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A data transmission instruction, processing method and device

A data transmission and indication technology, applied in the direction of synchronization devices, wireless communications, electrical components, etc., can solve problems such as data conflicts of different lengths of TTI

Active Publication Date: 2020-03-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a data transmission instruction, processing method and device to solve the problem that TTI data of different lengths will collide when TTI data of different lengths are simultaneously transmitted on the same carrier in the same subframe

Method used

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  • A data transmission instruction, processing method and device
  • A data transmission instruction, processing method and device
  • A data transmission instruction, processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0198] Figure 6 It is a schematic diagram of how the base station instructs the PUSCH of the terminal 1 to make a puncture, as shown in the figure, assuming that the base station is in the traditional control area of ​​the downlink subframe n (occupying the first 1-4 OFDM (Orthogonal Frequency Division Multiplex, orthogonal frequency division multiplex) of a subframe frequency division multiplexing) symbol) to send UL grant_1 to instruct Terminal 1 to schedule a PUSCH with a 1ms length TTI transmission, assuming that the 1ms length TTI PUSCH scheduled by the UL grant_1 according to a certain scheduling sequence is transmitted on the uplink subframe n+4, and the base station In downlink subframe n+3, use shortened DCI (short DCI) to send UL grant_2 to schedule a TTI with a length of 2 symbols to transmit PUSCH. This short TTI data is in the 8th and 9th symbol positions of the 1ms length TTI in uplink subframe n+4 Transmission and frequency resources completely overlap.

[019...

Embodiment 2

[0203] Figure 7 A schematic diagram of puncture indicating the PUSCH of Terminal 1 for the base station in Embodiment 2, as shown in Figure 7 As shown, it is assumed that the base station sends UL grant_1 in the traditional control area of ​​downlink subframe n to instruct terminal 1 to schedule a PUSCH with a length of 1 ms TTI transmission. For transmission on +4, the base station sends a UL grant_2 scheduling TTI with a length of 2 symbols to transmit PUSCH in the traditional control area in the downlink subframe n+3. This short TTI data is in the 13th TTI of 1ms length in the uplink subframe n+4 , Transmission at 14 symbol positions, and frequency resources completely overlap. The base station chooses to send the notification signaling P while sending the UL grant_2 in the traditional control area of ​​the downlink subframe n+3. The indication field of the notification signaling P is 6-bit information, and the first 4 bits indicate the starting symbol position of the pu...

Embodiment 3

[0207] Figure 8 A schematic diagram of puncture indicating the PUSCH of Terminal 1 for the base station in Embodiment 3, as shown in Figure 8 As shown, it is assumed that the base station sends UL grant_1 in the traditional control area of ​​downlink subframe n to instruct terminal 1 to schedule a PUSCH with a length of 1 ms TTI transmission. For transmission on +4, the base station sends UL grant_2 in the shortened DCI of downlink subframe n+1 to schedule a TTI with a length of 2 symbols to transmit PUSCH. 7 symbol positions are transmitted, and the frequency resources are completely overlapped. The base station sends UL grant_3 in the shortened DCI of the downlink subframe n+2 to schedule a TTI with a length of 2 symbols to transmit PUSCH. The TTI data is in the 1ms length of the uplink subframe n+4. The 9th and 10th symbol positions of the TTI are transmitted, and the frequency resources completely overlap. The base station selects the shortened DCI of the downlink subf...

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Abstract

The present invention discloses a data transmission instruction, processing method and device, comprising: during uplink, sending uplink scheduling information to a terminal on the side of a base station to schedule a shared physical uplink using a first transmission time interval length for uplink transmission channel: after sending the uplink scheduling information, send uplink notification signaling to the terminal to instruct the terminal to perform puncturing on the physical uplink shared channel using the first transmission time interval length for uplink transmission according to the uplink notification signaling . During downlink, perform puncturing on the base station side and send downlink notification signaling to the terminal to instruct the terminal to determine according to the downlink notification signaling that the physical downlink shared channel that uses the first transmission time interval length for downlink transmission has been Symbol for performing hole punching. By adopting the present invention, the conflict problem of simultaneous transmission of data with different lengths of transmission time intervals in the same subframe and the same carrier is solved, and the receiving performance of the receiving end can be improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission instruction, processing method and device. Background technique [0002] After the short TTI (Transmission Time Interval, transmission time interval) is introduced in the LTE (Long Term Evolution, long term evolution) system, there will be a problem that short TTI data and 1ms TTI data are simultaneously transmitted on the same carrier in the same subframe. [0003] figure 1 It is a schematic diagram of the simultaneous scheduling of the regular latency terminal 1 and the low latency terminal 2 in the same subframe and the same carrier, as shown in figure 1 , the base station transmits UL grant_1 (uplink scheduling information) in subframe n to schedule a terminal 1 to perform PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) transmission in subframe n+4. At this time, there is a low-latency terminal 2 There is a d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/0446H04W72/21H04W56/00H04W72/04H04W72/12
Inventor 林祥利潘学明高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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