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DCI receiving and sending method and device for multi-TTI data scheduling, storage equipment, user terminal and network side

A technology of data scheduling and receiving method, applied in the field of communication, can solve the problem of less HARQID and so on

Active Publication Date: 2020-07-07
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above rules, the HARQ IDs corresponding to the scheduled transmission time intervals (Transmission Time Interval, TTI) are continuous, and the scheduled TTIs are also continuous. In the case that some HARQ IDs are occupied, it may cause The number of HARQ IDs that can be continuously scheduled is small

Method used

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  • DCI receiving and sending method and device for multi-TTI data scheduling, storage equipment, user terminal and network side
  • DCI receiving and sending method and device for multi-TTI data scheduling, storage equipment, user terminal and network side
  • DCI receiving and sending method and device for multi-TTI data scheduling, storage equipment, user terminal and network side

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Embodiment Construction

[0039] In the prior art, one downlink control information DCI can schedule multiple consecutive uplink subframes. The number of scheduled subframes is dynamically indicated by the DCI. Multiple consecutive subframes use the same frequency domain resources. The first scheduled subframe The HARQ ID of the subframe is indicated by the DCI, and the HARQ IDs of other subframes are consecutive and in ascending order, that is, adding 1 to the HARQ ID of the previous subframe successively.

[0040] refer to figure 1 , figure 1 It is a schematic diagram of downlink scheduling time indication in the prior art.

[0041] In 5G NR, the units of K0 and K1 are slots. K0 represents the time interval between the Physical Downlink Shared Channel (PDSCH) and the Physical Downlink Control Channel (PDCCH). PDSCH is used for To transmit downlink data, PDCCH is used to transmit DCI. K1 is used to indicate the time interval between HARQ-ACK feedback and PDSCH.

[0042] Such as figure 1 As shown,...

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Abstract

The invention discloses a method and a device for receiving and sending DCI for multi-TTI data scheduling, storage equipment, a user terminal and a network side. The receiving method comprises: receiving DCI from the network side; determining a set of HARQ IDs, and selecting M HARQ IDs from the set of HARQ IDs to serve as an HARQ ID subset for the first transmission of data, wherein the first HARQID in the HARQ ID subset is an HARQ ID corresponding to the first TTI; determining the received data of the plurality of TTIs or the data of the plurality of TTIs to be sent; and determining the HARQID corresponding to the data of each TTI according to the sequence of the HARQ IDs in the HARQ ID subset. According to the scheme provided by the invention, more continuously scheduled HARQ IDs can be obtained, so that the control signaling overhead is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and device for receiving and sending DCI scheduled by multi-TTI data, a storage device, a user terminal, and a network side. Background technique [0002] In the prior art, Hybrid Automatic Repeat reQuest (HARQ) is a method that combines Forward Error Correction (FEC) and Automatic Repeat reQuest (ARQ) Technology. FEC enables the information receiver to correct some errors by adding redundant information, thereby reducing the number of retransmissions. For errors that cannot be corrected by FEC, the information receiving end will request the sending end to resend the data through the ARQ mechanism. The information receiving end uses an error detection code, usually a cyclic redundancy check (Cyclic Redundancy Check, CRC), to detect whether the received data packet has an error. If there is no error, the information receiving end will send a positive...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L5/00
CPCH04L5/0053H04W72/23
Inventor 张飒沈兴亚
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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