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Physical downlink shared channel reception and time domain resource indication method, device, storage medium, base station, terminal

A technology of physical downlink sharing and time-domain resources, which is applied in transmission path sub-channel allocation, signaling allocation, wireless communication, etc., can solve problems such as limited scheduling resources and unconfigurable UE time-domain dedicated tables, and achieve flexibility Effect

Active Publication Date: 2021-08-27
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the UE time-domain dedicated table used in DCI format 1-0 cannot be configured, resulting in limited scheduling resources available for PDSCH

Method used

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  • Physical downlink shared channel reception and time domain resource indication method, device, storage medium, base station, terminal
  • Physical downlink shared channel reception and time domain resource indication method, device, storage medium, base station, terminal
  • Physical downlink shared channel reception and time domain resource indication method, device, storage medium, base station, terminal

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Embodiment Construction

[0048] As mentioned in the background, the UE time-domain-specific tables used in the DCI format 1-0 cannot be configured, resulting in limited scheduling resources available for the PDSCH.

[0049] In the RAN192 meeting of the 3GPP radio access network, as shown in Table 1, there is proposal R1-1803504 discussing the time domain resources contained in the above table. Table 1 shows the configuration of all available PDSCH time domain resources in the existing solution. That is, the resource configuration indicated by index 0 to index 15 (including mapping type, slot offset, starting position and symbol length).

[0050] Specifically, when the mapping type is Type A, the pre-DMRS will be mapped according to the positions configured in the physical broadcast channel (Physical broadcast channel, PBCH), such as symbol 2 and symbol 3. When the mapping type is Type B, the pre-DMRS will be in the first symbol position of the time domain resource of the PDSCH.

[0051] However, the...

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Abstract

A physical downlink shared channel reception and its time domain resource indication method, device, storage medium, base station, terminal, the time domain resource indication method of the physical downlink shared channel includes: determining the transmission physical downlink according to the symbol position of the pre-demodulation reference signal The start symbol position of the time domain resource of the shared channel; determine a row index in a preset time domain table at least according to the start symbol position, each row index in the preset time domain table indicates a plurality of different start Positions and their corresponding symbol lengths, the multiple different starting positions correspond to multiple configurable symbol positions of the pre-demodulation reference signal; carry the row index in downlink control information and send it to the user equipment. The technical scheme of the invention can realize the flexibility of PDSCH scheduling.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device, storage medium, base station, and terminal for receiving a physical downlink shared channel and indicating time-domain resources thereof. Background technique [0002] In the frame structure of the New Radio (NR) system of the 3rd Generation Partnership Project (3GPP), each radio frame includes 10 same The size of the subframe is 1ms in length. Each subframe includes a plurality of slots. Each slot consists of a certain number of symbols, and the number of symbols is determined by a cyclic prefix (cyclic prefix, CP) type. [0003] In the prior art, formats of downlink control information (DCI) for scheduling a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) in NR include format 1_0 and format 1_1. Wherein, the above-mentioned DCI format includes a time domain resource assignment (time domain resource assignment), whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0048H04W72/23H04L5/0044H04L5/0053H04L5/0094H04L5/1469H04W72/0446H04W72/1263H04W72/30
Inventor 周欢黄甦
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD