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Methods, apparatus and systems for improving scheduling flexibility in a wireless communication

A technology of wireless communication equipment and wireless communication nodes, which is applied in the field of improving scheduling flexibility in wireless communication, and can solve the problems that the transmission scheduling system and method are not completely satisfactory, and the time offset is no longer applicable.

Active Publication Date: 2021-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the slot format changes dynamically, the time offset configured for aperiodic signals through higher layer signaling may no longer be applicable
Therefore, existing systems and methods for transmission scheduling are not entirely satisfactory

Method used

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  • Methods, apparatus and systems for improving scheduling flexibility in a wireless communication
  • Methods, apparatus and systems for improving scheduling flexibility in a wireless communication
  • Methods, apparatus and systems for improving scheduling flexibility in a wireless communication

Examples

Experimental program
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no. 4 example

[0101] For the fourth embodiment, the NR system introduces TRS (Tracking Reference Signal for Tracking or CSI-RS), which is a reference signal for fine time-frequency offset compensation. The TRS group consists of a CSI-RS resource set, which is the high-level parameter trs-Info of the CSI-RS resource set. When a base station transmits a PDSCH or the like, the PDSCH may be configured with a TCI (Transmission Configuration Indicator) status. The TCI state includes NZP CSI-RS resource ID, which corresponds to the CSI-RS resource under the TRS group. A previous TRS packet has been sent, and the UE has obtained parameters for time-frequency offset estimation through the TRS packet. For example, parameters for time-frequency offset estimation may include: Doppler frequency shift, Doppler spread, average delay and delay spread. In this way, when demodulating the PDSCH, the UE can directly compensate the demodulation of the PDSCH by using the parameters of the time-frequency offset...

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PUM

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Abstract

Methods, apparatus and systems for improving scheduling flexibility in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication node is disclosed. The method includes: generating at least one indicator configured for updating scheduling information for a first transmission with a semi-persistent scheduling, the scheduling information including information related to at least one of: a sounding reference signal resource indicator, a transmission configuration indicator, and a timing advance; and transmitting the at least one indicator to at least one wireless communication device.

Description

technical field [0001] The present disclosure relates generally to wireless communications, and more particularly, to methods, apparatus, and systems for increasing scheduling flexibility in wireless communications. Background technique [0002] Both fourth generation (4G) and fifth generation (5G) new radio (NR) mobile networks support semi-persistent scheduling, mainly for services with long duration, small transmission packets, such as voice services. For downlink transmissions, the NR base station can activate semi-persistent scheduling by using downlink control information (DCI) scrambled by the configured scheduling radio network temporary identifier (CS-RNTI). Physical downlink shared channel (physical downlink shared channel, PDSCH). A similar method is also supported for uplink (UL) transmissions. In addition, the PUSCH for UL semi-persistent scheduling may also be configured and activated by using higher layer radio resource control (radio resource control, RRC) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04W72/0446H04W72/23H04W72/535H04L5/0053H04W56/0015H04W52/0216Y02D30/70H04W72/0453H04L5/001H04W76/11H04B7/01H04L5/0023H04L5/0051H04L25/0226
Inventor 蒋创新鲁照华吴昊高波张淑娟李儒岳肖华华
Owner ZTE CORP