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Determination of demodulation reference signal

A parameter and channel technology, applied in the directions of pilot signal allocation, signaling allocation, wireless communication, etc., can solve the problems of delay, operation inefficiency, technical inefficiency, etc.

Active Publication Date: 2022-05-13
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While some techniques for supporting license-free uplink transmissions may be effective, these techniques may be inefficient and expose UEs to unnecessary delays and operational inefficiencies

Method used

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  • Determination of demodulation reference signal
  • Determination of demodulation reference signal
  • Determination of demodulation reference signal

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] Some examples of wireless communication systems may support a variety of different radio access technologies, including licensed and unlicensed radio spectrum bands. For example, a user equipment (UE) may support a fourth generation (4G) system, such as a long term evolution (LTE) system, an LTE advanced (LTE-A) system, or an LTE-A Pro system, and a fifth generation (5G) new radio ( NR) system. 5G NR may support license-free (eg, semi-statically configured) Physical Uplink Shared Channel (PUSCH) transmission. In some examples, 5G NR may support multiple different types of license-free PUSCH transmissions, eg, Type 1 PUSCH or Type 2 PUSCH. License-free PUSCH may also be referred to as configured authorized PUSCH or PUSCH with configured authorized. Similarly, a Type 1 PUSCH may be referred to as a configured grant Type 1 PUSCH, and a Type 2 PUSCH may be referred to as a configured grant Type 2 PUSCH.

[0041] For the type 1 PUSCH, the UE may receive a parameter set co...

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Abstract

Methods, systems and devices for wireless communications are described. A method may include receiving radio resource control signaling configured with a first set of demodulation reference signal parameters for transmission of an uplink data channel of type, receiving downlink control information in a format of activating transmission of the uplink data channel, identifying a second set of demodulation reference signal parameters for transmission of the type of uplink data channel based on the received downlink control information, and using the first set of demodulation reference signal parameters The first set and the second set are used to activate the transmission of the uplink data channel.

Description

[0001] cross reference [0002] This patent application requires the U.S. patent application entitled "DETERMINATION OFDEMODULATION REFERENCE SIGNAL AND PHASE TRACKING REFERENCE SIGNAL PARAMETERS" ("Determination of Demodulation Reference Signal and Phase Tracking Reference Signal Parameters") filed on October 18, 2019 by YANG et al. No.16 / 657,883 and YANG et al. on November 15, 2018 entitled "DETERMINATION OF DEMODULATION REFERENCE SIGNALAND PHASE TRACKING REFERENCE SIGNAL PARAMETERS" ("Determination of Demodulation Reference Signal and Phase Tracking Reference Signal Parameters") Priority to Provisional Patent Application No. 62 / 768,087 is assigned to the present assignee. Background technique [0003] The following relates generally to wireless communications, and more specifically to the determination of demodulation reference signal and phase tracking reference signal parameters. [0004] Wireless communication systems are widely deployed to provide various types of comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/0051H04L5/0053H04L5/0091H04W76/27H04W72/04H04W72/23
Inventor 杨桅蒋靖A.马诺拉克斯C-P.李
Owner QUALCOMM INC