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Reference signal transmission window and timing considerations

A reference signal, timing offset technique, applied in the field of reference signal transmission window and timing considerations

Active Publication Date: 2020-07-07
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various SRS timing considerations are described below

Method used

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  • Reference signal transmission window and timing considerations
  • Reference signal transmission window and timing considerations
  • Reference signal transmission window and timing considerations

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Embodiment Construction

[0047] Some wireless communications may benefit from or rely on estimates of channel conditions between communicating devices. For example, a base station can schedule resources for individual UEs based on frequency-dependent information associated with each UE. Such frequency-dependent information (as well as other CSI) may be determined based at least in part on a channel sounding process. Channel sounding may refer to an operation in which a UE transmits an SRS, which is used by a base station for channel estimation. For example, a base station (or some other network access device) may configure a UE with a reference signal configuration. For example, a reference signal configuration may include an indication of one or more use cases for a reference signal, including uplink CSI acquisition, uplink non-codebook based precoding, downlink CSI acquisition, uplink simulation Beamforming, its combination, etc. The timing required for the UE to perform the channel sounding proc...

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Abstract

Methods, systems, and devices for wireless communications are described. These wireless communications may include channel estimation procedures between communicating devices such as a base station and user equipment (UE). For example, the UE may receive, from the base station, a resource grant triggering a given reference signal configuration. Based at least in part on the type of reference signal configuration, the UE (e.g., and the base station) may determine a timing offset relative to the resource grant. The UE may transmit (and the base station may receive) the reference signal based atleast in part on the timing offset. In some cases, the reference signal may be transmitted in a transmission opportunity of a set of transmission opportunities, where the set of transmission opportunities is determined based at least in part on the reference signal configuration.

Description

[0001] cross reference [0002] This patent application claims the benefit of the following application: Greek Provisional Patent Application No. 20170100535; and U.S. Patent Application No. 16 / 198,624, "Reference Signal Transmission Window and Timing Considerations," filed November 21, 2018, by Manolakos et al.; Each application is assigned to the assignee of this application. technical field [0003] The following relates generally to wireless communications and, more specifically, to reference signal transmission windows and timing considerations. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems are capable of supporting communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems (e.g...

Claims

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Application Information

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IPC IPC(8): H04L5/00
CPCH04L25/0226H04L5/0048H04L5/0091H04L5/001H04L5/0051H04L5/0053H04L5/0078H04L5/005H04L25/0202H04W88/08H04W88/02H04W72/23
Inventor A·马诺拉科斯A·里科阿尔瓦里尼奥A·森古普塔陈万士P·加尔
Owner QUALCOMM INC