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Efficient SRS resource indication methods

A resource and indication technology, applied in the field of telecommunications, to achieve the effect of reducing flexibility, reducing downlink control channel overhead, and reducing channel overhead

Active Publication Date: 2020-05-15
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following comments (below) on the protocol for signaling multiple SRIs from RAN1#90 address the issue, but do not draw conclusions on how it should be done

Method used

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  • Efficient SRS resource indication methods
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  • Efficient SRS resource indication methods

Examples

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Embodiment Construction

[0070] The following description presents various embodiments of the disclosed subject matter. These embodiments are presented as teaching examples and should not be construed as limiting the scope of the disclosed subject matter. For example, certain details of the described embodiments may be modified, omitted, or expanded without departing from the scope of the described subject matter.

[0071] Radio Node: As used herein, a "radio node" is a radio access node or wireless device.

[0072] Control Node: As used herein, a "control node" is a radio access node or wireless device for managing, controlling or configuring another node.

[0073] Radio Access Node: As used herein, a "radio access node" is any node in the radio access network of a cellular communication network that is operable to transmit and / or receive signals wirelessly. Some examples of radio access nodes include, but are not limited to: base stations (e.g., enhanced or evolved Node Bs (eNBs) in 3rd Generation...

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Abstract

A method of identifying reference signal resources to be used in a transmission by a wireless device is disclosed. The method comprises a wireless device receiving signaling configuring the wireless device with a plurality of reference signal resource groups, each group comprising a plurality of reference signal resources. The wireless device subsequently receives an indication, in a control channel, of a selection of reference signal resources to be used. Each of the plurality of reference signal resources to be used is selected from a different one of the plurality of reference signal resource groups such that reference signal resources belonging to the same reference signal resource group are not selected for simultaneous use. A reference signal is then transmitted to a network node inthe network using the indicated selection of reference signal resources.

Description

technical field [0001] The disclosed subject matter relates generally to telecommunications, and more particularly to efficient indication of SRS resources in next generation mobile wireless communication systems. Background technique [0002] The next generation of mobile wireless communication systems (5G or NR) will support various sets of use cases and various sets of deployment scenarios. The latter includes deployments at both low frequencies (hundreds of MHz) (similar to LTE today) and very high frequencies (millimeter waves in the tens of GHz). At high frequencies, propagation characteristics make it challenging to achieve good coverage. One solution to the coverage problem is to employ high-gain beamforming, usually in analog fashion, in order to achieve a satisfactory link budget. Beamforming will also be used at lower frequencies (usually digital beamforming) and is expected to be similar in nature to the already standardized 3GPP LTE system (4G). [0003] Furt...

Claims

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Application Information

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IPC IPC(8): H04B7/0417H04L5/00H04B7/06
CPCH04B7/0421H04B7/0691H04L5/0048H04L5/0007H04L5/0023H04L5/0091H04B7/0417H04B7/0456H04W88/02H04W88/08H04W72/21H04L5/005H04L5/0092H04L5/1469H04W72/046
Inventor S.法克塞尔A.尼尔松R.M.哈里松S.彼得松
Owner TELEFON AB LM ERICSSON (PUBL)
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