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Doppler shift or Doppler spread as input for beam switching or node switching in wireless networks

A Doppler extension, network node technology, applied in the field of wireless communication

Active Publication Date: 2022-02-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in a direction tangential to the main axis of the beam, the combination of narrow beamwidths and fast-moving users will still result in short beam-switching time windows

Method used

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  • Doppler shift or Doppler spread as input for beam switching or node switching in wireless networks
  • Doppler shift or Doppler spread as input for beam switching or node switching in wireless networks
  • Doppler shift or Doppler spread as input for beam switching or node switching in wireless networks

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Embodiment Construction

[0016] While the solutions described above may be implemented in any suitable type of system using any suitable components, specific embodiments of the described solutions may be found in, for example, figure 1 implemented in the wireless network of the example wireless communication network illustrated in . In general, wireless communication networks provide communication and other types of services to one or more wireless devices. exist figure 1 In the simplified example shown in , the wireless communication network includes radio network nodes 10A and 10B, which are base stations or other access points that facilitate access by wireless devices and / or use of services provided over the wireless communication network. figure 1 An example wireless device 15 is also illustrated in . Although in figure 1 Not shown in , but the wireless communication network may further include any additional elements suitable to support communication between wireless devices or between a wire...

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Abstract

A technique in a node of a wireless communication network in which one or more wireless devices are served via a beam transmitted by the network node. An example method includes estimating ( 910 ), for a wireless device operating in a wireless communication network, a Doppler shift associated with movement of the wireless device or a Doppler spread associated with movement of the wireless device, or both. The method further includes evaluating (920) a change in an estimated Doppler shift associated with the wireless device or an estimated Doppler spread associated with the wireless device, or both, based on the estimating, and based on the estimated Doppler shift Adjusting (930) at least one mobility-related parameter based on said assessment of the change in LE or the assessment of the estimated Doppler spread, or both. The method further includes performing (940) one or more mobility procedures for the wireless device based on the adjusted at least one mobility-related parameter.

Description

technical field [0001] The present disclosure relates generally to wireless communications, and more particularly, to methods and apparatus for performing mobility procedures in wireless communications networks. Background technique [0002] Initial developments in wireless communication technology for so-called fifth generation wireless networks, often referred to as "5G," are being undertaken within the 3rd Generation Partnership Project (3GPP) and other industry groups. Also possible in 5G, among other possible developments, is the use of directional beams for some or all communications between wireless devices and the radio access network. These directional beams may be formed by network nodes for transmission to wireless devices (ie, for downlink transmissions), or for receiving transmissions from wireless devices (ie, for uplink reception), or both. Thus, cell-centric approaches to mobility and other wireless network aspects can be replaced with augmented beam-centric...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04L1/00
CPCH04B7/0626H04B7/0617H04L1/0027H04W76/28G01S11/10H04B7/0619
Inventor T.帕勒尼厄斯M.桑德格仁
Owner TELEFON AB LM ERICSSON (PUBL)