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Auxiliary antenna calibration for shared radio systems

A radio access, long-range radio technology, applied in radio transmission systems, diversity/multi-antenna systems, transmission systems, etc., and can solve problems such as estimated delay and redundant phase error

Pending Publication Date: 2022-07-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is redundant to estimate delay and phase error in both gNB and eNB

Method used

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  • Auxiliary antenna calibration for shared radio systems
  • Auxiliary antenna calibration for shared radio systems
  • Auxiliary antenna calibration for shared radio systems

Examples

Experimental program
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Embodiment Construction

[0056] Before describing the exemplary embodiments in detail, it is noted that the embodiments reside primarily in combinations of device components and processing steps related to NR-WD antenna calibration for LTE-NR radio sharing systems. Accordingly, components are represented in the drawings by conventional symbols as appropriate, and only those specific details relevant to an understanding of the embodiments are shown in order to avoid details that would be readily apparent to those of ordinary skill in the art having the benefit of the descriptions herein. obscures the disclosure.

[0057] As used herein, relational terms such as "first" and "second," "top" and "bottom" and the like may be used only to distinguish one entity or element from another, and are not necessarily required or implied any physical or logical relationship or order between such entities or elements.

[0058] Generally, all terms used herein are to be interpreted according to their ordinary meaning...

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PUM

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Abstract

A method, a network node and a wireless device (WD) for long term evolution (LTE)-new air interface (NR) radio sharing system antenna calibration are disclosed. According to one aspect, there is provided a method in a network node configured to communicate with a first wireless device according to a first radio access technology and to communicate with a second wireless device according to a second radio access technology. The method includes determining a delay and a phase error at a first processing block based at least in part on feedback from at least one of the first wireless devices. The method further includes compensating the first transmit signal based at least in part on the determined delay and phase error. The method further includes compensating the second transmit signal at the second processing block based at least in part on the determined delay and phase error received from the first processing block.

Description

technical field [0001] The present disclosure relates to wireless communications and, in particular, to NR-Wireless Device (WD) antenna calibration for shared radio systems such as Long Term Evolution (LTE)-New Radio (NR) radio shared systems. Background technique [0002] The 3rd Generation Partnership Project (3GPP) has developed and is developing fourth generation (4G) (also known as Long Term Evolution (LTE)) and fifth generation (5G) (also known as New Radio (NR)) wireless communication systems standard. Such systems provide, among other features, broadband communication between network nodes, such as base stations, and mobile wireless devices (WDs), as well as communication between network nodes and between WDs. [0003] Antenna Calibration [0004] figure 1 Four associated downlink transmit antennas are shown. This configuration is one of the most common 4-antenna configurations used in LTE base stations (eNBs) and will likely also be used in NR low-band systems...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B17/12
CPCH04B7/0617H04B7/0626H04B7/0639H04B17/12
Inventor 李韶华龙建国
Owner TELEFON AB LM ERICSSON (PUBL)