# US 2019/0173547 A1 · Reference signaling in with antenna arrays

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- Number: US 2019/0173547 A1
- Document ID: US20190173547A1
- Status: Published application
- Kind: A1
- Application number: 16/324,609
- Filed: 2016-08-12
- Published: 2019-06-06
- Earliest claimed: 2016-08-12
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Shaohua LI; Qingyu MIAO; Jianfeng WANG
- Web page: https://patentgrep.com/patent/US20190173547A1

## CPC

- H04B 7/0617: {for beam forming}
- H04B 7/0413: MIMO systems
- H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping}
- H04B: TRANSMISSION

## Abstract

This disclosure pertains to a network node for a wireless communication network, the network node being adapted for transmitting reference signaling utilising an antenna array, the network node further being adapted for transmitting the reference signaling in a pattern, the pattern being determined based on a beamforming state for transmitting the reference signaling and/or based on a beam reception state. The disclosure also pertains to related devices and methods.

## Claims

### Claim 1

A network node for a wireless communication network, the network node being adapted to:
transmit reference signaling utilising an antenna array,
transmit the reference signaling in a pattern, the pattern being determined based on a beamforming state for transmitting the reference signaling and/or based on a beam reception state.

### Claim 2 (depends on 1)

The network node according to claim 1, wherein determining the pattern comprises determining the density of the pattern.

### Claim 3 (depends on 1)

The network node according to claim 1, wherein the network node is further adapted to:
determine the pattern based on received signaling.

### Claim 4 (depends on 1)

The network node according to claim 1, wherein the network node is further adapted to:
successively transmit a first beam having a first angular size, and a second beam having a second angular size, the first angular size being different than the second angular size, wherein reference signaling of the first beam has a pattern different from reference signaling of the second beam.

### Claim 5

A method of operating a network node in a wireless communication network, the method comprising:
transmitting reference signaling utilising an antenna array, wherein the reference signaling is transmitted in a pattern, the pattern being determined based on a beamforming state for transmitting the reference signaling and/or based on a beam reception state.

### Claim 6 (depends on 5)

The method according to claim 5, wherein determining the pattern comprises determining the density of the pattern.

### Claim 7 (depends on 5)

The method according to claim 5, wherein determining the pattern is based on received signaling.

### Claim 8 (depends on 5)

The method according to claim 5, the method further comprising:
successively transmitting a first beam having a first angular size, and a second beam having a second angular size, the first angular size being different than the second angular size, wherein reference signaling of the first beam has a pattern different from reference signaling of the second beam.

### Claim 9

A terminal configured to operate in a wireless communication network, the terminal being adapted to:
provide a pattern report pertaining to received reference signaling based on a pattern configuration.

### Claim 10

A method to operate a terminal in a wireless communication network, the method comprising:
providing a pattern report pertaining to received reference signaling based on a pattern configuration.

### Claim at position 11

-12. (canceled)