# US 12,225,387 B2 · Communications device with concurrent operation in 5GHZ and 6GHZ U-NII frequency ranges

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,225,387 B2
- Document ID: US12225387B2
- Status: Granted
- Kind: B2
- Application number: 17/549,777
- Filed: 2021-12-13
- Published: 2023-03-30
- Granted: 2025-02-11
- Earliest claimed: 2021-09-29
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Scot Robertson; Andrew Guyette
- Web page: https://patentgrep.com/patent/US12225387B2

## CPC

- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04B 7/0413: MIMO systems
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

Communications devices are disclosed. A communications device includes an unlicensed national information infrastructure frequency range 1 (U-NII-1) to U-NII-2A transceiver coupled to a first antenna though a U-NII-1 to U-NII-2A coexistence filter, and a U-NII-2C to U-NII-8 transceiver coupled to a second antenna though a U-NII-2C to U-NII-8 coexistence filter.

## Claims

### Claim 1

A communications device, comprising:
an unlicensed national information infrastructure frequency range 1 (U-NII-1) to U-NII-2A transceiver coupled to a first antenna through a U-NII-1 to U-NII-2A coexistence filter; and
a U-NII-2C to U-NII-8 transceiver coupled to a second antenna through a U-NII-2C to U-NII-8 coexistence filter,
wherein a subrange of U-NII-2B defines an unused frequency spectrum of the communication device between the subrange U-NII-2A and the subrange U-NII-2C such that the respective coexistence filters are configured for concurrently filtering signals in the U-NII-1/U-NII-2A spectrum and the U-NII-2C to U-NII-8 spectrum.

### Claim 2 (depends on 1)

The communications device of claim 1, wherein
the U-NII-1 to U-NII-2A transceiver operates over a frequency range of 5.15 GHz to 5.34 GHz, and
U-NII-2C to U-NII-8 transceiver operates over a frequency range of 5.48 GHz to 7.125 GHz.

### Claim 3 (depends on 1)

The communications device of claim 1, wherein the U-NII-1 to U-NII-2A coexistence filter has a pass-band from 5.15 GHz to 5.34 GHZ, and a stop-band from 5.48 GHz to 7.125 GHz.

### Claim 4 (depends on 3)

The communications device of claim 3, wherein an input-output transfer function of the U-NII-1 to U-NII-2A coexistence filter is greater than or equal to −3 dB over a frequency range of 5.15 GHz to 5.34 GHZ, and less than or equal to −50 dB over a frequency range of 5.48 GHz to 7.125 GHz.

### Claim 5 (depends on 1)

The communications device of claim 1, wherein the U-NII-2C to U-NII-8 coexistence filter has a pass-band from 5.48 GHz to 7.125 GHZ, and a stop-band from 5.15 GHz to 5.34 GHz.

### Claim 6 (depends on 5)

The communications device of claim 5, wherein an input-output transfer function of the U-NII-2C to U-NII-8 coexistence filter is greater than or equal to −3 dB over a frequency range of 5.48 GHz to 7.125 GHZ, and less than or equal to −50 dB over a frequency range of 5.15 GHz to 5.34 GHz.

### Claim 7 (depends on 1)

The communications device of claim 1, wherein the U-NII-2C to U-NII-8 coexistence filter comprises a plurality of transversely-excited film bulk acoustic resonators (XBARs).

### Claim 8 (depends on 1)

The communication device of claim 1, wherein the first antenna and the second antenna are the same.

### Claim 9

A communications device, comprising:
an unlicensed national information infrastructure frequency range 1 (U-NII-1) to U-NII-2A multiple input, multiple output (MIMO) radio comprising one to four channels, each channel comprising a respective radio frequency front end (RFFE) coupled to a respective antenna through a respective U-NII-1 to U-NII-2A coexistence filter; and
a U-NII-2C to U-NII-8 MIMO radio comprising one to four channels, each channel comprising a respective radio frequency front end (RFFE) coupled to a respective antenna through a respective U-NII-2C to U-NII-8 coexistence filter
wherein a subrange of U-NII-2B defines an unused frequency spectrum of the communication device between the subrange U-NII-2A and the subrange U-NII-2C such that the respective MIMO radios are configured for concurrently filtering signals in the U-NII-1/U-NII-2A spectrum and the U-NII-2C to U-NII-8 spectrum.

### Claim 10 (depends on 9)

The communications device of claim 9, wherein
the U-NII-1 to U-NII-2A MIMO radio operates over a frequency range of 5.15 GHz to 5.34 GHz, and
U-NII-2C to U-NII-8 MIMO radio operates over a frequency range of 5.48 GHz to 7.125 GHz.

### Claim 11 (depends on 9)

The communications device of claim 9, wherein each U-NII-1 to U-NII-2A coexistence filter has a pass-band from 5.15 GHz to 5.34 GHz, and a stop-band from 5.48 GHz to 7.125 GHz.

### Claim 12 (depends on 11)

The communications device of claim 11, wherein an input-output transfer function of each U-NII-1 to U-NII-2A coexistence filter is greater than or equal to −3 dB over a frequency range of 5.15 GHz to 5.34 GHz, and less than or equal to −50 dB over a frequency range of 5.48 GHz to 7.125 GHz.

### Claim 13 (depends on 9)

The communications device of claim 9, wherein each U-NII-2C to U-NII-8 coexistence filter has a pass-band from 5.48 GHz to 7.125 GHz, and a stop-band from 5.15 GHz to 5.34 GHz.

### Claim 14 (depends on 13)

The communications device of claim 13, wherein an input-output transfer function of each U-NII-2C to U-NII-8 coexistence filter is greater than or equal to −3 dB over a frequency range of 5.48 GHz to 7.125 GHZ, and less than or equal to −50 dB over a frequency range of 5.15 GHz to 5.34 GHz.

### Claim 15 (depends on 9)

The communications device of claim 9, wherein each U-NII-2C to U-NII-8 coexistence filter comprises a plurality of transversely-excited film bulk acoustic resonators (XBARs).