Granted Patent B2

US 12,445,103 · App. 17/931,394 · Granted Oct 14, 2025

Inventors: Kehui Cai (Beijing, CN); Hongli Zhang (Beijing, CN); Farhan Hasnain (San Jose, CA)

Assignee: Hewlett Packard Enterprise Development LP

H03H9/0095H03H3/02H03H9/703H03H2003/021

Abstract

Claims (59)

1. A method for continuous 5 GHz and 6 GHz operation by a network device, comprising:

receiving, by the network device, a first signal in a 5 GHz band;

generating, by the network device, a second signal in a 6 GHz band;

selecting, by the network device, a first filter or a second filter to be applied the first signal in the 5 GHz band, wherein the first filter allows a lower frequency band to pass than the second filter in the 5 GHz band;

selecting, by the network device, a third filter or a fourth filter to be applied to the second signal in the 6 GHz band, wherein the third filter allows a lower frequency band to pass than the fourth filter in the 6 GHz band, and wherein the third filter achieves at least a 50 dB rejection in a transition gap of 200 MHz; and

simultaneously applying, by the network device, the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

2. The method of claim 1 , wherein each of the first, second, third, and fourth filters comprises a low temperature co-fired ceramic (LTCC) filter, a dielectric resonator (DR) filter, a bulk acoustic wave (BAW) filter, or a combination thereof.

3. The method of claim 1 , further comprising:

transmitting, by the network device, the filtered second signal.

4. The method of claim 1 , wherein receiving the first signal and generating the second signal further comprises:

receiving, by a first antenna connected to a first radio operating at the 5 GHz band, the first signal; and

generating, by a second radio operating at the 6 GHz band and connected to a second antenna, the second signal.

5. The method of claim 4 , further comprising:

processing, by the first radio, the filtered first signal; and

transmitting, by the second antenna, the filtered second signal.

6. The method of claim 1 , wherein the first filter allows a first frequency band in the range of 5150 to X MHz to pass, and the second filter allows a second frequency band in the range of X to 5895 MHz to pass, wherein X is a frequency between 5150 to 5895 MHz.

7. The method of claim 1 , wherein the third filter allows a third frequency band in the range of 5945 to Y MHz to pass, and the fourth filter allows a fourth frequency band in the range of Y to 7125 MHz to pass, wherein Y is a frequency between 5945 to 7125 MHz.

8. The method of claim 1 , wherein the second filter achieves at least a 50 dB rejection in a transition gap of 200 MHz.

9. A network device for continuous 5 GHz and 6 GHz operation, comprising:

a processing resource; and

a non-transitory machine-readable storage medium comprising instructions executable by the processing resource to:

receive a first signal in a 5 GHz band;

generate a second signal in a 6 GHz band;

select a first filter or a second filter to be applied to the first signal in the 5 GHz band, wherein the first filter allows a lower frequency band to pass than the second filter in the 5 GHz band;

select a third filter or a fourth filter to be applied to the second signal in the 6 GHz band, wherein the third filter allows a lower frequency band to pass than the fourth filter in the 6 GHz band, and wherein the third filter achieves at least a 50 dB rejection in a transition gap of 200 MHz; and

simultaneously apply the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

10. A network device of claim 9 , further comprising:

a first radio operating at the 5 GHz band and connected to a first antenna;

a second radio operating at the 6 GHz band and connected to a second antenna; and

wherein the instructions to receive the first signal and to generate the second signal comprise instructions executable by the processing resource to:

receive, by the first antenna, the first signal; and

generate, by the second radio, the second signal.

11. A network device of claim 10 , wherein the instructions comprise instructions executable by the processing resource to:

process, by the first radio, the filtered first signal; and

transmit, by the second antenna, the filtered second signal.

12. A network device of claim 9 , further comprising:

a switching device; and

wherein the instructions to select the first or second filter, select the third or fourth filter, and simultaneously apply the selected first and second filter and the selected third or fourth filter comprise instructions executable by the processing resource to:

select, by the switching device, the first or second filter to be applied to the first signal;

select, by the switching device, the third or fourth filter to be applied to the second signal; and

apply, by the switching device, the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

13. A network device of claim 9 , further comprising:

a first switch, a second switch, a third switch, and a fourth switch; and

wherein the instructions to select the first or second filter and select the third or fourth filter, and apply the selected first and second filter and the selected third or fourth filter comprise instructions executable by the processing resource to:

select, by the first switch, the first or second filter to be applied to the first signal;

select, by the second switch, the third or fourth filter to be applied to the second signal; and

select, by third switch, the filtered first signal; and

select, by the fourth switch, the filtered second signal.

14. The network device of claim 9 , wherein the first filter allows a first frequency band in the range of 5150 to X MHz to pass, and the second filter allows a second frequency band in the range of X to 5895 MHz to pass, wherein X is a frequency between 5150 to 5895 MHz.

15. The network device of claim 9 , wherein the third filter allows a third frequency band in the range of 5945 to Y MHz to pass, and the fourth filter allows a fourth frequency band in the range of Y to 7125 MHz to pass, wherein Y is a frequency between 5945 to 7125 MHz.

16. The network device of claim 9 , wherein the second filter achieves at least a 50 dB rejection in a transition gap of 200 MHz.

17. An article comprising at least one non-transitory machine-readable storage medium comprising instructions executable by the at least one processing resource of a network device to:

receive a first signal in a 5 GHz band;

generate a second signal in a 6 GHz band;

select a first filter or a second filter to be applied to the first signal in the 5 GHz band, wherein the first filter allows a lower frequency band to pass than the second filter in the 5 GHz band;

select a third filter or a fourth filter to be applied to the second signal in the 6 GHz band, wherein the third filter allows a lower frequency band to pass than the fourth filter in the 6 GHz band, and wherein the third filter achieves at least a 50 dB rejection in a transition gap of 200 MHz; and

apply the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

18. The article of claim 17 , wherein the first filter allows a first frequency band in the range of 5150 to X MHz to pass, and the second filter allows a second frequency band in the range of X to 5895 MHz to pass, wherein X is a frequency between 5150 to 5895 MHz, and the third filter allows a third frequency band in the range of 5945 to Y MHz to pass, and the fourth filter allows a fourth frequency band in the range of Y to 7125 MHz to pass, wherein Y is a frequency between 5945 to 7125 MHz.

19. The article of claim 17 , wherein the second filter achieves at least a 50 dB rejection in a transition gap of 200 MHz.

Assignments (1)

Continuity (2)

References Cited (43)