Enhancing data throughput using multiple receivers

Patent metadata

Field	Value
Publication number	US-9326171-B2
Application number	US-201414203000-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Mar 10, 2014
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

An apparatus includes a first low noise amplifier (LNA) in a first receive path. The apparatus further includes receive circuitry in the first receive path. The receive circuitry is configured to receive an output of the first LNA and to receive an output of a second LNA within a second receive path.

First claim

What is claimed is:

1. An apparatus comprising:
a first low noise amplifier (LNA) in a first receive path, the first receive path associated with a first receiver;
receive circuitry in the first receive path, the receive circuitry coupled to an output of the first LNA and coupled to an output of a second LNA within a second receive path, the second receive path associated with a second receiver; and
circuitry including a sampling rate adjuster and a buffer, the circuitry coupled to an output of the receive circuitry and coupled to an input of the second receiver.

2. The apparatus of claim 1 , wherein the first receiver is coupled to the second receiver via pre-processing circuitry.

3. The apparatus of claim 1 , wherein the receive circuitry is configured to receive the output of the first LNA during a first mode of the first receiver at a first time, and wherein the receive circuitry is further configured to receive the output of the second LNA during a second mode of the first receiver at a second time.

4. The apparatus of claim 1 , wherein the circuitry the pre-processing circuitry configured to provide a network measurement to the second receiver to increase data throughput of the second receiver by enabling the second receiver to detect availability of one or more network resources.

5. The apparatus of claim 1 , wherein:
the receive circuitry is responsive to a first signal generated by the second LNA to generate a second signal, and
the circuitry is configured to generate a third signal based on the second signal, the third signal representing a network measurement.

6. The apparatus of claim 1 , wherein:
the receive circuitry is configured to generate a second signal based on a first signal from the second receiver;
the sampling rate adjuster is configured to adjust a sampling rate of the second signal to generate a third signal; and
the buffer is configured to buffer samples of the third signal.

7. The apparatus of claim 6 , wherein the sampling rate adjuster is further configured to adjust a sample rate of the samples from a first sample rate associated with the first receiver to a second sample rate associated with the second receiver.

8. The apparatus of claim 1 , further comprising a switch, wherein the switch is coupled to the first LNA, and wherein the switch is configured to decouple the first LNA from the receive circuitry while the receive circuitry receives the output of the second LNA.

9. The apparatus of claim 1 , further comprising a shared path that couples the receive circuitry to the first LNA and to the second LNA to enable sharing of resources between the first receive path and the second receive path.

10. The apparatus of claim 1 , further comprising a modem that is coupled to the receive circuitry, wherein the modem is configured to enter a low-power mode of operation while the receive circuitry receives the output of the second LNA.

11. A method comprising:
receiving a first output of a first low noise amplifier (LNA) in a first receive path associated with a first receiver, the first output of the first LNA received by receive circuitry within the first receive path;
receiving a second output of a second LNA that is within a second receive path associated with a second receiver, the second output of the second LNA received by the receive circuitry; and
adjusting a sampling rate of a second signal to generate a third signal, the second signal based on a first signal from the second LNA, and buffering samples of the third signal.

12. The method of claim 11 , wherein the receive circuitry receives the output of the first LNA during a first mode of the first receiver at a first time.

13. The method of claim 12 , wherein the receive circuitry receives the output of the second LNA during a second mode of the first receiver at a second time.

14. The method of claim 12 , wherein the first receiver is idle with respect to a first wireless network associated with the first receiver while the second receiver receives a signal via a second wireless network and generates the second output of the second LNA based on the signal.

15. The method of claim 14 , wherein the first wireless network corresponds to a local data network, and wherein the second wireless network corresponds to a cellular network.

16. An apparatus comprising:
means for amplifying a first signal, wherein the means for amplifying the first signal is included in first means for propagating received signals, the first means for propagating received signals associated with first means for receiving signals;
means for receiving an output of the means for amplifying the first signal and for receiving an output of means for amplifying a second signal, wherein the means for receiving is included in the first means for propagating received signals, and wherein the means for amplifying the second signal is included in second means for propagating received signals, the second means for propagating received signals associated with second means for receiving signals; and
means for adjusting a sampling rate and for buffering a signal, the means for adjusting and buffering coupled to an output of the means for receiving and coupled to an input of the second means for receiving signals.

17. The apparatus of claim 16 , wherein the first means for receiving signals is coupled to the second means for receiving signals via means for providing a network measurement.

18. The apparatus of claim 16 , wherein the means for adjusting and buffering includes means for providing a network measurement to the input of the second means for receiving signals.

19. The apparatus of claim 16 , further comprising means for selectively decoupling the means for amplifying the first signal from the means for receiving.

20. The apparatus of claim 16 , further comprising means for coupling the means for receiving to the means for amplifying the first signal and to the means for amplifying the second signal.

Assignees

• Qualcomm Inc

Inventors

• Kohlmann Michael
• Persico Charles James
• Kim Beomsup

Classifications

• H04B1/0082

  with a common local oscillator for more than one band · CPC title

• H04B1/18

  Input circuits, e.g. for coupling to an antenna or a transmission line (coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H) · CPC title

• H04B1/3805 Primary

  with built-in auxiliary receivers · CPC title

• H04W24/08 Primary

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04B1/16

  Circuits · CPC title