Signal splitting carrier aggregation receiver architecture

Patent metadata

Field	Value
Publication number	US-9252827-B2
Application number	US-201213411461-A
Country	US
Kind code	B2
Filing date	Mar 2, 2012
Priority date	Jun 27, 2011
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A wireless communication device configured for receiving a multiple carrier signal is described. The wireless communication device includes a primary signal splitting carrier aggregation architecture. The primary signal splitting carrier aggregation architecture includes a primary antenna and a transceiver chip. The primary signal splitting carrier aggregation architecture reuses a first diversity/simultaneous hybrid dual receiver path. The wireless communication device also includes a secondary signal splitting carrier aggregation architecture. The secondary signal splitting carrier aggregation architecture includes a secondary antenna and a receiver chip. The secondary signal splitting carrier aggregation architecture reuses a second diversity/simultaneous hybrid dual receiver path.

First claim

What is claimed is:

1. A wireless communication device configured for receiving a multiple carrier signal, comprising:
a primary signal splitting carrier aggregation architecture comprising:
a primary antenna;
a transceiver chip comprising a first primary receiver and a first secondary receiver, the transceiver chip configured for both carrier aggregation operation and diversity/simultaneous hybrid dual receiver operation; and
routing configured to route a signal split from a signal received from the primary antenna into a first primary signal and a first secondary signal, the routing further configured to route the first secondary signal to the first secondary receiver from a path within the first primary receiver; and

a secondary signal splitting carrier aggregation architecture comprising:
a secondary antenna;
a receiver chip comprising a second primary receiver and a second secondary receiver, the receiver chip configured for both carrier aggregation operation and diversity/simultaneous hybrid dual receiver operation:
routing configured to route a signal received from the secondary antenna to the second primary receiver and the second secondary receiver.

2. The wireless communication device of claim 1 , wherein the primary signal splitting carrier aggregation architecture and the secondary signal splitting carrier aggregation architecture do not require four antennas, a power splitter, an external low noise amplifier or die-to-die signal routing.

3. The wireless communication device of claim 1 , wherein the transceiver chip comprises:
a transmitter;
wherein each receiver comprises multiple low noise amplifiers for a first band and multiple low noise amplifiers for a second band, and wherein each low noise amplifier comprises a first stage amplifier and a second stage amplifier.

4. The wireless communication device of claim 3 , wherein the first stage amplifier is a transconductance stage, and wherein the second stage amplifier is a cascode stage.

5. The wireless communication device of claim 3 , wherein the first band is a low band and the second band is a mid band.

6. The wireless communication device of claim 3 , wherein the first band is a low band and the second band is a high band.

7. The wireless communication device of claim 3 , wherein the first band is a mid band and the second band is a high band.

8. The wireless communication device of claim 3 , wherein:
the routing configured to route a signal split from a signal received from the primary antenna further comprises:
a first routing from the primary antenna through the first primary receiver to obtain the first primary signal comprising a first primary inphase/quadrature signal; and
a second routing from the first primary receiver through the first secondary receiver to obtain the first secondary signal comprising a first secondary inphase/quadrature signal; and

the routing configured to route a signal received from the secondary antenna further comprises:
a third routing is used from the secondary antenna through the second primary receiver to obtain a second primary inphase/quadrature signal; and
a fourth routing is used from the secondary antenna through the second secondary receiver to obtain a second secondary inphase/quadrature signal.

9. The wireless communication device of claim 8 , wherein the primary signal splitting carrier aggregation architecture and the secondary signal splitting carrier aggregation architecture are in inter-band operation, wherein the second routing passes through a first signal splitting stage, and wherein the fourth routing passes through a second signal splitting stage.

10. The wireless communication device of claim 9 , wherein the first signal splitting stage routes a signal output from a first stage amplifier in a first band low noise amplifier of the first primary receiver to a second stage amplifier in a second band low noise amplifier of the first secondary receiver.

11. The wireless communication device of claim 9 , wherein the second signal splitting stage routes a signal output from a first stage amplifier in a first band low noise amplifier of the second primary receiver to a second stage amplifier in a second band low noise amplifier of the second secondary receiver.

12. The wireless communication device of claim 9 , wherein the first signal splitting stage routes a signal output from a second stage amplifier in a first band low noise amplifier of the first primary receiver to a mixer in the first secondary receiver.

13. The wireless communication device of claim 9 , wherein the second signal splitting stage routes a signal output from a second stage amplifier in a first band low noise amplifier of the second primary receiver to a mixer in the second secondary receiver.

14. The wireless communication device of claim 8 , wherein the primary signal splitting carrier aggregation architecture and the secondary signal splitting carrier aggregation architecture are in intra-band operation, wherein the second routing passes through a first signal splitting stage, and wherein the fourth routing passes through a second signal splitting stage.

15. The wireless communication device of claim 14 , wherein the first signal splitting stage splits a signal output from a first stage amplifier in a first band low noise amplifier of the first primary receiver, routes the signal to a second stage amplifier in the first band low noise amplifier of the first primary receiver and routes the signal to a second stage amplifier in a second band low noise amplifier of the first secondary receiver.

16. The wireless communication device of claim 14 , wherein the second signal splitting stage splits a signal output from a first stage amplifier in a first band low noise amplifier of the second primary receiver, routes the signal to a second stage amplifier in the first band low noise amplifier of the second primary receiver and routes the signal to a second stage amplifier in a second band low noise amplifier of the second secondary receiver.

17. The wireless communication device of claim 14 , wherein the first signal splitting stage splits a signal output from a second stage amplifier in a first band low noise amplifier of the first primary receiver, routes the signal to a first mixer of the first primary receiver and routes the signal to a second mixer of the second primary receiver.

18. The wireless communication device of claim 14 , wherein the second signal splitting stage splits a signal output from a second stage amplifier in a first band low noise amplifier of the second primary receiver, routes the signal to a first mixer of the second primary receiver and routes the signal to a second mixer of the second primary receiver.

19. A method for receiving a multiple carrier signal using a primary signal splitting carrier aggregation architecture and a secondary signal splitting carrier aggregation architecture, comprising:
receiving a first signal using a primary antenna;
routing the first signal through a first primary receiver on a transceiver chip in the primary signal splitting carrier aggregation architecture to obtain a first primary inphase/quadrature signal, wherein the transceiver chip is configured for both carrier aggregation operation and diversity/simultaneous hybrid dual receiver operation;
routing the first signal through a path within the first primary receiver to a first secondary receiver on the transceiver chip to obtain a first secondary inphase/quadrature signal;
receiving a second signal using a secondary antenna;
r

Assignees

• Gudem Prasad Srinivasa Siva
• Fernando Udara C
• Chang Li-Chung
• Qualcomm Inc

Inventors

• Gudem Prasad Srinivasa Siva
• Fernando Udara C
• Chang Li-Chung

Classifications

• H04B1/3805 Primary

  with built-in auxiliary receivers · CPC title

• H04B1/005

  adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges · CPC title