Signal receiving method and electronic device

• US 9,590,717 B2
• Filed: 10/22/2014
• Issued: 03/07/2017
• Est. Priority Date: 10/22/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Young-Ju
• Primary Examiner(s): TIEU, JANICE N
• Application Number:
  US14/520,949
• Publication Number:
  US 20150110229A1
• Time in Patent Office: 867 Days
• Field of Search: 375/260, 375/267, 375/375
• US Class Current: 1/1
• CPC Class Codes: H04B 1/006 using switches for selecting the desired band H04B1/0057 takes precedence
• CPC Class Codes: H04B 1/1027 assessing signal quality or detecting noise/interference for the received signal
• CPC Class Codes: H04B 1/123 using adaptive balancing or compensation means adaptive filter circuits and algorithms H03H
• CPC Class Codes: H04B 3/32 Reducing cross-talk, e.g. by compensating
• CPC Class Codes: H04B 7/082 selecting best antenna path
• CPC Class Codes: H04L 1/0618 Space-time coding
• CPC Class Codes: H04L 25/03057 with a recursive structure H04L25/03031 takes precedence
• CPC Class Codes: H04L 25/03343 Arrangements at the transmitter end
• CPC Class Codes: H04L 25/03821 Inter-carrier interference cancellation [ICI]
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence

Abstract

An electronic device including a first transceiver configured to process a first carrier, a second transceiver configured to process a second carrier, a switch, a baseband processor configured to process a first baseband signal and a second baseband signal, which are processed respectively by the first transceiver and the second transceiver, an antenna connected through the switch in association with some of a plurality of reception paths with respect to the first carrier, and a reception path configured to provide the second transceiver with the first carrier received via the antenna connected through the switch to the second transceiver.

Claims

1. An electronic device comprising:

a plurality of antennas;

a first transceiver configured to connect to each of the plurality of antennas;

a second transceiver configured to connect to each of the plurality of antennas; and

a baseband processor configured to process baseband signals, which are processed respectively by the first transceiver and the second transceiver, in one of a carrier aggregation (CA) mode and a non-CA mode,

wherein the baseband processor comprises a first baseband processing module and a second baseband processing module,

wherein when operating in the CA mode;

a first carrier and a second carrier is received through the plurality of antennas,

the first transceiver processes the first carrier, and sends the processed first carrier to the first baseband processing module,

the first baseband processing module processes a first baseband signal which is processed by the first transceiver,

the second transceiver processes the second carrier, and sends the processed second carrier to the second baseband processing module,

the second baseband processing module processes a second baseband signal which is processed by the second transceiver, and

the baseband processor aggregates the first baseband signal and the second baseband signal, and

wherein when operating in the non-CA mode;

the first carrier is received through the plurality of antennas,

the first transceiver and the second transceiver process the received first carrier, respectively,

the second baseband processing module sends a third baseband signal which is processed by the second transceiver to the first baseband processing module, and

the first baseband processing module combines a fourth baseband signal which is processed by the first transceiver and the third baseband signal.

2. The electronic device of claim 1, wherein the second baseband processing module sends the third baseband signal to the first baseband processing module through internal routing.

3. The electronic device of claim 1,

wherein when operating in the non-CA mode:

the second carrier is received through the plurality of antennas;

the first transceiver and the second transceiver process the received second carrier, respectively;

the first baseband processing module sends a fifth baseband signal which is processed by the first transceiver to the second baseband processing module; and

the second baseband processing module combines a sixth baseband signal which is processed by the second transceiver and the fifth baseband signal.

4. The electronic device of claim 1, further comprising a switch configured to connect the plurality of antennas to the first transceiver and the second transceiver and to provide a plurality of reception paths from the plurality of antennas to the first transceiver and the second transceiver.

5. The electronic device of claim 4, wherein when operating in the non-CA mode, the plurality of reception paths comprises a reception path configured to provide the second transceiver with the first carrier received via the plurality of antennas through the switch, and

wherein the reception path includes a band-pass filter configured to filter a frequency band of the first carrier.

6. The electronic device of claim 1, wherein when operating in the non-CA mode, the first baseband processing module selects some signals to be combined on the basis of signal quality from at least one first baseband signal processed by the first transceiver and a signal of the first carrier processed by the second transceiver.

7. The electronic device of claim 1, further comprising a controller configured to select, when operating in the non-CA mode, an antenna configured to receive a signal of the first carrier to be provided to the second transceiver of the plurality of antennas.

8. The electronic device of claim 7, wherein when operating in the non-CA mode, the controller changes the antenna configured to receive the signal of the first carrier according to whether a reception capability is improved.

9. A method of controlling an electronic device, the method comprising:

receiving at least one carrier through a plurality of antennas;

processing the carrier by a first transceiver and a second transceiver; and

processing baseband signals of the carrier, which are processed by the first transceiver and the second transceiver, in one of a carrier aggregation (CA) mode and a non-CA mode;

wherein the processing of the carrier comprises;

when operating in the CA mode receiving a first carrier and a second carrier through the plurality of antennas, processing the first carrier to a first baseband signal by the first transceiver, processing the second carrier to a second baseband signal by the second transceiver, aggregating the first baseband signal and the second baseband signal, and

when operating in the non-CA mode receiving a first carrier through the plurality of antennas, processing the first carrier to a third baseband signal by the first transceiver, processing the first carrier to a fourth baseband signal by the second transceiver, and combining, by a baseband processor, the third baseband signal and the fourth baseband signal.

10. The method of claim 9, wherein the baseband processor comprises a first baseband processing module and a second processing module, and

wherein the combining the third baseband signal and the fourth baseband signals comprises:

the second baseband processing module sending the third baseband signal to the first baseband processing module through internal routing, and combining, by the first baseband processing module, the third baseband signal and the fourth baseband signal.

11. The method of claim 9, further comprising:

when operating in the non-CA mode receiving the second carrier through the plurality of antennas;

processing, by the first transceiver and the second transceiver, the received second carrier to a fifth baseband signal and a sixth baseband signal, respectively; and

combining the fifth baseband signal and the sixth baseband signal.

12. The method of claim 9, wherein the electronic device comprises a switch configured to connect the plurality of antennas to the first transceiver and the second transceiver and to provide a plurality of reception paths from the plurality of antennas to the first transceiver and the second transceiver, and

wherein the plurality of reception paths comprises a reception path configured to provide the second transceiver with the first carrier received via the plurality of antennas through the switch.

13. The method of claim 9, wherein when operating in the non-CA mode, the reception path includes a band-pass filter configured to filter a frequency band of the first carrier.

14. The method of claim 9, further comprising when operating in the non-CA mode changing an antenna configured to receive a signal of the first carrier according to whether a reception capability is improved.