Modem, communications method of modem, and wireless charging method and device

• US 10,270,539 B2
• Filed: 05/27/2016
• Issued: 04/23/2019
• Est. Priority Date: 11/29/2013
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Li, Shanfu, Zhang, Kai, Zhou, Daiqi, Huo, Dawei, Huang, Kangmin
• Primary Examiner(s): Yu, Lihong
• Application Number:
  US15/167,567
• Publication Number:
  US 20160277124A1
• Time in Patent Office: 1,061 Days
• Field of Search: 375222
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00032 characterised by data exchange
• CPC Class Codes: H04B 10/808 Electrical power feeding of an optical transmission system
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision
• CPC Class Codes: H04M 19/08 with current supply sources at the substations generating ringing current H04M19/04
• CPC Class Codes: H04Q 11/0003 Details
• CPC Class Codes: H04Q 11/0067 Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
• CPC Class Codes: H04Q 11/0071 Provisions for the electrical-optical layer interface
• CPC Class Codes: H04Q 2011/0039 Electrical control
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

The present invention provides a communications method of a modem, including: determining a current power supply mode; if it is determined that the current power supply mode is that a network device is used to supply power by using a copper twisted pair, switching a communications interface from a fiber interface to an electrical interface, where the electrical interface connects to the network device by using the copper twisted pair and the fiber interface connects to a passive optical network by using an optical fiber. The present invention further provides a modem, and a wireless charging method and device. According to the technical solutions provided in the present invention, it is implemented that a service can still be provided after an external power supply is powered off.

Claims

1. A communications method implemented in a modem, the modem including a fiber interface configured to connect to a network via a direct connection to a passive optical network access device and an electrical interface configured to connect to the network via a direct connection to a network access device using a copper twisted pair, wherein the method comprises:

determining a current power supply mode of power supplied to the modem; and

when it is determined that the current power supply mode is that the network access device is used to supply power to the modem using the copper twisted pair, switching a communications interface of the modem from the fiber interface to the electrical interface, wherein the electrical interface directly connects to the network access device using the copper twisted pair and the fiber interface directly connects to the passive optical network access device using an optical fiber.

2. The method according to claim 1, wherein the method further comprises:

transmitting a data signal and/or a voice signal using the electrical interface.

3. The method according to claim 2, wherein the method further comprises:

communicating with a wireless communications network using an access device of the wireless communications network, so as to transmit the data signal or transmit the voice signal and the data signal.

4. The method according to claim 3, wherein the wireless communications network is a 2G network, a 3G network, or a 4G network.

5. The method according to claim 2, wherein the data signal comprises a data signal of a digital subscriber line (xDSL) and/or a data signal of the passive optical network.

6. The method according to claim 2, wherein the transmitting a data signal using the electrical interface comprises:

performing encapsulation processing on a digital signal using an asynchronous transfer mode (ATM) protocol and an ATM adaptation layer protocol; and

performing digital subscriber line (DSL) front end line driving, so as to transmit, to the network access device using the copper twisted pair, a data signal that is obtained after encapsulation processing.

7. The method according to claim 2, wherein the transmitting a voice signal using the electrical interface comprises:

modulating the voice signal to the copper twisted pair.

8. A modem, wherein the modem comprises:

a determining module, configured to determine a current power supply mode of power supplied to the modem;

a fiber interface, configured to connect to a network via a direct connection to a passive optical network access device using an optical fiber;

an electrical interface, configured to connect to the network via a direct connection to a network access device using a copper twisted pair; and

a processing module, configured to;

when the determining module determines that the current power supply mode is that the network access device is used to supply power to the modem using the copper twisted pair, switch a communications interface of the modem from the fiber interface to the electrical interface.

9. The modem according to claim 8, wherein the processing module is further configured to transmit a data signal and/or a voice signal using the electrical interface.

10. The modem according to claim 9, wherein the modem further comprises:

a wireless communications module, configured to communicate with a wireless communications network using an access device of the wireless communications network, so as to transmit the data signal or transmit the voice signal and the data signal.

11. The modem according to claim 10, wherein the wireless communications network is a 2G network, a 3G network, or a 4G network.

12. The modem according to claim 9, wherein the data signal comprises a data signal of a digital subscriber line xDSL and/or a data signal of a passive optical network.

13. The modem according to claim 9, wherein the electrical interface transmits the data signal, and the electrical interface further comprises:

a decision feedback equalization (DFE) module, configured to perform encapsulation processing on a digital signal using an asynchronous transfer mode (ATM) protocol and an ATM adaptation layer protocol; and

a semiconductor laser diode (LD) module, configured to perform digital subscriber line (DSL) front end line driving, so as to transmit, to the network access device using the copper twisted pair, a data signal that is obtained after encapsulation processing.

14. The modem according to claim 13, wherein the DFE module is integrated into the processing module.

15. The modem according to claim 13, wherein the electrical interface transmits the voice signal, and the electrical interface further comprises:

an active front end (AFE) module, configured to modulate the voice signal to the copper twisted pair.

16. The modem according to claim 8, wherein the fiber interface comprises an optical module, a serializer-deserializer (Ser-Des) interface, and a passive optical network (PON) media access control (MAC) interface;

and

the Ser-Des interface and the PON MAC interface are integrated into the processing module.