Wireless internet network architecture for voice and data communications

• US 5,910,946 A
• Filed: 01/13/1997
• Issued: 06/08/1999
• Est. Priority Date: 01/13/1997
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Csapo, John S.
• Primary Examiner(s): VU, HUY DUY
• Application Number:
  US08/782,966
• Time in Patent Office: 876 Days
• Field of Search: 370/352, 370/353, 370/354, 370/355, 370/356, 370/310, 370/328, 370/329, 370/331, 370/338, 370/401, 370/400, 455/433, 455/435, 455/436, 455/437, 455/438, 455/439, 455/445, 455/466, 455/461, 455/561, 455/560, 375/242, 379/88.13, 379/88.17, 379/93.09, 379/93.11, 379/93.14, 379/93.15
• US Class Current: 370/328
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 7/0057 Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 88/16 Gateway arrangements
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

At least one base station is connected to at least one central office via a T1/E1 trunk. Some channels of the trunk are assigned to carry PCM data destined for the public switched telephony network via the central office, while other channels of the truck are assigned to carry packet data destined for the internet via the central office. The base station includes a wireless subscriber interface, a PCM interface, a packet data interface and a selector circuit which selectively couples an input/output of the subscriber interface to either one of an input/output of the PCM interface or an input/output of the packet data interface.

Claims

1. A communications network comprising:

at least one base station including (a) a subscriber interface which receives and transmits subscriber signals, (b) a PCM interface which receives and transmits pulse code modulation data, (c) a packet data interface which receives and transmits packet data, and (d) a selector circuit which selectively couples said subscriber interface to either one of said PCM interface and said packet data interface; and

at least one central office, operatively coupled to said PCM interface and said packet data interface of said at least one base station, which routes the pulse code modulation data received from said PCM interface of said at least one base station to a public switched telephony network, and pulse code modulation data received from the public switched telephony network to said PCM interface of said at least one base station, and which routes the packet data received from said packet data interface of said at least one base station to an internet gateway, and packet data received from the internet gateway to the packet data interface of said at least one base station.

2. A communications network as claimed in claim 1, wherein said subscriber interface is a wireless transceiver.

3. A communications network as claimed in claim 1, wherein said at least one base station and said at least one central office are connected via a multi-channel trunk, and wherein a first group of channels of said multi-channel trunk is assigned to carry the pulse code modulation data and a second group of channels of said multi-channel trunk is assigned to carry the packet data.

4. A communications network as claimed in claim 3, wherein said multi-channel trunk is a T1/E1 trunk.

5. A communications network as claimed in claim 4, wherein said subscriber interface is a wireless transceiver.

6. A communications network as claimed in claim 1, further comprising a subscriber location register which stores data indicative of respective subcriber locations, wherein said central office accesses said subscriber location register to identify one of plural different said base stations to which the pulse code modulation data and the packet data is to be routed.

7. A communications network as claimed in claim 5, further comprising a subscriber location register which stores data indicative of respective subcriber locations, wherein said central office accesses said subscriber location register to identify one of plural different said base stations to which the pulse code modulation data and the packet data is to be routed.

8. A communications network as claimed in claim 1, wherein said base station further includes an encoder which encodes the subscriber signals to obtain a subscriber encoded signal, and a PCM coder which is operatively coupled to said PCM interface and which converts the subscriber encoded signal to the pulse code modulation data, said selector circuit receiving the subscriber encoded signal and selectively applying the subscriber encoded signal to either one of said PCM coder and said packet data interface.

9. A communications network as claimed in claim 7, wherein said base station further includes an encoder which encodes the subscriber signals to obtain a subscriber encoded signal, and a PCM coder which is operatively coupled to said PCM interface and which converts the subscriber encoded signal to the pulse code modulation data, said selector circuit receiving the subscriber encoded signal and selectively applying the subscriber encoded signal to either one of said PCM coder and said packet data interface.

10. A communications network as claimed in claim 8, wherein said selector circuit receives a remote subscriber encoded signal from said packet interface, and wherein said at least one base station further comprises a control circuit which compares a signal quality of the subscriber encoded signal with a signal quality of the remote subscriber encoded signal, and which controls said selector circuit to output the remote subscriber encoded signal back to the packet data interface when the signal quality of the remote subscriber encoded signal is within predetermined acceptance parameters relative to the subscriber encoded signal received from said encoder.

11. A communications network as claimed in claim 9, wherein said selector circuit receives a remote subscriber encoded signal from said packet interface, and wherein said at least one base station further comprises a control circuit which compares a signal quality of the subscriber encoded signal with a signal quality of the remote subscriber encoded signal, and which controls said selector circuit to output the remote subscriber encoded signal back to the packet data interface when the signal quality of the remote subscriber encoded signal is within predetermined acceptance parameters relative to the subscriber encoded signal received from said encoder.

12. A base station for use in a communications network, the communications network including both the public switched telephony network and the internet network, said base station comprising:

a subscriber interface which receives and transmits subscriber signals;

a PCM interface which receives and transmits pulse code modulation data;

a packet data interface which receives and transmits packet data;

an encoder which encodes the subscriber signals to obtain a subscriber encoded signal;

a PCM coder which is operatively coupled to said PCM interface and which converts the subscriber encoded signal to the pulse code modulation data; and

a selector circuit which receives the subscriber encoded signal and selectively applies the subscriber encoded signal to either one of said PCM coder and said packet data interface.

13. A base station as claimed in claim 12, wherein said selector circuit receives a remote subscriber encoded signal from said packet data interface, and wherein said base station further comprises a control circuit which compares a signal quality of the subscriber encoded signal with a signal quality of the remote subscriber encoded signal, and which controls said selector circuit to output the remote subscriber encoded signal back to the packet data interface when the signal quality of the remote subscriber encoded signal is within predetermined acceptance parameters relative to the subscriber encoded signal received from said encoder.

14. A base station as claimed in claim 12, wherein said subscriber interface is a wireless transceiver.

15. A base station as claimed in claim 13, wherein said subscriber interface is a wireless transceiver.