Apparatus for radio local loop system

• US 5,802,177 A
• Filed: 09/30/1996
• Issued: 09/01/1998
• Est. Priority Date: 10/20/1995
• Status: Expired due to Fees

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Jones, William, Daniel, Elizabeth Mary, Martin, Anthony, Pulley, Douglas Roger, Gordon, Malcolm
• Primary Examiner(s): Tarcza, Thomas H.
• Assistant Examiner(s): Laufer, Pinchus M.
• Application Number:
  US08/722,690
• Time in Patent Office: 701 Days
• Field of Search: 455/403, 455/410, 455/411, 455/422, 455/462, 455/550, 455/560, 455/561, 380/49, 380/34
• US Class Current: 380/270
• CPC Class Codes: H04W 84/14 WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Abstract

Apparatus for a radio local loop for a telecommunications system, such as a base station (1) or a subscriber station (2), comprises a first unit (4, 13), which includes call processing and speech transcoding/encryption apparatus (8, 17), and which can be housed in a friendly environment, such as within a telephone exchange or within a subscriber'"'"'s premises, and a comparatively rugged second unit (3, 14) which includes a modem (11, 22) and radio transceiver (12, 23), and which can be housed, in the case of a base station, at a site remote from the exchange, but central for the subscribers which it is to serve, and in the case of a subscriber station on the outside of the subscriber'"'"'s premises. The first and second units are linked by a base-band link (5, 15).

Claims

1. A wireless line transceiver comprising:

a central access and transcoding unit comprising;

a call processing and speech transcoding/encryption apparatus, and

a first back haul interface connected to said call processing and speech transcoding/encryption apparatus; and

a central transceiver unit comprising;

a multiuser modem, and

a radio transceiver connected to said multiuser modem,

a second back haul interface connected to said multiuser modem; and

a base-band connection between said first back haul interface and said second back haul interface.

2. The apparatus of claim 1 wherein said central transceiver unit comprises a local exchange interface for connection to a local exchange.

3. The apparatus of claim 1 wherein said base-band connection comprises a plurality of timeslots and said multiuser modem maps each of said timeslots into a particular multiple access code.

4. A network interface unit comprising:

an intelligent telephone socket comprising;

a call processing and speech transcoding/encryption apparatus, and

a subscriber interface connected to said call processing and speech transcoding/encryption apparatus, and

a first serial interface connected to call processing and speech transcoding/encryption apparatus;

a subscriber transceiver unit comprising;

a modem,

a radio transceiver connected to said modem, and

a second serial interface connected to said modem; and

a base-band connection between said first serial interface and said second serial interface.

5. The apparatus of claim 4 wherein said subscriber interface provides an ISDN line to a subscriber apparatus.

6. The apparatus of claim 4 wherein said subscriber interface for connection to a subscriber apparatus provides two autonomous telephone lines.

7. The apparatus of claim 4 wherein said intelligent telephone socket comprises a power supply unit arranged to supply power to said subscriber transceiver unit via a low voltage connection.

8. The apparatus of claim 4 wherein said subscriber transceiver unit is adapted to be mounted outdoors.

9. The apparatus of claim 4 wherein said modem is a code division multiple access modem.