Method and apparatus for multi-protocol reverse channel infrastructure sharing

• US 6,173,189 B1
• Filed: 12/18/1998
• Issued: 01/09/2001
• Est. Priority Date: 12/18/1998
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Lockhart, Thomas Wayne
• Primary Examiner(s): Eisenzopf, Reinhard J.
• Assistant Examiner(s): NGUYEN, DUC M
• Application Number:
  US09/215,813
• Time in Patent Office: 753 Days
• Field of Search: 455/561, 455/560, 455/552, 455/553, 455/450, 455/38.1, 455/424, 455/426, 370/433, 370/468, 370/469
• US Class Current: 455/561
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A base station (222) capable of receiving reverse channel data using two over the air protocols preferably comprises a transmitter (224) and modulator (226) for forward channel transmissions in at least a first protocol, a multi-mode base receiver (228) capable of receiving data on a reverse channel using multiple protocols including the first protocol and at least a second protocol. The dual mode base station further comprises a processor (242) that receives a timing source for the second over the air protocol derived from the remote controller (216) for the second over the air protocol. The processor is preferably programmed to decode timing information from the timing source allowing the multi-mode base receiver 228 to provide a busy indicator to the transmitter 224 and modulator 226 to inhibit the reverse channel of the first over the air protocol during a period set by the busy indicator.

Claims

1. A base station in a radio communication system capable of receiving reverse channel data using two over the air protocols, comprising:

a transmitter and modulator for forward channel transmissions in at least a first over the air protocol;

a multi-mode base receiver capable of receiving data on a reverse channel using multiple over the air protocols including the first protocol and at least a second over the air protocol;

a timing source for the second over the air protocol derived from a remote controller for the second over the air protocol;

a processor programmed to;

decode timing information from the timing source for the second over the air protocol allowing the multi-mode base receiver to provide a busy indicator to the transmitter and modulator corresponding to the first over the air protocol;

inhibit the reverse channel of the first over the air protocol during a period set by the busy indicator;

configure the reverse channel to receive data in the second over the air protocol at the multi-mode base receiver capable of receiving data on a reverse channel in one of a plurality of protocols;

demodulate and decode the reverse channel in the second over the air protocol for a period indicated by the timing information; and

configure the reverse channel to receive data in the first over the air protocol after the time indicated by the timing information.

2. The base station of claim 1, wherein the multi-mode base receiver is capable of receiving data on the reverse channel using RD-LAP as the first protocol and ReFLEX as the second protocol.

3. The base station of claim 2, wherein the timing source for ReFLEX comes from remote controller for ReFLEX.

4. The base station of claim 3, wherein the timing source for ReFLEX comes from a remote controller for ReFLEX via a remote controller for RD-LAP.

5. The base station of claim 2, wherein the timing source for ReFLEX comes from a remote controller for ReFLEX through a separate ReFLEX forward channel receiver.

6. The base station of claim 1, wherein the base station further comprises a demultiplexer for demultiplexing forward channel data of the first over the air protocol and timing information from the remote controller for at least the second protocol through the remote controller for at least the first over the air protocol.

7. The base station of claim 1, wherein the base station further comprises a multiplexer for multiplexing information for at least the second protocol and for the first protocol received through the multi-mode base receiver.

8. A base station in a radio communication system capable of receiving reverse channel data using multiple over the air protocols, comprising:

a transmitter and modulator for outbound transmissions in at least a first over the air protocol;

a multi-mode base receiver capable of receiving data on a reverse channel using multiple over the air protocols including the first over the air protocol and at least a second over the air protocol;

a timing source for at least one of the multiple over the air protocols derived from at least one remote controller respectively corresponding to at least one of the multiple over the air protocols;

a processor programmed to;

decode timing information from the timing source for at least one of the multiple over the air protocols allowing the multi-mode base receiver to provide busy indicator to at least a modulator corresponding to a remainder of the plurality of over the air protocols;

inhibit the remainder of the plurality of over the air protocols during period set by the busy indicator;

configure the reverse channel to receive data in the at least one of th multiple over the air protocols having the timing source at the multi-mode base receiver capable of receiving data on a reverse channel in one of a plurality of protocols;

demodulate and decode the reverse channel in the at least one of the multiple over the air protocols having the timing source for a period indicated by timing information; and

configure the reverse channel to receive data in one of the remainder of the plurality of protocols after the time indicated by the timing information.

9. The base station of claim 8, wherein the multi-mode base receiver is capable of receiving data on the reverse channel using RD-LAP as the first protocol and ReFLEX as the second protocol.

10. The base station of claim 9, wherein the timing source for ReFLEX comes from a remote controller for ReFLEX.

11. The base station of claim 9, wherein the timing source for ReFLEX comes from a remote controller for ReFLEX via a remote controller for RD-LAP.

12. The base station of claim 9, wherein the timing source for ReFLEX comes from a remote controller for ReFLEX through a separate ReFLEX forward channel receiver.

13. The base station of claim 8, wherein the base station further comprises a demultiplexer for demultiplexing forward channel data of the first over the air protocol and timing information from the remote controller for at least the second over the air protocol through the remote controller for at least the first over the air protocol.

14. The base station of claim 8, wherein the base station further comprises a multiplexer for multiplexing information for at least the second protocol and for the first protocol received through the multi-mode base receiver.

15. A method for receiving reverse channel data using a plurality protocols, comprising the steps of:

decoding timing information for a first protocol allowing a multi-mode base receiver to provide a busy indicator to at least a modulator corresponding to a remainder of the plurality of protocols;

inhibiting the remainder of the plurality of protocols during a period set by the busy indicator;

configuring the reverse channel to receive data in the first protocol at a multi-mode base receiver capable of receiving data on a reverse channel in one of the plurality of protocols;

demodulating and decoding the reverse channel in the first protocol for a period indicated by the timing information; and

configuring the reverse channel to receive data in one of the remainder of the plurality of protocols after the period indicated by the timing information.

16. The method of claim 15, wherein the method further comprises the step of demodulating and decoding the reverse channel in the one of the remainder of the plurality of protocols as indicated by the timing information.

17. The method of claim 15, wherein the method further comprises the step of clearing the busy indicator after processing information received using the first protocol as further indicated by the timing information.

18. The method of claim 15, wherein the step of inhibiting the remainder of the plurality of protocols further comprises the step of aborting reception of any reverse channel message which may be in progress operating on the remainder of the protocols.

19. The method of claim 15, wherein the step of configuring comprises the step of retuning to a given frequency.

20. The method of claim 15, wherein the step of configuring comprises the step of adjusting filters.