IP Library Granted Patent US 6,950,421
Granted Patent B2
US 6,950,421 · App. 10/022,147 · Granted Sep 27, 2005

Integration of remote microcell with CDMA infrastructure

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Quick Facts
Patent No.
US 6,950,421
App. No.
10/022,147
Granted
Sep 27, 2005
Kind
B2
Abstract

An integrated microcellular communication system and a CDMA communication system having signal advancing capabilities wherein a signal is advanced to compensated for the time delay induced by communication signal travel over a fiber optic connections between a base station cellsite and a remote microcell.

Claims (42)

1. A microcellular communication system integrated with a code division multiple access communications system comprising:

said microcellular communication system having at least one remote microcell;

said code division multiple access (CDMA) communications system comprising:

a base station in communication with said at least one remote microcell;

at least one in communication with said base station; and

signal advancing capability;

means for measuring a fiber length of optical fiber connections between said base station and said at least one remote microcell in said CDMA communications system;

means for measuring a loss in said fiber optic connections;

means for measuring remote power output of said at least one remote microcell;

means for calculating a value of an advance of a CDMA signal;

means for translating said value to a database for advancing said CDMA signal allowing said at least one remote microcell to communicate with said at least one face; and

means for setting output levels of said CDMA system from said value.

2. The integrated system as claimed in claim 1 further comprising means for testing said integrated system for proper operation.

3. The integrated system as claimed in claim 1 wherein said microcellular communications system further comprises a stand-alone microcellular communications system.

4. The integrated system as claimed in claim 3 further comprising hardware for interconnecting said at least one remote microcell and said at least one face.

5. The integrated system as claimed in claim 4 further comprising:

a combiner for each face to be integrated;

a meter connected to said CDMA system for measuring output power at said at least one face;

a transmit cable connected between each of said combiners;

a receive cable connected to each of said combiners;

a termination for each of said receive cables.

6. The integrated system as claimed in claim 1 wherein said microcellular communication system further comprises a simulcast microcellular communication system.

7. The integrated system as claimed in claim 6 further comprising hardware for interconnecting said at least one remote microcell-l and said at least one face.

8. The integrated system as claimed in claim 7 further comprising:

a transmit cable connected to each of said at least one faces;

a combiner connected to each of said transmit cables;

an interface module for said remote microcell wherein each of said transmit cables are connected to said interface module;

a receive cable connected between said interface module and said at least one face;

a combiner connected to said receive cable; and

an attenuator connected to said combiner and said receive cable.

9. The integrated system as claimed in claim 1 wherein said microcell communication system further comprises a transmit antenna and a receive antenna and said means for calculating an advance of said CDMA signal further comprises:

means for calculating propagation delay of said transmit antenna;

means for calculating propagation delay of said receive antenna;

means for selecting a lowest value of said propagation delay for both said transmit and said receive antennas;

means for recording said selected lowest values;

means for calculating a maximum differential of all delay calculations for said remote microcell;

means for calculating a sector size of said face;

means for calculating a search window size for said face being integrated with said remote microcell;

means for calculating an actual input analog composite power on said face being integrated with said remote microcell;

means for calculating a total gain for said at least one remote microcell; and

means for calculating an actual gain for said at least one remote microcell; and

means for calculating CDMA input power for said at least one remote microcell.