EP0416872A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Antenna switching system
Assignee: Motorola Solutions Inc
•
Filing: 1990-09-04
•
Granted: —
•
Expires: 2010-09-04
Abstract
Abstract An antenna switching system for handling high traffic sectors in a cellular radiotelephone system. The system switches the cell's base station transmitters (210) to sectors that have more mobile traffic than they can handle. The additional transmitters (210) increase the number of frequencies in the overloaded sector, thereby allowing a greater amount of mobile traffic to use the cell.
Inventors
- 👤 John M. Smith
- 👤 Joseph J. Schuler
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 02:26
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/08; H01; H01Q; H01Q3/00; H01Q3/24; H01Q3/247
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
An antenna switching system, CHARACTERIZED BY: a) at least one signal transmission source (210) for generating at least one radio frequency signal; b) means (201 and 203), coupled to the at least one signal transmission source (201), for switching the at least one radio frequency signal; c) radio frequency combining means (204), having an input and an output, for combining at least one signal from the means for switching (201 and 203), the input of the radio frequency combining means (204) coupled to the means for switching (201 and 203); d) amplification means (205) having an input and an output, the input of the amplification means (205) coupled to the output of the radio frequency combining means (204); and e) at least one antenna (220) coupled to the output of the amplification means (205).
Claim 2
Dependent Claim
134 words
An antenna switching system, CHARACTERIZED BY: a) at least one signal transmission source (210) for generating at least one radio frequency signal; b) means (201 and 203), coupled to the at least one signal transmission source (201), for switching the at least one radio frequency signal; c) radio frequency combining means (204), having an input and an output, for combining at least one signal from the means for switching (201 and 203), the input of the radio frequency combining means (204) coupled to the means for switching (201 and 203); d) amplification means (205) having an input and an output, the input of the amplification means (205) coupled to the output of the radio frequency combining means (204); and e) at least one antenna (220) coupled to the output of the amplification means (205).
Claim 3
Dependent Claim
28 words
The antenna switching system of claim 1 wherein the means for switching is at least one switch matric (203) coupled to at least one odd/even sector switch (201).
Claim 4
Dependent Claim
28 words
The antenna switching system of claim 1 wherein the means for switching (201 and 203) routes a signal from a first antenna (220) to a second antenna (220).
Claim 5
Dependent Claim
25 words
The antenna switching system of claim 1 wherein a first antenna (220) is isolated from a second antenna (220) by the means for switching (203)
Claim 6
Dependent Claim
22 words
The antenna switching system of any one of claims 1 to 4 wherein the means for combining (204) is a broadband combiner.
Claim 7
Dependent Claim
29 words
The antenna switching system of claim 5, wherein the broadband combiner can combine signals in the ranges of 824.01 MHz to 848.97 MHz and 869.01 MHz to 893.97 MHz.
Claim 8
Dependent Claim
22 words
The antenna switching system of any one of claims 1 to 6 wherein the amplification means (205) is a linear power amplifier.
Claim 9
Dependent Claim
222 words
A dynamic frequency allocation system for allocating frequencies between sector antennas of a base station having a plurality of odd and even sector antennas, each odd sector antenna coupled to an odd sector switch matrix and each even sector antenna coupled to an even sector switch matrix, the odd and even switch matrices each having a plurality of inputs and outputs, the dynamic frequency allocation system CHARACTERIZED BY: a) at least one signal transmission source (210); b) sector switching means (201), coupled to a first signal transmission source (210), for routing a signal from the first signal transmission source (210) to a first input of the odd switch matrix (203) or a first input of the even switch matrix (203); c) a plurality of radio frequency signal combining means (204), each having an input and an output, the input of a first radio frequency signal combining means (204) coupled to a first output of the odd or even switch matrix (203); d) a plurality of linear power amplification means (205), each having an input and an output, the input of a first linear power amplification means (205) coupled to a first output of the radio frequency signal combining means (204); and e) a first one of the sector antennas (220) coupled to a first output of the linear power amplification means (205).
Claim 10
Dependent Claim
222 words
A dynamic frequency allocation system for allocating frequencies between sector antennas of a base station having a plurality of odd and even sector antennas, each odd sector antenna coupled to an odd sector switch matrix and each even sector antenna coupled to an even sector switch matrix, the odd and even switch matrices each having a plurality of inputs and outputs, the dynamic frequency allocation system CHARACTERIZED BY: a) at least one signal transmission source (210); b) sector switching means (201), coupled to a first signal transmission source (210), for routing a signal from the first signal transmission source (210) to a first input of the odd switch matrix (203) or a first input of the even switch matrix (203); c) a plurality of radio frequency signal combining means (204), each having an input and an output, the input of a first radio frequency signal combining means (204) coupled to a first output of the odd or even switch matrix (203); d) a plurality of linear power amplification means (205), each having an input and an output, the input of a first linear power amplification means (205) coupled to a first output of the radio frequency signal combining means (204); and e) a first one of the sector antennas (220) coupled to a first output of the linear power amplification means (205).
Claim 11
Independent Claim
127 words
A method for dynamic channel allocation for allocating channels, for communicating with traffic, between sector antennas of a base station having a plurality of odd and even sector antennas, each odd sector antenna coupled to an odd sector switch matrix and each even sector antenna coupled to an even sector switch matric, the odd and even switch matrices each having a plurality of inputs and outputs, the method CHARACTERIZED BY the steps of: a) switching a first channel, in response to increased traffic in a first even sector, from the odd sector switch matrix (203) to the even sector switch matrix (203); b) the even sector switch matrix (203) switching the first channel between a plurality of means for combining channels (204); c) amplifying the first channel.
Claim 12
Independent Claim
127 words
A method for dynamic channel allocation for allocating channels, for communicating with traffic, between sector antennas of a base station having a plurality of odd and even sector antennas, each odd sector antenna coupled to an odd sector switch matrix and each even sector antenna coupled to an even sector switch matric, the odd and even switch matrices each having a plurality of inputs and outputs, the method CHARACTERIZED BY the steps of: a) switching a first channel, in response to increased traffic in a first even sector, from the odd sector switch matrix (203) to the even sector switch matrix (203); b) the even sector switch matrix (203) switching the first channel between a plurality of means for combining channels (204); c) amplifying the first channel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.