US PATENT SUBCLASS 455 / 449
.~.~.~ Hierarchical cell structure

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

403  DF  RADIOTELEPHONE SYSTEM {12}
422  DF  .~ Zoned or cellular telephone system {14}
446  DF  .~.~ Including cell planning or layout {3}
449.~.~.~ Hierarchical cell structure

DEFINITION

Classification: 455/449

Hierarchical cell structure:

(under subclass 446) Subject matter wherein the radiotelephone system contains a site having cells organized into ranks, each subordinate to the one above it (e.g., pico, micro, and macro cells, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

444, for handoff between macro and micro cells.