US 5,710,980 AGranted

Cell site testing method for portable radio communication system

AssigneeNEC Corporation

InventorKeiichi Ueda

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Abstract

In response to a testing instruction from a PHSC, the cell range of CS 4a is expanded from a range indicated by a solid line to another range indicated by a broken line in which CS 4a can communicate with CSs 4b, 4g and 4f as well as other CSs not shown adjacent to CS 4a. Under the control of the PHSC, test calls are successively produced from CS 4a and transmitted to CSs 4b, 4g, 4f and all other adjacent CSs not shown to confirm the normality of connection. Then, in a similar manner as described above, the PHSC repeats this operation successively for all CSs and confirms the normality of the CSs from obtained results. When an abnormal condition is found out in a test result, the PHSC analogizes from a combination of test routes to specify the abnormal CS.

Claims2

Dependent claims

A cell site testing system for a portable radio communication system comprising a plurality of cell sites each of which is located at the center of individual cell range and performs radio communication with a portable radio terminal residing in the cell range of the cell site and allows communication between the portable radio terminal and another terminal of another communication network via a connection control equipment, wherein

each of said plurality of cell sites includes means for increasing the transmitting and receiving capacities in response to a testing instruction from said connection control equipment so that the cell range of the cell site may include adjacent ones of said cell sites, and means of transmitting a test call for producing and transmitting a test call, and
said connection control equipment performs collation between a received signal and a transmitted signal from and to an adjacent one of said plurality of cell sites, to which the testing instruction has been delivered, successively for all of said cell sites and performs determination between the normality and the abnormality of said cell sites based on obtained results of the collation.

Dependencies are inferred from the claim text.