Method and apparatus for adapting non-cellular private radio systems to be compatible with cellular mobile phones
First Claim
1. A method for enabling a private radio system to be compatible with a mobile terminal used in a mobile network, said method comprising the steps of:
- adapting an air interface of the private radio system to be compatible with an air interface of the mobile network, said step of adapting including;
generating within the private radio system a first control channel including a frequency correction channel incorporating frequency control information and a synchronization channel incorporating timing control information; and
configuring said frequency control information and said timing control information in accordance with a format defined by a protocol of the air interface associated with the mobile network;
transmitting the first control channel from a base station of the private radio system to the mobile terminal;
determining, in response to receiving the transmitted first control channel, if the base station is authorized for use by the mobile terminal; and
enabling the mobile terminal to operate in a cordless mode with said base station, if so authorized.
2 Assignments
0 Petitions
Accused Products
Abstract
The air interface of a private radio system is adapted to be compatible with the air interface of a cellular mobile network. The private radio system'"'"'s beacon channel includes a dual-burst type of frequency correction channel and synchronization channel. The burst formats of these two channels are defined according to the frequency correction channel and synchronization channel burst formats used in the cellular mobile network. An information message carried in the private synchronization channel includes status and identity information related to the private radio system. An access request channel is defined for the private radio system, which enables a mobile terminal to request access to the private radio system. The protocol of the private radio system'"'"'s access request channel (in the uplink) is similar to the protocol of the cellular network'"'"'s access grant channel used in the downlink. Alternatively, the protocol of the cellular network'"'"'s synchronization channel in the downlink can be used for the private radio system'"'"'s access request channel (in the uplink). Consequently, the mobile terminal can be used as a private cordless phone.
-
Citations
21 Claims
-
1. A method for enabling a private radio system to be compatible with a mobile terminal used in a mobile network, said method comprising the steps of:
-
adapting an air interface of the private radio system to be compatible with an air interface of the mobile network, said step of adapting including; generating within the private radio system a first control channel including a frequency correction channel incorporating frequency control information and a synchronization channel incorporating timing control information; and configuring said frequency control information and said timing control information in accordance with a format defined by a protocol of the air interface associated with the mobile network; transmitting the first control channel from a base station of the private radio system to the mobile terminal; determining, in response to receiving the transmitted first control channel, if the base station is authorized for use by the mobile terminal; and enabling the mobile terminal to operate in a cordless mode with said base station, if so authorized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for enabling a user within a mobile network to communication with a private radio system, said system comprising:
-
a base station, associated with said private radio system, operable to generate a beacon channel including a frequency correction channel incorporating frequency control information and a synchronization channel incorporating timing control information, said base station operable to configure and transmit said frequency control information and said timing control information in accordance with a format defined by a protocol of an air interface associated with the mobile network; a mobile terminal, in response to receiving the transmitted beacon channel, operable to determine if the base station is authorized for use by said mobile terminal and, if so authorized, said mobile terminal is configured to operate in a cordless mode with said base station. - View Dependent Claims (13, 14, 15, 16)
-
-
17. A private radio system for enabling a user within a mobile network to communicate by way of a mobile terminal through said private radio system, said private radio system comprising:
-
a base station including means for generating a beacon channel including a frequency correction channel incorporating frequency control information and a synchronization channel incorporating timing control information; means, coupled to said means for generating, for configuring said frequency control information and said timing control information in accordance with a format defined by a protocol of an air interface associated with the mobile network; and means, coupled to said means for configuring, for transmitting said beacon channel to said mobile terminal that determines if use of the base station has been authorized. - View Dependent Claims (18, 19, 20, 21)
-
Specification