Digital radio communications apparatus
First Claim
1. Digital radio communications apparatus comprising:
- a base unit;
a local handset communicable with said base unit; and
a distant handset communicable with said base unit, wherein said local handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with a base unit as well as transmitting control channels for direct inter-handset communications in vacant slots in the receiving time zones for communications with said base unit; and
a basic controller for controlling the components of the local handset; and
said distant handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit as well as scanning control channels for direct inter-handset communications in the time zones other than the slots occupied by communications with said base unit; and
a basic controller for controlling the components of the distant handset.
1 Assignment
0 Petitions
Accused Products
Abstract
For the purpose of being capable of performing direct inter-handset communications while maintaining inter-handset communications via a base unit, smoothly making a transition from inter-handset communications via a base unit to direct inter-handset communications, and switching to inter-handset communications via a base unit without releasing the communications even in case direct inter-handset communications cannot be established, a local handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with a base unit as well as transmitting control channels for direct inter-handset communications in vacant slots in the receiving time zones for communications with the base unit, while a distant handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for scanning control channels for direct inter-handset communications in the time zones other than the slots occupied by communications with the base unit 100.
-
Citations
12 Claims
-
1. Digital radio communications apparatus comprising:
- a base unit;
a local handset communicable with said base unit; and
a distant handset communicable with said base unit,wherein said local handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with a base unit as well as transmitting control channels for direct inter-handset communications in vacant slots in the receiving time zones for communications with said base unit; and
a basic controller for controlling the components of the local handset; and
said distant handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit as well as scanning control channels for direct inter-handset communications in the time zones other than the slots occupied by communications with said base unit; and
a basic controller for controlling the components of the distant handset. - View Dependent Claims (2)
- a base unit;
-
3. Digital radio communications apparatus comprising:
- a base unit; and
a handset communicable with said base unit,wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit as well as determines whether to release or maintain communications with said base unit depending on the success or failure of establishment of direct inter-handset communications; and
a basic controller for controlling the components of the handset, andsaid direct inter-handset communications transition controller releases radio communications with said base unit in case direct inter-handset communications has been successfully established and maintains communications via said base unit in case direct inter-handset communications cannot be established. - View Dependent Claims (4)
- a base unit; and
-
5. Digital radio communications apparatus comprising:
- a base unit;
a local handset communicable with said base unit; and
a distant handset communicable with said base unit,wherein said base unit comprises;
a radio section for performing radio communications; and
a controller for controlling the components as well as communicating to the local handset the channels used by the distant handset as channels used by said distant handset and said base unit communicated from said distant handset, andsaid local handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit, determining whether to release or maintain communications with said base unit depending on the success or failure of establishment of direct inter-handset communications, requesting said base unit to communicate the channels used by said distant handset, and checking whether the channels transmitted from said distant handset to said base unit can be received in the channels used by said distant handset at a transition to direct inter-handset communications; and
a basic controller for controlling the components of the local handset.
- a base unit;
-
6. Digital radio communications apparatus comprising:
- a base unit;
a local handset communicable with said base unit; and
a distant handset communicable with said base unit,wherein said base unit comprises;
a radio section for performing radio communications; and
a controller for controlling the components as well as communicating to the local handset the channels used by the distant handset as channels used by said distant handset and said base unit communicated from said distant handset, andsaid local handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit, determining whether to release or maintain communications with said base unit depending on the success or failure of establishment of direct inter-handset communications, and communicating the channels used by said local handset requested; and
a basic controller for controlling the components of the local handset, andsaid distant handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit, determining whether to release or maintain communications with said base unit depending on the success or failure of establishment of direct inter-handset communications, and checking whether the channels transmitted from the distant handset to the base unit can be received at a transition to direct inter-handset communications; and
a basic controller for controlling the components of the distant handset.
- a base unit;
-
7. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with said base unit, determining whether to release or maintain communications with said base unit depending on the success or failure of establishment of direct inter-handset communications, requesting said base unit to communicate the channels used by a distant handset and said base unit, and checking whether the channels transmitted from the distant handset to said base unit can be received in said requested channels used; and
a basic controller 286 for controlling the components of the handset,said base unit comprises;
a radio section for performing radio communications; and
a controller for controlling the components of said base unit as well as communicating the channels used for communications with a distant handset in response to an inquiry from said local handset, andsaid direct inter-handset communications transition controller checks whether the channels transmitted from the distant handset to said base unit can be received at a transition to direct inter-handset communications.
- a base unit and handsets communicable with said base unit,
-
8. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
an attribute information storage section for storing a communications type provided by the local handset;
an attribute information transmitting section for communicating the communications type provided by the local handset to the distant handset as well as receiving the communications type provided by the distant handset;
a communications means determination section for determining whether to maintain inter-handset communications via said base unit or activate direct inter-handset communications based on the attribute information of the local handset and the attribute information of the distant handset; and
a basic controller for controlling the components of the handset, andsaid communications means determination section recognizes a communication type supported by the handsets and determines whether to make a transition to direct inter-handset communications or maintain inter-handset communications via said base unit based on said recognized communications type.
- a base unit and handsets communicable with said base unit,
-
9. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
an attribute information storage section for storing a communications type provided by a local handset;
an attribute information transmitting section for communicating the communications type provided by a local handset to a distant handset as well as receiving a communications type provided by the distant handset;
a communications means determination section for determining whether to maintain communications via said base unit or activate direct inter-handset communications based on the attribute information of the local handset and the attribute information of the distant handset; and
a basic controller for controlling the components of the handset as well as making control to transmit the attribute information of the local handset when transmitting a call request for an incoming call response,said base unit comprises;
a radio section for performing radio communications with said handsets; and
a controller for controlling the components of said base unit as well as transmitting attribute information received from one handset during inter-handset communications via said base unit to another handset, andsaid communications means determination section activates an available communications type based on the attribute information of the handset transmitted from said controller.
- a base unit and handsets communicable with said base unit,
-
10. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
an attribute information storage section for storing a communications type provided by a local handset;
an attribute information transmitting section for communicating the communications type provided by the local handset to a distant handset as well as receiving a communications type provided by the distant handset;
a communications means determination section for determining whether to maintain communications via said base unit or activate direct inter-handset communications based on the attribute information of the local handset and the attribute information of the distant handset; and
a basic controller for controlling the components of the handset as well as making control to transmit a Call Request message containing the communications type specified at call origination,said base unit comprises;
a radio section for performing radio communications with handsets; and
a controller for controlling the components of the base unit as well as transmitting in the content of broadcasting the communications type contained in the call request from a handset, andsaid communications means determination section activates communications according to the communications type transmitted in said broadcasting notice.
- a base unit and handsets communicable with said base unit,
-
11. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
an attribute information storage section for storing a communications type provided by a local handset;
an attribute information transmitting section for communicating the communications type provided by the local handset to a distant handset as well as receiving a communications type provided by the distant handset;
a communications means determination section for determining whether to maintain communications via said base unit or activate direct inter-handset communications based on the attribute information of the local handset and the attribute information of the distant handset; and
a basic controller for controlling the components of the handset as well as making control to transmit a Call Request message containing the specified communications type at a call request;
said base unit comprises;
a radio section for performing radio communications with handsets; and
a controller for controlling the components of the base unit as well as transmitting in the content of broadcasting the attribute information contained in the call request from a handset; and
said communications means determination section releases inter-handset communications via said base unit and activates direct inter-handset communications in case the local handset is a called handset.
- a base unit and handsets communicable with said base unit,
-
12. Digital radio communications apparatus comprising:
- a base unit and handsets communicable with said base unit,
wherein said handset comprises;
a radio section for performing radio communications;
a base unit communications controller for performing radio communications with said base unit;
a direct inter-handset communications controller for performing direct radio communications between handsets;
an attribute information storage section for storing a communications type provided by a local handset;
an attribute information transmitting section for communicating the communications type provided by the local handset to a distant handset as well as receiving a communications type provided by the distant handset;
a communications means determination section for determining whether to maintain communications via said base unit or activate direct inter-handset communications based on the attribute information of the local handset and the attribute information of the distant handset as well as determining whether an incoming call may terminate; and
a basic controller for controlling the components of the handset as well as making control to transmit the attribute information of the local handset at transmission of a call request in case the local handset is a called handset;
said base unit comprises;
a radio section for performing radio communications with handsets; and
a controller for controlling the components of the base unit as well as transmitting in the content of broadcasting the attribute information contained in the call request from a handset; and
said communications means determination section activates communications according to the communications type in said attribute information broadcast.
- a base unit and handsets communicable with said base unit,
Specification