Radio communication system selectable low speed bi-directional communication and high-speed down link communication

• US 5,802,469 A
• Filed: 03/28/1996
• Issued: 09/01/1998
• Est. Priority Date: 03/29/1995
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Sugawara, Tsutomu, Ogura, Koji, Moriya, Osamu, Kamagata, Eiji, Serizawa, Mutsumu, Wakutsu, Takashi, Nakajima, Nobuyasu, Kumaki, Yoshinari, Nounin, Katsuya
• Primary Examiner(s): Vo, Nguyen
• Assistant Examiner(s): Nguyen, Lee
• Application Number:
  US08/623,012
• Time in Patent Office: 887 Days
• Field of Search: 455/445, 455/422, 455/66, 455/454, 455/466, 455/434, 455/503, 455/435, 455/552, 455/553, 455/557, 455/403, 455/3.1, 455/3.2, 455/4.1, 455/4.2, 455/6.3, 455/5.1, 370/493, 370/338, 370/490, 370/494-495, 370/486, 375/200, 375/222, 348/16
• US Class Current: 455/422.1
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 52/0245 according to signal strength
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/16 Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A portable terminal includes a first store for storing a first physical address including a serial number of the terminal, a second store for storing a first logical address including a subscriber'"'"'s telephone number, a third store for storing a second physical address of a hardware used for computer communication, a fourth store for storing a second logical address corresponding to the second physical address, an interface for radio LAN, and an interface for PHS system. When a call is originated, a first channel is connected by using the first physical address and the first logical address. The second physical address and the second logical address are transmitted to the network from the call originator'"'"'s terminal through the first channel, thereby setting in a state enabling communication between computers, and necessary data is transmitted to the call originator'"'"'s terminal through a second channel by communication between computers.

Claims

1. A radio communication system, comprising:

a base station connected to a network; and

a radio terminal connected to the base station through a radio channel,

wherein said radio channel comprises a first channel making bi-directional communication, and a second channel making only down-link communication at higher speed than in the first channel, and

said radio terminal comprises a first interface for said first channel, a second interface for said second channel, and communication control means for setting the first channel by using said first interface, transmitting a protocol necessary for said second interface to the network through the first channel, and receiving data from the network through the second channel, and

wherein said first channel is a one-to-one telephone type channel,

said second channel is a one-to-multiplicity computer network type channel,

said first interface comprises a first physical address including a serial number of the terminal, and a first logical address including a subscriber'"'"'s telephone number, and

the protocol required in said second interface includes a second physical address which is a physical address of a hardware used for communication between computers, and a second logical address corresponding to the second physical address.

2. A system according to claim 1, wherein said communication control means comprises:

means for originating a call to a first base station for a first channel;

means for connecting the first channel to said first base station, using said first physical address and first logical address as identifiers;

means for transmitting said second physical address and second logical address to the network through said first channel;

means for making the network ready to connect the second channel; and

means for receiving the data from a second base station for a second channel connected to the network through the second channel.

3. A system according to claim 1, wherein said communication control means comprises:

means for connecting the first channel with a first base station for the first channel, when a call is originated from said first base station, using said first physical address and first logical address as identifiers;

means for transmitting said second physical address and second logical address to the network through said first channel;

means for making the network ready to connect the second channel; and

means for receiving data from a second base station for a second channel connected to the network through the second channel.

4. A system according to claim 1, wherein said communication control means comprises:

means for transmitting said second physical address and second logical address to the network through the first channel at a time of location registration; and

means for making the network ready to connect the second channel.

5. A system according to claim 1,

wherein said base station comprises:

means for storing the protocol necessary for said second interface and transmitted from said radio terminal for a specific period, and

means for transmitting a protocol request to said radio terminal when a communication request is transmitted from said radio terminal and if the protocol necessary for said second interface is not stored, and

wherein said communication control means transmits the protocol to the network if the protocol request is transmitted from said base station.

6. A communication method for a radio communication system comprising a base station connected to a network, and a radio terminal connected to said base station through a radio channel composed of a first channel for making bi-directional communication and a second channel for making only down-link communication at higher speed than the first channel, and having a first interface for said first channel and a second interface for said second channel, the method comprising the steps of:

connecting the first channel by using said first interface;

transmitting a protocol necessary for said second interface to the network through the first channel; and

receiving data from the network through the second channel, wherein

said first channel is a one-to-one telephone type channel,

said second channel is a one-to-multiplicity computer network type channel,

said first interface comprises a first physical address including a serial number of the terminal, and a first logical address including a subscriber'"'"'s telephone number, and

the protocol required for said second interface is a second physical address which is a physical address of a hardware used for communication between computers, and a second logical address corresponding to the second physical address.