Radio transmission method and radio transmission

• US 6,728,231 B1
• Filed: 03/22/2000
• Issued: 04/27/2004
• Est. Priority Date: 03/24/1999
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kamo, Takanobu, Sugaya, Shigeru, Yoshida, Hidemasa
• Primary Examiner(s): Olms, Douglas
• Assistant Examiner(s): Pizarro, Ricardo M.
• Application Number:
  US09/533,082
• Time in Patent Office: 1,497 Days
• Field of Search: 370/336, 370/337, 370/338, 370/340, 370/341, 370/342, 370/347, 370/348, 370/442, 370/443, 370/444, 370/458, 370/459, 370/462, 455/507, 455/509, 455/516, 455/517, 455/524, 455/525, 340/825.08, 340/825.44
• US Class Current: 370/336
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A method for allowing a communication station to newly join an existing radio network constituted of plural units of communication stations includes a radio transmission a method for carrying out radio transmission in a radio network formed of plural communication stations by a control signal from a communication station set up as a central control station, including the steps of: specifying a frame cycle of a radio transmission signal by a control of the centrat control station; setting a predetermined position in the specified frame cycle as a slot for newly joining the radio network; and if a predetermined signal is transmitted through the slot, carrying out a processing for allowing a transmission source of the signal to join the radio network.

Claims

1. A radio transmission method for carrying out radio transmission in a radio network formed of plural communication stations by a control from a communication station set up as a central control station, the method comprising the steps of:

specifying a frame cycle of a radio transmission signal by a control signal from said central control station;

setting a predetermined position in the specified frame cycle as a slot for newly joining said radio network; and

when a predetermined signal is transmitted through said slot, carrying out a processing for allowing a transmission source of said predetermined signal to join said radio network,

wherein when said central control station detects transmission of the predetermined signal through said slot, said central control station sends information data inherent of said radio network to the transmission source of the signal.

2. The radio transmission method according to claim 1 wherein the communication station provided with said information data sends control information at a predetermined slot position in said frame cycle based on an instruction from said central control station.

3. A radio transmission method for carrying out radio transmission in a radio network formed of plural communication stations by a control from a communication station set up as a central control station, the method comprising the steps of:

specifying a frame cycle of a radio transmission signal by a control signal from said central control station;

setting a predetermined position in the specified frame cycle as a slot for newly joining said radio network; and

when a predetermined signal is transmitted through said slot, carrying out a processing for allowing a transmission source of said predetermined signal to join said radio network

wherein when a specific communication station in the radio network, except said central control station, detects transmission of the predetermined signal in said slot and said central control station cannot detect transmission of the predetermined signal in said slot, said specific communication station acts as a relay station and carries out a processing for making the communication station which is a transmission source of said predetermined signal join the radio network.

4. The radio transmission method according to claim 3 wherein when a plurality of said specific communication stations exists, a communication station whose communication with said transmission source of the predetermined signal is secured is selected as the relay station.

5. The radio transmission method according to claim 3 wherein the communication station acting as the relay station relays management information shared by the radio network to the communication station which is the transmission source of the predetermined signal.

6. A radio transmission apparatus for carrying out radio communication with other communication stations in a radio network, comprising:

communication processing means for transmitting and receiving a radio signal; and

control means for transmitting a signal for specifying a frame cycle with said communication processing means and, when reception of a specific signal is recognized at a predetermined slot position in the frame cycle, for carrying out a processing for making a transmission source of said specific signal join the radio network,

wherein when the control means recognizes the specific signal in the predetermined slot position, said control means provides the transmission source of said signal with inherent identification data and controls the communication processing means to send the identification data.

7. A transmission apparatus for carrying out radio communication with other communication stations in a radio network, comprising:

communication processing means for transmitting and receiving a radio signal; and

control means for transmitting a signal for specifying a frame cycle with said communication processing means and, when reception of the specific signal is recognized at a predetermined slot position in the frame cycle, for carrying out a processing for making a transmission source of said specific signal join the radio network,

wherein the control means controls the communication processing to send information for specifying a slot position to which the transmission source sends control information.

8. A radio transmission apparatus for carrying out radio communication with other communication stations in a radio network, comprising:

communication processing means for transmitting and receiving a radio signal; and

control means for transmitting a signal for specifying a frame cycle with said communication processing means and, when reception of the specific signal is recognized at a predetermined slot position in the frame cycle, for carrying out a processing for making a transmission source of said specific signal join the radio network,

wherein when the control means recognizes that there is a terminal which desires to join the radio network in discriminating control information received by the communication processing means with the predetermined signal not detected in the slot position, said control means controls said communication processing means to send instructing information to join the radio network and information about relay of information to said terminal to the transmission source of said control information.