JP2002064501A - Wireless transmission control method, wireless transmission control device, and wireless transmission apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless transmission control method by which the presence of transmission apparatus in a network can be confirmed even in a sleep mode and to provide a wireless transmission control device and a wireless transmission apparatus. SOLUTION: A concerned communication station in the sleep mode transmits SSP(Station SYNC Packet) information sets 74, 76 for a prescribed transmission period 71 according to the wireless transmission control method of this invention so that other communication station can easily recognize that the concerned control station in the sleep mode is disconnected form the network. Thus, information communication can be efficiently controlled. Furthermore, the concerned station can be restored to a usual mode in a shorter time by receiving SSP information 75 during its intermittent operation for an SSP period 72 to exchange the same information in the usual mode with the other communication station.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio transmission control method and a radio transmission control method suitable for application to, for example, transmitting a radio signal to various devices to form a local area network (LAN) between a plurality of devices. The present invention relates to a transmission control device and a wireless transmission device.

[0002]

2. Description of the Related Art Conventionally, in a communication system such as a cellular phone, for example, only an intermittent reception cycle is specified in an intermittent reception mode, and information transmission is performed in accordance with a request from a corresponding transmission device. Has been used to notify a base station of a network of a transmission request.

[0003] In this method, since the management of the moving terminal device is performed relatively roughly, the power consumption of the mobile device can be reduced by defining only the intermittent reception cycle as described above. Could be obtained.

[0004] Further, as a so-called sleep mode indicating a sleep state in a conventional radio communication system, a method of generally defining a cycle of intermittent transmission and reception and not transmitting and receiving information over the period of the cycle is assumed. I was

[0005] Therefore, the above-described method has an advantage that the operation of the transmission device can be partially stopped during the intermittent transmission / reception period, so that the power consumption of the transmission device can be reduced. was there.

[0006]

In the above-described setting of only the intermittent reception cycle in the conventional communication system such as a cellular phone, if the power of the mobile device is turned off, the power is turned off in the corresponding network. However, there is a disadvantage that it is not possible to detect that the performed mobile station no longer exists.

That is, in a communication system such as a mobile phone, a call is simultaneously made to mobile stations registered in a predetermined location registration area. Because it was a mechanism that can detect that the power was turned off, if this was applied to a small network, the system would continue to operate without knowing the existence of the mobile station, and the system There was an inconvenience that the management quality of operation deteriorated.

[0008] Further, in a network system such as a cellular phone, reduction of power consumption in a mobile station is mainly considered, so that it is difficult to reduce power consumption in the entire network.

In the conventional definition of the intermittent transmission / reception cycle, the transmission cycle and the reception cycle are generally defined at the same time, and the parameters are determined on the basis of the cycle in which reception must be performed. Since the parameter of the transmission cycle is determined by the reception cycle, a flexible transmission cycle cannot be set, and the effect of reducing the power consumption of the transmission device is disadvantageously reduced. .

In view of the above, the present invention has been made in view of the above circumstances, and a wireless transmission control method and a wireless transmission control method capable of confirming a transmission device existing in a network even in a sleep mode. It is an object to provide a control device and a wireless transmission device.

[0011]

Here, a radio transmission control method according to the present invention comprises a radio transmission system for configuring a radio network using a plurality of transmission devices as communication stations and executing transmission control of the radio network. In the control method, a predetermined frame period is provided, and predetermined information exchange is performed intermittently for transmission control in a transmission device serving as a communication station at a period that is an integral multiple of the frame period.

[0012] Accordingly, in order to confirm the transmission device existing in the network, even in the case of the transmission device in which the sleep mode is defined, the predetermined information transmission is performed at a constant period, so that the transmission device can be transmitted at a constant period. , Predetermined information can be exchanged between the control station and the communication station which is the terminal station.

[0013] Further, the communication station in the sleep mode receives information over a plurality of frames in order to transmit the uplink management information, so that the same information maintenance as in the normal operation mode can be performed.

Further, the wireless transmission control apparatus of the present invention intermittently transmits information from a transmission apparatus serving as a control station of a wireless network to a corresponding communication station in a sleep mode, and the first communication station receives the information. A period is set, and a second period for intermittently transmitting information from the communication station in the sleep mode to the control station is set.

[0015] Thus, the first cycle for receiving the downlink management information and the second cycle for transmitting the uplink management information are defined as a cycle in which the communication station in the sleep mode starts intermittently. Thus, the reception or transmission of information can be performed periodically at different timings.

Further, the radio transmission control apparatus according to the present invention requires the control station to start the communication station in the sleep mode in the first cycle in which the communication station receives the downlink management information. The notification of the predetermined activation information is performed in response to the request.

[0017] Thus, the control station transmits information to the corresponding communication station at a fixed period, and easily recovers the corresponding communication station from the sleep mode by using the same method as a normal network management procedure. can do.

Further, in the radio transmission control method of the present invention, in order to release the sleep mode from a communication station in the sleep mode, the control station uses the station synchronization section existing in the first cycle. A request to cancel the sleep mode is issued.

Accordingly, the communication station can set the first intermittent reception cycle in conjunction with the cycle at which the sleep mode release instruction is transmitted from the control station.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a radio transmission control method according to the present embodiment, when a communication station in a sleep mode performs an intermittent operation at a predetermined cycle, the communication station performs reception and control at a first cycle. The presence or absence of an activation request from the station is confirmed, and the corresponding communication station transmits information in the second cycle to notify the control station that the communication station is present in the network.

The present embodiment will be described below. FIG. 1 is a diagram illustrating a configuration example of a network system to which the wireless transmission control method according to the present embodiment is applied. For example, as shown in FIG. 1, a personal computer 1 and a printer output device 2 are connected to the wireless transmission device 11 via a cable or the like by wire. A VTR (video tape recorder) 3 is similarly connected to the wireless transmission device 12 via a cable or the like. Similarly, the telephone device 5 and the set-top box 4 are connected to the wireless transmission device 13 via a cable or the like. Similarly, the television receiver 6 and the game device 7 are connected to the wireless transmission device 14 via a cable or the like by wire. In this way, each device is connected to each wireless transmission device, and each wireless transmission device forms a network 15.

Here, for the sake of convenience, the personal computer 1 becomes the owner of the isochronous transmission, notifies a predetermined desired quality via the wireless transmission device 11, the set-top box 4 becomes the talker of the isochronous transmission, and Send information via VT
R3 is a listener for isochronous transmission, receives information via the wireless transmission device 12, and performs predetermined band reservation transmission from the wireless transmission device 13 to the wireless transmission device 12.

The wireless transmission device 11 serving as a control station of the network 15 manages these bandwidth reservation transmissions.

FIG. 2 shows a configuration example of the radio transmission devices 11 to 14 constituting each communication station. Here, each of the wireless transmission devices 11 to 14 basically has a common configuration, and includes an antenna 21 that performs transmission and reception, and a wireless transmission and reception processing unit 22 that is connected to the antenna 21 and performs wireless transmission processing and wireless reception processing. And wireless transmission with other transmission devices is possible.

In this case, as a transmission system in which transmission and reception are performed by the radio transmission / reception processing unit 22 of this embodiment, for example, O
FDM (Orthogonal Frequency)
A transmission method using a multicarrier signal called a Division Multiplex (orthogonal frequency division multiplexing) method is applied, and as a frequency used for transmission and reception, for example, a very high frequency band (for example, a 5 GHz band)
Is used.

In the case of this example, a relatively low output is set for the transmission output. For example, when used indoors, wireless transmission over a relatively short distance of about several meters to several tens of meters can be performed. There is as much output.

A data converter 23 performs data conversion of a signal received by the radio transmission / reception processor 22 and data conversion of a signal transmitted by the radio transmission / reception processor 22.

The data converted by the data conversion unit 23 is supplied to the connected device 28 via the interface unit 24, and the data supplied from the connected device 28 is supplied via the interface unit 24. The configuration is such that the data can be supplied to the data conversion unit 23 and converted.

Here, as an external interface of the interface unit 24 of the wireless transmission device, for example, IE
High-speed serial bus 2 such as EE1394 format
7, audio / video information or various data information can be transmitted / received to / from a connected device 28.

Alternatively, these wireless transmission devices may be built in the main body of the device 28 to be connected.

Each unit in each wireless transmission device is configured to execute processing based on the control of the control unit 25 composed of a microcomputer or the like.

In this case, if the signal received by the wireless transmission / reception processing unit 22 of each wireless transmission device is a signal in the management area, the received signal is supplied to the control unit 25 via the data conversion unit 23. The control unit 25 sets each unit to the state indicated by the received information.

Further, the control unit 25 has an internal memory 26.
Is connected, and its internal memory 26 temporarily stores data required for communication control and information on the use of the wireless network and the wireless transmission path, such as the number of communication stations constituting the network and the number of band reservations. is there.

Further, in the radio transmission apparatus serving as the control station 11 of the network, the control unit 25 sends a cycle start (C
S) The signal is supplied to the wireless transmission / reception processing unit 22 via the data conversion unit 23 and transmitted wirelessly.

In the transmission devices 12 to 14 other than the control station of the network, when the received signal is a cycle start (CS) signal, the received signal is transmitted to the control unit 25 via the data conversion unit 23. And the control unit 25 determines the timing of receiving the synchronization signal, sets a frame period based on the synchronization signal, and executes the communication control process at the frame period.

FIG. 3 is a diagram showing a configuration example of a wireless transmission frame according to the present embodiment. Here, a frame is defined and shown for convenience, but it is not always necessary to adopt such a frame structure. In the figure, in the wireless transmission path 30, a transmission frame arriving at a constant transmission frame period 31 is defined, and a management information transmission area 32 and an information transmission area 33 are provided therein.

At the beginning of this frame, a downlink management information transmission section 34 (frame start (FS: Frame Sta.)
rt)) section is arranged, followed by the time information correction transmission section 35 (cycle report (CR:
Cycle Report), and a station synchronization signal transmission / reception section 36 (station sync (SS: S
station Sync)).

The downlink management information transmission section (FS) is used for transmitting information that needs to be shared by the network from the control station, and is composed of a fixed length area and a variable length area.

In the fixed length area, in order to specify the length of the variable length area, the number of communication stations transmitted in the station synchronization signal transmission / reception section (SS) and the number of band reservation transmission areas (RSV) are specified. Designation is performed, and in the variable length area, a communication station to be transmitted in the station synchronization signal transmission / reception section (SS) and a bandwidth reservation transmission area (RSV) are specified.

The station synchronization signal transmission / reception section (SS) has a predetermined length, and the communication station transmitting a signal has a certain period to each communication station constituting the network according to the downlink management information. It is considered that a configuration is assigned to each of them.

For example, this station synchronization signal transmission / reception section (SS)
By receiving everything except the transmission part of the own station,
It is possible to grasp the state of a connection link with a communication station existing around the own station.

Further, by reporting the connection link status in the information transmitted by the next station in the station synchronization signal transmission / reception section (SS), each communication station can grasp the connection status of the network. There is a configuration that can be.

The information transmission area 33 is a bandwidth reservation transmission area (RSV: Reserve) 37 set as needed.
A centrally managed asynchronous transmission area (ASY: Asynchronous) 38 in which the control station performs transmission control, and an unused area (NUA:
Not Using Area) 39.

That is, if there is no need for the bandwidth reservation transmission (RSV) or the unused area (NUA), the information transmission area 33
Can be transmitted as a centrally managed asynchronous transmission area (ASY) 38.

By adopting such a frame structure, in the band reservation transmission area (RSV) 37, for example, the IE
Isochronous transmission defined by the EE1394 format is performed, and in an asynchronous transmission area (ASY) 38, an asynchronous (Async) signal is transmitted.
It is preferable to adopt a configuration capable of performing, for example, (hronous) transmission.

FIG. 4 is a diagram showing an operation example of a transition procedure sequence from the normal mode to the sleep mode. In the figure,
The SSP (S) in which the sleep mode application bit 44 is turned on (ON) from the concerned station 42 which is going to shift from the normal mode 43 to the sleep mode 46 is addressed to the control station 41.
station Sync packet).

The control station 41, which has received the request to turn on the sleep mode application bit 44 (ON) and shift to the sleep mode 46, executes the FSP (Frame Sta
By turning off the SSP request bit in the corresponding station information of the rtPacket (rtPacket), the concerned station 42 is switched from the normal mode 43 to the sleep mode 46.
Notification to shift to.

Further, the concerned station 42 that has received the FSP in which the SSP request bit in the pertinent station information described above is turned off will be shifted to the sleep mode 46 thereafter.

FIG. 5 is a diagram showing an operation example of a sequence of a procedure for shifting from the sleep mode to the normal mode by the concerned parties. In the figure, from a sleep mode 53 to a normal mode 56
The sleep mode application bit 54 is turned off (OFF) from the concerned station 52 which is about to shift to the control station 51.
Is transmitted.

The control station 51 that has received the request to turn off the sleep mode application bit 54 and shift to the normal mode 56 turns on the SSP request bit 55 in the corresponding station information of the FSP. Thus, the concerned station 52 is notified that the mode is shifted from the sleep mode 53 to the normal mode 56.

Further, the concerned station 52 that has received the FSP in which the SSP request bit 55 in the corresponding station information described above is turned on (ON), shifts to the normal mode 56 thereafter.

FIG. 6 is a diagram showing an operation example of a sequence of a procedure for shifting from the sleep mode to the normal mode by the control station. In the figure, a control station 61 is going to shift from a sleep mode 63 to a normal mode 66 and the concerned station 62
To the corresponding station information of the FSP
The SP request bit 64 is turned on (ON) to notify a sleep mode release request.

The above-mentioned SSP request bit 64 is turned on (O
N), the relevant station 62 in the sleep mode that has received the sleep mode release request to shift to the normal mode 66 turns off the sleep mode application bit 65 (OFF).
By transmitting the SSP, the control station 61 is notified of the transition from the sleep mode 63 to the normal mode 66, and thereafter, transitions to the normal mode 66.

FIG. 7 is a diagram showing a temporal change of the flow of the operation sequence in the method of transmitting predetermined information at a constant cycle. In the figure, a portion in a rising state indicates that an operation is being performed. Here, in the communication station in the sleep mode, once the SSP transmission 74 is performed, the communication station is in a sleep state for the transmission cycle 71, and after the predetermined transmission cycle 71 has elapsed, the SSP transmission 7 is performed again.
6 is repeated.

Here, before the SSP transmission 76,
By performing the SSP reception 75 from the peripheral communication station in the network intermittently in the SSP cycle 72 and performing the SSP measurement of the peripheral communication station, a report equivalent to that in the normal mode can be made.

The above-mentioned SSP cycle 72 corresponds to the SSP transmission 76
Is a period corresponding to an integral multiple of the period of one frame 73 in which the operation is performed.

FIG. 8 is a diagram showing a temporal change of the flow of the operation sequence in the method of transmitting and receiving predetermined information at a constant period. In the figure, a portion in a rising state indicates that an operation is being performed. Here, in the communication station in the sleep mode, the SSP reception 8 from the nearby communication station in the network is performed every predetermined transmission cycle 81.
3 and the SSP measurement is performed.
In the next transmission cycle, the SSP measurement is performed again by performing SSP reception 84 again from a peripheral communication station in the network in the next transmission cycle, and the SSP measurement result measured last time is transmitted from the own station. The operation of repeatedly reporting to the control station by SSP transmissions 83 and 84 is shown.

FIG. 9 is a diagram showing a temporal change of the flow of the operation sequence in the method of performing the receiving process in the first cycle. In the figure, a portion in a rising state indicates that an operation is being performed. Here, in the communication station in the sleep mode, the station information including the activation signal of the own station is transmitted every period when the station information is transmitted from the control station.
After the SP reception 92 is performed, the communication station that has been performing the reception operation for the period 91 of the first cycle goes into a sleep state, and the station information including the next start signal of the own station is transmitted from the control station. FS again in the coming cycle
P reception 93, 94, 95, 96, 97 is repeated.

FIG. 10 is a diagram showing a temporal change of the flow of the operation sequence in the method of performing the transmission process in the second cycle. In the figure, a portion in a rising state indicates that an operation is being performed. Here, the operation of the SSP transmission 102 is performed in the communication station in the sleep mode, and thereafter, the communication station that has been performing the transmission operation for the second period 101 is set to a sleep state. After the elapse, the operation of the SSP transmission 103 is repeated.

The radio transmission apparatus serving as the above-described communication station performs the receiving process in the first cycle shown in FIG.
The transmission process is performed in the second period shown in FIG.

The information transmission process performed in the second period shown in FIG. 10 includes a method of transmitting predetermined information at a constant period shown in FIG. 7 and a method of transmitting predetermined information at a predetermined period shown in FIG. A processing method combining the method of transmitting and receiving information may be used.

That is, the transmission cycle 71 shown in FIG.
In correspondence with the second transmission cycle 101 shown in FIG. 10, the SSP transmissions 74 and 76 shown in FIG.
2, 103 may correspond.

The transmission period 81 shown in FIG. 8 is made to correspond to the second transmission period 101 shown in FIG.
The SSP transmissions 10 shown in FIG.
2, 103 may correspond.

FIG. 11 is a diagram showing a configuration example of a frame start packet. The frame start packet is information transmitted from the network control station to all stations on the network in the downlink management information transmission section (FS) 34 shown in FIG.

The packet structure indicates the disclosure time of this frame: cycle time 111-1, and network ID 111 for identifying this network.
-2, an update timer 111-3 indicating the timing up to simultaneous updating of information included in the frame start packet (FSP), and indicating the order of information included in the SSP: SSP counter 111-4, Indicates the transmission cycle: SSP cycle 111-5, indicates the number of SSPs present in the frame: SSP number 111-6, indicates the current number of bandwidth reservation information: indicates slot information number 112-1, indicates the end position of the frame : End of frame pointer 112
-2, indicating an arbitrary number of information: variable-length frame information size 112-3, and CRC (Cyc
Like Redundancy Check) 112-4
Is arranged as fixed-length information.

In addition, the length becomes variable according to the number of SSPs:
Station information (# 1) 113-1, station information (# 2) 113-2, station information (# 3) 11
3-3, station information (# 4) 113-4, and variable length according to the number of slot information: slot information (# 1) 114-1, slot information (# 2) 114-
2, and a CRC 114-3 for error detection is arranged as variable-length information.

FIG. 12 is a diagram showing a configuration example of station information in a frame start packet. The station information includes a station number 121 for identifying the corresponding station, a station state 122 indicating the operating state of the station used for releasing the sleep mode and shifting to the operation mode, and transmitting a station sync packet. SSP request 12 to make request
3. Further, a portion for future expansion is arranged as a spare 124.

FIG. 13 is a diagram showing a configuration example of a station sync packet. This station sync packet is a station (communication station) designated by the station information of the CSP (cycle start packet) in the station synchronization information transmission / reception section (SS) 36 shown in FIG.
Is information to be transmitted to the control station and peripheral communication stations.

The structure of this packet is to notify the control station that it will enter a dormant state: sleep mode application 131, specify the priority of the access control right: priority 132, and determine the information processing capability of this station. Represents: capability 133, and connection link information with other stations: (# 1) 134, (# 2) 13
5, (# 3) 136 and (# 4) 137, and a CRC 138 for error detection.

Although the above-described embodiment has been described with reference to an example in which the present invention is applied to the wireless 1394, it is needless to say that the present invention is not limited to this and can be applied to other wireless networks.

[0071]

According to the radio transmission control method of the present invention, by transmitting predetermined information at a fixed period during the sleep mode, it is possible to determine that the corresponding communication station in the sleep mode has been disconnected from the network. This makes it possible to easily know the communication station, and thereby has an effect that efficient control of information communication can be performed.

Further, according to the radio transmission control method of the present invention, during the period when the communication station is operating in the sleep mode, the same information as in the normal mode is exchanged at the time of the intermittent operation, thereby switching to the normal mode. There is an effect that the restoration can be performed in a shorter time.

Further, according to the radio transmission control method of the present invention, the first intermittent reception cycle and the second intermittent transmission cycle are defined, so that the communication station in the sleep mode has the optimum intermittent reception cycle. This makes it possible to perform the setting described above.

Further, according to the radio transmission control method of the present invention, by performing intermittent reception at a cycle shorter than the second intermittent transmission cycle, the communication station in the sleep mode can be set to the sleep mode in a shorter time. And the normal mode can be activated.

According to the radio transmission control method of the present invention, when a station in the sleep mode wants to shift to the normal mode, it uses the station synchronization signal transmission / reception section of its own station in the first reception cycle. Thus, since the notification can be made to the control station, even if the communication station is in the sleep mode, it is possible to restore the normal mode in a short time.

Further, according to the radio transmission control apparatus of the present invention, by defining the timing for starting the communication station in the sleep mode at a predetermined cycle between the control station and the dormant communication station. Thus, it is possible to obtain a wireless transmission control device in which a timing other than the cycle is set to a sleep state.

Further, according to the radio transmission apparatus of the present invention, the dormant communication station does not need to perform any processing other than the timing at which the activation processing signal is sent from the control station.
There is an effect that the power consumption of the communication station can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a wireless network to which a wireless transmission control method according to an embodiment is applied.

FIG. 2 is a diagram illustrating a configuration example of a wireless transmission device configuring each communication station.

FIG. 3 is a diagram illustrating a configuration example of a wireless transmission frame.

FIG. 4 is a diagram illustrating an example of a sleep mode transition operation.

FIG. 5 is a diagram illustrating an example of a sleep mode active release operation.

FIG. 6 is a diagram illustrating an example of a sleep mode passive release operation.

FIG. 7 is a timing chart showing a method for transmitting predetermined information at a constant cycle.

FIG. 8 is a timing chart showing a method of transmitting and receiving predetermined information at a constant cycle.

FIG. 9 is a timing chart illustrating a method of performing a reception process in a first cycle.

FIG. 10 is a timing chart illustrating a method of performing a transmission process in a second cycle.

FIG. 11 is a diagram illustrating a configuration example of a frame start packet.

FIG. 12 is a diagram illustrating a configuration example of station information.

FIG. 13 is a diagram illustrating a configuration example of a station sync packet.

[Explanation of symbols]

11, 12, 13, 14 ... wireless transmission device, 15 ... network, 21 ... antenna, 22 ... wireless transmission / reception processing unit, 23 ... data conversion unit, 24 ... external interface unit, 25 ... control unit , 26 ... Internal memory, 2
7 ... serial bus, 28 ... connected devices, 34 ...
... Downlink management information transmission section (FS), 36... Station synchronization signal transmission and reception section (SS), 41... Control station, 42.
43: Normal mode, 44: Sleep mode application bit ON (SSP), 45: SSP request bit OFF
(FSP), 46: sleep mode, 51: control station, 52: concerned parties, 53: sleep mode, 54:
... Sleep mode application bit OFF (SSP), 55 ...
... SSP request bit ON (FSP), 56 ... normal mode, 61 ... control station, 62 concerned parties, 63 ... sleep mode, 64 ... SSP request bit ON (FSP),
65 sleep mode application bit OFF (SSP),
66: Normal mode, 71: Transmission cycle, 72: SS
P cycle, 73: 1 frame, 74: SSP transmission, 7
5 ... SSP reception, 76 ... SSP transmission, 81 ... transmission period, 82 ... SSP period, 83 ... SSP reception / transmission, 84 ... SSP reception / transmission, 91 ... first reception period, 92 ... 97 FSP reception, 101 second transmission cycle, 102, 103 SSP transmission, 111-1 ...
Cycle time, 111-2 ... network ID, 1
11-3: Update counter, 111-4: S
SP counter, 111-5 ... SSP cycle, 111-6
... Number of SSPs, 112-1 ... Slot information size, 1
12-2: Frame end pointer, 112-3: Variable length frame information size, 113-1: Station information (# 1), 113-2: Station information (#
2), 113-3 ... station information (# 3), 11
3-4 Station information (# 4), 114-1 ...
Slot information (# 1), 114-2 ... slot information (# 2), 121 ... station number, 122 ... station status, 123 ... SSP request, 124 ... reserve, 131 ... sleep mode application, 132 ... Priority, 134... Connection link information (# 1), 135
...... Connection link information (# 2), 136 ... Connection link information (# 3), 137 ... Connection link information (# 4)

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasunori Maejima 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Takehiro Sugita 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation F term (reference) 5K033 AA05 BA01 BA15 CB01 CB04 DA01 DA17 DB16 DB20 DB25 EA07 EC01 5K034 AA05 CC01 CC02 DD03 EE03 FF01 FF02 HH04 HH14 KK21 LL06 MM39 NN12 NN22 TT02 TT21 5K027 A13

Claims (7)

[Claims] 1. A wireless transmission control method for configuring a wireless network using a plurality of transmission devices serving as communication stations and executing transmission control of the wireless network, wherein a predetermined frame period is provided. A wireless transmission control method, wherein predetermined transmissions of information are performed intermittently for the transmission control in the transmission devices each serving as a communication station at a cycle that is an integral multiple. 2. The wireless transmission control method according to claim 1, wherein the terminal station recognizes the information intermittently transmitted from the transmission device serving as a terminal station in order to manage the wireless network. A wireless transmission control method, wherein information on other communication stations in the vicinity that can be collected is collected before performing the transmission. 3. The wireless transmission control method according to claim 1, wherein the transmission apparatus serving as a control station of the wireless network intermittently transmits information to a corresponding communication station in a sleep mode and receives the information by the corresponding communication station. Set a first cycle to perform
A wireless transmission control method, wherein a second period for intermittently transmitting information from the communication station to the control station in a sleep mode is set. 4. The wireless transmission control method according to claim 3, wherein an activation instruction is issued to the communication station in a sleep mode during the first period. 5. The wireless transmission control method according to claim 3, wherein when the sleep mode is released from the communication station in the sleep mode, the sleep mode is transmitted to the control station in the first cycle. A wireless transmission control method, which performs notification of cancellation. 6. A wireless transmission control apparatus serving as a control station which configures a wireless network using a plurality of transmission apparatuses serving as communication stations and executes transmission control based on management information relating to transmission control of the corresponding wireless network. Wireless means, comprising: receiving means for receiving a sleep mode request from the communication station constituting the wireless network; and transmitting means for transmitting a sleep mode release request of the communication station at a predetermined cycle. Transmission control device. 7. A wireless transmission apparatus serving as a communication station configured to form a wireless network using a plurality of transmission apparatuses serving as communication stations and transmitting or receiving management information related to transmission control of the corresponding wireless network. First transmitting means for transmitting a sleep mode request to the transmission device serving as a control station of the above, and transmitting a sleep mode release request to the control station when the own station wants to transmit information. A wireless transmission apparatus comprising: a second transmitting unit; and a receiving unit that receives a sleep mode release notification from the control station at a predetermined cycle.