JP2002217827A - Diversity transmission device and method for mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a mobile station device to correctly restore data, even when deficiency occurs in received data from a base station controller in any of a plurality of base station devices, when the plurality of base station devices perform diversity transmission of the data to one mobile station device by the control of the base station controller. SOLUTION: In the base station controller 102, a control information attaching means 108 stores presence/absence of diversity transmission in a wire transmission frame 122, and a duplicating means 109 duplicates wire transmission frames 122a and 122b as many as the number equal to the number of routes of the diversity transmission. In the base station devices 103a and 103b, a radio frame assembling means 115 stored a data frame 121 in radio frames 123a and 123b and transmits the data frame 121 to the mobile station device 104, when diversity transmission and when the wire transmission frames 122a and 122b of all user channels multiplexed to the same physical channel are present.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diversity transmitting apparatus and a diversity transmitting apparatus in a mobile communication system for performing diversity transmission from a plurality of base station apparatuses controlled by a base station control apparatus to one mobile station apparatus such as a portable telephone. About the method.

[0002]

2. Description of the Related Art Conventionally, in a mobile communication system using a CDMA (Code Division Multiple Access) system as a radio transmission method such as IMT-2000, a base station control device is connected to one mobile station via a plurality of base station devices. Diversity transmission for transmitting signals such as voice, packets, and control information to devices has been proposed.

[0003] This is because the transmission information is duplicated in the base station controller, and the duplicated transmission information is transmitted in parallel to a plurality of base station devices via a plurality of wired transmission paths, thereby providing a mobile station device. This is a transmission method that enables high-quality communication even with bit errors in a wireless transmission path to a wireless LAN.

[0004] In particular, regarding a method of transmitting and receiving a wired transmission frame in a wired transmission path between a base station control device and a base station device when performing diversity transmission, 3GPP TS2
5.427 UTRAN Iub / Iur Inter
face User Plane Protocol
for DCH Data Streams.

FIG. 5 is a block diagram showing a configuration of a conventional mobile communication system.

The mobile communication system shown in FIG. 5 includes a core network 501, a base station control device 502, a plurality of base station devices 503a and 503b, and a mobile station device 504.
It is comprised including. However, the base station device 503
a and 503b are two in this example.

The core network 501 and the base station controller 502 are connected by a wired transmission line 505, and the base station controller 502 and each of the base station devices 503a and 503b are independent of the wired transmission lines 506a and 506b. Connected by In addition, each base station device 503a, 503b
Performs wireless communication with the mobile station device 504 via the wireless transmission paths 507a and 507b.

In such a configuration, when transmitting variable-length data from the core network 501 to the mobile station device 504, first, the core network 501 transmits a data frame 510 to the base station control device 502 via the wired transmission line 507. Send.

The base station controller 502 that has received the data frame 510 generates the data frames 511a and 511b by duplicating the received data frame 510, and transmits the data frames 511a and 511b via the wired transmission lines 506a and 506b. , 503b.

One base station apparatus 503a assembles a radio frame 512a by adding control information about the frame length to the received data frame 511a.
The data is transmitted to the mobile station device 504 via the wireless transmission path 507a.

[0011] Similarly, the other base station apparatus 503b
Also, a radio frame 512b is assembled by adding control information about the frame length to the received data frame 511b, and this is transmitted to the mobile station device 5 via the radio transmission path 507b.
04.

The mobile station apparatus 504 converts the received radio frames 512a, 512b into the radio transmission paths 507a, 507.
The transmission delay at 07b is corrected, the phases are aligned, and superimposition and synthesis are performed to restore the received data.

The data length is detected by referring to the control information included in the restored received data,
As a result, a variable-length data frame 510 transmitted from the core network 501 is obtained.

As described above, when one mobile station apparatus 504 receives the same duplicated data via a plurality of wireless transmission paths 507a and 507b, one of the wireless transmission paths 507a is affected by fading or the like. Even if the data quality is degraded, it is possible to perform high-quality data reception by combining data received from the other wireless transmission path 507b.

[0015]

However, in the conventional apparatus, it is assumed that the same radio frames 512a and 512b are transmitted from the respective base station apparatuses 503a and 503b. Therefore, for example, when a part of the data frame 511a transmitted to the one base station device 503a via the wired transmission path 506a is lost, the radio frame 5 transmitted from each of the base station devices 503a and 503b is lost.
12a and 512b are different. In this case, there is a problem that the data frame 510 cannot be correctly restored in the mobile station device 504.

In particular, when a plurality of user channels are multiplexed and transmitted on the same radio channel, a part of the data of the multiplexed user channel is, for example, ATM (Asynchronous Trunk).
Assume that the wire transmission line 506a or 506b of the ansfer mode) is missing. In this case, each wireless transmission path 507
a, wireless frames 512a, 51 transmitted by 507b
2b, the mobile station device 504 cannot correctly restore the data frame 510.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and when transmitting data diversity from a plurality of base station apparatuses to one mobile station apparatus under the control of a base station control apparatus, a plurality of base station apparatuses are required. It is an object of the present invention to provide a diversity transmitting apparatus and a diversity transmitting method in a mobile communication system capable of correctly restoring data in a mobile station apparatus even when a failure occurs in received data from a base station control apparatus in any of the above cases. I do.

[0018]

SUMMARY OF THE INVENTION A diversity transmitting apparatus in a mobile communication system according to the present invention determines a number of radio paths indicating how many base station apparatuses are communicating with one mobile station apparatus. And providing means for assembling a wire transmission frame signal by adding control information indicating the presence of diversity transmission to the data when the number of wireless routes is determined to be two or more by this means, and a wired means assembled by this means. A base station control device including a duplication unit that duplicates a transmission frame signal to the same number as the determined number of wireless routes, and a transmission unit that transmits the duplicated wired transmission frame signal to the communicating base station device; Holding means for holding the transmitted wire transmission frame signal, reading means for reading the held wire transmission frame signal, and wire transmission read by this means. Assembling means for assembling a radio frame signal to be transmitted to the mobile station apparatus using the data, only when the control information of the frame signal indicates that diversity transmission is present, and there is no defect in the data of the wired transmission frame signal. And a base station device having the same.

According to this configuration, at the time of diversity transmission, data is assembled into a radio frame signal and transmitted to the mobile station only when there is no problem in the data transmitted from the base station controller to the base station. . Thus, when a failure occurs in the data received from the base station control device in any of the plurality of base station devices, the data in which the failure has occurred is not transmitted to the mobile station device. In the mobile station apparatus, it is possible to eliminate a data error caused by combining data having a failure with data from another wireless transmission path. Therefore, data can be correctly restored by the mobile station device.

According to the diversity transmitting apparatus in the mobile communication system of the present invention, in the above-described configuration, when a plurality of user channels of a wired transmission frame are multiplexed on the same physical channel and transmitted from the base station controller, the assembling means is provided. Is used only when the control information of the wired transmission frame signal indicates that the diversity transmission is performed and there is a wired transmission frame signal of all user channels multiplexed on the same physical channel, using the data of the wired transmission frame signal. A configuration for assembling a radio frame signal transmitted to the mobile station device is adopted.

According to this configuration, at the time of diversity transmission, data is assembled into a radio frame signal and moved only when there is a wired transmission frame signal of all user channels transmitted from the base station control device to the base station device. Sent to the station device.

According to the diversity transmitting apparatus in the mobile communication system of the present invention, in the above-mentioned configuration,
When the number of wireless routes is determined to be 1 by the determination means, control information indicating no diversity transmission is added to the data to assemble the wire transmission frame signal, and the assembling means transmits the control information of the wire transmission frame signal to the diversity transmission. When no is indicated, a configuration is adopted in which a wireless frame signal to be transmitted to the mobile station device is assembled using the data of the wired transmission frame signal.

According to this configuration, when diversity transmission is not performed, all data received by the base station apparatus can be transmitted to the mobile station apparatus.

According to the diversity transmitting apparatus in the mobile communication system of the present invention, in the above configuration,
If there is no transmission data, a wired transmission frame signal containing only control information is assembled, and the assembling means determines that there is a data defect when the wired transmission frame signal contains only the control information.

According to this configuration, even when there is no transmission data in the base station control device, it is regarded as a data defect in the base station device and no radio frame signal is transmitted to the mobile station device.

According to the diversity transmitting method of the present invention, the base station control device determines how many base station devices are communicating with one mobile station device, and when the determined number is 2 or more, Assembling a wire transmission frame signal by adding control information indicating the presence of diversity transmission to data, copying the assembled wire transmission frame signal to the same number as the determined number, and copying the copied wire transmission frame signal to the Transmit to the communicating base station device, in the base station device, receive the transmitted wired transmission frame signal,
Only when the control information of the received wired transmission frame signal indicates that there is diversity transmission and there is no problem in the data of the wired transmission frame signal, a wireless frame signal is assembled using the data and transmitted to the mobile station apparatus. I did it.

According to this method, at the time of diversity transmission, data is assembled into a radio frame signal and transmitted to the mobile station only when there is no problem in the data transmitted from the base station controller to the base station. . Thus, when a failure occurs in the data received from the base station control device in any of the plurality of base station devices, the data in which the failure has occurred is not transmitted to the mobile station device. In the mobile station apparatus, it is possible to eliminate a data error caused by combining data having a failure with data from another wireless transmission path. Therefore, data can be correctly restored by the mobile station device.

[0028]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a diversity transmitting apparatus in a mobile communication system according to an embodiment of the present invention.

The mobile communication system shown in FIG. 1 includes a base station control device 102 connected to a core network (not shown) via a wired transmission line 101, and a plurality of base station devices 103.
a, 103b and a mobile station device 104. The base station control apparatus 102 and the plurality of base station apparatuses 103a and 103b constitute a diversity transmitting apparatus according to the present embodiment. However, the base station apparatuses 103a, 103
03b is two in this example.

The base station controller 102 includes a transmission path IF (interface) unit 105, a transmission control unit 106 provided for each user channel, a diversity determination unit 107, a control information adding unit 108, and a duplication unit 109.
And a transmission line IF unit 110.

Each of the base station apparatuses 103a and 103b has the same configuration, and includes a transmission path IF unit 111 and a reception buffer unit 112 provided for each user channel, as shown on behalf of the base station apparatus 103a. , A buffer reading means 113 provided for each user channel, a clock means 114, a radio frame assembling means 115, and a radio transmission path IF means 116.

The base station controller 102 and each of the base station apparatuses 103a and 103b are connected to an independent wired transmission line 1 respectively.
05a and 105b. That is, the transmission path IF
The means 110 and 111 are connected to the respective wired transmission lines 105a, 105
5b.

Each base station device 103a, 103b
Performs wireless communication with the mobile station device 104 via the wireless transmission paths 106a and 106b. In other words, each of the base station apparatuses 103a and 103b communicates with the mobile station apparatus 1 via the wireless transmission path IF means 116 mounted on each of them.
04 is communicated wirelessly.

Here, in the base station controller 102,
The transmission line IF unit 105 extracts the data frame 121 received from the core network via the wired transmission line 101.

The transmission control means 106 includes the transmission path IF means 1
The data frame 121 extracted in step 05 is received, and the received data frame 121 is output to the control information providing means 108 at every predetermined clock cycle (for example, 10 ms). If the data frame 121 is not received, information indicating no data is sent to the control information adding unit 1.
08.

The diversity determining means 107 determines how many wireless routes (diversity routes) are being used for communication with the mobile station device 104 by communicating with each of the base station devices 103a and 103b. , That is, control information indicating how many wireless routes are being used to communicate with the mobile station device 104 to the control information adding means 108 and the duplicating means 109.

When the control information input from the diversity judging means 107 indicates that only one route is being communicated, the control information adding means 108 generates header information indicating that no diversity transmission is performed, and outputs control information for two or more routes. If it indicates communication, generate header information indicating that there is diversity transmission,
The wire transmission frame 122 is assembled by adding any header information to the data frame 121. Further, when the information indicating that there is no data is notified from the transmission control unit 106, the wired transmission frame 122 including only the header information is assembled.

The copying means 109 is provided with the control information adding means 10
8 is copied to the same number as the number of routes notified by the control information from the diversity determining unit 107, and the copied wired transmission frame is
The signal is output to the transmission path IF unit 110 in synchronization with the clock signal input from the transmission control unit 106.

The transmission line IF unit 110 is provided with wired transmission frames 122a and 122b copied for each user channel.
Is transmitted to the base station apparatuses 103a and 103b communicating with the mobile station apparatus 104 via the wired transmission lines 117a and 117b. However, the wired transmission frame 122a,
In each of the channels 122b, all user channels of the same destination are multiplexed and transmitted on the same physical channel.

In the base station device 103a (103b is omitted because it has the same configuration), the transmission line IF unit 111 extracts the wired transmission frame 122a received from the base station control device 102 via the wired transmission line 117a, and 1
22a is written in the buffer area of the corresponding user channel in the reception buffer means 112.

The clock unit 114 is connected to the transmission control unit 10.
6 generates a clock signal synchronized with the clock cycle, and outputs the clock signal to the buffer reading means 113.

The buffer reading means 113 reads out the wire transmission frames 122a of all user channels from the reception buffer means 112 every time the clock signal is inputted.

When the header information of the wire transmission frame 122a for each user channel read by the buffer reading means 113 indicates no diversity transmission, the radio frame assembling means 115 deletes the header information from the wire transmission frame 122a. The data frame 121 is extracted, and length information indicating the length of the data frame 121 for all user channels is added to the data frame 121 to assemble a wireless frame 123a.

If the header information indicates that diversity transmission is performed, and if there are wired transmission frame signals of all user channels multiplexed on the same physical channel,
The data frame 121 is extracted by deleting the header information from the wire transmission frame 122a.
1 to the wireless frame 123a by adding length information indicating the length of the data frame 121 for all user channels.
Assemble.

Further, if the header information indicates that diversity transmission is to be performed, and if there is no wired transmission frame 122a for all user channels multiplexed on the same physical channel, the wired transmission frame 122 for all user channels is not included.
Discard all a. In this case, since the wireless frame 123a is not assembled, nothing is transmitted to the mobile station device 104. Also, when only the header information is used, the radio frame 123a is not assembled similarly, so that nothing is transmitted to the mobile station device 104.

The wireless transmission path IF means 116 is a wireless frame 123 assembled by the wireless frame assembling means 115.
a is transmitted to the mobile station device 104 via the wireless transmission path 118a.

Next, the operation of diversity transmission in the mobile communication system having such a configuration will be described with reference to flowcharts shown in FIGS. 2 and 3 and a timing chart shown in FIG.

However, in FIG. 4, (a) shows that the base station controller 102
1 indicates the timing of receiving the “1”. (B) is the base station device 1
The timings at which the wires 03a and 103b receive the wired transmission frames 122a and 122b from the wired transmission lines 117a and 117b are shown. (C) shows a case where the base station apparatuses 103a and 103b transmit the radio frame
a and 123b are shown. (D) shows the timing at which the mobile station device 104 receives and processes the data frame 121.

In step ST201 of FIG. 2, transmission control means 106 of base station control apparatus 102 determines whether or not it is time to transmit to base station apparatuses 103a and 103b. As a result, if it is not the transmission timing,
The determination process of step ST201 is repeated.

If it is the transmission timing, step ST
At 202, the diversity determining means 107 determines whether or not the transmission is diversity transmission. This is performed by determining the number of routes from the base station apparatuses 103a and 103b to the mobile station apparatus 104.

If the result of this determination is that the number of routes is two or more,
The diversity determining unit 107 outputs control information indicating that communication is being performed using two or more routes to the control information adding unit 108 and the duplicating unit 109.

Then, in step ST203, control information providing means 108 sets the presence of diversity transmission in the header information according to the control information.

After that, the control information adding means 108
As shown at timings t1 to t2 in (a), if the data frame 121 has been received by the transmission line IF unit 105, the data frame 121 is received in step ST204.
1 to add the header information, and assemble the wire transmission frame 122. If the data frame 121 has not been received, as shown at timings t3 to t4 in (a), a wired transmission frame 122 including only header information is assembled.

Next, in step ST205, the duplication means 109 converts the wired transmission frame 122 inputted from the control information adding means 108 into the diversity judgment means 10
7 and the same number of routes as notified by the control information from
This is output to the transmission line IF unit 110 in synchronization with the clock signal input from the transmission control unit 106.

Then, in step ST206, the transmission line IF unit 110 transmits the wired transmission frames 122a and 122b duplicated for each user channel to the wired transmission lines 117a and 117b. Thereafter, step ST
Returning to 201, the above processing is repeated.

On the other hand, if the result of determination in step ST202 is that the number of routes is one, the diversity determining means 107
Control information indicating that communication is being performed using the route is output to the control information adding unit 108 and the duplicating unit 109.

Then, in step ST207, the control information providing means 108 sets no diversity transmission in the header information according to the control information.

After that, the control information adding means 108
As shown at timings t1 to t2 in (a), if the data frame 121 is received by the transmission line IF unit 105, the data frame 121 is received in step ST208.
1 to add the header information, and assemble the wire transmission frame 122. If the data frame 121 has not been received, as shown at timings t3 to t4 in (a), a wired transmission frame 122 including only header information is assembled. Then, the process proceeds to step ST206.

As described above, the wired transmission paths 117a, 117
Wire transmission frames 122a, 122b transmitted to
Are the timings t1 to t2 or t3 to t4 in FIG.
As shown in (1), the data is received by the transmission path IF unit 110 of the base station apparatuses 103a and 103b, and is written in the buffer area of the corresponding user channel in the reception buffer unit 112. Note that timings t1 to t2 or t3 in FIG.
Header information is represented by H in the wired transmission frames 122a and 122b denoted by t4.

Next, in step ST301 of FIG. 3, the buffer reading means 113 of the base station apparatuses 103a and 103b determines whether it is time to transmit to the mobile station apparatus 104. As a result, if it is not the transmission timing, the determination process of step ST301 is repeated.

If it is the transmission timing, step ST
At 302, the buffer reading means 113 reads the wire transmission frame 122 a for each user channel from the reception buffer means 112 and outputs it to the wireless frame assembling means 115.

Here, the radio frame assembling means 115
It is determined whether the header information of the wired transmission frame 122a for each user channel indicates whether or not diversity transmission is performed.

If the result of this determination indicates that diversity transmission is present, in step ST 303, radio frame assembling means 115 determines whether or not there are wired transmission frames 122 a and 122 b of all user channels multiplexed on the same physical channel. I do.

If the result of this determination is that there is, step S
At T304, the radio frame assembling unit 115 extracts the data frame 121 by deleting the header information from the wire transmission frames 122a and 122b, and adds the data frame 121 for all user channels to the data frame 121.
The radio frames 123a and 123b are assembled by adding length information indicating the length of 21.

The radio frames 123a and 123b are
This is shown at timings t1 and t2 in FIG. However, in the radio frames 123a and 123b, length information is indicated by L, and data is indicated by and.

Further, in step ST 304, the wireless frame assembling means 115
As shown at timings t3 to t4 in FIG. 4B, when a and 122b consist only of header information, the wireless frame 123a is not assembled. In this case, nothing is transmitted to the mobile station device 104.

If the result of determination in step ST302 is that the header information indicates no diversity transmission, in step ST304, radio frame assembling means 115
The header information is deleted from the wire transmission frames 122a and 122b to extract the data frame 121. The data frame 121 is added with length information indicating the length of the data frame 121 for all user channels, and the radio frames 123a and 123b are added. Assemble.

Then, in step ST305, the wireless transmission path IF means 116 transmits the wireless frames 123a and 123b assembled in step ST304 to the state shown in FIG.
As shown at timings t1 to t2 in (c), the signal is transmitted to the wireless transmission paths 118a and 118b. The transmitted wireless frames 123a and 123b are received by the mobile station device 104 as shown at timings t1 and t2 in FIG.

On the other hand, it is assumed that as a result of the determination in step ST303, the wired transmission frames 122a and 122b are not from all user channels. For example, as shown at timings t4 to t5 in FIG.
b, a wire transmission frame 1 of a certain user channel
22b, so that the radio frame assembling means 115
Is not from all user channels.

In this case, in step ST306,
The radio frame assembling means 115 discards all the wired transmission frames 122b of all the user channels. In this case, since the wireless frame 123b is not assembled, as shown in FIG.
a, a wireless frame 12 having a data frame of
3a is transmitted, but nothing is transmitted to the other wireless transmission path 118b. As a result, the timing t in FIG.
As shown in 4 to t5, in the mobile station device 104, only the data frame 121 is received.

As described above, according to the diversity transmitting apparatus in the mobile communication system of the present embodiment, diversity determining means 107 in base station control apparatus 102.
Thus, several base station apparatuses 103 are connected to one mobile station apparatus 104.
The number of wireless routes indicating whether a and 103b are communicating is determined. If the number of wireless routes is 2
When it is determined that the above is the case, the header information indicating the presence of the diversity transmission is added to the data frame 121 to assemble the wire transmission frame 122. The duplication unit 109 duplicates the wired transmission frame 122 to the same number as the determined number of wireless routes, and the transmission line IF unit 110 copies the duplicated wired transmission frames 122a and 122b to the communicating base station devices 103a and 103b. 103b.

In each of the base station apparatuses 103a and 103b, the reception buffer means 112 holds the wired transmission frames 122a and 122b, and the buffer reading means 113
Then, the held wire transmission frames 122a, 122
Read b. In the wireless frame assembling means 115, the read control information of the wired transmission frames 122a and 122b indicates that diversity transmission is performed, and there are wired transmission frames 122a and 122b of all user channels multiplexed on the same physical channel. Only in this case, the radio frames 123a, 12b transmitted to the mobile station device 104 using the data of the wire transmission frames 122a, 122b.
3b was assembled.

According to this configuration, at the time of diversity transmission, base station control apparatus 102 transmits a signal from base station apparatus 103a, 103
Only when the wire transmission frames 122a and 122b of all the user channels transmitted to 03b exist, the data is assembled into the radio frames 123a and 123b and transmitted to the mobile station device 104. As a result, the base station control device 1 is controlled by any of the plurality of base station devices 103a and 103b.
If a problem occurs in the received data from the mobile station device 104, the data having the problem will not be transmitted to the mobile station device 104. Data error due to being combined with the data from the wireless transmission path. Therefore, data can be correctly restored by the mobile station device.

In the present embodiment, the case where the number of routes of diversity is 2 has been described.
Even with the above, the same effect can be obtained.

[0076]

As described above, according to the present invention,
When data is diversity-transmitted from a plurality of base station devices to one mobile station device under the control of the base station control device,
Even if a failure occurs in the data received from the base station control device in any of the plurality of base station devices, the data can be correctly restored by the mobile station device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a diversity transmitting apparatus in a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining an operation of a base station controller of the diversity transmitting apparatus in the mobile communication system according to the above-mentioned embodiment.

FIG. 3 is a flowchart for explaining an operation of the base station apparatus of the diversity transmitting apparatus in the mobile communication system according to the above embodiment.

FIG. 4 is a timing chart for explaining the operation of the diversity transmitting apparatus in the mobile communication system according to the embodiment.

FIG. 5 is a block diagram showing a configuration of a conventional mobile communication system.

[Explanation of symbols]

 101, 117a, 117b Wired transmission path 102 Base station controller 103a, 103b Base station apparatus 104 Mobile station apparatus 105, 110, 111 Transmission path IF unit 106 Transmission control unit 107 Diversity determination unit 108 Control information adding unit 109 Duplicating unit 112 Reception Buffer means 113 Buffer reading means 114 Clock means 115 Wireless frame assembling means 116 Wireless transmission path IF means 118a, 118b Wireless transmission path 121 Data frames 122, 122a, 122b Wired transmission frames 123a, 123b Wireless frames

Claims (5)

[Claims] 1. A determining means for determining the number of wireless routes indicating how many base station devices are communicating with one mobile station device, and the determining means determines that the number of wireless routes is two or more. In this case, an application unit for assembling a wire transmission frame signal by adding control information indicating the presence of diversity transmission to the data, and copying the wire transmission frame signal assembled by this means to the same number as the determined number of wireless routes. A duplicating unit, a base station control device having a transmitting unit that transmits the duplicated wired transmission frame signal to the communicating base station device, a holding unit that retains the transmitted wired transmission frame signal, Reading means for reading the held wire transmission frame signal; and control information of the wire transmission frame signal read by this means indicating that diversity transmission is performed, and A base station apparatus having assembling means for assembling a radio frame signal transmitted to the mobile station apparatus using the data only when there is no defect in the data of the system signal. A diversity transmitting device in a communication system. 2. When a plurality of user channels of a wire transmission frame are multiplexed and transmitted on the same physical channel from the base station controller, the assembling means determines that the control information of the wire transmission frame signal has diversity transmission. Assembling a wireless frame signal to be transmitted to the mobile station apparatus using data of the wired transmission frame signal only when there is a wired transmission frame signal of all user channels shown and multiplexed on the same physical channel. The diversity transmitting apparatus in a mobile communication system according to claim 1, wherein: 3. The assigning means, wherein the determining means determines that the number of wireless routes is one.
When it is determined that diversity transmission is not performed, control information indicating no diversity transmission is added to the data to assemble the wired transmission frame signal.If the control information of the wired transmission frame signal indicates that no diversity transmission is performed, the wired transmission frame signal is transmitted. 3. The diversity transmitting apparatus in a mobile communication system according to claim 1, wherein a radio frame signal transmitted to the mobile station apparatus is assembled using data of the frame signal. 4. An assembling means assembles a wire transmission frame signal including only control information when transmission data does not exist, and assembling means detects a data defect when the wire transmission frame signal includes only the control information. The diversity transmitting apparatus in the mobile communication system according to any one of claims 1 to 3, wherein: 5. The base station control device determines how many base station devices are communicating with one mobile station device, and when the determined number is 2 or more, a control indicating that diversity transmission is present. A wire transmission frame signal is assembled by adding information to the data, the assembled wire transmission frame signal is copied to the same number as the determined number, and the copied wire transmission frame signal is copied to the base station apparatus during communication. And the base station apparatus receives the transmitted wired transmission frame signal, and the control information of the received wired transmission frame signal indicates that diversity transmission is performed, and there is no defect in the data of the wired transmission frame signal. Only in
A diversity transmission method, comprising assembling a radio frame signal using the data and transmitting the frame signal to the mobile station apparatus.