Transmission frame and radio unit for the transmission of short messages with different data format

The present invention relates to a transmission frame and a transmitter / receiver described in the superordinate concept of the independent claim.

Short message services for transmitting short messages are known. The short message service sends a short message to a subscriber of a communication network without the need to establish a communication connection with this network in advance. This is especially important in mobile wireless systems, where subscribers are frequently disconnected. In this case, the incoming short message is stored by the network provider of the communication network and transmitted to the subscriber addressed at a later point in time. Subscribers will be notified of incoming short messages addressed to them and can download the short messages from their network providers.

As an example of the short message service, there is a short message service (SMS) based on the GSM standard (Global System for Mobile Communications). This short message service defines a transmission frame for transmitting a short message using up to 160 7-bit ASCII text symbols (American Standard Code for Information Interchange).

Longer text transmission is possible by stitching short messages together. This short message service makes it possible to create and read short messages even with a simple mobile wireless terminal device. In this GSM standard, only short message text transmission is performed, so in the transmission of binary data such as audio data and image data, these data are converted to text format, and after receiving the data, they are converted back to binary format again. necessary.

<p> Therefore, an object of the present invention is to enable short messages containing various different data to be transmitted in a single transmission frame.</p>

<p> The subject is that at least two data fields are provided as the transmission frame of the present invention having the configuration of the independent claim and the transmitter / receiver of the present invention, and data of one multimedia message is stored in these data fields. The problem is solved by storing the first identifier in the first data field and storing a data field-specific identifier different from the first identifier in the second data field. .. As a result, a short message containing various different data can be transmitted in a single transmission frame. In this way, various different media such as text data, voice data, and image data can be easily integrated into one short message, so that a multimedia short message can be formed.</p>

Also, advantageously, the length of the transmission frame is not limited, and any data field can be transmitted side by side in the data frame.

More preferably, by arranging these data fields side by side, it becomes possible to easily separate and download the data of the individual data fields or media having the text data, the audio data or the image data. As a result, only the actually necessary part of the short message needs to be downloaded from the network provider of the communication network, so that the transmission capacity can be reduced.

The configuration of the dependent claim allows for other advantageous configurations and improvements of the transmission frame of the independent claim 1.

A particular advantage is that the first data field is provided with a first identifier representing the composition and / or content of the short message. This makes it particularly easy for the subscriber designated as the destination of the short message to configure and / or configure the short message by transmitting only the first data field from the network provider of the communication network to the addressed subscriber. You can know about the contents. Based on this information, the addressed subscriber can then decide which part or data field of this short message he / she wants to download from the network provider of the communication network.

Also, advantageously, the size of the first data field is limited to a predetermined value. Therefore, even a subscriber whose reception capacity of the short message is limited can know the configuration and / or the content of the entire short message by transmitting the first data field.

Even better, the overall length of the short message is not limited.

Also, advantageously, at least two data fields are provided with identifiers that are unique to each data field and that represent the configuration and / or content of the corresponding data fields. In this way, notifications of the overall structure and / or content of short messages can also be generated by grouping all data field-specific identifiers and sent to the addressed subscriber. This first data field is not overfilled with identifier data, especially if its size is limited.

This data field-specific identifier allows the addressed subscriber to obtain more detailed information about this data field from the network provider when downloading the data field to which it belongs, so it is transmitted using, for example, this data field. Higher reproducibility can be obtained when replaying the data.

Particularly advantageous, the data stored in this first data field resides in a data format readable by all subscribers of the communication network. In this way, short messages can be sent to all subscribers of the communication network, at least in part. Also, all subscribers can at least know about their short messages under the network provider, even if they cannot read certain data fields of their short messages.

Examples of the present invention will be described in the drawings and will be described in detail below. FIG. 1 shows a block circuit diagram for transmitting a short message in a communication network, FIG. 2 shows a general configuration of a transmission frame, and FIG. 3 shows a specific example of the configuration of the transmission frame.

In FIG. 1, 60 indicates a first subscriber of the communication network 10 and 65 indicates a second subscriber. The communication network 10 is particularly configured as a wireless communication network, for example, a mobile wireless network. The first subscriber 60 and the second subscriber 65 are respectively configured as communication devices, particularly, for example, a mobile wireless device, a commercial wireless device, a portable wireless device, and the like. Further, in FIG. 1, the network provider 70 of the communication network 10 is shown, which can also be configured as a communication device, particularly.

On the side of the second subscriber 65, a short message 5 for the first subscriber 60 is created and transmitted to the network provider 70 via the communication network 10 by specifying an appropriate address. The network provider 70 stores the short message 5 and sends a message to the first subscriber 60 notifying the existence of the short message 5 addressed to the subscriber. This message can be sent to the first subscriber 60, for example, when the network provider 70 detects the activation of the first subscriber 60. When the first subscriber 60 requests the network provider 70 to transmit the short message 5 after receiving the above message, the network provider 70 first asks the first subscriber 60 to configure the short message 5 and / or Send a notification to inform you of the content. The first subscriber 60 then downloads some or all of this short message 5 from the network provider 70, so that some or all of this short message 5 is transmitted from the network provider 70 to the first subscriber 60. ..

FIG. 2 illustrates the configuration of such a short message 5. Here, the short message 5 is transmitted from the second subscriber 65 to the network provider 70 in the transmission frame 1. The transmission frame 1 includes a first data field 15, a second data field 20, and in some cases, a third data field 25 and a fourth data field 30. The first data field 15 includes a first identifier 35 representing the configuration of the short message 5. Further, the first data field 15 is provided with a second identifier 40 representing the content of the short message 5. These first identifiers 35 and second identifiers 40 can also be combined into a single identifier that represents the configuration and / or content of the short message 5. Further, the first data field 15 stores data in the first data format. The second data field 20 stores data in a second data format different from the first data format. Data is also stored in the other data fields 25 and 30 provided as needed, and the data format thereof shall be different from the data format of the first data field 15 or the second data field 20. You can, but you don't have to. If more than two data fields are provided in the transmission frame 1, data in different formats are stored in at least two of those data fields, and in the transmission frame 1. The location of these data fields does not matter.

The dotted line in FIG. 2 indicates that the first data field 15 can additionally include a first data field-specific identifier 45 that represents the configuration and / or content of the first data field 15. That is. Correspondingly, the second data field 20 may include a second data field-specific identifier 50 that represents the configuration and / or content of the second data field 20. Correspondingly, the third data field 25 can include a third data field specific identifier 55 that represents the configuration and / or content of the third data field 25, and the fourth data field 30 is the fourth. It can include a fourth data field specific identifier 75 that represents the configuration and / or content of the data field 30.

The first identifier 35 may include a description of the number of data fields 15, 20, 25, 30 in the short message 5. Additional or optionally, the first identifier 35 may include a description of the data format of the data stored in the data fields 15, 20, 25, 30. Additional or optionally, a statement regarding the size of the data fields 15, 20, 25, 30 can also be included in the first identifier 35. The second identifier 40 can also include a description of the data format of the data stored in the data fields 15, 20, 25, 30. Therefore, the second identifier 40 can include, for example, a description as to whether the audio data is stored in one data field or the image data is stored.

At the request of the first subscriber 60, the network provider 70 is configured to transmit the first data field 15 having the first identifier 35 and the second identifier 40 to the first subscriber 60. Therefore, the first subscriber 60 can select which data field of the short message 5 based on the information regarding the configuration and / or the content of the short message 5 transmitted by the first identifier 35 and the second identifier 40. It is possible to check whether it can be downloaded and / or played from the network provider 70 based on the function of the first subscriber. Also, the first subscriber 60 is not interested in all the readable data fields of the short message 5, and when the transmission capacity should be reduced, which readable data field of the short message 5 should be used. You can make a decision whether to download from network provider 70. When the entire first data field 15 having the first identifier 35 and the second identifier 40 should be transmitted to the first subscriber 60 according to the request of the first subscriber 60, the first data field 15 It must be assured as much as possible that the data stored in is present in a data format readable by all subscribers of the communication network 10. This is especially obtained when the data stored in the first data field 15 exists in text format along with the data in the first identifier 35 and the second identifier 40. At that time, for example, GSM standard (Global System for Mobile) SMS format (Short-Message-Service) by Communication) is provided by a subscriber or mobile radio device of this communication network configured according to the GSM standard in a communication network configured according to the requirements of the GSM system. This is because it is readable. In that case, the first data field 15 corresponds to the data field already defined according to the GSM standard for SMS short message service, and its size is 160 7-bit ASCII text symbols (American Standard Code for Information). Interchange) is restricted. The size of the other data fields 20, 25, 30 need not be limited.

As an alternative to the text format, other data formats for the first data field 15, which are also readable by any subscriber of the communication network 10, are known to all subscribers of the communication network 10, including known data formats. It is binary encoded by a reference to an entry in such a table.

At least a portion of the data stored in the first data field 15, such as the data of the first identifier 35 and / or the data of the second identifier 40, consists of binary code values representing indicators of table entries. In these tables, known data formats and / or data formats such as audio and / or video formats are assigned to these indicators.

The data field-specific identifiers 45, 50, 55, 75 also have the data format in the data fields 15, 20, 25, 30 to which they belong and / or the size of the data fields 15, 20, 25, 30 to which they belong, respectively. And / or contains data relating to the data format in the data fields 15, 20, 25, 30 to which they belong. If the first data field 15 contains data in the GSM-SMS-text format and it is determined that this data field is limited to, for example, 160 7-bit ASCII text symbols, then the first data field It is also possible to eliminate the unique identifier 45. It is also possible to configure each data field 15, 20, 25, 30 so that only data in a single data format is stored. It is also possible to configure at least one data field, in particular the second data field 20 and / or optionally one or more other data fields 25, 30, to store data in multiple data formats. Is. Of course, the short message 5 can be configured to include more data fields than the four data fields illustrated in FIG.

In response to the request of the first subscriber 60, the network provider 70 notifies the subscriber about the configuration and / or content of the short message 5, and the network provider 70 sends the data field-specific identifiers 45, 50, 55, 75 In this case, the first identifier 35 and the second identifier 40 are not required, and the first data field 15 is also configured, since it can be configured to be created by the evaluation of and then transmitted to the first subscriber 60. Also, it does not need to be transmitted to the first subscriber 60. However, the notification regarding the configuration and / or content of the short message 5 generated in this way can also be transmitted to the first subscriber 60 in a data format readable by all subscribers of the communication network 10. For that purpose, for example, the GSM-SMS-text format can be provided again, for example, using a data field having 160 7-bit ASCII text symbols.

Next, a specific example of the transmission frame 1 of the short message 5 will be described with reference to FIG. The short message 5 is configured here as a multimedia short message. Reference numerals in FIG. 3 indicate components similar to those in FIG. In FIG. 3, a first data field 15, a second data field 20, and a third data field 25 are provided in the transmission frame 1. No data field-specific identifier is provided for each of the data fields 15, 20, and 25. The first data field 15 contains text data in ASCII text format here, the second data field 20 contains audio data in, for example, a WAV format (Wave), and the third data field 25 contains, for example, GIF format (GIF format). Graphic Interchange Format) image data is included. The first data field 15 having this text data is text formatted according to the GSM-SMS-short message service. The dotted line between the first identifier 35 and the second identifier 40 in FIG. 3 indicates that the first identifier 35 and the second identifier 40 can be combined into one common identifier. Such common identifiers 35, 40 indicate the number of data fields 15, 20, 25, and indicate the contents and size of the second data field 20 and the third data field 25. Therefore, the common identifiers 35 and 40 are as follows.

"Multipart / 2 / Audio / 7654 / Image / 12345" The common identifiers 35 and 40 indicate that there is a short message consisting of a plurality of data fields by the keyword "Multipart". The number "2" is the transmission of a short message 5 in which two other data fields 20, 25, in addition to the always-existing first data field 15 having text data and a length of 160 7-bit ASCII text symbols. It shows that it exists in the frame 1. Since the first data format of the common identifiers 35 and 40 is "Audio" here, the data stored in the second data field 25 is audio data from the common identifiers 35 and 40. It turns out that there is. As the second data format, since the data format of the common identifiers 35 and 40 is "Image", the data stored in the third data field 25 is image data from the common identifiers 35 and 40. It turns out that there is. Following this data format, the common identifiers 35 and 40 indicate the sizes of the data fields 20 and 25 to which they belong, so that the common identifiers 35 and 40 are transmitted in the second data field 20. , The length of the audio file having 7654 bytes of audio data and the length of the image file having 12345 bytes of image data transmitted in the third data field 25 can be found. No description is required for the first data field 15 in the common identifiers 35 and 40. This is because the text data in this example is always compatible with the GSM-SMS-text format and the number is limited to 160 7-bit ASCII text symbols. Is. Additionally, the common identifiers 35, 40 can also be configured to describe the data format for the data in the second data field 20 and the third data field 25. For the audio data in the second data field 20, W as the data format in the common identifiers 35, 40 It is also possible to describe the AV format. For the image data in the third data field 25, the GIF format can also be described as the data format in the common identifiers 35 and 40. It is also possible that the descriptions "Audio" and "Image" of the common identifiers 35 and 40 described above also describe the format of the data stored in the corresponding data fields 20 and 25. At that time, for example, it is assumed that the audio data always exists in a predetermined format, for example, WAV format, and the image data also always exists in a predetermined format, for example, GIF format in the corresponding data field of the transmission frame 1. There is.

As described above, it is also possible to encode a data format and / or a data format for a table known to all subscribers of the communication network 10, for example using a binary code. In the first table for the data format, for example, the data format "text data" is the number "1", the data format "audio data" is the number "2", and the data format "image data" is the number "3". , The data format "video data" is assigned to the number "4", and these numbers can be binary encoded accordingly. In the second table for the data format of the data format "audio data", for example, the data format "WAV" is the number "1", the data format "G.723" is the number "2", and the data format "G". .728 "is the number" 3 ", the data format" MPEG-Audio "(Motion Picture Expert Group) is the number" 4 ", and the data format" AMR "(Adaptive Multi) Rate) belongs to the number "5", which can also be coded in binary accordingly. In the third table for the data format of the data format "image data", for example, the data format "GIF" is set to the number "1", and the data format "JPEG" (Joint Picture Expert Group) is set to the number "2". It belongs to the data format "BMP" (Bitmap) number "3", and these numbers can also be binary encoded accordingly.

The common identifiers 35 and 40 have the following forms.

2/2/1/3/1 The common identifiers 35 and 40 indicate the same matters as described in the above text format. Here, the first number "2" of the common identifiers 35 and 40 indicates the number of data fields in the transmission frame 1 of the short message 5 that is attached to the first data field 15. The second digit "2" of the common identifiers 35, 40 indicates the data format "voice data" in the first table for the data format, and therefore the second data field 20 stores the voice data. It shows that. The third number "1" of the common identifiers 35, 40 indicates the "WAV" data format in the second table for the data format of the data format "audio data" and is stored in the second data field 20. Indicates that the data is in the "WAV" data format. The fourth number "3" of the common identifiers 35, 40 indicates the data format "image data" in the first table for the data format, and therefore the image data is stored in the third data field 25. It shows that there is. The fifth number "1" of the common identifiers 35, 40 indicates the "GIF" data format in the third table for the data format of the data format "image data" and is stored in the third data field 25. Indicates that the data is in the "GIF" data format.

Based on the common identifiers 35 and 40 transmitted to the first subscriber 60, it is meaningful for the subscriber to download the second data field 20 and / or the third data field 25 from the network provider 70. Or you can decide if you want this. If the first subscriber 60 is inaudible, that is, if the audio data cannot be processed or played, the audio data consisting of the second data field 20 will not be downloaded from the network provider 70. Meaning. If the first subscriber 60 cannot be seen, that is, if the first subscriber 60 cannot process or reproduce the image data, the image data including the third data field 25 Downloading from the network provider 70 is also meaningless.

It is also possible to configure the common identifiers 35, 40 to be displayed on the display device of the first subscriber 60 in order to select the data field of the transmission frame 1 of the short message 5 downloaded by the network provider 70. ..

The short message 5 can also include a transmission frame 1 consisting of exactly two data fields 15 and 20, but as described above, the first data field contains text data having the common identifiers 35 and 40. A plurality of data formats or media are grouped in the second data field 20. However, it is also possible to configure the N data formats or media to be transmitted in the short message 5 to be divided into N or N + 1 data fields in the transmission frame 1 of the short message 5. The first subscriber can download all the data fields of the short message 5 individually or together from the network provider 70.

Since the transmission common identifiers 35 and 40 can be evaluated on the side of the first subscriber 60, which data field of the short message 5 is the first in the display device of the first subscriber 60. It is displayed whether it can be downloaded from the network provider 70 based on the function of the subscriber 60 of 1.

The second subscriber 65 generates the short message 5 in the transmission frame 1 described above. The generation of the transmission frame on the second subscriber 65 side here simply connects the data fields 15, 20, 25, 30 and, in some cases, the identifiers 45, 50, 55, 75 peculiar to the data fields. Each one of them can be added. Further, the network provider 70 receives and stores the short message 5 in the described transmission frame 1. If the first subscriber 60 has a corresponding function, the transmission frame 1 can be completely downloaded from the network provider 70 and transmitted to the first subscriber 60. In this case, the first subscriber 60 receives the short message 5 in the described transmission frame 1 and optionally stores and / or reproduces it visually and / or audibly. The first subscriber 60 receives at least some data fields of transmission frame 1 and optionally stores and / or reproduces them visually and / or audibly. The evaluation of the data fields 15, 20, 25, 30 received on the side of the network provider 70 and the first subscriber 60 can be performed, for example, based on the identifiers 45, 50, 55, 75 specific to the data field. However, this is transmitted based on the first identifier 35 and / or the second identifier 40, where these identifiers are transmitted with or optionally transmitted data fields 15, 20, 25, 30 to which they belong. If it is done.

The transmission frame 1 of the present invention is not limited to use in a wireless communication network, and can also be applied to a wired communication network 10. In this case, the subscribers 60 and 65 and the network provider 70 are also connected by wire. It is also possible to configure one of both subscribers 60 and 65 to be connected to the network provider 70 via a wired communication network and the other of both subscribers 60 and 65 via a wireless communication network 10. Therefore, the transmission frame 1 is suitable for both the transmission of the short message 5 in the wired communication network 10 and the transmission of the short message 5 in the wireless communication network 10.

<figref num="1">It is a block diagram for transmission of a short message in a communication network.</figref><figref num="2">It is a figure which shows the general structure of a transmission frame.</figref><figref num="3">It is a figure which shows the specific example of the structure of the transmission frame.</figref>

Code description

10 Communication network, 15 1st data field, 20 2nd data field, 25 3rd data field, 30 4th data field, 35 1st identifier, 40 2nd identifier, 45 1st data field Unique identifier, 50 Second data field specific identifier, 55 Third data field specific identifier, 60 First subscriber, 65 Second subscriber, 70 Network provider, 75 Fourth data field specific identifier identifier