" Multi-media Messaging"
INTRODUCTION
Field of the Invention
The invention relates to transmission of multi-media messages using a service such as the MMS service in which content is temporarily stored, the recipient is notified, and the recipient then pulls the content.
Prior Art Discussion
MMS as specified in the standards provides for users of mobile devices to send a multi-media message to a recipient. The message may, for example incorporate a photograph. The message is sent initially to a store/forward/download multi-media service centre (MMSC), which in turn transmits a notification to the recipient. The recipient then accesses the MMSC with very simple user interfacing and retrieves ("pulls") the actual message.
While this system is quite effective for many situations, there are situations where it is desired to send messages to a wide range of recipients. In this case, the existing mechanisms are complex and ineffective.
PCT Patent Specification No. WO01/22708A1 describes an approach to addressing the problem of communication of messages (voice or text) to multiple recipients in mobile networks. In this approach either short message service (SMS) or email are used to send a messaging service address code and a temporary access code to the intended recipients. The intended recipients then access the selected message by contacting the voice messaging service and entering the temporary access code. This
approach involves use of what is essentially a point-to-point service, namely SMS or email, to transmit the codes. This appears to be time-consuming and complex.
The invention is therefore directed towards providing for simpler communication of multi- media messages to multiple recipients.
SUMMARY OF THE INVENTION
According to the invention, there is provided a method of transmitting a multi-media message to a plurality of intended recipients in a mobile network by transmitting a notification to the recipients and the recipients accessing a multi-media service centre and pulling message content, wherein the notifications are broadcast using a mobile network broadcast service.
In one embodiment, the notifications are broadcast by a cell broadcast entity.
In another embodiment, the notifications are broadcast on a reserved cell broadcast channel.
In a further embodiment, the notifications include an identifier which associates the message with a sender or with a subject matter.
In one embodiment, each recipient device reads the identifier and generates a user output accordingly.
In another embodiment, the recipient device pulls the message content only upon receipt of a user instruction.
In another embodiment, each recipient device automatically pulls the content transparently to the user.
In a further embodiment, the notification string is a binary string.
In one embodiment, the message is initiated by a message controller receiving the message, and transmitting the content to the multi-media service centre and transmitting notification instructions to a broadcast entity.
In another embodiment, an application automatically generates the message to provide an information service to intended recipients, and transmits the message to the message controller.
In a further embodiment, an element in the mobile network automatically monitors device identifiers of recipient devices when pulling message content and uses this information to perform additional services.
In one embodiment, the method further comprises the step of an element choosing a broadcast area for the message.
In another embodiment, said element is the message controller.
In another aspect, the invention provides a multi-media message service centre comprising means for performing multi-media service centre operations of a method as defined above.
In another aspect, the invention provides a cell broadcast entity comprising means for performing cell broadcast entity operations of a method as defined above.
The invention also provides a message controller comprising means for performing message controller operations of a method as defined above.
In another aspect, the invention also provides a mobile device comprising means for performing recipient mobile device operations of a method as defined above.
DETAILED DESCRIPTION OF THE INVENTION
Brief Description of the Drawings
The invention will be more clearly understood from the following description of some embodiments thereof, given by way of example only with reference to the accompanying drawing in which : -
Fig. 1 is a schematic representation of elements and signals involved in transmission of multi-media messages in accordance with the invention.
Description of the Embodiments
Referring to Fig. 1 the following elements are illustrated.
1, multi-media service centre (MMSC);
2, cell broadcast centre (CBC); 3, mobile network cells, in which there are mobile devices 4; and
5, a message controller residing in the Internet.
The message controller 5 initiates implementation of a method for transmission of a message to multiple recipients in the mobile network cells 3. It interfaces with applications to receive the message content and instructions. While it is illustrated as a stand-alone entity, it may alternatively be incorporated in an MMSC 1, in a CBC 2, or in an application server.
The particular recipients are not known, however, it is known that they fall within a pool of possible recipients. This pool of possible recipients are mobile network
subscribers who subscribe to a particular "messaging" broadcast channel of the CBC 2. This channel is one of the "reserved" channels as specified in the CB standards.
The mobile devices of this pool of subscribers are each programmed to operate in one of the following modes:
(a) temporarily not tune into the messaging channel, or
(b) tune in with a user-option mode, or
(c) tune in with an automatic pull mode.
When the MMSC 1 receives the message from the controller 5 it stores the content. The message controller 5 generates a binary notification string in which an embedded identifier identifies the nature of the message. For example the identifier may associate the message with a particular sender person, a weather reporting application, or a financial reporting application. In general, the identifier associates the message with a sender and/or with a subject matter.
The CBC 2 broadcasts the notification string on the messaging channel. The broadcast area is dynamically selected according to the desired pool of potential recipients. For example, a particular geographical area may be selected. Thus, the pool of potential recipients is determined by the broadcast cell or cells 3 and by the set of subscribers "tuned" to the messaging CBC channel.
If a device 4 is in mode (a) above it ignores the notification string until mode (b) or (c) is activated. At some later time it may be activated by the user so that it operates in mode (b) or (c).
If the device 4 is in mode (b) it reads the identifier embedded in the notification string and determines from it the associated service and/or sender. It uses this information to generate a prompt for the user, such as: "Would you like a weather forecast update MM message?", or
"Would you like to retrieve a message from Joe Bloggs?".
The user then inputs a Yes or No selection. If Yes, the device accesses the MMSC 1 using conventional MMS pull techniques and downloads the message.
If the device is in mode (c) it does not give the user an option, but instead automatically pulls the message content from the MMSC 1 and presents it to the user.
In one embodiment the MMSC 1 monitors the mobile device identifier as it pulls the content and uses this information in a manner authorised by the recipient user to perform appropriate billing and/or to offer additional services to the user. Thus, the user obtains a better service more closely related to his or her profile, and the network operator is in a position to provide more targeted services and to obtain additional revenue.
It will be appreciated that the invention allows senders to transmit messages to a wide range of recipients in a very simple manner. It achieves this without need for additional network elements for transport, essentially using existing CBC and MMSC hardware and channels. The fact that there is no need for point-to-point transmission of notifications is a major advantage. The network operator and the sender achieve the "best of both worlds" in the multiple device coverage of broadcast and the direct communication aspect of pulling of the content. Heretofore, CBC broadcast has not provided feedback to the operator of usage of channels because there has not been any interaction. On the other hand MMS has been limited by the need to individually notify each intended recipient in a point-to-point manner. Also, as described above the potential pool of recipients can be modified by choice of broadcast cell and by provision of devices tuned to the messaging broadcast channel.
The invention is not limited to the embodiments described but may be varied in construction and detail. For example, the broadcast system used may not be CBC, but instead a low-level broadcast scheme for device-to-base station interaction for monitoring device location. In this embodiment, all devices subscribing to the network operator are automatically "tuned", and so all are in the pool. Also, it is not essential that the devices have the option of modes (a), (b), or (c). For example, there may be no option for mode (c) in which user selection is required for all MM content pulls. It is also envisaged that the notification string may comprise text or other protocol instead of binary format. Further, the message controller may be incorporated in a sending application, or alternatively it may be incorporated in an MMSC or in a CBC.