US20130084898A1 - Group messaging at mobile terminal in autonomous network - Google Patents

Abstract

A proxy apparatus for group messaging at a mobile terminal in the autonomous network includes an acquiring device, configured to acquire a message and the identifiers of multiple mobile terminals to which the message is to be sent; a transmitting device, configured to transmit a message via the autonomous network to one or more mobile terminals in the autonomous network; and a message aggregating device, configured to generate an aggregate message, the aggregate message containing a message and identifiers of multiple mobile terminals to which the message is to be sent, wherein the transmitting device is further configured to send the aggregate message generated by the message aggregating device to a base station of mobile terminals.

Description

PRIORITY
• This application claims priority to Chinese Patent Application No. 201110305461.6, filed 30 Sep. 2011, and all the benefits accruing therefrom under 35 U.S.C. §119, the contents of which in its entirety are herein incorporated by reference.
BACKGROUND
• The present disclosure relates generally to wireless communication, including short message service (SMS) and, in particular, to the reduction of communications traffic between mobile terminals and the base station in the course of applying SMS service.
• Wireless frequency spectrum is an important resource for wireless communication services. With the development of broadband wireless communication, the demand for frequency spectrum tends to be in rapid and exponential growth. One of the embodiments is the popularity of small piece data services such as SMS and microblog. SMS is a tool that provides the user of mobile phone with short messages or other information. Microblog is a new means of communication. Microblog users may publish instant messages by distributing short posts over the network via mobile terminals such as mobile phones.
• The data transportation capacity provided by the current wireless access network for data service is limited by wireless frequency spectrum resources. In reality, it often happens that transportation of a great deal of SMS messages of small piece data would burst in a short period of time. For example, at large gatherings, the huge communications traffic due to a great deal of SMS messages sent by group messaging would have a serious impact on a wireless access network, often leading to temporary unavailability of the SMS service.
SUMMARY
• In one embodiment, a method for group messaging at a mobile terminal in an autonomous network includes acquiring a message and a list of target identifiers, the list of target identifiers containing the identifiers of multiple mobile terminals to which the message is to be sent; transmitting the message via the autonomous network to any mobile terminal of the multiple mobile terminals that is located in the autonomous network, and removing the identifier of the mobile terminal from the list of target identifiers to obtain an updated list of target identifiers; generating an aggregate message, wherein the aggregate message contains the message and the identifiers in the updated list of target identifiers; sending the aggregate message to a base station if the length of the aggregate message does not exceed a pre-defined threshold; and dividing the aggregate message into multiple fragment messages and then sending the multiple fragment messages to the base station if the length of the aggregate message exceeds the pre-defined threshold.
• In another embodiment, a proxy apparatus for group messaging at a mobile terminal in the autonomous network includes an acquiring device, configured to acquire a message and the identifiers of multiple mobile terminals to which the message is to be sent; a transmitting device, configured to transmit a message via the autonomous network to one or more mobile terminals in the autonomous network; and a message aggregating device, configured to generate an aggregate message, the aggregate message containing a message and identifiers of multiple mobile terminals to which the message is to be sent, wherein the transmitting device is further configured to send the aggregate message generated by the message aggregating device to a base station of mobile terminals.
• In still another embodiment, a method for message processing in a base station of wireless communication network includes receiving a message frame from a mobile terminal; if the payload of the received message frame is a fragment message, assembling the fragment message and other fragment messages belonging to the same series as the fragment message into an aggregate message; disassembling the aggregate message in the payload of the received message frame or obtained by assembling the fragment message to generate multiple standard downlink frames each containing a message and a target mobile terminal identifier, and sending the message to the mobile terminal corresponding to each target mobile terminal identifier.
BRIEF DESCRIPTION OF THE DRAWINGS
• The features, advantages and other aspects of the various embodiments of the disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereon, by way of illustration, but non-limiting examples, the embodiments of the disclosure are illustrated. In the accompanying drawings:
• FIG. 1 shows a schematic diagram of a wireless communication network in which various embodiments of the disclosure may be applied;
• FIG. 2 shows a flow chart of a method in accordance with one embodiment of the disclosure;
• FIGS. 3A and 3B illustratively present the format of the aggregate message used in the method in accordance with one embodiment of the disclosure;
• FIGS. 4A and 4B illustratively present the format of the fragment message used in the method in accordance with one embodiment of the disclosure;
• FIG. 5 is a schematic presentation of flow chart of the method for treatment of message at the base station in accordance with one embodiment of the present disclosure;
• FIG. 6 is a block diagram of an apparatus in accordance with various embodiments of the disclosure; and
• FIG. 7 shows an exemplary computer system which is applicable to implement the embodiments of the disclosure.
DETAILED DESCRIPTION
• The flowcharts and blocks in the figures illustrate the system, methods, as well as architecture, functions and operations executable by a computer program product according to embodiments of the present disclosure. In this regard, each block in the flowcharts or block may represent a module, a program segment, or a part of code, which contains one or more executable instructions for performing specified logic functions. It should be noted that, in some alternative implementations, the functions noted in the blocks may also occur in a sequence different from what is noted in the drawings. For example, two blocks shown consecutively may be performed in parallel substantially or in an inverse order. This depends on relevant functions. It should also be noted that each block in the block diagrams and/or flowcharts and a combination of blocks in the block diagrams and/or flowcharts may be implemented by a dedicated hardware-based system for performing specified functions or operations or by a combination of dedicated hardware and computer instructions.
• Hereinafter, the principle and spirit of the present disclosure will be described with reference to various exemplary embodiments. It should be understood that provision of these embodiments is only to enable those skilled in the art to better understand and further implement the present disclosure, not intended for limiting the scope of the present disclosure in any manner.
• In the following, various embodiments of the disclosure are described in detail with reference to accompanying drawings. For purpose of easy description and content consistency, in the following detailed description, the SMS will be taken as an example of short piece data service and the mobile phone will be taken as an example of smart mobile terminal/device. However, the disclosure is obviously not limited to that. Therefore, due to the need of the context in the specification, the term “mobile terminal” is sometimes used to represent “mobile phone”, and vice versa.
• FIG. 1 is a schematic diagram of awireless communication network100 in which various embodiments of the disclosure may be implemented. As shown inFIG. 1, there are several mobile terminals (such as mobile phones)111-118, a base station BS and anautonomous network101.
• The mobile terminals111-118 and the base station BS are a part of thewireless communication network100. The mobile terminals and the base station communicate with an assigned wireless frequency band. When the mobile terminals transmit messages to each other via the base station, a source mobile terminal that originates a message would send an up-link frame (UL-frame) comprising a part of frame header and a part of frame content via the up link to the base station BS. The base station BS sends a down-link frame (DL-frame) via the down link to a target mobile terminal that received the message. Specific details such as coding, sending, receiving, decoding of the UL-frame and the DL-frame, are known in the art and thus a detailed description of the same is omitted here.
• It is noted that although only eight mobile terminals are shown inFIG. 1, it should be understood that the base station BS may be able to manage additional mobile terminals than are illustrated inFIG. 1.
• FIG. 1 also illustrates that amobile terminal114 is adjacent to a wireless access point (AP). Themobile terminal114 having a WiFi function may establish a stable connection with external networks via the wireless access point.
• FIG. 1 also shows that mobile terminals111-115 are within coverage of theautonomous network101. Theautonomous network101 is an independent wireless communication network providing end-to-end route of any pair of nodes within the network. The mobile terminals111-115, as network nodes, are able to identify adjacent mobile terminals and effectively complete the grouping of multi-hop wireless network in self-organized manner. Examples of the implementation of the autonomous network include such techniques as PAN (Personal Area Network), IEEE 802.11 G Standard, Bluetooth and so on.
• Theautonomous network101 is a social relation based autonomous network (SAN). In such an autonomous network, mobile terminal users have some social relationships with each other, such as friends, colleagues, relations, club members and so on. Users may register with, for example, a social relationship server (SRS) providing social relationship registration service and establish various social relationships among themselves. The social relationship server SRS may also establish and save such social relationships automatically with such information as the communications record of the users, and provide query. In SAN, the short message route in the network layer is determined according to social relationships. WLAN or Bluetooth is taken as the Media Access Control Layer protocol for performing the transmission instruction issued by the Network Layer, so that end-to-end multi-hop transmission of SMS data may be realized. The mobile terminals in theautonomous network101 may communicate with each other wirelessly via a connection channel provided by the autonomous network. For example, mobile terminals111-115 may realize short message communication with each other by the “Bluetooth” function.
• As shown inFIG. 1, at some point of time, there is a connection channel between themobile terminal111 and112, as well as connection channels between themobile terminal114 and111,112,113 and115.
• A SAN network list may be used to store identification information of the mobile terminals in the SAN, such as a mobile phone number. For example, assuming the phone numbers of themobile terminals111,112,113,114 and115 in the SAN ofFIG. 1 are A1, A2, A3, A4 and A5 respectively, then the SAN network list may be {A1,A2,A3,A4,A5}.
• Furthermore, the SAN network list may take the form of an adjacency list for representing connection relationships among mobile terminals, as the following:
• A1:A2, A4
• A2:A4
• A3:A4
• A4:A1, A2, A3, A4, A5
• A5, A4
• Wherein, for example, “A1:A2, A4” denotes that themobile terminal111 is adjacent to themobile terminal112 and114 respectively, “A4:A1, A2, A3, A4, A5” denotes that themobile terminal114 is adjacent to themobile terminal111,112,113,114 and115 respectively.
• Generally speaking, the mobile terminals in theautonomous network SAN101 have different capabilities. The mobile terminals with relatively strong capability generally have following one or more capabilities, including: a relatively strong electric power endurance capability, such as having relatively adequate battery charge or having access to active power supply; a relatively strong processing capability, such as large storage, rapid in computing speed; having well established wireless connection with surrounding mobile terminals, and capable of realizing relatively stable wireless data transmission with surrounding mobile terminals; and a capability of establishing stable connection with wireless network external to the SAN.
• As shown inFIG. 1, themobile terminal114 is a smart mobile device, such as notebook computer. Themobile terminal114 is connected to an outer power supply and can establish stable connection with wireless communication network external to theSAN101 via a wireless access point AP. It is the mobile terminal with stronger capability in thepresent SAN101.
• In practical implementations, other or more capability evaluation items may be set and a capability evaluation function Q may be used to quantify the capability of the mobile terminal.
• The mobile terminal with stronger capability may become the relay device when other mobile terminals in the autonomous network are transmitting messages. There might be multiple mobile terminals qualified for acting as relay devices, one of which being the master relay device. The communication connections among the multiple relay devices have hierarchical relations like the tree structure, for example.
• In the following, a method of the disclosure for group messaging at a mobile terminal in the autonomous network will be described by way of example.FIG. 2 is a flow chart of the method in accordance with one embodiment of the disclosure.
• As shown in the figure, inblock210, themobile terminal114 acquires a message MSG and the identifiers of multiple target mobile terminals to which the message is to be sent. In other words, themobile terminal114 acquires a message MSG and a list of target identifiers that contains the identifiers of multiple mobile terminals to which the message is to be sent.
• According to one embodiment of the disclosure, themobile terminal114 acquires the message and the identifiers of multiple target mobile terminals based on a user's input. To facilitate description, the identifiers of target mobile terminals are also referred to as “target identifiers” below. Assuming the above list of target identifiers is <A3, A5, A6, A7, A8>, the target identifiers contained in the list are respectively the identifiers of themobile terminal113,115,116,117 and118. For example, “A3” denotes themobile terminal113. If themobile terminal113 is a mobile phone, then “A3” could be a phone number.
• Inblock220, the message is transmitted via the autonomous network to any mobile terminal of the multiple mobile terminals that is located in the autonomous network, and the identifier of the mobile terminal is removed from the list of target identifiers to obtain an updated list of target identifiers. In other words, for one or more mobile terminals corresponding to target identifiers that are located in theautonomous network101, the message is transmitted via theautonomous network101 to the one or more mobile terminals and the identifiers of the one or more mobile terminals are removed from the list of target identifiers.
• For example, themobile terminal113 corresponding to “A3” is located in theautonomous network101, so themobile terminal114 transmits the message MSG to themobile terminal113 via theautonomous network101, and removes A3 from the list of target identifiers. Similarly, themobile terminal115 corresponding to “A5” is located in theautonomous network101, so themobile terminal114 transmits the message MSG to themobile terminal115 via theautonomous network101, and removes “A5” from the list of target identifiers. The message transmission frommobile terminal114 to themobile terminals113 and115 may be implemented by Bluetooth technology, for example.
• According to one embodiment of the disclosure, block220 may first detect whether mobile terminals corresponding to the acquired multiple target identifiers are located in theautonomous network101.
• According to one embodiment of the disclosure, themobile terminal114 may detect whether a mobile terminal is located in the autonomous network according to the SAN network list as described above.
• If a certain mobile terminal is located in the autonomous network, then the message is transmitted to the mobile terminal via theautonomous network101.
• As a result ofblock220, the content of target identifier list is updated to be <A6, A7, A8>.
• Inblock230, an aggregate message is generated, wherein the aggregate message contains the message and the updated list of target identifiers. In the present example, the aggregate message generated contains the message MSG and the target identifiers A6, A7 and A8.
• According to an embodiment of the disclosure, the aggregate message also contains information indicating the position of the message MSG and the updated target identifier list <A6, A7 and A8> in the aggregate message.
• With reference toFIG. 3A, the format of an aggregate message is described below.FIG. 3A illustrates the format of aggregate message in accordance with an embodiment of the present disclosure. As shown in the figure, theaggregate message300 includes anaggregate header310 and anaggregate body320, wherein the aggregate body includes amessage content321 and anidentifier list322.
• As shown in the figure, theaggregate header310 is 4 (four) characters in length, which comprises:
• Bit0:message indicator311, indicating aggregate message if the value of the bit is 1, indicating fragment message if the value is 0;
• Bits1-6:message type312, indicating a non-standard SMS frame if the value is “111111”;
• Bits7-18: length ofaggregate body313, the value of which indicates the length ofaggregate body320 ofaggregate message300, the unit of the length being character; and
• Bits19-29:identifier position314, the value of which indicates the starting position of thetarget identifier list322 in theaggregate message300.
• Themessage content321 includes the content to be sent by group messaging, for example MSG.
• Theidentifier list322 comprises all the target identifiers in the target identifier list. Each target identifier in theidentifier list322 occupies a fixed length, or, target identifiers are separated by a specific separator between them.
• With such a format, the starting position of thetarget identifier list322 in the aggregate message may be determined according to the content of theidentifier position314. Then the position of each of target identifiers may be further determined according to the fixed length or the separator for the target identifier. The position of the message MSG can be determined according to the length of theaggregate header310 and thetarget identifier position314.
• FIG. 3B is a schematic presentation of an aggregate message. As shown in the figure, anaggregate message301 includes anaggregate header310 and anaggregate body320. The aggregate body further comprises a message MSG (321) to be sent by group messaging and identifiers (322) of target mobile terminals. Here, it is assumed that targetmobile terminal116,117 and118 are mobile phones and, for better description, the phone numbers “623456789”,“723456789” and“823456789” are also used below to represent their respective identifiers A6, A7 and A8. The phone numbers are separated by the separator “;”.
• Those skilled in the art shall appreciate that, in practice, the length and content of theaggregate header310 may be set according to requirements. Not only may the content and position of themessage indicator311, themessage type312, thepayload length313 and theidentifier position314 be adjusted, additional information may also be included into the aggregate header.
• According to one embodiment of the disclosure, theaggregate header310 may further contain the identifier of the source mobile terminal originating the group messaging of the message. Thus, the base station BS may determine that the message MSG is initially originated from the source mobile terminal represented by the identifier.
• Referring again toFIG. 2, indecision block240, it is determined whether the length of the aggregate message exceeds a pre-defined threshold. Here, the pre-defined threshold means a length threshold of the payload of message frame transmitted by the mobile terminal to the base station BS. A UL-frame, sent by the mobile terminal to the base station BS via the up-link, is the basic unit of transmission in wireless transmission channels and consists of a frame header and a payload with a certain length limitation. For example, the length threshold of the payload is 140 bytes or 70 characters for a UL-frame of SMS message channel. In general, the payload comprises the original data to be transmitted, and the frame header comprises the size, the target address or identifier, and the parity bit of the original data. If the aggregate message is taken as the payload of the UL-frame, the length of the aggregate message must not exceed the threshold of length of payload.
• If the length of theaggregate message300 does not exceed the pre-defined threshold, theaggregate message300 is sent to a base station BS inblock250. Then, the process ends.
• After the base station BS receives the UL-frame whose payload is theaggregate message300, it will perform corresponding parsing. This further described below in conjunction withFIG. 5.
• From the foregoing, it will be seen that if the length of the aggregate message does not exceed the pre-defined threshold, the aggregate message only needs to be transmitted from themobile terminal114 to the base station BS once, instead of three times, in order to sent the message to three targetmobile terminals116,117 and118. Thus the occupation of air interface bandwidth between the terminal and the base station could be reduced.
• If the length of the aggregate message exceeds the pre-defined threshold, then the process proceeds to block260, where the aggregate message is divided into multiple fragment messages.
• For example, assuming that the pre-defined threshold is 70 characters, then theaggregate message300 is divided into multiple fragment messages to so that the fragment messages, except the last one, are each 70 characters in length.
• With reference toFIG. 4A, the format of the fragment message is described below.FIG. 4A illustratively shows the format of afragment message400 in accordance with an embodiment of the disclosure. As shown in the figure, thefragment message400 contains afragment header410 and afragment body420. They are respectively 2 characters (characters 0-1) and 68 characters (characters 2-69) in length.
• As shown in the figure, the length of thefragment header410 is 2 characters, which includes Message indicator411 (bit0), indicating fragment message if the value of the bit is 0 (zero), and message type indicator412 (bits1-6), used for distinguishing the fragment message of the disclosure from the standard SMS message. For example, a value of “111111” is used to indicate that the current frame is a fragment message.
• End-of-fragment indicator413 (bit7) is used for indicating whether the fragment message is the last one of a series of fragment messages. For example, the value of End-of-fragment indicator may be set to “1” to indicate the fragment message is the last one.
• Message identifier414 (bits8-10) is a field used for identifying different aggregate messages. For example, when themobile terminal114 sends a first aggregate message to the base station BS, the value of the field is “000” (binary). The value of the field will be increased by degrees along with the increase of the number of aggregate messages sent by themobile terminal114 to the base station BS. When themobile terminal114 sends the eighth aggregate message to the base station BS, the value of the field is “111”.
• Serial number415 (bits11-15) is a field used for identifying different fragment messages within the same aggregate message. The field is valid inside the same aggregate message. The initial value is “00000” (binary) corresponding to a first fragment message and the value will be increased by degrees as the number of fragment messages is increased, up to a maximum value of “11111”. So the field can identify 32 fragment messages within the same aggregate message.
• Thefragment body420 is filled with the data obtained by sequentially splitting theaggregate message300 including theaggregate header310.
• Following the example shown inFIG. 3B, and assuming that the length of theaggregate message300 is greater than 70 but not greater than 136, then theaggregate message300 is divided into two fragment messages. The fragment body of the first fragment message contains the content of the first section starting from the starting position of theaggregate message300, the length of the content of the first section being 68 characters. The payload of the second fragment message is the content after the first section content in the payload of theaggregate message301. The length of the content is no more than 68 characters since the length of theaggregate message300 is not greater than 136 characters.
• As shown inFIG. 4B, the series of fragment messages generated by dividing theaggregate message301 include twofragment messages401 and402. Thefragment body420 of thefirst fragment message401 contains theaggregate header310 of theaggregate message301 as well as the message content (321) and a part of the identifier list (322) inaggregate body320. In the present example, the content of this part in the target identifier list is “623456789; 723456”.
• Thefragment body420 of thefragment message402 contains the remaining part of target identifier list (322), i.e., “789; 823456789”. Besides, the value of the End-of-fragment indicator413 in thefragment header410 of thefragment message402 is set to 1, because thefragment message402 is the last one in the generated series of fragment messages.
• Returning toFIG. 2, inblock270 followingblock260, the multiple fragment messages are sent to the base station BS. After the fragment messages are sent, the process ends. For example, inblock270, thefragment messages401 and402 are sent to the base station BS. The above description is an exemplary process of group messaging with themobile terminal114 acting as the originating mobile terminal.
• Next, it is assumed that the user of a certainmobile terminal111 intends to send a message with the content of MSG by group messaging tomobile terminals113,115,116,117 and118. According to one embodiment of the disclosure, themobile terminal111 may first select a relay device from multiple mobile terminals in the social relation basedautonomous network SAN101. Generally speaking, the relay device that may be selected by the mobile terminal is a mobile terminal with relatively strong capability in theautonomous network SAN101.
• The below mechanism may be followed in determining a mobile terminal with relatively strong capability in theautonomous network SAN101 to act as the relay device. When a mobile terminal starts, it will firstly launch broadcast information to search whether or not there is existed a SAN. If there is existed a SAN, the mobile terminal would launch a request for joining in the SAN to the mobile terminals in the SAN. The other mobile terminals in the SAN would learn the joining of the new mobile terminal and update respective adjacency lists. Otherwise, the mobile terminal would set up a SAN by itself, become a number of the SAN and automatically become the master relay device, with the value of capability assessment function Q being q.
• The addresses or identifiers of other members in the SAN are acquired, and comparison is made between the value q′ of its own capability assessment function Q to the value q of the capability assessment function Q of the current master relay device. If the difference q′−q is greater than a pre-defined threshold, the current master relay device will be replaced by the mobile terminal.
• The mobile terminals in the SAN periodically report their own values of the capability assessment function Q to the master relay device. The master relay device maintains a list of nodes sorted according to values of Q of all mobile terminals within its scope coverage. And the node list is sent to the surrounding mobile terminals as a copy. At anytime, if there is a mobile terminal, the difference of whose value q′ of capability assessment function Q of a mobile terminal and the value q of the capability assessment function Q of the current master relay device is greater than a pre-defined threshold, the mobile phone will replace the current master relay device.
• When a mobile terminal normally exits from the SAN, it informs other surrounding mobile terminals to remove it from their route tables and informs the master relay device to remove it from the node list. The master relay device sends maintenance information to other mobile terminals periodically. If no reply is received from a certain mobile terminal upon a time-out, it indicates that the mobile terminal exits abnormally. Then the master relay device will broadcast to all mobile terminals in the SAN informing them to remove the exit mobile terminal from their route tables, and remove it from the node list.
• If the master relay device normally exits from the SAN, it selects a mobile terminal with the highest Q value according to the node list, requests it to become the master relay device, and transfers management information to it. All mobile terminals in the SAN are notified of the updating of the master relay device. If the master relay device exits from SAN abnormally, other mobile terminal will not receive maintenance information from the master relay device upon a time-out. The relay device with a copy of the node list will select the mobile terminal with the highest Q value to be the master relay device according to the node list.
• Assuming the relay device selected by themobile terminal111 is themobile terminal114, themobile terminal111 will transmit, via theSAN101, the message MSG and the target identifier list <A3,A5,A6,A7,A8> to themobile terminal114 acting as the relay device.
• Referring again toFIG. 2, inblock210, themobile terminal114 acquires a message and a target identifier list. Under the circumstance that themobile terminal114 is selected as the relay device by themobile terminal111, themobile terminal114 will receive the message MSG and the target identifier list <A3,A5,A6,A7,A8> transmitted from themobile terminal111 via theautonomous network101.
• Themobile terminal114 may proceed withBlock220 to270 so as to complete the processing of the message MSG and the target identifier list <A3,A5,A6,A7,A8>. The details are not repeatedly described herein.
• According to one embodiment of the disclosure, in this case, inblock230 of generating aggregate message, themobile terminal114 also sets the identifier of the sourcemobile terminal111 originating the group messaging in the aggregate header of the aggregate message.
• According to one embodiment of the disclosure, prior to transmitting the message MSG and the target identifier list <A3,A5,A6,A7,A8> to themobile terminal114, themobile terminal111 may conduct aggregating processing of the message MSG and the target identifier list <A3,A5,A6,A7,A8> to generate an aggregate message. Then the aggregate message is transmitted to themobile terminal114. Themobile terminal111 may conduct message aggregation with respect to the message MSG and the target identifier list <A3,A5,A6,A7,A8> in the same way as generating aggregate message shown inFIG. 2 (Block230) and describe in the above. The details are not repeatedly described here.
• In this case, what themobile terminal114 acquires from themobile terminal111 is the aggregate message containing the message MSG and the target identifier list <A3,A5,A6,A7,A8>.
• According to one embodiment of the disclosure, themobile terminal114 that acquires the aggregate message containing the message MSG and the target identifier list <A3,A5,A6,A7,A8> from themobile terminal111 may obtain the message and each target identifier therein by parsing the aggregate message. Specifically, as described above in conjunction withFIGS. 3A and 3B, the aggregate header of the aggregate message contains information indicating the position of the message and the target identifiers in the aggregate message. According to the information, the message MSG and each target identifier may be extracted from the aggregate message. Then themobile terminal114 proceeds withblocks220 to270 so as to complete the processing of the message MSG and the target identifier list <A3,A5,A6,A7,A8>. The details are not repeatedly described herein.
• In the above two embodiments, the sourcemobile terminal114, as well as the sourcemobile terminal111, sends message to five target mobile terminals by group messaging. But, themobile terminal114 only needs to send the message MSG to threemobile terminal116,117 and118 via the base station BS.
• Furthermore, although themobile terminal114 needs to send message to the three mobile terminals via the base station BS, themobile terminal114 merely needs to transmit data to the base station BS twice. This shows that, by applying the embodiments of the disclosure, the times of signaling interaction and the up-link communications traffic between the mobile terminal and the base station may be reduced, thereby reducing the occupation of wireless bandwidth of the base station. In general, the more the numbers of identifiers for group messaging, the shorter the message MSG is.
• The method for group messaging at a mobile terminal in the autonomous network is described above. Those skilled in the art shall appreciate the above method may be implemented by configuring a proxy at the mobile terminal.
• According to the same inventive concept, the disclosure also provides a proxy apparatus for group messaging at a mobile terminal in the autonomous network.FIG. 6 illustratively shows the block diagram of an apparatus in accordance with various embodiments of the disclosure.
• As shown in the figure, according to an embodiment of the disclosure, aproxy apparatus600 for group messaging MSG at mobile terminal (111 . . .117) in anautonomous network101 comprises: an acquiringdevice610 which is configured to acquire a message and the identifiers of multiple mobile terminals to which the message is to be sent; atransmitting device620 which is configured to transmit a message via the autonomous network to one or more mobile terminals in the autonomous network; amessage aggregating device630 which is configured to generate anaggregate message300, the aggregate message containing the message and the identifiers of multiple mobile terminals to which the message is to be sent, wherein the transmittingdevice620 is further configured to send the aggregate message generated by themessage aggregating device630 to a base station BS of mobile terminals.
• According to one embodiment of the disclosure, the transmittingdevice620 is further configured to transmit theaggregate message300 generated bymessage aggregating device630 to one or more mobile terminals in theautonomous network101.
• According to one embodiment of the disclosure, theproxy apparatus600 further comprises amessage splitting device640 which is configured to divide one aggregate message300(301) into multiple fragment messages400(401,402), wherein the transmittingdevice620 is further configured to send the fragment messages400(401,402) generated by themessage splitting device640 to a base station BS of mobile terminals.
• According to one embodiment of the disclosure, theproxy apparatus600 further comprises adisassembling device650 which is configured to extract the message and each of the identifiers of multiple mobile terminals from the aggregate message containing the message and the identifiers of the multiple mobile terminals to which the message is to be sent.
• According to one embodiment of the disclosure, theproxy apparatus600 further comprises a detecting device which is configured to detect whether the mobile terminals corresponding to the identifier of multiple mobile terminal acquired by the acquiringdevice610 are located in the autonomous network.
• According to one embodiment of the disclosure, the detectingdevice660 may detect whether a mobile terminal is located in the autonomous network according to the SAN network list described above.
• The functions of various devices contained in theabove proxy apparatus600 and details of their implementation have been fully elaborated in previous description of various embodiments of the inventive method for group messaging at a mobile terminal in the autonomous network given in conjunction with drawings; thus they will not be repeatedly described here.
• Various embodiments of the method and apparatus for group messaging at a mobile terminal in the autonomous network have been described in above. From the above description it can be known that the payload of a UL frame transmitted from the mobile terminal to the base station may comprises an aggregate message or a fragment message. Accordingly, the disclosure also provides a method for processing a message containing the aggregate message and the fragment message at the base station BS.
• Generally speaking, the disclosure provides a method for message processing in a base station of wireless communication network, comprising: receiving a message frame from a mobile terminal; if the payload of the received message frame is a fragment message, then assembling the fragment message and other fragment messages belonging to the same series as the fragment message into an aggregate message; disassemble the aggregate message in the payload of the received message frame or obtained by assembling the fragment message to generate multiple standard downlink frames each containing a message and a target mobile terminal identifier, and sending the message to the mobile terminal corresponding to each target mobile terminal identifier.
• Referring toFIG. 5, there in shown a flow chart of a method for processing a message containing the aggregate message and the fragment message at the base station BS in accordance with an embodiment of the disclosure. Inblock510, a message frame is received, which consists of a frame header and a payload. Indecision block520, it is determined whether or not the payload of received message frame is a standard SMS message.
• As shown inFIGS. 3A and 4A, according to one embodiment of the disclosure, bits1-6 (312,412) of the aggregate message and the fragment message are taken as the “message type” indicator for distinguishing a standard UL frame from an aggregate message or a fragment message of the disclosure. For example, it may be prescribed that, for aggregate messages and fragment messages, the value of the bits is “111111”. So, by reading the content of bits1-6 in the payload of a message frame, it can be determined whether or not the payload is a standard SMS message.
• If it is determined indecision block520 that the payload is a standard SMS message, then, inblock530, the SMS message is forwarded in a standard manner. Then the processing of the frame ends. On the other hand, if it is determined indecision block520 that the payload is not a standard SMS message, then, indecision block540, it is determined whether the payload is an aggregate message. As described above in conjunction withFIG. 3A andFIG. 4A, the aggregate message and the fragment message may be distinguished by the setting a message indicator bit (311,411). For example, the value of the message indicator bit of the aggregate message is “1” and the value of the message indicator bit of the fragment message is “0”. Therefore, whether the payload is an aggregate message can be determined by reading the content ofbit0 in the payload of the received message frame.
• If, indecision block540, it is determined that the payload is an aggregate message is determined, the message frame is divided into one or more standard SMS message frames inblock542. Then the process turns to block530, where the SMS message is forwarded in a standard manner. Then the processing of the frame ends.
• As described above in conjunction withFIG. 3A andFIG. 3B, an aggregate message includes information for indicating the position of message and target identifier list in the aggregate message. Therefore, inblock542, each target identifier, i.e., the identifier of the mobile terminal to which the message is to be sent, such as mobile phone number, may be extracted from the aggregate message. Each target identifier is respectively combined with the message to obtain one or more standard SMS message frames.
• If, indecision block540, it is determined that the payload is not an aggregate message, then indecision block550, it is determined whether the payload is fragment message. As described above, in the case thatmessage indicator bits311 and411 are used for distinguishing aggregate message from fragment message, the determination operations in decision blocks540 and550 may be merged as one operation.
• If, indecision block550, it is determined that the payload is fragment message, the process turns todecision block552. Indecision block552, it is determined whether the payload is the last fragment message in a series of fragment messages. As described in the above in conjunction withFIG. 4A, whether the payload is the last fragment message in a series of fragment messages may be determined according to the end-of-fragment indicator bit413.
• If it is determined that the payload is not the last fragment message, the process turns to block554. Inblock554, the received fragment message is stored. Then inblock556, the next fragment message is received. If the payload is the last fragment message is determined, then the process turns to block560.
• InBlock560, the fragment message and other fragment messages belonging to the same series as the fragment messages are assembled into an aggregate message. The other fragment messages belonging to the same series as the fragment message are those that are inblock554. As descried above in conjunction withFIG. 4A, the “message identifier”field414 in a fragment message contains the identifier of the aggregate message and the “serial number”field415 contains the serial number of the fragment message. Therefore, block560 may proceed in the following manner: extracting the payload of each fragment message having the same content of the “message identifier”field414, and then combining each of the extracted payloads sequentially in the order of the serial number in the “serial number”field415 to obtain a completed aggregate message.
• For example, the method of assembling thefragment message401 and402 shown inFIG. 4B is to combine the splittingbody420 in thefragment message401 and thefragment body420 in thefragment message402 in sequence. Since thefragment body420 of thefirst fragment message401 contains theaggregate header310 ofaggregate message301, the sequential combination results in a completedaggregate message301 as shown inFIG. 3B.
• Afterblock560, the process proceeds toblocks542 and530. Then the process ends. As a result, the base station BS sends the message MSG tomobile terminals116,117 and118 via downlink.
• Various embodiments of the disclosure have been described in the above. It should be noted that the above depiction is only exemplary, not intended for limiting the present disclosure. In other embodiments of the present disclosure, the method may have more, or less, or different blocks, and numbering the blocks is only for making the depiction more concise and much clearer, but not for stringently limiting the sequence between each blocks, and the sequence of blocks may be different from the depiction.
• Therefore, in some embodiments, the above one or more optional blocks may be omitted. Specific embodiment of each block may be different from the depiction. All these variations fall within the spirit and scope of the present disclosure.
• The present disclosure may adopt a form of hardware embodiment, software embodiment or an embodiment comprising hardware components and software components. In a preferred embodiment, the present disclosure is implemented as software, including, without limitation to, firmware, resident software, micro-code, etc.
• Moreover, the present disclosure may be implemented as a computer program product usable from computers or accessible by computer-readable media that provide program code for use by or in connection with a computer or any instruction executing system. For the purpose of description, a computer-usable or computer-readable medium may be any tangible means that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device.
• The medium may be an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system (apparatus or device), or propagation medium. Examples of the computer-readable medium would include the following: a semiconductor or solid storage device, a magnetic tape, a portable computer diskette, a random access memory (RAM), a read-only memory (ROM), a hard disk, and an optical disk. Examples of the current optical disk include a compact disk read-only memory (CD-ROM), compact disk-read/write (CR-ROM), and DVD.
• FIG. 7 shows anexemplary computer system700 which is applicable to implement the embodiments of the present disclosure. As shown inFIG. 7, thecomputer system700 may include: CPU (Central Process Unit)701, RAM (Random Access Memory)702, ROM (Read Only Memory)703,System Bus704,Hard Drive Controller705,Keyboard Controller706,Serial Interface Controller707, Parallel Interface Controller108, Display Controller109,Hard Drive710,Keyboard711, SerialPeripheral Equipment712, ParallelPeripheral Equipment713 andDisplay714. Among above devices,CPU701,RAM702,ROM703,Hard Drive Controller705,Keyboard Controller706,Serial Interface Controller707,Parallel Interface Controller708 andDisplay Controller709 are coupled to theSystem Bus704.Hard Drive710 is coupled toHard Drive Controller705.Keyboard711 is coupled toKeyboard Controller706. SerialPeripheral Equipment712 is coupled toSerial Interface Controller707. ParallelPeripheral Equipment713 is coupled to ParallelInterface Controller708. And,Display714 is coupled toDisplay Controller709. It should be understood that the structure as shown inFIG. 7 is only for the exemplary purpose rather than any limitation to the present disclosure. In some cases, some devices may be added to or removed from thecomputer system100 based on specific situations.
• A data processing system adapted for storing or executing program code would include at least one processor that is coupled to a memory element directly or via a system bus. The memory element may include a local memory usable during actually executing the program code, a mass memory, and a cache that provides temporary storage for at least one portion of program code so as to decrease the number of times for retrieving code from the mass memory during execution.
• An Input/Output or I/O device (including, without limitation to, a keyboard, a display, a pointing device, etc.) may be coupled to the system directly or via an intermediate I/O controller.
• A network adapter may also be coupled to the system such that the data processing system can be coupled to other data processing systems, remote printers or storage devices via an intermediate private or public network. A modem, a cable modem, and an Ethernet card are merely examples of a currently usable network adapter.
• In view of the above-mentioned problems, one embodiment of the disclosure is to reduce communications traffic and the number of signaling interactions between the mobile terminal and the base station for the service of group messaging of small piece data by mobile terminals (such as SMS group messaging) in wireless access network.
• By applying various embodiments of the disclosure, on one hand, by using social relation based autonomous network to transmit messages to a part of mobile terminals as target of group messaging, redundant traffic between the mobile terminal and the base station could be eliminated, thereby reduce the required communications traffic through the base station; on the other hand, by optimized treatment of the messages to be transmitted via the base station (such as by message aggregating, fragmenting, assembling and disassembling), the communications traffic transmitted through the base station could also be reduced.
• It is to be understood from the foregoing description that modifications and alterations may be made to the respective embodiments of the present disclosure without departing from the true spirit of the present disclosure. The description in the present specification is intended to be illustrative and not limiting. The scope of the present disclosure is limited by the appended claims only.

Claims (6)

1. A proxy apparatus for group messaging at a mobile terminal in the autonomous network, comprising:

an acquiring device, configured to acquire a message and the identifiers of multiple mobile terminals to which the message is to be sent;

a transmitting device, configured to transmit a message via the autonomous network to one or more mobile terminals in the autonomous network; and

a message aggregating device, configured to generate an aggregate message, the aggregate message containing a message and identifiers of multiple mobile terminals to which the message is to be sent;

wherein the transmitting device is further configured to send the aggregate message generated by the message aggregating device to a base station of mobile terminals.

2. The proxy apparatus ofclaim 1, wherein the transmitting device is further configured to transmit the aggregate message generated by the message aggregating device to one or more mobile terminals in the autonomous network.

3. The proxy apparatus ofclaim 1, further comprising:

a message splitting device, configured to divide an aggregate message into multiple fragment messages;

wherein the transmitting device is further configured to send the fragment messages generated by the message splitting device to a base station of mobile terminals.

4. The proxy apparatus ofclaim 2, further comprising:

a disassembling device, configured to extract a message and each of the identifiers of multiple mobile terminals from the aggregate message containing the message and the identifiers of the multiple mobile terminals to which the message is to be sent.

5. The proxy apparatus ofclaim 1, further comprising:

a detecting device, configured to detect whether the mobile terminals corresponding to the identifiers of the multiple mobile terminals acquired by the acquiring device are located in the autonomous network.

6. The proxy apparatus ofclaim 5, wherein the detecting device is further configured to detect whether the mobile terminals are located in the autonomous network according to a social relation based autonomous network list.

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