CN100502577C - Method for PHS system to broadcast short message, short message structure and its system - Google Patents
Method for PHS system to broadcast short message, short message structure and its system Download PDFInfo
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- CN100502577C CN100502577C CNB2004100528926A CN200410052892A CN100502577C CN 100502577 C CN100502577 C CN 100502577C CN B2004100528926 A CNB2004100528926 A CN B2004100528926A CN 200410052892 A CN200410052892 A CN 200410052892A CN 100502577 C CN100502577 C CN 100502577C
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Abstract
A short message broadcast method by PHS system includes the following steps: A broad-cast short message entity module segments the broadcast short message and images them to a data structure, a piece of complete message content can be loaded by several data structures and the process entity module designs parameters in each data structure and broadcasts it to the terminals. The module judges if the short message is delivered, if so, the base station sends the next piece, if not, the station continues to deliver the data structure of the short message, which eliminates limit to broad cast short messages by PHS system and increases the throughput of the system.
Description
Technical field
The present invention relates to the communications field, relate in particular to method, short message structure and the system thereof of PHS system broadcasts short message.
Background technology
PHS system based on PHS (Personal Handy phone Systems, personal portable telephone system) air interface has surpassed 3,000 ten thousand users in China at present, and estimating very soon will be above 5,000 ten thousand user.In order to satisfy user's needs, professional increase also is an important ring.Short message is the most important value-added service of mobile communication system, and the PHS system is no exception.Each operator has realized short message networking transprovincially at present, and the short message between the different operators is also in interconnected.Therefore, the traffic carrying capacity of short message will constantly rise.Article one, the general length of PHS system short message is 116 bytes, corresponding 58 Chinese characters.
That short message is divided into is point-to-point, mass-send and broadcast several classes.Broadcast SMS is good service propaganda means, has a wide range of applications.With GSM (Global System for MobileCommunications, Global Link) system compares, and PHS system short message lacks the Cell Broadcast CB mode, and broadcast SMS is still handled by the mode that sends SMS message one by one to terminal, not only efficient is low, brings very big time-delay.Because the PHS system is by TCH (TrafficChannel, Traffic Channel) send SMS message, the mode of this broadcast SMS has taken system resource in a large number, has not only influenced point-to-point short message, also can bring adverse influence, limit the short message throughput of PHS system to speech business.
The method that solves is that restriction sends broadcast SMS at present, and this obviously is the method for curing the symptoms, not the disease.
The PHS air interface utilizes BCCH (Broadcast Control Channel, Broadcast Control Channel) to come the broadcast system configuration information.This is the mode of the real broadcast message of PHS air interface.BCCH transmits three kinds of system messages, comprises SYS1 (System1, first system), SYS2 (System2, second system) and SYS3 (System3, tertiary system system) message.SYS1 (System 1, the first system) message that the PHS system broadcasts by BCCH, SYS2 (System 2, the second systems) message are to terminal transmitting system configuration information, and these system configuration informations are that all terminals can receive simultaneously.
As top the introduction, in fact only utilized two system message: SYS1 and the SYS2 of BCCH to terminal broadcast system configuration information.And in fact BCCH has defined three kinds of system messages, and therefore, tertiary system system message SYS3 leaves unused.And tertiary system system message has the characteristics similar with first, second system, that is to say what its institute's loaded information can be received simultaneously by all terminals.Defined SYS3 message owing in the PHS air interface, but do not used, therefore utilized this message that the PHS air interface is not had any influence, also can not bring influence the running that has the PHS system now.
Therefore, this broadcast mode being used for business information---broadcast SMS is exactly a starting point of the present invention.
Summary of the invention
The object of the present invention is to provide a kind of method of PHS system broadcasts short message,, can utilize the idle system broadcast SMS among the BCCH, satisfied the needs that the PHS communication system increases business function to overcome the deficiency that the PHS prior art can not broadcast SMS.
For achieving the above object, the invention provides a kind of method of PHS system broadcasts short message, may further comprise the steps: the broadcast SMS processing entities module in a. base station adds the broadcast SMS content of current transmission the information of message header and message ending, form a complete message body, and its segmentation is mapped in the data structure of corresponding message, a complete broadcast SMS content can be by some message data structure carryings; B. in the segmentation mapping process, the processing entities module is provided with the parameter in every message data structure, and it is broadcast on the terminal; C. the processing entities module is judged whether this broadcast SMS sends and is finished, and finishes if message sends, and the transmission of next bar broadcast SMS will be carried out in the base station; Do not finish if send, the data structure body of this broadcast SMS will be continued to send in the base station; D. after terminal received message, the parameter that is provided with according to the processing entities module received message header earlier, if there is not the information in the message header in the terminal, then next receives message content and message ending, finally receives a broadcast SMS.
Wherein, described data structure is the tertiary system system message in the Broadcast Control Channel.Described parameter comprises message body sequence number, message status and News Category indication information.The message body sequence number is that this broadcast SMS transmission of 0 expression finishes.
Broadcast SMS of the present invention can produce by short message service server.Short message service server is issued equipment of the core network with broadcast SMS, issues relevant base station controller by equipment of the core network again, is sent to the base station by base station controller.
After terminal of the present invention receives tertiary system system message, terminal is preserved a period of time with the message identifier of paid-in tertiary system system message, terminal will be received message identifier preservation 48 hours in the preferred embodiment, and the sign of the message identifier that will newly receive and preservation compares, if there be not the message identifier identical in the terminal, then next receive message content and message ending with the message identifier of newly receiving.
Another object of the present invention is to provide the short message structure that is used to broadcast in a kind of PHS system to match with the method for aforesaid broadcast SMS.
For achieving the above object, the invention provides the short message structure that is used to broadcast in a kind of PHS system, comprising: show this message be the content of the type of message of broadcast SMS, the same content sequence number that shows the message body of order when utilizing multiple messages, carrying broadcast SMS message body, show that message uses the News Category indication and the broadcast reception of the absolute timeslot number of the numbering of time slot, message status, differentiation message body each several part to guide.
Further, the described short message structure that is used for broadcasting is to utilize the tertiary system system message modification of Broadcast Control Channel to form.
Described type of message occupies the 1st byte in the tertiary system system message in the Broadcast Control Channel.
The sequence number of message body occupies the 2nd byte in the tertiary system system message in the Broadcast Control Channel.The sequence of the corresponding tertiary system system of message body sequence number message, the message body sequence number is a backward, terminal can find the beginning of next broadcast SMS according to the message body sequence number.
Message body occupies the 3rd～6 byte in the tertiary system system message in the Broadcast Control Channel.Message body is divided into three parts: message header, comprise the message content and the message ending of the particular content of broadcast SMS.Message header comprises the message-length part of length of message identifier part, expression message content and the character set part that the expression short message uses character set.Message identifier is 16 bits partly, and is unique in whole system; Message-length is a unit with 4 bytes, and its value equals the quantity of the tertiary system that this broadcast SMS uses system message.Message ending comprise CRC part, expression broadcast SMS date of shipping the timestamp part and represent the number of repetition part that also needs to send number of times of this broadcast SMS.CRC is 16 bits; Month, day respectively account for 4 bits in the timestamp.
The 7th byte in the tertiary system system message in the described Broadcast Control Channel is divided 3 parts, is followed successively by absolute timeslot number, message status and News Category indication from a high position to the low level.Message status transmits identifier, dissimilar broadcast SMS identifier differences, and message status can define 8 kinds of dissimilar broadcast SMSs at most.Only allow in the minimum time difference of dissimilar broadcast SMSs between two class broadcast SMSs to send one type broadcast SMS, and repeat to send.
The system of broadcast SMS in a kind of PHS system, comprise broadcast SMS processing entities module in the base station and the message identifier module in the terminal, broadcast SMS processing entities module adds the information of message header and message ending with the broadcast SMS content of current transmission and its segmentation is mapped in the data structure of corresponding message; The message identifier that message identifier module in the terminal is preserved and the contrast terminal is received.
Wherein, broadcast SMS processing entities module is provided with the parameter in every message data structure in the segmentation mapping process, and broadcasts these message in order by the base station; Broadcast SMS processing entities module is judged whether this broadcast SMS sends to finish after the message that sends a carrying broadcast SMS, finishes if message sends, and the transmission of next bar broadcast SMS will be carried out in the base station; Do not finish if send, the message of this broadcast SMS of carrying will be continued to send in the base station.
Message identifier module in the terminal is preserved a period of time with the message identifier of the message of paid-in carrying broadcast SMS, and the sign of the message identifier that will newly receive and preservation compares, if do not have the message identifier identical in the message identifier module in the terminal, then next receive message content and message ending with the message identifier of newly receiving.
Described broadcast SMS utilizes the tertiary system system message in the Broadcast Control Channel to send.
The present invention utilizes the idle message of PHS air interface, the content of the SYS3 of BCCH (BroadcastControl Channel, Broadcast Control Channel) broadcasting just (System3, tertiary system system) message bearing broadcast SMS.Defined SYS3 message owing in the PHS air interface, but do not used, therefore utilized this message that the PHS air interface is not had any influence, also can not bring influence the running that has the PHS system now.
The present invention adopts the method for broadcast SMS, needn't adopt the method that sends SMS message one by one, will no longer take TCH, thereby has exempted the restriction to broadcast SMS, has promoted the throughput of system.
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is the structure of SYS3 message in the PHS air interface;
Fig. 2 is the SYS3 message structure of carrying broadcast SMS;
Fig. 3 is the structure of message body.
Fig. 4 is the system configuration relevant with broadcast SMS.
Fig. 5 is the process of transmitting of the broadcast SMS of base station.
Embodiment
Relevant detailed description of the present invention and technology contents, existing as follows with regard to accompanying drawings: at first consult Fig. 1, in the PHS air interface structure of SYS3 message as shown in Figure 1, SYS3 message is made up of eight bytes, each byte has eight.Its first byte is set at 00001111 and shows that its type of message is a SYS3 message.Second to the 6th byte is the null byte of five reservations.The 7th byte is divided 3 parts, is followed successively by absolute timeslot number and accounts for two, m3 and account for three and three and keep bits from a high position to the low level.The News Category indication, wherein absolute timeslot number is the numbering that message is used time slot, and mi is a message status of distinguishing dissimilar broadcast SMSs, and i represents system, so the message status code of tertiary system system is m3; The 8th byte is that broadcast reception is guided.
The present invention to the improvement of this structure as shown in Figure 2.Wherein the 1st byte is a News Category, remains unchanged; The 2nd byte is defined as the sequence number of message body; The 3rd～6 byte is defined as the content of message body; The 7th byte is divided 3 parts, is followed successively by absolute timeslot number, m3 and News Category indication from a high position to the low level, and wherein absolute timeslot number is the numbering that message is used time slot, and News Category is designated as and defines content among the present invention; The 8th byte is that broadcast reception is guided, and remains unchanged.
Broadcast SMS has an identifier, dissimilar broadcast SMS identifier differences.Use m3 message status position to transmit identifier at present, m3 has three, therefore can define 8 kinds of dissimilar broadcast SMSs at most.
In order to guarantee that the user is unlikely to disturbed, system can define a kind of parameter T
Bsms(minimum time between the two class broadcast SMSs is poor). the T of dissimilar broadcast SMSs in preferred embodiment
BsmsBe made as 1 hour, like this at T
BsmsInterior system only can repeat to send same type broadcast SMS.T
BsmsAfter send new a kind of broadcast SMS again.
Owing to the content of these four byte bearer messages bodies of 3～6 bytes is only arranged, and the byte number of broadcast SMS is more, therefore a complete broadcast SMS generally needs a plurality of SYS3 message could carry transmission.The message body sequence number carries the sequence number ordering of a plurality of SYS3 message of same broadcast SMS by message body, thereby avoids a broadcast SMS to produce the confusion of content order in process of transmitting with regard to the sequence of corresponding SYS3 message.The message body sequence number is a backward, and terminal can find the beginning of next broadcast SMS according to the message body sequence number.
As shown in Figure 3, the content of carrying broadcast SMS in the message body, message body is divided into three parts: message header, message content and message ending.By being set, the News Category indication can distinguish this three parts.
Message identifier is 16 bits partly in the message header, and is unique in whole system.The user judges whether to need to receive this broadcast SMS by receiving message identifier, so the user need preserve the message identifier of the broadcast SMS that received in nearest 48 hours.
Message-length is the length of message content, is unit (just using the quantity of SYS3 message) with 1 byte.
Character set is indicated the character set that short message uses, and is identical with GSM (Global System forMobile Communications, global radio communication system) short message character set.
Message content is exactly the particular content of broadcast SMS.
CRC in the message ending (Cyclic Redundancy Check, cyclic redundancy check (CRC)) is 16 bits, and the method for employing is the 16 bit CRC computational methods that ITU-T (relevant criterion of Union of International Telecommunication) recommends, and the data of processing are message content.
Timestamp is the date of shipping (month, day respectively account for 4 bits) of broadcast SMS.
Number of repetition for this reason broadcast SMS also need to send number of times, terminal can go out a kind of transmitting time of broadcast SMS down according to this calculation of parameter.
According to top introduction as can be known, the bearer messages body is come in the space that SYS3 message can have nybble, and each nybble of message header and message ending, promptly respectively take a SYS3 message, per four bytes of message content take a SYS3 message, so just can calculate the bar number of the SYS3 message of a required use of broadcast SMS.The every 4.8s of SYS3 message sends once, and a broadcast SMS uses 258 SYS3 message (corresponding 512 Chinese characters or 1170 characters) at most, and the longest 1238.4s (20.5 minutes) broadcasts a short message.
The process of broadcast SMS as shown in Figure 4 in the system.Broadcast SMS can be by generating with the similar method of Previous System, as producing by short message service server.Short message service server is issued equipment of the core network with broadcast SMS, issues relevant base station controller by equipment of the core network again, is sent to the base station by base station controller, gives terminal by base station broadcast at last.
The flow process that broadcast SMS is handled in the base station as shown in Figure 5, new broadcast SMS is received in the base station, and it is added the broadcast SMS formation, unifies scheduling, can satisfy aforesaid different broadcast SMS blanking time during scheduling greater than T
Bsms
Broadcast SMS processing entities module in the base station is with corresponding data structure of broadcast SMS of current transmission, and except message content, the processing entities module also will add the information of message header and message ending.Base station processing entities module forms a complete message body, and its segmentation is mapped in the SYS3 message of BCCH through after adding message header and message ending.
In the segmentation mapping process, the base station needs the processing entities module that every message body sequence number, m3 and News Category indication information in the SYS3 message is set.The processing entities module judges whether message body sends and finishes that if the message body sequence number is 0, expression sends and finishes, and the transmission of next bar broadcast SMS will be carried out in the base station.Do not finish if send, SYS3 message will be continued to send in the base station.
After terminal received SYS3 message, the message identifier module in the terminal received message header earlier according to News Category, and the message identifier that message identifier module check message was made a basket if message identifier is new, next will receive message content and message ending.Finally receive a broadcast SMS.
Other execution mode of the present invention also comprises thought of the present invention is extrapolated on other message that similar structures is arranged, and is not limited only to the SYS3 among the BCCH.As idle system message in other channels, or the broadcast system message with data structure of the present invention that adds in addition.
Above introduce, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, be the variation of the equalization done according to the present invention of the those skilled in the art in the present technique field, for example each module among the above embodiment carried out function and replace or each step is made up.And the improvement known of those skilled in that art, all should still belong to the scope that patent of the present invention contains.
Claims (11)
1, a kind of PHS system sends the method for broadcast SMS, it is characterized in that may further comprise the steps:
A. after the broadcast SMS processing entities module in the base station adds the information of message header and message ending with the broadcast SMS content of current transmission, form a complete message body, and its segmentation is mapped in the data structure of corresponding message, a complete broadcast SMS body can be by some message bearings;
B. in the segmentation mapping process, the processing entities module is provided with the parameter in every message data structure, and broadcasts these message in order by the base station; Described message body utilizes the tertiary system system message in the Broadcast Control Channel to send;
C. the processing entities module is judged whether this broadcast SMS sends and is finished, and finishes if this broadcast SMS sends, and the transmission of next bar broadcast SMS will be carried out in the base station; Do not finish if send, the message of this broadcast SMS of carrying will be continued to send in the base station.
2, a kind of PHS as claimed in claim 1 system sends the method for broadcast SMS, it is characterized in that described parameter comprises message body sequence number, message status and News Category indication information.
3, a kind of PHS as claimed in claim 2 system sends the method for broadcast SMS, it is characterized in that described message body sequence number is that 0 this broadcast SMS of expression sends and finishes.
4, a kind of PHS as claimed in claim 1 system sends the method for broadcast SMS, it is characterized in that described broadcast SMS produces by short message service server.
5, a kind of PHS as claimed in claim 4 system sends the method for broadcast SMS, it is characterized in that described short message service server issues equipment of the core network with broadcast SMS, issue relevant base station controller by equipment of the core network again, be sent to the base station by base station controller.
6, a kind of PHS as claimed in claim 2 system sends the method for broadcast SMS, after it is characterized in that phs terminal receives tertiary system system message, receive message header earlier according to the News Category indication, message identifier in the message header is used to judge whether that needs receive this broadcast SMS, if message identifier is new, next will receive message content and message ending.
7, a kind of PHS as claimed in claim 6 system sends the method for broadcast SMS, it is characterized in that described terminal message identifier preservation a period of time with paid-in tertiary system system message, and the sign of the message identifier that will newly receive and preservation compares, if there be not the message identifier identical in the terminal, then next receive message content and message ending with the message identifier of newly receiving.
8, a kind of PHS as claimed in claim 7 system sends the method for broadcast SMS, it is characterized in that described terminal will receive that message identifier preserved 48 hours.
9, send the system of broadcast SMS in a kind of PHS system, it is characterized in that comprising broadcast SMS processing entities module in the base station and the message identifier module in the terminal, broadcast SMS processing entities module adds that with the broadcast SMS content message header and message ending form a complete message body, and its segmentation is mapped in the data structure of corresponding message and sends; In the segmentation mapping process, the processing entities module is provided with the parameter in every message data structure, and broadcasts these message in order by the base station; Described message body utilizes the tertiary system system message in the Broadcast Control Channel to send; Message identifier in the message header provides the information whether terminal judges needs to receive this broadcast SMS; Terminal receives the message header of broadcast SMS and by the message identifier that the message identifier module is preserved and the contrast terminal is received, if message identifier is new, then continues to receive broadcast SMS content and message ending.
10, send the system of broadcast SMS in a kind of PHS as claimed in claim 9 system, it is characterized in that described broadcast SMS processing entities module is after the message that sends a carrying broadcast SMS, judging whether this broadcast SMS sends finishes, finish if this broadcast SMS sends, the transmission of next bar broadcast SMS will be carried out in the base station; Do not finish if send, the message of this broadcast SMS of carrying will be continued to send in the base station.
11, send the system of broadcast SMS in a kind of PHS as claimed in claim 9 system, it is characterized in that the message identifier module in the described terminal preserves a period of time with the message identifier of paid-in carrying broadcast SMS, and the sign of the message identifier that will newly receive and preservation compares, if do not have the message identifier identical in the message identifier module in the terminal, then next receive message content and message ending with the message identifier of newly receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100528926A CN100502577C (en) | 2004-07-15 | 2004-07-15 | Method for PHS system to broadcast short message, short message structure and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100528926A CN100502577C (en) | 2004-07-15 | 2004-07-15 | Method for PHS system to broadcast short message, short message structure and its system |
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| CN1589038A CN1589038A (en) | 2005-03-02 |
| CN100502577C true CN100502577C (en) | 2009-06-17 |
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| CNB2004100528926A Expired - Fee Related CN100502577C (en) | 2004-07-15 | 2004-07-15 | Method for PHS system to broadcast short message, short message structure and its system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119294B (en) * | 2006-07-31 | 2010-05-12 | 华为技术有限公司 | Wireless multimedia broadcasting system and method thereof |
| CN101677453B (en) * | 2008-09-16 | 2012-05-09 | 中兴通讯股份有限公司 | Method and system for transmitting and broadcasting system information |
| CN102395113B (en) * | 2011-10-31 | 2015-06-10 | 成都科创知识产权研究所 | Method and system for ensuring successful sending of messages |
| CN103067872A (en) * | 2012-12-28 | 2013-04-24 | 广西英伦通信技术有限公司 | Method of using cell broadcasting control channel to transmit business short messages |
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