Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide a kind of IMS system that system complexity can be greatly reduced
System, a kind of message treatment method, a kind of message processing apparatus and a kind of storage medium.
To achieve the above object, the embodiment of the present invention uses following technical scheme:
On the one hand, the embodiment of the present invention provides a kind of IMS system, comprising:
Short MMS center and Call-Establish-Success rate network element, the short MMS center connect the calling meeting by ISC interface
Words control network element;
The short MMS center is used to connect main dialing user or called party terminal, the call session by MMS interface
Control network element is used to connect the main dialing user or the called party terminal by Gm;
After the short MMS center receives the upstream message that the main dialing user is sent, if the short MMS center is
The registration information for storing called party terminal, then initiate message and issue process, by the Call-Establish-Success rate network element to the quilt
It is user terminal distributing multimedia message message or short message;Wherein, the upstream message includes the multimedia message or short message.
It in one of the embodiments, further include home signature user server, the home signature user server point
The Call-Establish-Success rate network element and the short MMS center are not communicated to connect, and the home signature user server is used for institute
It states short MMS center and the business datum of the called party terminal is provided.
On the other hand, a kind of message treatment method is also provided, comprising:
Receive the upstream message that main dialing user is sent;Wherein, the upstream message includes short message or multimedia message;
If having stored the registration information of the corresponding called party terminal of the upstream message, initiates message and issue process, it will
The upstream message is issued to the called party terminal.
In one of the embodiments, the method also includes:
If the registration information of the corresponding called party terminal of the not stored upstream message, obtain described called
The business datum of user terminal;Wherein, the business datum is the business number that stores on the home signature user server of IMS system
According to;
If determining that the called party terminal is external network user end according to the business datum, the upstream message is forwarded extremely
The outer net of the IMS system connection.
In one of the embodiments, the method also includes:
If determining that the called party terminal is the user terminal of the IMS system according to the business datum, and described called
User terminal is then to cache the upstream message directly under user terminal.
If described in one of the embodiments, determine that the called party terminal is the IMS according to the business datum
The user terminal of system, and after the step of called party terminal is directly under user terminal, then caches the upstream message, further includes:
If receiving the registration information of the called party terminal, setting up the upstream message again and initiating message
Process is issued, the upstream message is issued to the called party terminal.
In one of the embodiments, the method also includes:
If determining that the called party terminal is the user terminal of the IMS system according to the business datum, and described called
User terminal is outer category user terminal, the then short MMS center for forwarding the upstream message to the called party terminal to belong to.
In one of the embodiments, the method also includes:
If receiving, the upstream message is corresponding to issue failed message, caches the upstream message.
On the other hand, a kind of message processing apparatus is also provided, comprising:
Transceiver module is issued to institute for receiving the upstream message of main dialing user transmission, and by the upstream message
State called party terminal;Wherein, the upstream message includes short message or multimedia message;
Control module issues process for initiating message;
Data capsule module, for storing the registration information of the corresponding called party terminal of the upstream message.
In another aspect, also providing a kind of computer readable storage medium, it is stored thereon with computer program, the computer
The step of message treatment method is realized when program is executed by processor:
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Above-mentioned IMS system, message treatment method, device and storage medium, by by sms center and MMS center two
Independent network element permeates network element namely short MMS center, is managed collectively short message and multimedia message by short MMS center
Reception and transmission processing.In short MMS center, the communication saved between two network elements of former sms center and MMS center is connect
Mouthful, user authentication information is no longer needed to copy respectively, be backuped in two different network elements, to reduce core net to external AS
The management of network element is docked, and system complexity is greatly reduced, and also improves data processing and efficiency of transmission, the reduction communication resource are opened
Pin and raising memory usage.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Referring to Fig. 1, in one embodiment, providing a kind of IMS system 100, including short MMS center 12 and calling meeting
Words control network element 14.Short MMS center 12 connects Call-Establish-Success rate network element 14 by ISC interface.Short MMS center 12 is for leading to
Cross MMSMInterface (namely the interface between MMS Relay/Server and the MMS Client in 3GPP32240 agreement, also referred to as
MM1 interface) connect main dialing user or called party terminal.Call-Establish-Success rate network element 14 is used to connect caller by Gm and use
Family end or called party terminal.After short MMS center 12 receives the upstream message of main dialing user transmission, if short MMS center 12
The registration information of called party terminal has been stored, then has initiated message and issues process, by Call-Establish-Success rate network element 14 to called use
Family end distributing multimedia message message or short message.Wherein, upstream message includes multimedia message or short message.
It is appreciated that above-mentioned main dialing user can be the main dialing user of above-mentioned IMS system, be also possible to it is above-mentioned
20 main dialing user of outer net of core network communications where IMS system.Further, the main dialing user of above-mentioned IMS system, can be with
Be belong to above-mentioned short MMS center 12 directly under main dialing user, other for being also possible to belong in above-mentioned IMS system are short
The outer category main dialing user of MMS center 12.The ownership of above-mentioned called party terminal can similarly understand.Short MMS center 12 can
To judge the ownership place of called party terminal according to the registration information of called party terminal.It should be noted that being shown in Fig. 1
UE 30 can be main dialing user, be also possible to called party terminal.
Specifically, short MMS center 12 is being received directly under on main dialing user, outer category main dialing user or outer net 20
After the upstream message that other main dialing users are sent, it will whether inquiry therein has been stored with the registration of called party terminal
Information.If short MMS center 12 confirms the registration information for being stored with called party terminal, in other words, called party terminal is belonged to
The short MMS center 12 and in can receive the state of aforementioned upstream message online.Short MMS center 12 can then be initiated according to agreement
Message issues process.Message issues process and can be through Call-Establish-Success rate network element 14 to short-message sending under called party terminal,
It is also possible to through Call-Establish-Success rate network element 14 to called party terminal distributing multimedia message message, such as to called party terminal distributing multimedia message
PUSH message.
Called party terminal can directly pass through MMS interface, from short multimedia message when the downstream message received is multimedia message
Corresponding MMS content is downloaded on center 12 to local.Called party terminal the downstream message received be multimedia message when,
It can be after the multimedia message for receiving owning user (i.e. owner) input receives instruction, through MMS interface from short MMS center 12
Corresponding MMS content is downloaded to local.It is appreciated that if short MMS center 12 confirms the not stored registration for having called party terminal
Information, in other words, called party terminal are in off-line state, for outer category called party terminal or be 20 called party terminal of outer net
When, short MMS center 12 will correspond to other the short coloured silks for executing caching upstream message, upstream message to called party terminal being forwarded to belong to
Letter center 12 forwards upstream message to processes such as outer nets 20.Wherein, after short MMS center 12 caches upstream message, such as
It is cached to the corresponding position of the database of IMS system, (namely the straight of the short MMS center 12 can be belonged to called party terminal
Belong to called party terminal) it is online when, such as short MMS center 12 receives submission when being registered of called party terminal access IMS system
Registration information, then the upstream message of caching can be set up again with initiate issue process, upstream message is issued to called
User terminal.
It should be noted that it will be understood by those skilled in the art that above-mentioned registration information is that IMS system exists in this field
Carry out subscription authentication data needed for short message or multimedia message service process.Above-mentioned called party terminal receives the short message issued
Or after multimedia message, each network element can also complete other processes based on the existing related protocol in this field, example in IMS system
As short MMS center 12 is connect in fact by Ro interface (namely Ro interface in 3GPP32240 agreement) with charge system (OCS) 40
Other processes such as existing charging processing.Above-mentioned each interface is conventional used in respective network elements in the IMS system of this field
Interface.
Above-mentioned IMS system, by the way that two independent network elements of sms center and MMS center are permeated network element, namely
Short MMS center 12 is handled by reception and transmission that short MMS center 12 is managed collectively short message and multimedia message.In short multimedia message
In center 12, the communication interface between two network elements of former sms center and MMS center is saved, user authentication information no longer needs
It copies, backuped in two different network elements respectively, the management of external AS network element is docked to reduce core net, is substantially reduced
System complexity also improves data processing and efficiency of transmission, reduces communication resource expense and improves memory usage.
As shown in Figure 1, in one embodiment, above-mentioned IMS system further includes home signature user server 16.Ownership
Assigned user server 16 communicates to connect Call-Establish-Success rate network element 14 and short MMS center 12 respectively.Home signature user service
Device 16 is used to provide the business datum of called party terminal to short MMS center 12.
Wherein, home signature user server 16 (Home Subscriber Server, HSS) is IMS system in this field
Conventional HSS server in system.Business datum is user's letter of the called party terminal saved on home signature user server 16
Breath, for carrying out the subscription authentication etc. of this field routine to called party terminal.Home signature user server 16 and call session
The Cx interface that the communication connection between network element 14 is this field routine is controlled to connect.Home signature user server 16 and short multimedia message
Communication connection between center 12 is that the Sh interface of this field routine connects.It will be understood by those skilled in the art that above-mentioned exhales
Session control network element 14 is made to specifically include I-CSCF network element, S-CSCF network element and P-CSCF network element.P-CSCF network element passes through ability
The Mw of domain routine is connect with I-CSCF network element, S-CSCF network element.
Specifically, if when short MMS center 12 confirms the not stored registration information for having called party terminal, short MMS center 12
The business datum of called party terminal is inquired, to home signature user server 16 by Sh interface to determine the mirror of called party terminal
Power is as a result, such as the business datum by called party terminal determines professional ability and the home address of called party terminal.Short coloured silk
Letter center 12 is interacted by Sh interface with home signature user server 16, it can determines upstream message institute to be issued
The called party terminal that need to be issued to or situations such as whether can directly be issued to called party terminal, for example, called party terminal whether
Has MMS business ability.Pass through above-mentioned home signature user server 16 and short MMS center 12, Call-Establish-Success rate net
Interaction between member 14 can be with, after effectively ensuring that main dialing user sends upstream message, be rapidly completed called party terminal authentication,
Caller or the register flow path of called party terminal etc..
Referring to Fig. 2, in one embodiment, additionally providing a kind of message treatment method, it is applied in Fig. 1 in this way
IMS system for be illustrated, include the following steps S12 and S14:
S12 receives the upstream message that main dialing user is sent;Wherein, upstream message includes short message or multimedia message.
Specifically, short MMS center 12 can receive the calling subscriber in IMS system by Call-Establish-Success rate network element 14
The upstream message sent is held, also can receive the upstream message that the main dialing user of outer net 20 is sent.Upstream message can be short
Message, namely the message to be processed of carrying short message service are also possible to multimedia message, namely carrying the to be processed of MMS business disappears
Breath.
S14 initiates message and issues process if having stored the registration information of the corresponding called party terminal of upstream message, will
Upstream message is issued to called party terminal.
Specifically, after short MMS center 12 receives upstream message, it will inquiry therein whether be stored with by
It is the registration information of user terminal.Such as whether has called subscriber in the user information container (UserMgr) of inquiry therein
The registration information at end.If short MMS center 12 confirms the registration information for being stored with called party terminal, in other words, called subscriber
End belongs to the short MMS center 12 and in the state that can receive aforementioned upstream message online.Short MMS center 12 then can be according to
Agreement initiates message and issues process.Message, which issues process and can be, to be issued by Call-Establish-Success rate network element 14 to called party terminal
Short message is also possible to through Call-Establish-Success rate network element 14 to called party terminal distributing multimedia message message, such as to called party terminal
Distributing multimedia message PUSH message, so as to be used after called party terminal receives multimedia message PUSH message to the downloading caller of short MMS center 12
The MMS content that family end is sent.
In above-mentioned message treatment method, reception and the hair of short message and multimedia message are managed collectively by short MMS center 12
Send processing.In short MMS center 12, the communication interface between two network elements of former sms center and MMS center, Yong Hujian are saved
Power information is no longer needed to copy respectively, be backuped in two different network elements, to reduce core net to the pipe of external AS network element
Reason docking, greatly reduces system complexity, also improves data processing and efficiency of transmission, reduces communication resource expense and mention
High memory usage.
It in one embodiment, further include following steps in above-mentioned message treatment method: if receiving upstream message pair
That answers issues failed message, then caches upstream message.
It is appreciated that short MMS center 12 is when issuing upstream message to called party terminal, if called party terminal can not be just
Upstream message often is received, such as interrupted communication link, called party terminal go offline or other interference cause message sink to fail
When, the message that will receive downlink feedback is issued the response message of failure by short MMS center 12.At this point, short multimedia message
Center 12 is cached to failing to issue successful upstream message, such as the short multimedia message passed through inside short MMS center 12 holds
Device (SmsMsMgr) caches upstream message into the database of IMS system, with after called party terminal is online, from database
The corresponding memory content of middle reading context, and upstream message and corresponding context are regenerated, upstream message is issued to
Called party terminal.
Above-mentioned step, when avoiding short MMS center 12 and receiving upstream message, i.e., the caching of progress upstream message and
Occupy databases resource.By receiving after upstream message issues the response of failure in short MMS center 12, then carry out uplink
The caching of message, so as to effectively save database resource.
Referring to Fig. 3, in one embodiment, above-mentioned message treatment method further includes step S16 and S18:
S16, if the registration information of the corresponding called party terminal of not stored upstream message, obtains the business of called party terminal
Data;Wherein, business datum is the business datum that stores on the home signature user server 16 of IMS system.
Specifically, when short MMS center 12 inquires the user information container of therein, if in the quilt for not inquiring storage
It is the registration information of user terminal, then needs to inquire the business datum of called party terminal to home signature user server 16, with true
Determining called party terminal is in off-line state or outer category called party terminal either 20 called party terminal of outer net.
S18 forwards upstream message to IMS system if determining that called party terminal is 20 user terminal of outer net according to business datum
The outer net 20 of system connection.
Specifically, short MMS center 12 determines that called party terminal belongs to outer net 20 and uses according to the business datum of called party terminal
When the end of family, such as short MMS center 12 is authenticated according to business datum, and determining called party terminal not is short 12 institute of MMS center
IMS system user, whens not having multimedia message reception ability etc., short MMS center 12 is by can be according to the business of called party terminal
The attaching information that data determine, forwarding upstream message to outer net 20.Such as called party terminal ownership sms center or multimedia message in
The outer net 20 of core net namely the connection of IMS system where the heart, so that upstream message is forwarded to called party terminal by outer net 20.
Short MMS center 12 S16 and S18 through the above steps directly inquires called party terminal to home signature user server 16
Business datum carries out unified authentication, determines the information such as ownership and the professional ability of called party terminal, to realize upstream message
Efficient forwarding.
Referring to Fig. 4, in one embodiment, above-mentioned message treatment method further includes step S20:
S20, if according to business datum determine called party terminal be IMS system user terminal, and called party terminal be directly under
User terminal then caches upstream message.
Specifically, short MMS center 12 determines that called party terminal belongs to IMS system in the business datum according to called party terminal
The user of system, and belong to itself namely called party terminal be short MMS center 12 directly under user terminal when, determine called use
Family end is currently the state that can not receive upstream message, such as the off-line states such as shutdown or out of reach.Short MMS center 12
Then upstream message to be issued is cached, for example, caching short message perhaps multimedia message entity in short message or coloured silk
In the life cycle for believing message, short message content or the storage of MMS content etc. in database are managed.
S20 through the above steps, short MMS center 12 is when called party terminal is to register online, directly in upstream message
In life cycle, the reliable cache of upstream message to be issued is carried out, upstream message is avoided to lose, caching process simple flow,
Effectively promote message buffer efficiency.
It in one embodiment, further include step after step S20 as shown in figure 4, in above-mentioned message treatment method
S22:
S22 sets up upstream message again and initiates message and issue stream if receiving the registration information of called party terminal
Upstream message is issued to called party terminal by journey.
Specifically, belonging to the called party terminal access net of short MMS center 12, such as return to IMS system service area
Or when again online, the registration information of called party terminal will be registered to short MMS center 12, such as short MMS center 12 is logical
Cross the registration information that home signature user server 16 obtains called party terminal.Short MMS center 12 will read caching to database
In short message content perhaps multimedia message content and regenerate short message or multimedia message entity context,
Process is issued to initiate message, on-line message is issued to called party terminal.S22 through the above steps, it can be ensured that quilt
After making user terminal online, short MMS center 12 issues the efficiency of upstream message to called party terminal,
Fig. 5 and Fig. 6 are please referred to, in one embodiment, above-mentioned message treatment method further includes step S17:
S17, if determining that called party terminal is the user terminal of IMS system according to business datum, and called party terminal is outer category
User terminal, the then short MMS center 12 for forwarding upstream message to called party terminal to belong to.
Specifically, as shown in Figure 5 and Figure 6, in above-mentioned message treatment method, short MMS center 12 is according to called subscriber
The business datum at end determines that called party terminal is the user terminal of above-mentioned IMS system, and called party terminal is to belong to above-mentioned IMS
When other short MMS centers 12 namely called party terminal of system are outer category user terminal, short MMS center 12 is then by upstream message
Other short MMS centers 12 that called party terminal is belonged to are forwarded to, so that other short MMS centers that called party terminal is belonged to
The upstream message that 12 pairs of main dialing users are sent issues process by initiating message, is issued to called party terminal.
S17 through the above steps, message of the short MMS center 12 in IMS system in unified direct carry out system turn
Hair, interaction simplify, and effectively improve message forward efficiency in system.
It should be understood that although each step in the flow chart of Fig. 2-6 is successively shown according to the instruction of arrow,
These steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
Execution there is no stringent sequences to limit, these steps can execute in other order.Moreover, at least one in Fig. 2-6
Part steps may include that perhaps these sub-steps of multiple stages or stage are not necessarily in synchronization to multiple sub-steps
Completion is executed, but can be executed at different times, the execution sequence in these sub-steps or stage is also not necessarily successively
It carries out, but can be at least part of the sub-step or stage of other steps or other steps in turn or alternately
It executes.
Referring to Fig. 7, in one embodiment, providing a kind of message processing apparatus 200, including transceiver module 12, control
Molding block 14 and data capsule module 16, in which:
Transceiver module 12 for receiving the upstream message of main dialing user transmission, and upstream message is issued to called
User terminal;Wherein, upstream message includes short message or multimedia message.
Control module 14 issues process for initiating message.
Data capsule module 16, for storing the registration information of the corresponding called party terminal of upstream message.
In above-mentioned message processing apparatus 200, the reception and transmission of short message and multimedia message are managed collectively by each module
Processing, user authentication information is no longer needed to copy respectively, be backuped in two different network elements, to reduce core net to outside
The management of AS network element is docked, and system complexity is greatly reduced, and is also improved data processing and efficiency of transmission, is reduced the communication resource
Expense and raising memory usage.
In one embodiment, above-mentioned message processing apparatus 200 further includes service inquiry module and the first forwarding module.
Service inquiry module is used in the registration information of the corresponding called party terminal of not stored upstream message, obtains called party terminal
Business datum.Wherein, business datum is the business datum that stores on the home signature user server 16 of IMS system.First turn
Hair module is used for when determining that called party terminal is 20 user terminal of outer net according to business datum, forwarding upstream message to IMS system
The outer net 20 of connection.
In one embodiment, above-mentioned message processing apparatus 200 further includes the first buffer process module, in basis
Business datum determine called party terminal be IMS system user terminal, and called party terminal be directly under user terminal when, caching uplink disappear
Breath.
In one embodiment, above-mentioned message processing apparatus 200 further include rebuild issue module, for receive by
When being the registration information of user terminal, upstream message is set up again and initiates message and issues process, upstream message is issued to called
User terminal.
In one embodiment, above-mentioned message processing apparatus 200 further includes the second forwarding module, for according to business
Data determine called party terminal be IMS system user terminal, and called party terminal be outer categorys user terminal when, forward upstream message extremely
The short MMS center 12 of called party terminal ownership.
In one embodiment, above-mentioned message processing apparatus 200 further includes the second buffer process module, for receiving
When issuing failed message to upstream message is corresponding, upstream message is cached.
Specific about message processing apparatus 200 limits the restriction that may refer to above for message treatment method,
This is repeated no more.Modules in above-mentioned message processing apparatus 200 can come fully or partially through software, hardware and combinations thereof
It realizes.Above-mentioned each module can be embedded in the form of hardware or independently of in the processor in computer equipment, can also be with software
Form is stored in the memory in computer equipment, executes the corresponding operation of the above modules in order to which processor calls.
Fig. 8 and Fig. 9 are please referred to, in one embodiment, as shown in figure 8, the short MMS center 12 in the various embodiments described above
It can be encapsulated based on Session Initiation Protocol.For example, the function of short message and multimedia message push lower layer makees bottom association by Session Initiation Protocol
View encapsulation.Subscriber Number type (such as SIPURI) can be wherein encapsulated in SIP head, routing, AS central number and branch are delivered in forwarding
Hold the information such as mode.SIP BODY (SIP main part) may include the corresponding short message content of short message or multimedia message pair
The MMS content answered.Other protocol layers are this field normal protocol layer.As shown in figure 9, above-mentioned is each in short MMS center 12
Item business function can be implemented by each functional module in sms center respectively, can for example, short MMS center 12 is whole
To be divided into transceiver module 12 namely communication layers (Communication Layer), control module 14 namely Service control
The three parts such as (Application Control) and data capsule module 16 namely data capsule (Data Container).
Wherein:
Communication layers are responsible for sending and receiving for each interface message, in which:
Sip message transceiver module (SipProcessor) is completed for short MMS center 12 by ISC interface and S-CSCF
The sip message of network element is received and dispatched, and is provided the sip message on ISC interface and is received event and send service.
The outer net 20Map message that Map messaging interface (MapProcessor) is used to complete to connect with IMS system connects
Receive and send service, service logic signaling connection and transmission signaling data list.
HTTP message transceiver module (HttpProcessor) is used to complete and have the coloured silk for the user terminal that multimedia message receives ability
Believe content reception and transmission, MMS is providedMHTTP message on interface receives event and sends service.
SMTP messaging interface (SmtpProcessor) is used to complete the reception of the outer net 20SMTP message of IMS system
It is serviced with sending.
Charging transceiver module (DiameterProcessor) is for completing and the Ro interface of charge system OCS, Yi Jiyu
The Diameter link establishment of HSS customer information, provide data communication channel (DCC) message sends and receivees service.
Coding/decoding module (CodeLayer) is used to carry out encoding and decoding to short message and multimedia message, extracts in message
Adaptation conversion is carried out between specifying information and the structural body of the short multimedia message of storage.
Service control is for being responsible for short message and MMS business logic, in which:
Service logic control module (Processor) is safeguarded in short multimedia message for realizing the Row control of short message and multimedia message
Row (namely MO) or downlink (namely MT) process, storage management retransmit control and net interior and interworking service Route Selection
Deng.
Data capsule is for being responsible for storage service and context management, in which:
Configuration data management container (ConfigMgr) with database for interacting, reading configuration information, monitor and process number
The information altering event issued according to communication network (DCN).
Perhaps multimedia message entity is raw in short message or multimedia message for caching short message for short multimedia message container (SmsMsMgr)
The storage and deletion of short message or multimedia message in management database in the period are ordered, it is corresponding in reading database when business process starts
Information regenerates the context of short message or multimedia message entity.
Maintenance is used when user information container (UserMgr) carries out third-party registration for short MMS customer end or goes registration
The log-on data at family end provides caller or the registration information inquiry of called party terminal in short multimedia message process flow.
Message queue module (MsgQueue) is used to manage short message or multimedia message re-transmit queue, and regularly sends queue,
Process is issued by the message that timer generation time triggers Processor.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor receives the upstream message that main dialing user is sent;Wherein, upstream message packet
Include short message or multimedia message;If having stored the registration information of the corresponding called party terminal of upstream message, initiates message and issue
Upstream message is issued to called party terminal by process.
In one embodiment, it can also be realized when computer program is executed by processor in the various embodiments described above at message
Each increase step of reason method.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.