CN105245433B

CN105245433B - A kind of method that realizing private chat, RCS AS and system

Info

Publication number: CN105245433B
Application number: CN201510543631.2A
Authority: CN
Inventors: 谢地金; 马家斌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2018-10-19
Anticipated expiration: 2035-08-28
Also published as: CN105245433A

Abstract

The embodiment of the invention discloses a kind of method for realizing private chat, RCS AS and system, the method for the realization private chat includes：RCS AS receive the group chat message for carrying CSI called subscriber identification collection that calling subscribe sends by the MSRP channels between calling subscribe and RCS AS；It is M chat messages corresponding with M called subscriber to split group chat message according to CSI called subscriber identification collection；Send the corresponding chat messages in M chat messages respectively to M called subscriber.The embodiment of the present invention advantageously reduces the Signalling exchange of RCS AS and user, to improve chat group MSRP channels utilization rate, slow down the performance loss of RCS AS and user.

Description

A kind of method that realizing private chat, RCS AS and system

Technical field

The present invention relates to wireless communication technology fields, and in particular to a kind of method that realizing private chat, RCS AS and system.

Background technology

IP multimedia subsystem (IP Multimedia Subsystem, IMS) is that IP based network provides multimedia service Universal network framework.Rich communication external member (Rich communication Suit, RCS) based on IMS is a kind of based on increasing Strong mobile phone local address sheet, integrate voice, the communications such as message, video, content are shared and function are melted Hop communication service effectively can bundle and integrate existing standardized service (such as 3GPP, OMA, GSMA) and provide abundant lead to Telecommunications services.Message session trunk protocol (Message Session Relay Protocol, MSRP) defined in RFC4975 is used In the content for transmitting instant message in the instant messaging IM sessions having built up, information interactive process is completed.

RCS group chat services are mainly used for more people's chats, and RCS application servers (Application Server, AS) are first The group creating message sent according to calling subscribe establishes chat group, and multiple users are integrated into same chat group, main User is made to need to send INVITE message to RCS AS, in order to which RCS AS activate chat group, each in chat group User establishes the MSRP channels for having and being exclusively used in transmission group chat message, the MSRP channels that calling subscribe passes through foundation with RCS AS respectively Group chat message input by user is sent to RCS AS, and RCS AS can be according to the user list of chat group to all called subscribers Distribute the group chat message received.

In prior art, if user wishes to conversate with the certain customers in current chat group, it is necessary to again Create new chat group.Such as in the chat group including multiple users such as user A, user B, user C and user D, If user A and user B chats, can only be completed by way of re-establishing one-to-one bilateral session at present, if user A to User B and user's C group chats, at present can only by re-establish a chat group comprising user A, user B and user C come It completes, either re-establishes bilateral session and still establish chat group, can all consume the session money between user and RCS AS Source and connection resource, and re-establishing group chat session also needs execution to invite user that group is added, and user is notified to enter group, activates group The multi-pass operations such as group and Signalling exchange could be completed.

Invention content

The embodiment of the present invention provides a kind of method that realizing private chat, RCS AS and system, to reduce RCS AS and user Signalling exchange, to improve chat group MSRP channels utilization rate, slow down the performance loss of RCS AS and user.

First aspect of the embodiment of the present invention discloses a kind of method for realizing private chat, including：

RCS AS receive taking for calling subscribe's transmission by the MSRP channels between calling subscribe and the RCS AS Group chat message with CSI called subscriber identification collection, wherein the letter of the MSRP channels between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in road index mark include N number of user, and the CSI called subscriber identification collection includes M quilt Be the M user identifier of user, the M user identifier be N number of user N number of user identifier in remove the calling subscribe User identifier except M user identifier, the N is integer more than 2, and the M is positive integer, and the M is less than N-1；

The RCS AS split the group chat message according to the CSI called subscriber identification collection The M chat messages answered；

The RCS AS send the corresponding chat messages in the M chat messages to the M called subscriber respectively.

In first aspect of the embodiment of the present invention the first possible realization method, the RCS AS are according to the called use It is M chat messages corresponding with the M called subscriber that family identification sets, which split the group chat message, including：

The RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and user's mark of the calling subscribe It is private chat group identification collection to know；

The RCS AS according to the address information to prestore and the channel indexes of MSRP channels mark between mapping relations, with And the M address information that the CSI called subscriber identification obtained is concentrated, determine the corresponding M called use of the M address information M channel indexes of M MSRP channel between family and the RCS AS identify, wherein the channel indexes mark includes institute State the user identifier of chat group ID and called subscriber；

The RCS AS are based on chat message, the private chat group identification collection and the M in the group chat message Channel indexes mark generates the corresponding M chat messages of the M called subscriber.

In conjunction with the first possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention In two kinds of possible realization methods, the RCS AS send the phase in the M chat messages to the M called subscriber respectively Chat messages are answered, including：

The RCS AS send the M chat messages respectively by the M MSRP channels to the M called subscriber In corresponding chat messages.

In conjunction with second of possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention In three kinds of possible realization methods, the RCS AS according to the CSI called subscriber identification collection split the group chat message be with it is described After the corresponding M chat messages of M called subscriber, the RCS AS are called to the M by the M MSRP channels and are used Before family sends the corresponding chat messages in the M chat messages respectively, the method further includes：

The RCS AS obtain M MSRP channel between the M called subscriber and the RCS AS.

In conjunction with the third possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention In four kinds of possible realization methods, the RCS AS obtain the letters of M MSRP between the M called subscriber and the RCS AS Road, including：

The RCS AS extract N number of MSRP channels and N number of MSRP letters between N number of user and the RCS AS Mapping relations list between N number of channel indexes mark in road；

The RCS AS are identified as inquiry foundation with the M channel indexes, inquire the mapping relations list to obtain M MSRP channel between the M called subscriber and the RCS AS.

In conjunction with the first or second of first aspect of the embodiment of the present invention or first aspect or the third or the 4th kind of possibility Realization method, in the 5th kind of possible realization method of first aspect of the embodiment of the present invention, the RCS AS are used by caller MSRP channels between family and the RCS AS receive the group chat for carrying CSI called subscriber identification collection that the calling subscribe sends Before message, the method further includes：

The RCS AS receive the group's activation request for carrying chat group ID that the calling subscribe sends；

The RCS AS respond group's activation request, after sending response message to the calling subscribe, create simultaneously The MSRP channels between the calling subscribe and the RCS AS are preserved, and according to the chat group ID and the calling subscribe User identifier generate the MSRP channels between the calling subscribe and the RCS AS channel indexes mark；

The calling subscribe is removed in N number of user that the RCS AS include to the corresponding chat groups of the chat group ID Except N-1 user send group activation request respectively；

The RCS AS receive the activation request of group described in each user response in the N-1 user and send After response message, the MSRP channels between each user and the RCS AS are created, according to the chat group ID And the user identifier of each user generates the channel of the MSRP channels between each user and the RCS AS Index mark；

Described in MSRP channels, establishment between the calling subscribe and the RCS AS of the RCS AS based on establishment Between MSRP channels and the calling subscribe generated and the RCS AS between each user and the RCS AS The channel rope of MSRP channels between the channel indexes mark of MSRP channels, each described user and the RCS AS of generation Tendering is known, and N number of channel of the N number of MSRP channels and N number of MSRP channels between N number of user and the RCS AS is created Mapping relations list between index mark, wherein N number of MSRP channels include the calling subscribe with the RCS AS it Between MSRP channels and each described user and the RCS AS between MSRP channels.

A kind of RCS AS are disclosed in second aspect of the embodiment of the present invention, including：

First receiving unit is used for receiving the caller by the MSRP channels between calling subscribe and the RCS AS The group chat message for carrying CSI called subscriber identification collection that family is sent, wherein between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in the channel indexes mark of MSRP channels include N number of user, called subscriber's mark Know the M user identifier that collection includes M called subscriber, the M user identifier is in N number of user identifier of N number of user The M user identifier in addition to the user identifier of the calling subscribe, the N are the integer more than 2, and the M is positive integer, and The M is less than N-1；

Split cells is to be called to use with the M for splitting the group chat message according to the CSI called subscriber identification collection The corresponding M chat messages in family；

Dispatching Unit disappears for sending the corresponding chat in the M chat messages respectively to the M called subscriber Breath.

In the first possible realization method of second aspect of the embodiment of the present invention, the split cells is specifically used for：

The user identifier for merging M user identifier and the calling subscribe that the CSI called subscriber identification is concentrated is private chat group Group identification sets；

According to the institute of the mapping relations between the address information to prestore and the channel indexes of MSRP channels mark, and acquisition M address information for stating CSI called subscriber identification concentration, determines the corresponding M called subscriber of the M address information and the RCS M channel indexes of M MSRP channel between AS identify, wherein the channel indexes mark includes the chat group ID With the user identifier of called subscriber；

Based on chat message, the private chat group identification collection and the M channel indexes mark in the group chat message Know and generates the corresponding M chat messages of the M called subscriber.

In conjunction with the first possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention In second of possible realization method, the Dispatching Unit is specifically used for：

Accordingly chatting in the M chat messages is sent respectively to the M called subscriber by the M MSRP channels Its message.

In conjunction with second of possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention The third possible realization method in, the RCS AS further include：

Acquiring unit, for the split cells according to the CSI called subscriber identification collection split the group chat message be with After the corresponding M chat messages of the M called subscriber, the Dispatching Unit is by the M MSRP channels to the M Before called subscriber sends the corresponding chat messages in the M chat messages respectively, obtain the M called subscriber with it is described M MSRP channel between RCS AS.

In conjunction with the third possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention In 4th kind of possible realization method, the acquiring unit is specifically used for：

Extract N number of letter of the N number of MSRP channels and N number of MSRP channels between N number of user and the RCS AS Mapping relations list between road index mark；

It is identified as inquiry foundation with the M channel indexes, it is called to obtain the M to inquire the mapping relations list M MSRP channel between user and the RCS AS.

The first or second in conjunction with second aspect of the embodiment of the present invention or second aspect or the third or the 4th kind can The realization method of energy, in the 5th kind of possible realization method of second aspect of the embodiment of the present invention, the RCS AS further include：

Second receiving unit is asked for receiving the group's activation for carrying chat group ID that the calling subscribe sends It asks；

Channel creation unit is sent for responding group's activation request in the RCS AS to the calling subscribe After response message, the MSRP channels between the calling subscribe and the RCS AS are created and preserve, and according to the chat The user identifier of group ID and the calling subscribe generate the letter of the MSRP channels between the calling subscribe and the RCS AS Road index mark；

The Dispatching Unit is additionally operable to remove institute into N number of user that the corresponding chat groups of the chat group ID include It states N-1 user except calling subscribe and sends group's activation request respectively；

The channel creation unit, each user being additionally operable in the RCS AS receive the N-1 user ring Group's activation request is answered after the response message of transmission, establishment is described between each user and the RCS AS MSRP channels, according to the user identifier of the chat group ID and each user generate each described user with it is described The channel indexes of MSRP channels between RCS AS identify；

List creating unit, for the calling subscribe based on establishment and the MSRP channels between the RCS AS, wound MSRP channels and the calling subscribe generated between each described user and the RCS AS for building and the RCS MSRP channels between the channel indexes mark of MSRP channels between AS, each described user and the RCS AS of generation Channel indexes mark, create N number of MSRP channels between N number of user and the RCS AS and N number of MSRP channels N number of channel indexes mark between mapping relations list, wherein N number of MSRP channels include the calling subscribe and institute State the MSRP channels between RCS AS and the MSRP channels between each described user and the RCS AS.

The third aspect of the embodiment of the present invention discloses a kind of system for realizing private chat, including calling subscribe, RCS AS, In：

The calling subscribe, for passing through the MSRP channels between the calling subscribe and the RCS AS to the RCS AS sends the group chat message for carrying CSI called subscriber identification collection, wherein the MSRP between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in the channel indexes mark of channel include N number of user, the CSI called subscriber identification collection Include the M user identifier of M called subscriber, the M user identifier is removes institute in N number of user identifier of N number of user M user identifier except the user identifier of calling subscribe is stated, the N is the integer more than 2, and the M is positive integer, and described M is less than N-1；

The RCS AS split the group after receiving the group chat message according to the CSI called subscriber identification collection Merely message is M chat messages corresponding with the M called subscriber, and sends the M items respectively to the M called subscriber Corresponding chat messages in chat messages.

In the first possible realization method of the third aspect of the embodiment of the present invention, the RCS AS are according to the called use Family identification sets split the concrete mode that the group chat message is M chat messages corresponding with the M called subscriber：

The RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and user's mark of the calling subscribe It is private chat group identification collection to know, the mapping relations between being identified according to the address information to prestore and the channel indexes of MSRP channels, And the M address information that the CSI called subscriber identification obtained is concentrated, determine that corresponding M of the M address information is called M channel indexes of M MSRP channel between user and the RCS AS identify, based on the chat letter in the group chat message Breath, the private chat group identification collection and M channel indexes mark generate the corresponding M items chat of the M called subscriber Message, wherein the channel indexes mark includes the user identifier of the chat group ID and called subscriber.

In conjunction with the first possible realization method of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention Second of possible realization method in, the RCS AS are sent to the M called subscriber in the M chat messages respectively The concrete modes of corresponding chat messages be：

In conjunction with second of possible realization method of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention The third possible realization method in, the RCS AS are additionally operable to split the group chat according to the CSI called subscriber identification collection After message is M chat messages corresponding with the M called subscriber, it is called by the M MSRP channels to the M is a Before user sends the corresponding chat messages in the M chat messages respectively, the M called subscriber and the RCS are obtained M MSRP channel between AS.

In conjunction with the third possible realization method of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 4th kind of possible realization method, the RCS AS obtain M MSRP between the M called subscriber and the RCS AS The concrete mode of channel is：

The RCS AS extract N number of MSRP channels and N number of MSRP letters between N number of user and the RCS AS Mapping relations list between N number of channel indexes mark in road, is identified as inquiry foundation with the M channel indexes, inquires institute Mapping relations list is stated to obtain M MSRP channel between the M called subscriber and the RCS AS.

In conjunction with the first or second of the third aspect of the embodiment of the present invention or the third aspect or the third or the 4th kind of possibility Realization method, in the 5th kind of possible realization method of the third aspect of the embodiment of the present invention,

The calling subscribe is additionally operable to send the group's activation request for carrying chat group ID to the RCS AS；

The RCS AS are additionally operable to respond group's activation request, send response message to the calling subscribe, create And the MSRP channels between the calling subscribe and the RCS AS are preserved, and used according to the chat group ID and the caller The user identifier at family generates the channel indexes mark of the MSRP channels between the calling subscribe and the RCS AS；It is chatted to described N-1 user in N number of user that the corresponding chat groups of its group ID include in addition to the calling subscribe sends institute respectively State group's activation request；The sound for receiving group's activation request described in each user response in the N-1 user and sending After answering message, create the MSRP channels between each user and the RCS AS, according to the chat group ID and The user identifier of each user generates the channel rope of the MSRP channels between each user and the RCS AS Tendering is known；Each user described in MSRP channels, establishment between the calling subscribe and the RCS AS based on establishment MSRP channels between MSRP channels between the RCS AS and the calling subscribe generated and the RCS AS The channel indexes of MSRP channels between channel indexes mark, each the described user generated and the RCS AS identify, wound Build N number of channel indexes mark of the N number of MSRP channels and N number of MSRP channels between N number of user and the RCS AS Between mapping relations list, wherein N number of MSRP channels include the MSRP between the calling subscribe and the RCS AS MSRP channels between channel and each described user and the RCS AS.

In the embodiment of the present invention, RCS AS receive caller by the MSRP channels between calling subscribe and RCS AS first and use The group chat message for carrying CSI called subscriber identification collection that family is sent, secondly, RCS AS split group chat according to CSI called subscriber identification collection Message is M chat messages corresponding with M called subscriber, and finally, RCS AS send the chat of M items respectively to M called subscriber Corresponding chat messages in message.Due in the channel indexes mark of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID include N number of user, and CSI called subscriber identification collection includes the M user mark of M called subscriber Know, M user identifier is M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, and N is more than 2 Integer, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create new chat for calling subscribe and M called subscriber Group and new MSRP channels, you can the private chat for realizing calling subscribe and M called subscriber advantageously reduces RCS AS and user Signalling exchange, to improve chat group MSRP channels utilization rate, slow down the performance loss of RCS AS and user.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is a kind of network architecture schematic diagram disclosed by the embodiments of the present invention；

Fig. 2 is the structural schematic diagram of RCS AS disclosed by the embodiments of the present invention a kind of；

Fig. 3 is a kind of flow diagram of method for realizing private chat disclosed by the embodiments of the present invention.

Fig. 4 is the flow diagram of another method for realizing private chat disclosed by the embodiments of the present invention；

Fig. 5 is the flow diagram of the method for another realization private chat disclosed by the embodiments of the present invention；

Fig. 6 is the user disclosed by the embodiments of the present invention based in network architecture implementation example chat group shown in FIG. 1 A, the flow diagram of the method for the private chat of user B and user C；

Fig. 7 is a kind of state signal of display screen including example chat group interface disclosed by the embodiments of the present invention Figure；

Fig. 8 is the structural schematic diagram of RCA AS disclosed by the embodiments of the present invention a kind of；

Fig. 9 is a kind of configuration diagram of system for realizing private chat disclosed by the embodiments of the present invention.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiment only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, should all belong to the scope of protection of the invention.

Embodiment to facilitate the understanding of the present invention is below first described the network architecture of the embodiment of the present invention.It please join Fig. 1 is read, Fig. 1 is a kind of network architecture schematic diagram disclosed by the embodiments of the present invention.As shown in Figure 1, the network of the embodiment of the present invention Framework may include user, wireless base station, IMS solutions control unit Core, RCS AS, wherein above-mentioned user is installation The user terminal UE for having RCS clients, in RCS group chat service frameworks, the user specifically include calling subscribe in logic and Called subscriber, above-mentioned calling subscribe refer to the originating end of group chat message, and above-mentioned called subscriber refers to the specified reception of group chat message End, above-mentioned IMS Core are IMS solution control units, are mainly used for core control and user data stores role, be IMS User provides the work(such as network authentication, session control, roaming mobile management, loading end service quality QoS and media resource control Can, it is the VoIP of mobile, fixed fusion and the key component of multimedia solution, which can specifically be exhaled by agency It is conversation control function (Proxy-Call Session Control Function, P_CSCF), Interrogating CSCF Functional entitys and the home subscribers such as (Interrogation-CSCF, I_CSCF), serving CSCF (Serving-CSCF, S_CSCF) Server (Home Subscriber Server, HSS) forms, and wherein I-CSCF connects S_CSCF and HSS, I- by Cx interface CSCF connects P_CSCF by Mw, and S-CSCF connects P_CSCF by SIP interface, and S_CSCF connects HSS by Cx interface, S_CSCF connects RCS AS by ISC (SIP) interface.Above-mentioned RCS AS can specifically be to provide the IM of group management function Server, the RCS AS can directly be connect with user by MSRP interfaces, realize RCS lists/regulation management, personal static number According to business functions such as update, mandate, chat media, file transmission.Such as in RCS group chat services, RCS AS and chat group In user establish MSRP channels, and the MSRP transmission group chat message based on foundation.Above-mentioned UE for example may include movement Mobile phone, tablet computer, personal digital assistant (Personal Digital Assistant, PDA), mobile internet device (Mobile Internet Device, MID), intelligent wearable device (such as smartwatch, Intelligent bracelet) each class of electronic devices.

In network architecture shown in Fig. 1, RCS AS are connect by the MSRP channels between calling subscribe and RCS AS first The group chat message for carrying CSI called subscriber identification collection that calling subscribe sends is received, secondly, RCS AS are according to CSI called subscriber identification collection Fractionation group chat message is M chat messages corresponding with M called subscriber, and finally, RCS AS are sent respectively to M called subscriber Corresponding chat messages in M chat messages.Due to the channel indexes of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID in mark include N number of user, and CSI called subscriber identification collection includes the M of M called subscriber A user identifier, M user identifier are M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, N For the integer more than 2, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create for calling subscribe and M called subscriber New chat group and new MSRP channels, you can the private chat for realizing calling subscribe and M called subscriber advantageously reduces RCS The Signalling exchange of AS and user, to improve chat group MSRP channels utilization rate, slow down the performance of RCS AS and user Loss.

The RCS AS involved in the embodiment of the present invention are described further below.Referring to Fig. 2, Fig. 2 is the present invention A kind of structural schematic diagram of RCS AS disclosed in embodiment.As shown in Fig. 2, the RCS AS may include：At least one processor 1001, for example, CPU, at least one network interface 1002, memory 1003, at least one communication bus 1004.Communication bus 1004 for realizing the connection communication between these components.Wherein, network interface 1002 includes wireless interface, further can be with Including wireline interface, wireless interface (also referred to as RF interfaces) wirelessly provides network interface function, root to RCS AS According to communication protocol (for example, wireless standard IEEEE802.11a, 802.11b, 802.11g, 802.11n or 802.15.1) and use The equipment such as family, S_CSCF are communicated, and wireline interface provides network interface by wired mode (for example, Ethernet cable) Energy.Memory 1003 may include high-speed RAM memory, it is also possible to further include nonvolatile memory (non-volatile Memory), a for example, at least magnetic disk storage.Memory 1003 optionally can be located remotely from aforementioned place comprising at least one Manage the storage device of device 1001.

In some embodiments, memory 1003 stores following element, executable modules or data structures, or Their subset of person or their superset：

Operating system 10031, including various system programs, hardware based for realizing various basic businesses and processing Task；

Application program 10032, including the various application programs such as equipment control service routine, device identification service program, are used In the various applied business of realization.

Specifically, processor 1001 executes following operation for calling the program stored in memory 1003：

Above-mentioned processor 1001 receives the calling subscribe by the MSRP channels between calling subscribe and the RCS AS The group chat message for carrying CSI called subscriber identification collection sent, wherein the MSRP between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in the channel indexes mark of channel include N number of user, the CSI called subscriber identification collection Include the M user identifier of M called subscriber, the M user identifier is removes institute in N number of user identifier of N number of user M user identifier except the user identifier of calling subscribe is stated, the N is the integer more than 2, and the M is positive integer, and described M is less than N-1；

Above-mentioned processor 1001 splits the group chat message according to the CSI called subscriber identification collection The corresponding M chat messages in family；

Above-mentioned processor 1001 sends the corresponding chat in the M chat messages to the M called subscriber and disappears respectively Breath.

As can be seen that RCS AS shown in Fig. 2 receive master by the MSRP channels between calling subscribe and RCS AS first It is user's group chat message for carrying CSI called subscriber identification collection sent, secondly, RCS AS are split according to CSI called subscriber identification collection Group chat message is M chat messages corresponding with M called subscriber, and finally, RCS AS send M items respectively to M called subscriber Corresponding chat messages in chat messages.Since the channel indexes of the MSRP channels between above-mentioned calling subscribe and RCS AS identify In the corresponding chat groups of chat group ID include N number of user, CSI called subscriber identification collection includes the M use of M called subscriber Family identifies, and M user identifier is M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, and N is big In 2 integer, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create newly for calling subscribe and M called subscriber Chat group and new MSRP channels, you can realize calling subscribe and M called subscriber private chat, advantageously reduce RCS AS and The Signalling exchange of user, to improve chat group MSRP channels utilization rate, slow down the performance loss of RCS AS and user.

Optionally, in the embodiment of the present invention, above-mentioned processor 1001 splits the group according to the CSI called subscriber identification collection Merely message, which is the specific implementation of M chat messages corresponding with the M called subscriber, to be：

Above-mentioned processor 1001 merges the M user identifier and the calling subscribe that the CSI called subscriber identification is concentrated first User identifier be private chat group identification collection；Secondly, above-mentioned processor 1001 is according to the address information to prestore and MSRP channels Channel indexes mark between mapping relations, and obtain the CSI called subscriber identification concentrate M address information, determine institute The M channel indexes mark of M MSRP channel between the corresponding M called subscriber of M address information and the RCS AS is stated, Wherein, the channel indexes mark includes the user identifier of the chat group ID and called subscriber；Finally, above-mentioned processor 1001 based on chat message, the private chat group identification collection and the M channel indexes mark life in the group chat message At the corresponding M chat messages of the M called subscriber.

Optionally, in the embodiment of the present invention, above-mentioned processor 1001 sends the M items respectively to the M called subscriber The specific implementation of corresponding chat messages in chat messages can be：Above-mentioned processor 1001 is believed by the M MSRP Road sends the corresponding chat messages in the M chat messages to the M called subscriber respectively.

Optionally, in the embodiment of the present invention, above-mentioned processor 1001 according to the CSI called subscriber identification collection described in splitting It is a to the M by the M MSRP channels after group chat message is M chat messages corresponding with the M called subscriber Before called subscriber sends the corresponding chat messages in the M chat messages respectively, the M called subscriber can also be obtained The M MSRP channel between the RCS AS.

Optionally, in the embodiment of the present invention, above-mentioned processor 1001 obtain the M called subscriber and the RCS AS it Between the specific implementation of M MSRP channel can be：Above-mentioned processor 1001 extracts N number of user and the RCS AS Between N number of MSRP channels and N number of MSRP channels N number of channel indexes mark between mapping relations list；With the M A channel indexes are identified as inquiry foundation, inquire the mapping relations list to obtain the M called subscriber and the RCS M MSRP channel between AS.

Optionally, in the embodiment of the present invention, above-mentioned processor 1001 passes through between calling subscribe and the RCS AS Before MSRP channels receive the group chat message for carrying CSI called subscriber identification collection that the calling subscribe sends, can also be performed with Lower operation is to activate above-mentioned chat group and create N number of MSRP channels between N number of user in chat group and RCS AS, tool Body includes the following steps：

Above-mentioned processor 1001 receives the group's activation request for carrying chat group ID that the calling subscribe sends；

Above-mentioned processor 1001 responds group's activation request, after sending response message to the calling subscribe, wound The MSRP channels between the calling subscribe and the RCS AS are built and preserve, and according to the chat group ID and the caller The user identifier of user generates the channel indexes mark of the MSRP channels between the calling subscribe and the RCS AS；

The caller is removed in N number of user that above-mentioned processor 1001 includes to the corresponding chat groups of the chat group ID N-1 user except user sends group's activation request respectively；

Above-mentioned processor 1001 receives group's activation request described in each user response in the N-1 user and sends out After the response message sent, the MSRP channels between each user and the RCS AS are created, according to the chat group The user identifier of group ID and each user generate the MSRP channels between each user and the RCS AS Channel indexes identify；

Wherein, each above-mentioned user include in above-mentioned N-1 user be first user, second user ... N-1 user；

Above-mentioned processor 1001 creates the MSRP channels between each user and the RCS AS, is chatted according to described The user identifier of its group ID and each user generate the MSRP letters between each user and the RCS AS The specific implementation of the channel indexes mark in road for example may include steps of：

Above-mentioned processor 1001 creates the first MSRP channels between above-mentioned first user and above-mentioned RCS AS, according to upper The user identifier for stating chat group ID and above-mentioned first user generates the first channel indexes mark of above-mentioned first MSRP channels；

Above-mentioned processor 1001 creates the 2nd MSRP channels between above-mentioned second user and above-mentioned RCS AS, according to upper The user identifier for stating chat group ID and above-mentioned second user generates the second channel index mark of above-mentioned 2nd MSRP channels；

Above-mentioned processor 1001 repeats the generating process of above-mentioned channel creation and channel indexes mark, until above-mentioned N-1 The N-1 channel indexes mark of N-1 MSRP channel and the N-1 MSRP channel between user and RCS AS has all created At.

MSRP channels between the calling subscribe and the RCS AS of the above-mentioned processor 1001 based on establishment create MSRP channels between each described user and the RCS AS and the calling subscribe and the RCS AS that generate it Between MSRP channels channel indexes mark, generate each described user and the RCS AS between MSRP channels letter Road index mark creates the N number of of N number of MSRP channels between N number of user and the RCS AS and N number of MSRP channels Mapping relations list between channel indexes mark, wherein N number of MSRP channels include the calling subscribe and the RCS The MSRP channels between MSRP channels and each described user and the RCS AS between AS.

The network architecture of the embodiment of the present invention and RCS AS are described above, the present invention is described further below Method disclosed in embodiment.Referring to Fig. 3, Fig. 3 is disclosed by the embodiments of the present invention a kind of to realize that the flow of the method for private chat is shown It is intended to.Wherein, method described in Fig. 3 is described from the sides RCS AS.As shown in figure 3, this method may include Following steps：

S301, RCS AS receive the calling subscribe by the MSRP channels between calling subscribe and the RCS AS and send The group chat message for carrying CSI called subscriber identification collection, wherein the MSRP channels between the calling subscribe and the RCS AS Channel indexes mark in the corresponding chat groups of chat group ID include N number of user, the CSI called subscriber identification collection includes M The M user identifier of a called subscriber, the M user identifier be N number of user N number of user identifier in remove the caller M user identifier except the user identifier of user, the N are the integer more than 2, and the M is positive integer, and the M is less than N-1；

In the embodiment of the present invention, above-mentioned CSI called subscriber identification collection is the new field in above-mentioned group chat message, the called use It can specifically include the user identifier and M address corresponding with M called subscriber letter of M called subscriber in the identification sets of family Breath.Wherein, above-mentioned user identifier for example can be smart card (Subscriber Identity Module, SIM) card number of UE, Or international mobile subscriber identity (International Mobile Subscriber Identification Number, IMSI), alternatively, mobile station identity number (usually said phone number) (Mobile Subscriber International ISDN/PSTN number, MSISDN) etc..

It is to be called with the M that S302, above-mentioned RCS AS split the group chat message according to the CSI called subscriber identification collection The corresponding M chat messages of user；

In the embodiment of the present invention, above-mentioned RCS AS identify that group chat message includes new field CSI called subscriber identification first Then collection integrates according to the CSI called subscriber identification and splits above-mentioned group chat message as M chat messages.

In the specific implementation, above-mentioned RCS AS split the group chat message according to the CSI called subscriber identification collection is and the M The specific implementation of the corresponding M chat messages of a called subscriber for example can be：

Above-mentioned RCS AS merge the use of M user identifier and the calling subscribe that the CSI called subscriber identification is concentrated first Family is identified as private chat group identification collection；Secondly, RCS AS are identified according to the address information to prestore and the channel indexes of MSRP channels Between mapping relations, and M address information that the CSI called subscriber identification that obtains is concentrated determine that the M address is believed Cease the M channel indexes mark of M MSRP channel between corresponding M called subscriber and the RCS AS, wherein the letter Road index mark includes the user identifier of the chat group ID and called subscriber；Finally, RCS AS are based on the group chat message In chat message, the private chat group identification collection and M channel indexes mark generate M called subscriber correspondence M chat messages.

S303, above-mentioned RCS AS send the corresponding chat in the M chat messages to the M called subscriber and disappear respectively Breath.

In the embodiment of the present invention, above-mentioned RCS AS are sent to the M called subscriber in the M chat messages respectively Accordingly the specific implementation of chat messages is：

Method described in implementing Fig. 3, RCS AS are received by the MSRP channels between calling subscribe and RCS AS first The group chat message for carrying CSI called subscriber identification collection that calling subscribe sends, secondly, RCS AS are torn open according to CSI called subscriber identification collection It is M chat messages corresponding with M called subscriber to divide group chat message, and finally, RCS AS send M respectively to M called subscriber Corresponding chat messages in chat messages.Due to the channel indexes mark of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID in knowledge include N number of user, and CSI called subscriber identification collection includes M of M called subscriber User identifier, M user identifier are M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, and N is Integer more than 2, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create newly for calling subscribe and M called subscriber Chat group and new MSRP channels, you can realize calling subscribe and M called subscriber private chat, advantageously reduce RCS AS With the Signalling exchange of user, to improve chat group MSRP channels utilization rate, slow down the performance damage of RCS AS and user Consumption.

Optionally, in the embodiment of the present invention, above-mentioned RCS AS split the group chat according to the CSI called subscriber identification collection and disappear After breath is M chat messages corresponding with the M called subscriber, the RCS AS are by the M MSRP channels to institute Before stating the corresponding chat messages that M called subscriber is sent respectively in the M chat messages, above-mentioned RCS AS can also be obtained M MSRP channel between the M called subscriber and the RCS AS.

In the specific implementation, above-mentioned RCS AS obtain M MSRP channel between the M called subscriber and the RCS AS Specific implementation can be：

Above-mentioned RCS AS extract N number of MSRP channels and N number of MSRP letters between N number of user and the RCS AS Mapping relations list between N number of channel indexes mark in road；It is identified as inquiry foundation with the M channel indexes, inquires institute Mapping relations list is stated to obtain M MSRP channel between the M called subscriber and the RCS AS.

Optionally, in the embodiment of the present invention, above-mentioned RCS AS are believed by the MSRP between calling subscribe and the RCS AS Before road receives the group chat message for carrying CSI called subscriber identification collection that the calling subscribe sends, following operation can also be performed To activate above-mentioned chat group and create N number of MSRP channels between N number of user in chat group and RCS AS, specifically include Following steps：

Above-mentioned RCS AS receive the group's activation request for carrying chat group ID that the calling subscribe sends；

Above-mentioned RCS AS create the MSRP channels between each user and the RCS AS, according to the chat group The user identifier of group ID and each user generate the MSRP channels between each user and the RCS AS The specific implementation of channel indexes mark for example may include steps of：

RCS AS create the first MSRP channels between above-mentioned first user and above-mentioned RCS AS, according to above-mentioned chat group The user identifier of group ID and above-mentioned first user generate the first channel indexes mark of above-mentioned first MSRP channels；

RCS AS create the 2nd MSRP channels between above-mentioned second user and above-mentioned RCS AS, according to above-mentioned chat group The user identifier of group ID and above-mentioned second user generate the second channel index mark of above-mentioned 2nd MSRP channels；

RCS AS repeat the generating process of above-mentioned channel creation and channel indexes mark, until above-mentioned N-1 user and RCS The N-1 channel indexes mark of N-1 MSRP channel and the N-1 MSRP channel between AS, which all creates, to be completed.

Referring to Fig. 4, Fig. 4 is the flow diagram of another method for realizing private chat disclosed by the embodiments of the present invention.Its In, method described in Fig. 4 is described from the sides RCS AS.As shown in figure 4, this method may comprise steps of：

S401, RCS AS receive the calling subscribe by the MSRP channels between calling subscribe and the RCS AS and send The group chat message for carrying CSI called subscriber identification collection, wherein the MSRP channels between the calling subscribe and the RCS AS Channel indexes mark in the corresponding chat groups of chat group ID include N number of user, the CSI called subscriber identification collection includes M The M user identifier of a called subscriber, the M user identifier be N number of user N number of user identifier in remove the caller M user identifier except the user identifier of user, the N are the integer more than 2, and the M is positive integer, and the M is less than N-1；

In the embodiment of the present invention, in the embodiment of the present invention, above-mentioned CSI called subscriber identification collection is new in above-mentioned group chat message Increase field, the CSI called subscriber identification concentrate the user identifier that can specifically include M called subscriber and with the M called subscriber couple The M address information answered.Wherein, above-mentioned user identifier for example can be the SIM card number or IMSI number of UE, alternatively, Mobile Subscriber International ISDN Number etc..

S402, above-mentioned RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and the calling subscribe's User identifier is private chat group identification collection；

S403, above-mentioned RCS AS are closed according to the mapping between the address information to prestore and the channel indexes of MSRP channels mark It is, and the M address information that the CSI called subscriber identification obtained is concentrated, determines the corresponding M quilt of the M address information M channel indexes of M MSRP channel between user and the RCS AS are made to identify, wherein the channel indexes mark packet Include the user identifier of the chat group ID and called subscriber；

S404, above-mentioned RCS AS are based on chat message, the private chat group identification collection and the institute in the group chat message It states M channel indexes mark and generates the corresponding M chat messages of the M called subscriber.

S405, above-mentioned RCS AS send the corresponding chat in the M chat messages to the M called subscriber and disappear respectively Breath.

In the embodiment of the present invention, above-mentioned RCS AS are sent to the M called subscriber in the M chat messages respectively Accordingly the specific implementation of chat messages is：RCS AS are sent out by the M MSRP channels to the M called subscriber respectively Send the corresponding chat messages in the M chat messages.

By implementing method described in Fig. 4, RCS AS pass through the MSRP channels between calling subscribe and RCS AS first The group chat message for carrying CSI called subscriber identification collection that calling subscribe sends is received, secondly, RCS AS are according to CSI called subscriber identification It is M chat messages corresponding with M called subscriber that collection, which splits group chat message, and finally, RCS AS are sent out respectively to M called subscriber Send the corresponding chat messages in M chat messages.Due to the channel rope of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID during tendering is known include N number of user, and CSI called subscriber identification collection includes M called subscriber M user identifier, M user identifier are M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, N For the integer more than 2, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create for calling subscribe and M called subscriber New chat group and new MSRP channels, you can the private chat for realizing calling subscribe and M called subscriber advantageously reduces RCS The Signalling exchange of AS and user, to improve chat group MSRP channels utilization rate, slow down the performance of RCS AS and user Loss.

In the specific implementation, M MSRP channel between the above-mentioned acquisition M called subscriber and the RCS AS is specific Embodiment for example can be：RCS AS extract N number of MSRP channels and the N between N number of user and the RCS AS Mapping relations list between N number of channel indexes mark of a MSRP channels；With the M channel indexes be identified as inquiry according to According to inquiring the mapping relations list to obtain M MSRP channel between the M called subscriber and the RCS AS.

Fig. 5 is referred to, Fig. 5 is the flow diagram of the method for another realization private chat disclosed by the embodiments of the present invention.Its In, method described in Fig. 5 is described from the sides RCS AS.As shown in figure 5, this method may comprise steps of：

S501, RCS AS receive the calling subscribe by the MSRP channels between calling subscribe and the RCS AS and send The group chat message for carrying CSI called subscriber identification collection, wherein the MSRP channels between the calling subscribe and the RCS AS Channel indexes mark in the corresponding chat groups of chat group ID include N number of user, the CSI called subscriber identification collection includes M The M user identifier of a called subscriber, the M user identifier be N number of user N number of user identifier in remove the caller M user identifier except the user identifier of user, the N are the integer more than 2, and the M is positive integer, and the M is less than N-1；

S502, above-mentioned RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and the calling subscribe's User identifier is private chat group identification collection；

S503, above-mentioned RCS AS are closed according to the mapping between the address information to prestore and the channel indexes of MSRP channels mark It is, and the M address information that the CSI called subscriber identification obtained is concentrated, determines the corresponding M quilt of the M address information M channel indexes of M MSRP channel between user and the RCS AS are made to identify, wherein the channel indexes mark packet Include the user identifier of the chat group ID and called subscriber；

S504, above-mentioned RCS AS are based on chat message, the private chat group identification collection and the institute in the group chat message It states M channel indexes mark and generates the corresponding M chat messages of the M called subscriber.

S505, above-mentioned RCS AS obtain M MSRP channel between the M called subscriber and the RCS AS；

In the embodiment of the present invention, above-mentioned RCS AS obtain M MSRP between the M called subscriber and the RCS AS The specific implementation of channel can be：Above-mentioned RCS AS extract the letters of N number of MSRP between N number of user and the RCS AS Mapping relations list between N number of channel indexes of road and N number of MSRP channels mark；It is identified with the M channel indexes To inquire foundation, the mapping relations list is inquired to obtain M MSRP between the M called subscriber and the RCS AS Channel.

S506, above-mentioned RCS AS send the M items to the M called subscriber by the M MSRP channels and chat respectively Corresponding chat messages in its message.

Implement method described in Fig. 5, RCS AS are received by the MSRP channels between calling subscribe and RCS AS first The group chat message for carrying CSI called subscriber identification collection that calling subscribe sends, secondly, RCS AS are torn open according to CSI called subscriber identification collection It is M chat messages corresponding with M called subscriber to divide group chat message, and finally, RCS AS send M respectively to M called subscriber Corresponding chat messages in chat messages.Due to the channel indexes mark of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID in knowledge include N number of user, and CSI called subscriber identification collection includes M of M called subscriber User identifier, M user identifier are M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, and N is Integer more than 2, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create newly for calling subscribe and M called subscriber Chat group and new MSRP channels, you can realize calling subscribe and M called subscriber private chat, advantageously reduce RCS AS With the Signalling exchange of user, to improve chat group MSRP channels utilization rate, slow down the performance damage of RCS AS and user Consumption.

Optionally, in the embodiment of the present invention, above-mentioned RCS AS RCS AS pass through between calling subscribe and the RCS AS Before MSRP channels receive the group chat message for carrying CSI called subscriber identification collection that the calling subscribe sends, can also be performed with Lower operation is to activate above-mentioned chat group and create N number of MSRP channels between N number of user in chat group and RCS AS, tool Body includes the following steps：

To further describe a kind of method for realizing private chat disclosed by the embodiments of the present invention in conjunction with specific example chat group, Assuming that RCS AS generate chat group ID according to the group creating instruction for carrying user identifier collection received, and in group It creates in response and chat group ID is returned into group user (including user A, user B, user C and user D), group uses Family preserves above-mentioned chat group ID.And it is created in above-mentioned RCS AS in above-mentioned chat group between RCS AS and user A MSRP the channels C and RCS between MSRP channels B, RCS AS and user C between MSRP channels A, RCS AS and user B MSRP channel D between AS and user D, and be stored with and believe including above-mentioned MSRP channels A, MSRP channel B, MSRP channel C, MSRP The mapping relations list of road D and channel indexes mark A, channel indexes mark B, channel indexes mark C, channel indexes mark D.

Fig. 6 is referred to, Fig. 6 is that the network architecture shown in FIG. 1 realization above-mentioned example disclosed by the embodiments of the present invention that is based on is chatted The flow diagram of the method for the private chat of user A, user B and user C in its group.Wherein, method shown in fig. 6 be from User A, RCS AS and user B, the more sides user C are described.As shown in fig. 6, this method may comprise steps of：

S601, user A send the group chat message for carrying CSI called subscriber identification collection by MSRP channels A to RCS AS.

In the embodiment of the present invention, above-mentioned group chat message is initiated by user A, therefore the realization private chat disclosed in the present embodiment In the execution flow of method, user A is calling subscribe, and user B, user C are respectively the first called subscriber and the second called subscriber； The channel indexes mark A of above-mentioned MSRP channels A includes the user identifier userA of chat group ID and user A, above-mentioned called subscriber Identification sets include the user identifier userB of the first called subscriber and the user identifier userC of the second called subscriber, and with first Corresponding first address information of called subscriber and the second address information corresponding with the second called subscriber, i.e., above-mentioned group chat message is only It can be checked by user A, user B and user C, to realize the private chat between user A, user B and user C.

Wherein, the exemplary field of above-mentioned group chat message is as follows.

The above-mentioned CSI called subscriber identification collection that resource-list header field fields in above-mentioned group chat message include, following institute Show

Above-mentioned field<Entry uri=" sip:userB@huawei.com"cp:Capacity=" to "/>Include using The family B i.e. user identifier userB of the first called subscriber and address information sip corresponding with the first called subscriber:userB@ huawei.com"cp:Capacity=" to "/；Above-mentioned field<Entry uri=" sip:userC@huawei.com"cp: Capacity=" to "/>Including the user C i.e. user identifier userC of the second called subscriber and corresponding with the second called subscriber Address information sip:userC@huawei.com"cp:Capacity=" to "/.

S602, RCS AS receives above-mentioned group chat message, merge user identifier userB that above-mentioned CSI called subscriber identification concentrates, The user identifier userA of user identifier userC and above-mentioned user A are private chat group identification collection；

S603, RCS AS according to the address information to prestore and the channel indexes of MSRP channels mark between mapping relations, And the address information that the CSI called subscriber identification obtained is concentrated, determine the channel rope of the MSRP channels B between user B and RCS AS The channel indexes that the MSRP channels C between B and user C and RCS AS is known in tendering identify C.

S604, RCS AS are based on chat message, above-mentioned private chat group identification collection and the channel rope in above-mentioned group chat message Tendering knows B and generates corresponding first chat messages of user B, based on the chat message in above-mentioned group chat message, above-mentioned private chat group Identification sets and channel indexes mark C generate corresponding second chat messages of user C.

MSRP channels A, MSRP channel B, MSRP channel C, MSRP channel D and channel rope that S605, RCS AS extractions prestore The mapping relations list of A, channel indexes mark B, channel indexes mark C, channel indexes mark D are known in tendering；

S606, RCS AS are inquiry foundation with channel indexes mark B, inquire above-mentioned mapping relations list, obtain channel rope The corresponding MSRP channels B of B are known in tendering.

S607, RCS AS send the first chat messages by MSRP channels B to user B；

S608, user B receive the first chat messages by MSRP channels B, show the first chat messages on the display screen In chat message；

S609, user B return to 200OK responses to RCS AS.

S610, RCS AS are inquiry foundation with channel indexes mark C, inquire above-mentioned mapping relations list, obtain channel rope The corresponding MSRP channels C of C are known in tendering.

S611, RCS AS send the second chat messages by MSRP channels C to user C；

S612, user C receive the second chat messages by MSRP channels C, show the second chat messages on the display screen In chat message；

S613, user C return to 200OK responses to RCS AS.

As can be seen that implementing method described in Fig. 6, RCS AS pass through the MSRP between calling subscribe and RCS AS first Channel receives the group chat message for carrying CSI called subscriber identification collection that calling subscribe sends, and secondly, RCS AS are according to called subscriber It is M chat messages corresponding with M called subscriber that identification sets, which split group chat message, and finally, RCS AS divide to M called subscriber Corresponding chat messages that Fa Song be in M chat messages.Due to the letter of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID in road index mark include N number of user, and CSI called subscriber identification collection includes M called use The M user identifier at family, M user identifier are the M user mark in addition to the user identifier of calling subscribe in N number of user identifier Know, N is the integer more than 2, and M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to be calling subscribe and M called subscriber Create new chat group and new MSRP channels, you can the private chat for realizing calling subscribe and M called subscriber advantageously reduces The Signalling exchange of RCS AS and user, to improve chat group MSRP channels utilization rate, slow down RCS AS and user Performance is lost.

Optionally, in the embodiment of the present invention, above-mentioned user B receives the first chat messages by MSRP channels B, in display screen After showing the chat message in the first chat messages on curtain, when user B detects that user grasps the selection of above-mentioned chat message When making, it can also show that the title for the corresponding user of user identifier that above-mentioned private chat group identification is concentrated is (old on the display screen Lee, Lao Wang, Lao Zhao)；User B can also obtain Lao Wang and be directed to the return information that the group chat message is inputted, and be believed based on the reply Breath and above-mentioned private chat group identification collection, which generate, replys group chat information and sending to RCS AS, to chat the reply by RCS AS Its message distribution is to user A and user C.

For example, the status diagram for showing screen including example chat group window in conjunction with shown in Fig. 7, it is assumed that It is " This is a privitate that user B receives the first chat message in the first chat messages of RCS AS distributions first Message ", user B show first chat message on the display screen；Secondly, when user B detect user for this When the selection operation of one chat message, displaying includes all users that current private chat group identification is concentrated on above-mentioned display screen Identify the title (Lao Li, Lao Wang, Lao Zhao) of corresponding user；Again, user B obtains the second chat message input by user " Hello " generates the second group chat message based on second chat message and sends the second group chat message, RCS AS to RCS AS The second group chat message is split after chat messages A and chat messages B, to send chat messages A to user A first, user A is received To after chat messages A, the chat message " Hello " in chat messages A is shown on the display screen.

Referring to Fig. 8, Fig. 8 is the structural schematic diagram of RCS AS disclosed by the embodiments of the present invention a kind of.As shown in figure 8, should RCS AS may include the first receiving unit 801, split cells 802, Dispatching Unit 803, wherein：

Above-mentioned first receiving unit 801, for receiving institute by the MSRP channels between calling subscribe and the RCS AS State the group chat message for carrying CSI called subscriber identification collection of calling subscribe's transmission, wherein the calling subscribe and the RCS AS Between MSRP channels channel indexes mark in the corresponding chat groups of chat group ID include N number of user, it is described called User identifier collection includes the M user identifier of M called subscriber, and the M user identifier is N number of user of N number of user M user identifier in mark in addition to the user identifier of the calling subscribe, the N are the integer more than 2, and the M is just Integer, and the M is less than N-1；

In the embodiment of the present invention, above-mentioned CSI called subscriber identification collection is the new field in above-mentioned group chat message, the called use It can specifically include the user identifier and M address corresponding with M called subscriber letter of M called subscriber in the identification sets of family Breath.

Above-mentioned split cells 802, for being split according to the CSI called subscriber identification collection, the group chat message is and the M is a The corresponding M chat messages of called subscriber；

In the embodiment of the present invention, above-mentioned split cells 802 splits the group chat message according to the CSI called subscriber identification collection Specific implementation mode for M chat messages corresponding with the M called subscriber can be：

Above-mentioned split cells 802 merges the M user identifier that the CSI called subscriber identification is concentrated and the calling subscribe's User identifier is private chat group identification collection；According to the mapping between the address information to prestore and the channel indexes of MSRP channels mark Relationship, and M address information that the CSI called subscriber identification that obtains is concentrated, determine that the corresponding M of the M address information is a M channel indexes of M MSRP channel between called subscriber and the RCS AS identify, wherein the channel indexes mark Include the user identifier of the chat group ID and called subscriber；Based on the chat message in the group chat message, the private chat Group identification collection and M channel indexes mark generate the corresponding M chat messages of the M called subscriber.

Above-mentioned Dispatching Unit 803, it is corresponding in the M chat messages for being sent respectively to the M called subscriber Chat messages.

In the embodiment of the present invention, above-mentioned Dispatching Unit 803 sends the M items chat to the M called subscriber and disappears respectively The specific implementation of corresponding chat messages in breath is：Above-mentioned Dispatching Unit 803 is by the M MSRP channels to institute It states M called subscriber and sends corresponding chat messages in the M chat messages respectively.

It is understood that the function of each function module of the RCS AS of the embodiment of the present invention can be implemented according to the above method Method specific implementation in example, specific implementation process are referred to the associated description of above method embodiment, no longer superfluous herein It states.

As can be seen that RCS AS shown in Fig. 8 receive master by the MSRP channels between calling subscribe and RCS AS first It is user's group chat message for carrying CSI called subscriber identification collection sent, secondly, RCS AS are split according to CSI called subscriber identification collection Group chat message is M chat messages corresponding with M called subscriber, and finally, RCS AS send M items respectively to M called subscriber Corresponding chat messages in chat messages.Since the channel indexes of the MSRP channels between above-mentioned calling subscribe and RCS AS identify In the corresponding chat groups of chat group ID include N number of user, CSI called subscriber identification collection includes the M use of M called subscriber Family identifies, and M user identifier is M user identifier in N number of user identifier in addition to the user identifier of calling subscribe, and N is big In 2 integer, M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to create newly for calling subscribe and M called subscriber Chat group and new MSRP channels, you can realize calling subscribe and M called subscriber private chat, advantageously reduce RCS AS and The Signalling exchange of user, to improve chat group MSRP channels utilization rate, slow down the performance loss of RCS AS and user.

Optionally, in the embodiment of the present invention, above-mentioned RCS AS further include：

In the specific implementation, above-mentioned acquiring unit is specifically used for：

Extract N number of letter of the N number of MSRP channels and N number of MSRP channels between N number of user and the RCS AS Mapping relations list between road index mark；It is identified as inquiry foundation with the M channel indexes, inquires the mapping relations List is to obtain M MSRP channel between the M called subscriber and the RCS AS.

The RCS AS further include：

Above-mentioned channel creation unit creates the MSRP channels between each user and the RCS AS, according to described The user identifier of chat group ID and each user generate the MSRP between each user and the RCS AS The specific implementation of the channel indexes mark of channel for example may include steps of：

Channel creation unit creates the first MSRP channels between above-mentioned first user and above-mentioned RCS AS, according to above-mentioned The user identifier of chat group ID and above-mentioned first user generate the first channel indexes mark of above-mentioned first MSRP channels；

Channel creation unit creates the 2nd MSRP channels between above-mentioned second user and above-mentioned RCS AS, according to above-mentioned The user identifier of chat group ID and above-mentioned second user generate the second channel index mark of above-mentioned 2nd MSRP channels；

Channel creation unit repeats the generating process of above-mentioned channel creation and channel indexes mark, until above-mentioned N-1 use The N-1 channel indexes mark of N-1 MSRP channel and the N-1 MSRP channel between family and RCS AS has all created At.

Fig. 9 is referred to, Fig. 9 is a kind of configuration diagram of system for realizing private chat disclosed by the embodiments of the present invention, is used for Execute the method disclosed by the embodiments of the present invention for realizing private chat.As shown in figure 9, the system of the realization private chat include calling subscribe, RCS AS, wherein：

Above-mentioned calling subscribe, for passing through the MSRP channels between the calling subscribe and the RCS AS to the RCS AS sends the group chat message for carrying CSI called subscriber identification collection, wherein the MSRP between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in the channel indexes mark of channel include N number of user, the CSI called subscriber identification collection Include the M user identifier of M called subscriber, the M user identifier is removes institute in N number of user identifier of N number of user M user identifier except the user identifier of calling subscribe is stated, the N is the integer more than 2, and the M is positive integer, and described M is less than N-1；

Above-mentioned RCS AS split the group after receiving the group chat message according to the CSI called subscriber identification collection Merely message is M chat messages corresponding with the M called subscriber, and sends the M items respectively to the M called subscriber Corresponding chat messages in chat messages.

In the embodiment of the present invention, above-mentioned RCS AS according to the CSI called subscriber identification collection split the group chat message for institute The concrete mode for stating the corresponding M chat messages of M called subscriber is：

Optionally, in the embodiment of the present invention, the RCS AS send the M items chat respectively to the M called subscriber The concrete mode of corresponding chat messages in message is：

Optionally, in the embodiment of the present invention, the RCS AS are additionally operable to according to described in CSI called subscriber identification collection fractionation It is a to the M by the M MSRP channels after group chat message is M chat messages corresponding with the M called subscriber Before called subscriber sends the corresponding chat messages in the M chat messages respectively, obtain the M called subscriber with it is described M MSRP channel between RCS AS.

Optionally, in the embodiment of the present invention, the RCS AS are obtained between the M called subscriber and the RCS AS The concrete mode of M MSRP channel is：

Optionally, in the embodiment of the present invention,

In the system shown in Fig. 9 for realizing private chat, RCS AS are believed by the MSRP between calling subscribe and RCS AS first Road receives the group chat message for carrying CSI called subscriber identification collection that calling subscribe sends, and secondly, RCS AS are marked according to called subscriber It is M chat messages corresponding with M called subscriber to know collection to split group chat message, and finally, RCS AS distinguish to M called subscriber Send the corresponding chat messages in M chat messages.Due to the channel of the MSRP channels between above-mentioned calling subscribe and RCS AS The corresponding chat groups of chat group ID in index mark include N number of user, and CSI called subscriber identification collection includes M called subscriber M user identifier, M user identifier is that M user in N number of user identifier in addition to the user identifier of calling subscribe marks Know, N is the integer more than 2, and M is positive integer, and M is less than N-1, it is seen then that RCS AS are not necessarily to be calling subscribe and M called subscriber Create new chat group and new MSRP channels, you can the private chat for realizing calling subscribe and M called subscriber advantageously reduces The Signalling exchange of RCS AS and user, to improve chat group MSRP channels utilization rate, slow down RCS AS and user Performance is lost.

It should be noted that for each method embodiment above-mentioned, for simple description, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence because According to the present invention, certain steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know It knows, embodiment described in this description belongs to preferred embodiment, and involved action and module are not necessarily of the invention It is necessary.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, it may refer to the associated description of other embodiment.

In several embodiments provided herein, it should be understood that disclosed device, it can be by another way It realizes.For example, the apparatus embodiments described above are merely exemplary, for example, the unit division, it is only a kind of Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, Can be electrical or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code Medium.

The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these Modification or replacement, the range for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.

Claims

1. a kind of method for realizing private chat, which is characterized in that including：

Rich communication external member RCS application server ASs pass through described in the MSRP channels reception between calling subscribe and the RCS AS The group chat message for carrying CSI called subscriber identification collection that calling subscribe sends, wherein the calling subscribe and the RCS AS it Between MSRP channels channel indexes mark in the corresponding chat groups of chat group ID include N number of user, the called use Family identification sets include the M user identifier of M called subscriber, and the M user identifier is that N number of user of N number of user marks M user identifier in knowledge in addition to the user identifier of the calling subscribe, the N are the integer more than 2, and the M is just whole Number, and the M is less than N-1；

It is corresponding with the M called subscriber that the RCS AS split the group chat message according to the CSI called subscriber identification collection M chat messages；

The RCS AS send the corresponding chat messages in the M chat messages to the M called subscriber respectively；

Wherein, the RCS AS split the group chat message according to the CSI called subscriber identification collection and are and the M called subscriber Corresponding M chat messages, including：

The RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and the user identifier of the calling subscribe is Private chat group identification collection；

The RCS AS are according to the mapping relations between the address information to prestore and the channel indexes of MSRP channels mark, and obtain The M address information that the CSI called subscriber identification that takes is concentrated, determine the corresponding M called subscriber of the M address information and M channel indexes of M MSRP channel between the RCS AS identify, wherein the channel indexes mark includes described chats The user identifier of its group ID and called subscriber；

The RCS AS are based on chat message, the private chat group identification collection and the M channel in the group chat message Index mark generates the corresponding M chat messages of the M called subscriber.

2. according to the method described in claim 1, it is characterized in that, the RCS AS are sent respectively to the M called subscriber Corresponding chat messages in the M chat messages, including：

The RCS AS are sent to the M called subscriber in the M chat messages respectively by the M MSRP channels Corresponding chat messages.

3. according to the method described in claim 2, it is characterized in that, the RCS AS are split according to the CSI called subscriber identification collection The group chat message is after M chat messages corresponding with the M called subscriber, the RCS AS passes through the M Before MSRP channels send the corresponding chat messages in the M chat messages to the M called subscriber respectively, the method Further include：

4. according to the method described in claim 3, it is characterized in that, the RCS AS obtain the M called subscriber with it is described M MSRP channel between RCS AS, including：

The RCS AS extract N number of MSRP channels between N number of user and the RCS AS and N number of MSRP channels Mapping relations list between N number of channel indexes mark；

The RCS AS are identified as inquiry foundation with the M channel indexes, inquire the mapping relations list to obtain the M M MSRP channel between a called subscriber and the RCS AS.

5. according to claim 1-4 any one of them methods, which is characterized in that the RCS AS by calling subscribe with it is described Before MSRP channels between RCS AS receive the group chat message for carrying CSI called subscriber identification collection that the calling subscribe sends, The method further includes：

The RCS AS respond group's activation request and create and preserve after sending response message to the calling subscribe MSRP channels between the calling subscribe and the RCS AS, and according to the use of the chat group ID and the calling subscribe The channel indexes that family mark generates the MSRP channels between the calling subscribe and the RCS AS identify；

In N number of user that the RCS AS include to the corresponding chat groups of the chat group ID in addition to the calling subscribe N-1 user send group activation request respectively；

The RCS AS receive group's activation request described in each user response in the N-1 user and the response of transmission After message, each user in the N-1 user and the MSRP channels between the RCS AS are created, is chatted according to described The user identifier of its group ID and each user in the N-1 user generate each use in the N-1 user The channel indexes of MSRP channels between family and the RCS AS identify；

The N-1 of MSRP channels, establishment between the calling subscribe and the RCS AS of the RCS AS based on establishment MSRP channels between each user and the RCS AS in a user and the calling subscribe that generates with it is described The channel indexes mark of MSRP channels between RCS AS, each user in the N-1 user generated and the RCS The channel indexes of MSRP channels between AS identify, create N number of MSRP channels between N number of user and the RCS AS and Mapping relations list between N number of channel indexes mark of N number of MSRP channels, wherein N number of MSRP channels include institute State each user in the MSRP channels and the N-1 user between calling subscribe and the RCS AS and the RCS AS Between MSRP channels.

6. a kind of RCS AS, which is characterized in that including：

First receiving unit, for receiving calling subscribe's hair by the MSRP channels between calling subscribe and the RCS AS That send carries the group chat message of CSI called subscriber identification collection, wherein the MSRP letters between the calling subscribe and the RCS AS The corresponding chat groups of chat group ID in the channel indexes mark in road include N number of user, the CSI called subscriber identification Ji Bao The M user identifier of M called subscriber is included, the M user identifier is described to be removed in N number of user identifier of N number of user M user identifier except the user identifier of calling subscribe, the N are integer more than 2, and the M is positive integer, and the M Less than N-1；

Split cells is and the M called subscriber couple for splitting the group chat message according to the CSI called subscriber identification collection The M chat messages answered；

Dispatching Unit, for sending the corresponding chat messages in the M chat messages respectively to the M called subscriber；

Wherein, the split cells is specifically used for：

The user identifier for merging M user identifier and the calling subscribe that the CSI called subscriber identification is concentrated is marked for private chat group Know collection；

According to the quilt of the mapping relations between the address information to prestore and the channel indexes of MSRP channels mark, and acquisition M address information for making user identifier concentrate, determines the corresponding M called subscriber of the M address information and the RCS AS Between M MSRP channel M channel indexes mark, wherein channel indexes mark include the chat group ID with The user identifier of called subscriber；

Based on chat message, the private chat group identification collection and the M channel indexes mark life in the group chat message At the corresponding M chat messages of the M called subscriber.

7. RCS AS according to claim 6, which is characterized in that the Dispatching Unit is specifically used for：

The corresponding chat in the M chat messages is sent respectively by the M MSRP channels to the M called subscriber to disappear Breath.

8. RCS AS according to claim 7, which is characterized in that the RCS AS further include：

Acquiring unit, for the split cells according to the CSI called subscriber identification collection split the group chat message be with it is described After the corresponding M chat messages of M called subscriber, the Dispatching Unit is called to the M by the M MSRP channels Before user sends the corresponding chat messages in the M chat messages respectively, the M called subscriber and the RCS are obtained M MSRP channel between AS.

9. RCS AS according to claim 8, which is characterized in that the acquiring unit is specifically used for：

Extract N number of channel rope of the N number of MSRP channels and N number of MSRP channels between N number of user and the RCS AS Mapping relations list between tendering knowledge；

It is identified as inquiry foundation with the M channel indexes, inquires the mapping relations list to obtain the M called subscriber The M MSRP channel between the RCS AS.

10. according to claim 6-9 any one of them RCS AS, which is characterized in that the RCS AS further include：

Second receiving unit activates request for receiving the group for carrying chat group ID that the calling subscribe sends；

Channel creation unit sends to the calling subscribe and responds for responding group's activation request in the RCS AS After message, the MSRP channels between the calling subscribe and the RCS AS are created and preserve, and according to the chat group The user identifier of ID and the calling subscribe generate the channel rope of the MSRP channels between the calling subscribe and the RCS AS Tendering is known；

The Dispatching Unit is additionally operable to remove the master into N number of user that the corresponding chat groups of the chat group ID include N-1 user except user is made to send group's activation request respectively；

The channel creation unit, each the user response institute being additionally operable in the RCS AS receive the N-1 user Group's activation request is stated after the response message of transmission, creates each user in the N-1 user and the RCS MSRP channels between AS are given birth to according to the user identifier of each user in the chat group ID and the N-1 user It is identified at the channel indexes of each user in the N-1 user and the MSRP channels between the RCS AS；

List creating unit for the calling subscribe based on establishment and the MSRP channels between the RCS AS, creates The calling subscribe of the MSRP channels and generation between each user and the RCS AS in the N-1 user MSRP channels between the RCS AS channel indexes mark, generate the N-1 user in each user and The channel indexes of MSRP channels between the RCS AS identify, and create N number of between N number of user and the RCS AS Mapping relations list between N number of channel indexes of MSRP channels and N number of MSRP channels mark, wherein N number of MSRP Channel include each user in MSRP channels and the N-1 user between the calling subscribe and the RCS AS with MSRP channels between the RCS AS.

11. a kind of system for realizing private chat, which is characterized in that the system for realizing private chat includes calling subscribe, RCS AS, In：

The calling subscribe, for being sent out to the RCS AS by the MSRP channels between the calling subscribe and the RCS AS Send the group chat message for carrying CSI called subscriber identification collection, wherein the MSRP channels between the calling subscribe and the RCS AS Channel indexes mark in the corresponding chat groups of chat group ID include N number of user, the CSI called subscriber identification collection includes M The M user identifier of a called subscriber, the M user identifier be N number of user N number of user identifier in remove the caller M user identifier except the user identifier of user, the N are the integer more than 2, and the M is positive integer, and the M is less than N-1；

The RCS AS split the group chat according to the CSI called subscriber identification collection and disappear after receiving the group chat message Breath is M chat messages corresponding with the M called subscriber, and sends the M items chat respectively to the M called subscriber Corresponding chat messages in message；

Wherein, the RCS AS split the group chat message according to the CSI called subscriber identification collection and are and the M called subscriber The concrete mode of corresponding M chat messages is：

The RCS AS merge the M user identifier that the CSI called subscriber identification is concentrated and the user identifier of the calling subscribe is Private chat group identification collection, according to the mapping relations between the address information to prestore and the channel indexes of MSRP channels mark, and The M address information that the CSI called subscriber identification obtained is concentrated, determines the corresponding M called subscriber of the M address information M channel indexes of the M MSRP channel between the RCS AS identify, based in the group chat message chat message, The private chat group identification collection and M channel indexes mark generate the corresponding M items chat of the M called subscriber and disappear Breath, wherein the channel indexes mark includes the user identifier of the chat group ID and called subscriber.

12. the system according to claim 11 for realizing private chat, which is characterized in that the RCS AS are called to the M The concrete mode that user sends the corresponding chat messages in the M chat messages respectively is：

13. the system according to claim 12 for realizing private chat, which is characterized in that

The RCS AS are additionally operable to be according to the CSI called subscriber identification collection fractionation group chat message and the M are called use After the corresponding M chat messages in family, the M items are sent to the M called subscriber by the M MSRP channels respectively and are chatted Before corresponding chat messages in its message, M MSRP channel between the M called subscriber and the RCS AS is obtained.

14. the system according to claim 13 for realizing private chat, which is characterized in that the RCS AS obtain the M quilt The concrete mode of M MSRP channel between user and the RCS AS is made to be：

The RCS AS extract N number of MSRP channels between N number of user and the RCS AS and N number of MSRP channels Mapping relations list between N number of channel indexes mark, is identified as inquiry foundation with the M channel indexes, is reflected described in inquiry Relation list is penetrated to obtain M MSRP channel between the M called subscriber and the RCS AS.

15. the system for realizing private chat according to claim 11-14 any one of them, which is characterized in that

The RCS AS are additionally operable to respond group's activation request, send response message to the calling subscribe, create and protect Deposit the MSRP channels between the calling subscribe and the RCS AS, and according to the chat group ID and the calling subscribe User identifier generates the channel indexes mark of the MSRP channels between the calling subscribe and the RCS AS；To the chat group N-1 user in N number of user that the corresponding chat groups of group ID include in addition to the calling subscribe sends the group respectively Group activation request；The response for receiving group's activation request described in each user response in the N-1 user and sending disappears After breath, each user in the N-1 user and the MSRP channels between the RCS AS are created, according to the chat The user identifier of group ID and each user in the N-1 user generate each user in the N-1 user The channel indexes of MSRP channels between the RCS AS identify；The calling subscribe based on establishment and the RCS AS it Between MSRP channels, establishment the N-1 user in each user and the RCS AS between MSRP channels and The channel indexes mark of MSRP channels between the calling subscribe and the RCS AS that generate, the N-1 use generated The channel indexes of the MSRP channels between each user and the RCS AS in family identify, and create N number of user and institute State the mapping relations row between N number of MSRP channels between RCS AS and N number of channel indexes mark of N number of MSRP channels Table, wherein N number of MSRP channels include the MSRP channels and the N-1 between the calling subscribe and the RCS AS The MSRP channels between each user and the RCS AS in user.

16. a kind of computer read/write memory medium, which is characterized in that the computer read/write memory medium is stored with calculating Machine software product, some instructions that the computer software product includes, with so that a computer equipment perform claim is wanted Seek the method described in 1 to 5 any one.