CN101835105A - Digital trunking system and method for realizing group call - Google Patents
Digital trunking system and method for realizing group call Download PDFInfo
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Abstract
The invention discloses a digital trunking system and a method for realizing a group call, and relates to the technical field of trunking. The method for realizing the group call comprises that: the digital trunking system performs authentication on partial members in a group corresponding to a group call request in the process of establishing the group call according to the group call request, wherein the partial members at least comprise important members of the group, and the important members of the group refer to members corresponding to necessary member information for realizing the group call. Due to the adoption of the technical scheme of the invention, the group authentication processing speed can be effectively improved and the data area resources for a scheduling server can be saved. For high-capacity groups, the effects of the technical scheme of the invention are particularly obvious.
Description
Technical field
The present invention relates to the Clustering field, particularly relate to the method for a kind of digital cluster system and realization group call thereof.
Background technology
Trunked communication system is born in the seventies in 20th century the earliest, and trunked communication system the earliest is an analogue system, and the Digital Clustering technology was risen in the world from the mid-90 in 20th century.Digital cluster system mainly comprises: terminal, base station sub-system, dispatch server, dispatching home location register, OMC, handling desk and turnkey console.The topmost feature of Clustering is to dispatch and group calling.The scheduling feature of trunked call is meant that the terminal to some makes a call simultaneously, allows these terminals participate in simultaneously in the calling; The group calling function of group service is meant call group number on a communicating terminal, can reach the effect of many people's conversations with in calling of all terminals incoming call simultaneously in the group.
At present, in the digital cluster system, the paging mode is divided into two classes by the channel resource allocation mode: a class is referred to as the enhanced paging, i.e. IMSI (international mobile subscriber identity) paging, adopt the allocated channel mode of normal voice calls, be the Traffic Channel that each terminal distribution exclusively enjoys.For this enhanced paging, PDS need know the details of each terminal.Another kind ofly be referred to as the traditional type paging, the method of salary distribution of channel resource is a Channel Sharing, be that base station controller is the reverse traffic channel that all members set up shared forward traffic channel and share in the trunked call, and periodic broadcasting sends the assignment message of shared channel on paging channel, is controlled voluntarily by terminal and inserts or withdraw from calling.For this traditional type paging, PDS only need know that the range information that sends the traditional type paging gets final product.
In concrete application, may relate to calling sometimes to big capacity group.For example in some large enterprises in shifts, usually there is following application scenarios: divide some function groups in the enterprise, the user relevant with this function group adds this function group (so the group member sum of each function group is bigger), the user is provided with current whether waiting in this group according to the duty hour of oneself, under this scene, the member who does not wait in this group does not need to add calling; General enterprise also all has all group (group member is total can be bigger) to be used for meeting, notice important thing etc., and under this scene, the possibility major part is called all only can listen, and does not need to speak.At the calling of big capacity group, have following problem to need to solve:
Trunking communication often needs to finish in the short period of time call proceeding, and big capacity group is because group member is numerous, and the time of obtaining the group member authorization message between dispatch server and the home location register alternately certainly will prolong relatively.
Dispatch server all has the restriction of simultaneously online number of users, if simultaneously online big capacity group quantity is more, will influence continuing of other calling.
The patent that the group calling realization is discussed in the prior art is a lot.For example Chinese patent publication number CN101064872 has proposed the method for group calling authentication in a kind of group system.Comprise: dispatch server receives the group calling request; Dispatch server takes out calling terminal attribute, called group attribute wherein, is processed into the group calling authentication request message and sends to authentication server; Authentication server reads the group calling authentication request message, judges whether calling terminal and called group have legitimacy; Authentication server is processed into the group calling authentication response message and sends to dispatch server according to group calling authentication request message inquiring calling client information, called group information; Dispatch server reads the group calling authentication response message, judges whether group is in call state, in this way, this caller is added in the group call, and authentication finishes; As not, dispatch server is according to called group information, and all members initiate paging in group, and dispatch server obtains the information of each member in the group alternately with authentication server.
Chinese patent publication number CN101137115, CN1984379, CN101137121, CN101094526, CN101039467, CN1984378, CN1984379, CN101137126 have proposed the traditional group call of shared forward traffic channel and reverse traffic channel, and the implementation method of traditional group call under the situations such as group calling is not limited, roaming, the Automatic Optimal of group call pattern, pass through traditional group call, can realize group member infinite capacity system under the same sub-district, base station, can improve access speed, shorten connecting time, simultaneously save radio resources.Send traditional group call, dispatching home location register need tell dispatch server to send the scope that traditional type is called out.
Chinese patent publication number CN101137128 has proposed to be used for the calling realization system and method for taxi cluster group calling.This system comprises: group's scheduler subsystem is used for after receiving about car information of client, to the group calling dispatch request of trunking dispatching subsystem initiation to a taxi group of the client location of group scheduling service area covering; Trunking dispatching subsystem is used for taxi group is carried out group calling, communicates by first network and base station sub-system; Base station sub-system is used for transferring to by the dispatching command that first network receives from trunking dispatching subsystem colony terminal and the response of colony terminal is passed through first network-feedback to trunking dispatching subsystem; And at least one colony terminal, be configured in respectively on the taxi, be used for receiving from the colony dispatching order of trunking dispatching subsystem and responding by base station sub-system.
But there is not special solution in the prior art at big capacity group call authority-identifying speed and dispatch server capacity.Paging velocity has just been accelerated in the traditional type paging, has saved Radio Resource, does not solve the problem of authority-identifying speed and dispatch server capacity.If big capacity group adopts the group calling authentication method of Chinese patent publication number CN101064872, inevitably exist the authentication time long and take the more data field problem of resource of dispatch server.If adopt the implementation method of the taxi cluster group calling of Chinese patent publication number CN101137128, because dispatch server is not asked group member information for taxi cluster group calling, a lot of supplementary services can't realize.
Summary of the invention
Technical problem to be solved by this invention is, big capacity group call implementation method in a kind of digital cluster system is provided, and the cluster calling method that solves prior art is not considered the technical problem to authority-identifying speed and dispatch server capacity impact that big capacity group call brings.
In order to address the above problem, the invention discloses the method that a kind of digital cluster system is realized group call, comprising:
Digital cluster system is set up in the process of group call according to the group call request that is received, part member to the group of described group call request correspondence carries out authentication, wherein, described part member comprises the important member of group at least, and the important member of described group refers to: the member who realizes the necessary information about firms correspondence of group call.
Further, in the said method, described digital cluster system judges that also whether described group is big capacity group, only when described group is big capacity group, just the part member in the described group is carried out authentication.
Further, described big capacity group refers to that the group member sum meets or exceeds the group that sets threshold value.
Wherein, set up described group call after, when described digital cluster system is received the reverse traffic request, do not carry out authentication if judge to initiate the group member of this reverse traffic request, then this group member is carried out authentication, handle described reverse traffic request.
After described digital cluster system judged that the group member of initiating the reverse traffic request did not carry out authentication, when the group of further judging described reverse traffic request correspondence was big capacity group, described digital cluster system just carried out authentication to this group member.
The important member of described group comprises the group member that adopts the enhanced paging.
The invention also discloses a kind of digital cluster system, comprise dispatch server (PDS) and dispatching home location register (PHR), wherein:
Described PDS is used to receive group call, and carries out the group call authentication according to the described PHR of described group call request, and the authentication information that is used to receive the part member that described PHR returns, and sets up group call;
Described PHR, be used for the part member of the group of described group call correspondence being carried out authentication according to the request of described PDS, and returning part member's authentication information is given described PDS, wherein, described part member comprises the important member of group at least, and the important member of described group refers to: the member who realizes the necessary information about firms correspondence of group call.
Further, in the said system, described PHR, whether the group that also is used to judge described group call correspondence is big capacity group, only when described group is big capacity group, just only the part member in the described group is carried out authentication.
Further, described PDS, after setting up described group call, also be used to receive the reverse traffic request, if judged when the group member of this reverse traffic request of initiation did not carry out authentication, ask described PHR that this group member is carried out authentication, and the authentication information that receives this group member that described PHR returns, and handle described reverse traffic request;
Described PHR also is used for according to the request of described PDS the group member of initiating the reverse traffic request being carried out authentication, and the authentication information that returns this group member is given described PDS.
Wherein, described PDS, whether the group that also is used to judge described reverse traffic request correspondence is big capacity group, only when the group of described reverse traffic request correspondence is big capacity group, just asks described PHR that the group member of initiating described reverse traffic request is carried out authentication.
The important member of described group comprises the group member that adopts the enhanced paging.
The data field resource that adopts technical solution of the present invention can effectively improve group's authentication process speed and save dispatch server.Especially at big capacity group, the effect of technical solution of the present invention is especially obvious.
Description of drawings
Fig. 1 realizes the flow chart of group call for the present invention;
Fig. 2 is for realizing the schematic flow sheet of big capacity group call in the preferred version of the present invention;
Fig. 3 handles the schematic flow sheet of group's summary info authentication for dispatching home location register in the preferred version of the present invention.
Embodiment
Main design of the present invention is, in setting up the process of group call, digital cluster system can only carry out authentication to the part member in this group, wherein, at least to comprise the important member among this part member, and the important member is meant the member that those realize the necessary information about firms correspondence of group call, and when remaining group member is initiated the reverse traffic request in this group, these group member authentications of initiating the reverse traffic request is got final product again.Like this, the data field resource that can effectively improve the processing speed of group's authentication and save dispatch server, effect is especially obvious when adopting this method at big capacity group.
Below in conjunction with drawings and the specific embodiments technical solution of the present invention is described in further details.
A kind of digital cluster system, comprise terminal (MS, Mobile Station), base station sub-system (BSS, Base Station System), dispatch server (PDS, PTT Dispatch Server), dispatching home location register (PHR, PTT Home Register).Wherein, MS is identical with MS of the prior art, BBS with the function of BBS.
PDS is mainly used in the reception group call, and carries out the group call authentication according to the group call request PHR that receives, and the part member's that reception PHR returns authentication information is set up group call; And after setting up described group call, be used to receive the reverse traffic request, whether the group member of judging this reverse traffic request of initiation carried out authentication, if, directly handle the reverse traffic request, if not, then ask PHR that this group member is carried out authentication, and receive the authentication information of this group member that PHR returns, handle the reverse traffic request;
PHR, be mainly used in according to the request of PDS the part member of the group of the group call correspondence that received is carried out authentication, and the range information of returning part member's authentication information and factor group group membership's traditional type paging (being factor group group membership's LAC tabulation in the present embodiment) is given PDS; And the group member of initiating the reverse traffic request is carried out authentication according to the request of PDS, and the authentication information that returns this group member is given PDS, wherein, part member comprises the important member of group at least, the important member of group refers to: the member who realizes the necessary information about firms correspondence of group call, in the present embodiment, the important member of group comprises the group member that adopts the enhanced paging.
In preferred version, whether PHR, the group that can judge the group call correspondence that is received are big capacity group, only when this group is big capacity group, just the part member in this group is carried out authentication, otherwise all group members in this group are carried out authentication according to prior art; Like this, when PDS receives the reverse traffic request of the not group member initiation of authentication, PDS judges that further whether the group of the reverse traffic request correspondence that is received is big capacity group, only when the group of reverse traffic request correspondence is big capacity group, just ask PHR that the group member of initiating this reverse traffic request is carried out authentication.
Introduce the process that said system realizes group call below.This process may further comprise the steps as shown in Figure 1:
Step 101, MS initiates group call request by the PDS of BSS in digital cluster system;
Step 102, after PDS receives above-mentioned group call request, and it is mutual between the PHR, part member in the group of group call correspondence is carried out authentication, pass through as fruit part member authentication, then send authentication responses message to PDS, the authentication information that comprises the part member of this group in this authentication responses message, PDS sets up list item to preserve the part member's of authentication authentication information according to the authentication responses message of receiving in this locality, execution in step 103, if authentication is not passed through, PDS returns to MS by BBS and rejects response process ends;
In this step, at least to comprise the important member among the part member, and the important member refers to realize the member of the necessary information about firms correspondence of group call, which member is defined as most important member, the service logic that depends on system will guarantee that at least called member that all should incoming call can both normally insert calling and get final product.In the implementation case, digital cluster system comprises the member who supports enhanced paging and traditional type paging, suppose that PDS adopts the enhanced paging to member, the lowest version terminal of not supporting the traditional type paging, post number, other provinces group member of roaming transprovincially, then these members must return in authentication responses message, promptly adopt the member of enhanced paging to be the important member of group; Wait for the group function and call out for the member who activates and do not wait in this group does not add it for being provided with, can not return these members in the authentication responses message, promptly these members are the non-important member of group.
PHR except the authentication information that comprises the part member, also comprises the range information (LAC for the factor group group membership in the present embodiment tabulates) of the traditional type paging of factor group group membership in this group in the authentication responses message that PDS sends;
PDS can be according to prior art in this locality for this group sets up corresponding list item, wherein, comprise this group member information at least.
In preferred scheme, when PHR and PDS are mutual, whether the group that can further judge the group call correspondence is big capacity group, if PHR just carries out authentication to the part member of this group, if not big capacity group, then can be according to prior art, all members to this group carry out authentication, and wherein, PHR judges that whether this group is that big capacity group refers to: member's threshold value that a big capacity group is set in group system; The group member sum member's threshold value with the big capacity group that sets is compared,, judge that promptly this group is a big capacity group, otherwise be non-big capacity group if meet or exceed the thresholding of setting; At this moment, PHR can also carry the group identification of big capacity group in authentication responses message, is big capacity group with this group of group of notifications PDS.
Also have in some preferred versions, an authentication member thresholding first can be set, and this thresholding is mainly used in the adjusting group call and sets up the number that carries out the part member of authentication in the process, wherein, have only when the important member's number in the group during less than this threshold value, authentication member thresholding is just effective first.Be important member's the number of group during, need not to consider this thresholding, directly all important members are carried out authentication greater than authentication member thresholding first; When important member's total number during less than authentication member threshold value first, the cluster group system can be with other group members except that the important member also as the part member carrying out authentication, be no more than authentication member thresholding first as long as guarantee part member's number.Other included group members can be the group members of selecting at random among the part member, also can be the group members of the highest one or more support traditional type paging of priority.
Step 103, PDS is mutual by BSS and MS, and group call is set up;
Step 104, after group call was set up, PDS received the reverse traffic request that group member MS sends;
Step 105, whether the group member that PDS judge to initiate the reverse traffic request had carried out authentication (promptly judging in the list item whether this group member be present in the data field to be set up), if carried out authentication (promptly in list item, finding this group member), then directly handle this reverse traffic, if authentication (promptly in list item, not finding this group member) not, then send this member and add call request temporarily to PHR, wherein, carry the identification information of group identification information (for example GMDN or GID) and this group member;
Wherein, when PDS initiated the reverse traffic request, PDS can only initiate the member to PHR and add call request so that this user is carried out authentication temporarily when receiving for the first time this member's reverse traffic request for the member who did not carry out authentication.
In the preferred scheme, if digital cluster system is only set up the mode that adopts part member authentication to the group of big capacity group in step 202 operation, so in step 205, if PDS judged when the group member of initiating the reverse traffic request did not carry out authentication, can judge further that whether this group member is the group member of big capacity group, having only this group member is the group member of big capacity group, just send this member to PHR adds call request temporarily, otherwise can think that this group member is illegal member, adds call request and need not to send this member to PHR temporarily.Step 106, PHR handles the member who is received and adds call request temporarily, judge whether this group member is legal, if it is legal, then returning authentication accepts to reply to PDS, the authentication of being returned accepts to comprise in the response message the various attribute informations of this group member of group call needs, execution in step 107; Otherwise return to MS and to reject response process ends;
Step 107, PDS receives that above-mentioned authentication accepts response message, for this group member is set up list item, normal process reverse traffic request then, and return reverse traffic to MS and reply.
In the above-mentioned flow process, group call request has comprised group calling authentication request and the request of group member summary, after dispatching home location register is received this request, except to caller and called group authentication, judge also whether calling is legal, and when legal, finish and receive the processing of carrying out behind the group member summary request message in the above-mentioned steps.Certainly, in other scenes, also can send group calling authentication request and the request of group member summary respectively.
Introduce below in the preferred version, realize the overall process of big capacity group call, this process may further comprise the steps as shown in Figure 2:
Step 201, MS sends group call request by BSS to PDS;
Step 202, PDS initiates the group call authentication request to PHR;
Step 203, PHR reads the group that is received and exhales authentication request, judges whether calling terminal and called group be legal, if legal, exhales authentication request message inquiring calling client information, called group information according to group, returns authentication and accepts to reply execution in step 204; Reject response otherwise directly return authentication, PDS also returns group calling to terminal and rejects response, process ends;
Step 204, PDS judges whether group is in call state, if, paging caller MS, process ends; If group is not in call state, paging caller MS and execution in step 205;
Step 205, PDS sends the request of group member summary info to PHR;
Step 206, PHR handles the request of group member summary info;
Step 207, whether PHR returns the group member summary info to PDS and replys, be the group identification of big capacity group comprising group, and PDS receives the group member summary info and replys, and preserves group member summary info and group identification;
Step 208, PDS sends the group member information request to PHR;
Step 209, PHR returns the group member information answer to PDS;
Step 210, the called member of PDS paging;
Step 211, behind the call setup, group calling authentication does not return member MS and sends the reverse traffic request in the big capacity group;
Step 212, PDS receives the reverse traffic request, in the data field, search and find in the group calling the not list item of this member MS (judging that promptly this MS does not pass through authentication), do not return the member to PHR transmission authentication and add call request, the member's identification information that wherein carries group identification information and need authentication temporarily;
Step 213, PHR processing authentication is not returned the member and is added call request temporarily, judges this member's legitimacy, if legal, then return authentication and accepts to reply, and wherein comprises the various attribute informations for the treatment of the authentication member of group calling needs, execution in step 214; Otherwise return to MS by PDS and to reject response process ends;
Step 214, PDS receives that authentication do not return the member and add call answering temporarily, for this member sets up list item, normal process reverse traffic request is then returned reverse traffic to MS and is replied.
In the above-mentioned flow process, if PDS judges that group is not in call state, then the operation of step 204 and step 205 can be carried out simultaneously.
Above-mentioned steps 208,209,211 may carry out repeatedly.PDS after acquisition unit is divided the group member information answer, just paging on one side these be not the member, on one side continue and PHR obtains remaining group member information alternately.
Above-mentioned steps 212, the concrete processing of PDS can be as follows:
If the group call of the reverse traffic request correspondence of being received does not need group member is carried out validity checking (for example taxi group call), then PDS thinks that all the time the terminal of initiating the reverse traffic request is a legal terminal;
If the group call of the reverse traffic request correspondence of being received need carry out validity checking to group member, in the data field, there is not list item if find this terminal, then distinguish group and be big capacity group and carry out different processing with non-big capacity group.If group is a big capacity group, then PDS sends the authentication request of this group member to dispatching home location register, judges according to authenticating result whether terminal is legal; If group is a non-big capacity group, then PDS thinks that terminal is illegal member, directly withdraws from it from calling.
In preferred scheme, the member that authentication is not returned in the big capacity group call, as long as after sending a reverse traffic request, PDS is just by having confirmed its legitimacy to the PHR authentication, for it normally sets up the group member list item, when follow-up this member initiates the reverse traffic request again, do not need authentication once more to this member.
Introduce the detailed process that PHR handles group's summary info authentication below, wherein, in PHR, big capacity group member thresholding and authentication member thresholding first are set, this process may further comprise the steps as shown in Figure 3:
The group member that must return in the implementation case comprises member, the lowest version terminal of not supporting the traditional type paging, post number, other provinces group member of roaming transprovincially.
In the above-mentioned flow process, step 303 can exchange with step 304 sequencing or carry out simultaneously, promptly also can obtain group member information earlier and obtain the LAC tabulation again, obtains the LAC tabulation when perhaps obtaining group member information;
Step 303 all is all members' that support the traditional type paging LAC tabulation with step 305, but may be different at the acquisition methods that big capacity group and non-big capacity group are concrete, for example non-big capacity group is because will obtain all group members, and the LAC tabulation can be obtained from member's positional information; Big capacity group obtains member's LAC tabulation so and just can not take such mode because do not need all group members are all returned.
From the foregoing description as can be seen, technical solution of the present invention can effectively improve the data field resource of group's authentication process speed and saving dispatch server.Especially in big capacity group, technical solution of the present invention can reduce calling authorization time delay and taking PDS data field resource under the prerequisite of the various functions of the complete previous group calling of realization.
The above is a preferred embodiments of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a digital cluster system is realized the method for group call, it is characterized in that this method comprises:
Digital cluster system is set up in the process of group call according to the group call request that is received, part member to the group of described group call request correspondence carries out authentication, wherein, described part member comprises the important member of group at least, and the important member of described group refers to: the member who realizes the necessary information about firms correspondence of group call.
2. the method for claim 1 is characterized in that,
Described digital cluster system judges that also whether described group is big capacity group, only when described group is big capacity group, just the part member in the described group is carried out authentication.
3. method as claimed in claim 2 is characterized in that,
Described big capacity group refers to that the group member sum meets or exceeds the group that sets threshold value.
4. as each described method of claim 1 to 3, it is characterized in that,
After setting up described group call, when described digital cluster system is received the reverse traffic request, do not carry out authentication, then this group member was carried out authentication, handled described reverse traffic request if judge the group member of this reverse traffic request of initiation.
5. method as claimed in claim 4 is characterized in that,
After described digital cluster system judged that the group member of initiating the reverse traffic request did not carry out authentication, when the group of further judging described reverse traffic request correspondence was big capacity group, described digital cluster system just carried out authentication to this group member.
6. method as claimed in claim 5 is characterized in that,
The important member of described group comprises the group member that adopts the enhanced paging.
7. a digital cluster system is characterized in that, this system comprises dispatch server (PDS) and dispatching home location register (PHR), wherein:
Described PDS is used to receive group call, and carries out the group call authentication according to the described PHR of described group call request, and the authentication information that is used to receive the part member that described PHR returns, and sets up group call;
Described PHR, be used for the part member of the group of described group call correspondence being carried out authentication according to the request of described PDS, and returning part member's authentication information is given described PDS, wherein, described part member comprises the important member of group at least, and the important member of described group refers to: the member who realizes the necessary information about firms correspondence of group call.
8. system as claimed in claim 7 is characterized in that,
Whether described PHR, the group that also is used to judge described group call correspondence are big capacity group, only when described group is big capacity group, just only the part member in the described group are carried out authentication.
9. as claim 7 or 8 described systems, it is characterized in that,
Described PDS, after setting up described group call, also be used to receive the reverse traffic request, if judged when the group member of this reverse traffic request of initiation did not carry out authentication, ask described PHR that this group member is carried out authentication, and the authentication information that receives this group member that described PHR returns, and handle described reverse traffic request;
Described PHR also is used for according to the request of described PDS the group member of initiating the reverse traffic request being carried out authentication, and the authentication information that returns this group member is given described PDS.
10. system as claimed in claim 9 is characterized in that,
Described PDS, whether the group that also is used to judge described reverse traffic request correspondence is big capacity group, only when the group of described reverse traffic request correspondence is big capacity group, just ask described PHR that the group member of initiating described reverse traffic request is carried out authentication.
11. method as claimed in claim 9 is characterized in that,
The important member of described group comprises the group member that adopts the enhanced paging.
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| CN103533513A (en) * | 2012-07-05 | 2014-01-22 | 中兴通讯股份有限公司 | Digital trunking communication system and construction method thereof |
| CN104093217A (en) * | 2014-06-24 | 2014-10-08 | 哈尔滨海能达科技有限公司 | Group calling management method and device of digital trunk system |
| CN106060784A (en) * | 2016-06-16 | 2016-10-26 | 哈尔滨海能达科技有限公司 | Voice call method, system and device for trunking communication system and gateway device |
| CN110351717A (en) * | 2019-07-18 | 2019-10-18 | 中国联合网络通信集团有限公司 | The method and device thereof of rete mirabile group are passively added in terminal |
| CN110769421A (en) * | 2018-07-26 | 2020-02-07 | 华为技术有限公司 | Group creation method, device and system |
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| CN106060784B (en) * | 2016-06-16 | 2020-01-31 | 哈尔滨海能达科技有限公司 | Voice calling method, system and device of cluster communication system and gateway equipment |
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| CN110769421B (en) * | 2018-07-26 | 2021-08-13 | 华为技术有限公司 | Group creation method, device and system |
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| CN110351717B (en) * | 2019-07-18 | 2021-12-07 | 中国联合网络通信集团有限公司 | Method and device for terminal to passively join different network group |
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