CN103108286A - Method and network element and terminal for user lagged access based on enhanced multimedia broadcast multicast service (EMBMS) cluster system - Google Patents
Method and network element and terminal for user lagged access based on enhanced multimedia broadcast multicast service (EMBMS) cluster system Download PDFInfo
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Abstract
The invention discloses a method for user lagged access based on an enhanced multimedia broadcast multicast service (EMBMS) cluster system. According to the method, a user device in lagged access is capable of joining in group calling as soon as possible in a housing estate, wherein radio resources of a cluster business group in the housing estate is occupied by a unicast business in advance. The method comprises that after the radio resources of the cluster business group are established or are deleted by effective noise bandwidth (ENB), radio resource configuration information is carried in the cluster business group of sent system broadcast information so that whether the radio resources are established or deleted in the cluster business group launched by a core network is indicated; the radio source configuration information in the system broadcast information is read by unified equipment (UE) in lagged access; and when indication of the cluster business group selected by a user is received by the UE, according to the radio resource configuration information of the cluster business group selected by the user, a decision whether the connecting process of radio resource control (RRC) of the cluster business group is launched is made. The network device comprises a radio resource configuration module and a sending module. The terminal comprises a reading module and a connecting module.
Description
Technical field
The present invention relates to the wireless communication technique field, be specifically related to TD-LTE (Time Division-Long Time Evolution time division duplex Long Term Evolution, hereinafter to be referred as TD-LTE) system is based on eMBMS (Enhanced Multimedia Broadcast Multicast Service, when the enhanced multimedia broadcast multicast service) framework is realized carrying wideband digital group service, method, the network equipment and terminal that during the group service cluster group calling, non-right of speech user lags and accesses.
Background technology
LTE is the mobile broadband network standard of future generation of 3GPP (Third Generation Partnership Project, 3-G (Generation Three mobile communication system) collaborative project) definition.Adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology and introduce the technology such as MIMO (the many outputs of many outputs); Simultaneously can support the 1.25-20MHz bandwidth, greatly improve peak data rate and power system capacity, support the peak rate of descending 100Mbit/s, up 50Mbit/s under the 20Mhz bandwidth; The network configuration of flattening has strengthened scheduling and Radio Resource control efficiency, has shortened the time delay that continues.
The MBMS business supports at No.3 generation mobile communication system, and framework eMBMS (enhanced multimedia broadcast multicast) business in the 4th generation mobile communication LTE system is regarded as the business that application scenarios is arranged very much by industry.Its implementation is that the intelligent subscriber with video capability receives the digital audio/video business of broadcasting or multicast form by PMCH (multicast physical channel).To eMBMS business realizing and networking mode, the 3GPP consensus standard has provided total solution.
International Radio Consultative Committee (CCIR) is with trunked communication system called after " Trunking Communication System ", China is translated into trunked mobile communication system with Trunking Communication System, often is called trunked communication system or group system.Trunked communication system is a kind of mobile communication system for group's dispatch control communication, is mainly used in specialty or group's moving communicating field.Speech Communication adopts PTT (PushToTalk) button, half-duplex operation mode.Continue in a mode that pushes to talk, called need not can answering by off-hook, and the speed that continues.Have the group call ability, in namely group calling, the right of speech user exclusively enjoys and takies up link, and in group, non-right of speech user intercepts shared down link simultaneously.
The service feature of trunked communication system to sum up, a kind of method that TD-LTE wideband digital group service based on eMBMS that has proposed is realized adopts eMBMS framework bearing cluster service, and cluster service group calling is mapped as the MBMS session.In group calling, descending shared link is reused the RAB of the down link of MBMS session.
For the TD-LTE residential quarter be in eMBMS and clean culture mixed cell situation for save radio resources, the availability of frequency spectrum is provided to greatest extent.When not having group user resident in system detects group service group place Serving cell, wireless network can be that clean culture (unicast) business is seized with its Radio Resource.At this moment, when user in group calling because of start or off-grid again resident when this residential quarter, can't know that group calling sets up.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of user's delay access method based on the eMBMS group system, making the subscriber equipment of the access that lags can add as early as possible group calling in the residential quarter that group service group Radio Resource is seized by the clean culture business.
For solving the problems of the technologies described above, the invention provides a kind of user's delay access method based on enhanced multimedia broadcast multicast service (eMBMS) group system, comprising:
After evolved Node B (eNB) has been set up the Radio Resource of group service group or has been deleted the Radio Resource of group service group, carry the wireless resource configuration of group service group in the system broadcast message that sends, whether this wireless resource configuration is used to indicate that core net initiated group service group sets up or has deleted Radio Resource;
The subscriber equipment (UE) of access of lagging reads the wireless resource configuration of the group service group in this system broadcast message;
Receive the indication of user's choice set group business group as UE, whether the wireless resource configuration decision-making of the group service group of selecting according to the user is initiated group service group Radio Resource and is controlled (RRC) connection procedure.
Further, group's sign of the wireless resource configuration of described group service group comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
Further, described eNB carries the wireless resource configuration of group service group in the system broadcast message that sends after, described method also comprises: described eNB has change by beep-page message notifying user equipment (UE) system broadcast message.
Further, whether the wireless resource configuration decision-making of UE selects according to the user group service group initiates the group service RRC of group connection procedure, comprising:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to set up, UE directly intercepts the Radio Resource control information of this group service group within multicast control channel (MCCH) the modification cycle, allocation radio resource adds group service group; Perhaps
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to delete, UE initiates the RRC connection procedure to this eNB, eNB sets up the Radio Resource of group service group, UE is after the RRC successful connection, read the Radio Resource control information of MCCH, allocation radio resource adds group service group.
Further, described UE initiates the RRC connection procedure to this eNB, comprise: reason and group service group sign are set up in described UE request of carrying in the RRC connection request that sends to eNB, and described request is set up the information that group service group Radio Resource is set up in former because expression;
ENB sets up the Radio Resource of group service group, comprise: described eNB receives the RRC connection request that UE initiates, the Radio Resource of setting up group service group after reason and group service group sign is set up in identification request, and at upper this group service group updating announcement information that sends of Physical Downlink Control Channel (PDCCH), being used for notice UE MCCH has change.
Further, deleted the Radio Resource of group service group as eNB after, described method also comprises: described eNB judgement is the group service group of other built vertical Radio Resource if there is no, does not carry the wireless resource configuration of group service group in system broadcast message.
Another technical problem that the present invention will solve is to provide and a kind ofly realizes the lag network equipment of access of user, the Radio Resource situation of the group service group that making that the subscriber equipment of the access that lags can know in time that core net initiated based on the eMBMS group system.
For solving the problems of the technologies described above, the invention provides a kind of network equipment that the user lags and accesses of realizing based on enhanced multimedia broadcast multicast service (eMBMS) group system, comprise radio-resource-configuration module and sending module, wherein:
Described radio-resource-configuration module is used for setting up the Radio Resource of group service group or the Radio Resource of deletion group service group;
Described sending module, be used for after described radio-resource-configuration module is set up or deleted the Radio Resource of group service group, carry the wireless resource configuration of group service group in the system broadcast message that sends, whether this wireless resource configuration is used to indicate that core net initiated group service group sets up or has deleted Radio Resource.
Further, described sending module also is used for by beep-page message notifying user equipment (UE) system broadcast message, change being arranged after the system broadcast message that sends is carried the wireless resource configuration of group service group.
Further, group's sign of the wireless resource configuration of described group service group comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
Further, described radio-resource-configuration module also is used for receiving at present networks equipment the RRC connection request that UE initiates, when identification request is set up reason and is represented to set up group service group Radio Resource, according to the group service group sign that carries in request, set up the Radio Resource of group service group, and at upper this group service group updating announcement information that sends of Physical Downlink Control Channel (PDCCH), being used for notice UE MCCH has change.
Further, described sending module also is used for after described radio-resource-configuration module is deleted the Radio Resource of group service group, judgement is the group service group of other built vertical Radio Resource if there is no, does not carry the wireless resource configuration of group service group in system broadcast message.
Another technical problem that the present invention will solve is to provide a kind of terminal that the user lags and accesses that realizes based on the eMBMS group system, the Radio Resource situation of access can know in time that core net initiated in the situation that lag group service group adds group calling as early as possible.
For solving the problems of the technologies described above, the invention provides a kind of terminal that the user lags and accesses that realizes based on enhanced multimedia broadcast multicast service (eMBMS) group system, comprise read module and access module, wherein:
Described read module is used for the wireless resource configuration of the group service group of reading system broadcast;
Described access module is used for after the indication that receives user's choice set group business group, and whether the wireless resource configuration decision-making of the group service group of selecting according to the user is initiated group service group Radio Resource and controlled (RRC) connection procedure.
Further, described access module is whether to initiate the group service RRC of group connection procedure for the wireless resource configuration decision-making of the group service group of selecting according to the user in the following ways:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to set up, access module is directly intercepted the Radio Resource control information of this group service group within multicast control channel (MCCH) the modification cycle, allocation radio resource adds group service group; Perhaps
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to delete, access module is initiated the RRC connection procedure to evolved Node B (eNB), after the RRC successful connection, read the Radio Resource control information of MCCH, allocation radio resource adds group service group.
Further, described access module is for initiating the RRC connection procedure to eNB in the following ways: send the RRC connection request to eNB, reason and group service group sign are set up in the request of carrying in this RRC connection request, and described request is set up the information that group service group Radio Resource is set up in former because expression.
Adopt embodiment of the present invention method, in the group system based on eMBMS, under the scene that the Radio Resource of group service group place Serving cell is seized by the clean culture business, the group user of the access that lags can be accessed as early as possible, read group service, and save interface-free resources.
Description of drawings
Fig. 1 is the embodiment of the present invention 1 flow chart;
Fig. 2 is the embodiment of the present invention 2 flow charts;
Fig. 3 is the structural representation of the embodiment of the present invention 3 network equipments and terminal.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
Embodiment 1
As shown in Figure 1, comprise the following steps:
Preferably, eNB has change by beep-page message notifying user equipment (UE) system broadcast message, so that UE reads the wireless resource configuration of the group service group in this cell system broadcast.
Particularly, eNB increases this information element of wireless resource configuration of group service group in system broadcast message, after setting up or deleting the Radio Resource of group service group, upgrades this wireless resource configuration, is used for the group of expression foundation or deletion.Particularly, group's sign of this wireless resource configuration comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
If the user does not have interested group service group, namely UE does not receive the indication of user's choice set group business group in one section Preset Time, and UE does not carry out the RRC attended operation, and above-mentioned flow process finishes.
Whether the wireless resource configuration decision-making of UE selects according to the user group service group initiates the group service RRC of group connection procedure, specifically comprises:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group for setting up state, UE directly intercepts the Radio Resource control information of this group service group within MCCH (multicast control channel) the modification cycle, allocation radio resource adds group service group.
If it is the deletion state that the wireless resource configuration of the user selects group service group is indicated the Radio Resource of this group service group, UE initiates the RRC connection procedure to this eNB, and its RRC connection request comprises request and sets up reason and group service group's sign (TMGI).Particularly, this request is set up reason and can be set up for expression the information of group service group Radio Resource.ENB receives the RRC connection request that UE initiates, the Radio Resource of setting up group service group after reason and TMGI is set up in identification request, and at upper this group service group updating announcement information that sends of PDCCH (Physical Downlink Control Channel), being used for notice MCCH has change, and concrete can be with reference to 36.331 agreements.UE reads the Radio Resource control information of MCCH after the RRC successful connection, allocation radio resource adds group service group.
Embodiment 2
The present embodiment is the application example of above-described embodiment 1, and the method for business is read in the concrete user who introduces based on the group system of the eMBMS access that lags, and as shown in Figure 2, comprises the following steps:
Step 210, set up the Radio Resource of group service group as eNB, or after having deleted the Radio Resource of group service group, need the wireless resource configuration of update system broadcasting 3GPP TS 36.331SIB13 group service group, as shown in table 1, and by beep-page message notifying user equipment system broadcast message SIB13, change is arranged;
Wireless resource configuration is placed in system broadcasts 3GPP TS 36.331SIB13 in the present embodiment.
Table 1
As shown in table 1, this information element of the wireless resource configuration of group service group comprises following two information, the radio-resource-configuration sign of group service group sign and group service group, wherein, the group that group service group identifies is the group service group that core net has been initiated, and the radio-resource-configuration sign represents the radio-resource-configuration situation of corresponding group service group.
After the Radio Resource of having deleted group service group, as the current group service group that also has other Radio Resources of having set up, need issue MBSFN Area Configuration (MBSFN area configurations message), and send out this group service group updating announcement information on PDCCH.As the current group service group that does not have other built vertical Radio Resource, owing to no longer including MBSFN area configurations message, eNB can not carry 3GPP TS 36.331SIB13 in system broadcast message.
This wireless resource configuration also can be placed in other positions of system broadcast message in other embodiments, at this moment, after the Radio Resource of having deleted group service group, even if the current group service group that does not have other built vertical Radio Resource, this radio configuration information still can be sent to UE.
Step 220, during the access user equipment that lags start, reading system broadcast and storage, according to the TMGI-r9 in the group service group wireless resource configuration of SIB13, can obtain current ongoing group service group, after the user selects the interested group service TMGI-r9 of group, access user equipment judges that the Configuration Flag sign expression Radio Resource of this group service group sets up if lag, execution in step 230, if the expression Radio Resource is deleted, execution in step 250;
Step 230 is according to existing random access procedure access;
Step 240, after at random access successfully, the Radio Resource control information of reading MCCH, allocation radio resource adds group service group, end;
Step 250, subscriber equipment triggers the service access process, namely initiate RRC and connect the request of setting up (RRC Connection Request), and the reason indicating of setting up that carries in request is set up former because the information (for example bolded section in table 2) of group service group Radio Resource is set up in expression, and carry the corresponding group service sign TMGI-r9 of group that need to receive, reference table 2.
Table 2
Step 260, after eNB receives RRC connection foundation request, set up former because mcch-setup if judge, whether the Radio Resource that checks group service group is set up, if set up, flow process finishes, if do not set up, send at MCCH that 3GPP TS 36.311 message---MBSFN Area Configuration (MBSFN area configurations message) namely sets up the Radio Resource of group service group, and send out this group service group updating announcement information on PDCCH; After the Radio Resource of setting up group service group, update system is broadcasted the wireless resource configuration of 3GPP TS 36.331SIB13 group service group, and is as shown in table 1, and by beep-page message notifying user equipment system broadcast message SIB13, change arranged;
Step 270, eNB sends the RRC connection to UE and sets up message (RRC connection setup); Random access successfully after, subscriber equipment reads the Radio Resource control information of MCCH, allocation radio resource adds group service group.
Embodiment 3
Realization comprises the network equipment and terminal based on the user of eMBMS group system the lag system of access, and as shown in Figure 3, the network equipment (for example eNB) comprising: radio-resource-configuration module and sending module, wherein:
This radio-resource-configuration module is used for setting up the Radio Resource of group service group or the Radio Resource of deletion group service group;
This sending module, be used for after described radio-resource-configuration module is set up or deleted the Radio Resource of group service group, carry the wireless resource configuration of group service group in the system broadcast message that sends, whether this wireless resource configuration is used to indicate that core net initiated group service group sets up or has deleted Radio Resource.
Preferably, this sending module also is used for notifying the UE system broadcast message that change is arranged by beep-page message after the system broadcast message that sends is carried the wireless resource configuration of group service group.
Group's sign of the wireless resource configuration of above-mentioned group service group comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
Preferably, this radio-resource-configuration module also is used for receiving at present networks equipment the RRC connection request that UE initiates, when identification request is set up reason and is represented to set up group service group Radio Resource, according to the group service group sign that carries in request, set up the Radio Resource of group service group, and send out this group service group updating announcement information on PDCCH, being used for notice UE MCCH has change.
Preferably, this sending module also is used for after described radio-resource-configuration module is deleted the Radio Resource of group service group, judgement is the group service group of other built vertical Radio Resource if there is no, does not carry the wireless resource configuration of group service group in system broadcast message.
As shown in Figure 3, terminal comprises read module and access module, wherein:
This read module is used for the wireless resource configuration of the group service group of reading system broadcast;
This access module is used for after the indication that receives user's choice set group business group, and whether the wireless resource configuration decision-making of the group service group of selecting according to the user initiates the group service RRC of group connection procedure.
Preferably, this access module is whether to initiate the group service RRC of group connection procedure for the wireless resource configuration decision-making of the group service group of selecting according to the user in the following ways:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to set up, access module is directly intercepted the Radio Resource control information of this group service group within the MCCH modification cycle, allocation radio resource adds group service group; Perhaps
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to delete, access module (is for example initiated the RRC connection procedure to eNB, send the RRC connection request to eNB, reason and group service group sign are set up in the request of carrying in this RRC connection request, described request is set up former because the information of group service group Radio Resource is set up in expression), after the RRC successful connection, read the Radio Resource control information of MCCH, allocation radio resource adds group service group.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (14)
1. user's delay access method based on enhanced multimedia broadcast multicast service (eMBMS) group system comprises:
After evolved Node B (eNB) has been set up the Radio Resource of group service group or has been deleted the Radio Resource of group service group, carry the wireless resource configuration of group service group in the system broadcast message that sends, whether this wireless resource configuration is used to indicate that core net initiated group service group sets up or has deleted Radio Resource;
The subscriber equipment (UE) of access of lagging reads the wireless resource configuration of the group service group in this system broadcast message;
Receive the indication of user's choice set group business group as UE, whether the wireless resource configuration decision-making of the group service group of selecting according to the user is initiated group service group Radio Resource and is controlled (RRC) connection procedure.
2. the method for claim 1 is characterized in that:
Group's sign of the wireless resource configuration of described group service group comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
3. the method for claim 1 is characterized in that:
Described eNB carries the wireless resource configuration of group service group in the system broadcast message that sends after, described method also comprises: described eNB has change by beep-page message notifying user equipment (UE) system broadcast message.
4. method as claimed in claim 2 is characterized in that:
Whether the wireless resource configuration decision-making of UE selects according to the user group service group initiates the group service RRC of group connection procedure, comprising:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to set up, UE directly intercepts the Radio Resource control information of this group service group within multicast control channel (MCCH) the modification cycle, allocation radio resource adds group service group; Perhaps
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to delete, UE initiates the RRC connection procedure to this eNB, eNB sets up the Radio Resource of group service group, UE is after the RRC successful connection, read the Radio Resource control information of MCCH, allocation radio resource adds group service group.
5. method as claimed in claim 4 is characterized in that:
Described UE initiates the RRC connection procedure to this eNB, comprising: reason and group service group sign are set up in described UE request of carrying in the RRC connection request that sends to eNB, and described request is set up the information that group service group Radio Resource is set up in former because expression;
ENB sets up the Radio Resource of group service group, comprise: described eNB receives the RRC connection request that UE initiates, the Radio Resource of setting up group service group after reason and group service group sign is set up in identification request, and at upper this group service group updating announcement information that sends of Physical Downlink Control Channel (PDCCH), being used for notice UE MCCH has change.
6. the method for claim 1 is characterized in that:
Deleted the Radio Resource of group service group as eNB after, described method also comprises:
Described eNB judgement is the group service group of other built vertical Radio Resource if there is no, does not carry the wireless resource configuration of group service group in system broadcast message.
7. the network equipment that the user lags and accesses of realizing based on enhanced multimedia broadcast multicast service (eMBMS) group system, comprise radio-resource-configuration module and sending module, wherein:
Described radio-resource-configuration module is used for setting up the Radio Resource of group service group or the Radio Resource of deletion group service group;
Described sending module, be used for after described radio-resource-configuration module is set up or deleted the Radio Resource of group service group, carry the wireless resource configuration of group service group in the system broadcast message that sends, whether this wireless resource configuration is used to indicate that core net initiated group service group sets up or has deleted Radio Resource.
8. the network equipment as claimed in claim 7 is characterized in that:
Described sending module also is used for by beep-page message notifying user equipment (UE) system broadcast message, change being arranged after the system broadcast message that sends is carried the wireless resource configuration of group service group.
9. the network equipment as claimed in claim 7 or 8 is characterized in that:
Group's sign of the wireless resource configuration of described group service group comprises that core net initiated group service group, and the Radio Resource of each group service group has been set up or deleted indication information.
10. the network equipment as claimed in claim 7 is characterized in that:
Described radio-resource-configuration module also is used for receiving at present networks equipment the RRC connection request that UE initiates, when identification request is set up reason and is represented to set up group service group Radio Resource, according to the group service group sign that carries in request, set up the Radio Resource of group service group, and at upper this group service group updating announcement information that sends of Physical Downlink Control Channel (PDCCH), being used for notice UE MCCH has change.
11. the network equipment as claimed in claim 7 is characterized in that:
Described sending module also is used for after described radio-resource-configuration module is deleted the Radio Resource of group service group, judgement is the group service group of other built vertical Radio Resource if there is no, does not carry the wireless resource configuration of group service group in system broadcast message.
12. the terminal that the user lags and accesses that realizes based on enhanced multimedia broadcast multicast service (eMBMS) group system comprises read module and access module, wherein:
Described read module is used for the wireless resource configuration of the group service group of reading system broadcast;
Described access module is used for after the indication that receives user's choice set group business group, and whether the wireless resource configuration decision-making of the group service group of selecting according to the user is initiated group service group Radio Resource and controlled (RRC) connection procedure.
13. terminal as claimed in claim 12 is characterized in that:
Described access module is whether to initiate the group service RRC of group connection procedure for the wireless resource configuration decision-making of the group service group of selecting according to the user in the following ways:
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to set up, access module is directly intercepted the Radio Resource control information of this group service group within multicast control channel (MCCH) the modification cycle, allocation radio resource adds group service group; Perhaps
If the wireless resource configuration of the user selects group service group indicates the Radio Resource of this group service group to delete, access module is initiated the RRC connection procedure to evolved Node B (eNB), after the RRC successful connection, read the Radio Resource control information of MCCH, allocation radio resource adds group service group.
14. terminal as claimed in claim 13 is characterized in that:
Described access module is for initiating the RRC connection procedure to eNB in the following ways: send the RRC connection request to eNB, reason and group service group sign are set up in the request of carrying in this RRC connection request, and described request is set up the information that group service group Radio Resource is set up in former because expression.
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| CN111866750A (en) * | 2019-04-30 | 2020-10-30 | 海能达通信股份有限公司 | Late access method, communication device and computer readable storage medium |
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2011
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104244351A (en) * | 2013-06-24 | 2014-12-24 | 中兴通讯股份有限公司 | Service switching method and system |
| CN104244351B (en) * | 2013-06-24 | 2019-05-21 | 中兴通讯股份有限公司 | Business switch method and system |
| WO2014166439A1 (en) * | 2013-07-09 | 2014-10-16 | 中兴通讯股份有限公司 | Trunking multicast decision method, trunking terminal, trunking server and storage medium |
| CN106341798A (en) * | 2016-09-28 | 2017-01-18 | 海能达通信股份有限公司 | Trunking group call delayed access method and device |
| CN106341798B (en) * | 2016-09-28 | 2020-02-28 | 海能达通信股份有限公司 | Method and device for delayed access of cluster group calling |
| CN111836205A (en) * | 2019-04-15 | 2020-10-27 | 海能达通信股份有限公司 | Multicast service implementation method based on cluster communication and related equipment |
| CN111866750A (en) * | 2019-04-30 | 2020-10-30 | 海能达通信股份有限公司 | Late access method, communication device and computer readable storage medium |
| CN111866750B (en) * | 2019-04-30 | 2022-03-22 | 海能达通信股份有限公司 | Late access method, communication device and computer readable storage medium |
| WO2021259129A1 (en) * | 2020-06-24 | 2021-12-30 | 华为技术有限公司 | Communication method and communication device |
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| CN103108286B (en) | 2017-12-19 |
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