CN103428644A - Method for achieving cluster terminal residing and group calling and UE - Google Patents
Method for achieving cluster terminal residing and group calling and UE Download PDFInfo
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- CN103428644A CN103428644A CN2012101539301A CN201210153930A CN103428644A CN 103428644 A CN103428644 A CN 103428644A CN 2012101539301 A CN2012101539301 A CN 2012101539301A CN 201210153930 A CN201210153930 A CN 201210153930A CN 103428644 A CN103428644 A CN 103428644A
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Abstract
The invention relates to a method for achieving cluster terminal residing and group calling and UE. The method comprises the steps that a resident cell is obtained by the UE through a cell search, a BCH is opened in the resident cell so that system information can be read, and the system information at least comprises a booking system resource block and dispatching information of the booking system resource block; according to the booking system resource block and the dispatching information of the booking system resource block, cell residing is conducted. According to the method for achieving cluster terminal residing and group calling and the UE, cell residing of the UE can be successfully achieved through the system information; when a group calling service is conducted, RRC connection does not need to be established by the UE; a group calling resource configuration message sent by an FACH is obtained according to the configuration information in the booking system resource block, a corresponding channel resource is established, a called voice service of group calling is conducted, delay of UE cluster group calling is shortened, and further, the effect of the user experience is improved.
Description
Technical field
The present invention relates to the wireless communication technique field, relate in particular to a kind of TD-SCDMA(Time Division-Synchronous Code Division Multiple Access, TD SDMA) realize method and the UE of the resident and group calling of colony terminal under standard.
Background technology
Cluster communication service is a kind of half-duplex bidirectional business, can realize the business of one-to-many, be characterized in when colony terminal is initiated the group call business, its voice messaging can send to each member in predefined cluster group simultaneously, and business to set up speed fast.Wherein, the group service function has group calling, individual calling, the right to apply for words, right of speech to discharge and right of speech is seized etc.The maximum characteristics of trunking communication are that Speech Communication adopts PTT(Push To Talk, and one pushes to talk) mode continue, calledly without off-hook, can answer, speed continues.Based on these characteristics, cluster communication system is widely used in industry and the occasions such as government bodies, public security fire-fighting, energy traffic, airport harbour, industrial and mining enterprises, military affairs and exhibition.
Development along with mobile communication technology, trunked communication system will be gradually by current GSM(global system for mobile communications, Global System of Mobile communication) technology is to based on 3G(3rd-generation, the 3G (Third Generation) Moblie technology) or 4G(the 4th third-generation mobile communication technology) etc. the system evolved of the communication technology.
At present, along with the formulation of communication standard TD-SCDMA, networking and the terminal equipment of TD standard arise at the historic moment, and have produced thus and take the TD-SCDMA consensus standard as basis, realize the TD Clustering of group service function.But, because colony terminal is comparatively strict to delay requirement, existing TD Clustering can't meet in the colony terminal group-calling process demand to time delay.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and UE that realizes the resident and group calling of colony terminal, is intended to realize that the community of colony terminal is resident and reduces the time delay in the colony terminal group-calling process.
In order to achieve the above object, the present invention proposes a kind of method that realizes the resident and group calling of colony terminal, comprising:
UE obtains persistent district by Cell searching, at described persistent district, opens the BCH read system message, and described system message at least comprises the schedule information of reservation system Resource Block and described reservation system Resource Block;
Carry out community according to the schedule information of described reservation system Resource Block and described reservation system Resource Block resident.
Preferably, the step that described UE obtains persistent district by Cell searching comprises:
The predetermined frequency of described UE basis or full frequency band frequency sweep are carried out Cell searching and are obtained persistent district.
Preferably, described reservation system Resource Block carries required configuration information corresponding to the special-purpose FACH of cluster.
Preferably, the described schedule information according to reservation system Resource Block and described reservation system Resource Block carries out also comprising after the resident step in community:
Read the configuration information in described reservation system Resource Block according to described schedule information, and be kept at this locality.
Preferably, describedly according to schedule information, read the configuration information in described reservation system Resource Block, and also comprise after being kept at local step:
Described UE carries out position renewal and group information updating;
Send caller by Random Access Channel to network side and set up request message, described caller is set up in request message and is carried call related parameters;
Receive the caller that described network side carries out returning after authentication and collision detection to described UE and set up response message, described caller is set up response message and is carried the physical resource information that network side is the UE configuration;
According to the physical resource information of described network side configuration, carry out group calling caller speech business.
Preferably, described UE carries out position renewal and group information updating
Step after also comprise:
After described UE receives beep-page message, the group sign in the group information after the renewal that this locality is preserved is contrasted with the group sign in described beep-page message, judges whether described beep-page message is the paging to this UE; If,
According to the configuration information in described reservation system Resource Block, obtained the group call resource configuration messages that the upper cycle of FACH sends, set up corresponding channel resource, carry out the group calling called voice service.
Preferably, the step that described UE carries out group information updating comprises:
Described UE sends the group information updating request message that carries IMSI information to network side;
Receive the group information updating response message of the group information that carries described UE that described network side returns.
The present invention also proposes a kind of UE that realizes the resident and group calling of colony terminal, comprising:
The system message acquisition module, for by Cell searching, obtaining persistent district, open the BCH read system message at described persistent district, and described system message at least comprises the schedule information of reservation system Resource Block and described reservation system Resource Block;
Resident module, carry out community for the schedule information according to described reservation system Resource Block and described reservation system Resource Block resident.
Preferably, described system message acquisition module also obtains persistent district for according to predetermined frequency or full frequency band frequency sweep, carrying out Cell searching.
Preferably, this UE also comprises:
Memory module, for read the configuration information of described reservation system Resource Block according to described schedule information, and be kept at this locality.
Preferably, this UE also comprises:
Update module, for carrying out position renewal and group information updating to described UE;
The group calling module, set up request message for by Random Access Channel, to network side, sending caller, and described caller is set up in request message and carried call related parameters; Receive the caller that described network side carries out returning after authentication and collision detection to described UE and set up response message, described caller is set up response message and is carried the physical resource information that network side is the UE configuration; And the physical resource information configured according to described network side, carry out group calling caller speech business.
Preferably, described group calling module, also for after receiving beep-page message as described UE, the group sign in the group information after the renewal that this locality is preserved is contrasted with the group sign in described beep-page message, judges whether described beep-page message is the paging to this UE; If, according to the configuration information in described reservation system Resource Block, obtained the group call resource configuration messages that the upper cycle of FACH sends, set up corresponding channel resource, carry out the group calling called voice service.
Preferably, described update module is specifically for sending the group information updating request message that carries IMSI information to network side; Receive the group information updating response message of the group information that carries described UE that described network side returns.
The present invention proposes a kind of method and UE that realizes the resident and group calling of colony terminal, UE passes through Cell searching, open the system message that BCH reads the schedule information that comprises reservation system Resource Block and reservation system Resource Block in persistent district, this reservation system Resource Block carries required configuration information corresponding to the special-purpose FACH of cluster, and it is resident that UE successfully carries out community by this system message; In addition, when group-calling service, UE connects foundation without carrying out RRC, and obtain according to the configuration information in the reservation system Resource Block group call resource configuration messages that FACH sends, set up corresponding channel resource, carry out the group calling called voice service, shortened thus the time delay of UE cluster multi call, and then improved user's experience effect.
The accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention realizes method one embodiment of the resident and group calling of colony terminal;
Fig. 2 is the schematic flow sheet that the present invention realizes another embodiment of method of the resident and group calling of colony terminal;
Fig. 3 is the structural representation that the present invention realizes UE mono-embodiment of the resident and group calling of colony terminal;
Fig. 4 is the structural representation that the present invention realizes another embodiment of UE of the resident and group calling of colony terminal.
In order to make technical scheme of the present invention clearer, clear, below in conjunction with accompanying drawing, be described in further detail.
Embodiment
The solution of the embodiment of the present invention is mainly: in the network side configuration, carry the special-purpose FACH(Forward Access of cluster Channel, forward access channel) the reservation system Resource Block of corresponding required configuration information, UE(user equipment, subscriber equipment, user terminal) pass through Cell searching, open BCH(Broadcast Channel in persistent district, broadcast channel) read the system message of the schedule information that comprises reservation system Resource Block and reservation system Resource Block, and it is resident successfully to carry out community by this system message; When group-calling service, UE is without carrying out RRC(Radio Resource Control, radio resource control) connect and set up, in the called process of group calling, UE sends to network side the caller that carries all parameters that calling is relevant and sets up request message, take and obtain the physical resource information of network side as the UE configuration, carry out group calling caller speech business; In group calling caller process, UE obtains according to the configuration information in the reservation system Resource Block group call resource configuration messages that FACH sends, and sets up corresponding channel resource, carries out the group calling called voice service, to shorten the time delay of UE cluster multi call, and then improve user's experience effect.
The present invention in view of colony terminal in the resident and group-calling service process of establishing in the strict ，Zai of delay requirement community, all having carried out respective handling, to adapt to the needs of cluster multi call.
As shown in Figure 1, one embodiment of the invention proposes a kind of method that realizes the resident and group calling of colony terminal, comprising:
Step S101, UE obtains persistent district by Cell searching, at persistent district, opens the BCH read system message, and system message at least comprises the schedule information of reservation system Resource Block and reservation system Resource Block;
At network side, System information block (SIB), for comprising real system message, in the prior art, comprises SIB1 to the SIB19 SIB of totally 19 types.The schedule information of SIB is by MIB or SB carrying.Wherein, system message is in the BCCH(Broadcast Control Channel, Broadcast Control Channel) upper emission, then be mapped to BCH or FACH, and always be complementary with BCH or FACH transmission block size.
In order to make UE success persistent district, and reducing time delay in follow-up group-calling service, the present embodiment network side is newly established a System information block, i.e. the alleged reservation system Resource Block of the present embodiment, with SIB30, mean, this SIB30 carries required all configuration informations corresponding to the special-purpose FACH of cluster.
MIB(master scheduling piece in system message broadcast) broadcast system message piece SIB30 in, certainly, also can in Scheduling Block SB1 or SB2, be broadcasted, specifically with the foundation that is embodied as of network side, but UE needs to process any broadcast in three kinds of system scheduling message pieces.
UE, in start process, first, according to specifying frequency to carry out Cell searching, if search community, opens the BCH read system message in the Ze Zaigai community, attempt resident.
If specifying frequency not find community, or resident failure, carry out the full frequency band frequency sweep, according to the frequency sweep result, carry out again Cell searching, then according to the signal strength signal intensity order from high to low of Cell searching, carry out read system message, and attempt resident on the community searched.
Step S102, carry out community according to the schedule information of reservation system Resource Block and reservation system Resource Block resident.
In judging resident process, SIB30 must be at the master scheduling piece, perhaps in Scheduling Block SB1 or SB2, be scheduled, otherwise, think that the UEZai Gai community is not suitable for resident, SIB30 specifically is scheduled on which Scheduling Block, by the certain regulation arrangement of network side basis, no matter be which Scheduling Block, UE should accept and treatment S IB30.In the schedule information of SIB30, require SIB30 is dispatched, it has stipulated position and the repetition period of SIB30.
Under the prerequisite be scheduled at judgement SIB30, UE opens the reception that BCH carries out system message, and the essential SIB as persistent district, comprise SIB1, SIB3, SIB5, SIB7 and SIB30.As previously mentioned, UE, using SIB30 as essential resident condition, because it has stipulated all information corresponding to the special-purpose FACH channel of cluster, does not have these information, and persistent district can not normally carry out group service.
After UE receives the essential system message that comprises SIB30, can successfully reside in the cluster community, if wherein any one SIB does not receive that in the process of read system message the ，Ze Gai community cannot be resident, UE attempts resident next community so, and it judges that resident principle is with previous community.
The present embodiment UE passes through Cell searching, open the system message that BCH reads the schedule information that comprises reservation system Resource Block and reservation system Resource Block in persistent district, this reservation system Resource Block carries required configuration information corresponding to the special-purpose FACH of cluster, it is resident that UE successfully carries out community by this system message, and the time delay that simultaneously for follow-up group-calling service, shortens the UE cluster multi call has been created basis.
As shown in Figure 2, another embodiment of the present invention proposes a kind of method that realizes the resident and group calling of colony terminal, on the basis of above-described embodiment, after above-mentioned steps S102, also comprises:
Step S103, read the configuration information in the reservation system Resource Block according to schedule information, and be kept at this locality;
At UE from BCH reads system message, UE removes to read the particular content of SIB30 according to schedule information, and be kept at this locality, comprise: the configuration information special-purpose SCCPCH(auxiliary publish control physical channel of storage cluster), the TFS of storage cluster FACH and the configuration information of corresponding TCCCH, " the repetition period " of storage TCCCH, " repetition length " and " Frame offset " cell.Repetition period means the cycle that the PTT GROUP PHYSICAL CHANNEL CONFIG message of the upper carrying of TCCCH sends.UE calculates the initial transmission frame of this message by following formula:
SFN?mod?repetition?period=Frame?offset?mod?repetition?period；
Repetition length means that in this cycle, PTT GROUP PHYSICAL CHANNEL CONFIG message repeats the number of times sent continuously.If repetition length is configuration not, in acquiescence PTT GROUP PHYSICAL CHANNEL CONFIG one-period, only send out once; If repetition length is configured to " 2 ", mean to send 2 times continuously, the rest may be inferred for other Configuration Values.Frame offset is in order to guarantee that UE knows that group service is arranged after receiving beep-page message (PCH), then can be within the fastest time to reception information on cluster FACH, and do not need a cluster FACH week after date by the time.
Step S104, UE carries out position renewal and group information updating;
Resident behind community in the UE success, the registration process that advanced line position upgrades, after position updating process finishes, UE initiatively initiates the group information updating process, and this group information updating process is in order to allow UE understand to network the information that it belongs to the cluster group, network can be according to certain setting, the information of group under the change terminal, therefore, each UE is after the successfully registration of starting shooting, all organized the renewal process of information, to obtain up-to-date group information.
Wherein, the position updating process of UE, can adopt the function in former TD standard.Here repeat no more.
For the renewal process of UE group information, UE after start is finished position and is upgraded, the renewal process of the information of initiation group at once, detailed process is:
UE sends PTT information Update Request message (group information updating request message) to network side, carry IMSI(International Mobile SubscriberIdentification Number in this message, international mobile subscriber identity) information, for judge the affiliated group information of UE for network, after network is received this message, after carrying out corresponding judgement and message establishment, send PTT information Update Accept message (group information updating response message) to UE, wherein carried the group information of UE, so that UE is known current place group, for the subsequent group call business is created basic condition, may belong to a plurality of groups such as a UE simultaneously, when carrying out group-calling service, the user can be chosen in certain group and be made a call.
Step S105, send caller by Random Access Channel to network side and set up request message, and caller is set up in request message and carried call related parameters;
Step S106, response message is set up in the caller that the reception network side carries out returning after authentication and collision detection to UE, and caller is set up response message and is carried the physical resource information that network side is the UE configuration;
Step S107, according to the physical resource information of network side configuration, carry out group calling caller speech business.
Above-mentioned steps S105 is UE group calling caller process to step S107, and the present embodiment, in order to shorten time delay as far as possible, does not carry out RRC and connects process of establishing, directly carry out a group call establishment process, complete the Signalling exchange of UE and network, obtain traffic channel resource simultaneously, carry out group calling voice caller process.
Particularly, for the terminal of normal standby, its cluster multi call caller process is:
1, UE, when needs carry out group calling, sends PTT Call Setup Request message by Random Access Channel.According to the group calling requirement of access fast, UE should access in 800ms.Therefore, in order to improve access speed, eating dishes without rice or wine to have omitted RRC link setup process, in message PTT Call Setup Request, the Service Request in ordinary call, all information in Setup message all are with, wherein for calling out relevant parameter, CN domain identity, calling identification (P-TMSI or IMSI), called number, qos requirement and call business type etc. are arranged;
2, network side is after receiving the group calling caller foundation request that UE sends, need to carry out the work such as authentication and collision detection, after confirming again to allow user's access, obtain pre-configured physical resource information according to the group-calling service type, bring UE by PTT Call Setup Response message on the FACH channel, be carried at operation layer 2 configuration indexs in SIB simultaneously, UE receive after this message according to physical layer configurations indication carry out relevant configuration and with NODE B(base station) the dedicated channel synchronizing process;
3, UE, after completing configuration and synchronizing process, returns to call setup and completes message on the uplink service dedicated channel;
4, UE opens voice channel, and the user can carry out the up transmission of voice messaging on the ascending voice channel resource be assigned to, and realizes group calling caller speech business.
From the above, compared to existing technology, when the present embodiment cluster UE initiates group calling business, its signalling interactive process step is less, so time delay is also few, thereby has met the needs of group service to time delay.
Further, while for UE, carrying out called service, after above-mentioned steps S103, also comprise:
Step S108, after UE receives beep-page message, the group sign in the group information after the renewal that this locality is preserved is contrasted with the group sign in beep-page message, judges whether beep-page message is the paging to this UE; If enter step S109; Otherwise, process ends;
Step S 109, according to the configuration information in the reservation system Resource Block, obtain the group call resource configuration messages that the upper cycle of FACH sends, and set up corresponding channel resource, carry out the group calling called voice service.
Above-mentioned steps S108 and step S109 are the called process of UE group calling, and the present embodiment, in order to shorten time delay as far as possible, receive the beep-page message of network at UE after, does not carry out RRC and connects process of establishing.The obtain manner of its physical resource is for obtaining by reading cluster FACH channel, network is periodicity broadcast physical channel configuration information on the special-purpose FACH channel of cluster, after UE reads this physical channel configuration information, physical channel configuration information is configured to physical layer, enter listen state, obtain voice messaging.For the UE of rear start, can enter listen state by monitoring the special-purpose FACH channel of cluster equally, this is called the access group calling that lags.
Particularly, for the terminal of normal standby, the called process of its cluster multi call is:
1, after cluster UE receives beep-page message, all groups of sign contrasts that the cell in beep-page message " Group identity " and UE are preserved, if having one identical, show it is the paging to this UE, UE is corresponding beep-page message;
2, UE reads the special-purpose FACH channel of cluster (configuration is obtained from SIB30), obtains the group call resource configuration messages that the cycle on this FACH channel sends, and therefrom gets business and follows the channel resource configuring condition, and set up corresponding channel resource with this;
3, UE opens voice channel, receives downlink voice information, enters listen state.In order to prevent the voice messaging Loss, above-mentioned steps 2 and step 3 parallel work-flow.
In addition, UE for the start that lags, start shooting successfully resident after, needing to understand the group-calling service whether affiliated group is arranged at present exists, therefore UE need to initiatively remove the special-purpose FACH channel of readset group, because the message on this channel is periodically to send, therefore the state information of group under necessarily can reading, if there is business to exist, initiatively voice messaging is obtained in access.
As the above analysis, the called subscriber of the present embodiment cluster UE is after receiving paging, and the Signalling exchange of itself and network, only have the process of a paging receiving, and UE, by inter-process, can enter listen state automatically, receives the group calling voice messaging.
It is resident that the present embodiment not only can make UE successfully carry out community, when group-calling service, UE connects foundation without carrying out RRC, and obtain according to the configuration information in the reservation system Resource Block group call resource configuration messages that FACH sends, set up corresponding channel resource, carry out the group calling called voice service, shortened thus the time delay of UE cluster multi call, and then improved user's experience effect.
As shown in Figure 3, one embodiment of the invention proposes a kind of UE that realizes the resident and group calling of colony terminal, comprising: system message acquisition module 301 and resident module 302, wherein:
System message acquisition module 301, for by Cell searching, obtaining persistent district, open the BCH read system message at persistent district, and system message at least comprises the schedule information of reservation system Resource Block and described reservation system Resource Block;
At network side, System information block (SIB), for comprising real system message, in the prior art, comprises SIB1 to the SIB19 SIB of totally 19 types.The schedule information of SIB is by MIB or SB carrying.Wherein, system message is launched on BCCH, then is mapped to BCH(Broadcast Channel, broadcast channel) or FACH, and always with BCH or FACH transmission block size, be complementary.
In order to make UE success persistent district, and reducing time delay in follow-up group-calling service, the present embodiment network side is newly established a System information block, i.e. the alleged reservation system Resource Block of the present embodiment, with SIB30, mean, this SIB30 carries required all configuration informations corresponding to the special-purpose FACH of cluster.
MIB(master scheduling piece in system message broadcast) broadcast system message piece SIB30 in, certainly, also can in Scheduling Block SB1 or SB2, be broadcasted, specifically with the foundation that is embodied as of network side, but UE needs to process any broadcast in three kinds of system scheduling message pieces.
UE is in start process, and system message acquisition module 301, according to specifying frequency to carry out Cell searching, if search community, is opened the BCH read system message in the Ze Zaigai community, and resident module 302 is attempted resident according to the system message read.
If specifying frequency not find community, perhaps resident failure, 301 of system message acquisition modules carry out the full frequency band frequency sweep, according to the frequency sweep result, carry out again Cell searching, then carry out read system message according to the signal strength signal intensity order from high to low of Cell searching, resident module 302 is attempted resident on the community searched.
In judging resident process, SIB30 must be at the master scheduling piece, perhaps in Scheduling Block SB1 or SB2, be scheduled, otherwise, think that the UEZai Gai community is not suitable for resident, SIB30 specifically is scheduled on which Scheduling Block, by the certain regulation arrangement of network side basis, no matter be which Scheduling Block, UE should accept and treatment S IB30.In the schedule information of SIB30, require SIB30 is dispatched, it has stipulated position and the repetition period of SIB30.
Under the prerequisite be scheduled at judgement SIB30, UE opens the reception that BCH carries out system message, and the essential SIB as persistent district, comprise SIB1, SIB3, SIB5, SIB7 and SIB30.As previously mentioned, UE, using SIB30 as essential resident condition, because it has stipulated all information corresponding to the special-purpose FACH channel of cluster, does not have these information, and persistent district can not normally carry out group service.
After UE receives the essential system message that comprises SIB30, can successfully reside in the cluster community, if wherein any one SIB does not receive that in the process of read system message the ，Ze Gai community cannot be resident, UE attempts resident next community so, and it judges that resident principle is with previous community.
The present embodiment UE passes through Cell searching, open the system message that BCH reads the schedule information that comprises reservation system Resource Block and reservation system Resource Block in persistent district, this reservation system Resource Block carries required configuration information corresponding to the special-purpose FACH of cluster, it is resident that UE successfully carries out community by this system message, and the time delay that simultaneously for follow-up group-calling service, shortens the UE cluster multi call has been created basis.
As shown in Figure 4, another embodiment of the present invention proposes a kind of UE that realizes the resident and group calling of colony terminal, on the basis of above-described embodiment, also comprises: memory module 303, update module 304 and group calling module 305, wherein:
When UE carries out called service, described group calling module 305 is also for after receiving beep-page message as described UE, group sign in group information after the renewal that this locality is preserved is contrasted with the group sign in described beep-page message, judges whether described beep-page message is the paging to this UE; If, according to the configuration information in described reservation system Resource Block, obtained the group call resource configuration messages that the upper cycle of FACH sends, set up corresponding channel resource, carry out the group calling called voice service.
Particularly, in the present embodiment, at UE from BCH reads system message, the memory module 303 of UE removes to read the particular content of SIB30 according to schedule information, and be kept at this locality, comprising: the configuration information of the special-purpose SCCPCH of storage cluster, the TFS of storage cluster FACH and the configuration information of corresponding TCCCH, " the repetition period " of storage TCCCH, " repetition length " and " Frame offset " cell.Repetition period means the cycle that the PTT GROUP PHYSICAL CHANNEL CONFIG message of the upper carrying of TCCCH sends.UE calculates the initial transmission frame of this message by following formula:
SFN?mod?repetition?period=Frame?offset?mod?repetition?period；
Repetition length means that in this cycle, PTT GROUP PHYSICAL CHANNEL CONFIG message repeats the number of times sent continuously.If repetition length is configuration not, in acquiescence PTT GROUP PHYSICAL CHANNEL CONFIG one-period, only send out once; If repetition length is configured to " 2 ", mean to send 2 times continuously, the rest may be inferred for other Configuration Values.Frame offset is in order to guarantee that UE knows that group service is arranged after receiving beep-page message (PCH), then can be within the fastest time to reception information on cluster FACH, and do not need a cluster FACH week after date by the time.
Resident behind community in the UE success, the registration process of at first by update module 304, carrying out the position renewal, after position updating process finishes, UE initiatively initiates the group information updating process, and this group information updating process is in order to allow UE understand to network the information that it belongs to the cluster group, network can be according to certain setting, the information of group under the change terminal, therefore, each UE is after the successfully registration of starting shooting, all organized the renewal process of information, to obtain up-to-date group information.
Wherein, the position updating process of UE, can adopt the function in former TD standard.Here repeat no more.
For the renewal process of UE group information, UE after start is finished position and is upgraded, the renewal process of the information of initiation group at once, detailed process is:
UE sends PTT information Update Request message (group information updating request message) to network side, carry IMSI information in this message, for judge the affiliated group information of UE for network, after network is received this message, after carrying out corresponding judgement and message establishment, send PTT information Update Accept message (group information updating response message) to UE, wherein carried the group information of UE, so that UE is known current place group, for the subsequent group call business is created basic condition, may belong to a plurality of groups such as a UE simultaneously, when carrying out group-calling service, the user can be chosen in certain group and be made a call.
Corresponding UE group calling caller process, the present embodiment, in order to shorten time delay as far as possible, does not carry out RRC and connects process of establishing, group calling module 305 is directly carried out a group call establishment process, complete the Signalling exchange of UE and network, obtain traffic channel resource simultaneously, carry out group calling voice caller process.
Particularly, for the terminal of normal standby, its cluster multi call caller process is:
1, UE, when needs carry out group calling, sends PTT Call Setup Request message by Random Access Channel.According to the group calling requirement of access fast, UE should access in 800ms.Therefore, in order to improve access speed, eating dishes without rice or wine to have omitted RRC link setup process, in message PTT Call Setup Request, the Service Request in ordinary call, all information in Setup message all are with, wherein for calling out relevant parameter, CN domain identity, calling identification (P-TMSI or IMSI), called number, qos requirement and call business type etc. are arranged;
2, network side is after receiving the group calling caller foundation request that UE sends, need to carry out the work such as authentication and collision detection, after confirming again to allow user's access, obtain pre-configured physical resource information according to the group-calling service type, bring UE by PTT Call Setup Response message on the FACH channel, be carried at operation layer 2 configuration indexs in SIB simultaneously, UE receive after this message according to physical layer configurations indication carry out relevant configuration and with the dedicated channel synchronizing process of NODE B;
3, UE, after completing configuration and synchronizing process, returns to call setup and completes message on the uplink service dedicated channel;
4, UE opens voice channel, and the user can carry out the up transmission of voice messaging on the ascending voice channel resource be assigned to, and realizes group calling caller speech business.
From the above, compared to existing technology, when the present embodiment cluster UE initiates group calling business, its signalling interactive process step is less, so time delay is also few, thereby has met the needs of group service to time delay.
The called process of corresponding UE group calling, the present embodiment, in order to shorten time delay as far as possible, after the group calling module 305 of UE is received the beep-page message of network, does not carry out RRC and connects process of establishing.The obtain manner of its physical resource is for obtaining by reading cluster FACH channel, network is periodicity broadcast physical channel configuration information on the special-purpose FACH channel of cluster, after UE reads this physical channel configuration information, physical channel configuration information is configured to physical layer, enter listen state, obtain voice messaging.For the UE of rear start, can enter listen state by monitoring the special-purpose FACH channel of cluster equally, this is called the access group calling that lags.
Particularly, for the terminal of normal standby, the called process of its cluster multi call is:
1, after cluster UE receives beep-page message, all groups of sign contrasts that the cell in beep-page message " Group identity " and UE are preserved, if having one identical, show it is the paging to this UE, UE is corresponding beep-page message;
2, UE reads the special-purpose FACH channel of cluster (configuration is obtained from SIB30), obtains the group call resource configuration messages that the cycle on this FACH channel sends, and therefrom gets business and follows the channel resource configuring condition, and set up corresponding channel resource with this;
3, UE opens voice channel, receives downlink voice information, enters listen state.In order to prevent the voice messaging Loss, above-mentioned steps 2 and step 3 parallel work-flow.
In addition, UE for the start that lags, start shooting successfully resident after, needing to understand the group-calling service whether affiliated group is arranged at present exists, therefore UE need to initiatively remove the special-purpose FACH channel of readset group, because the message on this channel is periodically to send, therefore the state information of group under necessarily can reading, if there is business to exist, initiatively voice messaging is obtained in access.
As the above analysis, the called subscriber of the present embodiment cluster UE is after receiving paging, and the Signalling exchange of itself and network, only have the process of a paging receiving, and UE, by inter-process, can enter listen state automatically, receives the group calling voice messaging.
The embodiment of the present invention realizes method and the UE of the resident and group calling of colony terminal, UE passes through Cell searching, open the system message that BCH reads the schedule information that comprises reservation system Resource Block and reservation system Resource Block in persistent district, this reservation system Resource Block carries required configuration information corresponding to the special-purpose FACH of cluster, and it is resident that UE successfully carries out community by this system message; In addition, when group-calling service, UE connects foundation without carrying out RRC, and obtain according to the configuration information in the reservation system Resource Block group call resource configuration messages that FACH sends, set up corresponding channel resource, carry out the group calling called voice service, shortened thus the time delay of UE cluster multi call, and then improved user's experience effect.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (13)
1. a method that realizes the resident and group calling of colony terminal, is characterized in that, comprising:
User terminal UE obtains persistent district by Cell searching, at described persistent district, opens broadcast channel BCH read system message, and described system message at least comprises the schedule information of reservation system Resource Block and described reservation system Resource Block;
Carry out community according to the schedule information of described reservation system Resource Block and described reservation system Resource Block resident.
2. method according to claim 1, is characterized in that, the step that described UE obtains persistent district by Cell searching comprises:
The predetermined frequency of described UE basis or full frequency band frequency sweep are carried out Cell searching and are obtained persistent district.
3. method according to claim 1, is characterized in that, described reservation system Resource Block carries required configuration information corresponding to the special-purpose forward access channel FACH of cluster.
4. method according to claim 3, is characterized in that, the described schedule information according to reservation system Resource Block and described reservation system Resource Block carries out also comprising after the resident step in community:
Read the configuration information in described reservation system Resource Block according to described schedule information, and be kept at this locality.
5. method according to claim 4, is characterized in that, describedly according to schedule information, reads the configuration information in described reservation system Resource Block, and also comprise after being kept at local step:
Described UE carries out position renewal and group information updating;
Send caller by Random Access Channel to network side and set up request message, described caller is set up in request message and is carried call related parameters;
Receive the caller that described network side carries out returning after authentication and collision detection to described UE and set up response message, described caller is set up response message and is carried the physical resource information that network side is the UE configuration;
According to the physical resource information of described network side configuration, carry out group calling caller speech business.
6. method according to claim 5, is characterized in that, the step that described UE carries out position renewal and group information updating also comprises afterwards:
After described UE receives beep-page message, the group sign in the group information after the renewal that this locality is preserved is contrasted with the group sign in described beep-page message, judges whether described beep-page message is the paging to this UE; If,
According to the configuration information in described reservation system Resource Block, obtained the group call resource configuration messages that the upper cycle of FACH sends, set up corresponding channel resource, carry out the group calling called voice service.
7. according to the described method of claim 5 or 6, it is characterized in that, the step that described UE carries out group information updating comprises:
Described UE sends the group information updating request message that carries international mobile subscriber identity IMSI information to network side;
Receive the group information updating response message of the group information that carries described UE that described network side returns.
8. a UE who realizes the resident and group calling of colony terminal, is characterized in that, comprising:
The system message acquisition module, for by Cell searching, obtaining persistent district, open the BCH read system message at described persistent district, and described system message at least comprises the schedule information of reservation system Resource Block and described reservation system Resource Block;
Resident module, carry out community for the schedule information according to described reservation system Resource Block and described reservation system Resource Block resident.
9. UE according to claim 8, is characterized in that, described system message acquisition module also obtains persistent district for according to predetermined frequency or full frequency band frequency sweep, carrying out Cell searching.
10. UE according to claim 8, is characterized in that, also comprises:
Memory module, for read the configuration information of described reservation system Resource Block according to described schedule information, and be kept at this locality.
11. UE according to claim 10, is characterized in that, also comprises:
Update module, for carrying out position renewal and group information updating to described UE;
The group calling module, set up request message for by Random Access Channel, to network side, sending caller, and described caller is set up in request message and carried call related parameters; Receive the caller that described network side carries out returning after authentication and collision detection to described UE and set up response message, described caller is set up response message and is carried the physical resource information that network side is the UE configuration; And the physical resource information configured according to described network side, carry out group calling caller speech business.
12. UE according to claim 11, is characterized in that,
Described group calling module, also for after receiving beep-page message as described UE, the group sign in the group information after the renewal that this locality is preserved is contrasted with the group sign in described beep-page message, judges whether described beep-page message is the paging to this UE; If, according to the configuration information in described reservation system Resource Block, obtained the group call resource configuration messages that the upper cycle of FACH sends, set up corresponding channel resource, carry out the group calling called voice service.
13. according to the described UE of claim 10 or 11, it is characterized in that,
Described update module is specifically for sending the group information updating request message that carries IMSI information to network side; Receive the group information updating response message of the group information that carries described UE that described network side returns.
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