CN103067875B - Group voice transmission, equipment and system - Google Patents
Group voice transmission, equipment and system Download PDFInfo
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- CN103067875B CN103067875B CN201110320548.0A CN201110320548A CN103067875B CN 103067875 B CN103067875 B CN 103067875B CN 201110320548 A CN201110320548 A CN 201110320548A CN 103067875 B CN103067875 B CN 103067875B
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Abstract
The invention provides group voice transmission, equipment and system.This group voice transmission comprises: base station receives group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net; Described base station compiles described group voice according to Predistribution Algorithm, and the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical; Group's voice after compiling are mapped to the Resource Block determined according to described running time-frequency resource configuration information by described base station; Described base station sends the group's voice after described compiling to UE, and wherein said UE is the described group member of the described base station of access.Group voice transmission of the present invention, equipment and system can avoid the interference between Cell Edge User, improve the transmission performance of group's voice in network.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of group voice transmission, equipment and system.
Background technology
Private network trunking communication is a kind of wireless debugging command system, and it, as the communication system taking designated trade as service object, has important using value in multiple field.Along with the fast development of Long Term Evolution (LongTermEvolution, LTE) technology, the private network group system based on LTE technology is widely applied.
In current voice based on LTE technology are supported, issuing of speech data is independently dispatched the speech data that self will transmit respectively by different districts to realize.For the descending group voice of private network group system, if there is the community user belonging to same group user in neighbor cell, so when this group activates, each community comprising the group user of these group's voice is dispatched group's voice respectively, to carry out issuing of group's voice.
When adopt aforesaid way realize group's voice issue time, Cell Edge User can be subject to the interference of adjacent cell signal usually, and the group's speech performance causing Cell Edge User to receive is poor.
Summary of the invention
The invention provides a kind of group voice transmission, equipment and system, be subject to the interference of adjacent cell for realizing reducing Cell Edge User in private network system thus improve the transmission performance of group's voice in network.
According to an aspect of the present invention, a kind of group voice transmission is provided, comprises:
Base station receives group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Described base station compiles described group voice according to Predistribution Algorithm, and the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Group's voice after compiling are mapped to the Resource Block determined according to described running time-frequency resource configuration information by described base station;
Described base station sends the group's voice after described compiling to user equipment (UE), and wherein said UE is the described group member of the described base station of access.
According to a further aspect in the invention, a kind of base station is also provided, comprises:
Receiver module, for receiving group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Collector, for compiling described group voice according to Predistribution Algorithm, the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Resource mapping module, for mapping to the group's voice after compiling the Resource Block determined according to described running time-frequency resource configuration information;
Descending sending module, for sending the group's voice after described compiling to UE, wherein said UE is the described group member of the described base station of access.
According to another aspect of the invention, another kind of group voice transmission is also provided, comprises:
Core net is that group's voice distribute running time-frequency resource;
Described group voice and the running time-frequency resource configuration information that distributes for described group voice are sent to each base station of the group member having access to described group voice by described core net, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling.
According to another aspect of the invention, a kind of network equipment is also provided, comprises:
Resource distribution module, for distributing running time-frequency resource for group's voice;
Sending module, for described group voice and the running time-frequency resource configuration information that distributes for described group voice being sent to each base station of the group member having access to described group voice, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling.
In accordance with a further aspect of the present invention, a kind of group voice-transmission system is also provided, comprises base station provided by the invention, the network equipment provided by the invention and the subscriber equipment with base station communication.
According to group voice transmission of the present invention, equipment and system, because the base station comprising group user adopts identical coding, the modes such as modulation carry out process of compilation to group's voice, and the running time-frequency resource utilizing core net to be group's voice distribution sends the group's voice through compiling to user's equipment downward, the each community comprising group user is made all to adopt identical running time-frequency resource and identical compile mode synchronized transmission group voice, thus make when the subscriber equipment termination of group user receives group's voice, not only mutual interference can not be there is between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of group voice transmission of the present invention.
Fig. 2 is the Organization Chart of the LTE network of the group voice transmission shown in application drawing 1.
Fig. 3 is the distribution schematic diagram of running time-frequency resource at downlink bandwidth of core net distribution.
Fig. 4 is running time-frequency resource another distribution schematic diagram at downlink bandwidth of core net distribution.
Fig. 5 is the pilot frequency configuration schematic diagram of the downlink system of configuration 1 port or 2 ports.
Fig. 6 is the pilot frequency configuration schematic diagram of the downlink system of configuration 4 port.
The handling process of subscriber equipment when Fig. 7 is application group voice transmission of the present invention.
Fig. 8 is the structural representation of base station of the present invention.
Fig. 9 is the schematic flow sheet of another group voice transmission of the present invention.
Figure 10 is the structural representation of the network equipment of the present invention.
Embodiment
Fig. 1 is the schematic flow sheet of group voice transmission of the present invention.As shown in Figure 1, this group voice transmission comprises the following steps:
Step S101, base station receives group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Step S102, described base station compiles described group voice according to Predistribution Algorithm, and the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Step S103, the group's voice after compiling are mapped to the Resource Block determined according to described running time-frequency resource configuration information by described base station;
Step S104, described base station sends the group's voice after described compiling to user equipment (UE), and wherein said UE is the described group member of the described base station of access.
So that the group voice transmission of above-described embodiment is applied to LTE network, above-mentioned steps S101-S104 is described below.
Fig. 2 is the Organization Chart of the LTE network of the group voice transmission shown in application drawing 1.As shown in Figure 2, the data source of group's voice is connected to core net by SGI interface, base station (the E-NodeB of LTE is connected by the gateway of core net, ENB), the one or more community of base station coverage, and connected by wave point and the subscriber equipment (UserEquipment, UE) being positioned at institute coverage cell.
Concrete operation step is as follows:
Step S1, when group's voice place group activates, the voice signal to group member to be sent is sent to core net by the data source of group's voice;
Step S2, core net is received voice signal distribution running time-frequency resource; The resource allocation information that core net is dealt into each base station comprises: resource original position is joined by institute, join the diversity mode of resource size and employing.Wherein, the running time-frequency resource of distribution is made up of at least two Resource Block (Resource Block to).Wherein, because base station needed to encode to voice signal before issuing group's voice, carry out to adopt ARM encoder being encoded to example, the size of the voice signal after coding is more fixing, carry out the operations such as chnnel coding again from AMR encoder voice signal out after, usually in a Transmission Time Interval (TTI), the downlink resource block taking 2 more than is needed, preferably, at least two Resource Block distributed can be positioned at downlink bandwidth two ends or have a certain frequency distance be distributed on downlink bandwidth, thus can when utilizing the descending transmission voice signal of at least two Resource Block that distribute, obtain the diversity in frequency to greatest extent.Core net distributes running time-frequency resource according to the size of voice signal, and particularly, Fig. 3 is the distribution schematic diagram of running time-frequency resource at downlink bandwidth of core net distribution.As shown in Figure 3, if core net judges that base station down only needs use Resource Block pair when sending encoded voice signal, then optional fetch bit is in a Resource Block pair of downlink bandwidth optional position, running time-frequency resource 3 such as shown in Fig. 3, or preferentially, choose the Resource Block pair at downlink bandwidth two ends, such as, when being required to be group's voice and distributing a Resource Block pair, the running time-frequency resource 3 shown in distribution diagram 3; When being required to be group's voice and distributing two Resource Block pair, the running time-frequency resource 0 shown in distribution diagram 3.In addition, Fig. 4 is running time-frequency resource another distribution schematic diagram at downlink bandwidth of core net distribution.As shown in Figure 4, core net be at least two Resource Block distributing of group voice also in the preset range being distributed in downlink bandwidth, be such as about 1/2 downlink bandwidth.Particularly, as shown in Figure 4, when downlink bandwidth is when the quantity N of the open ended Physical Resource Block of same time domain is even number, a Physical Resource Block of resource block pair is positioned at downlink bandwidth edge, and another Physical Resource Block is N/2 Physical Resource Block; When N is odd number, a Physical Resource Block of resource block pair is positioned at downlink bandwidth edge, and another Physical Resource Block is (N+1)/2 Physical Resource Block., such as, if it is right soon only need to distribute 1 resource, the running time-frequency resource 3 ' in Fig. 4 can be adopted; If core net judges that base station down needs the Resource Block pair of more than 2 or 2 when sending encoded voice signal, can adopt as the running time-frequency resource 0 ' in Fig. 4, if the Resource Block corresponding to this running time-frequency resource 0 ' takies all, also can choose running time-frequency resource 1 ' or other running time-frequency resources, to obtain the diversity in frequency to greatest extent, thus improve the downlink system performance with group's voice of broadcast characteristic;
Step S3, core net sends voice signal to base station, and is sent as the running time-frequency resource ID of voice signal distribution; Wherein, there is the group user that need receive this voice signal in the community that this base station covers;
Step S4, the process of compilation before descending transmission is carried out to the voice signal received in base station; Particularly, this process of compilation comprises coding, modulation and scrambling etc.Because this voice signal is group's voice, so multiple communities with group user need the voice signal of descending transmission all identical, now by being set to base station each in network in advance adopt identical chnnel coding, identical encoding rate, identical modulation and identical scrambling mode, make the voice signal through process of compilation of descending of different districts identical; More specifically, such as, in 36.211 of LTE protocol to the mode that the data on Resource Block carry out scrambling be
wherein scrambling c
(q)i () bit is usually relevant with the ID of the Radio Network Temporary Identifier (RadioNetworkTemporaryIdentifier, RNTI) of subscriber equipment and community, because group's voice are broadcast singal, therefore can by c
(q)i () scrambled signals is set to identify RNTI (G-RNTI) to group wireless access network relevant, and community ID has nothing to do, such as c
(q)i the Initialize installation of () may be thought of as
g-RNTI is the RNTI of group's voice place group.
Step S5, the voice signal after compiling is mapped to the Resource Block determined of running time-frequency resource configuration information according to receiving from core net by base station, resource distribution, and to send to subscriber equipment.
According to the group voice transmission of above-described embodiment, because the base station comprising group user adopts identical coding, the modes such as modulation carry out process of compilation to group's voice, and the running time-frequency resource utilizing core net to be group's voice distribution sends the group's voice through compiling to user's equipment downward, the each community comprising group user is made all to adopt identical running time-frequency resource and identical compile mode synchronized transmission group voice, thus make when the subscriber equipment termination of group user receives group's voice, not only mutual interference can not be there is between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
Further, in the group voice transmission of above-described embodiment, the step that the group's voice after compiling map to the Resource Block corresponding with described running time-frequency resource configuration information comprises by described base station:
Described base station is determined corresponding for sending the Resource Block of described group voice according to the running time-frequency resource configuration information received from core net;
The Traffic Channel of group's voice after compiling and the pilot tone of community, described UE place are mapped to determined Resource Block by described base station, and with described pilot tone, will there is identical time domain in described Resource Block and not map the resource element (ResourceElement, RE) of described Traffic Channel vacant.
Particularly, Fig. 5 is the pilot frequency configuration schematic diagram of the downlink system of configuration 1 port or 2 ports, and Fig. 6 is the pilot frequency configuration schematic diagram of the downlink system of configuration 4 port.As shown in Figure 5 and Figure 6, when carrying out group's voice and mapping, voice signal is not mapped to the RE of time domain identical with public guide frequency.
Although the cell ID of different districts (CellID) is different, when adopting public guide frequency, the down public guide frequency of different districts is also different, and namely the position on frequency domain of the pilot tone of neighbor cell offsets from each other.But because the position of down public guide frequency in time domain of different districts is overlapping, so when there is the data field of neighbor cell in the public guide frequency position of this community, channel estimating based on this district pilots also can be subject to the data interference of neighbor cell, reduces the quality of channel estimating.Therefore, according to the group voice transmission of above-described embodiment, because each community is corresponding with public guide frequency and not as Traffic Channel RE is vacant, data are not transmitted in neighbor cell in Ji Ge community while transmission public guide frequency, make the time-frequency location of the voice signal of different districts not by the impact of CellID, reach the object that the whole network configures identical running time-frequency resource, thus improve the channel estimation accuracy of subscriber equipment based on pilot tone, improve the demodulation performance of subscriber equipment.
Further, in the group voice transmission of above-described embodiment, also comprise:
Group's voice send mode indication information is broadcasted in described base station in community, to make in community described UE according to described indication information, after group's voice after receiving compiling, know if judge the preassigned meeting and neighbor cell is measured, then detect the group member whether described neighbor cell exists described group voice; If so, then described UE merges the pilot tone of community, place and the pilot tone of neighbor cell, and the group's voice after the described compiling received described UE according to the pilot tone after merging carry out demodulation.
Wherein, whether base station such as adopts the group voice transmission in above-described embodiment to support issuing of group's voice by 1 bit (bit) notifying user equipment in the system broadcast message of community.The handling process of subscriber equipment when Fig. 7 is application group voice transmission of the present invention.Particularly, when by cell system broadcast, subscriber equipment knows that base station adopts the group voice transmission of above-described embodiment to support issuing of group's voice, when namely these group's voice synchronously issue in the whole communities comprising group user, following steps are performed:
Step S11, the measurement that subscriber equipment configures according to broadcast channel or radio resource controller (RadioResourceControl, RRC) is measured neighbor cell opportunity; Particularly, such as, PSCH channel and SSCH channel by detecting neighbor cell determine the CellID of neighbor cell, and determine the pilot frequency intensity etc. of public guide frequency port according to CellID;
Step S12, whether the receptivity that subscriber equipment detects group's voice reaches requirement; If so, then perform step S13, if not, then perform step S14; Particularly, subscriber equipment carries out demodulation according to current demodulation strategy to the group's voice received, under initial condition, demodulation strategy such as only carries out demodulation according to the pilot tone of this community for subscriber equipment, and whether reaches requirement according to the receptivity of the detection group voice such as the performance of group's voice after demodulation and/or the pilot frequency intensity of this community;
Step S13, continues to carry out demodulation by current demodulation strategy, and performs step S21;
Step S14, generates the queue of neighboring cell pilot intensity; Particularly, subscriber equipment, according to the pilot frequency intensity of each neighbor cell, sorts to neighbor cell according to pilot frequency intensity order from high to low, forms the queue of neighboring cell pilot intensity;
Step S15, whether subscriber equipment detects the queue of neighboring cell pilot intensity is empty, if so, then performs step S21, if not, then performs step S16;
Step S16, whether the pilot frequency intensity that subscriber equipment detects the strongest neighbor cell of pilot tone reaches preassigned; Particularly, subscriber equipment extracts the first neighbor cell in the queue of neighboring cell pilot intensity, and whether the pilot frequency intensity detecting this neighbor cell meets following preset standard, that is: be greater than the pilot frequency intensity of this community and be greater than predetermined threshold value; If so, then perform step S17, if not, then perform step S21;
Step S17, subscriber equipment detects paging cycle and the paging position of the neighbor cell of extracting, and deletes this neighbor cell in the queue of neighboring cell pilot intensity; Particularly, paging cycle and the paging position of neighbor cell such as determined by subscriber equipment according to the broadcast message of community;
Step S18, subscriber equipment judges whether there is the activation group identical with group's voice place group in the neighbor cell of extracting, and if so, then performs step S19, if not, then repeated execution of steps S15; Particularly, when there is group user in community and issue group's voice, usually group ID is broadcasted in community, subscriber equipment can monitor the group ID of the activation group of neighbor cell broadcast, and by it compared with the group ID of received group voice, if both are consistent, then know the activation group that in neighbor cell, existence is identical with group's voice place group, otherwise then do not exist;
Step S19, subscriber equipment upgrades demodulation strategy and carries out demodulation according to the demodulation strategy after upgrading; Particularly, subscriber equipment utilizes the pilot tone of neighbor cell to carry out channel estimating, the pilot tone of this community is utilized to carry out channel estimating, and two channel estimation results are carried out diversity and merge demodulation is carried out to received group's voice, preferably adopt maximum-ratio combing method to merge two channel estimation results;
Step S20, whether the receptivity again detecting group's voice reaches requirement; Particularly, subscriber equipment detects the group's voice after utilizing the demodulation strategy demodulation after upgrading and whether reaches requirement, and concrete detection method can be identical with step S12; If so, then step S21 is performed, if not, then repeated execution of steps S15;
Step S21, whether the measuring period detecting neighbor cell arrives; Particularly, subscriber equipment is measured neighbor cell according to predetermined period, and whenever reaching this cycle, subscriber equipment startup is to the detection of neighbor cell and measurement; If so, then repeated execution of steps S11, if not, then waits for and repeated execution of steps S21, until when again arriving the neighbor cell measurement cycle, and repeated execution of steps S11.
Fig. 8 is the structural representation of base station of the present invention.As shown in Figure 8, this base station comprises:
Receiver module 11, for receiving group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Collector 12, for compiling described group voice according to Predistribution Algorithm, the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Resource mapping module 13, for mapping to the group's voice after compiling the Resource Block determined according to described running time-frequency resource configuration information;
Descending sending module 14, for sending the group's voice after described compiling to UE, wherein said UE is the described group member of the described base station of access.
The flow process of the base-station transmission group voice transfer of above-described embodiment is identical with the group voice transmission of above-described embodiment, so place repeats no more.
According to the base station of above-described embodiment, adopt identical coding, the modes such as modulation carry out process of compilation to group's voice, and the running time-frequency resource utilizing core net to be group's voice distribution sends the group's voice through compiling to user's equipment downward, the each community comprising group user is made all to adopt identical running time-frequency resource and identical compile mode synchronized transmission group voice, thus make when the subscriber equipment termination of group user receives group's voice, not only mutual interference can not be there is between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
Further, in the base station of above-described embodiment, described collector comprises:
Resource chooses unit, corresponding for sending the Resource Block of described group voice for determining according to described running time-frequency resource configuration information;
Map unit, for the Traffic Channel of group's voice after compiling and the pilot tone of community, described UE place are mapped to determined Resource Block, and with described pilot tone, will there is identical time domain in described Resource Block and not map the resource element of described Traffic Channel vacant.
According to the base station of above-described embodiment, because each community is corresponding with public guide frequency and not as Traffic Channel RE is vacant, data are not transmitted in neighbor cell in Ji Ge community while transmission public guide frequency, make the time-frequency location of the voice signal of different districts not by the impact of CellID, reach the object that the whole network configures identical running time-frequency resource, thus improve the channel estimation accuracy of subscriber equipment based on pilot tone, improve the demodulation performance of subscriber equipment.
Further, in the base station of above-described embodiment, described descending sending module also for broadcasting group's voice send mode indication information in community, to make in community described UE according to described indication information, after group's voice after receiving compiling, know if judge the preassigned meeting and neighbor cell is measured, then detect the group member whether described neighbor cell exists described group voice; If so, then described UE merges the pilot tone of community, place and the pilot tone of neighbor cell, and the group's voice after the described compiling received described UE according to the pilot tone after merging carry out demodulation.
Fig. 9 is the schematic flow sheet of another group voice transmission of the present invention.As shown in Figure 9, this group voice transmission comprises the following steps:
Step S201, core net is that group's voice distribute running time-frequency resource, and wherein this core net is such as the gateway device of network side;
Step S202, described group voice and the running time-frequency resource configuration information that distributes for described group voice are sent to each base station of the group member having access to described group voice by described core net, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling.
The group voice transmission of above-described embodiment also can realize based on the LTE network shown in Fig. 2, and the group voice transmission of specific implementation step and previous embodiment is similar, so place repeats no more.
According to the group voice transmission of above-described embodiment, because core net is that group's voice distribute the running time-frequency resource of specifying, and distributed running time-frequency resource is informed each base station, identical coding is being adopted to make each base station, after the modes such as modulation carry out process of compilation to group's voice, identical running time-frequency resource can be utilized to send the group's voice through compiling to user's equipment downward, the each community comprising group user is made all to adopt identical running time-frequency resource and identical compile mode synchronized transmission group voice, thus make when the subscriber equipment termination of group user receives group's voice, not only mutual interference can not be there is between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
Further, in the group voice transmission of above-described embodiment, described core net is that the step of group's voice distribution running time-frequency resource comprises:
Described core net is that described group voice distribute at least two Physical Resource Block, described at least two Physical Resource Block are in downlink bandwidth continuous distribution or discontinuously arranged, wherein said discontinuously arranged comprise described at least two Physical Resource Block be distributed in described downlink bandwidth two ends, or described at least two Physical Resource Block are distributed in the preset range of described downlink bandwidth.
According to the group voice transmission of above-described embodiment, the subscriber equipment of reception group voice can be made to obtain certain frequency diversity, thus improve the downlink system performance with group's voice of broadcast characteristic.
Figure 10 is the structural representation of the network equipment of the present invention.As shown in Figure 10, this network equipment comprises:
Resource distribution module 21, for distributing running time-frequency resource for group's voice;
Sending module 22, for described group voice and the running time-frequency resource configuration information that distributes for described group voice being sent to each base station of the group member having access to described group voice, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling.
The network equipment of above-described embodiment is such as equipment of the core network, and its flow process performing group's voice transfer is identical with the group voice transmission of previous embodiment, so place repeats no more.
According to the network equipment of above-described embodiment, owing to distributing the running time-frequency resource of specifying for group's voice, and distributed running time-frequency resource is informed each base station, identical coding is being adopted to make each base station, after the modes such as modulation carry out process of compilation to group's voice, identical running time-frequency resource can be utilized to send the group's voice through compiling to user's equipment downward, the each community comprising group user is made all to adopt identical running time-frequency resource and identical compile mode synchronized transmission group voice, thus make when the subscriber equipment termination of group user receives group's voice, not only mutual interference can not be there is between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
Further, in the network equipment of above-described embodiment, described resource distribution module is used for for described group voice distribute at least two Physical Resource Block, described at least two Physical Resource Block are in downlink bandwidth continuous distribution or discontinuously arranged, wherein said discontinuously arranged comprise described at least two Physical Resource Block be distributed in described downlink bandwidth two ends, or described at least two Physical Resource Block be distributed in described downlink bandwidth preset range in discontinuous Resource Block be positioned at the Resource Block group at downlink bandwidth two ends or 2 Resource Block of employing on 2 Resource Block of the about half of whole downlink bandwidth.
According to the network equipment of above-described embodiment, the subscriber equipment of reception group voice can be made to obtain certain frequency diversity, thus improve the downlink system performance with group's voice of broadcast characteristic.
The present invention also provides a kind of group voice-transmission system, and comprise the base station of above-described embodiment, the network equipment of above-described embodiment and the subscriber equipment with base station communication, wherein this subscriber equipment can perform the operating process shown in Fig. 7.
According to group's voice-transmission system of above-described embodiment, can make not only can not there is mutual interference between the subscriber equipment of neighbor cell, but also receive diversity gain can be obtained, improve systematic function.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a group voice transmission, is characterized in that, comprising:
Base station receives group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Described base station compiles described group voice according to Predistribution Algorithm, and the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Group's voice after compiling are mapped to the Resource Block determined according to described running time-frequency resource configuration information by described base station;
Described base station sends the group's voice after described compiling to user equipment (UE), and wherein said UE is the described group member of the described base station of access;
Wherein, the step that the group's voice after compiling map to the Resource Block determined according to described running time-frequency resource configuration information comprises by described base station:
Described base station is determined corresponding for sending the Resource Block of described group voice according to described running time-frequency resource configuration information;
The Traffic Channel of group's voice after compiling and the pilot tone of community, described UE place are mapped to determined Resource Block by described base station, and will have identical time domain with described pilot tone in described Resource Block and not map the resource element of described Traffic Channel vacant.
2. group voice transmission according to claim 1, is characterized in that, also comprises:
Group's voice send mode indication information is broadcasted in described base station in community, to make in community described UE according to described indication information, after group's voice after receiving compiling, know if judge the preassigned meeting and neighbor cell is measured, then detect the group member whether described neighbor cell exists described group voice; If so, then described UE merges the pilot tone of community, place and the pilot tone of neighbor cell, and the group's voice after the described compiling received described UE according to the pilot tone after merging carry out demodulation.
3. a base station, is characterized in that, comprising:
Receiver module, for receiving group's voice and the running time-frequency resource configuration information corresponding with described group voice from core net;
Collector, for compiling described group voice according to Predistribution Algorithm, the Predistribution Algorithm wherein having access to each base station of the group member of described group voice is identical;
Resource mapping module, for mapping to the group's voice after compiling the Resource Block determined according to described running time-frequency resource configuration information;
Descending sending module, for sending the group's voice after described compiling to UE, wherein said UE is the described group member of the described base station of access;
Wherein, described collector comprises:
Resource chooses unit, corresponding for sending the Resource Block of described group voice for determining according to described running time-frequency resource configuration information;
Map unit, for the Traffic Channel of group's voice after compiling and the pilot tone of community, described UE place are mapped to determined Resource Block, and with described pilot tone, will there is identical time domain in described Resource Block and not map the resource element of described Traffic Channel vacant.
4. base station according to claim 3, it is characterized in that, described descending sending module also for broadcasting group's voice send mode indication information in community, to make in community described UE according to described indication information, after group's voice after receiving compiling, know if judge the preassigned meeting and neighbor cell is measured, then detect the group member whether described neighbor cell exists described group voice; If so, then described UE merges the pilot tone of community, place and the pilot tone of neighbor cell, and the group's voice after the described compiling received described UE according to the pilot tone after merging carry out demodulation.
5. a group voice transmission, is characterized in that, comprising:
Core net is that group's voice distribute running time-frequency resource;
Described group voice and the running time-frequency resource configuration information that distributes for described group voice are sent to each base station of the group member having access to described group voice by described core net, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling;
Wherein, each base station having access to the group member of described group voice described in is determined corresponding for sending the Resource Block of described group voice according to described running time-frequency resource configuration information;
The Traffic Channel of group's voice after compiling and the pilot tone of community, user equipment (UE) place are mapped to determined Resource Block by the described each base station having access to the group member of described group voice, and will have identical time domain with described pilot tone in described Resource Block and not map the resource element of described Traffic Channel vacant.
6. group voice transmission according to claim 5, is characterized in that, described core net is that the step of group's voice distribution running time-frequency resource comprises:
Described core net is that described group voice distribute at least two Physical Resource Block, described at least two Physical Resource Block are in downlink bandwidth continuous distribution or discontinuously arranged, wherein said discontinuously arranged comprise described at least two Physical Resource Block be distributed in described downlink bandwidth two ends, or described at least two Physical Resource Block are distributed in the preset range of described downlink bandwidth.
7. a network equipment, is characterized in that, comprising:
Resource distribution module, for distributing running time-frequency resource for group's voice;
Sending module, for described group voice and the running time-frequency resource configuration information that distributes for described group voice being sent to each base station of the group member having access to described group voice, to make each described base station compile described group voice according to identical Predistribution Algorithm, and the Resource Block corresponding with described running time-frequency resource configuration information is utilized to issue the group's voice after described compiling;
Wherein, each base station having access to the group member of described group voice described in is determined corresponding for sending the Resource Block of described group voice according to described running time-frequency resource configuration information;
The Traffic Channel of group's voice after compiling and the pilot tone of community, user equipment (UE) place are mapped to determined Resource Block by the described each base station having access to the group member of described group voice, and will have identical time domain with described pilot tone in described Resource Block and not map the resource element of described Traffic Channel vacant.
8. the network equipment according to claim 7, it is characterized in that, described resource distribution module is used for for described group voice distribute at least two Physical Resource Block, described at least two Physical Resource Block are in downlink bandwidth continuous distribution or discontinuously arranged, wherein said discontinuously arranged comprise described at least two Physical Resource Block be distributed in described downlink bandwidth two ends, or described at least two Physical Resource Block are distributed in the preset range of described downlink bandwidth.
9. group's voice-transmission system, is characterized in that, comprises the base station as described in claim 3 or 4, the network equipment as claimed in claim 7 or 8 and the subscriber equipment with described base station communication.
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| CN101106391A (en) * | 2006-07-14 | 2008-01-16 | 大唐移动通信设备有限公司 | Method, device and system for sending broadcast service in time division synchronization code division multi-address access system |
| CN101227658A (en) * | 2007-01-15 | 2008-07-23 | 鼎桥通信技术有限公司 | System and method for transmitting cluster broadcasting service data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101106391A (en) * | 2006-07-14 | 2008-01-16 | 大唐移动通信设备有限公司 | Method, device and system for sending broadcast service in time division synchronization code division multi-address access system |
| CN101227658A (en) * | 2007-01-15 | 2008-07-23 | 鼎桥通信技术有限公司 | System and method for transmitting cluster broadcasting service data |
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