CN102638767A - Method and device for trunking service transmission - Google Patents
Method and device for trunking service transmission Download PDFInfo
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- CN102638767A CN102638767A CN2012100671524A CN201210067152A CN102638767A CN 102638767 A CN102638767 A CN 102638767A CN 2012100671524 A CN2012100671524 A CN 2012100671524A CN 201210067152 A CN201210067152 A CN 201210067152A CN 102638767 A CN102638767 A CN 102638767A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
- H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
The invention discloses a method and a device for trunking service transmission, which are used for realizing trunking transmission in a broadcasting manner and improving performance of trunking transmission while overcoming co-channel interference. The method for trunking service transmission includes that an evolved node base (eNB) informs user equipment (UE) of pre-configured resource information of a trunking multicast control channel (T-MCCH); and the eNB sends the T-MCCH on the pre-configured resources of the T-MCCH when required, wherein the pre-configured resources of the T-MCCH are periodical.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of group service transmission method and device.
Background technology
Trunked communication system is with half-duplex mode communication, and (channel utilization is high for Push To Talk, PTT) the obtaining and discharge of key control channel, and call proceeding is fast through PoC during work; The user shares down channel in the group, and resource utilization is high.And trunked communication system can guarantee the privacy and the fail safe of conversation through voice encryption; Be high-priority users or professional priority allocation channel; Guarantee the communication under the state of emergency through fail soft function; Realize multi-level flexibly packet scheduling command function through dynamic reorganization.
Current trunked communication system develops into the broadband trunked communication system stage, relies on state-of-the-art Radio Transmission Technology, like the LTE technology, can realize the leap of trunked communication system each item function and technology.The broadband trunked communication system has the type of service variation of support, the transmission means variation, and bandwidth is big, the characteristic that transmission rate is high.The business of supporting comprises voice, data, video etc.; Transmission means comprises clean culture, group calling, multicast etc., and wherein full duplex mode work is adopted in clean culture, and group calling and multicast adopt half-duplex mode work.
The performance characteristic of broadband trunked communication system is: network reliability is high, has strong fail soft and capability to resist destruction; Support the Bulk Call ability of big hot zones, focus period; Call set-up time is short, and the single system call set-up time is less than 500ms; Internet security is high, supports End to End Encryption; Wide coverage, the networking expense is low.Wherein, call set-up time, network reliability and fail safe are most important three technical indicators.
In group calling and multicast transmission; Because identical data are sent to one group of user in the base station on identical resource; Each user has nothing in common with each other with respect to the characteristic of channel of base station, and the base station can only adopt bigger power omnidirectional signalling of bouquet transmission to satisfy all users' in the group demand.The problem of bringing thus is very big to the interference of co-frequency neighbor cell.
In addition, to group calling and multicast packet that the user of a group sends, because insensitive to channel variation, the dynamic dispatching gain is little, and can consume the resource of carrying dispatch, and is more reasonable with static relatively resource distribution mode.
In trunked communication system, a UE can be subordinated to a plurality of groups, but the same time can only be participated in transfer of data in a group.Semiduplex mode is adopted in cluster transmission, words power side UE transmission data, and when promptly carrying out uplink, called UE can only be in accepting state, promptly can only downlink data receiving and can not send upstream data.In addition, the cluster transmission also has can only have a kind of professional existence simultaneously in the group, do not have the multiplexing characteristics of multiple business, and said here business is meant concrete form of service, like voice, video etc.
From the angle of network side, can there be a plurality of groups transmission simultaneously, each group all has specific member UE to participate in the group service transmission and receives.In group of synchronization a calling party and some callees can only be arranged.
LTE system transmissions characteristic:
Broadband trunked communication system based on LTE is meant various demands and the function that on LTE technology and basic framework basis, realizes cluster.The LTE system adopts OFDM (Orthogonal Frequency Division Multiplex; OFDM) technology; Use the mode of scheduling to distribute the physics transfer resource as different user; The granularity of resource allocation can reach a Physical Resource Block (Physical Resource Block, PRB), i.e. the parton carrier resource of a sub-frame (1ms).The PRB number of 20MHz LTE system one sub-frame is 100.Multiple scheduled transmission mode is arranged in the LTE system; The most basic is dynamic dispatching; (Physical Downlink Control Channel PDCCH) is directed against the part resource that a UE dispatches a sub-frame, and each transmission all will be dispatched with a PDCCH promptly to use one.In addition, also having semi-continuous scheduling, is that a UE distributes fixing resource on a period of time intercycle property ground promptly.At last, static transmission means with the saving dispatching command is that (MBMS is a kind of technology through the broadcast mode service data transmission to multimedia broadcast-multicast service for Multimedia Broadcast/Multicast Service, MBMS) transmission.
The user that multimedia broadcast-multicast service (MBMS) is used in the wireless area provides multimedia broadcasting and multicast services.In the LTE system, the special-purpose frequency layer of MBMS and with the professional frequency layer of sharing of non-MBMS on MBMS can both be provided.Supporting that the LTE sub-district of MBMS can be the MBMS dedicated cell, also can be MBMS or clean culture mixed cell.The MBMS business can be carried out single cell transmission, also can carry out many cell transmission.Many cell transmission of MBMS need be supported multicast single-frequency network (MBSFN) transmission means.
So-called MBSFN is meant at one time and carries out synchronous transmission (that is to say that the sub-district in the same MBSFN zone is with frequently) in a plurality of sub-districts with same frequency, uses this transmission means can practice thrift frequency resource, improves the availability of frequency spectrum.It requires a plurality of sub-districts that identical content is sent simultaneously.So, the UE receiver just can be regarded as a big sub-district with a plurality of MBSFN sub-district.Therefore, UE not only can not receive the presence of intercell interference of neighbor cell transmission, and will benefit from the stack from the signal of a plurality of MBSFN sub-district.MBMS dedicated cell and MBMS or clean culture mixed cell can adopt the MBSFN transmission means.In addition, if utilize advanced UE receiver technology can also solve the time difference problem of multipath transmisstion, disturb thereby eliminate in the sub-district.This multiple sectors at same keeps pouring in the defeated diversity that brings can also solve problems such as blind area covering, strengthens the reliability that receives, and improves coverage rate.
The technical characterstic of the many cell transmission of MBMS is following:
The synchronous transmission of MBMS in the MBSFN territory;
Support the merging of many cell MBMS transmission;
The MBSFN retaining zone can semi-staticly dispose, for example: through the operation and safeguard (Operations&Maintenance, O&M).
Fig. 1 has shown the relation in MBMS service area and MBSFN zone etc.
The MBMS service area is made up of one or more service identifications, and each sign maps to one or more sub-districts.
The MBSFN zone is made up of one group of sub-district in the retaining zone, and the professional transmission of synchronous MBMS is carried out in these sub-districts, and plan according to the strategy of operator in the MBSFN zone.MBSFN reserves in the zone sub-district and also belongs to retaining zone, and this sub-district is not carried out MBSFN and sent.
Can there be multiple business to transmit simultaneously in the MBSFN zone.Carry out synchronously in order to guarantee that MBMS is transmitted between different districts, eliminate the purpose of disturbing and realizing merging reception to reach, the network architecture of the many cell transmission of MBMS is as shown in Figure 2.
By the many sub-districts of central controlled entity/multicast coordinated entity (Multi-cell/multicast Coordination Entity; MCE) the MBMS transmission of sub-district under a plurality of eNB of control; To guarantee the synchronous of control signaling, the business information indication of MBMS transmission, physical resource configuration, physical layer transmission form are entirely from MCE.User face data is from MBMS gateway (GW); ENB receives the MBMS data through adding the ip multicast group from MBMS GW, and user face data adopts (SYNC) agreement synchronously, and the joining day stabs in packet; Indicate this packet to transmit in which radio frames (a radio frames 10ms comprises 10 sub-frame).
After eNB receives the control command and MBMS packet of MCE; Aloft interface is with multicast control channel (Multicast Control Channel; MCCH) MBMS business information, physical layer resources configuration and transformat are sent to UE; And according to the concrete dispatching command of the radio frames in SYNC agreement indication and MCE, in correct position with MTCH (Multicast Traffic Channel, multicast service channel) MBMS transmission data.All traffic transmission in each MBSFN zone are dispatched by a MCCH, and each service bearer is mapped among the MTCH.
The MBMS aloft transmission of interface follows characteristic shown in Figure 3.
MCCH is constant in a modification cycle, and only the start position in the cycle of modification just changes.It is 5.12s or 10.24s that MCCH revises Cycle Length.Informing mechanism is introduced in the modification of MCCH, need the previous cycle with notifying (notification) indicate certain MCCH to change, UE could read the MCCH that has changed in the next MCCH modification cycle.This means from MCE indication MBMS business or the configuration of MBMS transfer resource change to MBMS after changing professional with configuration take-effective at least after two MCCH modification cycles, this obviously is a long time section, but that MBMS transmits is insensitive to time delay.In the MCCH modification cycle, MCCH periodicity emphasis recurrence is sent, like a plurality of MCCH transmission in modification cycle among Fig. 3.The transfer resource of MCCH and transmission cycle are dispatched by system message SIB13.
To the MBMS user data, carry out concrete time-domain resource scheduling by MSI MAC CE (MCH scheduling information MAC Control Element, Multicast Channel scheduling message medium access control control unit).The scheduling of MBMS transfer of data is carried out in dispatching cycle at MCH, and the start position of each MCH dispatching cycle sends MSI MAC CE, the transmission of scheduling MBMS data in this dispatching cycle.MSI is less than or equal to the MCCH change cycle dispatching cycle.
In a word, the scheduling process of MBMS transmission is: the transmission of SIB13 scheduling MCCH, and MCCH carries out the time-domain resource scope of the professional indication of MBMS and MBMS data transmission format and all MTCH, and MSI MAC CE carries out the final scheduling of resource specific to subframe.
The MBMS transmission means can be used as a kind of reference of cluster transmission, if adopt the multi-plot joint transmission, can reach the raising efficiency of transmission, eliminates the effect of presence of intercell interference.But the MBMS transmission means is not suitable for the problem of cluster transmission to be: propagation delay time is big; With a plurality of traffic transmission modes of MBSFN zone transmission, can not reflect group's characteristic of cluster transmission.
In sum, the transmission of prior art cluster has the delay requirement height, the characteristics that transmitted power is big, if each sub-district is organized transmission voluntarily, problem of co-channel interference is serious.Have this multi-plot joint transmission technology of MBMS transmission means to use for reference in the LTE system and be used to solve problem of co-channel interference, but that MBMS transmission has time delay is big, can not reflect the characteristics of group's characteristic, be not suitable for directly applying to the cluster transmission.
Summary of the invention
The embodiment of the invention provides a kind of group service transmission method and device, in order to realize carrying out the cluster transmission with broadcast mode, is solving with the transmission performance that improves the cluster transmission when disturbing frequently.
A kind of group service sending method that the embodiment of the invention provides comprises:
Evolved base station eNB notifies the pre-configured resource information of cluster multicast control channel T-MCCH to user equipment (UE);
When eNB sends T-MCCH at needs, on the pre-configured resource of T-MCCH, send T-MCCH;
Wherein, the pre-configured resource of said T-MCCH is periodic resource.
A kind of group service method of reseptance that the embodiment of the invention provides comprises:
User equipment (UE) receives the pre-configured resource information of the cluster multicast control channel T-MCCH of evolved base station eNB transmission;
UE receives T-MCCH on the pre-configured resource of T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
A kind of resource allocation methods that the embodiment of the invention provides comprises:
The resource of uniform dispatching physical arrangements bearing cluster multicast control channel T-MCCH obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
The uniform dispatching entity notifies the pre-configured resource information of T-MCCH to eNB.
A kind of group service dispensing device that the embodiment of the invention provides comprises:
The resource information notification unit is used for the pre-configured resource information of cluster multicast control channel T-MCCH is notified to user equipment (UE);
The T-MCCH transmitting element is used for when needs send T-MCCH, on the pre-configured resource of T-MCCH, sending T-MCCH;
Wherein, the pre-configured resource of said T-MCCH is periodic resource.
A kind of group service receiving system that the embodiment of the invention provides comprises:
The resource information receiving element is used to receive the pre-configured resource information of the cluster multicast control channel T-MCCH that evolved base station eNB sends;
Receive the T-MCCH unit, be used on the pre-configured resource of T-MCCH, receiving T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
A kind of resource allocation device that the embodiment of the invention provides comprises:
The T-MCCH resource configuration unit is used to dispose the resource of bearing cluster multicast control channel T-MCCH, obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
T-MCCH resource notification unit is used for the pre-configured resource information of T-MCCH is notified to eNB.
The embodiment of the invention, evolved base station eNB notifies the pre-configured resource information of cluster multicast control channel T-MCCH to user equipment (UE); When eNB sends T-MCCH at needs, on the pre-configured resource of T-MCCH, send T-MCCH, wherein, the resource of said T-MCCH is periodic resource.Thereby realized carrying out the cluster transmission, solved with the transmission performance that has improved the cluster transmission when disturbing frequently with broadcast mode.
Description of drawings
Fig. 1 be in the prior art MBMS service area and MBSFN zone etc. concern sketch map;
Fig. 2 is the network architecture sketch map of the many cell transmission of MBMS in the prior art;
Fig. 3 is the MBMS transmission sketch map of interface aloft in the prior art;
The mapping relations sketch map of channel in the group system that Fig. 4 provides for the embodiment of the invention;
Fig. 5 carries out the basic skills sketch map that cluster transmits for what the embodiment of the invention provided with broadcast mode;
The T-MCCH retransmission mechanism sketch map that Fig. 6 provides for the embodiment of the invention;
The schematic flow sheet of the group service sending method that Fig. 7 provides for the embodiment of the invention;
The schematic flow sheet of the group service method of reseptance that Fig. 8 provides for the embodiment of the invention;
The schematic flow sheet of the resource allocation methods that Fig. 9 provides for the embodiment of the invention;
Thereby the UE that Figure 10 provides for the embodiment of the invention understands T-MCCH at the pre-configured resource location of each T-MCCH and receives cluster transmission sketch map;
Figure 11 transmits sketch map for what the embodiment of the invention provided by PDCCH dispatching command indication T-MCCH;
Figure 12 retransmits sketch map for the T-MCCH that does not have dispatching command that the embodiment of the invention provides;
Figure 13 retransmits sketch map for what the embodiment of the invention provided with PDCCH dispatching command scheduling T-MCCH;
The structural representation of the group service dispensing device that Figure 14 provides for the embodiment of the invention;
The structural representation of the group service receiving system that Figure 15 provides for the embodiment of the invention;
The structural representation of the resource allocation device that Figure 16 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of group service transmission method and device, in order to realize carrying out the cluster transmission with broadcast mode, is solving with the transmission performance that improves the cluster transmission when disturbing frequently.
The embodiment of the invention can solve the problem that co-frequency neighbor cell disturbs so that the called subscriber of group system receives the cluster transmission fast and improves minizone channeling gain.
The embodiment of the invention can realize the cluster transmission of low time delay and high accuracy when solving problem of co-channel interference.
It is a kind of brand-new technology that the embodiment of the invention is carried out cluster transmission with broadcast mode, and LTE MBMS transmission is a kind of reference, because transmission characteristic and data content characteristic is different, and the various channels that can not use MBMS to define.For the ease of technical descriptioon, several kinds of channels below in group system, introducing:
Logic channel:
T-MCCH:Trunking Multicast Control Channel, the cluster multicast control channel.The transmission trunking control information of multicast comprises T-MTCH schedule information, business information, group information etc.Article one, T-MCCH carries the control information or the schedule information of a plurality of groups.Article one, T-MCCH can only be corresponding with a MBSFN zone.
T-MTCH:Trunking Multicast Traffic Channel, cluster multicast service channel.The transmission trunking business datum.Article one, T-MTCH only carries the data of a service bearer.
Transmission channel:
T-MCH:Trunking Multicast Channel, the cluster Multicast Channel.Broadcasting cluster control information transmission and data.
Physical channel:
PTMCH:Physical Trunking Multicast Channel, the physical cluster Multicast Channel.Bearing cluster command transmitting and data.
More than the mapping relations of several kinds of channels as shown in Figure 4.
The core concept of the embodiment of the invention is: periodically the resource of T-MCCH is carried in configuration, when needs transmission T-MCCH, on pre-configured resource, transmits.
In order to guarantee the delay requirement of group system, the resource cycle of the pre-configured resource of T-MCCH can be set to smaller value, like 20ms or 40ms etc.
Referring to Fig. 5, basic skills comprises:
By the uniform dispatching entity; MCE for example; Notice need be carried out the pre-configured resource information of the eNB cluster multicast control channel T-MCCH of multi-plot joint transmission, comprising resource cycle, pre-configured subframe position and the transformat of the pre-configured resource of T-MCCH, like modulation coding mode (MCS) etc.;
ENB is through system message, SIB13 for example, the pre-configured resource information of notice UE T-MCCH.
When needs carried out trunking signal and transfer of data, uniform dispatching entity (for example MCE) notice need be carried out signaling, data content and the schedule information of the eNB multi-plot joint transmission of multi-plot joint transmission, and the specifying information content comprises:
The content of T-MCCH;
The data content of T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the transmission channel T-MCH takies scope, MCS form and update cycle etc.;
The entry-into-force time point of schedule information, the just actual transmitting time point of T-MCCH, i.e. T2 shown in Fig. 5.
ENB is at the resource location transmission T-MCCH of the pre-configured T-MCCH of higher layer entities (for example MCE), and UE reads T-MCCH on the pre-configured resource of T-MCCH, obtain the data transmission scheduling information among the T-MCCH.
ENB gives UE through T-MCH transmission multi-plot joint transmission data, and UE in conjunction with the schedule information among the T-MCCH, receives T-MCH according to the MAC layer schedule information of eNB, realizes that the professional transmission of group-call/multicast receives.
Need to prove that T-MCCH among Fig. 5 and T-MTCH are mapped to transmission together on the T-MCH.
Wherein, the above-mentioned UE method that reads T-MCCH has two kinds:
Method one: UE reads T-MCCH in each pre-configured T-MCCH resource cycle, if decoded data is incorrect, does not promptly receive the T-MCCH transmission and then abandons this packet.But UE power consumption is big.
Method two: eNB is before actual transmissions T-MCCH; Send Physical Downlink Control Channel (Physical Downlink Control Channel; PDCCH) dispatching command, this dispatching command is with fixing T-RNTI (Trunking Radio Network Temporary Identity) scrambling; UE only just receives the T-MCCH transmission when receiving dispatching command.Because it is much littler than the unscrambling data part to understand the expense of PDCCH, obviously, the method UE is power saving more.
Optimize: introduce T-MCCH and retransmit, guarantee the reliable transmission of T-MCCH.
For reliable reception that guarantees T-MCCH and the UE that the back is inserted obtain the colony dispatching order, carry out the cluster transmission and receive, need to introduce the T-MCCH retransmission mechanism.T-MCCH retransmits and the T-MCCH initial transmission or the last time interval that retransmits, and promptly the T-MCCH re-transmission period is fixed value, and this time interval is defined as N times of pre-configured resource cycle of T-MCCH, and N is a positive integer.The T-MCCH retransmission time interval is given eNB by higher layer entities (for example MCE) configuration concurrency, and eNB notifies UE in system message (like SIB13).Before new T-MCCH transmission was arranged, T-MCCH continued to retransmit by fixing retransmission time interval.
The reception that T-MCCH retransmits is adopted identical method of reseptance with the T-MCCH initial transmission:
Method one: UE retransmits resource location at each predefine T-MCCH and reads T-MCCH, if decoded data is incorrect, does not promptly have the T-MCCH transmission then to abandon this packet.
Method two: eNB sent the PDCCH dispatching command before reality retransmits T-MCCH, this dispatching command is with fixing T-RNTI scrambling, and UE only just receives T-MCCH when receiving the PDCCH dispatching command.
(New Data Indicator NDI), is used to indicate the T-MCCH that is about to transmission, is that new T-MCCH transmission or T-MCCH retransmits can to introduce new data indication in the PDCCH dispatching command.NDI take the Downlink Control Information that PDCCH carries (Downlink Control Information, the 1bit in DCI) has two kinds of set modes:
Mode one, fixedly set: new T-MCCH transmission, NDI is changed to 0, and T-MCCH retransmits, and NDI is changed to 1;
That is to say, if be about to the T-MCCH of transmission, be new T-MCCH, and then NDI is changed to the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then NDI is changed to preset second value.
Mode two, new data upset: T-MCCH initial transmission and T-MCCH retransmit and are changed to 0; If there is new T-MCCH transmission to arrive, the NDI upset promptly is changed to 1; And the NDI in the order of the PDCCH retransfer scheduling of this transmission also is changed to 1; If new T-MCCH data arrives is arranged again, upset is 0 once more, by that analogy;
That is to say that the value of NDI is overturn between first preset numerical value and second value, wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
Referring to Fig. 6, wherein, T1 representes the T-MCCH initial transmission that eNB sends; T2 and T3 represent that eNB sends T-MCCH according to the T-MCCH retransmission time interval and retransmits; T4 representes that eNB sends new T-MCCH transmission, and the time interval between T4 and the T3 is the T-MCCH integral multiple in pre-configured resource cycle, but irrelevant with the T-MCCH re-transmission period.
To sum up, in base station side, referring to Fig. 7, a kind of group service sending method that the embodiment of the invention provides comprises:
S101, evolved base station eNB notify the pre-configured resource information of cluster multicast control channel T-MCCH to user equipment (UE);
When S102, eNB send T-MCCH at needs, on the pre-configured resource of T-MCCH, send T-MCCH; Wherein, the pre-configured resource of said T-MCCH is periodic resource.
Preferably, the pre-configured resource of said T-MCCH, pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE.
Preferably, eNB notifies the pre-configured resource information of T-MCCH to UE through system message.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Preferably, eNB notifies the pre-configured resource information of T-MCCH to after the UE, sends before the T-MCCH, and this method also comprises:
ENB will send T-MCCH through PDCCH dispatching command notice UE on the pre-configured resource of T-MCCH.
Preferably, comprising in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
Preferably, said NDI has following two kinds of value mode:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then NDI is changed to the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then NDI is changed to preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
Preferably, this method also comprises:
ENB notifies the re-transmission period of T-MCCH to UE through system message.
Preferably, after eNB initialization T-MCCH gave UE, this method also comprised:
ENB retransmits T-MCCH to UE according to the re-transmission period of T-MCCH.
Preferably, eNB notifies the pre-configured resource information of T-MCCH to after the UE, and before sending T-MCCH on the pre-configured resource of T-MCCH, this method also comprises:
Receive the following information content of uniform dispatching entity notice:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
Preferably, this method also comprises:
ENB sends multi-plot joint transmission data and gives UE according to the information content of uniform dispatching entity notice.
Correspondingly, referring to Fig. 8, in the UE side, a kind of group service method of reseptance that the embodiment of the invention provides comprises:
S201, user equipment (UE) receive the pre-configured resource information of the cluster multicast control channel T-MCCH of evolved base station eNB transmission;
S202, UE receive T-MCCH on the pre-configured resource of T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
Preferably, the pre-configured resource of said T-MCCH is that pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE, is notified to UE's by eNB again.
Preferably, UE receives the pre-configured resource information of T-MCCH through system message.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Preferably, UE receives after the pre-configured resource information of T-MCCH, receives before the T-MCCH, and this method also comprises:
UE confirms that through the PDCCH dispatching command eNB will send T-MCCH on the pre-configured resource of T-MCCH.
Preferably, comprising in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
Preferably, said NDI has following two kinds of value mode:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then NDI is changed to the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then NDI is changed to preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
Preferably, this method also comprises:
UE receives the re-transmission period of T-MCCH through system message.
Preferably, after UE initially received T-MCCH, this method also comprised:
UE receives the T-MCCH that eNB retransmits according to the re-transmission period of T-MCCH.
Preferably, this method also comprises:
UE in conjunction with the schedule information among the T-MCCH, receives cluster Multicast Channel T-MCH according to the media access control MAC layer schedule information of eNB.
Correspondingly, in uniform dispatching entity side, referring to Fig. 9, a kind of resource allocation methods that the embodiment of the invention provides comprises:
The resource of S301, uniform dispatching physical arrangements bearing cluster multicast control channel T-MCCH obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
S302, uniform dispatching entity notify the pre-configured resource information of T-MCCH to eNB.
Preferably, the uniform dispatching entity notifies the pre-configured resource information of T-MCCH to after the eNB, and this method also comprises:
The uniform dispatching entity notifies the following information content to give eNB:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
Preferably, said uniform dispatching entity is many sub-districts/multicast coordinated entity MCE.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Provide the explanation of several specific embodiments below.
Embodiment one: referring to Figure 10, UE understands T-MCCH at the pre-configured resource location of each T-MCCH, thereby receives cluster transmission data.
In the eNB side, comprising:
Step S401:eNB transmitting system message SIB1 is comprising the schedule information of SIB13;
Step S402:eNB transmitting system message SIB2 comprising MBSFN subframe basic configuration, can only carry out in the subframe in the set of MBSFN sub-frame configuration with the cluster transmission that broadcast mode carries out;
Step S403:eNB sends SIB13, comprising the pre-configured resource and the indication information in resource cycle of T-MCCH;
Step S404:eNB sends T-MCCH on the pre-configured resource of T-MCCH when confirming to send T-MCCH, carry dispatching command (can be carried by MSI MACCE) in first subframe of transmission T-MCCH, the concrete subframe position of indication cluster transfer of data.
The UE side:
UE receives SIB1, obtains the SIB13 schedule information;
UE receives SIB2, obtains the MBSFN subframe configuration information;
UE receives SIB13, obtains pre-configured resource of T-MCCH and resource cycle;
UE receives T-MCCH on the pre-configured resource of each T-MCCH, if there is not the T-MCCH transmission, then UE abandons the data that receive.
UE receives packet, reads T-MCCH, if comprise transmitting and scheduling order MSI MAC CE in this packet, in conjunction with the schedule information among MSI MAC CE and the T-MCCH, receives the data of T-MCH transmission.
The a pair of UE of embodiment receives packet and carries out demodulation, comparatively power consumption in each pre-configured T-MCCH subframe.
Embodiment two: referring to Figure 11, by PDCCH dispatching command indication T-MCCH transmission.
The eNB side:
Step S501:eNB transmitting system message SIB1 is comprising the schedule information of SIB13;
Step S502:eNB transmitting system message SIB2 comprising MBSFN subframe basic configuration, with the cluster transmission that broadcast mode carries out, can only carry out in the subframe in the set of MBSFN sub-frame configuration;
Step S503:eNB sends SIB13, pre-configured resource and the resource cycle of notice T-MCCH;
Step S504:eNB sends the PDCCH dispatching command, and indicating has the T-MCCH transmission on the pre-configured resource location of follow-up T-MCCH;
Step S505:eNB sends T-MCCH on the pre-configured resource of T-MCCH when confirming to send T-MCCH, carry dispatching command (can be carried by MSI MAC CE) on first subframe of transmission T-MCCH, the concrete subframe position of indication cluster transfer of data.
The UE side:
UE receives SIB1, therefrom obtains the SIB13 schedule information;
UE receives SIB2, therefrom obtains the MBSFN subframe configuration information;
UE receives SIB13, therefrom obtains pre-configured resource of T-MCCH and resource cycle;
UE receives the PDCCH dispatching command, confirms follow-uply will receive T-MCCH.Between step S503 and step S504, before each T-MCCH possibly send, UE wanted the order of dragging out a miserable existence of trial solution key.
After receiving the dispatching command of indication T-MCCH transmission, UE receives packet, reads T-MCCH, if comprise transmitting and scheduling order MSI MAC CE in this packet, in conjunction with the schedule information among MSI MAC CE and the T-MCCH, receives the data of T-MCH transmission.
Embodiment three: referring to Figure 12, do not have the T-MCCH of dispatching command to retransmit.
The eNB side:
Step S601:eNB sends T-MCCH initial transmission data.
Step S602:eNB sends the T-MCCH data retransmission; The time interval between step S602 and the step S601 is the retransmission time interval of the T-MCCH that in system message (like SIB13), indicates of eNB, and the T-MCCH retransmission time interval is the T-MCCH integral multiple in pre-configured resource cycle.
The T-MCCH that step S603:eNB sends next time retransmits, and the time interval between step S602 and the step S601 is the retransmission time interval of the T-MCCH that in system message (like SIB13), indicates of eNB.
The UE side:
UE receives the data of T-MCCH initial transmission on the pre-configured resource location of T-MCCH.
UE receives the T-MCCH data retransmission.Because UE is understanding T-MCCH at the pre-configured resource location of each T-MCCH, so UE need not discern initial transmission or retransmit, the T-MCCH content of reading with new explanation is replaced former T-MCCH content and is got final product.
Embodiment four: referring to Figure 13, T-MCCH retransmits with the scheduling of PDCCH dispatching command.
The eNB side:
Step S701:eNB sends the PDCCH dispatching command;
Step S702:eNB sends the T-MCCH that will transmit of PDCCH dispatching command indication, and PDCCH dispatching command and T-MCCH can send in same subframe.
Step S703:eNB sends the PDCCH dispatching command;
Step S704:eNB sends the T-MCCH data retransmission of PDCCH dispatching command indication.
Step S705:eNB sends the PDCCH dispatching command;
Step S706:eNB sends the T-MCCH data retransmission of PDCCH dispatching command indication.
The UE side:
UE receives the PDCCH dispatching command, on the pre-configured resource of T-MCCH subsequently, receives T-MCCH.
UE receives the PDCCH dispatching command, on the pre-configured resource of T-MCCH subsequently, receives the T-MCCH data retransmission.If carry the new data indication in the PDCCH dispatching command, UE can not receive the T-MCCH data retransmission under the situation that successfully receives T-MCCH.
Referring to Figure 14, a kind of group service dispensing device that the embodiment of the invention provides comprises:
Resource information notification unit 11 is used for the pre-configured resource information of cluster multicast control channel T-MCCH is notified to user equipment (UE);
T-MCCH transmitting element 12 is used for when needs send T-MCCH, on the pre-configured resource of T-MCCH, sending T-MCCH;
Wherein, the pre-configured resource of said T-MCCH is periodic resource.
Preferably, the pre-configured resource of said T-MCCH, pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE.
Preferably, said resource information notification unit 11 is notified the pre-configured resource information of T-MCCH to UE through system message.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Preferably, this device also comprises:
Dispatching command transmitting element 13; Be used for after resource information notification unit 11 is notified the pre-configured resource information of T-MCCH to UE; T-MCCH transmitting element 12 sends before the T-MCCH, and UE will send T-MCCH on the pre-configured resource of T-MCCH through PDCCH dispatching command notice.
Preferably, comprising in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
Preferably, if be about to the T-MCCH of transmission, be new T-MCCH, then dispatching command transmitting element 13 is changed to the first preset numerical value with NDI; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then dispatching command transmitting element 13 is changed to preset second value with NDI; Perhaps,
Dispatching command transmitting element 13 overturns the value of NDI between first preset numerical value and second value, wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
Preferably, this device also comprises:
T-MCCH re-transmission period notification unit 14 is used for through system message, and the re-transmission period of T-MCCH is notified to UE.
Preferably, said T-MCCH transmitting element 12 also is used for:
After initialization T-MCCH gave UE, the re-transmission period according to T-MCCH retransmitted T-MCCH to UE.
Preferably, this device also comprises:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of T-MCCH transmitting element T-MCCH.
Preferably, this device also comprises:
Preferably, said group service dispensing device is eNB.
Referring to Figure 15, a kind of group service receiving system that the embodiment of the invention provides comprises:
Resource information receiving element 21 is used to receive the pre-configured resource information of the cluster multicast control channel T-MCCH that evolved base station eNB sends;
Receive T-MCCH unit 22, be used on the pre-configured resource of T-MCCH, receiving T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
Preferably, the pre-configured resource of said T-MCCH is that pre-configured and notice is given resource information receiving element 21 by many sub-districts/multicast coordinated entity MCE, is notified to UE's by the resource information receiving element again.
Preferably, resource information receiving element 21 receives the pre-configured resource information of T-MCCH through system message.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Preferably, this device also comprises:
Receiving scheduling command unit 23; Be used for after resource information receiving element 21 receives the pre-configured resource information of T-MCCH; Receive T-MCCH unit 22 and receive before the T-MCCH, confirm that through the PDCCH dispatching command eNB will send T-MCCH on the pre-configured resource of T-MCCH.
Preferably, comprising in the PDCCH dispatching command that said receiving scheduling command unit 23 receives being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
Preferably, said NDI has following two kinds of value mode:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then the value of NDI is the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
Preferably, this device also comprises:
Re-transmission period receiving element 24 is used for through system message, receives the re-transmission period of T-MCCH.
Preferably, said reception T-MCCH unit 22 also is used for after UE initially receives T-MCCH:
According to the re-transmission period of T-MCCH, receive the T-MCCH that eNB retransmits.
Preferably, this device also comprises:
T-MCH receiving element 25 is used for the media access control MAC layer schedule information according to eNB, in conjunction with the schedule information among the T-MCCH, receives cluster Multicast Channel T-MCH.
Preferably, said group service receiving system is UE.
Referring to Figure 16, a kind of resource allocation device that the embodiment of the invention provides comprises:
T-MCCH resource configuration unit 31 is used to dispose the resource of bearing cluster multicast control channel T-MCCH, obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
T-MCCH resource notification unit 32 is used for the pre-configured resource information of T-MCCH is notified to eNB.
Preferably, this device also comprises:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
Preferably, the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
Said resource allocation device is many sub-districts/multicast coordinated entity MCE.
In sum, the embodiment of the invention periodically disposes the resource of carrying T-MCCH, when needs transmission T-MCCH, on pre-configured resource, transmits.Particularly, by the uniform dispatching entity, like MCE, pre-configured resource and cycle and the transformat of indication eNB T-MCCH.ENB is through system message, like SIB13 notice UE T-MCCH predetermined configuration.ENB is with the transmission of PDCCH dispatching command notice T-MCCH.Introduce the T-MCCH retransmission mechanism, the T-MCCH retransmission time interval like SIB13, is notified UE by system message.Introduce 1bit new data indication NDI in the T-MCCH dispatching command, be used to indicate whether to be that T-MCCH retransmits.Therefore,, realized carrying out the cluster transmission, solved with the transmission performance that has improved the cluster transmission when disturbing frequently with broadcast mode through the technical scheme that the embodiment of the invention provides.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (50)
1. a group service sending method is characterized in that, this method comprises:
Evolved base station eNB notifies the pre-configured resource information of cluster multicast control channel T-MCCH to user equipment (UE);
When eNB sends T-MCCH at needs, on the pre-configured resource of T-MCCH, send T-MCCH;
Wherein, the pre-configured resource of said T-MCCH is periodic resource.
2. method according to claim 1 is characterized in that, the pre-configured resource of said T-MCCH, and pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE.
3. method according to claim 1 is characterized in that, eNB notifies the pre-configured resource information of T-MCCH to UE through system message.
4. according to claim 1,2 or 3 described methods, it is characterized in that the pre-configured resource information of said T-MCCH comprises: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
5. method according to claim 1 is characterized in that, eNB notifies the pre-configured resource information of T-MCCH to after the UE, sends before the T-MCCH, and this method also comprises:
ENB will send T-MCCH through PDCCH dispatching command notice UE on the pre-configured resource of T-MCCH.
6. method according to claim 5 is characterized in that, comprises in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
7. method according to claim 6 is characterized in that, said NDI has following two kinds of value mode:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then NDI is changed to the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then NDI is changed to preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
8. method according to claim 1 is characterized in that, this method also comprises:
ENB notifies the re-transmission period of T-MCCH to UE through system message.
9. method according to claim 8 is characterized in that, sends new T-MCCH to after the UE at eNB, and this method also comprises:
ENB retransmits T-MCCH to UE according to the re-transmission period of T-MCCH.
10. method according to claim 1 is characterized in that, eNB notifies the pre-configured resource information of T-MCCH to after the UE, and before sending T-MCCH on the pre-configured resource of T-MCCH, this method also comprises:
Receive the following information content of uniform dispatching entity notice:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
11. method according to claim 10 is characterized in that, this method also comprises:
ENB sends multi-plot joint transmission data and gives UE according to the information content of uniform dispatching entity notice.
12. a group service method of reseptance is characterized in that, this method comprises:
User equipment (UE) receives the pre-configured resource information of the cluster multicast control channel T-MCCH of evolved base station eNB transmission;
UE receives T-MCCH on the pre-configured resource of T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
13. method according to claim 12 is characterized in that, the pre-configured resource of said T-MCCH is that pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE, is notified to UE's by eNB again.
14. method according to claim 12 is characterized in that, UE receives the pre-configured resource information of T-MCCH through system message.
15., it is characterized in that the pre-configured resource information of said T-MCCH comprises according to claim 12,13 or 14 described methods: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
16. method according to claim 12 is characterized in that, UE receives after the pre-configured resource information of T-MCCH, receives before the T-MCCH, and this method also comprises:
UE confirms that through the PDCCH dispatching command eNB will send T-MCCH on the pre-configured resource of T-MCCH.
17. method according to claim 16 is characterized in that, comprises in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
18. method according to claim 17 is characterized in that, said NDI has following two kinds of value mode:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then NDI is changed to the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then NDI is changed to preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
19. method according to claim 12 is characterized in that, this method also comprises:
UE receives the re-transmission period of T-MCCH through system message.
20. method according to claim 19 is characterized in that, after UE initially received T-MCCH, this method also comprised:
UE receives the T-MCCH that eNB retransmits according to the re-transmission period of T-MCCH.
21. method according to claim 12 is characterized in that, this method also comprises:
UE in conjunction with the schedule information among the T-MCCH, receives cluster Multicast Channel T-MCH according to the media access control MAC layer schedule information of eNB.
22. a resource allocation methods is characterized in that, this method comprises:
The resource of uniform dispatching physical arrangements bearing cluster multicast control channel T-MCCH obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
The uniform dispatching entity notifies the pre-configured resource information of T-MCCH to eNB.
23. method according to claim 22 is characterized in that, the uniform dispatching entity notifies the pre-configured resource information of T-MCCH to after the eNB, and this method also comprises:
The uniform dispatching entity notifies the following information content to give eNB:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
24. method according to claim 22 is characterized in that, said uniform dispatching entity is many sub-districts/multicast coordinated entity MCE.
25., it is characterized in that the pre-configured resource information of said T-MCCH comprises according to claim 22,23 or 24 described methods: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
26. a group service dispensing device is characterized in that, this device comprises:
The resource information notification unit is used for the pre-configured resource information of cluster multicast control channel T-MCCH is notified to user equipment (UE);
The T-MCCH transmitting element is used for when needs send T-MCCH, on the pre-configured resource of T-MCCH, sending T-MCCH;
Wherein, the pre-configured resource of said T-MCCH is periodic resource.
27. device according to claim 26 is characterized in that, the pre-configured resource of said T-MCCH, and pre-configured and notice is given eNB by many sub-districts/multicast coordinated entity MCE.
28. device according to claim 26 is characterized in that, said resource information notification unit is notified the pre-configured resource information of T-MCCH to UE through system message.
29., it is characterized in that the pre-configured resource information of said T-MCCH comprises according to claim 26,27 or 28 described devices: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
30. device according to claim 26 is characterized in that, this device also comprises:
The dispatching command transmitting element; Be used for after the resource information notification unit is notified the pre-configured resource information of T-MCCH to UE; The T-MCCH transmitting element sends before the T-MCCH, and UE will send T-MCCH on the pre-configured resource of T-MCCH through PDCCH dispatching command notice.
31. device according to claim 30 is characterized in that, comprises in the said PDCCH dispatching command being used to indicate the T-MCCH that is about to transmission, is the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
32. device according to claim 31 is characterized in that, if be about to the T-MCCH of transmission, is new T-MCCH, then the dispatching command transmitting element is changed to the first preset numerical value with NDI; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the dispatching command transmitting element is changed to preset second value with NDI; Perhaps,
The dispatching command transmitting element overturns the value of NDI between first preset numerical value and second value, wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
33. device according to claim 26 is characterized in that, this device also comprises:
T-MCCH re-transmission period notification unit is used for through system message, and the re-transmission period of T-MCCH is notified to UE.
34. device according to claim 33 is characterized in that, said T-MCCH transmitting element also is used for:
After initialization T-MCCH gave UE, the re-transmission period according to T-MCCH retransmitted T-MCCH to UE.
35. device according to claim 26 is characterized in that, this device also comprises:
Information receiving unit; Be used for after the resource information notification unit is notified the pre-configured resource information of T-MCCH to UE; Before the T-MCCH transmitting element sends T-MCCH on the pre-configured resource of T-MCCH, receive the following information content of uniform dispatching entity notice:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of T-MCCH transmitting element T-MCCH.
36. device according to claim 35 is characterized in that, this device also comprises:
Data transmission unit is used for the information content according to the information receiving unit reception, sends multi-plot joint transmission data and gives UE.
37. a group service receiving system is characterized in that, this device comprises:
The resource information receiving element is used to receive the pre-configured resource information of the cluster multicast control channel T-MCCH that evolved base station eNB sends;
Receive the T-MCCH unit, be used on the pre-configured resource of T-MCCH, receiving T-MCCH, wherein, the pre-configured resource of said T-MCCH is periodic resource.
38., it is characterized in that the pre-configured resource of said T-MCCH is that pre-configured and notice is given the resource information receiving element by many sub-districts/multicast coordinated entity MCE, is notified to UE's by the resource information receiving element again according to the described device of claim 37.
39., it is characterized in that the resource information receiving element receives the pre-configured resource information of T-MCCH through system message according to the described device of claim 37.
40., it is characterized in that the pre-configured resource information of said T-MCCH comprises according to claim 37,38 or 39 described devices: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
41., it is characterized in that this device also comprises according to the described device of claim 37:
The receiving scheduling command unit; Be used for after the resource information receiving element receives the pre-configured resource information of T-MCCH; Receive the T-MCCH unit and receive before the T-MCCH, confirm that through the PDCCH dispatching command eNB will send T-MCCH on the pre-configured resource of T-MCCH.
42., it is characterized in that according to the described device of claim 41, comprise in the PDCCH dispatching command that said receiving scheduling command unit receives being used to indicate the T-MCCH that is about to transmission, be the new new data that T-MCCH transmits or T-MCCH retransmits indication NDI.
43., it is characterized in that said NDI has following two kinds of value mode according to the described device of claim 42:
Mode one, if be about to the T-MCCH of transmission, be new T-MCCH, then the value of NDI is the first preset numerical value; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is preset second value;
The value of mode two, NDI is overturn between first preset numerical value and second value, and wherein, roll over condition is new T-MCCH for being about to the T-MCCH of transmission; If be about to the T-MCCH of transmission, be the T-MCCH that retransmits, then the value of NDI is constant.
44., it is characterized in that this device also comprises according to the described device of claim 37:
The re-transmission period receiving element is used for through system message, receives the re-transmission period of T-MCCH.
45., it is characterized in that said reception T-MCCH unit also is used for according to the described device of claim 44 after UE initially receives T-MCCH:
According to the re-transmission period of T-MCCH, receive the T-MCCH that eNB retransmits.
46., it is characterized in that this device also comprises according to the described device of claim 37:
The T-MCH receiving element is used for the media access control MAC layer schedule information according to eNB, in conjunction with the schedule information among the T-MCCH, receives cluster Multicast Channel T-MCH.
47. a resource allocation device is characterized in that, this device comprises:
The T-MCCH resource configuration unit is used to dispose the resource of bearing cluster multicast control channel T-MCCH, obtains the pre-configured resource information of T-MCCH; Wherein, the resource of said T-MCCH is periodic resource;
T-MCCH resource notification unit is used for the pre-configured resource information of T-MCCH is notified to eNB.
48., it is characterized in that this device also comprises according to the described device of claim 47:
Information transmitting unit is used for after T-MCCH resource notification unit is notified the pre-configured resource information of T-MCCH to eNB, notifies the following information content to give eNB:
The content of T-MCCH;
The data content of cluster multicast service channel T-MTCH;
The logical channel number configuration of T-MTCH;
The subframe that logic channel is mapped to the T-MCH behind the cluster Multicast Channel T-MCH takies scope, modulation coding mode MCS form and update cycle;
The time point of the actual transmission of eNB T-MCCH.
49., it is characterized in that said device is many sub-districts/multicast coordinated entity MCE according to the described device of claim 47.
50., it is characterized in that the pre-configured resource information of said T-MCCH comprises according to claim 47,48 or 49 described devices: the pre-configured resource cycle of T-MCCH, pre-configured subframe position and transformat.
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| PCT/CN2012/088040 WO2013135094A1 (en) | 2012-03-14 | 2012-12-31 | Trunking service transmitting method and device |
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| CN102638767B (en) | 2016-06-01 |
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