CN103856907B - Long Term Evolution multimedia broadcast multicast service transmission method and base station - Google Patents
Long Term Evolution multimedia broadcast multicast service transmission method and base station Download PDFInfo
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- CN103856907B CN103856907B CN201210504728.9A CN201210504728A CN103856907B CN 103856907 B CN103856907 B CN 103856907B CN 201210504728 A CN201210504728 A CN 201210504728A CN 103856907 B CN103856907 B CN 103856907B
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Abstract
The invention discloses Long Term Evolution multimedia broadcast multicast service transmission method and base station.Method includes：The pre-defined MBMS special carriers for LTE MBMS system TDD modes, which is exclusively used in transmission MBMS, and the frame structure for defining the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, being made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces；The frequency point of MBMS special carriers is periodically broadcasted by LTE base station, and when needing to issue MBMS, the MBMS is transmitted according to the frame structure of the MBMS special carriers of definition.The present invention improves the MBMS service transmission efficiency of LTE MBMS systems in tdd mode.
Description
Technical field
The present invention relates to multimedia broadcast multi-broadcasting business（MBMS,Multimedia Broadcast
MulticastService）Technical field, and in particular to Long Term Evolution（LTE, Long Term Evolution）MBMS business passes
Transmission method and base station.
Background technology
Existing LTE MBMS systems use mixed carrier transmission mode, i.e., both transmit user equipment on same carrier wave
（UE, User Equipment）Unicast（unicast）Business, can also transmit MBMS business.Fig. 1 adopts for LTE MBMS systems
Use time division duplex（TDD, Time DivisionDuplexing）Transmission mechanism schematic diagram during pattern, as shown in Figure 1, unicast industry
Business by time division multiplex resources, i.e., carries out isolation transmission with MBMS business by different time-gap, wherein, GP is protection interval
（Guard Period）, DwPTS is descending pilot frequency time slot, and UpPTS is uplink pilot time slot, and MBMS business passes through multicast and broadcast list
Frequency net（MBSFN, Multicast Broadcast SingleFrequency Network）Sub-frame transmission, in tdd mode,
MBMS business can at most be transmitted by 5 MBSFN sub-frames.And in the fdd mode, MBMS business can at most pass through 6 MBSFN
Subframe is transmitted.
Existing LTE MBMS systems can be taken into account unicast service and the transmission of MBMS business at the same time based on same carrier wave and be needed
Ask and be designed for uniformity, but there is also following problem：
1）When unicast service or more MBS business demands, inevitably produce resource and tie up phenomenon, and may be right
The service quality of business（QOS, Quality of Service）Have an impact.
2）Since it is considered that unicast service and the respective business demand of MBMS business and scene, it is understood that there may be some resources profit
Redundancy, including when MBSFN sub-frame is not taken by MBMS business, although network side can be transmitted with MBSFN sub-frame
Unicast service, but can cause：Since UE has to monitor MBSFN sub-frame at any time, and larger power consumption phenomenon is produced, and in fact
Network side may not be in corresponding subframe scheduling data on border.
The content of the invention
The present invention provides LTE MBMS transmissions method and LTE MBMS systems, LTE base station, LTE UE, to improve LTE
The MBMS service transmission efficiency of MBMS systems in tdd mode.
The technical proposal of the invention is realized in this way：
A kind of Long Term Evolution LTE multimedia broadcast multi-broadcasting business MBMS transmission method, this method include：
The pre-defined MBMS special carriers for LTE MBMS system Time Division Duplex TDD patterns, the carrier wave are exclusively used in passing
Defeated MBMS, and the frame structure for defining the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special subframe, downlink
Subframe and the sub-frame of uplink dynamically introduced are formed；
The frequency point of MBMS special carriers is periodically carried and is broadcasted in system broadcast message by LTE base station, and is worked as
When needing to issue MBMS, which is transmitted according to the frame structure of the MBMS special carriers of definition.
When LTE base station supports the frame structure of two or more MBMS special carriers at the same time,
The LTE base station periodically the frequency points of MBMS special carriers is carried be broadcasted in system broadcast message into
One step includes：LTE base station periodically carries the frame structure type identification of MBMS special carriers wide in system broadcast message
Broadcast is gone, so that LTE UE are according to the frame structure of the currently used MBMS special carriers of the definite LTE base station of the type mark.
The LTE base station periodically the frequency points of MBMS special carriers is carried be broadcasted in system broadcast message into
One step includes：The cell ID that MBMS special carriers are applicable in periodically is carried and broadcasted in system broadcast message by LTE base station
Go out.
When LTE base station needs LTE UE feedback informations, uplink is dynamically introduced in the frame structure of MBMS special carriers
Frame, and the configuration information of sub-frame of uplink is carried and is broadcasted in system broadcast message.
The configuration information of the sub-frame of uplink includes：Subframe position of the sub-frame of uplink in the frame structure of MBMS special carriers
Put, and/or appearance cycle of the sub-frame of uplink in MBMS special carriers.
When LTE base station finds that MBMS special carrier relevant informations change, by the MBMS special carrier phases after change
Information carrying is closed to be broadcasted in system broadcast message.
The MBMS special carriers relevant information includes：Frequency point, the frame structure of MBMS special carriers of MBMS special carriers
Type identification, the cell ID that MBMS special carriers are applicable in, the sub-frame of uplink dynamically introduced configuration information in one or appoint
Meaning combination.
A kind of LTE MBMS transmissions method, this method include：
LTE UE receive the frequency point for the MBMS special carriers that LTE base station is sent by system broadcast message, according to fixed in advance
The frame structure of the MBMS special carriers of justice, monitors on the frequency point and receives MBMS, the frame structure of the MBMS special carriers
For：Only it is made of special subframe and downlink subframe, alternatively, by special subframe, downlink subframe and the sub-frame of uplink structure dynamically introduced
Into.
The frequency point that the LTE UE receive the MBMS special carriers that LTE base station is sent by system broadcast message further wraps
Include：
LTE UE receive the frame structure type identification for the MBMS special carriers that LTE base station is sent by system broadcast message,
One is selected in the frame structure of pre-defined MBMS special carriers according to the type mark；
And the frame structure of MBMS special carriers that the basis pre-defines, monitored on the frequency point and receive MBMS
For：According to the frame structure of selected MBMS special carriers, monitored on the frequency point and receive MBMS.
The method is further included：
LTE UE receive the configuration information for the sub-frame of uplink that LTE base station is sent by system broadcast message, according to the configuration
Information is to LTE base station feedback information.
The configuration information of the sub-frame of uplink includes：Subframe position of the sub-frame of uplink in the frame structure of MBMS special carriers
Put, and/or appearance cycle of the sub-frame of uplink in MBMS special carriers.
The method is further included：
LTE UE, which receive the related of the MBMS special carriers after the change that LTE base station is sent by system broadcast message, to be believed
Breath, the relevant information include：The frequency point of MBMS special carriers, the special load of frame structure type identification, MBMS of MBMS special carriers
One or any group in the configuration information of the sub-frame of uplink dynamically introduced in cell ID that ripple is applicable in, MBMS special carriers
Close, MBMS is received or to LTE base station feedback information according to the relevant information of the MBMS special carriers after the change.
A kind of LTE MBMS systems, including：
LTE base station：Periodically the frequency point of the MBMS special carriers of tdd mode is carried and is broadcasted in system broadcast message
Go out, and when needing to issue MBMS, which is transmitted according to the frame structure of the MBMS special carriers of definition, the MBMS is special
Carrier wave is exclusively used in transmission MBMS, and the frame structure of the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special
Subframe, downlink subframe and the sub-frame of uplink composition dynamically introduced；
LTE UE：The frequency point for the MBMS special carriers that LTE base station is sent by system broadcast message is received, according to pre-
The frame structure of the MBMS special carriers first defined, monitors on the frequency point and receives MBMS.
When the LTE base station supports the frame structure of two or more MBMS special carriers at the same time,
The LTE base station is further used for, and is being by the frame structure type identification carrying of MBMS special carriers periodically
It is broadcasted in system broadcast message；
The LTE UE are further used for, when receiving the frame structure type identification of the MBMS special carriers, according to
The type mark determines the frame structure of the currently used MBMS special carriers of LTE base station.
The LTE base station is further used for, and the cell ID for being periodically applicable in MBMS special carriers is carried in system
It is broadcasted in broadcast message.
The LTE base station is further used for, when needing LTE UE feedback informations, in the frame structure of MBMS special carriers
Sub-frame of uplink is dynamically introduced, and the configuration information of sub-frame of uplink is carried and is broadcasted in system broadcast message.
The LTE base station is further used for, will when the configuration information for the sub-frame of uplink for finding to dynamically introduce changes
The configuration information of the sub-frame of uplink dynamically introduced after change is broadcasted.
The LTE base station is further used for, when finding that MBMS special carrier relevant informations change, after change
MBMS special carriers relevant information is carried and is broadcasted in system broadcast message, the MBMS special carriers relevant information bag
Include：The cell ID that the frequency point of MBMS special carriers, the frame structure type identification of MBMS special carriers, MBMS special carriers are applicable in
In one or any combination.
A kind of LTE base station, including：
Signaling broadcast module：Periodically the frequency point of the MBMS special carriers of tdd mode is carried in system broadcast message
In be broadcasted；
MBMS transmission module：When needing to issue MBMS, according to the frame structure of the MBMS special carriers of the tdd mode of definition
The MBMS is transmitted, the MBMS special carriers are exclusively used in transmission MBMS, and the frame structure of the carrier wave is：Only by special subframe with
Row subframe is formed, alternatively, being made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces.
When the LTE base station supports the frame structure of two or more MBMS special carriers at the same time,
The signaling broadcast module is further used for, and periodically carries the frame structure type identification of MBMS special carriers
It is broadcasted in system broadcast message.
The signaling broadcast module is further used for, and the cell ID for being periodically applicable in MBMS special carriers carries
It is broadcasted in system broadcast message.
The signaling broadcast module is further used for, when needing LTE UE feedback informations, in the frame of MBMS special carriers
Sub-frame of uplink is dynamically introduced in structure, and the configuration information of sub-frame of uplink is broadcasted.
The signaling broadcast module is further used for, when the configuration information for the sub-frame of uplink for finding to dynamically introduce changes
When, the configuration information of the sub-frame of uplink dynamically introduced after change is broadcasted.
The signaling broadcast module is further used for, and when finding that MBMS special carrier relevant informations change, will become
MBMS special carriers relevant information after change is carried to be broadcasted in system broadcast message, the related letter of the MBMS special carriers
Breath includes：The cell that the frequency point of MBMS special carriers, the frame structure type identification of MBMS special carriers, MBMS special carriers are applicable in
One in mark or any combination.
A kind of LTE UE, including：The MBMS for the tdd mode sent for receiving LTE base station by system broadcast message is special
With the frequency point of carrier wave, according to the frame structure of the MBMS special carriers of pre-defined tdd mode, monitor and connect on the frequency point
The module of MBMS is received, the frame structure of the MBMS special carriers is：Only it is made of special subframe and downlink subframe, alternatively, by spy
Different subframe, downlink subframe and the sub-frame of uplink composition dynamically introduced.
The UE further comprises：The MBMS special carriers sent for receiving LTE base station by system broadcast message
Frame structure type identification, the module for the frame structure for determining the currently used MBMS special carriers of LTE base station is identified according to the type.
The UE further comprises：The configuration for the sub-frame of uplink sent for receiving LTE base station by system broadcast message
Information, the module according to the configuration information to LTE base station feedback information.
The UE further comprises：MBMS after the change sent for receiving LTE base station by system broadcast message is special
With the relevant information of carrier wave, which includes：The frequency point of MBMS special carriers, the frame structure type mark of MBMS special carriers
In the configuration information of the sub-frame of uplink know, dynamically introduced in the cell ID that MBMS special carriers are applicable in, MBMS special carriers
One or any combination, receive MBMS according to the relevant information of the MBMS special carriers after the change or are fed back to LTE base station
The module of information.
Compared with prior art, the invention avoids influencing each other between MBMS business and unicast service, LTE is improved
The MBMS service transmission efficiency of MBMS systems in tdd mode.
Brief description of the drawings
Fig. 1 is transmission mechanism schematic diagram when existing LTE MBMS systems use tdd mode；
Fig. 2 is LTE MBMS service transmission methods flow chart provided in an embodiment of the present invention；
Fig. 3 is the composition schematic diagram of LTE base station provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.
Fig. 2 is LTE MBMS service transmission methods flow chart provided in an embodiment of the present invention, as shown in Fig. 2, its specific step
It is rapid as follows：
Step 201：The pre-defined MBMS special carriers for LTE MBMS system TDD modes, the carrier wave are exclusively used in passing
Defeated MBMS business, and define the frame structure of the carrier wave.
The frame structure of the MBMS special carriers can be one of the following two kinds：
First, the frame is only made of special subframe and downlink subframe, wherein, downlink subframe is only used for transmission MBMS business.
2nd, the frame is made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces, wherein, downlink subframe is only used
In transmission MBMS business, sub-frame of uplink is used for transmission the feedback information for MBMS business.What the sub-frame of uplink dynamically introduced referred to
It is, when needing UE feedback informations, just to introduce sub-frame of uplink in the frame structure；When UE feedback informations are not required, in frame structure
Still special subframe and downlink subframe are only included.
Tdd mode supports two kinds of ascending-descending subframes switching point cycles, and one kind is 5ms, and one kind is 10ms.Table 1 respectively this go out
The frame structure of MBMS special carriers under both in ascending-descending subframes switching point cycles：
The frame structure example of MBMS special carriers during the difference ascending-descending subframes switching point cycle of table 1
As shown in table 1, the ascending-descending subframes Configuration Type number when setting the ascending-descending subframes switching point cycle as 5ms is 7, this
When, in addition to subframe 1,6 is special subframe S, other subframes are all downlink subframe D；Set the ascending-descending subframes switching point cycle as
Ascending-descending subframes Configuration Type number during 10ms is 8, and at this time, in addition to subframe 1 is special subframe S, other subframes are all downlink
Subframe D.
Sub-frame of uplink is not all included in two kinds of frame structures shown in table 1.When needing to introduce sub-frame of uplink, by shown in table 1
One or more of two kinds of frame structures downlink subframe replace with sub-frame of uplink.
It is pointed out that as long as the ascending-descending subframes Configuration Type number in the embodiment of the present invention in existing protocol with having gone out
Existing ascending-descending subframes Configuration Type difference.
Step 202：LTE base station is periodically by the frequency point of current MBMS special carriers, the special loads of currently used MBMS
The frame structure type identification of ripple is broadcasted by system broadcast message, and when needing to issue MBMS business, using currently making
The frequency point and frame structure of MBMS special carriers transmit the MBMS business.
Ascending-descending subframes Configuration Type number in frame structure type identification, that is, table 1 of MBMS special carriers.
In practical applications, if desired, the cell ID that MBMS special carriers can also be applicable in by LTE base station passes through system
Broadcast is gone out.
Frame structure type identification, the MBMS special carriers of frequency point, MBMS special carriers in broadcasting MBMS special carrier are fitted
During cell ID, LTE base station can be broadcasted by existing system broadcast message, can also pass through newly-increased system
Broadcast is gone out, and only can be disposably broadcasted all information by a system broadcast message, can also be led to
Multiple system broadcast messages are crossed to be broadcasted all information in batches.
Step 203：LTE UE are received and are recorded frequency point, the MBMS special carriers of the MBMS special carriers of LTE base station broadcast
Frame structure type identification, learn that the currently used MBMS of LTE base station is special according to the frame structure type identification of MBMS special carriers
With the frame structure of carrier wave, according to the frame structure, monitored from the frequency point of MBMS special carriers and receive MBMS business.
Additionally need, it is noted that if the tdd mode of LTE MBMS systems define only a kind of frame of MBMS special carriers
Structure, then LTE base station can not also broadcasting MBMS special carrier frame structure type identification because LTE UE are not required to pair at this time
The frame structure of MBMS special carriers makes a choice, LTE UE receive LTE base station broadcast MBMS special carriers frequency point after,
MBMS business is directly received on the frequency point using the frame structure of unique MBMS special carriers of acquiescence.
In addition, in embodiments of the present invention, when the MBMS special carriers that LTE base station uses frequency point and/or frame structure and/
Or applicable cell is when changing, LTE base station can by system broadcast message by the new frequency point of MBMS special carriers and/or
New frame structure type identifies and/or newly applicable cell ID etc. is broadcasted.
In addition, in practical applications, some LTE MBMS systems are such as：Uplink feedback can be introduced in LTE R10 MBMS systems
Information, in order to adapt to such case, in the embodiment of the present invention, can use following solution：
First, the special subframe in the frame structure of MBMS special carriers is utilized（That is S subframes）UpPTS transmit the uplink of UE
Feedback information.
2nd, sub-frame of uplink is dynamically introduced in the frame structure of MBMS special carriers（That is U subframes）It is anti-to transmit the uplink of UE
Feedforward information.
At this time, when needing LTE UE feedback informations, LTE base station shifts to an earlier date sending system broadcast message, which carries can
For the configuration information of the U subframes of feeding back uplink information, such as：Positional information of the U subframes in MBMS special carriers, the position
Information includes：Subframe position of the U subframes in the frame structure of MBMS special carriers, and/or U subframes are in MBMS special carriers
There is the cycle
After LTE UE receive the system broadcast message, the configuration information of U subframes is learnt, then when the U subframes occur, pass through
The U subframes are to LTE base station feeding back uplink information.
When the configuration information of U subframes changes, LTE base station will be by system broadcast message by the U subframes after change
Configuration information send.
In practical applications, can be with the delivery time of pre-specified MBMS special carriers Notification of Changes message, or in advance
First pass through the delivery time that system broadcast message issues MBMS special carrier Notification of Changes message, the Notification of Changes message-specific in
The change information of MBMS special carriers is sent, such as：Frequency point, frame structure, the applicable cell mark of MBMS special carriers after change
One in the configuration information of knowledge and U subframes in MBMS special carriers or any combination.LTE UE are in MBMS special carriers
The delivery time of Notification of Changes message actively goes to obtain the message, so as to learn the change information of MBMS special carriers；Can also
Cancel existing page notification message, but the delivery time in the existing page notification message is changed to send the special loads of MBMS
Ripple Notification of Changes message.
Fig. 3 is the composition schematic diagram of LTE base station provided in an embodiment of the present invention, as shown in figure 3, it mainly includes：Signaling
Broadcast module 31 and MBMS transmission module 32, wherein：
Signaling broadcast module 31：Periodically the frequency point of the MBMS special carriers of tdd mode is carried and is disappeared in system broadcasts
It is broadcasted in breath, and the frequency point is sent to MBMS transmission module 32.
MBMS transmission module 32：The frequency point for the MBMS special carriers that signaling broadcast module 31 is sent is received, when needs issue
During MBMS, the frame structure of the MBMS special carriers on the frequency point according to the tdd mode of definition transmits the MBMS, and the MBMS is special
Carrier wave is exclusively used in transmission MBMS, and the frame structure of the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special
Subframe, downlink subframe and the sub-frame of uplink composition dynamically introduced.
When LTE base station supports the frame structure of two or more MBMS special carriers at the same time, signaling broadcast module 31 is further
For periodically the frame structure type identification of MBMS special carriers to be carried and is broadcasted in system broadcast message, at the same time
The frame structure type identification is sent to MBMS transmission module 32, so that MBMS transmission module 32 is according to the frame structure type identification
Determine currently used frame structure.
Signaling broadcast module 31 is further used for, and is being by the cell ID carrying that MBMS special carriers are applicable in periodically
It is broadcasted in system broadcast message.
Signaling broadcast module 31 is further used for, when needing LTE UE feedback informations, in the frame knot of MBMS special carriers
Sub-frame of uplink is dynamically introduced in structure, and the configuration information of the sub-frame of uplink is carried and is broadcasted in system broadcast message.
Signaling broadcast module 31 is further used for, when the configuration information for the sub-frame of uplink for finding to dynamically introduce changes
When, the configuration information of the sub-frame of uplink after change is carried and is broadcasted in system broadcast message.
Signaling broadcast module 31 is further used for, and when finding that MBMS special carrier relevant informations change, will change
MBMS special carriers relevant information afterwards is carried and is broadcasted in system broadcast message, the MBMS special carrier relevant information bags
Include：The cell mark that the frequency point of MBMS special carriers, the frame structure type identification of MBMS special carriers, MBMS special carriers are applicable in
One in the configuration information of the sub-frame of uplink know, dynamically introduced or any combination.
The composition of LTE UE provided in an embodiment of the present invention is given below, it mainly includes：Pass through for receiving LTE base station
The frequency point of the MBMS special carriers for the tdd mode that system broadcast message is sent, it is special according to the MBMS of pre-defined tdd mode
The frame structure of carrier wave, monitors on the frequency point and receives the module of MBMS, which is exclusively used in transmission MBMS, and should
The frame structure of carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special subframe, downlink subframe and dynamically introducing
Sub-frame of uplink form.
LTE UE further comprise：The MBMS special carriers sent for receiving LTE base station by system broadcast message
Frame structure type identification, the module for the frame structure for determining the currently used MBMS special carriers of LTE base station is identified according to the type.
LTE UE further comprise：The configuration for the sub-frame of uplink sent for receiving LTE base station by system broadcast message
Information, the module according to the configuration information to LTE base station feedback information.
LTE UE further comprise：MBMS after the change sent for receiving LTE base station by system broadcast message is special
With the relevant information of carrier wave, which includes：The frequency point of MBMS special carriers, the frame structure type mark of MBMS special carriers
In the configuration information of the sub-frame of uplink know, dynamically introduced in the cell ID that MBMS special carriers are applicable in, MBMS special carriers
One or any combination, receive MBMS according to the relevant information of the MBMS special carriers after the change or are fed back to LTE base station
The module of information.
The embodiment of the present invention also provides a kind of LTE MBMS systems, which includes：LTE bases provided in an embodiment of the present invention
Stand and LTE UE provided in an embodiment of the present invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (23)
- A kind of 1. Long Term Evolution LTE multimedia broadcast multi-broadcasting business MBMS transmission method, it is characterised in that this method includes：The pre-defined MBMS special carriers for LTE MBMS system Time Division Duplex TDD patterns, the carrier wave are exclusively used in transmitting MBMS, and the frame structure for defining the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special subframe, downlink Frame and the sub-frame of uplink dynamically introduced are formed；The frequency point of MBMS special carriers is periodically carried and is broadcasted in system broadcast message by LTE base station, and when needs When issuing MBMS, which is transmitted according to the frame structure of the MBMS special carriers of definition；When LTE base station supports the frame structure of two or more MBMS special carriers at the same time,The frequency point of MBMS special carriers is periodically carried and is broadcasted further in system broadcast message by the LTE base station Including：The frame structure type identification of MBMS special carriers is periodically carried and broadcast out in system broadcast message by LTE base station Go, so that LTE UE are according to the frame structure of the currently used MBMS special carriers of the definite LTE base station of the type mark.
- 2. according to the method described in claim 1, it is characterized in that, the LTE base station is periodically by MBMS special carriers Frequency point carries and is broadcasted further comprising in system broadcast message：MBMS special carriers are periodically applicable in by LTE base station Cell ID carry be broadcasted in system broadcast message.
- 3. according to the method described in claim 1, it is characterized in that, when LTE base station needs LTE UE feedback informations, in MBMS Sub-frame of uplink is dynamically introduced in the frame structure of special carrier, and the configuration information of sub-frame of uplink is carried in system broadcast message It is broadcasted.
- 4. according to the method described in claim 3, it is characterized in that, the configuration information of the sub-frame of uplink includes：Sub-frame of uplink Subframe position in the frame structure of MBMS special carriers, and/or appearance cycle of the sub-frame of uplink in MBMS special carriers.
- 5. according to the method described in claim 1, it is characterized in that, when LTE base station finds MBMS special carriers relevant information hair During changing, the MBMS special carriers relevant information after change is carried and is broadcasted in system broadcast message.
- 6. according to the method described in claim 5, it is characterized in that, the MBMS special carriers relevant information includes：MBMS is special The cell ID that is applicable in the frequency point of carrier wave, the frame structure type identification of MBMS special carriers, MBMS special carriers, dynamically introduce Sub-frame of uplink configuration information in one or any combination.
- A kind of 7. LTE MBMS transmissions method, it is characterised in that this method includes：LTE UE receive the frequency point for the MBMS special carriers that LTE base station is sent by system broadcast message, according to pre-defined The frame structure of MBMS special carriers, monitors on the frequency point and receives MBMS, and the frame structure of the MBMS special carriers is：Only It is made of special subframe and downlink subframe, alternatively, being made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces；The frequency point that the LTE UE receive the MBMS special carriers that LTE base station is sent by system broadcast message further comprises：LTE UE receive the frame structure type identification for the MBMS special carriers that LTE base station is sent by system broadcast message, according to The type mark selects one in the frame structure of pre-defined MBMS special carriers；And the frame structure of MBMS special carriers that the basis pre-defines, monitored on the frequency point and receive MBMS and be：Root According to the frame structure of selected MBMS special carriers, monitored on the frequency point and receive MBMS.
- 8. the method according to the description of claim 7 is characterized in that the method is further included：LTE UE receive the configuration information for the sub-frame of uplink that LTE base station is sent by system broadcast message, according to the configuration information To LTE base station feedback information.
- 9. according to the method described in claim 8, it is characterized in that, the configuration information of the sub-frame of uplink includes：Sub-frame of uplink Subframe position in the frame structure of MBMS special carriers, and/or appearance cycle of the sub-frame of uplink in MBMS special carriers.
- 10. the method according to the description of claim 7 is characterized in that the method is further included：LTE UE receive the relevant information of the MBMS special carriers after the change that LTE base station is sent by system broadcast message, should Relevant information includes：The frequency point of MBMS special carriers, the frame structure type identification of MBMS special carriers, MBMS special carriers are applicable in Cell ID, the sub-frame of uplink dynamically introduced in MBMS special carriers configuration information in one or any combination, according to The relevant informations of MBMS special carriers after the change receives MBMS or to LTE base station feedback information.
- A kind of 11. LTE MBMS systems, it is characterised in that including：LTE base station：Periodically the frequency point of the MBMS special carriers of tdd mode is carried and is broadcast out in system broadcast message Go, and when needing to issue MBMS, the MBMS, the special loads of MBMS are transmitted according to the frame structure of the MBMS special carriers of definition Ripple is exclusively used in transmission MBMS, and the frame structure of the carrier wave is：Only it is made of special subframe and downlink subframe, alternatively, by special son Frame, downlink subframe and the sub-frame of uplink composition dynamically introduced；LTE UE：The frequency point for the MBMS special carriers that LTE base station is sent by system broadcast message is received, according to fixed in advance The frame structure of the MBMS special carriers of justice, monitors on the frequency point and receives MBMS；When the LTE base station supports the frame structure of two or more MBMS special carriers at the same time,The LTE base station is further used for, and periodically carries the frame structure type identification of MBMS special carriers wide in system Broadcast in message and be broadcasted；The LTE UE are further used for, when receiving the frame structure type identification of the MBMS special carriers, according to such Type mark determines the frame structure of the currently used MBMS special carriers of LTE base station.
- 12. system according to claim 11, it is characterised in that the LTE base station is further used for, and periodically will The cell ID that MBMS special carriers are applicable in is carried and is broadcasted in system broadcast message.
- 13. system according to claim 11, it is characterised in that the LTE base station is further used for, when needing LTE UE During feedback information, sub-frame of uplink is dynamically introduced in the frame structure of MBMS special carriers, and the configuration information of sub-frame of uplink is taken Band is broadcasted in system broadcast message.
- 14. system according to claim 13, it is characterised in that the LTE base station is further used for, when discovery dynamic is drawn When the configuration information of the sub-frame of uplink entered changes, the configuration information of the sub-frame of uplink dynamically introduced after change is broadcast out Go.
- 15. system according to claim 11, it is characterised in that the LTE base station is further used for, when discovery MBMS is special When being changed with carrier wave relevant information, the MBMS special carriers relevant information after change is carried wide in system broadcast message Broadcast is gone, and the MBMS special carriers relevant information includes：The frequency point of MBMS special carriers, the frame structure class of MBMS special carriers One in the cell ID that type mark, MBMS special carriers are applicable in or any combination.
- A kind of 16. LTE base station, it is characterised in that including：Signaling broadcast module：Periodically the frequency point of the MBMS special carriers of tdd mode is carried wide in system broadcast message Broadcast is gone；MBMS transmission module：When needing to issue MBMS, transmitted according to the frame structure of the MBMS special carriers of the tdd mode of definition The MBMS, the MBMS special carriers are exclusively used in transmission MBMS, and the frame structure of the carrier wave is：Only by special subframe and downlink Frame is formed, alternatively, being made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces；When the LTE base station supports the frame structure of two or more MBMS special carriers at the same time,The signaling broadcast module is further used for, and is being by the frame structure type identification carrying of MBMS special carriers periodically It is broadcasted in system broadcast message.
- 17. base station according to claim 16, it is characterised in that the signaling broadcast module is further used for, periodically The cell ID that MBMS special carriers are applicable in is carried and is broadcasted in system broadcast message by ground.
- 18. base station according to claim 16, it is characterised in that the signaling broadcast module is further used for, and works as needs During LTE UE feedback informations, sub-frame of uplink is dynamically introduced in the frame structure of MBMS special carriers, and by the configuration of sub-frame of uplink Information is broadcasted.
- 19. base station according to claim 18, it is characterised in that the signaling broadcast module is further used for, and works as discovery When the configuration information of the sub-frame of uplink dynamically introduced changes, by the configuration information of the sub-frame of uplink dynamically introduced after change It is broadcasted.
- 20. base station according to claim 16, it is characterised in that the signaling broadcast module is further used for, and works as discovery When MBMS special carrier relevant informations change, the MBMS special carriers relevant information after change is carried and is disappeared in system broadcasts It is broadcasted in breath, the MBMS special carriers relevant information includes：Frequency point, the frame of MBMS special carriers of MBMS special carriers One in the cell ID that structure type mark, MBMS special carriers are applicable in or any combination.
- A kind of 21. LTE UE, it is characterised in that including：The TDD moulds sent for receiving LTE base station by system broadcast message The frequency point of the MBMS special carriers of formula, according to the frame structure of the MBMS special carriers of pre-defined tdd mode, in the frequency point Upper to monitor and receive the module of MBMS, the frame structure of the MBMS special carriers is：Only it is made of special subframe and downlink subframe, Alternatively, it is made of special subframe, downlink subframe and the sub-frame of uplink that dynamically introduces；The UE further comprises：The frame knot for the MBMS special carriers sent for receiving LTE base station by system broadcast message Structure type identification, the module for the frame structure for determining the currently used MBMS special carriers of LTE base station is identified according to the type.
- 22. UE according to claim 21, it is characterised in that the UE further comprises：Pass through for receiving LTE base station The configuration information for the sub-frame of uplink that system broadcast message is sent, the module according to the configuration information to LTE base station feedback information.
- 23. UE according to claim 21, it is characterised in that the UE further comprises：Pass through for receiving LTE base station The relevant information of MBMS special carriers after the change that system broadcast message is sent, the relevant information include：MBMS special carriers Frequency point, frame structure type identification, the MBMS special carriers of MBMS special carriers be applicable in cell ID, in MBMS special carriers One in the configuration information of the sub-frame of uplink dynamically introduced or any combination, according to the phase of the MBMS special carriers after the change Close information and receive MBMS or the module to LTE base station feedback information.
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| CN113784399B (en) * | 2020-06-10 | 2022-11-29 | 中国移动通信有限公司研究院 | Method and equipment for switching multicast broadcast service (MBMS) |
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