CN101873528A - Sending method and equipment as well as receiving method and equipment of multicast control channel - Google Patents
Sending method and equipment as well as receiving method and equipment of multicast control channel Download PDFInfo
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Abstract
The invention discloses sending method and equipment of a multicast control channel. The method comprises the following steps of: independently mapping MCCH (Main Control Channel) onto a corresponding transmission channel; independently mapping the transmission channel onto a corresponding physical channel; and sending the MCCH based on a set repetition period and a set revision period and notifying user equipment a subframe position where the MCCH is located as well as the repetition period and the revision period of the MCCH through broadcast information. The invention also discloses receiving method and equipment of the multicast control channel. By utilizing the invention, UE (User Equipment) can obtain combination gains of the MCCH, and the demodulation performance of the MCCH is enhanced.
Description
Technical field
The present invention relates to the communication technology, be specifically related to a kind of multicast control channel sending method and equipment, method of reseptance and equipment.
Background technology
MBMS (multimedia broadcast-multicast service) technology is used to that the user provides multimedia broadcasting and multicast services in the wireless area.At present, in LTE (Long Term Evolution) system, MBMS can carry out single cell transmission, also can carry out many cell transmission, and many cell transmission of MBMS can adopt MBSFN (multicast single-frequency network) transmission means.So-called MBSFN (multicast single-frequency network) is meant at one time and carries out synchronous transmission with same frequency in a plurality of sub-districts.Use this transmission means can save frequency resource, improve the availability of frequency spectrum.
MBMS need transmit by corresponding logic channel and transmission channel.In the LTE system, the logic channel relevant with the MBMS transmission mainly contains: BCCH (Broadcast Control Channel), MCCH (multicast control channel) and MTCH (multicast service channel).Transmission channel mainly contains: MCH (Multicast Channel) and DL-SCH (DSCH Downlink Shared Channel).Physical channel has: PBCH (Physical Broadcast Channel), PDSCH (Physical Downlink Shared Channel), PDCCH (Physical Downlink Control Channel) and PMCH (Physical Multicast Channel).Wherein, BCCH is used for the broadcast system control information, and MTCH is the point-to-multipoint down channel of network to UE (subscriber equipment) MBMS transmission data message, and MCCH is the point-to-multipoint down channel of network to the control information of UE MBMS transmission.A MCCH controls one or more MTCH, and MCCH is mapped on the MCH when MBSFN transmits, and is mapped on the D-SCH when carrying out non-MBSFN transmission.The UE that MCCH can only be received the MBMS business reads.The channel Mapping relation of MBMS as shown in Figure 1.
In the MBMS of 3G (3rd Generation, the third generation), in order to guarantee the correct reception of UE to MCCH, the MCCH channel is provided with modification cycle and repetition period, and MCCH information is constant in the modification cycle, and carries out repetition with the repetition period.UE can receive repeatedly identical MCCH information in the modification cycle like this, as long as correct the reception once just can correctly parse the MCCH loaded information.As shown in Figure 2, be modification cycle and the repetition period schematic diagram of MCCH among the MBMS of 3G.
In the MBMS of LTE, can modification cycle and repetition period be set for the MCCH channel equally.But adopt this mode, if UE does not correctly parse the MCCH loaded information in first repetition period, the MCCH information that then receives specifically will be dropped, UE can receive the MCCH that sends in the follow-up repetition period again, thereby make MCCH information not make full use of, caused the waste of resource.
Summary of the invention
The embodiment of the invention provides a kind of multicast control channel sending method and equipment on the one hand, and the merging that makes UE can obtain MCCH gains, and improves the demodulation performance of MCCH.
The embodiment of the invention provides a kind of multicast control channel method of reseptance and equipment on the other hand, and the merging that makes UE can obtain MCCH gains, and improves the demodulation performance of MCCH.
For this reason, the embodiment of the invention provides following technical scheme:
A kind of multicast control channel sending method comprises:
Independently be mapped to MCCH on the corresponding transmission channel;
Described transmission channel independently is mapped on the corresponding physical channel;
According to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.
A kind of multicast control channel method of reseptance comprises:
Read broadcast message and know MCCH place subframe, and the repetition period of MCCH and modification cycle;
Obtain the physical channel of carrying MCCH;
Each repetition period in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH;
Described MCCH data are decoded;
If can be correctly decoded, then obtain the MBMS control information according to decoded data;
If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out the HARQ mode and merge, obtain the MBMS control information.
A kind of multicast control channel transmitting apparatus comprises:
The transmission channel map unit is used for MCCH independently is mapped to corresponding transmission channel;
The physical channel map unit is used for described transmission channel independently is mapped to the corresponding physical channel;
Transmitting element is used for sending MCCH according to repetition period of setting and modification cycle;
The control channel information notification unit is used for by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.
A kind of multicast control channel receiving equipment comprises:
Reading unit is used to read broadcast message and knows MCCH place subframe, and the repetition period of MCCH and modification cycle;
Physical channel obtains the unit, is used to obtain to carry the physical channel of MCCH;
Receiving element, each repetition period that is used in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH;
Decoding unit is used for described MCCH data are decoded;
Merge cells, the MCCH data in each repetition period that is used for obtaining in this modification cycle are carried out the HARQ mode and are merged;
The business control information acquiring unit is used for when described decoding unit can be correctly decoded, and obtains the MBMS control information from described decoding unit; When described decoding unit can not be correctly decoded, obtain the MBMS control information by described merge cells.
Embodiment of the invention multicast control channel sending method and equipment, independently be mapped to MCCH on the physical channel, according to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.Correspondingly, embodiment of the invention multicast control channel method of reseptance and equipment are known MCCH place subframe by reading broadcast message, and the repetition period of MCCH and modification cycle; Obtain the physical channel of carrying MCCH; Each repetition period in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH; Described MCCH data are decoded; If can be correctly decoded, then obtain the MBMS control information according to decoded data; If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out HARQ (mixing automatic repeat requests) mode and merge, obtain the MBMS control information.Thereby the merging that can make UE can obtain MCCH gains, and improves the demodulation performance of MCCH.
Description of drawings
Fig. 1 is the channel Mapping relation of MBMS in the existing LTE system;
Fig. 2 is modification cycle and the repetition period schematic diagram of MCCH among the MBMS of existing 3G;
Fig. 3 is the flow chart of embodiment of the invention multicast control channel sending method;
Fig. 4 is the flow chart of embodiment of the invention multicast control channel method of reseptance;
Fig. 5 is the structural representation of embodiment of the invention multicast control channel transmitting apparatus;
Fig. 6 is the structural representation of embodiment of the invention multicast control channel receiving equipment.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
Embodiment of the invention multicast control channel sending method and equipment, independently be mapped to MCCH on the physical channel, according to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.Correspondingly, embodiment of the invention multicast control channel method of reseptance and equipment are known MCCH place subframe by reading broadcast message, and the repetition period of MCCH and modification cycle; Obtain the physical channel of carrying MCCH; Each repetition period in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH; Described MCCH data are decoded; If can be correctly decoded, then obtain the MBMS control information according to decoded data; If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out HARQ (mixing automatic repeat requests) mode and merge, obtain the MBMS control information.
As shown in Figure 3, be the flow chart of embodiment of the invention multicast control channel sending method, may further comprise the steps:
In embodiments of the present invention, the MCCH of different repetition periods transmissions can have identical or different redundant version number.Like this, the method for the embodiment of the invention also can further comprise: the redundant version number notice UE of the MCCH that each is sent repetition period.Specifically multiple implementation can be arranged, such as:
(1) in PDCCH, carries the redundant version number of the MCCH that each sends repetition period; Perhaps
(2) notify UE the redundant version number of the MCCH that each repetition period sends by high-level signaling;
(3) in advance the repetition period of MCCH transmission and the redundant version number of MCCH are bound.
In the LTE system, two kinds of MBMS send modes are arranged at present, a kind of is the send mode of single sub-district, another kind is the send mode of many sub-districts.No matter for which kind of MBMS send mode, when carrying out the MCCH transmission, it is set in advance modification cycle and repetition period, MCCH information is constant in the modification cycle, (but the version of each MCCH that sends can be identical, also can be different, such as modulation system and/or coded system difference), and repeat to send with the repetition period.Like this, UE can receive repeatedly identical MCCH data in the modification cycle, thus the MCCH data that UE is received according to one or many, and decoding obtains the MBMS control information of MCCH carrying.
Respectively the embodiment of the invention multicast control channel sending method under this two send modes is elaborated below.
1. single sub-district send mode
In this manner, at first need independently to be mapped to MCCH on the DL-SCH, and then independently be mapped to DS-SCH on the PDSCH, according to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notice UE MCCH place subframe position, and the repetition period of MCCH and modification cycle.
If the version difference of the MCCH that each repetition period sends in the same modification cycle then also needs to make UE can know the redundant version number of the MCCH that each repetition period sends.Specifically can adopt following several mode:
(1) carries the redundant version number of MCCH by PDCCH.
PDCCH is a Physical Downlink Control Channel, can be used for dispatching PDSCH, and PDCCH can carry different control informations, such as DCI format 1A (descending control information format 1A), DCI format 1C, DCI format 2 etc.Each DCI format has its purposes separately, can be used for carrying the control information of single current downlink data such as format 1A, and the control information of carrying is more complete, and format 1C also can be used for the control information of single current downlink data, but the control information of carrying is less.
Therefore, in embodiments of the present invention, can adopt the format 1A of PDCCH to transmit MCCH-RNTI (wireless network temporary sign), transmit the redundant version number that carries MCCH among the PDCCH at every turn.
(2) in advance the repetition period of MCCH transmission and the redundant version number of MCCH are bound
If adopt the format 1C of PDCCH to transmit MCCH-RNTI, then at this moment transmit the redundant version number that can not carry MCCH among the PDCCH at every turn.Therefore, repetition period that can be in advance MCCH be sent and the redundant version number of MCCH be bound, and that is to say, set in advance the corresponding relation of the redundant version number of repetition period that identical MCCH sends and MCCH in network side and UE side.So that UE can be known the redundant version number of MCCH in each repetition period.
2. many sub-districts send mode
In this manner, at first need MCCH independently is mapped on the MCH, and then MCH independently is mapped on the P-MCH, according to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notice UE MCCH place subframe position, and the repetition period of MCCH and modification cycle.
If the version difference of the MCCH that each repetition period sends in the same modification cycle then also needs to make UE can know the redundant version number of the MCCH that each repetition period sends.Specifically can adopt following several mode:
(1) notifies UE the redundant version number of the MCCH that each repetition period sends by high-level signaling, such as the redundant version number of in BCCH, carrying MCCH.
(2) in advance the repetition period of MCCH transmission and the redundant version number of MCCH are bound.
No matter above-mentioned which kind of MBMS send mode, embodiment of the invention multicast control channel sending method is by independently being mapped to MCCH on the corresponding transmission channel; Described transmission channel independently is mapped on the corresponding physical channel; According to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notice UE MCCH place subframe position, and the repetition period of MCCH and modification cycle.Thereby can make under the situation that UE can not be correctly decoded in MCCH receives, can carry out HARQ to the MCCH that repeatedly receives in the same modification cycle and merge, obtain the merging gain of MCCH, improve the demodulation performance of MCCH.
Corresponding to the multicast control channel sending method that the embodiment of the invention provides, the embodiment of the invention also provides a kind of multicast control channel method of reseptance.
As shown in Figure 4, be the flow chart of this multicast control channel method of reseptance, may further comprise the steps:
Step 401 reads broadcast message and knows MCCH place subframe, and the repetition period of MCCH and modification cycle;
Step 404 is decoded to described MCCH data, and judges whether and can be correctly decoded; If then execution in step 405; Otherwise, execution in step 406;
Step 405 obtains the MBMS control information according to decoded data;
Step 406 is carried out the HARQ mode with the MCCH data in each repetition period that obtains in this modification cycle and is merged, and obtains the MBMS control information.
In embodiments of the present invention, for convenience UE carries out HARQ to the MCCH data in the different repetition periods and merges, and the dedicated cache district can be set, and obtains putting it in this dedicated cache district after the MCCH data going to decode at every turn.If be correctly decoded, the MBMS control information that then decoding is obtained is submitted to high level, adopts new MCCH data to replace old MCCH data when data arrive in the next one modification cycle then; If can not be correctly decoded, then can be in this modification cycle, the MCCH The data HARQ in the multiple cycle merges with Different Weight, obtains the MBMS control information by merging.
The front is mentioned, and MCCH information is constant in the modification cycle, but the version of each MCCH that sends can be identical, also can be different.If different, then network side can be selected to make UE know the redundant version number of the MCCH of each transmission by multitude of different ways as required.Correspondingly, UE can be known the redundant version number of MCCH by following any one mode:
(1) obtains the redundant version number of the MCCH that each sends repetition period by PDCCH; Perhaps
(2) obtain the redundant version number of the MCCH that each sends repetition period by high-level signaling; Perhaps
(3), obtain the redundant version number of the MCCH of each repetition period transmission by the repetition period of binding in advance and the redundant version number of MCCH.
Like this, UE is carrying out the HARQ mode when merging to the MCCH data in each repetition period, can adopt different HARQ modes to merge to the MCCH data of different redundant version number, certainly, also can adopt identical HARQ mode to merge, specifically can select according to application need.
Be elaborated at the embodiment of the invention multicast control channel method of reseptance under two kinds of MBMS send modes in the LTE system respectively equally, below.
1. single sub-district send mode
In this manner, UE can know MCCH place subframe position by reading broadcast message, and parameters such as the repetition period of MCCH, modification cycle, knows that by the MCCH-RNTI that monitors among the PDCCH PDSCH goes up the MCCH that is of carrying.Then PDSCH is gone up the MCCH data of carrying and decode, if be correctly decoded, the MBMS control information that then decoding is obtained is submitted to high level, adopts new MCCH data to replace old MCCH data when data arrive in the next one modification cycle then; If can not be correctly decoded, then can be in this modification cycle, the MCCH The data HARQ in the multiple cycle merges with Different Weight, obtains the MBMS control information by merging.
2, many sub-districts send mode
In this manner, UE can know MCCH place subframe position by reading broadcast message, and the frequency resource position, and parameter such as repetition period of MCCH, modification cycle.UE receives the P-MCH that carries MCCH to described frequency resource position, with the MCCH data on this P-MCH be put into go in the dedicated cache district decoding, if be correctly decoded, the MBMS control information that then decoding is obtained is submitted to high level, adopts new MCCH data to replace old MCCH data when data arrive in the next one modification cycle then; If can not be correctly decoded, then can be in this modification cycle, the MCCH The data HARQ in the multiple cycle merges with Different Weight, obtains the MBMS control information by merging.
As seen, no matter above-mentioned which kind of MBMS send mode, embodiment of the invention multicast control channel method of reseptance, UE if can be correctly decoded, then obtain many MBMS control information according to decoded data after receiving the MCCH data; If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out the HARQ mode and merge, obtain the MBMS control information.Thereby can make UE make full use of the MCCH data, and obtain the merging gain of MCCH, improve the demodulation performance of MCCH.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The embodiment of the invention also provides a kind of multicast control channel transmitting apparatus, as shown in Figure 5, is the structural representation of this equipment.
In this embodiment, described equipment 500 comprises: transmission channel map unit 501, physical channel map unit 502, transmitting element 503 and control channel information notification unit 504.Wherein:
Transmission channel map unit 501 is used for MCCH independently is mapped to corresponding transmission channel;
Physical channel map unit 502 is used for described transmission channel independently is mapped to the corresponding physical channel;
Transmitting element 503 is used for sending MCCH according to repetition period of setting and modification cycle;
Control channel information notification unit 504 is used for by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.
According to the difference of MBMS send mode, described transmission channel map unit 501 specifically is used for independently being mapped to MCCH on the DL-SCH when the uni-cell MBMS send mode; When many cell MBMSs send mode, MCCH independently is mapped on the MCH.Correspondingly, described physical channel map unit 502 specifically is used for independently being mapped to DL-SCH on the PDSCH when the uni-cell MBMS send mode; At many cell MBMSs send mode, MCH independently is mapped on the P-MCH.
Utilizing the equipment of the embodiment of the invention to carry out the detailed process that multicast control channel sends can not repeat them here with reference to the description in the embodiment of the invention multicast control channel sending method of front.
Mention in the embodiment of the invention multicast control channel sending method in front, the MCCH that the different repetition periods send can have different version numbers; Correspondingly, in the equipment of the embodiment of the invention, also can further comprise following any unit:
Version information carries the unit, is used for carrying at PDCCH the redundant version number of the MCCH of each repetition period transmission; Perhaps
The version information notification unit is used for notifying by high-level signaling the redundant version number of the MCCH that each of described subscriber equipment sends repetition period; Perhaps
The binding unit is used for the repetition period of MCCH transmission and the redundant version number of MCCH are bound.
Embodiment of the invention multicast control channel transmitting apparatus is by independently being mapped to MCCH on the corresponding transmission channel; Described transmission channel independently is mapped on the corresponding physical channel; According to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notice UE MCCH place subframe position, and the repetition period of MCCH and modification cycle.Thereby can make under the situation that UE can not be correctly decoded in MCCH receives, can carry out HARQ to the MCCH that repeatedly receives in the same modification cycle and merge, obtain the merging gain of MCCH, improve the demodulation performance of MCCH.
Correspondingly, the embodiment of the invention also provides a kind of multicast control channel receiving equipment, as shown in Figure 6, is the structural representation of this equipment.
In this embodiment, described equipment 600 comprises: reading unit 601,
Reading unit 601 is used to read broadcast message and knows MCCH place subframe, and the repetition period of MCCH and modification cycle;
Physical channel obtains unit 602, is used to obtain to carry the physical channel of MCCH;
Receiving element 603, each repetition period that is used in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH;
Decoding unit 604 is used for described MCCH data are decoded;
Merge cells 605, the MCCH data in each repetition period that is used for obtaining in this modification cycle are carried out the HARQ mode and are merged;
Business control information acquiring unit 606 is used for when described decoding unit can be correctly decoded, and obtains the MBMS control information from described decoding unit; When described decoding unit can not be correctly decoded, obtain the MBMS control information by described merge cells.
According to the difference of MBMS send mode, described physical channel obtains unit 602, specifically is used for when the uni-cell MBMS send mode, by monitoring the PDSCH of the MCCH-RNTI acquisition carrying MCCH among the PDCCH; When many cell MBMSs send mode, know frequency resource position, MCCH place by broadcast message, and on described frequency resource position, obtain the P-MCH of carrying MCCH.
If the MCCH that the different repetition periods send has different version numbers, then described equipment 600 also can further comprise: version information acquiring unit (not shown) is used to obtain the redundant version number of the MCCH that each repetition period sends.
Equally, according to the difference of MBMS send mode, described version information acquiring unit obtains the mode of the redundant version number of the MCCH that each sends repetition period also can be different.Specifically can be used for obtaining the redundant version number of the MCCH of each repetition period transmission by PDCCH; Perhaps obtain the redundant version number of the MCCH of each repetition period transmission by high-level signaling; Perhaps, obtain the redundant version number of the MCCH of each repetition period transmission by the repetition period of binding in advance and the redundant version number of MCCH.
Utilizing the equipment of the embodiment of the invention to carry out the detailed process that multicast control channel receives can not repeat them here with reference to the description in the embodiment of the invention multicast control channel method of reseptance of front.
Embodiment of the invention multicast control channel receiving equipment after receiving the MCCH data, if can be correctly decoded, then obtains many MBMS control information according to decoded data; If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out the HARQ mode and merge, obtain the MBMS control information.Thereby can make full use of the MCCH data, and obtain the merging gain of MCCH, improve the demodulation performance of MCCH.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (19)
1. a multicast control channel sending method is characterized in that, comprising:
Independently be mapped to MCCH on the corresponding transmission channel;
Described transmission channel independently is mapped on the corresponding physical channel;
According to repetition period of setting and modification cycle transmission MCCH, and by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.
2. method according to claim 1 is characterized in that, described MCCH independently is mapped on the corresponding transmission channel comprises:
For the uni-cell MBMS send mode, independently be mapped to MCCH on the DL-SCH;
For many cell MBMSs send mode, MCCH independently is mapped on the MCH.
3. method according to claim 2 is characterized in that, described described transmission channel independently is mapped on the corresponding physical channel comprises:
For the uni-cell MBMS send mode, independently be mapped to DL-SCH on the PDSCH;
For many cell MBMSs send mode, MCH independently is mapped on the P-MCH.
4. according to each described method of claim 1 to 3, it is characterized in that the MCCH that the different repetition periods send has different version numbers.
5. method according to claim 4 is characterized in that, also comprises:
In PDCCH, carry the redundant version number of the MCCH of each repetition period transmission; Perhaps
Notify the redundant version number of the described subscriber equipment MCCH that each repetition period sends by high-level signaling; Perhaps
In advance the repetition period of MCCH transmission and the redundant version number of MCCH are bound.
6. a multicast control channel method of reseptance is characterized in that, comprising:
Read broadcast message and know MCCH place subframe, and the repetition period of MCCH and modification cycle;
Obtain the physical channel of carrying MCCH;
Each repetition period in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH;
Described MCCH data are decoded;
If can be correctly decoded, then obtain the MBMS control information according to decoded data;
If can not be correctly decoded, then the MCCH data in each repetition period that obtains in this modification cycle are carried out the HARQ mode and merge, obtain the MBMS control information.
7. method according to claim 6 is characterized in that, the physical channel of described acquisition carrying MCCH comprises:
For the uni-cell MBMS send mode, by monitoring the PDSCH of the MCCH-RNTI acquisition carrying MCCH among the PDCCH;
For many cell MBMSs send mode, know frequency resource position, MCCH place by broadcast message, and on described frequency resource position, obtain the P-MCH of carrying MCCH.
8. according to claim 6 or 7 described methods, it is characterized in that the MCCH that the different repetition periods send has different version numbers.
9. method according to claim 8 is characterized in that, also comprises:
Obtain the redundant version number of the MCCH of each repetition period transmission by PDCCH; Perhaps
Obtain the redundant version number of the MCCH of each repetition period transmission by high-level signaling; Perhaps
By the repetition period of binding in advance and the redundant version number of MCCH, obtain the redundant version number of the MCCH of each repetition period transmission.
10. method according to claim 8 is characterized in that, describedly MCCH data in each repetition period that obtains in this modification cycle are carried out the HARQ mode merges and comprises:
The different HARQ mode of MCCH The data of different redundant version number merges.
11. according to claim 6 or 7 described methods, it is characterized in that, also comprise:
Dedicated cache is set stores described MCCH data.
12. a multicast control channel transmitting apparatus is characterized in that, comprising:
The transmission channel map unit is used for MCCH independently is mapped to corresponding transmission channel;
The physical channel map unit is used for described transmission channel independently is mapped to the corresponding physical channel;
Transmitting element is used for sending MCCH according to repetition period of setting and modification cycle;
The control channel information notification unit is used for by broadcast message notifying user equipment MCCH place subframe position, and the repetition period of MCCH and modification cycle.
13. equipment according to claim 12 is characterized in that,
Described transmission channel map unit specifically is used for independently being mapped to MCCH on the DL-SCH when the uni-cell MBMS send mode; When many cell MBMSs send mode, MCCH independently is mapped on the MCH.
14. equipment according to claim 13 is characterized in that,
Described physical channel map unit specifically is used for independently being mapped to DL-SCH on the PDSCH when the uni-cell MBMS send mode; At many cell MBMSs send mode, MCH independently is mapped on the P-MCH.
15., it is characterized in that the MCCH that the different repetition periods send has different version numbers according to each described equipment of claim 12 to 14; Described equipment also comprises:
Version information carries the unit, is used for carrying at PDCCH the redundant version number of the MCCH of each repetition period transmission; Perhaps
The version information notification unit is used for notifying by high-level signaling the redundant version number of the MCCH that each of described subscriber equipment sends repetition period; Perhaps
The binding unit is used for the repetition period of MCCH transmission and the redundant version number of MCCH are bound.
16. a multicast control channel receiving equipment is characterized in that, comprising:
Reading unit is used to read broadcast message and knows MCCH place subframe, and the repetition period of MCCH and modification cycle;
Physical channel obtains the unit, is used to obtain to carry the physical channel of MCCH;
Receiving element, each repetition period that is used in the described modification cycle receives the physical channel of MCCH, and obtains the MCCH data of described MCCH place subframe in this repetition period from the physical channel of described MCCH;
Decoding unit is used for described MCCH data are decoded;
Merge cells, the MCCH data in each repetition period that is used for obtaining in this modification cycle are carried out the HARQ mode and are merged;
The business control information acquiring unit is used for when described decoding unit can be correctly decoded, and obtains the MBMS control information from described decoding unit; When described decoding unit can not be correctly decoded, obtain the MBMS control information by described merge cells.
17. equipment according to claim 16 is characterized in that,
Described physical channel obtains the unit, specifically is used for when the uni-cell MBMS send mode, by monitoring the PDSCH of the MCCH-RNTI acquisition carrying MCCH among the PDCCH; When many cell MBMSs send mode, know frequency resource position, MCCH place by broadcast message, and on described frequency resource position, obtain the P-MCH of carrying MCCH.
18., it is characterized in that the MCCH that the different repetition periods send has different version numbers according to claim 16 or 17 described equipment; Described equipment also comprises:
The version information acquiring unit is used to obtain the redundant version number of the MCCH that each repetition period sends.
19. equipment according to claim 18 is characterized in that,
Described version information acquiring unit specifically is used for obtaining by PDCCH the redundant version number of the MCCH that each sends repetition period; Perhaps obtain the redundant version number of the MCCH of each repetition period transmission by high-level signaling; Perhaps, obtain the redundant version number of the MCCH of each repetition period transmission by the repetition period of binding in advance and the redundant version number of MCCH.
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