CN109565645A - Multicast service transmission method, terminal, base station and communication system - Google Patents

Abstract

The embodiment of the present invention provides a kind of multicast service transmission method, terminal, base station and communication system, this method comprises: receiving the multi-cast business data that equipment of the core network is sent；The transmission for obtaining multicast service indicates information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；The transmission is sent to terminal and indicates information, and indicates information to multi-cast business data described in the terminal transmission according to the transmission.Multicast service transmission method, terminal, base station and communication system provided in an embodiment of the present invention, it can be when the data volume of multi-cast business data be larger, by increasing the number of transmissions of multi-cast business data, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Description

Multicast service transmission method, terminal, base station and communication system Technical field

The present embodiments relate to the communication technology more particularly to a kind of multicast service transmission method, terminal, base station and communication systems.

Background technique

It is deployed in long term evolution (Long Term Evolution, referred to as: LTE) in system based on cellular narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) be all things on earth internet a branch, have the characteristics that covering is wide, connection is more, rate is low, at low cost, power consumption is few, framework is excellent etc..Therefore, NB-IoT can provide support for the very low magnanimity internet-of-things terminal of handling capacity, cost, energy consumption.Terminal mentioned here can be for example intelligent electric meter, intellectual water meter, intelligent parking equipment etc..

In the prior art, base station in NB-IoT can (Single Cell Point to Multiple point-to-multipoint by single cell list, multicasting technology referred to as: SC-PTM), the multi-cast business data that equipment of the core network is issued are sent to all terminals in cell coverage area.Wherein, the corresponding multicast service of above-mentioned multi-cast business data can be for example the emergency notice business etc. in software upgrading business, region.When specific implementation, above-mentioned multi-cast business data can be mapped on multiple transmission blocks first according to the size of transmission block, then successively transmit each transmission block to all terminals of cell by base station, to achieve the purpose that the terminal transmission multi-cast business data.

However, when the data volume of above-mentioned multi-cast business data is larger, the quantity of the corresponding transmission block of above-mentioned multi-cast business data also can be more, so that base station is by way of successively transmitting each transmission block to all terminals of cell, come when transmitting the multi-cast business data, the probability that terminal is properly received the multi-cast business data is lower, therefore, how base station is to the above-mentioned multi-cast business data of terminal transmission, is a urgent problem to be solved to enhance the robustness of multicast service.

Summary of the invention

The embodiment of the present invention provides a kind of multicast service transmission method, terminal, base station and communication system, for enhancing the robustness of multicast service.

In a first aspect, the embodiment of the present invention provides a kind of multicast service transmission method, comprising: receive core The multi-cast business data that heart net equipment is sent；The transmission for obtaining multicast service indicates information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；The transmission is sent to terminal and indicates information, and indicates information to multi-cast business data described in the terminal transmission according to the transmission.

The multicast service transmission method provided by first aspect, base station is after the multi-cast business data for receiving equipment of the core network transmission, the available transmission mode including the multi-cast business data in base station, and the transmission of the number of transmissions indicates information, so that base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by base station simultaneously, so that terminal can indicate information according to the transmission, the multi-cast business data that base station is repeatedly sent correctly is received.Therefore, multicast service transmission method provided in an embodiment of the present invention, can be when the data volume of multi-cast business data be larger, through the number of transmissions for increasing multi-cast business data, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Optionally, in a kind of possible embodiment of first aspect, above-mentioned multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity of multi-cast business data unit included by the multi-cast business data is determined by base station.

Optionally, in a kind of possible embodiment of first aspect, the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be to repeat unit of transfer to multi-cast business data described in the terminal transmission；It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising: to be to repeat unit of transfer with the total data of the multi-cast business data, Xiang Suoshu terminal repeats to transmit the multi-cast business data according to the number of transmissions.

Optionally, in a kind of possible embodiment of first aspect, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be to repeat unit of transfer to multi-cast business data described in the terminal transmission；It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising: to be to repeat unit of transfer with the multi-cast business data unit, Xiang Suoshu terminal repeats to transmit the multi-cast business data according to the number of transmissions.

Optionally, in a kind of possible embodiment of first aspect, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be to repeat unit of transfer to multi-cast business data described in the terminal transmission；It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising: to be to repeat unit of transfer, Xiang Suoshu with the multi-cast business data packet according to the number of transmissions Terminal repeats to transmit the multi-cast business data.

Optionally, in a kind of possible embodiment of first aspect, the transmission for obtaining the multicast service indicates information, it include: the type of service according to the multi-cast business data, and, mapping relations between preset type of service and transmission instruction information determine the transmission instruction information of the multicast service.

Optionally, in a kind of possible embodiment of first aspect, the transmission for obtaining the multicast service indicates information, comprising: receives the transmission instruction information for the multicast service that the equipment of the core network is sent.

Optionally, in a kind of possible embodiment of first aspect, the method also includes: Xiang Suoshu terminal sends multicast service notice information, and the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data to the terminal.

The multicast service transmission method provided by the possible embodiment, base station can send multicast service notice information to terminal, so that terminal is after receiving the multicast service notice information, it can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Optionally, in a kind of possible embodiment of first aspect, it is described indicate that information sends the multi-cast business data to the terminal according to the transmission before, further include: according to the number of the multi-cast business data packet, the first instruction information is generated for the multi-cast business data packet of the multi-cast business data, wherein, the first instruction information is used to indicate the mark of the multi-cast business data packet to the terminal；It is described to indicate that information sends the multi-cast business data to the terminal according to the transmission, comprising: to indicate that information, Xiang Suoshu terminal send multi-cast business data packet indicated by the first instruction information and the first instruction information according to the transmission.

The multicast service transmission method provided by the possible embodiment, base station can generate the first instruction information of the mark that one is used to indicate the multi-cast business data packet for each multi-cast business data packet, and when sending multi-cast business data to terminal according to transmission instruction information, the first instruction information is sent to terminal with multi-cast business data packet together, so that terminal can be according to the first instruction information, determine whether to be properly received the multi-cast business data packet, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that base station is sent, and the group has been properly received in determination When multicast business data packet identifies corresponding multi-cast business data packet, terminal can ignore the multi-cast business data packet of base station transmission, without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Second aspect, the embodiment of the present invention provide a kind of multicast service transmission method, comprising: receive the transmission that base station is sent and indicate information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；Information is indicated according to the transmission, receives the multi-cast business data of the base station transmission.

The multicast service transmission method provided by second aspect, terminal can receive the transmission instruction information sent to base station, so that terminal can correctly receive the multi-cast business data that base station is transmitted several times according to transmission instruction information to terminal.Therefore, multicast service transmission method provided in an embodiment of the present invention, can be when the data volume of multi-cast business data be larger, through the number of transmissions for increasing multi-cast business data, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Optionally, in a kind of possible embodiment of second aspect, the multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity for the multi-cast business data unit that the multi-cast business data includes is determined by the base station.

Optionally, in a kind of possible embodiment of second aspect, the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be the multi-cast business data for repeating unit of transfer and receiving base station transmission；It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, include: according to the number of transmissions, be to repeat unit of transfer with the total data of the multi-cast business data, receives the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of second aspect, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be the multi-cast business data for repeating unit of transfer and receiving base station transmission；It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising: be to repeat unit of transfer with the multi-cast business data unit according to the number of transmissions, receive the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of second aspect, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be the multi-cast business data for repeating unit of transfer and receiving base station transmission；It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising: be that repetition transmission is single with the multi-cast business data packet according to the number of transmissions Position receives the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of second aspect, the method also includes: the multicast service notice information of the base station transmission is received, the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data.

The multicast service transmission method provided by the possible embodiment, terminal can receive the multicast service notice information sent to base station, so that terminal can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Further, in a kind of possible embodiment of second aspect, it is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, it include: that information is indicated according to the transmission, receive the first instruction information that the base station is sent, wherein the first instruction information is used to indicate the mark of the multi-cast business data packet；The first instruction information is number of the base station according to the multi-cast business data packet, is the instruction information that the multi-cast business data packet of the multi-cast business data generates；According to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received；When determination is not successfully received multi-cast business data packet indicated by the mark of the multi-cast business data packet, information is indicated according to the transmission, continues to the corresponding multi-cast business data packet of mark for the multi-cast business data packet that the base station is sent.

The multicast service transmission method provided by the possible embodiment, terminal can indicate information according to transmission, receive the first instruction information that base station is the mark for being used to indicate the multi-cast business data packet that each multi-cast business data packet generates, so that terminal can be according to the first instruction information, determine whether to be properly received the multi-cast business data packet, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that base station is sent, and when determining that being properly received the multi-cast business data packet identifies corresponding multi-cast business data packet, terminal can ignore the multi-cast business data packet of base station transmission, it is without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Further, in a kind of possible embodiment of second aspect, after the corresponding multi-cast business data packet of mark for continuing to the multi-cast business data packet that the base station is sent, further include: in the corresponding multi-cast business data packet of the determining mark for being properly received the multi-cast business data packet, record the mark of the multi-cast business data packet.

The multicast service transmission method provided by the possible embodiment, terminal can be after determining the corresponding multi-cast business data packet of mark of multi-cast business data packet of successful reception base station transmission, record the mark of the multi-cast business data packet, so that terminal is after receiving the first instruction information that base station is the mark for being used to indicate the multi-cast business data packet that each multi-cast business data packet generates, the mark for the successful multi-cast business data packet of reception that can be recorded according to it, and, the mark of multi-cast business data packet in the first instruction information, determine whether to be properly received multi-cast business data packet indicated by the first instruction information, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that base station is sent, and the multi-cast business data packet has been properly received in determination When identifying corresponding multi-cast business data packet, terminal can ignore the multi-cast business data packet of base station transmission, without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Optionally, in a kind of possible embodiment of second aspect, it is described to indicate information according to described first, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received, include: in the mark of multi-cast business data packet that judgement has recorded whether include the multi-cast business data packet mark, if in the mark of the multi-cast business data packet recorded not including the mark of the multi-cast business data packet, it is determined that be not successfully received the corresponding multi-cast business data packet of mark of the multi-cast business data packet.

The third aspect, the embodiment of the present invention provide a kind of base station, and the base station includes:

Receiver, for receiving the multi-cast business data of equipment of the core network transmission；Processor, the transmission for obtaining the multicast service indicate information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；Transmitter indicates information for sending the transmission to terminal, and indicates information to multi-cast business data described in the terminal transmission according to the transmission.

The base station provided by the third aspect, the receiver of base station is after the multi-cast business data for receiving equipment of the core network transmission, the available transmission mode including the multi-cast business data of the processor of base station, and the transmission of the number of transmissions indicates information, so that the transmitter of base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by the transmitter of base station simultaneously, so that terminal can indicate information according to the transmission, the multi-cast business data that base station is repeatedly sent correctly is received.Therefore, when the data volume of multi-cast business data is larger, by increasing the number of transmissions of multi-cast business data, the probability that terminal is properly received multi-cast business data can be improved, the robustness of multicast service is enhanced.

Optionally, in a kind of possible embodiment of the third aspect, the multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity of multi-cast business data unit included by the multi-cast business data is determined by the base station.

Optionally, in a kind of possible embodiment of the third aspect, in the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the total data of the multi-cast business data, Xiang Suoshu terminal repeats to transmit the multi-cast business data.

Optionally, in a kind of possible embodiment of the third aspect, in the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data unit, Xiang Suoshu terminal repeats to transmit the multi-cast business data.

Optionally, in a kind of possible embodiment of the third aspect, in the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data packet, Xiang Suoshu terminal repeats to transmit the multi-cast business data.

Optionally, in a kind of possible embodiment of the third aspect, the processor, specifically for the type of service according to the multi-cast business data, and the mapping relations between preset type of service and transmission instruction information, determine the transmission instruction information of the multicast service.

Optionally, in a kind of possible embodiment of the third aspect, the processor, the transmission that the multicast service that the equipment of the core network is sent is received specifically for controlling the receiver indicates information.

Optionally, in a kind of possible embodiment of the third aspect, the transmitter is also used to send multicast service notice information to the terminal, and the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data to the terminal.

The base station provided by the possible embodiment, the transmitter of base station can also send multicast service notice information to terminal, so that terminal is after receiving the multicast service notice information, it can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, is increased The strong robustness of multicast service.

Optionally, in a kind of possible embodiment of the third aspect, the processor, it is also used to before the transmitter indicates that information sends the multi-cast business data to the terminal according to the transmission, according to the number of the multi-cast business data packet, the first instruction information is generated for the multi-cast business data packet of the multi-cast business data, wherein the first instruction information is used to indicate the mark of the multi-cast business data packet to the terminal；The transmitter is specifically used for indicating information according to the transmission, and Xiang Suoshu terminal sends multi-cast business data packet indicated by the first instruction information and the first instruction information.

The base station provided by the possible embodiment, the processor of base station can generate the first instruction information of the mark that one is used to indicate the multi-cast business data packet for each multi-cast business data packet, so that when the transmitter of base station sends multi-cast business data to terminal according to transmission instruction information, the first instruction information can be sent to terminal with multi-cast business data packet together, so that terminal can be according to the first instruction information, determine whether to be properly received the multi-cast business data packet, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that the transmitter of base station is sent, and when determining that being properly received the multi-cast business data packet identifies corresponding multi-cast business data packet, terminal can ignore the multi-cast business data packet of base station transmission, it is without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Fourth aspect, the embodiment of the present invention provide a kind of terminal, and the terminal includes:

Receiver, the transmission for receiving base station transmission indicate information；Processor controls the multi-cast business data that the receiver receives the base station transmission for indicating information according to the transmission；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions.

The terminal provided by fourth aspect, the receiver of terminal can receive the transmission instruction information sent to base station, so that the processor of terminal, which can correctly control and receive machine, receives the multi-cast business data that base station is transmitted several times according to transmission instruction information to terminal.Therefore, when the data volume of multi-cast business data is larger, by increasing the number of transmissions of multi-cast business data, the probability that terminal is properly received multi-cast business data can be improved, the robustness of multicast service is enhanced.

Optionally, in a kind of possible embodiment of fourth aspect, the multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity for the multi-cast business data unit that the multi-cast business data includes is determined by the base station.

Optionally, in a kind of possible embodiment of fourth aspect, in the multi-cast business data Transmission mode are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the total data of the multi-cast business data, the processor, specifically for according to the number of transmissions, it is to repeat unit of transfer with the total data of the multi-cast business data, controls the receiver and receive the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of fourth aspect, in the transmission mode of the multi-cast business data are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the multi-cast business data unit, the processor, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data unit, controls the receiver and receive the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of fourth aspect, in the transmission mode of the multi-cast business data are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the multi-cast business data packet, the processor, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data packet, controls the receiver and receive the multi-cast business data that the base station repeats transmission.

Optionally, in a kind of possible embodiment of fourth aspect, the receiver, is also used to receive the multicast service notice information that the base station is sent, and the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data to the terminal.

The terminal provided by the possible embodiment, the receiver of terminal can receive the multicast service notice information sent to base station, so that the processor of terminal can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Further, in a kind of possible embodiment of fourth aspect, the processor, specifically for indicating information according to the transmission, it controls the receiver and receives the first instruction information that the base station is sent, and according to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received, when determination is not successfully received multi-cast business data packet indicated by the mark of the multi-cast business data packet, information is indicated according to the transmission, control the corresponding multi-cast business data packet of mark that the receiver continues to the multi-cast business data packet that the base station is sent；Wherein, the first instruction information is used to indicate the mark of the multi-cast business data packet；It is described First instruction information is number of the base station according to the multi-cast business data packet, is the instruction information that the multi-cast business data packet of the multi-cast business data generates.

The terminal provided by the possible embodiment, the processor of terminal can indicate information according to transmission, receive the first instruction information that base station is the mark for being used to indicate the multi-cast business data packet that each multi-cast business data packet generates, so that the processor of terminal can be according to the first instruction information, determine whether to be properly received the multi-cast business data packet, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that base station is sent, and when determining that being properly received the multi-cast business data packet identifies corresponding multi-cast business data packet, the processor of terminal can ignore the multi-cast business data packet of base station transmission, it is without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Further, in a kind of possible embodiment of fourth aspect, the processor, it is also used to after the corresponding multi-cast business data packet of mark for controlling the multi-cast business data packet that the receiver continues to the base station transmission, in the corresponding multi-cast business data packet of the determining mark for being properly received the multi-cast business data packet, the mark of the multi-cast business data packet is recorded.

The terminal provided by the possible embodiment, the processor of terminal can be after determining the corresponding multi-cast business data packet of mark of multi-cast business data packet of successful reception base station transmission, record the mark of the multi-cast business data packet, so that the processor of terminal is after the first instruction information that the machine of controlling and receiving receives that base station is the mark for being used to indicate the multi-cast business data packet that each multi-cast business data packet generates, the mark for the successful multi-cast business data packet of reception that can be recorded according to it, and, the mark of multi-cast business data packet in the first instruction information, determine whether to be properly received multi-cast business data packet indicated by the first instruction information, and when determination is not successfully received the multi-cast business data packet, the multi-cast business data packet that machine continues to base station transmission can just be controlled and received, and it is determining When being properly received the multi-cast business data packet corresponding multi-cast business data packet of mark, terminal can ignore the multi-cast business data packet of base station transmission, without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Optionally, in a kind of possible embodiment of fourth aspect, the processor, for according to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received, specifically: the processor, specifically in the mark of multi-cast business data packet that judges to have recorded whether include the multi-cast business data packet mark, and when not including the mark of the multi-cast business data packet in the mark of multi-cast business data packet that judgement has recorded, determine not at Function receives the corresponding multi-cast business data packet of mark of the multi-cast business data packet.

Terminal provided by each possible embodiment of above-mentioned fourth aspect and fourth aspect, its advantages may refer to beneficial effect brought by each possible embodiment of above-mentioned first aspect and first aspect, and details are not described herein.

5th aspect, the embodiment of the present invention provides a kind of communication system, the communication system includes: base station provided by each possible embodiment of the above-mentioned third aspect and the third aspect, and, terminal provided by each possible embodiment of above-mentioned fourth aspect and fourth aspect.

The communication system provided by the 5th aspect, base station is after the multi-cast business data for receiving equipment of the core network transmission, the available transmission mode including the multi-cast business data in base station, and the transmission of the number of transmissions indicates information, so that base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by base station simultaneously, so that terminal can indicate information according to the transmission, the multi-cast business data that base station is repeatedly sent correctly is received.Therefore, multicast service transmission method provided in an embodiment of the present invention, can be when the data volume of multi-cast business data be larger, through the number of transmissions for increasing multi-cast business data, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Multicast service transmission method provided in an embodiment of the present invention, terminal, base station and communication system, base station is after the multi-cast business data for receiving equipment of the core network transmission, the available transmission mode including the multi-cast business data in base station, and the transmission of the number of transmissions indicates information, so that base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by base station simultaneously, so that terminal can indicate information according to the transmission, correctly receive the multi-cast business data that base station is repeatedly sent.Therefore, multicast service transmission method provided in an embodiment of the present invention, can be when multi-cast business data data volume be larger, through the number of transmissions for increasing multi-cast business data, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, a brief description of the drawings needed to be used in the description of the embodiments or the prior art will be given below, apparently, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art, without any creative labor, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of Signalling exchange flow chart of multicast service transmission method provided in an embodiment of the present invention；

Fig. 2 is a kind of schematic diagram of multi-cast business data provided in an embodiment of the present invention；

Fig. 3 is the schematic diagram of another multi-cast business data provided in an embodiment of the present invention；

Fig. 4 is the schematic diagram of another multi-cast business data provided in an embodiment of the present invention；

Fig. 5 is the Signalling exchange flow chart of another multicast service transmission method provided in an embodiment of the present invention；

Fig. 6 is the Signalling exchange flow chart of another multicast service transmission method embodiment three provided in an embodiment of the present invention；

Fig. 7 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；

Fig. 8 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention；

The structural block diagram that Fig. 9 is terminal provided in an embodiment of the present invention when being mobile phone.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.

The present embodiments relate to terminal, user can be directed to, the equipment of voice and/or data connectivity is provided, handheld device with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network (Radio Access Network, RAN it) is communicated with one or more core net, wireless terminal can be mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, such as, can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.Such as, personal communication service (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, wireless local loop (WLL, Wireless Local Loop) it stands, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Wireless terminal is referred to as system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), Terminal in user equipment (User Device) or user equipment (User Equipment) embodiment of the present invention can also be intelligent electric meter, intellectual water meter etc. in NB-IoT.

The present embodiments relate to base station, can be and refer to the accession in net in the sky on interface by the equipment of one or more sectors and wireless terminal communications.The air frame that base station can be used for receive mutually is converted with IP grouping, as the router between wireless terminal and the rest part of access net, wherein the rest part for accessing net may include Internet protocol (IP) network.Attribute management of the base station also tunable to air interface.Such as, base station can be the base station (BTS in GSM or CDMA, Base Transceiver Station), it is also possible to the base station (NodeB) in WCDMA, it can also be evolved base station (NodeB or the eNB or e-NodeB in LTE, evolutional Node B), the embodiment of the present invention does not limit.

Multicast service transmission method provided in an embodiment of the present invention can be adapted for base station and terminal in the NB-IoT being deployed in any communication system.Wherein, communication mentioned here is such as can be 2G communication system, 3G communication system, LTE communication system, 5G communication system.

By taking the NB-IoT being deployed in LTE system as an example, equipment of the core network is in multi-cast business data a certain by each terminal multicast of the base station into cell, the business datum first can be split into multiple Packet Data Convergence Protocol (Packet Data Convergence Protocol in network layer by base station, referred to as: PDCP) service data unit (Service Data Unit, referred to as: SDU) wrap, then according to transmission block (Transport Block, size referred to as: TB), each PDCP SDU packet is mapped to multiple TB in physical layer, so that base station can be in physical layer, pass through interested to multi-cast business data into cell all terminals successively each TB of multicast Mode, to the terminal multicast multi-cast business data.

In the prior art, the data volume that the maximum PDCP SDU packet that base station is supported can carry is 1.5kB, and the maximum TB supported for the base station NB-IoT is 680 bits.If the data volume of base station to a certain multi-cast business data of terminal multicast is larger, by taking 200kB as an example, at this point, base station splits multi-cast business data even with maximum PDCP SDU packet, and each PDCP SDU packet is mapped with maximum TB, each PDCP SDU packet can be still mapped on about 20 TB.But, base station with each PDCP SDU from 20 TB to terminal transmission software upgrading business when, the wrong probability about 87% of at least one solution in 20 TB received by terminal, therefore, for terminal, the probability of PDCP SDU packet reception failure is larger, causes the probability of multi-cast business data reception failure larger.Therefore, how base station repeats to transmit above-mentioned multi-cast business data to terminal in multi-cast business data above-mentioned to terminal transmission, so that terminal can be properly received multi-cast business data, it is a urgent problem to be solved.

Multicast service transmission method provided in an embodiment of the present invention, it is intended to solve in the prior art when multi-cast business data data volume is larger, how base station is to terminal transmission multi-cast business data, the technical issues of robustness to enhance multicast service.

Following application documents are by taking the base station of NB-IoT being deployed in LTE system and terminal as an example, to be illustrated to multicast service transmission method provided in an embodiment of the present invention, but, it will be understood by those skilled in the art that, multicast service transmission method involved in the embodiment of the present invention, including but not limited to use above scene and equipment can be using multicast service transmission methods provided by the embodiment of the present invention as long as being related to the scene and equipment of transport multicast business datum.

Technical solution of the present invention is described in detail with specifically embodiment below.These specific embodiments can be combined with each other below, and the same or similar concept or process may be repeated no more in some embodiments.

Fig. 1 is a kind of Signalling exchange flow chart of multicast service transmission method provided in an embodiment of the present invention.What is involved is base stations for the present embodiment one according to the transmission of acquired multicast service instruction information, to the detailed process of terminal transmission multi-cast business data.As shown in Figure 1, this method comprises:

S101, base station receive the multi-cast business data that equipment of the core network is sent.

Specifically, base station can receive the multi-cast business data of equipment of the core network transmission when equipment of the core network needs a certain business of each terminal transmission by base station into cell coverage area.Wherein, above-mentioned multi-cast business data can be the biggish multi-cast business data of data volume, such as can be software upgrading business, emergency notice business etc..In the present embodiment, above-mentioned described equipment of the core network for example can be application server, core network server gateway, mobility management entity etc..

S102, base station obtain the transmission instruction information of the multicast service.

Specifically, above-mentioned base station is after the multi-cast business data for receiving equipment of the core network transmission, base station can obtain the transmission mode including the multi-cast business data, and, the transmission of the number of transmissions indicates information.Wherein, the transmission mode of above-mentioned multi-cast business data is for indicating base station repeats to transmit above-mentioned multi-cast business data to terminal using which kind of repetition unit of transfer.The unit of transfer mentioned here that repeats for example can be transmission block (Transport Block, abbreviation TB), it is also possible to entire multi-cast business data (Multicast Session), it is also possible to the segmentation (Segment) that multiple TB are cascaded into, it can also be two kinds of any of the above of combination, or the combination of all three, it can specifically be arranged according to demand.

The number of transmissions of above-mentioned multi-cast business data for indicate base station on transport channels by it is each repeat unit of transfer to terminal transmission several times.Transmission channel mentioned here can for example pass for single cell multicast service Defeated channel (Single Cell-Multicast Transport Channel, referred to as: SC-MTCH).

It should be noted that the present embodiment does not limit the mode that base station obtains the transmission instruction information of multicast service.Optionally, if the transmission instruction information of above-mentioned multicast service can be determined by base station, above-mentioned base station can indicate the mapping relations between information according to preset type of service and transmission, and, the type of service of the multi-cast business data determines the transmission instruction information of the multicast service.

Above-mentioned base station according to the relevant information of multi-cast business data, can also obtain the transmission instruction information of the multicast service.Relevant information mentioned here can be channel condition, the covering grade distribution of user etc. of terminal involved in the data volume size of multi-cast business data, multi-cast business data.Such as: if the channel condition of terminal involved in multi-cast business data is preferable, the covering grade of user is mainly distributed in preferable covering grade, then the value of the number of transmissions in the transmission instruction information of multicast service is smaller.If the channel condition of terminal involved in multi-cast business data is poor, the covering grade of user is mainly distributed in poor covering grade, then the value of the number of transmissions in the transmission instruction information of multicast service is larger.When specific implementation, base station can according to the channel condition and the number of transmissions in history multi-cast business data statistical data and/or history multi-cast business data empirical data, and/or, the statistical data of covering grade and the number of transmissions determines.If the data volume of above-mentioned multi-cast business data is smaller, the repetition unit of transfer in the transmission instruction information of multicast service can be the lesser unit of transfer of a data volume；If the data volume of multi-cast business data is larger, the repetition unit of transfer in the transmission instruction information of multicast service can be the biggish unit of transfer of a data volume.Optionally, if the channel condition of terminal involved in multi-cast business data is preferable, the covering grade of user is mainly distributed in preferable covering grade, then the repetition unit of transfer in the transmission instruction information of multicast service can be the lesser unit of transfer of a data volume；If the channel condition of terminal involved in multi-cast business data is poor, the covering grade of user is mainly distributed in poor covering grade, then the repetition unit of transfer in the transmission instruction information of multicast service can be the biggish unit of transfer of a data volume.

Optionally, if the transmission instruction information of above-mentioned multicast service can be determined by equipment of the core network, above-mentioned base station can indicate information by receiving the transmission for the multicast service that equipment of the core network is sent, come the transmission instruction information etc. for obtaining the multicast service.

S103, base station send transmission instruction information to terminal.

Specifically, base station is indicated in the transmission for getting the multicast service after information, base station can send transmission instruction information to the terminal for receiving the multi-cast business data, so that terminal indicates that information knows that base station will send the multi-cast business data to terminal using which kind of repetition unit of transfer by the transmission, and base station is when repeating to transmit each repetition unit of transfer, it will transmission is several times.

Wherein, the present embodiment does not limit the mode that above-mentioned base station sends transmission instruction information to terminal.Optionally, which can be indicated that information is individually sent to terminal by above-mentioned base station, which can also being indicated to, information carrying is sent to terminal etc. in control channel.Control channel mentioned here for example can be multicast service control channel (Single Cell-Multicast Control Channel, referred to as: SC-MCCH), it can also be Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as: PDCCH), it can also be system information block (System Information Block, referred to as: SIB).

For above-mentioned transmission instruction information carrying is sent to terminal in SC-MCCH, when specific implementation, the transmission can be indicated that information carries in the MTCH list on SC-MCCH and be sent to terminal by above-mentioned base station, wherein the MTCH list for carrying transmission instruction information for example can be such that

Wherein, the repetitionfactor in above-mentioned high-level signaling is the transmission time transmitted in instruction information Number.The value of the number of transmissions can be for example the positive integer between 1 to 8.

Wherein, repetitionmode in above-mentioned high-level signaling is the repetition unit of transfer transmitted in instruction information, illustratively, when the value of repetitionmode is 1, indicate that repeating unit of transfer is TB, when the value of repetitionmode is 2, indicate that repeating unit of transfer is entire multi-cast business data data (Multicast Session), when the value of repetitionmode is 3, indicate that repeating unit of transfer is the segmentation (Segment) that multiple TB are cascaded into.

Wherein, the mbmsSessionInfo-r13 in above-mentioned high-level signaling indicates the mark of the multi-cast business data transmitted.G-RNTI-r13 in above-mentioned high-level signaling indicates that physical layer is used to scramble the RNTI mark of multi-cast business data (SC-MTCH).Sc-mtch-schedulingInfo-r13 in above-mentioned high-level signaling indicates relevant discontinuous reception (Discontinuous Reception, the abbreviation DRX) information of multi-cast business data.Sc-mtch-neighbourCell-r13 in above-mentioned high-level signaling is indicated just in the adjacent area of transport multicast business datum.

Optionally, it may include two repetitionfactor in above-mentioned MTCH list, one of them is used to indicate the number of transmissions in the transmission instruction information of multicast service of the present invention, another is used to indicate the number etc. that physical layer transmission block in the prior art repeats transmission.

Optionally, in another implementation of the invention, all multi-cast business datas (i.e. all MTCH) indicated by above-mentioned SC-MCCH, identical transmission instruction information can be shared, that is, the repetition transmission mode and iterative transfer times of multi-cast business data all corresponding to SC-MCCH are the same.In this case, the MTCH list in SC-MCCH for example can be such that

Wherein, meaning represented by each feature in above-mentioned code specifically may refer to above-mentioned explanation.

Optionally, it may include two repetitionfactor in above-mentioned MCCH list, one of them is used to indicate the number of transmissions in the transmission instruction information of multicast service of the present invention, another is used to indicate the number etc. that physical layer transmission block in the prior art repeats transmission.

For above-mentioned transmission instruction information carrying is sent to terminal in SIB, when specific implementation, which for example be can be such that

Optionally, two repetitionfactor be may include in above-mentioned SIB, one of them is used to indicate the number of transmissions of multi-cast business data, another is used to indicate the number that physical layer transmission block repeats transmission.

By taking the repetition factor carrying indicated the transmission in information is sent to terminal in PDCCH as an example, when specific implementation, it is medium in the Downlink Control Information (Downlink Control Information, referred to as: DCI) of PDCCH that the transmission can be indicated that the repetition factor in information is carried by above-mentioned base station.Repetition factor includes two kinds of repetition factors above-mentioned, the i.e. repetition factor of the repetition factor of multi-cast business data rank and physical transport block rank herein.

S104, terminal receive transmission instruction information.

S105, base station indicate information to terminal transmission multi-cast business data according to the transmission.

Specifically, after the transmission that base station obtains the multicast service indicates information, base station can indicate the number of transmissions included in information according to above-mentioned transmission, it is repeated to transmit the multi-cast business data to terminal according to the repetition unit of transfer of multi-cast business data transmission mode meaning, that is base station is repeated in each repetition unit of transfer of transmission to terminal according to the number of transmissions.Wherein, when according to the number of transmissions, transmitting each repetition unit of transfer every time, included data volume and the TB quantity of data volume mapping etc. are all the same in the repetition unit of transfer for base station, are the same repetition units of transfer with ensure base station repetition transmission.

Specifically, when base station transport multicast business datum, the radio resource link of the transmitter terminal of base station controls (RLC, Radio Link Control) a radio resource link control service data unit (SDU, Service Data Unit) is repeated that be transferred to lower layer one or many by entity.Lower layer can be the media access control layer (MAC, Medium Access Control) in LTE protocol herein；The number of transmission is repeated as previously mentioned, the parameter that can be controlled in information instruction or system message (SIB) by physical layer descending indicates.One radio resource link control service data unit (RLC SDU) is processed into the protocol Data Unit (UMD PDU, Unacknowledged Mode Data Protocol Data Unit) of unacknowledged mode data by the radio resource link control entity of the transmitter terminal of base station as follows:

Step 1: radio resource link controls (RLC) entity and is segmented and/or reassembles into one or more UMD PDU for RLC SDUs, so that the size of the RLC PDU for being sized for media access control layer instruction of each UMD PDU.

Step 2:RLC entity adds the corresponding packet header RLC on each UMD PDU.

By above step, one or more radio resource link control service data units (RLC SDU) are processed into one or more radio resource Link Control Protocol Data unit (RLC by RLC entity PDU).It in some embodiments, can be by above-mentioned steps reversed order when RLC entity handles RLC SDU.

When a RLC SDU needs to retransmit, the segmentation/the RLC SDU is segmented by recombination form/when RLC is just passed according to the RLC SDU reassembles into one or more UMD PDU.

When each new UMD PDU is transferred to media access control layer, transmitter RLC entity needs sequentially to add serial number to these UMD PDU, and specific mode of operation is as follows:

Step 1: the sequence number (SN, Sequence Number) that the UMD PDU is arranged is parameter VT (US), and parameter VT (US) adds one；

Step 2: storing the value of each the corresponding sequence number of UMD PDU and corresponding parameter VT (US)；

When RLC entity repeats a UMD PDU to be transferred to media access control layer, transmitter RLC entity needs to operate as follows:

RLC entity sets the sequence number (SN, Sequence Number) of UMD PDU to parameter VT (US), and parameter VT (US) plus one.The corresponding sequence number of transmitter storage before the sequence number is equal to.

Wherein for the first biography of each RLC SDU (s) and re-transmission, the segmentation of the RLC SDU and/or recombination form are consistent, the sequence number of each corresponding UMD PDU for just passing and retransmitting is consistent.

S106, terminal indicate information according to the transmission, receive the multi-cast business data of base station transmission.

Specifically, terminal is after receiving the transmission instruction information of base station transmission, it can be when base station be to the terminal transmission multi-cast business data, according to the number of transmissions included by transmission instruction information, and signified repetition unit of transfer in transmission mode, the case where being properly received the multi-cast business data that transmission is repeated several times in base station, the multi-cast business data that base station repeats transmission being considered new multi-cast business data to avoid terminal.

Multicast service transmission method provided in an embodiment of the present invention, base station is after the multi-cast business data for receiving equipment of the core network transmission, the available transmission mode including the multi-cast business data in base station, and the transmission of the number of transmissions indicates information, so that base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by base station simultaneously, so that terminal can indicate information according to the transmission, the multi-cast business data that base station is repeatedly sent correctly is received.Therefore, multicast service transmission method provided in an embodiment of the present invention, by increasing the number of transmissions of multi-cast business data, can improve terminal and be properly received multicast when multi-cast business data data volume is larger The probability of business datum enhances the robustness of multicast service.

Further, on the basis of the above embodiments, multi-cast business data received by above-mentioned base station may include: multiple multi-cast business data units (i.e. PDCP SDU packet), and each multi-cast business data unit includes at least one multi-cast business data packet.Wherein, above-mentioned multi-cast business data unit can split the minimum unit of multi-cast business data for base station in network layer.Multi-cast business data packet included by above-mentioned each multi-cast business data unit can be a TB, can also be a segmentation, can specifically set according to the demand of user.Here being segmented can be more than or equal to one TB, the unit of less than or equal to one PDCP SDU packet, such as: 2 cascade TB etc. can specifically be determined by base station and/or high-rise configuration.

In the present embodiment, the quantity of above-mentioned multi-cast business data unit can be determined by base station.When specific implementation, the data volume of data volume and multi-cast business data that above-mentioned base station can be carried according to preset multi-cast business data unit determines the quantity of the multi-cast business data unit of the multi-cast business data.Optionally, the mapping relations for the data volume that base station can also be carried according to preset type of service and multi-cast business data unit, and, the type of service of the multi-cast business data determines the quantity of the multi-cast business data unit of the multi-cast business data.Optionally, the data volume that base station can also be carried according to preset multi-cast business data data volume and multi-cast business data unit, and, the data volume of the multi-cast business data, the quantity for determining the multi-cast business data unit of the multi-cast business data, can specifically determine according to the demand of user.

Further, on the basis of the above embodiments, what is involved is above-mentioned base stations according to transmission instruction detailed process of the information to terminal transmission multi-cast business data for the present embodiment.In the present embodiment, above-mentioned S105 can specifically be divided into following several situations:

The first situation: the transmission mode of above-mentioned multi-cast business data are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with the total data of multi-cast business data.Then above-mentioned S105 may include: base station according to the number of transmissions, is to repeat unit of transfer with the total data of multi-cast business data, repeats transport multicast business datum to terminal.

Specifically, when above-mentioned base station is to repeat transmission mode of the unit of transfer to terminal transmission multi-cast business data according to the total data of multi-cast business data, when repeating transport multicast business datum to terminal, base station can be to repeat unit of transfer to repeat transport multicast business datum to terminal with the total data of the multi-cast business data, that is, base station is to after all data of the complete multi-cast business data of terminal transmission, all data of the multi-cast business data can just be transmitted again to terminal again, it is repeated with this, until reaching the number of transmissions.Correspondingly, terminal receive base station transmission include above-mentioned multi-cast business data transmission After the transmission instruction information of mode, terminal can be known according to the transmission mode, and terminal can be the multi-cast business data for repeating unit of transfer and receiving base station transmission with the total data of multi-cast business data.In this way, terminal is indicating information according to transmission, when receiving the multi-cast business data of base station transmission, so that it may be to repeat unit of transfer with the total data of multi-cast business data according to the number of transmissions, receive the multi-cast business data that base station repeats transmission.

Fig. 2 is a kind of schematic diagram of multi-cast business data provided in an embodiment of the present invention, as shown in Figure 2, it include N number of multi-cast business data unit (i.e. PDCP SDU) with multi-cast business data, each multi-cast business data unit includes k multi-cast business data packet (for multi-cast business data packet is TB) in this example, it is assumed that the transmission mode for the above-mentioned multi-cast business data that above-mentioned transmission instruction information includes are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with the total data of multi-cast business data, and the number of transmissions is 4 times.Then above-mentioned base station indicates that information is specifically as follows to terminal transmission multi-cast business data according to the transmission: base station according to each PDCP SDU of the multi-cast business data sequence, and the sequence of the TB in each PDCP SDU, all TB of the multi-cast business data are successively transferred to after terminal, according still further to the sequence of each PDCP SDU of the multi-cast business data, and the sequence of the TB in each PDCP SDU, all TB of the multi-cast business data are successively transferred to terminal again, until the number of transmissions reaches 4 times.Correspondingly, terminal is when indicating information receiving multicast business data according to the transmission, it can be to repeat unit of transfer with the total data of multi-cast business data to be received, the data which is repetition transmission are hard to tell without existing, base station is ensured when same multi-cast business data is transmitted several times to terminal, terminal can correctly receive the multi-cast business data being transmitted several times.

Second situation: the transmission mode of above-mentioned multi-cast business data are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with multi-cast business data unit.Then above-mentioned S105 may include: base station according to the number of transmissions, is to repeat unit of transfer with multi-cast business data unit, repeats transport multicast business datum to terminal.

Specifically, when above-mentioned base station is to repeat transmission mode of the unit of transfer to terminal transmission multi-cast business data according to multi-cast business data unit, when repeating transport multicast business datum to terminal, base station can be to repeat unit of transfer to repeat transport multicast business datum to terminal with the multi-cast business data unit of the multi-cast business data.That is, base station is after a multi-cast business data unit to the complete multi-cast business data of terminal transmission, it will repeat to transmit the multi-cast business data unit to terminal, until reaching the number of transmissions, then base station is continued in this way, to next multi-cast business data unit of the terminal transmission multi-cast business data, until to all multi-cast business data lists of the complete multi-cast business data of terminal transmission Member.Correspondingly, terminal receive base station transmission include above-mentioned multi-cast business data transmission mode transmission instruction information after, terminal can know that terminal can be the multi-cast business data for repeating unit of transfer and receiving base station transmission with multi-cast business data unit according to the transmission mode.In this way, terminal is indicating information according to transmission, when receiving the multi-cast business data of base station transmission, so that it may be to repeat unit of transfer with multi-cast business data unit according to the number of transmissions, receive the multi-cast business data that base station repeats transmission.

Fig. 3 is the schematic diagram of another multi-cast business data provided in an embodiment of the present invention, as shown in Figure 3, Fig. 3 shows one of multi-cast business data unit PDCP SDU1 of multi-cast business data, it is assumed that the multi-cast business data unit includes k multi-cast business data packet (multi-cast business data packet is TB in this example), the transmission mode for the above-mentioned multi-cast business data for then including when above-mentioned transmission instruction information are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with multi-cast business data unit, when the number of transmissions is 4 times, above-mentioned base station indicates that information is specifically as follows to terminal transmission multi-cast business data according to the transmission: base station according to each TB of the multi-cast business data unit sequence, the TB1-TBk of the multi-cast business data unit is successively transferred to after terminal, it presses again According to the sequence of each TB of the multi-cast business data unit, the TB1-TBk of the multi-cast business data unit is successively transferred to terminal again, until the number of transmissions reaches 4 times, base station just will continue to continue to transmit in this way to terminal next multi-cast business data unit of the multi-cast business data.Correspondingly, terminal is when indicating information receiving multicast business data according to the transmission, it can be to repeat unit of transfer with multicast industry unit to be received, without exist be hard to tell current transmission be which multi-cast business data unit data, base station is ensured when same multi-cast business data is transmitted several times to terminal, terminal can correctly receive the multi-cast business data.

The third situation: the transmission mode of above-mentioned multi-cast business data are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with multi-cast business data packet.Then above-mentioned S105 may include: base station according to the number of transmissions, is to repeat unit of transfer with multi-cast business data packet, repeats transport multicast business datum to terminal.

Specifically, when above-mentioned base station is to repeat transmission mode of the unit of transfer to terminal transmission multi-cast business data according to multi-cast business data packet, when repeating transport multicast business datum to terminal, base station can be to repeat unit of transfer to repeat transport multicast business datum to terminal with the multi-cast business data packet of the multi-cast business data.That is, base station is after a multi-cast business data packet to the complete multi-cast business data of terminal transmission, it will repeat to transmit the multi-cast business data packet to terminal, until reaching the number of transmissions, then base station is continued in this way, to next multi-cast business data packet of the terminal transmission multi-cast business data, until to all multi-cast business data packets of the complete multi-cast business data of terminal transmission.Correspondingly, Terminal receive base station transmission include above-mentioned multi-cast business data transmission mode transmission instruction information after, terminal can know that terminal can be the multi-cast business data for repeating unit of transfer and receiving base station transmission with multi-cast business data packet according to the transmission mode.In this way, terminal is indicating information according to transmission, when receiving the multi-cast business data of base station transmission, so that it may be to repeat unit of transfer with multi-cast business data packet according to the number of transmissions, receive the multi-cast business data that base station repeats transmission.

By taking above-mentioned multicast packet is a TB as an example, Fig. 4 is the schematic diagram of another multi-cast business data provided in an embodiment of the present invention, as shown in Figure 4, Fig. 4 shows one of multi-cast business data unit PDCP SDU1 of multi-cast business data, it is assumed that the multi-cast business data unit includes k multi-cast business data packet (multi-cast business data packet is TB in this example), the transmission mode for the above-mentioned multi-cast business data for then including when above-mentioned transmission instruction information are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with multi-cast business data packet, when iterative transfer times are 3 times, above-mentioned base station indicates that information is specifically as follows to terminal transmission multi-cast business data according to the transmission: base station according to each TB of the multi-cast business data unit sequence, by the TB of the multi-cast business data unit 1 is transferred to after terminal, with regard to repeating to the terminal transmission TB1, until iterative transfer times reach 3 times, base station just will continue to continue to transmit in this way to terminal next multi-cast business data packet of the multi-cast business data unit, that is TB2, until to the last one multi-cast business data packet of the last one complete multi-cast business data unit of terminal transmission.Correspondingly, terminal is when indicating information receiving multicast business data according to the transmission, it can be to repeat unit of transfer with multi-cast business data packet to be received, the data which is repetition transmission are hard to tell without existing, base station is ensured when same multi-cast business data is transmitted several times to terminal, terminal can correctly receive the multi-cast business data being transmitted several times.

When terminal receiving multicast data, the mode that receiver end radio resource link controls (RLC, Radio Link Control) entity handles RLC PDU is consistent with the UM mode in LTE before, is not repeated herein.

Multicast service transmission method provided in an embodiment of the present invention, base station is getting the transmission mode including the multi-cast business data, and after the transmission instruction information of the number of transmissions, base station can indicate information according to the transmission, the multi-cast business data is transmitted several times to terminal, the transmission can also be indicated that information is sent to terminal by base station simultaneously, so that terminal can indicate information according to the transmission, the multi-cast business data that base station is repeatedly sent correctly is received, is hard to tell the data which is repetition transmission without existing.Therefore, multicast service transmission method provided in an embodiment of the present invention, realize same multi-cast business data is transmitted several times to terminal on the basis of, it is ensured that terminal can correctly receive this and be transmitted multiple multicast service number According to, improve terminal be properly received multi-cast business data probability, enhance the robustness of multicast service.

Fig. 5 is the Signalling exchange flow chart of another multicast service transmission method provided in an embodiment of the present invention.What is involved is base stations for the present embodiment two according to transmission instruction information, and the detailed process of multi-cast business data packet indicated by the first instruction information and the first instruction information is sent to terminal.As shown in figure 5, above-mentioned S105 and S106 can also be replaced with following steps, specifically:

S201, base station indicate information according to transmission, send multi-cast business data packet indicated by the first instruction information and the first instruction information to terminal.

Specifically, in the present embodiment, base station is indicating information according to transmission, before sending multi-cast business data to terminal, base station can also generate the corresponding first instruction information of the multi-cast business data packet according to the number of multi-cast business data packet for each multi-cast business data packet of multi-cast business data.Wherein, which is used to indicate the mark of multi-cast business data packet, so that terminal when receiving the multi-cast business data packet, can know which multi-cast business data packet currently received multi-cast business data packet is according to the first instruction information.

The mark of above-mentioned multi-cast business data packet can be base station distribution, when specific implementation, if the transmission mode of above-mentioned multi-cast business data are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with the total data of multi-cast business data, then base station can be according to the number of all multi-cast business data packets of multi-cast business data, and the multi-cast business data packet of multi-cast business data is in the sequence of physical layer, mark of the number as the multi-cast business data packet is distributed for each multi-cast business data packet, and the first instruction information is generated according to the multi-cast business data packet that is identified as of the multi-cast business data packet, so that terminal is when receiving the multi-cast business data packet, it can be according to the first instruction information, determine received is which multi-cast business data packet in the multi-cast business data.

If the transmission mode of above-mentioned multi-cast business data are as follows: base station is to repeat unit of transfer to terminal transmission multi-cast business data with multi-cast business data unit, then base station can be according to the number of all multi-cast business data packets of multi-cast business data, and the multi-cast business data packet of multi-cast business data is in the sequence of physical layer, mark of the number as the multi-cast business data packet is distributed for each multi-cast business data packet, it can also be according to the number of all multi-cast business data packets of each multi-cast business data unit, and each multi-cast business data packet in the multi-cast business data unit is in the sequence of physical layer, mark of the number as the multi-cast business data packet is distributed for each multi-cast business data packet of the multi-cast business data unit, and the first instruction information is generated according to the multi-cast business data packet that is identified as of the multi-cast business data packet , so that terminal is when receiving the multi-cast business data packet, it can be according to first instruction Information determines received is which multi-cast business data packet in the multi-cast business data unit.

Optionally, if above-mentioned multi-cast business data packet is a TB, above-mentioned first instruction information is used to indicate the mark of the TB.If above-mentioned multi-cast business data packet is a segmentation, and the segmentation includes multiple TB, then all TB in the segmentation correspond to the same first instruction information, that is to say, that the mark of all TB in the segmentation is identical.When above-mentioned multi-cast business data packet is a segmentation and the segmentation is equal to multi-cast business data unit, that is, when above-mentioned multi-cast business data packet is a multi-cast business data data cell, then all TB in the multi-cast business data data cell correspond to the same first instruction information, that is, the mark of all TB in the segmentation is identical.

In this way, base station is generated in each multi-cast business data packet for multi-cast business data after the corresponding first instruction information of the multi-cast business data packet, base station can indicate information according to transmission, when transmitting each multi-cast business data packet of the multi-cast business data, while to the first instruction information of the terminal transmission multi-cast business data packet.It should be noted that, although said herein is base station according to transmission instruction information, multi-cast business data packet indicated by the first instruction information and the first instruction information is sent to terminal, but the repetition unit of transfer not limited in the transmission mode in above-mentioned transmission instruction information must be multi-cast business data packet, it is also possible to the total data of multi-cast business data, can also be the multi-cast business data unit (i.e. a PDCP SDU) of multi-cast business data.

Wherein, the present embodiment does not limit the mode that base station sends the first instruction information to terminal.Optionally, which can be individually sent to terminal by above-mentioned base station, the first instruction information carrying can also be sent to terminal etc. in control channel.Control channel mentioned here for example can be PDCCH.For the first instruction information carrying is sent to terminal in PDCCH, when specific implementation, above-mentioned base station, which can carry the first instruction information, is sent to terminal etc. in the Downlink Control Information (Downlink Control Information, referred to as: DCI) of PDCCH.

S202, terminal indicate information according to transmission, receive the first instruction information that base station is sent.

S203, terminal determine whether the corresponding multi-cast business data packet of the mark of multi-cast business data packet has been successfully received according to the first instruction information.

Specifically, in the present embodiment, terminal can be according to the first instruction information, first determine whether the corresponding multi-cast business data packet of mark of multi-cast business data packet has been properly received by terminal, if so, terminal is there is no need to receive the multi-cast business data packet again, if not, then terminal indicates information according to transmission, continues to the corresponding multi-cast business data packet of mark of the multi-cast business data packet of base station transmission.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce The expense of terminal.

Simultaneously, due to different terminals receive successful multi-cast business data packet under the conditions of different channels may be different, therefore, the first instruction information is sent by this, in a manner of indicating each multi-cast business data packet to terminal, it can make each terminal involved in multi-cast business data that the first instruction information can be used, judge oneself whether be successfully received multi-cast business data packet corresponding to the first instruction information.Therefore, under the premise of ensuring that all terminals involved in multi-cast business data can be properly received multi-cast business data, the expense of all terminals involved in multi-cast business data is reduced.

When implementing above-mentioned S203, terminal can by the mark of multi-cast business data packet that judges to have recorded whether include multi-cast business data packet mark, identify corresponding multi-cast business data packet to determine whether to be successfully received the multi-cast business data packet.Corresponding multi-cast business data packet is identified if so, determining and being properly received the multi-cast business data packet, then terminal can ignore the multi-cast business data packet of base station transmission, without any processing.If not, it is determined that be not successfully received the corresponding multi-cast business data packet of mark of multi-cast business data packet, continue to execute S204.

S204, terminal indicate information according to transmission when determination is not successfully received multi-cast business data packet indicated by the mark of multi-cast business data packet, continue to the corresponding multi-cast business data packet of mark of the multi-cast business data packet of base station transmission.

Specifically, if terminal is according to the first instruction information, determine that the corresponding multi-cast business data Bao Wei of the mark of multi-cast business data packet is successfully received, then terminal can indicate information according to transmission, continue to the corresponding multi-cast business data packet of mark of the multi-cast business data packet of base station transmission.Wherein, how terminal receives the mark corresponding multi-cast business data packet of multi-cast business data packet that base station send, specifically may refer to above-described embodiment, to this repeat no more according to transmission instruction information.

Optionally, after above-mentioned S204, if this method can also include: terminal after continuing to the corresponding multi-cast business data packet of mark of multi-cast business data packet of base station transmission, determination can successfully parse the multi-cast business data packet, when determining the corresponding multi-cast business data packet of mark for being properly received the multi-cast business data packet, terminal can recorde the mark of the multi-cast business data packet, so that base station again the multicast multi-cast business data packet when, the mark for the multi-cast business data packet that terminal can be recorded by oneself, determine that being properly received the multi-cast business data packet identifies corresponding multi-cast business data packet, that is, terminal can ignore the multi-cast business data packet of base station transmission, it is without any processing, to reduce the expense of terminal.

Multicast service transmission method provided in an embodiment of the present invention, base station can be each multi-cast business data Packet generates the first instruction information of the mark that one is used to indicate the multi-cast business data packet, and when sending multi-cast business data to terminal according to transmission instruction information, the first instruction information is sent to terminal with multi-cast business data packet together, so that terminal can be according to the first instruction information, determine whether to be properly received the multi-cast business data packet, and when determination is not successfully received the multi-cast business data packet, it just will continue to receive the multi-cast business data packet that base station is sent, and when determining that being properly received the multi-cast business data packet identifies corresponding multi-cast business data packet, terminal can ignore the multi-cast business data packet of base station transmission, it is without any processing.In this way, it can repeat to receive received successful multi-cast business data packet to avoid terminal, reduce the expense of terminal.

Fig. 6 is the Signalling exchange flow chart of another multicast service transmission method embodiment three provided in an embodiment of the present invention.The present embodiment three what is involved is base station to terminal send multicast service notice information detailed process.As shown in fig. 6, this method can also include:

S301, base station send multicast service notice information to terminal.

Wherein, above-mentioned multicast service notice information is used for the number of the multi-cast business data packet to terminal instruction multi-cast business data.

Specifically, in the present embodiment, base station is according to transmission instruction information, to before terminal transmission multi-cast business data, base station can also send multicast service notice information to terminal, to indicate the number of the multi-cast business data packet of the multi-cast business data.

Wherein, the present embodiment does not limit the mode that above-mentioned base station sends multicast service notice information to terminal.Optionally, which can be individually sent to terminal by above-mentioned base station, can also be carried the multicast service notice information and be sent to terminal etc. in control channel.Control channel mentioned here can be for example SC-MCCH, can also be PDCCH.For transmission instruction information carrying is sent to terminal in PDCCH, when specific implementation, which can be indicated that information carrying be sent to terminal etc. in the DCI of PDCCH by above-mentioned base station.

For multicast service notice information carrying is sent to terminal in SC-MCCH, when specific implementation, which can be carried in the MTCH list on SC-MCCH and be sent to terminal by above-mentioned base station.With continued reference to the MTCH list of the SC-MCCH of meaning shown in above-mentioned S103, then in the code of the MTCH list, segmentnumbersize indicates the number of the multi-cast business data multicast packet that includes, can indicate the number of the multi-cast business data packet of the multi-cast business data to terminal by segmentnumbersize this parameter.Optionally, above-mentioned MTCH can also further include: pdcpsdunumbersize, pdcpsize, segmentsize, wherein pdcpsdunumbersize For indicating the number of multi-cast business data unit (i.e. PDCP SDU) that above-mentioned multi-cast business data includes, pdcpsize indicates the transmission block number that a multi-cast business data packet PDCP SDU includes, and segmentsize indicates the number etc. for the transmission block that a multi-cast business data packet includes.

S302, terminal receive the multicast service notice information.

Specifically, terminal is after receiving the multicast service notice information, it can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Optionally, in another implementation of the invention, it can also include: the quantity of the TB in each multi-cast business data packet in above-mentioned multicast service notice information, so that terminal can be according to the quantity of the TB in the multi-cast business data packet that it is successfully received, to determine whether each multi-cast business data packet of the received complete multi-cast business data, ensure that terminal can be correct in this way in turn, completely receive the multi-cast business data, further increase the probability that terminal is properly received multi-cast business data, further enhance the robustness of multicast service.

Multicast service transmission method provided in an embodiment of the present invention, base station can send multicast service notice information to terminal, so that terminal is after receiving the multicast service notice information, it can be according to the quantity for the multi-cast business data packet that it is successfully received, to determine whether all multi-cast business data packets of the received complete multi-cast business data, ensure that terminal can correctly, completely receive the multi-cast business data in this way in turn, the probability that terminal is properly received multi-cast business data is improved, the robustness of multicast service is enhanced.

Those of ordinary skill in the art will appreciate that: realizing all or part of the steps of above-mentioned each method embodiment, this can be accomplished by hardware associated with program instructions.Program above-mentioned can be stored in a computer readable storage medium.When being executed, execution includes the steps that above-mentioned each method embodiment to the program；And storage medium above-mentioned includes: the various media that can store program code such as ROM, RAM, magnetic or disk.

Fig. 7 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention, as shown in fig. 7, the base station may include: receiver 11, processor 12 and transmitter 13；Wherein,

Receiver 11, for receiving the multi-cast business data of equipment of the core network transmission；

Processor 12, the transmission for obtaining multicast service indicate information；Transmission instruction information includes: group The transmission mode of multicast business data, and, the number of transmissions；Optionally, above-mentioned processor 12, it can be according to the type of service of multi-cast business data, and, mapping relations between preset type of service and transmission instruction information, the transmission instruction information for determining multicast service can also control and receive the transmission instruction information that machine 11 receives the multicast service that equipment of the core network is sent.

Transmitter 13 is used to send transmission instruction information to terminal, and indicates information to terminal transmission multi-cast business data according to transmission.

Base station provided in an embodiment of the present invention can be used for executing step performed by the base station in above-mentioned embodiment of the method shown in FIG. 1, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

Optionally, in a kind of implementation of the invention, above-mentioned multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity of multi-cast business data unit included by multi-cast business data is determined by base station.

Then under the implementation, in the transmission mode of multi-cast business data are as follows: with the total data of multi-cast business data be to repeat unit of transfer in the case where terminal transmission multi-cast business data, above-mentioned transmitter 13, specifically for according to the number of transmissions, it is to repeat unit of transfer with the total data of multi-cast business data, repeats transport multicast business datum to terminal.In the transmission mode of multi-cast business data are as follows: with multi-cast business data unit be to repeat unit of transfer in the case where terminal transmission multi-cast business data, above-mentioned transmitter 13, specifically for according to the number of transmissions, it is to repeat unit of transfer with multi-cast business data unit, repeats transport multicast business datum to terminal.In the transmission mode of multi-cast business data are as follows: with multi-cast business data packet be to repeat unit of transfer in the case where terminal transmission multi-cast business data, above-mentioned transmitter 13, specifically for according to the number of transmissions, it is to repeat unit of transfer with multi-cast business data packet, repeats transport multicast business datum to terminal.

Optionally, in another implementation of the invention, above-mentioned transmitter 13 can be also used for sending multicast service notice information to terminal, and multicast service notice information is used for the number of the multi-cast business data packet to terminal instruction multi-cast business data.

Base station provided in an embodiment of the present invention can be used for executing step performed by the base station in above-mentioned embodiment of the method shown in fig. 6, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

Above-mentioned processor 12, it is also used to before transmitter 13 sends multi-cast business data to terminal according to transmission instruction information, according to the number of multi-cast business data packet, the first instruction information is generated for the multi-cast business data packet of multi-cast business data, wherein, the first instruction information is used for the mark to terminal instruction multi-cast business data packet；

Then in this case, above-mentioned transmitter 13 specifically can be used for indicating information according to transmission, send the first instruction information and first to terminal and indicate multi-cast business data packet indicated by information.

Base station provided in an embodiment of the present invention can be used for executing step performed by the base station in above-mentioned embodiment of the method shown in fig. 5, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

Fig. 8 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention, as shown in figure 8, the terminal may include: receiver 21 and processor 22；Wherein,

Receiver 21, the transmission for receiving base station transmission indicate information；

Processor 22 controls and receives the multi-cast business data that machine 21 receives base station transmission for indicating information according to transmission；Transmission instruction information includes: the transmission mode of multi-cast business data, and, the number of transmissions.

Terminal provided in an embodiment of the present invention can be used for executing step performed by the terminal in above-mentioned embodiment of the method shown in FIG. 1, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

Optionally, in a kind of implementation of the invention, above-mentioned multi-cast business data may include: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity for the multi-cast business data unit that multi-cast business data includes is determined by base station.

Then under the implementation, in the transmission mode of multi-cast business data are as follows: in the case where being the multi-cast business data for repeating unit of transfer's reception base station transmission with the total data of multi-cast business data, above-mentioned processor 22, specifically it can be used for according to the number of transmissions, it is to repeat unit of transfer with the total data of multi-cast business data, controls and receives machine 21 and receive the multi-cast business data that base station repeats transmission.In the transmission mode of multi-cast business data are as follows: in the case where being the multi-cast business data for repeating unit of transfer's reception base station transmission with multi-cast business data unit, above-mentioned processor 22, specifically it can be used for according to the number of transmissions, it is to repeat unit of transfer with multi-cast business data unit, controls and receives machine 21 and receive the multi-cast business data that base station repeats transmission.In the transmission mode of multi-cast business data are as follows: in the case where being the multi-cast business data for repeating unit of transfer's reception base station transmission with multi-cast business data packet, above-mentioned processor 22, specifically it can be used for according to the number of transmissions, it is to repeat unit of transfer with multi-cast business data packet, the machine that controls and receives receives the multi-cast business data that base station repeats transmission.

Optionally, in another implementation of the invention, receiver 21 is also used to receive the multicast service notice information of base station transmission, and multicast service notice information is used to indicate the number of the multi-cast business data packet of multi-cast business data.

Terminal provided in an embodiment of the present invention can be used for executing in above-mentioned embodiment of the method shown in fig. 6 Terminal performed by step, it is similar that the realization principle and technical effect are similar, and details are not described herein.

Above-mentioned processor 22, specifically for indicating information according to transmission, it controls and receives machine 21 and receives the first instruction information that base station is sent, and according to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of multi-cast business data packet has been successfully received, when determination is not successfully received multi-cast business data packet indicated by the mark of multi-cast business data packet, information is indicated according to transmission, controls and receives the corresponding multi-cast business data packet of mark that machine 21 continues to the multi-cast business data packet of base station transmission；Wherein, the first instruction information is used to indicate the mark of multi-cast business data packet；First instruction information is number of the base station according to multi-cast business data packet, is the instruction information that the multi-cast business data packet of multi-cast business data generates.

Terminal provided in an embodiment of the present invention can be used for executing step performed by the terminal in above-mentioned embodiment of the method shown in fig. 5, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

Further, above-mentioned processor 22, it is also used to after the corresponding multi-cast business data packet of mark that the machine that controls and receives 21 continues to the multi-cast business data packet of base station transmission, in the corresponding multi-cast business data packet of the determining mark for being properly received multi-cast business data packet, the mark of multi-cast business data packet is recorded.

Optionally, above-mentioned processor 22, in the mark of multi-cast business data packet that specifically can be used for judging to have recorded whether include multi-cast business data packet mark, and when not including the mark of multi-cast business data packet in the mark for the multi-cast business data packet that judgement has recorded, the corresponding multi-cast business data packet of mark for being not successfully received multi-cast business data packet is determined.

As with the above discussed embodiment, the present embodiments relate to terminal can be the wireless terminals such as mobile phone, tablet computer, therefore, taking the terminal as an example: the structural block diagram that Fig. 9 is terminal provided in an embodiment of the present invention when being mobile phone.With reference to Fig. 9, the mobile phone may include: radio frequency (Radio Frequency, RF) the components such as circuit 1110, memory 1120, input unit 1130, display unit 1140, sensor 1150, voicefrequency circuit 1160, Wireless Fidelity (wireless fidelity, WiFi) module 1170, processor 1180 and power supply 1190.It will be understood by those skilled in the art that handset structure shown in Fig. 9 does not constitute the restriction to mobile phone, it may include perhaps combining certain components or different component layouts than illustrating more or fewer components.

It is specifically introduced below with reference to each component parts of the Fig. 9 to mobile phone:

RF circuit 1110 can be used for receiving and sending messages or communication process in, signal sends and receivees, and particularly, after the downlink information of base station is received, handles to processor 1180；In addition, the data of uplink are sent out Give base station.In general, RF circuit includes but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition, RF circuit 1110 can also be communicated with network and other equipment by wireless communication.Any communication standard or agreement can be used in above-mentioned wireless communication, including but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), long term evolution (Long Term Evolution, LTE)), Email, short message clothes Be engaged in (Short Messaging Service, SMS) etc..

Memory 1120 can be used for storing software program and module, and processor 1180 is stored in the software program and module of memory 1120 by operation, thereby executing the various function application and data processing of mobile phone.Memory 1120 can mainly include storing program area and storage data area, wherein storing program area can application program (such as sound-playing function, image player function etc.) needed for storage program area, at least one function etc.；Storage data area, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.In addition, memory 1120 may include high-speed random access memory, it can also include nonvolatile memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.

Input unit 1130 can be used for receiving the number or character information of input, and generate key signals input related with the user setting of mobile phone and function control.Specifically, input unit 1130 may include touch panel 1131 and other input equipments 1132.Touch panel 1131, also referred to as touch screen, the touch operation (for example user uses the operations of any suitable object or attachment on touch panel 1131 or near touch panel 1131 such as finger, stylus) of collectable user on it or nearby, and corresponding attachment device is driven according to preset formula.Optionally, touch panel 1131 may include both touch detecting apparatus and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and touch operation bring signal is detected, transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1180, and can receive order that processor 1180 is sent and be executed.Furthermore, it is possible to realize touch panel 1131 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel 1131, input unit 1130 can also include other input equipments 1132.Specifically, other input equipments 1132 can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, One of mouse, operating stick etc. are a variety of.

Display unit 1140 can be used for showing information input by user or be supplied to the information of user and the various menus of mobile phone.Display unit 1140 may include display panel 1141, optionally, display panel 1141 can be configured using the forms such as liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED).Further, touch panel 1131 can be covered on display panel 1141, after touch panel 1131 detects touch operation on it or nearby, processor 1180 is sent to determine the type of touch event, device 1180 is followed by subsequent processing according to the type of touch event and corresponding visual output is provided on display panel 1141.Although in Fig. 9, touch panel 1131 and display panel 1141 are the input and input function for realizing mobile phone as two independent components, but it is in some embodiments it is possible to touch panel 1131 and display panel 1141 is integrated and that realizes mobile phone output and input function.

Mobile phone may also include at least one sensor 1150, such as optical sensor, motion sensor and other sensors.Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can adjust the brightness of display panel 1141 according to the light and shade of ambient light, optical sensor can close display panel 1141 and/or backlight when mobile phone is moved in one's ear.As a kind of motion sensor, acceleration transducer can detect the size of (generally three axis) acceleration in all directions, size and the direction that can detect that gravity when static can be used to identify application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) of mobile phone posture etc.；The other sensors such as the gyroscope, barometer, hygrometer, thermometer, the infrared sensor that can also configure as mobile phone, details are not described herein.

Voicefrequency circuit 1160, loudspeaker 1161 and microphone 1162 can provide the audio interface between user and mobile phone.Electric signal after the audio data received conversion can be transferred to loudspeaker 1161 by voicefrequency circuit 1160, be converted to voice signal output by loudspeaker 1161；On the other hand, the voice signal of collection is converted to electric signal by microphone 1162, audio data is converted to after being received by voicefrequency circuit 1160, it again will be after the processing of audio data output processor 1180, through RF circuit 1110 to be sent to such as another mobile phone, or audio data exported to memory 1120 to be further processed.

WiFi belongs to short range wireless transmission technology, and mobile phone can help user to send and receive e-mail by WiFi module 1170, browse webpage and access streaming video etc., it provides wireless broadband internet for user and accesses.Although Fig. 9 shows WiFi module 1170, but it is understood that, and it is not belonging to must be configured into for mobile phone, it can according to need within the scope of not changing the essence of the invention and omit completely.

Processor 1180 is the control centre of mobile phone, utilize the various pieces of various interfaces and connection whole mobile phone, by running or executing the software program and/or module that are stored in memory 1120, and call the data being stored in memory 1120, the various functions and processing data for executing mobile phone, to carry out integral monitoring to mobile phone.Optionally, processor 1180 may include one or more processing units；Preferably, processor 1180 can integrate application processor and modem processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor mainly handles wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1180.

Mobile phone further includes the power supply 1190 (such as battery) powered to all parts, preferably, power supply can be logically contiguous by power-supply management system and processor 1180, to realize the functions such as management charging, electric discharge and power managed by power-supply management system.

Mobile phone can also include camera 1200, which can be front camera, or rear camera.Although being not shown, mobile phone can also include bluetooth module, GPS module etc., and details are not described herein.

In embodiments of the present invention, processor 1180 included by the mobile phone can be used for executing above-mentioned multicast service transmission method embodiment, and it is similar that the realization principle and technical effect are similar, and details are not described herein.

On the other hand the embodiment of the present invention also provides a kind of communication system, the communication system may include terminal provided by base station provided by earlier figures 7 and Fig. 8, wherein, above-mentioned base station can be used for executing step performed by the base station in Fig. 1, Fig. 5 and embodiment of the method shown in fig. 6, above-mentioned terminal can be used for executing Fig. 1, Fig. 5 and step performed by the terminal in embodiment of the method shown in fig. 6 its that the realization principle and technical effect are similar is similar, details are not described herein again.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or equivalent substitution of some or all of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (33)

1. A kind of multicast service transmission method characterized by comprising

   Receive the multi-cast business data that equipment of the core network is sent；

   The transmission for obtaining multicast service indicates that information, the transmission instruction information include: the transmission mode of the multi-cast business data, and, the number of transmissions；

   The transmission is sent to terminal and indicates information, and indicates information to multi-cast business data data described in the terminal transmission according to the transmission.
2. The method according to claim 1, wherein the multi-cast business data includes: multiple multi-cast business data units, each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity of multi-cast business data unit included by the multi-cast business data is determined by base station.
3. According to the method described in claim 2, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be to repeat unit of transfer to multi-cast business data described in the terminal transmission；

   It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising:

   It is to repeat unit of transfer with the total data of the multi-cast business data, Xiang Suoshu terminal repeats to transmit the multi-cast business data according to the number of transmissions.
4. According to the method described in claim 2, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be to repeat unit of transfer to multi-cast business data described in the terminal transmission；

   It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising:

   It is to repeat unit of transfer with the multi-cast business data unit, Xiang Suoshu terminal repeats to transmit the multi-cast business data according to the number of transmissions.
5. According to the method described in claim 2, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be to repeat unit of transfer to multi-cast business data described in the terminal transmission；

   It is described to indicate information to multi-cast business data described in the terminal transmission according to the transmission, comprising:

   It is to repeat unit of transfer with the multi-cast business data packet, Xiang Suoshu terminal repeats to transmit the multi-cast business data according to the number of transmissions.
6. According to the method described in claim 2, it is characterized in that, the method also includes:

   Multicast service notice information is sent to the terminal, the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data to the terminal.
7. According to the method described in claim 6, it is characterized in that, it is described indicate that information sends the multi-cast business data to the terminal according to the transmission before, further includes:

   It is that the multi-cast business data packet of the multi-cast business data generates the first instruction information, wherein the first instruction information is used to indicate the mark of the multi-cast business data packet to the terminal according to the number of the multi-cast business data packet；

   It is described to indicate that information sends the multi-cast business data to the terminal according to the transmission, comprising:

   Indicate that information, Xiang Suoshu terminal send multi-cast business data packet indicated by the first instruction information and the first instruction information according to the transmission.
8. A kind of multicast service transmission method characterized by comprising

   It receives the transmission that base station is sent and indicates information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；

   Information is indicated according to the transmission, receives the multi-cast business data of the base station transmission.
9. According to the method described in claim 8, each multi-cast business data unit includes at least one multi-cast business data packet it is characterized in that, the multi-cast business data includes: multiple multi-cast business data units；Wherein, the quantity for the multi-cast business data unit that the multi-cast business data includes is determined by the base station.
10. According to the method described in claim 9, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be the multi-cast business data for repeating unit of transfer and receiving base station transmission；

    It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising:

    It is to repeat unit of transfer with the total data of the multi-cast business data according to the number of transmissions, receives the multi-cast business data that the base station repeats transmission.
11. According to the method described in claim 9, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be the multi-cast business data for repeating unit of transfer and receiving base station transmission；

    It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising:

    It is to repeat unit of transfer with the multi-cast business data unit according to the number of transmissions, receives the multi-cast business data that the base station repeats transmission.
12. According to the method described in claim 9, it is characterized in that, the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be the multi-cast business data for repeating unit of transfer and receiving base station transmission；

    It is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising:

    It is to repeat unit of transfer with the multi-cast business data packet according to the number of transmissions, receives the multi-cast business data that the base station repeats transmission.
13. According to the method described in claim 9, it is characterized in that, the method also includes:

    The multicast service notice information that the base station is sent is received, the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data.
14. According to the method for claim 13, which is characterized in that it is described that information is indicated according to the transmission, receive the multi-cast business data of the base station transmission, comprising:

    Information is indicated according to the transmission, receives the first instruction information that the base station is sent, wherein the first instruction information is used to indicate the mark of the multi-cast business data packet；The first instruction information is number of the base station according to the multi-cast business data packet, is the instruction information that the multi-cast business data packet of the multi-cast business data generates；

    According to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received；

    When determination is not successfully received multi-cast business data packet indicated by the mark of the multi-cast business data packet, information is indicated according to the transmission, continues to the corresponding multi-cast business data packet of mark for the multi-cast business data packet that the base station is sent.
15. According to the method for claim 14, which is characterized in that after the corresponding multi-cast business data packet of mark for continuing to the multi-cast business data packet that the base station is sent, further includes:

    In the corresponding multi-cast business data packet of the determining mark for being properly received the multi-cast business data packet, the mark of the multi-cast business data packet is recorded.
16. According to the method for claim 14, which is characterized in that it is described according to the first instruction information, whether to determine the corresponding multi-cast business data packet of the mark of the multi-cast business data packet It is successfully received, comprising:

    Judge in the mark of multi-cast business data packet recorded whether include the multi-cast business data packet mark, if in the mark of the multi-cast business data packet recorded not including the mark of the multi-cast business data packet, it is determined that be not successfully received the corresponding multi-cast business data packet of mark of the multi-cast business data packet.
17. A kind of base station, which is characterized in that the base station includes:

    Receiver, for receiving the multi-cast business data of equipment of the core network transmission；

    Processor, the transmission for obtaining the multicast service indicate information；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions；

    Transmitter indicates information for sending the transmission to terminal, and indicates information to multi-cast business data described in the terminal transmission according to the transmission.
18. Base station according to claim 17, which is characterized in that the multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity of multi-cast business data unit included by the multi-cast business data is determined by the base station.
19. Base station according to claim 18, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: with the total data of the multi-cast business data be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the total data of the multi-cast business data, Xiang Suoshu terminal repeats to transmit the multi-cast business data.
20. Base station according to claim 18, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: with the multi-cast business data unit be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data unit, Xiang Suoshu terminal repeats to transmit the multi-cast business data.
21. Base station according to claim 18, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: with the multi-cast business data packet be to repeat unit of transfer in the case where multi-cast business data described in the terminal transmission, the transmitter, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data packet, Xiang Suoshu terminal repeats to transmit the multi-cast business data.
22. Base station according to claim 18, which is characterized in that the transmitter is also used to send multicast service notice information to the terminal, and the multicast service notice information to the terminal for referring to Show the number of the multi-cast business data packet of the multi-cast business data.
23. Base station according to claim 22, which is characterized in that

    The processor, it is also used to before the transmitter indicates that information sends the multi-cast business data to the terminal according to the transmission, according to the number of the multi-cast business data packet, the first instruction information is generated for the multi-cast business data packet of the multi-cast business data, wherein, the first instruction information is used to indicate the mark of the multi-cast business data packet to the terminal；

    The transmitter is specifically used for indicating information according to the transmission, and Xiang Suoshu terminal sends multi-cast business data packet indicated by the first instruction information and the first instruction information.
24. A kind of terminal, which is characterized in that the terminal includes:

    Receiver, the transmission for receiving base station transmission indicate information；

    Processor controls the multi-cast business data that the receiver receives the base station transmission for indicating information according to the transmission；The transmission instruction information includes: the transmission mode of the multi-cast business data, and, the number of transmissions.
25. Terminal according to claim 24, which is characterized in that the multi-cast business data includes: multiple multi-cast business data units, and each multi-cast business data unit includes at least one multi-cast business data packet；Wherein, the quantity for the multi-cast business data unit that the multi-cast business data includes is determined by the base station.
26. Terminal according to claim 25, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the total data of the multi-cast business data, the processor, specifically for according to the number of transmissions, it is to repeat unit of transfer with the total data of the multi-cast business data, controls the receiver and receive the multi-cast business data that the base station repeats transmission.
27. Terminal according to claim 25, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the multi-cast business data unit, the processor, specifically for according to the number of transmissions, it is to repeat unit of transfer with the multi-cast business data unit, controls the receiver and receive the multi-cast business data that the base station repeats transmission.
28. Terminal according to claim 25, it is characterized in that, in the transmission mode of the multi-cast business data are as follows: in the case where being the multi-cast business data that repetition unit of transfer receives the base station transmission with the multi-cast business data packet, the processor, specifically for according to the number of transmissions, with institute Multi-cast business data packet is stated to repeat unit of transfer, the receiver is controlled and receives the multi-cast business data that the base station repeats transmission.
29. Terminal according to claim 25, it is characterized in that, the receiver, is also used to receive the multicast service notice information that the base station is sent, and the multicast service notice information is used to indicate the number of the multi-cast business data packet of the multi-cast business data to the terminal.
30. Terminal according to claim 29, it is characterized in that, the processor, specifically for indicating information according to the transmission, it controls the receiver and receives the first instruction information that the base station is sent, and according to the first instruction information, determine whether the corresponding multi-cast business data packet of the mark of the multi-cast business data packet has been successfully received, when determination is not successfully received multi-cast business data packet indicated by the mark of the multi-cast business data packet, information is indicated according to the transmission, control the corresponding multi-cast business data packet of mark that the receiver continues to the multi-cast business data packet that the base station is sent；

    Wherein, the first instruction information is used to indicate the mark of the multi-cast business data packet；The first instruction information is number of the base station according to the multi-cast business data packet, is the instruction information that the multi-cast business data packet of the multi-cast business data generates.
31. Terminal according to claim 30, it is characterized in that, the processor, it is also used to after the corresponding multi-cast business data packet of mark for controlling the multi-cast business data packet that the receiver continues to the base station transmission, in the corresponding multi-cast business data packet of the determining mark for being properly received the multi-cast business data packet, the mark of the multi-cast business data packet is recorded.
32. Terminal according to claim 30, it is characterized in that, the processor, specifically in the mark of multi-cast business data packet that judges to have recorded whether include the multi-cast business data packet mark, and when not including the mark of the multi-cast business data packet in the mark for the multi-cast business data packet that judgement has recorded, the corresponding multi-cast business data packet of mark for being not successfully received the multi-cast business data packet is determined.
33. A kind of communication system, which is characterized in that the communication system include: such as the described in any item base stations claim 17-23, and, such as the described in any item terminals of claim 24-32.