CN101247544A - A transmission method, system and equipment for multicast/broadcast service MBMS - Google Patents

Abstract

A method, system and equipment for multicast/broadcast MBMS transmission, in which a high-speed shared data sending entity is set on the wireless access network side, and a high-speed shared data receiving entity is set on the user equipment side, wherein the method includes : The high-speed shared data sending entity on the wireless access network side sends the MBMS data packet to the user equipment side in a high-speed downlink packet access transmission mode; the high-speed shared data receiving entity on the user equipment side receives the MBMS data packet. In the embodiment of the present invention, a high-speed shared data sending entity is set on the wireless access network side, and a high-speed shared data receiving entity is set on the user equipment side, so as to realize the provision of MBMS data packets on the downlink shared channel in the transmission mode of high-speed downlink packet access transmission, which improves the transmission speed of MBMS.

Description

A transmission method, system and equipment for multicast/broadcast service MBMS

technical field

The invention relates to the technical field of communication, in particular to the field of wireless communication based on downlink shared channels.

Background technique

The MAC (Media Access Control Layer) structure of the UTRAN (Universal Terrestrial Radio Access Network) side supported by the existing MBMS (Multimedia Broadcast/Multicast Service, broadcast/multicast service) is shown in Figure 1, mainly including MAC-hs ( High Speed Shared Media Access Control) entity and MAC-c/sh/m (Common/Shared/Multicast Broadcast Media Access Control) entity.

Among them, the MAC-c/sh/m entity is to complete the MBMS service, adding the MACm (multicast broadcast media access control) entity. The MAC-c/sh/m entity has the following functions:

add MBMS-ID (add MBMS ID, the MBMS ID corresponds to the corresponding logical channel, so to some extent, it can also be called logical channel ID): the MBMS-ID field located at the header of the MAC, used to distinguish MBMS service type;

TCTF MUX (target channel type field multiplexing): used to indicate the mapping relationship between logical channels and transport channels, that is, add the target channel type field to the data header, and fill in the corresponding value in the type field;

Scheduling/buffering/level processing: according to the level of MBMS data flow and non-MBMS data flow, manage the general transmission resources of the above two data flows.

TFC selection (transmission format combination selection): select the combination of transmission formats so that MTCH (MBMS point-to-multipoint transport channel, carrying MBMS data) and MCCH (MBMS point-to-multipoint control channel, carrying MBMS data control information, characterizes the characteristics of MBMS data information on MTCH) is mapped to FACH (Forward Access Channel).

The MAC-hs entity is mainly responsible for completing HSDPA. HSDPA refers to high-speed downlink packet access. It is a modulation and demodulation algorithm proposed to meet the asymmetrical requirements of uplink/downlink data services. It can transfer downlink data without changing the existing WCDMA network structure. The service rate is increased to 10Mbps.

In the existing MBMS business, the method of MBMS data transmission is:

Step 1. The high layer on the UTRAN side sends the MBMS data to the MAC-c/sh/m entity on the UTRAN side through MCCH and MTCH channels.

Step 2, the MAC-c/sh/m entity on the UTRAN side first adds MBMS-ID to the MBMS data on the MTCH channel; then the data on the MCCH and MTCH channels are used for TCTF multiplexing operation, and the data of the above two channels are mapped to On the FACH channel; then through scheduling/buffering/level processing and TFC selection operations, the data on the FACH channel is transmitted to the UE side, and at the same time, the UTRAN side notifies the indicator channel (MICH) through MBMS, for users in each MBMS service level, Perform broadcast paging instruction to the UE side, and notify the UE of the time to receive MBMS data from the UTRAN side.

Step 3: After the FACH channel on the UE side MAC-c/sh/m entity receives the MBMS data from the UTRAN side, perform TCTF demultiplexing operation, and map the data on the FACH channel to the MCCH and MTCH channels; then, The type of data is identified by reading the data MBMS-ID on the MTCH channel, and then the data on the MCCH and MTCH channels are sent to the corresponding high layer on the UE side.

From the above analysis, it can be concluded that since there is no channel for carrying MBMS data between the MAC-c/sh/m entity and the MAC-hs entity on the UTRAN side, the MBMS data cannot be transmitted through the MAC-hs entity, that is, the high-speed data of HSDPA cannot be used The transmission characteristics implement MBMS, so the transmission rate of the existing MBMS is low;

In addition, the data packet header of MBMS is as shown in accompanying drawing 2 and accompanying drawing 3, because the capacity of TCTF (logical channel type) and MBMS-ID (logic channel identification) of packet header has 0-12 bits, has occupied air interface resource, thereby reduces The data capacity of each packet.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the purpose of the embodiment of the present invention is to provide a broadcast/multicast service MBMS transmission method, system and equipment. The embodiment of the present invention provides a high-speed shared data The sending entity is provided with a high-speed shared data receiving entity on the user equipment side, which realizes the transmission of MBMS data packets on the downlink shared channel in the transmission mode of high-speed downlink packet access, and improves the transmission speed of MBMS.

The purpose of the embodiments of the present invention is to be achieved through the following technical solutions:

An embodiment of the present invention provides a broadcast/multicast MBMS transmission method. A high-speed shared data sending entity is set on the wireless access network side, and a high-speed shared data receiving entity is set on the user equipment side. The method includes:

The high-speed shared data sending entity on the radio access network side sends the MBMS data packet to the user equipment side in a high-speed downlink packet access transmission mode;

The high-speed shared receiving entity at the user equipment side receives the MBMS data packet.

The embodiment of the present invention also provides a broadcast/multicast service MBMS transmission system, the system includes:

A high-speed shared data sending unit: responsible for sending MBMS data packets to the user equipment side through a transmission channel in a high-speed downlink packet access transmission mode; the high-speed shared data sending unit is located at the radio access network side;

A high-speed shared data receiving unit: responsible for receiving the MBMS data packets of the high-speed shared data sending unit, and the high-speed data receiving unit is located at the user equipment side.

An embodiment of the present invention further provides a communication device on the wireless access network side, including:

MBMS class queue allocation module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resource of the MBMS data packet and the logical channel used for sending; Make a distinction, and send data packets of the same class and the same level to the corresponding queue module of the same class and the same level;

Level queue module: responsible for storing corresponding types of data packets according to level;

Hybrid automatic retransmission module: used to add sequence numbers to the data packets and send them to the transmission format and physical resource allocation selection module when it is determined that the data packets stored in the one or more hierarchical queue modules need to be retransmitted;

Transmission format and physical resource allocation selection module: send the received data packet to the user equipment side through a predetermined transmission format and physical resource.

An embodiment of the present invention further provides a user equipment, including:

Receiving module: responsible for receiving MBMS data packets;

Rearrangement distribution module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resources for sending the MBMS data packet and the logical channel used for sending; when determining that the data packets need to be sorted, according to the data The type of the packet is sent to the corresponding rearrangement queue module;

Rearranging queue module: responsible for sorting the received data packets according to the sequence numbers of the data packets.

It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that the embodiments of the present invention provide a broadcast/multicast service MBMS transmission method, system and equipment. The embodiments of the present invention provide high-speed The shared data sending entity is provided with a high-speed shared data receiving entity on the user equipment side, which realizes the transmission of MBMS data packets on the downlink shared channel in the high-speed downlink packet access transmission mode, and improves the transmission speed of MBMS.

Description of drawings

FIG. 1 is a schematic diagram of a MAC structure on the UTRAN side in the prior art;

Fig. 2 is a schematic diagram of the MAC format of the MCCH data packet in the prior art;

FIG. 3 is a schematic diagram of a MAC format of an MTCH data packet in the prior art;

Fig. 4 is a schematic flow chart of the method described in the embodiment of the present invention;

5 is a schematic diagram of the MAC format of the MCCH or MTCH data packet in the embodiment of the present invention;

FIG. 6 is a schematic flow diagram of configuring a high-speed shared data sending entity on the UTRAN side of an embodiment of the present invention;

FIG. 7 is a schematic flow diagram of configuring a high-speed shared data receiving entity on the UE side according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the specific processing procedure of the MBMS data packet to be sent by the UTRAN side of the embodiment of the present invention;

FIG. 9 is a schematic diagram of a specific processing procedure of a UE side for a received MBMS data packet according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a communication device on the UTRAN side according to an embodiment of the present invention;

Fig. 11 is a schematic structural diagram of the user equipment implemented in the present invention.

Detailed ways

The method, system and equipment described in the embodiment of the present invention will be described in detail below with reference to accompanying drawings 4 to 11 .

First, the method described in the embodiment of the present invention is described, including:

A high-speed shared data sending entity is set on the UTRAN (Universal Terrestrial Radio Access Network) side, and a high-speed shared data receiving entity is set on the UE (User Equipment) side. The high-speed shared data sending entity and the high-speed shared data described in the embodiments of the present invention The receiving entity may be a MAC-mhs entity in the specific implementation process of the present invention, and the MAC-mhs entity has the same functions as the existing MAC-hs entity.

Map the logical channel to the transport channel, that is, the UTRAN side maps the logical channel MCCH and the logical channel MTCH on the UTRAN side to the transport channel HS-DSCH (high-speed shared data channel) on the UTRAN side through the high-speed shared data transmission entity; the UE side will The MCCH and MTCH on the UE side are mapped to the transmission channel HS-DSCH on the UE side through the high-speed shared data receiving entity.

The process of MBMS data packet transmission is shown in Figure 4, specifically including:

Step 41, before sending the MBMS data packet, the UTRAN side notifies the UE through the RRC layer (the third layer of the UTRAN interface protocol, radio resource control layer) signaling: the physical resource of the MBMS data packet and the logical channel used for sending Relationship information; the relationship information includes at least one of the following information: channelization code used for sending MBMS data packets, modulation mode, sending interval and size of MBMS data packets, subcarriers used for sending MBMS data packets, etc.; MBMS data packets include: MCCH data packets and/or MTCH data packets; the logical channels include: logical channel MCCH, used to carry MCCH data packets; logical channel MTCH, used to carry MTCH data packets.

Step 42, network sends MBMS packet, UTRAN side RLC layer (radio link control layer in the second layer of UTRAN interface protocol, RLC layer transmits data between the MAC layer in the second layer of UTRAN interface protocol by logical channel) After the processing of the obtained MBMS data packet is completed, the MBMS data packet is sent to the high-speed shared data sending entity on the UTRAN side through the logical channel MTCH and/or the logical channel MCCH. The processing includes operations such as segmentation or concatenation, and adding an RLC layer header. There are mature solutions in the prior art, and details will not be repeated here.

Step 43, the high-speed shared data sending entity on the UTRAN side judges the received MBMS packet: whether it is an MTCH packet or an MCCH packet, and then distinguishes the MTCH packet and/or MCCH packet according to a predetermined MBMS level, and MCCH data of the same level are stored in the same MCCH queue, and/or MTCH data of the same level are stored in the same MTCH queue.

Step 44, after the high-speed shared data sending entity on the UTRAN side adds the necessary header information to the MTCH data packet and/or MCCH data packet, send it to the MAC-mhs on the UE side in HSDPA or LTE (Long Term Evolution Network) data transmission mode The entity sends the MBMS data packet, and the HSDPA or LTE data transmission mode has a mature solution in the prior art, so it will not be repeated here; the process of adding header information specifically includes:

The high-speed shared data sending entity on the UTRAN side judges whether it is necessary to add a TSN sequence number to the data packets in each MCCH-level queue or to the data packets in the MTCH-level queue according to whether the MBMS data packet needs to be retransmitted. If the MBMS data packet is not retransmitted , then no TSN sequence number is added to the MBMS data packet; if the MBMS data packet is retransmitted, TSNs are added according to the rank queues, here, each queue occupies one TSN space. Whether the data packet needs to be retransmitted is determined by the service characteristics of MBMS.

Among them, the MAC format of the MBMS data packet is shown in Figure 5, wherein, a is the MAC format that does not need to be retransmitted and does not add a TSN sequence number; b is the MAC format that requires retransmission and adds a TSN sequence number in the packet header. Since the MCCH or MTCH data packet header of the embodiment of the present invention does not need to add the logical channel type and logical channel identifier, and only adds the TSN sequence number when retransmission is required, the data capacity of each data packet is improved.

Then the high-speed shared data sending entity sends the MTCH data packet and the MCCH data packet to the UE side through the HS-DSCH channel respectively. If only the MTCH data packet or the MCCH data packet is sent to the UE side through the HS-DSCH channel to receive the high-speed shared data Physically. There are two sending methods: the first method is to use the specified sending format within the specified time. In this method, the channelization code, modulation method, sending interval and the size of the MBMS data packet used in sending the data packet are all The UE is notified through the RRC layer before the start of this MBMS data transmission. At this time, sending data does not need to use the HS-SCCH (High Speed Shared Control Channel) channel to tell the UE how to demodulate the received data. The second is to carry out dynamic scheduling. The high-speed shared data entity selects the MBMS data packets to be sent according to predetermined rules through the scheduler of the MAC-mhs entity (the scheduler can adopt the scheduler of MAC-hs in the prior art). , the channelization code and modulation method used to send MBMS data packets must use the HS-SCCH channel to tell the UE how to demodulate the received data, and carry the logical channel type in the HS-SCCH to indicate that the MBMS data packets sent are MCCH The data is still MTCH data.

Step 45, the PHY layer (the first layer of the UTRAN interface protocol) on the UE side receives the MBMS data packet, and sends the data packet to the high-speed shared data receiving entity according to the previously obtained relationship information between the physical resource and the logical channel , and notify the high-speed shared data receiving entity of the logical channel type and logical channel identifier corresponding to the MBMS data packet; specifically include:

For the first transmission method described in step 44, the RRC layer on the UE side configures the PHY layer on the UE side, and the PHY layer on the UE side records the relationship between the MBMS physical resources and logical channels. Therefore, the UE side Before the data transmission, the relationship between the physical resource and the logical channel of the MBMS data packet has been known by the RRC layer. After the MBMS data transmission starts, the PHY layer on the UE side receives the MBMS data packet at the specified time and the specified channelization code and modulation mode, and sends the MBMS data packet to the high-speed shared data receiving entity, and the UE The PHY layer on the side adds a logical channel type and a logical channel identifier to the primitive "PHY-Data-INDICATION" of the MAC layer.

For the second transmission method described in step 44, the UE first needs to monitor the HS-SCCH channel, decode the HS-SCCH information obtained through monitoring, and obtain the channelization code, time interval, modulation method and MBMS packet size, etc. Then the MBMS data packet is received from the HS-DSCH under the time, channelization code and modulation mode stipulated in the UTRAN interface protocol, and the logical channel type and Logical channel identifier.

Step 46, the high-speed shared data receiving entity on the UE side processes the received MBMS data packet, and then sends the MBMS data packet to the RLC layer on the UE side through a corresponding logical channel, and the processing process specifically includes:

After receiving the primitives of the PHY layer and the MBMS data packet, the high-speed shared data receiving entity on the UE side judges whether the received MBMS data packet is an MTCH data packet or an MCCH data packet. It is sent to the reordering buffer leading to MCCH. If MTCH data is received, the MBMS data packet will be sent to each MBMS service reordering buffer according to the logical channel identifier carried in the primitive.

Then, each reordering buffer of the high-speed shared data receiving entity on the UE side knows whether the data packet carries TSN according to the configuration information of the RRC layer. They are respectively sent to the corresponding RLC layer of the UE through the MCCH or MTCH channel in turn. If the data packet does not carry a TSN, the reordering buffer directly sends the data packet to the corresponding logical channel after receiving it.

The method is described below with an example.

In the implementation of the method in the present invention, in the specific implementation process, in the hspa+ system, a MAC entity that maps the logical channel MTCH and MCCH on the UTRAN side to the transport channel HS-DSCH on the UTRAN side is set on the UTRAN side, that is, the high-speed Shared data sending entity; a MAC entity that maps the logical channels MTCH and MCCH on the UE side to the transport channel HS-DSCH on the UE side is set on the UE side, that is, the high-speed shared data receiving entity.

When there is MBMS data (for example, MBMS service 1) to be transmitted in the form of p-t-m (point-to-multipoint transmission data), UTRAN notifies many UEs that are ready to receive this service through RRC layer signaling: the physical resources of the MBMS data packet and The relationship between the two logical channels used for transmission. The physical resources include: channelization codes used when sending MBMS data packets, transmission intervals, modulation methods, and the size of MBMS data packets. The logical channels include logical channel types (such as MTCH) and a logical channel identifier (such as service 1), after the RRC layer of the UE receives the MBMS data packet, it configures the PHY layer of the UE so that the PHY layer records both the physical resource and the logical channel Correspondence between.

The RRC layer on the UTRAN side also configures the high-speed shared data sending entity so that it can send this service on predetermined physical resources and logical channels, and configures the data of this service not to be retransmitted at the PHY layer. The configuration process on the UTRAN side is shown in Figure 6, specifically: the RRC layer on the UTRAN side configures the PHY layer so that the PHY layer records the following configuration information: MBMS service 1 will use the channel on the first TTI of each CFN The encoding code is A, the modulation method is QPSK, and the TB is L for transmission.

The configuration process on the UE side is shown in Figure 7, specifically: UTRAN notifies the UE that is ready to receive this service through RRC layer signaling, and the RRC layer on the UE side configures the PHY layer so that the PHY layer records the following configuration information: MBMS service 1 will be sent using channelization code A, modulation scheme QPSK, and TB L on the first TTI of each CFN.

The specific process of the high-speed shared data sending entity on the UTRAN side for the MBMS data packet is shown in Figure 8, specifically including: the network sends the MBMS data, the high-speed shared data receiving entity on the UTRAN side receives the MBMS data packet from the RLC layer, and determines the MBMS data The logical channel type of the packet is MTCH, and the logical channel identifier is service 1, then the high-speed shared data receiving entity puts the MBMS data packet into the corresponding column of MTCH (such as MTCH2), and the high-speed shared data receiving entity The configuration information knows that this data packet will be encoded with channelization code a and modulation mode qpsk on hs-pdsch (high-speed downlink physical shared channel) on the first TTI subframe on the next CFN. Therefore, the scheduler of MAC-mhs will send the data packet to the PHY layer on the UTRAN side at an appropriate time, and tell the PHY layer the sending requirement of this data packet. The PHY layer on the UTRAN side will send the data over the air with the configured coding method and the scheduled time, and send the data to the UE side.

The processing process of the high-speed shared data receiving entity on the UE side for the received MBMS data is shown in Figure 9, which specifically includes: the UE side receives the data packet at a predefined time, and after receiving the data packet, records the service and physical data according to the PHY layer. According to the corresponding relationship of resources, it is known that this MBMS data packet is the data of service 1, so when the PHY layer submits the data to the high-speed shared data receiving entity, it indicates that the logical channel type is MTCH, and the logical channel is identified as service 1, so it is sent to After arriving at the rearrangement buffer of MTCH2, this data is not retransmitted, so the rearrangement buffer directly sends the packet to the RLC layer corresponding to the logical channel MTCH2 corresponding to service 1. The transfer is now complete.

The system described in the embodiment of the present invention will be described in detail below.

The system described in the embodiment of the present invention specifically includes: a high-speed shared data sending unit on the wireless access network side and a high-speed shared data receiving unit on the user equipment side. The high-speed shared data sending unit on the wireless access network side sends the MBMS data packet to the user equipment side through the transmission channel; the high-speed shared data receiving unit on the user equipment side receives the MBMS data packet.

The structure of the wireless access network side high-speed shared data sending unit is shown in FIG. 10 , including: MBMS class queue allocation module, class queue module, hybrid automatic transmission module, transmission format and resource allocation selection module.

MBMS level queue allocation module: judge the received MBMS data packet according to the physical resources and logical channel information of the MBMS data packet: whether it is an MTCH data packet or an MCCH data packet, and then divide the MTCH data packet and MCCH data packet according to the established MBMS Classes are distinguished, MCCH data of the same class are stored in the same MCCH queue, and MTCH data of the same class are stored in the same MTCH queue.

Class queue module: may include MCCH class queue module and/or MCCH class queue module;

MCCH level queue module: store MCCH queues of different levels;

MTCH level queue module: store MTCH queues of different levels.

Hybrid automatic retransmission module: judge according to whether the MBMS data packet needs to be retransmitted, whether it is necessary to add a TSN sequence number to the data packet in each MCCH level queue or to the data packet in the MTCH level queue, if the MBMS data packet is not retransmitted, Then the TSN sequence number is not added to the MBMS data packet; if the MBMS data packet is retransmitted, TSNs are added according to the rank queues, here, each queue occupies one TSN space. Then send the MCCH data packet and/or MTCH data packet to the transmission format and resource allocation selection module.

Transmission format and resource allocation selection module: transmit the MBMS data packet to the UE side through the HS-DSCH channel according to the predetermined transmission format and physical resources.

The structure of the user equipment side high-speed shared data receiving unit is shown in Figure 11, including:

Receiving module: receiving MBMS data packets;

Rearrangement distribution module: judge the type of the MBMS data packet according to the physical resources of the sending MBMS data packet and the logical channel information used for sending; when determining that the MCCH data packets and/or MTCH data packets need to be sorted , the MCCH data packet is sent to the MCCH rearrangement queue module; and/or, the MTCH data packet is sent to the MTCH rearrangement queue module;

Reordering queue module: may include MCCH rearranging queue module and/or MTCH rearranging queue module;

MCCH rearrangement queue module: sort the MCCH data packets according to the sequence numbers of the MCCH data packets;

MTCH rearrangement queue module: sort the MTCH data packets according to the sequence numbers of the MTCH data packets.

The high-speed shared data receiving unit on the user equipment side also includes:

Decomposition module: when the MCCH data packet and/or MTCH data packet contains a header, remove the header information.

The embodiment of the present invention also provides a communication device on the access side of the wireless network, as shown in FIG. 10 , which specifically includes: an MBMS class queue allocation module, a class queue module, a hybrid automatic transmission module, and a transmission format and resource allocation selection module ; The communication device may be a base station.

MBMS level queue allocation module: judge the received MBMS data packet according to the physical resources and logical channel information of the MBMS data packet: whether it is an MTCH data packet or an MCCH data packet, and then divide the MTCH data packet and MCCH data packet according to the established MBMS Classes are distinguished, MCCH data of the same class are stored in the same MCCH queue, and MTCH data of the same class are stored in the same MTCH queue.

Level queue module: may include MCCH level queue module and/or MTCH level queue module;

MCCH level queue module: store MCCH queues of different levels.

MTCH level queue module: store MTCH queues of different levels.

Hybrid automatic retransmission module: judge according to whether the MBMS data packet needs to be retransmitted, whether it is necessary to add a TSN sequence number to the data packet in each MCCH level queue or to the data packet in the MTCH level queue, if the MBMS data packet is not retransmitted, Then the TSN sequence number is not added to the MBMS data packet; if the MBMS data packet is retransmitted, TSNs are added according to the rank queues, here, each queue occupies one TSN space. Then send the MCCH data packet and/or MTCH data packet to the transmission format and resource allocation selection module.

Transmission format and resource allocation selection module: transmit the MBMS data packet to the UE side through the HS-DSCH channel according to the predetermined transmission format and physical resources.

The embodiment of the present invention also provides a user equipment, as shown in FIG. 11 , which specifically includes:

Receiving module: receiving MBMS data packets;

Rearrangement distribution module: judge the type of the MBMS data packet according to the physical resources of the sending MBMS data packet and the logical channel information used for sending; when determining that the MCCH data packets and/or MTCH data packets need to be sorted , the MCCH data packet is sent to the MCCH rearrangement queue module; and/or, the MTCH data packet is sent to the MTCH rearrangement queue module;

Reordering queue module: can include MCCH rearranging queue module and MTCH rearranging queue module;

MCCH rearrangement queue module: sort the MCCH data according to the serial number of the MCCH data packet;

MTCH rearrangement queue module: sort MTCH data according to the serial number of MTCH data packets.

The high-speed shared data receiving unit on the user equipment side also includes:

Decomposition module: when the MCCH data packet and/or MTCH data packet contains a header, remove the header information.

The specific implementation process of the system and equipment described in the embodiment of the present invention has been described in detail in the above method, and will not be repeated here.

In the embodiment of the present invention, only the wireless access network is UTRAN as an example for illustration. Those skilled in the art should know that the embodiment of the present invention is also applicable to E-UTRAN (enhanced UTRAN network).

In order to simplify the signaling process and shorten the delay, E-UTRAN abandons the RNC-NodeB structure of UTRAN and is completely composed of eNodeB (base station).

The wireless access network of the E-UTRAN structure has two transmission channels under a single downlink carrier: DL_SCH (downlink shared channel) and MCH (multicast channel). If MBMS services are transmitted in multiple cells, MTCH and MCCH information Carried on the MCH channel, the MCH transport channel supports air interface combination, but does not support selective combination, because the scheduling and mapping of the DL_SCH channel and the MCH channel are different, so there are two types of MCCH in a cell: service-based MCCH and cell-based MCCH MCCH. The scheduling information scheduling corresponding to different transmission channels is different, so the MAC header also has different scheduling functions. In the wireless access network with E-UTRAN structure, the configuration process on the UE and UTRAN side and the transmission process of MBMS data packets can refer to the above-mentioned embodiments, and will not be repeated here.

In addition, the embodiments of the present invention are not only applicable to W-CDMA (Wideband Code Division Multiple Access) communication systems, but also applicable to all wireless communication systems based on downlink shared channels.

It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that the embodiments of the present invention provide a broadcast/multicast service MBMS transmission method, system and equipment. The embodiments of the present invention provide high-speed The shared data sending entity is provided with a high-speed shared data receiving entity on the user equipment side, which realizes the transmission of MBMS data packets on the downlink shared channel in the high-speed downlink packet access transmission mode, and improves the transmission speed of MBMS. In addition, since UTRAN has notified UEMBMS data packets of physical resources and logical channel information, it is not necessary to add TCTF (logical channel type) and MBMS-ID (logical channel identification) in the header, only when necessary. The TSN logo is added, thereby increasing the data capacity of the data packet.

The above is only a preferred specific implementation of the embodiment of the present invention, but the scope of protection of the embodiment of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the embodiment of the present invention, Easily conceivable changes or substitutions shall fall within the protection scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention should be determined by the protection scope of the claims.

Claims (13)

1. A transmission method of broadcast/multicast service MBMS is characterized in that, a high-speed shared data sending entity is provided at the wireless access network side, and a high-speed shared data receiving entity is provided at the user equipment side, and the method includes: The high-speed shared data sending entity on the radio access network side sends the MBMS data packet to the user equipment side in a high-speed downlink packet access transmission mode; The high-speed shared data receiving entity at the user equipment side receives the MBMS data packet. 2. The method according to claim 1, wherein the type of the MBMS data packet comprises: a point-to-multipoint transport channel MTCH data packet and/or a point-to-multipoint control channel MCCH data packet. 3. The method according to claim 2, characterized in that, before the high-speed shared data sending entity on the wireless access network side sends the MBMS data packet to the user equipment side in a transmission mode of high-speed downlink packet access : The radio access network side notifies the user equipment: the relationship information between the physical resource of the MBMS data packet and the logical channel used for sending it; The physical layer on the user equipment side is configured according to the relationship information. 4. The method according to claim 1, wherein the step of sending the MBMS data packet to the user equipment side by the high-speed shared data sending entity at the wireless access network side in a high-speed downlink packet access transmission mode specifically includes : The high-speed shared data sending entity on the wireless access network side judges the type of the MBMS data packet; Different types of data packets are distinguished according to the MBMS level, and data packets of the same type and the same level are stored in corresponding queues of the same type and the same level; When the high-speed shared data sending entity on the wireless access network side determines that the data packets in the queue need to be retransmitted, add a sequence number; Send the data packets in the queue to the user equipment side. 5. The method according to claim 3, wherein the step of receiving the MBMS data packet by the high-speed shared data receiving entity at the user equipment side specifically comprises: After receiving the MBMS data packet, the high-speed shared data receiving entity on the user equipment side judges whether the MBMS data packet is an MCCH data packet or MTCH packet; When the high-speed shared data receiving entity on the user equipment side determines that the MCCH data packets and/or MTCH data packets need to be sorted, it sends the sorted MCCH data packets and/or MTCH data packets to the logical channel. 6. The method according to claim 3, wherein the relational information includes at least one of the following information: sending time information of the MBMS data packet, sending applicable channelization code, modulation mode, MBMS data packet size and subcarrier frequency. 7. A transmission system of broadcast/multicast service MBMS, is characterized in that, described system comprises: High-speed shared data sending unit: used to send MBMS data packets to the user equipment side in a high-speed downlink packet access transmission mode; the high-speed shared data sending unit is located at the radio access network side; A high-speed shared data receiving unit: configured to receive the MBMS data packet sent by the high-speed shared data sending unit, and the high-speed data receiving unit is located at the user equipment side. 8. The system according to claim 7, wherein the high-speed shared data sending unit specifically comprises: MBMS class queue allocation module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resource of the MBMS data packet and the logical channel used for sending; Make a distinction, and send data packets of the same class and the same level to the corresponding queue module of the same class and the same level; Level queue module: responsible for storing corresponding types of data packets according to level; Hybrid automatic retransmission module: used to add sequence numbers to the data packets and send them to the transmission format and physical resource allocation selection module when it is determined that the data packets stored in the one or more hierarchical queue modules need to be retransmitted; Transmission format and physical resource allocation selection module: Send the received data packet to the user equipment side through a predetermined transmission format and physical resource. 9. The system according to claim 7, wherein the high-speed shared data receiving unit comprises: Receiving module: responsible for receiving MBMS data packets; Rearrangement distribution module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resources for sending the MBMS data packet and the logical channel used for sending; when determining that the data packets need to be sorted, according to the data The type of the packet is sent to the corresponding rearrangement queue module; Rearranging queue module: responsible for sorting the received data packets according to the sequence numbers of the data packets. 10. system according to claim 9, is characterized in that, described high-speed shared data receiving unit also comprises: Decomposition module: responsible for removing the header of the MBMS data packet. 11. A communication device on the wireless access network side, characterized in that, comprising: MBMS class queue allocation module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resource of the MBMS data packet and the logical channel used for sending; Make a distinction, and send data packets of the same class and the same level to the corresponding queue module of the same class and the same level; Level queue module: responsible for storing corresponding types of data packets according to level; Hybrid automatic retransmission module: used to add sequence numbers to the data packets and send them to the transmission format and physical resource allocation selection module when it is determined that the data packets stored in the one or more hierarchical queue modules need to be retransmitted; Transmission format and physical resource allocation selection module: Send the received data packet to the user equipment side through a predetermined transmission format and physical resource. 12. A user equipment, characterized in that, comprising: Receiving module: responsible for receiving MBMS data packets; Rearrangement distribution module: responsible for judging the type of the MBMS data packet according to the relationship information between the physical resources for sending the MBMS data packet and the logical channel used for sending; when determining that the data packets need to be sorted, according to the data The type of the packet is sent to the corresponding rearrangement queue module; Rearranging queue module: responsible for sorting the received data packets according to the sequence numbers of the data packets. 13. The device according to claim 12, wherein the high-speed shared data receiving unit comprises: Decomposition module: responsible for removing the header of the MBMS data packet.

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