CN114513756B

CN114513756B - Multicast broadcast service data receiving and indicating method, terminal and network equipment

Info

Publication number: CN114513756B
Application number: CN202011144470.7A
Authority: CN
Inventors: 谌丽; 张大钧; 周锐
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2023-04-04
Anticipated expiration: 2040-10-23
Also published as: CN114513756A

Abstract

The invention discloses a method for receiving and indicating multicast broadcast service data, a terminal and network equipment, wherein the method for receiving the multicast broadcast service data at the terminal side comprises the following steps: receiving an indication signaling sent by a network side; and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling. The scheme of the invention can realize that the transmission mode of the terminal for receiving the MBS service can be dynamically adjusted under the condition of not reconfiguring the MBS service bearer, thereby ensuring the data transmission.

Description

Multicast broadcast service data receiving and indicating method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a network device for receiving and indicating multicast broadcast service data.

Background

As shown in fig. 1, MBMS (multicast broadcast multimedia service) service has long existed in the 3g,4g technology. The 5G technology also introduces MBMS Services due to the demand of Broadcast Multicast Services, which are referred to as MBS (Multicast and Broadcast Services) in 5G. The MBS service of 5G is transmitted independently in each cell. Services that require broadcast-multicast transmission are mapped into broadcast-multicast channels for transmission to Multiple terminals, which may be referred to as Point-to-multipoint transmission (PTM). A terminal may configure PTM and PTP (Point to Point) transmissions simultaneously.

For a single terminal, if a base station configures unicast and multicast for the same MBS service, the terminal needs to receive the MBS service through unicast and multicast simultaneously according to the configuration, otherwise, the terminal needs to be reconfigured. This is disadvantageous to the terminal processing complexity and terminal power consumption, and in addition, if it is always necessary to receive unicast and multicast simultaneously, for a terminal that has no capability to receive unicast and multicast simultaneously, or a terminal that has insufficient capability to search for RNTI (radio network temporary identity) when the terminal parses dynamic scheduling, unicast and multicast cannot be configured simultaneously, and data transmission through reconfiguration between unicast and multicast may cause data delay and data interruption.

Disclosure of Invention

The embodiment of the invention provides a method for receiving and indicating multicast broadcast service data, a terminal and network equipment. The problems of data delay and data interruption which are possibly caused when the data transmission is carried out through the reconfiguration between the unicast and the multicast are solved.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:

a multicast broadcast service data receiving method applied to a terminal configured to receive multicast broadcast service data through multicast and broadcast transmission, the method comprising:

receiving an indication signaling sent by a network side;

and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

Optionally, receiving an indication signaling sent by a network side includes:

receiving a media access media MAC layer control unit MAC CE sent by a network side, wherein the MAC CE indicates a terminal to receive through a radio link control RLC channel of a multicast transmission side, or through a radio link control RLC channel of a unicast transmission side, or through the radio link control RLC channels of the unicast and multicast transmission sides at the same time, and if MBS data is received through two RLC entities, PDCP PDUs transmitted by different RLC entities can be the same or different.

Optionally, receiving an indication signaling sent by a network side includes:

and receiving a physical layer signaling carried by a physical layer control channel PDCCH sent by a network side, wherein the physical layer signaling indicates a terminal to suspend multicast transmission and reception or suspend unicast transmission and reception.

Optionally, suspending multicast transmission and reception, and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling, includes:

the PDCCH signaling is scrambled by using a specified Radio Network Temporary Identifier (RNTI), the PDCCH signaling scrambled by the RNTI is analyzed, if the analysis is successful, multicast PTM transmission is suspended, the specified RNTI is the RNTI specially used for indicating multicast suspension, and can be called as a multicast suspension RNTI which is different from a G-RNTI used for receiving multicast data; or,

the PDCCH signaling is scrambled by using an appointed Radio Network Temporary Identifier (RNTI), downlink Control Information (DCI) carried by the PDCCH signaling is obtained, and multicast transmission and reception of a preset target Multicast Radio Bearer (MRB) are suspended or recovered according to the DCI, wherein the preset target MRB is one or more than one MRB or all MRBs, and the appointed RNTI is a multicast suspended RNTI which is different from the G-RNTI; or,

a receiving network side allocates different specified Radio Network Temporary Identifiers (RNTIs) for different Multicast Radio Bearers (MRBs), and determines to suspend multicast transmission and reception of the corresponding MRBs according to the received RNTIs, namely a plurality of multicast suspension RNTIs are provided, and each multicast suspension RNTIs corresponds to one MRB; or,

after suspending the multicast transmission reception of the multicast radio bearer MRB, starting a timer, and restarting receiving the PTM transmission after the timer is overtime, wherein the timer can be configured by a network side through multicast signaling, broadcast signaling or unicast special signaling; or,

and receiving the multicast radio bearer MRB according to the new configuration of the network side, wherein the previously received physical layer signaling indicates failure.

Optionally, the PDCCH order for suspending multicast transmission reception is restricted to be transmitted and received in the multicast transmission physical layer resource set, that is, the multicast suspension RNTI is parsed only in the multicast transmission physical resource set, or the PDCCH order is restricted to be transmitted or received outside the multicast transmission resource set, that is, the multicast suspension RNTI is parsed outside the multicast transmission physical resource set.

Optionally, when suspending multicast reception, receiving a multicast broadcast service data packet according to a receiving manner of the multicast broadcast service data packet indicated by the indication signaling, including:

and scrambling the PDCCH signaling by using a multicast received group radio network temporary identifier (G-RNTI), analyzing the PDCCH signaling scrambled by using the G-RNTI, if the analysis is successful, acquiring Downlink Control Information (DCI) carried by the PDCCH signaling, and suspending or resuming the multicast transmission and reception according to an indication carried by the DCI for suspending or resuming the PTM transmission and reception, or according to an indication carried by the DCI for suspending the PTM transmission and reception of a preset target MRB.

Optionally, when suspending unicast reception, receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling, including:

the PDCCH signaling is scrambled by using a specified Radio Network Temporary Identifier (RNTI), the PDCCH signaling scrambled by the RNTI is analyzed, if the analysis is successful, unicast PTP transmission is suspended, the specified RNTI is the RNTI specially used for indicating unicast suspension, and can be called unicast suspension RNTI which is different from G-RNTI used for multicast data receiving and C-RNTI of a terminal; or,

scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), acquiring Downlink Control Information (DCI) carried by the PDCCH signaling, and suspending or recovering unicast transmission and reception of a preset target Multicast Radio Bearer (MRB) according to the DCI, wherein the preset target MRB is one or more MRBs or all MRBs, and the specified RNTI is the RNTI specially used for indicating unicast suspension; or,

a receiving network side allocates different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, and determines to suspend unicast transmission and reception of the corresponding MRBs according to the received RNTIs, namely a plurality of unicast suspension RNTIs are provided, and each unicast suspension RNTIs corresponds to one MRB; or,

after suspending the unicast transmission reception of the multicast radio bearer MRB, starting a timer, and restarting to receive PTP transmission after the timer is overtime, wherein the timer can be configured by a network side through multicast signaling, broadcast signaling or unicast special signaling; or,

Optionally, the PDCCH order scrambled by the assigned radio network temporary identifier RNTI is restricted to be transmitted and received in the multicast transmission physical layer resource set, that is, the unicast suspension RNTI is only parsed in the multicast transmission physical resource set, or the PDCCH order scrambled by the assigned radio network temporary identifier RNTI is restricted to be transmitted or received outside the multicast transmission physical resource set, that is, the unicast suspension RNTI is parsed outside the multicast transmission physical resource set.

Optionally, when suspending unicast reception, receiving a multicast broadcast service data packet according to a receiving manner of the multicast broadcast service data packet indicated by the indication signaling, including:

and the PDCCH signaling is scrambled by using a cell radio network temporary identifier (C-RNTI), the PDCCH signaling scrambled by using the C-RNTI is analyzed, if the analysis is successful, downlink Control Information (DCI) carried by the PDCCH signaling is obtained, and unicast transmission and reception are suspended according to an indication carried by the DCI for suspending PTP transmission and reception or according to an indication carried by the DCI for suspending PTP transmission and reception of a preset target MRB.

The embodiment of the invention also provides an indication method for receiving the multicast broadcast service data, which is applied to a network side and comprises the following steps:

sending an indication signaling to a terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions; the indication signaling indicates the receiving mode of the multicast broadcast service data packet.

Optionally, the sending the indication signaling to the terminal includes:

and sending a media access media MAC layer control unit MAC CE to the terminal, wherein the MAC CE instructs the terminal to control the RLC channel receiving through a radio link of a multicast transmission side, or controls the RLC channel receiving through a radio link of a unicast transmission side, or simultaneously controls the RLC channel receiving through radio links of the unicast and multicast transmission sides, if MBS data is received through two RLC entities, PDCP PDUs transmitted by different RLC entities can be the same or different.

Optionally, the sending the indication signaling to the terminal includes:

and sending a physical layer signaling carried by a physical layer control channel PDCCH to the terminal, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception.

Optionally, instructing the terminal to suspend receiving the multicast transmission includes one of:

configuring a designated Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of resolving the RNTI suspends multicast Packet Transfer (PTM) transmission after receiving a PDCCH command scrambled by using the RNTI, wherein the designated RNTI is the RNTI specially used for indicating multicast suspension, can be called the multicast suspension RNTI and is different from the G-RNTI used for receiving multicast data; or,

scrambling the PDCCH signaling by using an appointed Radio Network Temporary Identifier (RNTI), wherein the PDCCH signaling carries a downlink control message (DCI), the DCI indicates to suspend or recover multicast transmission and reception of a preset target Multicast Radio Bearer (MRB), the preset target MRB is one or more MRBs or all MRBs, and the appointed RNTI is the RNTI specially used for indicating multicast suspension; or,

allocating different designated radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, wherein the RNTIs indicate that the corresponding MRBs are suspended for multicast transmission and reception, namely a plurality of multicast suspension RNTIs are provided, and each multicast suspension RNTIs corresponds to one MRB; or,

the network side reconfigures the reception of the multicast radio bearer MRB, with the previous physical layer signaling indicating failure.

Optionally, the PDCCH order for suspending multicast transmission reception is restricted to be transmitted and received in the multicast transmission physical layer resource set, that is, the multicast suspension RNTI is parsed only in the multicast transmission physical resource set, or restricted to be transmitted or received outside the multicast transmission resource set, that is, the multicast suspension RNTI is parsed outside the multicast transmission physical resource set.

Optionally, instructing the terminal to suspend multicast reception includes:

the PDCCH signaling is scrambled by a multicast received group radio network temporary identifier (G-RNTI), the PDCCH signaling carries Downlink Control Information (DCI), and the DCI carries an indication for suspending or resuming the PTM transmission and reception, or the DCI carries an indication for suspending or resuming the PTM transmission and reception of a preset target MRB.

Optionally, instructing the terminal to suspend unicast reception includes:

configuring a specified Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of resolving the RNTI suspends unicast PTP transmission after receiving a PDCCH command scrambled by the RNTI, wherein the specified RNTI is the RNTI specially used for indicating unicast suspension, can be called unicast suspended RNTI and is different from a G-RNTI used for multicast data reception and a C-RNTI of the terminal; or,

the PDCCH signaling is scrambled by a designated Radio Network Temporary Identifier (RNTI), the PDCCH signaling carries Downlink Control Information (DCI), the DCI indicates to suspend or recover unicast transmission and reception of a preset target unicast radio bearer (MRB), the preset target MRB is one or more MRBs or all MRBs, and the designated RNTI is the RNTI specially used for indicating unicast suspension; or,

allocating different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, wherein the RNTIs indicate that unicast transmission and reception of the corresponding MRBs are suspended, namely a plurality of unicast suspended RNTIs are provided, and each corresponding MRB is provided with one MRB; or,

Optionally, the PDCCH order scrambled by the assigned radio network temporary identifier RNTI is restricted to be transmitted and received within the multicast transmission physical layer resource set, i.e. unicast suspension RNTI is parsed only within the multicast transmission physical resource set, or is restricted to be transmitted or received outside the multicast transmission resource set, i.e. unicast suspension RNTI is parsed only outside the multicast transmission physical resource set.

Optionally, instructing the terminal to suspend unicast reception, includes:

the PDCCH signaling is scrambled by a cell radio network temporary identifier C-RNTI, the PDCCH signaling carries downlink control information DCI, and the DCI carries an indication for suspending PTP transmission and reception, or the DCI carries an indication for suspending PTP transmission and reception of a preset target MRB.

An embodiment of the present invention further provides a terminal, including: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: receiving an indication signaling sent by a network side; and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

Optionally, receiving an indication signaling sent by a network side includes:

and receiving a media access media MAC layer control unit MAC CE sent by a network side, wherein the MAC CE instructs a terminal to receive through a Radio Link Control (RLC) channel of a multicast transmission side, or through a Radio Link Control (RLC) channel of a unicast transmission side, or through the Radio Link Control (RLC) channels of the unicast and multicast transmission sides at the same time.

Optionally, receiving an indication signaling sent by a network side includes:

and receiving a physical layer signaling carried by a physical layer control channel (PDCCH) sent by a network side, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception.

An embodiment of the present invention further provides a data transmission apparatus, which is applied to a terminal, and the apparatus includes:

the receiving and sending module is used for receiving an indication signaling sent by a network side; and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

An embodiment of the present invention further provides a network device, including: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: sending an indication signaling to a terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions; the indication signaling indicates the receiving mode of the multicast broadcast service data packet.

Optionally, the sending an indication signaling to the terminal includes: and sending a media access media MAC layer control unit MAC CE to the terminal, wherein the MAC CE instructs the terminal to receive through a Radio Link Control (RLC) channel of a multicast transmission side, or through a Radio Link Control (RLC) channel of a unicast transmission side, or through the Radio Link Control (RLC) channels of the unicast and multicast transmission sides at the same time.

Optionally, the sending the indication signaling to the terminal includes: and sending a physical layer signaling carried by a physical layer control channel (PDCCH) to the terminal, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception.

The embodiment of the invention also provides an indicating device for receiving the multicast broadcast service data, which is applied to network equipment, and the device comprises:

the receiving and sending module is used for sending an indication signaling to the terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions; the indication signaling indicates the receiving mode of the multicast broadcast service data packet.

Embodiments of the present invention also provide a processor-readable storage medium having stored thereon processor-executable instructions for causing the processor to perform the method as described above.

The embodiment of the invention has the beneficial effects that:

in the above embodiments of the present invention, the terminal configured with multicast and unicast transmission receives the indication signaling sent by the network side; receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling; therefore, the channel and the transmission mode of the terminal for receiving the MBS service can be dynamically adjusted under the condition of not reconfiguring the MBS service bearer, thereby ensuring the data transmission.

Drawings

Fig. 1 is a schematic diagram of MBS service transmission;

fig. 2 is a schematic diagram of a first protocol stack architecture in which a base station supports PTM and PTP simultaneously;

fig. 3 is a diagram illustrating a second protocol stack architecture in which a base station supports PTM and PTP simultaneously;

fig. 4 is a flowchart illustrating a method for receiving multicast broadcast service data at a terminal side according to the present invention;

FIG. 5 is a diagram illustrating a MAC CE format according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating another MAC CE format according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating another MAC CE format according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating a method for indicating multicast broadcast service data reception on a network side according to the present invention;

FIG. 9 is a block diagram of a terminal according to the present invention;

fig. 10 is a block diagram of a terminal-side apparatus according to the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 2 and fig. 3, two protocol stack architectures for supporting PTM and PTP simultaneously are provided for the base station.

In fig. 2, multicast and unicast are mapped to different radio bearers, and transmitted through different PDCP (packet convergence protocol) entities and different RLC entities.

In fig. 3, MBS service is mapped to one radio bearer MRB, and unicast and multicast are transmitted through different RLC (radio link control) entities and their corresponding logical channels by one PDCP entity. In fig. 2 and 3, unicast (PTP) and multicast (PTM) both use different physical channels.

As shown in fig. 4, an embodiment of the present invention provides a method for receiving multicast broadcast service data, which is applied to a terminal configured to receive multicast broadcast service data through multicast and broadcast transmission, and includes:

step 41, receiving an indication signaling sent by a network side;

and step 42, receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

In the embodiment of the invention, when the network side simultaneously configures multicast and unicast transmission of the MBS service for the terminal, the configuration of a protocol stack is not changed, and the transmission channel and the receiving mode for receiving the MBS service data packet are dynamically adjusted by the low-layer signaling dynamic adjustment terminal, so that the channel and the transmission mode for receiving the MBS service by the terminal can be dynamically adjusted by the indication signaling under the condition of not reconfiguring the MBS service bearer, thereby ensuring the data transmission.

In an alternative embodiment of the present invention, the step 41 may include:

and receiving a media access media MAC layer control unit MAC CE transmitted by a network side, wherein the MAC CE instructs a terminal to receive through a Radio Link Control (RLC) channel of a multicast transmission side, or through a Radio Link Control (RLC) channel of a unicast transmission side, or through the RLC channels of the unicast and multicast transmission sides at the same time.

In this embodiment, the network side (e.g. the base station) notifies the terminal to receive RLC channels (or logical channels, since each RLC channel corresponds to one logical channel, and is only described as an RLC channel hereinafter) of the MBS service through the MAC CE, and the indication content may be: receiving only through multicast RLC channels, or receiving only through unicast RLC channels, or receiving through both unicast and multicast RLC channels. The MAC CE may indicate for one or more MRBs.

In an alternative embodiment of the present invention, the step 41 may include:

In this embodiment, the network side may instruct the terminal to suspend unicast or multicast reception through a physical layer signaling carried by a physical layer control channel PDCCH.

Wherein, when suspending multicast transmission reception, the step 42 may comprise one of:

step 421, scrambling the PDCCH signaling by using an assigned Radio Network Temporary Identifier RNTI (Radio Network Temporary Identifier), analyzing the PDCCH signaling scrambled by using the RNTI, and suspending multicast PTM transmission if the analysis is successful;

in this embodiment, the network side allocates an RNTI for one or a group of terminals, and scrambles the PDCCH order with the RNTI to indicate that a terminal capable of resolving the RNTI does not receive multicast PTM transmission after receiving the PDCCH order scrambled with the RNTI. This RNTI may be referred to as a multicast pending RNTI.

Step 422, the PDCCH signaling is scrambled by using a specified radio network temporary identifier RNTI, a Downlink Control message DCI (Downlink Control Information) carried by the PDCCH signaling is obtained, and multicast transmission and reception of a preset target multicast radio bearer MRB is suspended or resumed according to the DCI, wherein the preset target MRB is one or more MRBs or all MRBs;

in this embodiment, the DCI carried by the PDCCH order may further carry an indication of which MRB to suspend or resume multicast transmission reception;

step 423, the receiving network side allocates different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, and determines to suspend the multicast transmission and reception of the corresponding MRBs according to the received RNTIs;

in this embodiment, the network side allocates different multicast suspension RNTIs to different MRBs, and the terminal distinguishes which MRB needs to be suspended for multicast transmission and reception according to the received multicast suspension RNTIs.

Step 424, after suspending the receiving of the multicast transmission of the multicast radio bearer MRB, starting a timer, and after the timer times out, restarting receiving the PTM transmission;

in this embodiment, the PTM transmission may be restarted after the timer expires by setting the timer.

Step 425, receiving the MRB according to the new configuration of the network side, where the previously received physical layer signaling indicates failure.

In this embodiment, after reconfiguring the MBS service, the network side receives the MBS service according to the new configuration, and the indication of the previously received physical layer signaling is invalid.

In an alternative embodiment of the present invention, the PDCCH order used to suspend reception of multicast transmissions is restricted to being transmitted and received within the set of multicast transmission physical layer resources or to being transmitted or received outside the set of multicast transmission resources.

In this embodiment, a PDCCH order carrying a multicast suspension RNTI is restricted to be transmitted and received in a multicast transmission physical layer resource set; or to restrict transmission or reception outside the set of multicast transmission resources; or may be transmitted and received on any downlink resource.

In an alternative embodiment of the present invention, when suspending multicast reception, the step 42 may include:

and 426, scrambling the PDCCH signaling by using the multicast-received group radio network temporary identifier G-RNTI, analyzing the PDCCH signaling scrambled by using the G-RNTI, if the analysis is successful, acquiring downlink control information DCI carried by the PDCCH signaling, and suspending or resuming the multicast transmission and reception according to an indication carried by the DCI for suspending or resuming the PTM transmission and reception, or according to an indication carried by the DCI for suspending the PTM transmission and reception of a preset target MRB.

In this embodiment, G-RNTI (Group RNTI) which multiplexes scheduling and allocates multicast transmission resources scrambles the PDCCH, carries an indication of which MRB's PTM transmission reception is suspended in DCI carried by the PDCCH, or further carries an indication of which MRB's PTM transmission reception is suspended.

In an alternative embodiment of the present invention, when suspending unicast reception, the step 42 may include one of the following:

step 511, scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), analyzing the PDCCH signaling scrambled by using the RNTI, and suspending unicast PTP transmission if the analysis is successful; or,

in this embodiment, a network side allocates an RNTI for one or a group of terminals, scrambles a PDCCH order with the RNTI, and is used to indicate that a terminal capable of resolving the RNTI does not receive unicast PTP transmission of an MBS service after receiving the PDCCH order scrambled with the RNTI. This RNTI may be referred to as a unicast pending RNTI.

Step 512, the PDCCH signaling is scrambled by using a specified radio network temporary identifier RNTI, a downlink control message DCI carried by the PDCCH signaling is acquired, unicast transmission and reception of a preset target multicast radio bearer MRB are suspended or resumed according to the DCI, and the preset target MRB is one or more MRBs or all MRBs;

in this embodiment, the DCI carried by the PDCCH order may further carry an indication of which MRB to suspend or resume unicast transmission reception.

Step 513, the receiving network side allocates different specified radio network temporary identifiers RNTI for different multicast radio bearers MRB, and determines to suspend unicast transmission and reception of the corresponding MRB according to the received RNTI;

in this embodiment, the network side allocates different unicast suspension RNTIs to different MRBs, and the terminal distinguishes which MRB needs to be suspended for unicast transmission and reception according to the received unicast suspension RNTI.

Step 514, after suspending the unicast transmission reception of the multicast radio bearer MRB, starting a timer, and restarting receiving the PTP transmission after the timer times out;

in this embodiment, a timer is set, and unicast transmission of the MBS service is resumed after the timer expires.

Step 515, receiving the multicast radio bearer MRB according to the new configuration of the network side, where the previously received physical layer signaling indicates failure.

In this embodiment, after reconfiguring the MBS service, the base station receives the MBS service according to the new configuration, and the indication of the previously received physical layer signaling is invalid.

In an optional embodiment of the present invention, the PDCCH order scrambled by the specified radio network temporary identity RNTI is restricted to be transmitted and received within the set of multicast transmission physical layer resources or is restricted to be transmitted or received outside the set of multicast transmission resources.

In this embodiment, a PDCCH order carrying a unicast suspension RNTI is restricted to be transmitted and received in a multicast transmission physical layer resource set; or to restrict transmission or reception outside a set of multicast transport physical layer resources; or may be transmitted and received on any downlink resource.

In an alternative embodiment of the present invention, when suspending unicast reception, the step 42 may include:

and 516, scrambling the PDCCH signaling by using a cell radio network temporary identifier (C-RNTI), analyzing the PDCCH signaling scrambled by using the C-RNTI, if the analysis is successful, acquiring Downlink Control Information (DCI) carried by the PDCCH signaling, and suspending unicast transmission and reception according to an indication of suspending PTP transmission and reception carried by the DCI or according to an indication of suspending PTP transmission and reception of a preset target MRB carried by the DCI.

In the embodiment, scheduling is performed through a scheduling command PDCCH carrying a terminal C-RNTI, a new DCI format is introduced, and the DCI carries an indication for suspending the PTP transmission and reception of the MBS service, or further carries an indication for suspending the PTP transmission and reception of which MRB.

In the above embodiment of the present invention, when the network side dynamically adjusts the terminal to receive the MBS service only through unicast, the network side can still send the MBS service data through PTM to be received by other terminals.

The following describes a specific implementation process of the above method with reference to specific embodiments:

example 1: the base station dynamically adjusts the RLC channel (logical channel) of the terminal receiving the MBS service: the protocol stack adopted to adjust between PTM and PTM + PTP is shown in fig. 3.

Embodiment 1 uses a MAC layer control command MAC CE to indicate whether the terminal receives the transmission of the MRB on RLC1 or simultaneously on RLC1+ RLC 2. Receiving the MRB transmission on RLC1 corresponds to receiving the MRB transmission by adopting PTM, and receiving the MRB transmission on RLC1 corresponds to receiving the MRB transmission by adopting PTP.

Fig. 5 and 6 are two MAC layer control command examples. In fig. 5, the MAC CE part indicates the configured MRB by using bitmap, and the bit corresponding to the MRB is set to 0, which indicates that the MRB only uses RLC1 for receiving, that is, only uses PTM for receiving, and does not use PTP for receiving; the bit corresponding to MRB is set to 1, indicating that the MRB simultaneously employs RLC1 and RLC2 reception, i.e., simultaneously employs PTM and PTP reception. (here, the bit is set to 0 or 1 is just an example, and the reverse is also possible, where 1 denotes RLC1 and 0 denotes RLC1+ RLC 2); in fig. 6, there is only one MAC subheader, which uses a specific LCID or (LCID + eLCID) for indicating that RLC2 is deactivated, i.e. a terminal receiving the MAC CE can only receive all MBS services using PTM.

The procedure of this example 1 includes:

and the base station side configures an MRB transmission protocol stack and parameters for the terminal. In the initial configuration, optionally, the active RLC may be configured, i.e., whether the terminal receives the MRB transmission only through RLC1 or simultaneously through RLC1+ RLC 2. The MAC layer control command as shown in fig. 5 or fig. 6 is transmitted. And according to the transmitted MAC layer control command indication, the terminal receiving the MAC CE does not deactivate MRB data of the RLC channel corresponding to the PTP through unicast scheduling and transmission.

And the terminal side receives the MRB transmission protocol stack and the parameter configuration of the base station side. And receiving the MAC layer control command sent by the base station side. And receiving MRB data transmission through PTM or PTM + PTP according to the configuration of the base station side and the MAC layer control command indication.

Example 2: the base station dynamically adjusts the RLC channel (logical channel) of the terminal receiving the MBS service: the protocol stack employed, adjusting between PTP and PTM + PTP, is shown in fig. 3. The MAC layer control command formats are shown in fig. 5 and 6, but the meanings of the MAC layer control commands are different.

In embodiment 2, in fig. 5, the MAC CE part indicates the configured MRB by using a bitmap, and the bit of the corresponding MRB is set to 0, which indicates that the MRB only uses RLC2 for reception, that is, only uses PTP for reception, and does not use PTM for reception; the bit corresponding to MRB is set to 1, indicating that the MRB simultaneously employs RLC1 and RLC2 reception, i.e., PTM and PTP reception. (here, the bit is set to 0 or 1 is just an example, and the reverse is also possible, where 1 denotes RLC2 and 0 denotes RLC1+ RLC 2); in fig. 6, there is only one MAC subheader, and the MAC subheader uses a specific LCID for indicating that RLC1 is deactivated, i.e. a terminal receiving the MAC CE can only receive all MBS services using PTP.

The procedure of this example 2 includes:

and the base station side configures an MRB transmission protocol stack and parameters for the terminal. In the initial configuration, optionally, the active RLC may be configured, i.e., whether the terminal receives the MRB transmission only through RLC2 or simultaneously through RLC1+ RLC 2. The MAC layer control command shown in fig. 5 or 6 including the above meaning is transmitted. And according to the sent MAC layer control command indication, aiming at the MRB of the RLC channel corresponding to the deactivated PTM, all the data of the MRB are scheduled and transmitted through unicast aiming at the terminal. From the base station side, the MRB may still be transmitted via PTM.

And the terminal side receives the MRB transmission protocol stack and the parameter configuration of the base station side. And receiving the MAC layer control command sent by the base station side. And receiving MRB data transmission through PTP or PTM + PTP according to the configuration of the base station side and the MAC layer control command indication.

Example 3: the base station dynamically adjusts the RLC channel (logical channel) of the terminal receiving the MBS service: the protocol stack architecture adopted by embodiment 3 is shown in fig. 3, which adjusts among PTP, PTM and PTM + PTP. The MAC layer control command includes an instruction to activate RLC1, RLC2, or RLC1+ RLC 2.

Fig. 7 is a MAC layer control command example of embodiment 3. The figure indicates only one MRB, and may be extended to indicate multiple MRBs or all MRBs (e.g., with the MRB ID set to a particular value indicating all MRBs). In the figure, the RLC1 and RLC2 bits are set to 0 to indicate that the RLC channel is not active, and set to 1 to indicate that the RLC channel is active.

The procedure of this example 3 includes:

and the base station side configures an MRB transmission protocol stack and parameters for the terminal. In the initial configuration, optionally, the active RLC may be configured, i.e. the terminal receives the MRB transmission only through RLC1, or RLC2, or RLC1+ RLC 2. A MAC layer control command as shown in fig. 7 (or a MAC CE of another format that can indicate the same meaning) is transmitted. And according to the sent MAC layer control command indication, aiming at the MRB of the RLC channel corresponding to the deactivated PTM, all the data of the MRB are scheduled and transmitted through unicast aiming at the terminal. And aiming at the MRB with the deactivated PTP corresponding RLC channel, the MRB data with the deactivated PTP corresponding RLC channel is not scheduled and transmitted by unicast for the terminal receiving the MAC CE.

Example 4: one implementation process for a base station to instruct a terminal to suspend multicast reception by using physical layer signaling carried by a PDCCH includes:

the base station side allocates a multicast pending RNTI to one or a group of terminals. When the base station determines that multicast transmission of a specific terminal needs to be suspended, the base station transmits a PDCCH scrambled with a multicast suspension RNTI to the terminal. The DCI carried by the PDCCH may further carry an indication of which MRB is suspended or resumed for multicast transmission reception; or, different multicast suspension RNTIs are allocated to different MRBs, and the terminal distinguishes which MRB needs to suspend multicast transmission and reception according to the received multicast suspension RNTIs. The PDCCH is restricted from being transmitted within a set of multicast transport physical layer resources; or refrain from transmitting outside the set of multicast transmission resources; or may be transmitted on any downlink resource. And the base station schedules and transmits the data of the MRB which suspends the multicast transmission and reception to the terminal which suspends the multicast transmission and reception through unicast PTP. The base station sends a command to the terminal to resume receiving the multicast transmission. Or starting a multicast transmission receiving timer, and after the timer is overtime, the terminal recovers the multicast transmission receiving.

The terminal side receives the multicast suspension RNTI assigned by the base station. Receiving a PDCCH scrambled with a multicast suspended RNTI, the PDCCH being restricted from being received within a multicast transmission physical layer resource set; or restrict reception outside the set of multicast transmission resources; or may be received on any downlink resource. For MRB suspending PTM transmission, the terminal only receives through PTP and does not receive and analyze G-RNTI and transmission of the MRB on PTM resources. The reception of the PTM transmission is resumed based on the base station indication, or a timer.

Example 5: another implementation process for the base station to instruct the terminal to suspend multicast reception by using physical layer signaling carried by the PDCCH includes:

the base station side configures the suspended multicast receiving indication parameters for the terminal, wherein the suspended multicast receiving indication parameters comprise physical layer signaling for enabling the suspended multicast and/or MRB indication for suspending the multicast transmission. The G-RNTI that multiplexes scheduling and allocates multicast transmission resources scrambles the PDCCH, carries an indication of which of the MRBs to suspend PTM transmission reception in the DCI carried by the PDCCH, or further carries an indication of which MRBs to suspend PTM transmission reception. And the base station schedules and transmits the data of the MRB which suspends the multicast transmission and reception to the terminal which suspends the multicast transmission and reception through unicast PTP. The base station sends a command to the terminal to resume receiving the multicast transmission. Or starting a multicast transmission receiving timer, and after the timer is overtime, the terminal recovers the multicast transmission receiving.

The terminal side receives a configuration of physical layer signaling that the base station enables suspending the multicast. And receiving the PDCCH which is transmitted by the base station and scrambled by the G-RNTI, and identifying the physical layer signaling through the DCI carried by the PDCCH to instruct the terminal to suspend multicast transmission and reception. For MRB suspending PTM transmission, the terminal only receives through PTP and does not receive and analyze G-RNTI and transmission of the MRB on PTM resources. The reception of the PTM transmission is resumed based on the base station indication, or a timer.

Example 6: one implementation process for a base station to instruct a terminal to suspend unicast reception by using physical layer signaling carried by a PDCCH includes:

and the base station side allocates the unicast suspended RNTI for one or a group of terminals. When the base station determines that it is necessary to suspend unicast transmission of a specific terminal, it transmits a PDCCH scrambled with a unicast suspension RNTI to the terminal. The DCI carried by the PDCCH may further carry an indication of which MRB to suspend or resume unicast transmission reception; or, different unicast pending RNTIs are allocated to different MRBs, and the terminal distinguishes which MRB needs to be suspended for unicast transmission and reception according to the received unicast pending RNTIs. The PDCCH is restricted from being transmitted within a set of multicast transport physical layer resources; or refrain from transmitting outside the set of multicast transmission resources; or may be transmitted on any downlink resource. And the base station does not send data scheduling and transmission corresponding to MRB to the terminal suspending unicast transmission and reception through unicast PTP. The base station sends a command to the terminal to resume receiving unicast transmissions. Or, starting a unicast transmission receiving timer of the MRB, and after the timer is overtime, the terminal recovers unicast transmission receiving.

The terminal side receives the unicast pending RNTI allocated by the base station. Receiving a PDCCH scrambled with a unicast suspended RNTI, the PDCCH being restricted from being received within a multicast transmission physical layer resource set; or restrict reception outside the set of multicast transmission resources; or may be received on any downlink resource. For MRBs suspending PTP transmissions, the terminal receives only through PTM. And recovering the PTP transmission reception of the MRB according to the base station indication or the timer.

Example 7: another implementation procedure for the base station to instruct the terminal to suspend unicast reception by using the physical layer signaling carried by the PDCCH includes:

the base station side configures the unicast receiving indication parameters of the suspended MRB for the terminal, and the unicast receiving indication parameters comprise physical layer signaling for starting the unicast receiving of the suspended MRB and/or MRB sequence numbers capable of suspending unicast transmission. And the PDCCH scrambled by the terminal C-RNTI carries an indication for suspending the PTP transmission and reception of the MBS service in the DCI carried by the PDCCH, or further carries an indication for suspending the PTP transmission and reception of which MRB. And the base station does not send data scheduling and transmission corresponding to MRB to the terminal suspending unicast transmission and reception through unicast PTP. The base station sends a command to the terminal to resume receiving unicast transmissions. Or, starting a unicast transmission receiving timer of the MRB, and after the timer is overtime, the terminal recovers unicast transmission receiving.

The terminal side receives the configuration of the physical layer signaling that the base station enables suspending the MRB unicast reception. And receiving the PDCCH scrambled by the C-RNTI by the base station, and identifying the physical layer signaling through the DCI carried by the PDCCH to instruct the terminal to suspend MRB unicast transmission and reception. For MRBs suspending PTP transmissions, the terminal receives only through PTM. And recovering the PTP transmission reception of the MRB according to the base station indication or the timer.

The above embodiment of the present invention can dynamically adjust the channel and transmission mode of the terminal for receiving the MBS service without reconfiguring the MBS service bearer. For example, when the channel environment of the terminal is poor, and the reliability of receiving the MBS service by using the PTM is poor, the base station adjusts the terminal to receive the MBS service only through PTP, and from the perspective of the base station, there is no need to schedule PTM transmission to a conservative MCS format because of a small number of terminals, thereby causing excessive resource overhead; from the terminal perspective, the monitoring of the PTM transmission channel is not needed, the RNTI of the PTM transmission is not needed to be analyzed and scheduled, and the receiving on the PTM special resource is not needed, so that the processing complexity of the terminal is reduced, the data processing and receiving speed of the terminal is improved, and the terminal can save electricity. On the other hand, if the channel quality of downlink reception of the terminal is good, the base station indicates that the terminal does not need to receive PTP transmission of MBS service, and the terminal does not need to receive downlink transmission beyond PTM transmission resources if the terminal does not have the requirement of receiving unicast service, so that the data processing overhead of the terminal can be reduced, and the terminal can save electricity.

As shown in fig. 8, an embodiment of the present invention further provides a method for indicating multicast broadcast service data reception, which is applied to a network side, where the method includes:

step 81, sending an indication signaling to the terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions; the indication signaling indicates the receiving mode of the multicast broadcast service data packet.

Optionally, the sending the indication signaling to the terminal includes:

and sending a media access media MAC layer control unit MAC CE to the terminal, wherein the MAC CE instructs the terminal to receive through a Radio Link Control (RLC) channel of a multicast transmission side, or through a Radio Link Control (RLC) channel of a unicast transmission side, or through the Radio Link Control (RLC) channels of the unicast and multicast transmission sides at the same time.

Optionally, the sending the indication signaling to the terminal includes:

configuring a designated Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of analyzing the RNTI suspends multicast PTM transmission after receiving a PDCCH command scrambled by the RNTI; or,

scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), wherein the PDCCH signaling carries a downlink control message (DCI), and the DCI indicates to suspend or recover multicast transmission and reception of a preset target Multicast Radio Bearer (MRB), and the preset target MRB is one or more MRBs or all MRBs; or,

allocating different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, wherein the RNTIs indicate to suspend multicast transmission and reception of the corresponding MRBs; or,

after suspending the multicast transmission reception of the multicast radio bearer MRB, starting a timer, and restarting receiving the PTM transmission after the timer is overtime; or,

and the network side reconfigures the receiving of the multicast radio bearer MRB, and the previous physical layer signaling indicates failure.

Optionally, the PDCCH order for suspending multicast transmission reception is restricted to be transmitted and received within the multicast transmission physical layer resource set, or restricted to be transmitted or received outside the multicast transmission resource set.

Optionally, instructing the terminal to suspend multicast reception includes:

the PDCCH signaling is scrambled by a multicast-received group radio network temporary identifier G-RNTI, the PDCCH signaling carries downlink control information DCI, and the DCI carries an indication for suspending or resuming the PTM transmission and reception, or the DCI carries an indication for suspending or resuming the PTM transmission and reception of a preset target MRB.

Optionally, instructing the terminal to suspend unicast reception, includes:

configuring a specified Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of analyzing the RNTI suspends unicast PTP transmission after receiving a PDCCH command scrambled by using the RNTI; or,

the PDCCH signaling is scrambled by a designated Radio Network Temporary Identifier (RNTI), the PDCCH signaling carries a downlink control message (DCI), the DCI indicates to suspend or resume unicast transmission and reception of a preset target unicast radio bearer (MRB), and the preset target MRB is one or more MRBs or all MRBs; or,

allocating different appointed radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, wherein the RNTIs indicate that unicast transmission and reception of the corresponding MRBs are suspended; or,

after suspending unicast transmission reception of the multicast radio bearer MRB, starting a timer, and restarting to receive PTP transmission after the timer is overtime; or,

Optionally, the PDCCH order scrambled by the specified radio network temporary identity RNTI is restricted to be transmitted and received within the multicast transmission physical layer resource set, or is restricted to be transmitted or received outside the multicast transmission resource set.

Optionally, instructing the terminal to suspend unicast reception, includes:

It should be noted that this method is an embodiment of the network side corresponding to the above method of the terminal side, and all implementations of the above method of the terminal side are applicable to this embodiment of the method, and the same technical effects can be achieved.

As shown in fig. 9, an embodiment of the present invention further provides a terminal 90, including: a transceiver 91, a processor 92, and a memory 93, wherein the memory 93 stores a program executable by the processor 92; the processor 92, when executing the program, implements: receiving an indication signaling sent by a network side; and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

Optionally, receiving an indication signaling sent by a network side includes:

the PDCCH signaling is scrambled by using an appointed Radio Network Temporary Identifier (RNTI), the PDCCH signaling scrambled by the RNTI is analyzed, and if the analysis is successful, multicast PTM transmission is suspended; or,

the PDCCH signaling is scrambled by using a designated Radio Network Temporary Identifier (RNTI), downlink Control Information (DCI) carried by the PDCCH signaling is obtained, and multicast transmission and reception of a preset target Multicast Radio Bearer (MRB) are suspended or recovered according to the DCI, wherein the preset target MRB is one or more MRBs or all MRBs; or,

a receiving network side allocates different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, and determines to suspend multicast transmission and reception of the corresponding MRBs according to the received RNTIs; or,

and scrambling the PDCCH signaling by using a multicast-received group radio network temporary identifier G-RNTI, analyzing the PDCCH signaling scrambled by using the G-RNTI, if the analysis is successful, acquiring downlink control information DCI carried by the PDCCH signaling, and suspending or resuming the multicast transmission and reception according to an indication carried by the DCI for suspending or resuming the PTM transmission and reception or according to an indication carried by the DCI for suspending the PTM transmission and reception of a preset target MRB.

the PDCCH signaling is scrambled by a designated Radio Network Temporary Identifier (RNTI), the PDCCH signaling scrambled by the RNTI is analyzed, and if the analysis is successful, unicast PTP transmission is suspended; or,

the PDCCH signaling is scrambled by using a specified Radio Network Temporary Identifier (RNTI), downlink Control Information (DCI) carried by the PDCCH signaling is obtained, unicast transmission and reception of a preset target Multicast Radio Bearer (MRB) are suspended or recovered according to the DCI, and the preset target MRB is one or more MRBs or all MRBs; or,

a receiving network side allocates different specified Radio Network Temporary Identifications (RNTIs) for different Multicast Radio Bearers (MRBs), and determines to suspend unicast transmission and reception of the corresponding MRBs according to the received RNTIs; or,

Optionally, the PDCCH order scrambled by the specified radio network temporary identity RNTI is restricted to be transmitted and received within the multicast transmission physical layer resource set, or restricted to be transmitted or received outside the multicast transmission resource set.

It should be noted that the terminal in this embodiment is a terminal corresponding to the method shown in fig. 4, and the implementation manners in the above embodiments are all applied to this embodiment, and the same technical effects can be achieved. It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 10, an embodiment of the present invention further provides a data transmission apparatus 100, which is applied to a terminal, where the apparatus 100 includes:

a transceiver module 101, configured to receive an indication signaling sent by a network side; and receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling.

Optionally, receiving an indication signaling sent by a network side includes:

scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), acquiring Downlink Control Information (DCI) carried by the PDCCH signaling, and suspending or recovering unicast transmission and reception of a preset target Multicast Radio Bearer (MRB) according to the DCI, wherein the preset target MRB is one or more MRBs or all MRBs; or,

a receiving network side allocates different specified radio network temporary identifiers RNTIs for different multicast radio bearers MRBs, and determines to suspend unicast transmission and reception of the corresponding MRBs according to the received RNTIs; or,

and the PDCCH signaling is scrambled by using a cell radio network temporary identifier (C-RNTI), the PDCCH signaling scrambled by the C-RNTI is analyzed, if the analysis is successful, downlink Control Information (DCI) carried by the PDCCH signaling is obtained, and the unicast transmission and reception are suspended according to an indication carried by the DCI for suspending PTP transmission and reception or according to an indication carried by the DCI for suspending PTP transmission and reception of a preset target MRB.

It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 4, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. The device further comprises a processing module 102, configured to process data received and transmitted by the transceiver module 101; it should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Optionally, the sending the indication signaling to the terminal includes:

allocating different appointed radio network temporary identifiers RNTIs for different multicast radio bearer MRBs, wherein the RNTIs indicate that the multicast transmission and reception of the corresponding MRBs are suspended; or,

after the multicast transmission and reception of the multicast radio bearer MRB are suspended, starting a timer, and restarting to receive the PTM transmission after the timer is overtime; or,

Optionally, instructing the terminal to suspend multicast reception includes:

Optionally, instructing the terminal to suspend unicast reception includes:

Optionally, the PDCCH order scrambled by the specified radio network temporary identifier RNTI is restricted to be transmitted and received within the multicast transmission physical layer resource set, or is restricted to be transmitted or received outside the multicast transmission resource set.

Optionally, instructing the terminal to suspend unicast reception, includes:

It should be noted that the terminal in this embodiment is a network device corresponding to the method shown in fig. 8, and the implementation manners in the above embodiments are all applied to this embodiment, and the same technical effects can be achieved. It should be noted that, the network device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted here.

Optionally, the sending an indication signaling to the terminal includes:

Optionally, the sending the indication signaling to the terminal includes:

scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), wherein the PDCCH signaling carries a downlink control message (DCI) which indicates to suspend or resume multicast transmission and reception of a preset target Multicast Radio Bearer (MRB), and the preset target MRB is one or more MRBs or all MRBs; or,

Optionally, instructing the terminal to suspend multicast reception includes:

Optionally, instructing the terminal to suspend unicast reception, includes:

configuring a specified Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of resolving the RNTI suspends unicast PTP transmission after receiving a PDCCH command scrambled by the RNTI; or,

Optionally, instructing the terminal to suspend unicast reception, includes:

The apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 8, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. The device also comprises a processing module used for processing the data received and transmitted by the receiving and transmitting module; it should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Embodiments of the present invention also provide a processor-readable storage medium having stored thereon processor-executable instructions for causing a processor to perform the method as described above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is also noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A multicast broadcast service data receiving method applied to a terminal configured to receive multicast broadcast service data through multicast and broadcast transmission and unicast transmission at the same time, the method comprising:

receiving an indication signaling sent by a network side;

receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling;

receiving an indication signaling sent by a network side, comprising:

receiving a physical layer signaling carried by a physical layer control channel (PDCCH) sent by a network side, wherein the physical layer signaling indicates a terminal to suspend multicast transmission and reception or suspend unicast transmission and reception;

when the multicast receiving is suspended, the method for receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling comprises the following steps:

2. The method for receiving multicast broadcast service data according to claim 1, wherein receiving an indication signaling sent by a network side further comprises:

3. The method for receiving multicast broadcast service data according to claim 1, wherein suspending multicast transmission reception and receiving multicast broadcast service data packets according to a receiving manner of the multicast broadcast service data packets indicated by the indication signaling, further comprising:

a receiving network side allocates different specified Radio Network Temporary Identifications (RNTIs) for different Multicast Radio Bearers (MRBs), and determines to suspend multicast transmission and reception of the corresponding MRBs according to the received RNTIs; or,

4. The multicast broadcast service data receiving method according to claim 1, wherein the PDCCH order for suspending multicast transmission reception is restricted to transmission and reception within the multicast transmission physical layer resource set or to transmission or reception outside the multicast transmission resource set.

5. The method for receiving multicast broadcast service data according to claim 1, wherein when suspending unicast reception, receiving a multicast broadcast service data packet according to a receiving mode of the multicast broadcast service data packet indicated by the indication signaling, further comprising:

scrambling the PDCCH signaling by using a specified Radio Network Temporary Identifier (RNTI), analyzing the PDCCH signaling scrambled by the RNTI, and suspending unicast PTP transmission if the analysis is successful; or,

6. The multicast broadcast service data receiving method according to claim 1, wherein the PDCCH order scrambled with the specified radio network temporary identity RNTI is restricted to transmission and reception within the multicast transmission physical layer resource set or to transmission or reception outside the multicast transmission resource set.

7. The method for receiving multicast broadcast service data according to claim 1, wherein when suspending unicast reception, receiving a multicast broadcast service data packet according to a receiving mode of the multicast broadcast service data packet indicated by the indication signaling, further comprising:

8. A method for indicating data reception of multicast broadcast services is applied to a network side, and the method comprises the following steps:

sending an indication signaling to a terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmission and unicast transmission simultaneously; the indication signaling indicates a receiving mode of the multicast broadcast service data packet;

sending an indication signaling to a terminal, comprising:

sending a physical layer signaling carried by a physical layer control channel PDCCH to a terminal, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception;

instructing the terminal to suspend multicast reception, comprising:

9. The method for indicating multicast broadcast service data reception according to claim 8, wherein the step of sending an indication signaling to the terminal further comprises:

10. The method for indicating multicast broadcast service data reception according to claim 8, wherein the terminal is instructed to suspend multicast transmission reception, further comprising one of:

configuring a specified Radio Network Temporary Identifier (RNTI) for a terminal, scrambling the PDCCH signaling by using the RNTI, and indicating that the terminal capable of resolving the RNTI suspends multicast (packet transfer protocol) transmission after receiving a PDCCH command scrambled by using the RNTI; or,

11. The method for indicating multicast broadcast service data reception according to claim 8,

the PDCCH order for suspending multicast transmission reception is restricted to transmitting and receiving within the set of multicast transmission physical layer resources or restricted to transmitting or receiving outside the set of multicast transmission resources.

12. The method for indicating multicast broadcast service data reception according to claim 8, wherein the terminal is instructed to suspend unicast reception, further comprising:

13. The method of claim 8, wherein the PDCCH order scrambled by the Radio Network Temporary Identity (RNTI) is restricted to transmitting and receiving within the multicast transmission physical layer resource set or outside the multicast transmission resource set.

14. The method for indicating reception of multicast broadcast service data according to claim 8, wherein the terminal is instructed to suspend unicast reception, further comprising:

the PDCCH signaling is scrambled by using a cell radio network temporary identifier (C-RNTI), the PDCCH signaling carries Downlink Control Information (DCI), and the indication carried by the DCI for suspending PTP transmission and reception is carried, or the DCI carries the indication for suspending PTP transmission and reception of a preset target MRB.

15. A terminal, comprising: a transceiver, a processor, and a memory, wherein a program executable by the processor is stored on the memory; the processor, when executing the program, implements: receiving an indication signaling sent by a network side; receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling;

receiving an indication signaling sent by a network side, comprising:

when suspending multicast reception, receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling, including:

16. The terminal according to claim 15, wherein the receiving of the indication signaling sent by the network side includes:

17. A data transmission apparatus, applied to a terminal, the apparatus comprising:

the receiving and sending module is used for receiving an indication signaling sent by a network side; receiving the multicast broadcast service data packet according to the receiving mode of the multicast broadcast service data packet indicated by the indication signaling;

the transceiver module is specifically configured to:

18. A network device, comprising: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: sending an indication signaling to a terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions and unicast transmissions simultaneously; the indication signaling indicates a receiving mode of the multicast broadcast service data packet;

sending an indication signaling to a terminal, comprising: sending a physical layer signaling carried by a physical layer control channel (PDCCH) to a terminal, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception;

instructing the terminal to suspend multicast reception, comprising:

19. The network device of claim 18, wherein sending the indication signaling to the terminal comprises: and sending a media access media MAC layer control unit MAC CE to the terminal, wherein the MAC CE instructs the terminal to receive through a Radio Link Control (RLC) channel of a multicast transmission side, or through a Radio Link Control (RLC) channel of a unicast transmission side, or through the RLC channels of the unicast and multicast transmission sides at the same time.

20. An apparatus for indicating data reception of multicast broadcast service, applied to a network device, the apparatus comprising:

the receiving and sending module is used for sending an indication signaling to the terminal; the terminal is configured to receive multicast broadcast service data via multicast and broadcast transmissions; the indication signaling indicates a receiving mode of the multicast broadcast service data packet;

the transceiver module is specifically configured to: sending a physical layer signaling carried by a physical layer control channel PDCCH to a terminal, wherein the physical layer signaling indicates the terminal to suspend multicast transmission and reception or suspend unicast transmission and reception;

instructing the terminal to suspend multicast reception, comprising:

21. A processor-readable storage medium having stored thereon processor-executable instructions for causing a processor to perform the method of any of claims 1 to 7 or the method of any of claims 8 to 14.