CN114095874A

CN114095874A - Multicast/broadcast service mode processing method, device and storage medium

Info

Publication number: CN114095874A
Application number: CN202010857138.9A
Authority: CN
Inventors: 张大钧
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-02-25
Anticipated expiration: 2040-08-24
Also published as: CN114095874B; WO2022042185A1

Abstract

The invention discloses a multicast/broadcast service mode processing method, equipment and a storage medium, wherein the method comprises the following steps: the UE in idle or in-active state receives a certain MBS service through a multicast channel; and when the UE judges that the receiving quality of the multicast channel can not meet the requirement, initiating an MBS mode conversion request to the NG-RAN. And the NG-RAN initiates a corresponding PTM-to-PTP configuration transition process for the UE according to the MBS mode transition request. By adopting the invention, the double consideration of the resource efficiency and the UE downlink receiving quality of the 5G MBS network can be satisfied.

Description

Multicast/broadcast service mode processing method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a storage medium for processing a multicast/broadcast service mode.

Background

Fig. 1 is a schematic diagram of an SC-PTM signaling flow of a 4G MBMS, taking an SC-PTM (Single cell point to multipoint) mode of a conventional 4G MBMS (Multimedia Broadcast/Multicast Service) as an example, as shown in the figure, the signaling flow is as follows:

in this procedure, the interested UE (User Equipment) only needs to read the SC-MCCH (Single cell Multicast Control Channel) information to obtain the scheduling information of the SC-MTCH (Single cell Multicast Traffic Channel), and can receive the MBMS service in Idle state or connected state.

Fig. 2 is a schematic view of a flow of receiving an MBMS service in a unicast mode, where, in the flow, the MBMS service can complete unicast transmission of the MBMS service only through a conventional unicast PDU (Protocol Data Unit) session establishment procedure.

The existing 4G MBMS technology has the disadvantages that the reception quality of the UE in idle or in-active state is not satisfied, and it is also impossible to adapt the MBS (multicast/broadcast service) service to the service transmission characteristics with higher performance requirements.

Disclosure of Invention

The invention provides a multicast/broadcast service mode processing method, equipment and a storage medium, which are used for solving the problems that the receiving quality of UE in idle or in-active (inactive) state can not be met, and the MBS service can not be suitable for the service transmission characteristic with higher performance requirement.

The invention provides the following technical scheme:

a MBS mode processing method comprises the following steps:

the UE in idle or in-active state receives a certain MBS service through a multicast channel;

and when the UE judges that the receiving quality of the multicast channel can not meet the requirement, initiating an MBS mode conversion request to the NG-RAN.

In implementation, the UE determines the multicast channel reception quality according to one or a combination of the following manners:

judging whether the RSRP or the RSRQ or the SINR exceeds a threshold value pre-configured by a network;

judging according to the sequential receiving result of the MRB PDCP PDU and a timer pre-configured by the network;

and judging according to the times of HARQ retransmission of the physical layer.

In implementation, the UE initiates an MBS mode transition request to the NG-RAN using an RRC message.

In implementation, initiating an MBS mode transition request to the NG-RAN includes:

the UE carries the MBS service list information expected to be converted through NAS signaling, and the MBS service list information informs the NR-RAN of the MBS service list information expected to be converted by the AMF.

A MBS mode processing method comprises the following steps:

the NG-RAN receives an MBS mode transition request sent by the UE in idle or in-active state;

and the NG-RAN initiates a corresponding PTM-to-PTP configuration transition process for the UE according to the MBS mode transition request.

In an implementation, the method further comprises the following steps: the NG-RAN sends one or the combination of the following parameters for judging the receiving quality of the multicast channel to the UE:

RSRP or RSRQ, or SINR exceeds a judgment threshold value of network pre-configuration;

a network preconfigured timer;

number of physical layer HARQ retransmissions.

In implementation, the NG-RAN receives an MBS mode transition request initiated by the UE using an RRC message.

In an implementation, the NG-RAN receiving the MBS mode transition request initiated by the UE includes:

and receiving MBS service list information notified by the AMF, wherein the MBS service list information is converted by the AMF according to the MBS service list information which is expected to be converted and carried by the UE through NAS signaling.

A UE for a UE in idle or in-active state, comprising:

a processor for reading the program in the memory, performing the following processes:

receiving a certain MBS service through a multicast channel;

when judging that the receiving quality of the multicast channel can not meet the requirement, initiating an MBS mode conversion request to the NG-RAN;

a transceiver for receiving and transmitting data under the control of the processor.

In implementation, the multicast channel reception quality is determined according to one or a combination of the following modes:

In implementation, the MBS mode transition request is initiated to the NG-RAN using RRC messages.

carrying the MBS service list information expected to be converted through NAS signaling, wherein the MBS service list information informs the NR-RAN of the MBS service list information expected to be converted by the AMF.

An MBS mode processing device, which is positioned at UE in idle or in-active state, comprises:

the UE receiving module is used for receiving a certain MBS service through a multicast channel;

and the UE request module is used for initiating an MBS mode conversion request to the NG-RAN when judging that the receiving quality of the multicast channel can not meet the requirement.

A NG-RAN comprising:

receiving an MBS mode conversion request sent by UE in idle or in-active state;

initiating a corresponding PTM to PTP configuration transition process aiming at the UE according to the MBS mode transition request;

In an implementation, the method further comprises the following steps: sending one or a combination of the following parameters for judging the multicast channel receiving quality to the UE:

a network preconfigured timer;

number of physical layer HARQ retransmissions.

In implementation, an MBS mode transition request initiated by the UE using an RRC message is received.

In implementation, receiving the MBS mode transition request initiated by the UE includes:

An MBS mode processing apparatus, comprising:

the NG-RAN receiving module is used for receiving an MBS mode conversion request sent by the UE in idle or in-active state;

and the NG-RAN processing module is used for initiating a corresponding PTM-to-PTP configuration transition process for the UE according to the MBS mode transition request.

A computer-readable storage medium storing a computer program for executing the MBS mode processing method described above.

The invention has the following beneficial effects:

in the technical scheme provided by the implementation of the invention, compared with the existing 4G MBMS technology, the UE in idle or in-active state is allowed to actively evaluate the receiving quality of MRB according to the related evaluation parameters configured by the network when receiving the 5G MBS service, and then whether to initiate a transmission mode conversion request is determined according to the receiving quality condition of the MRB, so that the double consideration of resource efficiency and UE downlink receiving quality of the 5G MBS network can be satisfied.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of SC-PTM signaling flow of 4G MBMS in the background art;

fig. 2 is a schematic flow chart of receiving MBMS service in unicast mode in the background art;

FIG. 3 is a schematic diagram illustrating an implementation flow of an MBS mode processing method at a UE side in an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating an implementation flow of an MBS mode processing method of an NG-RAN side in the embodiment of the present invention;

FIG. 5 is a diagram illustrating a base station structure according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a UE structure according to an embodiment of the present invention.

Detailed Description

The inventor notices in the process of invention that:

due to the existing 4G MBMS technology, the UE in idle or in-active state is not allowed to actively initiate the switching request of the MBS transmission mode, so that the receiving quality of the UE in idle or in-active state can not be met, and meanwhile, the MBS service can not be suitable for the service transmission characteristic with higher performance requirement.

The 5G NR (5G New air interface, 5G New Radio) as a New generation Radio access technology network should be able to meet the service transmission characteristics of higher performance requirements, for example: high reliability, and a large number of service demands for connecting users. In the technical scheme provided by the embodiment of the invention, when the UE in idle or in-active state is allowed to receive the 5G MBS service, whether a transmission mode conversion request is initiated or not can be determined according to the receiving quality of the MRB, so that the double consideration of the resource efficiency and the UE downlink receiving quality of the 5G MBS network can be satisfied.

The following describes embodiments of the present invention with reference to the drawings.

In the description process, the implementation of the UE and the NG-RAN side will be described separately, and then an example of the implementation of the two will be given to better understand the implementation of the scheme given in the embodiment of the present invention. Such an explanation does not mean that the two must be implemented cooperatively or separately, and actually, when the UE and the NG-RAN (Next Generation Radio Access Network; NG: Next Generation, Next Generation; RAN: Radio Access Network) are implemented separately, the UE and the NG-RAN will solve the problem separately, and when the two are used in combination, a better technical effect will be obtained.

Fig. 3 is a schematic diagram of an implementation flow of an MBS mode processing method at a UE side, as shown in the figure, including:

step 301, the UE in idle or in-active state receives a certain MBS service through a multicast channel;

step 302, when the UE determines that the receiving quality of the multicast channel cannot meet the requirement, initiating an MBS mode transition request to the NG-RAN.

Fig. 4 is a schematic diagram of an implementation flow of an MBS mode processing method on the NG-RAN side, as shown in the figure, including:

step 401, the NG-RAN receives an MBS mode conversion request sent by UE in idle or in-active state;

step 402, the NG-RAN initiates a corresponding PTM to PTP configuration transition process for the UE according to the MBS mode transition request.

Specifically, a UE in idle or in-active state is allowed to initiate an MBS mode transition request to the network side when it determines that the receiving quality of the multicast channel cannot meet the requirement, while receiving a certain MBS service through the multicast channel (e.g., MRB).

And the NG-RAN initiates a corresponding PTM-to-PTP configuration transition procedure for the UE based on this information.

In implementation, the UE may determine the multicast channel reception quality according to one or a combination of the following manners:

Correspondingly, the method further comprises the following steps: the NG-RAN sends one or the combination of the following parameters for judging the receiving quality of the multicast channel to the UE:

a network preconfigured timer;

number of physical layer HARQ retransmissions.

Specifically, the UE evaluates the reception quality of the MRB according to the following possible conditions:

judging whether the RSRP (Reference Signal Received Power) and the RSRQ (Reference Signal Received Quality) or the SINR (Signal to Interference plus Noise Ratio) exceed a threshold value pre-configured by the network or not; in specific implementation, the measured RSRP, RSRQ, or SINR may be smoothed to some extent;

according to the in-sequence reception result of MRB PDCP (Packet Data Convergence Protocol) PDU (Protocol Data Unit), and a network pre-configured timer, for example: if the out-of-order timer is overtime, indicating that packet loss occurs in data transmission;

in a specific implementation, the number of HARQ retransmissions of the physical layer may be counted in a unit time according to information such as the number of HARQ (Hybrid automatic repeat request) retransmissions of the physical layer.

Correspondingly, the NG-RAN receives an MBS mode conversion request initiated by the UE by adopting an RRC message.

Specifically, the UE notifies the network of the MBS mode transition by using an RRC (Radio Resource Control) message;

Correspondingly, the NG-RAN receives the MBS mode transition request initiated by the UE, including:

Optionally, the UE carries MBS service list information desired to be converted through NAS (Non Access Stratum) signaling, and then the AMF (Access and Mobility Management Function) notifies the NR-RAN of the MBS service list information desired to be converted.

The following is an example.

Example 1:

in this example the UE initiates an MBS reception mode transition request.

1: a UE in idle or in-active state is receiving a certain MBS Service in a certain cell through a Multicast channel (e.g. MRB (MBMS Radio Bearer; MBMS Multimedia Broadcast/Multicast Service).

2: and the UE evaluates the receiving quality of the MRB according to the prestored RSRP or RSRQ of the MBS service, or the SINR judgment threshold, or a preconfigured out-of-order timer.

The UE considers that the MRB reception quality cannot meet the requirements if the following conditions occur:

judging that the RSRP or RSRQ of MRB or SINR of the MRB exceeds a threshold value pre-configured by a network;

once receiving the out-of-order MRB PDCP PDU, starting a corresponding out-of-order timer, and if the out-of-order timer is overtime, marking that packet loss occurs in data transmission;

if the number of physical layer HARQ retransmissions exceeds a preconfigured number limit.

3: when the receiving quality of MRB can not meet the requirement, the UE initiates the MBS receiving mode conversion request process.

4: UE firstly triggers the RRC connection establishment process, and then sends an MBS service list which is expected to carry out MBS mode conversion to a network through a specific RRC message;

specifically, in the newly defined RRC message, for example: MBS mode request (MBS mode request), or reuse existing RRC messages, such as: UE association information message, including MBS service list information desired to transition.

Optionally, the UE carries MBS service list information expected to be converted through NAS signaling, and then the AMF initiates a PDU session setup (PDU session establishment) or modification (modification) process for the MBS service expected to be converted by the UE; and informs the NR-RAN of this MBS service list information desired to transition.

Specifically, the message may be a UE associated message reusing the NG interface, such as the above message, or a new MBS related message defined, such as: MBS session update or MBS information notification, etc.

5: based on this information, the NG-RAN initiates a corresponding PTM-to-PTP configuration transition procedure for the UE.

Specifically, the following steps are included, but not limited to:

the network side initiates an RRC reconfiguration message, where the message carries DRB (Data Radio Bearer) configuration information for a corresponding MBS session.

After receiving the reconfiguration message, the UE performs a DRB configuration procedure, i.e. the MRB to DRB transition is completed.

After the configuration is successful, the UE returns an RRC reconfiguration complete message.

6: the UE starts to receive the corresponding MBS service in a unicast mode.

Example 2:

in this example, the network configures corresponding parameters of the MBS.

1: for a specific MBS session, the network side decides to send its parameters related to UE reception quality determination to the UE, where the parameters include but are not limited to:

the RSRP or RSRQ of the MBS service, or the SINR decision threshold, or,

a pre-configured out-of-order timer, or;

the number of physical layer HARQ retransmissions, etc.

2: the network side adopts a system message transmission mode, for example: the parameters are sent to the UE using SIB (System Information Block) messages related to MBS or MCCH configuration messages related to MBS.

3: if the parameters related to the UE reception quality determination are changed, the network side also triggers the information change through the change of the system message or the modification of the MCCH.

4: the UE interested in receiving the MBS service, after receiving this information, will operate according to the description of the above example 1.

Based on the same inventive concept, the embodiments of the present invention further provide an NG-RAN, a user equipment, an MBS mode processing apparatus, and a computer-readable storage medium, and because the principles of solving the problems of these devices are similar to the MBS mode processing method, the implementation of these devices may refer to the implementation of the method, and the repeated details are not repeated.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 5 is a schematic structural diagram of a base station, as shown in the figure, the base station includes:

the processor 500, which is used to read the program in the memory 520, executes the following processes:

receiving an MBS mode conversion request sent by UE in idle or in-active state;

a transceiver 510 for receiving and transmitting data under the control of the processor 500.

a network preconfigured timer;

number of physical layer HARQ retransmissions.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

An MBS mode processing apparatus, comprising:

See in particular the implementation of the MBS mode processing method on the NG-RAN side.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

Fig. 6 is a schematic structural diagram of a UE, as shown, for a UE in idle or in-active state, the UE includes:

the processor 600, which is used to read the program in the memory 620, executes the following processes:

receiving a certain MBS service through a multicast channel;

a transceiver 610 for receiving and transmitting data under the control of the processor 600.

Where in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

See the implementation of the MBS mode processing method at the UE side.

In summary, in the technical solution provided by the present invention, a UE in idle or in-active state is allowed to initiate an MBS mode transition request to a network side when it determines that the receiving quality of the multicast channel cannot meet the requirement under the condition that the UE is receiving a certain MBS service through the multicast channel.

Based on this information, the NG-RAN initiates a corresponding PTM-to-PTP configuration transition procedure for the UE.

according to the in-sequence receiving result of the MRB PDCP PDU and a timer pre-configured by the network;

according to the information such as the number of HARQ retransmissions of the physical layer.

Specifically, the UE notifies the network of the desire to perform MBS mode transition using RRC message;

optionally, the UE carries MBS service list information desired to be converted through NAS signaling, and then the AMF notifies the NR-RAN of the MBS service list information desired to be converted.

Compared with the existing 4G MBMS technology, the UE in idle or in-active state is allowed to actively evaluate the receiving quality of the MRB according to the related evaluation parameters configured by the network when receiving the 5G MBS service, and then whether to initiate a transmission mode conversion request is determined according to the receiving quality condition of the MRB, so that the double consideration of the resource efficiency and the UE downlink receiving quality of the 5G MBS network is satisfied.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A multicast/broadcast service MBS mode processing method is characterized by comprising the following steps:

user Equipment (UE) in an idle or inactive in-active state receives a certain MBS service through a multicast channel;

and when the UE judges that the receiving quality of the multicast channel can not meet the requirement, initiating an MBS mode conversion request to the NG-RAN of the next generation of the wireless access network.

2. The method of claim 1, wherein the UE determines the multicast channel reception quality according to one or a combination of the following:

judging whether reference signal received power RSRP or reference signal received quality RSRQ or signal to interference and noise ratio SINR exceeds a threshold value pre-configured by a network or not;

judging according to the in-sequence receiving result of the multimedia broadcast \ multicast service radio bearer MRB packet data convergence protocol PDCP protocol data unit PDU and a timer pre-configured by the network;

and judging according to the times of HARQ retransmission of the physical layer hybrid automatic retransmission request.

3. The method of claim 1, wherein a UE initiates an MBS mode transition request to a NG-RAN using a radio resource control, RRC, message.

4. The method of claim 1, wherein initiating an MBS mode transition request to a NG-RAN comprises:

the UE carries the MBS business list information expected to be converted through the non-access stratum NAS signaling, and the MBS business list information informs the NR-RAN of the MBS business list information expected to be converted by the AMF.

5. A MBS mode processing method is characterized by comprising the following steps:

6. The method of claim 5, further comprising: the NG-RAN sends one or the combination of the following parameters for judging the receiving quality of the multicast channel to the UE:

a network preconfigured timer;

number of physical layer HARQ retransmissions.

7. The method of claim 5, wherein a NG-RAN receives an MBS mode transition request initiated by the UE with an RRC message.

8. The method of claim 5, wherein NG-RAN receives the UE-initiated MBS mode transition request, comprising:

9. A UE, for use in idle or in-active state, comprising:

receiving a certain MBS service through a multicast channel;

10. The UE of claim 9, wherein the multicast channel reception quality is determined according to one or a combination of the following:

11. The UE of claim 9, wherein the MBS mode transition request is initiated to the NG-RAN using an RRC message.

12. The UE of claim 9, wherein initiating an MBS mode transition request to a NG-RAN comprises:

13. An MBS mode processing apparatus, located at a UE in idle or in-active state, comprising:

14. A NG-RAN, comprising:

receiving an MBS mode conversion request sent by UE in idle or in-active state;

15. The NG-RAN of claim 14, further comprising: sending one or a combination of the following parameters for judging the multicast channel receiving quality to the UE:

a network preconfigured timer;

number of physical layer HARQ retransmissions.

16. The NG-RAN of claim 14, wherein the MBS mode transition request initiated by the UE with an RRC message is received.

17. The NG-RAN of claim 14, wherein receiving the UE-initiated MBS mode transition request comprises:

18. An MBS mode processing apparatus, comprising:

19. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 8.