CN113347576B

CN113347576B - Method, device and storage medium for reporting MBMS auxiliary information

Info

Publication number: CN113347576B
Application number: CN202010140451.0A
Authority: CN
Inventors: 张大钧
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2022-04-08
Anticipated expiration: 2040-03-03
Also published as: CN113347576A

Abstract

The invention discloses a method, a device and a storage medium for reporting MBMS auxiliary information, which are used for solving the technical problem of low utilization rate of time-slot resources during the execution of MBMS service in the prior art. The method comprises the following steps: when a set trigger condition is reached, counting UE information corresponding to each multimedia broadcast multicast MBMS service which is broadcast by a base station and/or broadcast by a UE request base station, and obtaining a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information; then, reporting MBMS auxiliary information carrying a UE information list to a centralized network unit CU of the base station; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

Description

Method, device and storage medium for reporting MBMS auxiliary information

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a storage medium for reporting MBMS assistance information.

Background

In a wireless communication system, there are scenarios where multiple user terminals request the same downlink service data, for example, watching live broadcast of an event, which makes a network side need to send multiple copies of the same downlink data to multiple user terminals, thereby increasing the operation cost of the network side.

In the prior art, in order to reduce the operation cost and deepen the mutual beneficial cooperation relationship between the wireless communication system and the live broadcast source, a "multicast" function is proposed in the industry, in which a network side of a wireless cell is allowed to transmit a single piece of downlink data by using a specific wireless resource, and a plurality of user terminals respectively receive and decode the piece of downlink data at the same time, so as to achieve the purpose that the network transmits the downlink data to the plurality of user terminals by using a piece of wireless communication resource. In contrast, the network transmits a single downlink data packet via a specific radio resource, and the transmission scheme in which only one user terminal receives and decodes the downlink data packet is called "unicast".

For unicast downlink data, the network usually performs security protection on the downlink data in order to prevent other user terminals from acquiring the downlink data through air interception or data falsification. For example, data encryption, data integrity protection, packet sequence number check, and the like are performed on unicast downlink data, wherein the most important security protection is encryption, an encryption key is known only by the network side and a unicast target user terminal, and is unknown by other user terminals. Generally, security protection of Data is generally performed in a Packet Data Convergence Protocol (PDCP) layer in a Radio Access Network (RAN), for downlink Data, the PDCP layer on the Network side performs operations such as encryption and then delivers to a lower layer for transmission, and the lower layer of a user terminal receives air interface Data, then delivers the air interface Data to the PDCP layer on the user terminal side for decryption, and then delivers the air interface Data to an upper layer.

The multicast downstream data is different. Multicasting requires that all the target user terminals of the multicast data be able to decode the data correctly. Therefore, even if a user terminal using unicast is included in all the target user terminals of a certain multicast data, the network cannot encrypt the multicast data using the encryption key used in unicast communication with the user terminal, and must use another security mechanism.

That is to say, for the service data with the same content and needing to be sent to the same user terminal, the security processing at the network side is usually different for the two cases of unicast or multicast adopted transmission mode, and further, the data transmitted by the air interface is also different.

Considering the variability of the underlying transmission, for a certain user terminal that needs to receive a service that can be sent in a multicast form, the industry proposes a technology for flexibly switching the transmission mode of the data of the service between the network and the user terminal between a multicast mode and a unicast mode. A typical implementation of this technique is to configure two paths for the user terminal at the same time, one being a unicast path and the other being a multicast path. For the UE, only one copy of data can be received at any point in time, so only one path is active; for a network, there may be both unicast and multicast transmission modes.

For example, at a certain moment, a user terminal a requests a video service a from a network side, and since only one user terminal requests the video service a from the network side at this moment, the network side activates a unicast mode of the video service a for the user terminal a to perform data transmission; at another time point, the user terminal B, C, D also requests the network side for the video service a, and since there are multiple user terminals requesting the video service a from the network side at this time, the network side activates the multicast mode of the video service a for the user terminal B, C, D to perform data transmission, and since the encryption methods used for the same service data in the unicast mode and the multicast mode are different, the network side needs to provide the same service with the unicast mode and the multicast mode to perform data transmission of the service at the same time even in the same service. In practical applications, because the time for requesting the MBMS service by most user terminals is different, a plurality of user terminals will transmit MBMS service data in a unicast mode, thereby resulting in low utilization efficiency of air interface resources.

In view of this, how to improve the utilization rate of air interface resources when performing the MBMS service becomes a technical problem to be solved urgently.

Disclosure of Invention

The invention provides a method, a device and a storage medium for reporting MBMS auxiliary information, which are used for solving the technical problem of low utilization rate of time-slot resources when an MBMS service is executed in the prior art.

In a first aspect, to solve the above technical problem, an embodiment of the present invention provides a method for reporting MBMS assistance information, which is applied to a distributed network unit DU of a base station, and the technical solution of the method is as follows:

when a set trigger condition is reached, counting UE information corresponding to each multimedia broadcast multicast MBMS service broadcasted by the base station and/or requested by UE to be broadcasted by the base station, and obtaining a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information;

reporting the MBMS auxiliary information carrying the UE information list to a centralized network unit CU of the base station; wherein the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

Optionally, counting UE information corresponding to each MBMS service broadcasted by the base station or requested by the UE to be broadcasted by the base station, and obtaining a UE information list, including:

counting UE information corresponding to UE which cannot receive the corresponding MBMS in each MBMS to obtain a UE information list; or the like, or, alternatively,

and counting UE information corresponding to UE which can receive the corresponding MBMS service but cannot meet the user requirement in each MBMS service, and acquiring the UE information list.

Optionally, reporting the MBMS assistance information carrying the UE information list to a centralized network unit CU of the base station, including:

when the control plane CP and the user plane UP in the CU are separately deployed, reporting the MBMS auxiliary information to the CU through a non-UE-associated F1 process;

when the CP and the UP in the CU are deployed in the same physical entity, the MBMS auxiliary information reported by the CU is carried in a user plane signaling sent by the CU through F1-U.

Optionally, the setting a trigger condition includes:

receiving any one of request information of the CU, a set period, channel condition change and change of a working frequency range of the UE; wherein the request information is used to instruct the DU to report the MBMS assistance information.

Optionally, the transmission mode includes a unicast mode and a multicast mode.

In a second aspect, an embodiment of the present invention provides a method for reporting MBMS assistance information, where the method is applied to a centralized network unit CU of a base station, and the method includes:

receiving multimedia broadcast multicast MBMS auxiliary information which is reported by a distributed network unit DU of the base station and carries a UE information list; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service being received by the UE or requested by the UE, and one MBMS service in the UE information list corresponds to at least one UE information;

and evaluating the transmission mode configured by the MBMS corresponding to each UE in the UE information list based on the MBMS auxiliary information, and determining whether to reconfigure according to the evaluation result.

Optionally, before receiving the multimedia broadcast multicast MBMS assistance information carrying the UE information list reported by the distributed network unit DU of the base station, the method further includes:

and sending request information for indicating the report of the MBMS auxiliary information to the DU.

Optionally, receiving multimedia broadcast multicast MBMS assistance information that is reported by a distributed network unit DU of the base station and carries a UE information list includes:

when the control plane CP in the CU is separately deployed from the user plane UP, the MBMS auxiliary information reported by the DU is received through a non-UE-associated F1 process;

and when the CP and the UP in the CU are deployed in the same physical entity, receiving a user plane signaling sent by the DU through F1-U to obtain the MBMS auxiliary information reported by the DU.

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Optionally, based on the MBMS assistance information, evaluating a transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determining whether to reconfigure the transmission mode according to a result of the evaluation includes:

for any MBMS service corresponding to any UE, the following modes are adopted for reconfiguration:

if the transmission mode adopted by any MBMS service corresponding to any UE is a unicast mode, judging whether any MBMS service provides services for other UEs on the network side at the same time, and if so, reconfiguring the transmission mode of any MBMS service corresponding to any UE into a multicast mode; if not, not configuring;

if the transmission mode adopted by any MBMS service corresponding to any UE is a multicast mode, judging whether any MBMS service provides services for other UEs simultaneously, and if not, reconfiguring the transmission mode of any MBMS service corresponding to any UE into a unicast mode; if yes, not carrying out reconfiguration; the other UEs are other than the any UE and are receiving the data of the any MBMS service or requesting to receive the data of the any MBMS service.

In a third aspect, an embodiment of the present invention provides a reporting apparatus for MBMS auxiliary information, where the reporting apparatus is applied to a distributed network unit DU of a base station, and the apparatus includes:

a counting unit, configured to count UE information corresponding to each MBMS service broadcasted by the base station and/or requested by the UE to be broadcasted by the base station when a set trigger condition is reached, to obtain a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information;

a sending unit, configured to report, to a centralized network unit CU of the base station, MBMS assistance information carrying the UE information list; wherein the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

Optionally, the statistical unit is configured to:

Optionally, the sending unit is configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

In a fourth aspect, an embodiment of the present invention provides a method for reporting MBMS assistance information, where the method is applied to a centralized network unit CU of a base station, and the apparatus includes:

a receiving unit, configured to receive multimedia broadcast multicast MBMS auxiliary information carrying a UE information list reported by a distributed network unit DU of the base station; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service being received by the UE or requested by the UE, and one MBMS service in the UE information list corresponds to at least one UE information;

and the reconfiguration unit is used for evaluating the transmission mode configured by the MBMS corresponding to each UE in the UE information list based on the MBMS auxiliary information and determining whether to reconfigure the transmission mode according to the evaluation result.

Optionally, the reporting apparatus further includes a sending unit, configured to send, to a distributed network unit DU of the base station, request information indicating reporting of the MBMS assistance information before receiving the MBMS assistance information, which is reported by the DU and carries a UE information list.

Optionally, the receiving unit is configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Optionally, the reconfiguration unit is specifically configured to:

In a fifth aspect, an embodiment of the present invention further provides a device for reporting MBMS auxiliary information, where the device is applied to a distributed network unit DU of a base station, and the device includes: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes:

Optionally, the processor is specifically configured to:

Optionally, the processor is further configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

In a sixth aspect, an embodiment of the present invention further provides a device for reporting MBMS auxiliary information, where the device is applied to a distributed network unit DU of a base station, and the device includes: a processor, a memory, and a transceiver;

receiving multimedia broadcast multicast MBMS auxiliary information which is reported by a distributed network unit DU of the base station and carries a UE information list; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service that is being broadcast by the base station or that is requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service that is being received and/or requested by the UE, and one MBMS service in the UE information list corresponds to at least one UE information;

Optionally, the processor is further configured to:

before receiving multimedia broadcast multicast MBMS auxiliary information which is reported by a distributed network unit DU of the base station and carries a UE information list, sending request information for indicating the reporting of the MBMS auxiliary information to the DU.

Optionally, the processor is specifically configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Optionally, the processor is further configured to:

In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, including:

the computer readable storage medium stores computer instructions which, when executed on a computer, cause the computer to perform the method of the first aspect as described above.

Through the technical solutions in one or more of the above embodiments of the present invention, the embodiments of the present invention have at least the following technical effects:

in the embodiment provided by the invention, when a set trigger condition is reached, a DU counts UE information corresponding to each MBMS service which is being broadcast by a base station and/or is broadcast by a UE request base station, a UE information list is obtained, MBMS auxiliary information carrying the UE information list is reported to a CU of the base station, and the CU evaluates a transmission mode configured by the MBMS service corresponding to each UE in the UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information. Therefore, the MBMS transmission auxiliary information carrying the UE information list is transmitted between the network element (namely DU) executing the transmission mode and the network element (namely CU) judging the transmission mode conversion, which is beneficial to the CU to evaluate the transmission mode of each UE according to the MBMS auxiliary information so as to determine whether to change (namely reconfigure) the transmission mode of the MBMS corresponding to the UE, so that a plurality of UEs receiving the same MBMS data can use the same downlink data, thereby improving the utilization efficiency of air interface resources and ensuring the transmission reliability of the downlink service.

Drawings

Fig. 1 is a schematic diagram of an AS (access stratum) unicast-multicast dual path sub-scheme. (ii) a

FIG. 2 is a schematic diagram of a NAS (non-Access stratum) unicast-multicast dual path sub-scheme;

FIG. 3 is a schematic diagram of the structure of CU/DU separation in gNB;

fig. 4 is a flowchart of a method for reporting MBMS assistance information corresponding to a DU side according to an embodiment of the present invention;

fig. 5 is a flowchart of a method for reporting MBMS assistance information corresponding to a CU side according to an embodiment of the present invention;

fig. 6 is a first flowchart illustrating a reporting process of MBMS assistance information according to an embodiment of the present invention;

fig. 7 is a second flowchart illustrating a reporting process of MBMS assistance information according to an embodiment of the present invention;

fig. 8 is a third flow chart of reporting MBMS assistance information according to an embodiment of the present invention;

fig. 9 is a first structural diagram of a device for reporting MBMS assistance information corresponding to a DU side according to an embodiment of the present invention;

fig. 10 is a first schematic structural diagram of a device for reporting MBMS assistance information corresponding to a CU side according to an embodiment of the present invention;

fig. 11 is a structural diagram of a second apparatus for reporting MBMS assistance information corresponding to a DU side according to an embodiment of the present invention;

fig. 12 is a structural diagram of a second apparatus for reporting MBMS assistance information corresponding to a CU side according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a method, a device and a storage medium for reporting MBMS auxiliary information, which aim to solve the technical problem of low utilization rate of time-slot resources during the execution of MBMS in the prior art.

In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:

the method for reporting the MBMS auxiliary information comprises the following steps: when a set trigger condition is reached, counting UE information corresponding to each multimedia broadcast multicast MBMS service which is broadcast by a base station and/or broadcast by a UE request base station, and obtaining a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information; then, reporting MBMS auxiliary information carrying a UE information list to a centralized network unit CU of the base station; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

In the above scheme, when the set trigger condition is reached, the DU counts the UE information corresponding to each MBMS service being broadcast by the base station and/or being broadcast by the UE request base station, obtains the UE information list, and reports the MBMS assistance information carrying the UE information list to the CU of the base station, so that the CU evaluates the transmission mode configured for the MBMS service corresponding to each UE in the UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information. Therefore, the MBMS transmission auxiliary information carrying the UE information list is transmitted between the network element (namely DU) executing the transmission mode and the network element (namely CU) judging the transmission mode conversion, which is beneficial to the CU to evaluate the transmission mode of each UE according to the MBMS auxiliary information so as to determine whether to change (namely reconfigure) the transmission mode of the MBMS corresponding to the UE, so that a plurality of UEs receiving the same MBMS data can use the same downlink data, thereby improving the utilization efficiency of air interface resources and ensuring the transmission reliability of the downlink service.

In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the examples of the present invention are the detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the examples of the present invention may be combined with each other without conflict.

The research process of the inventors is briefly described so that those skilled in the art can fully understand the scheme provided by the present invention.

When data of an MBMS service proposed in the industry is transmitted between a network and a user terminal, a transmission mode switching technique is adopted, that is, two paths are configured for the user terminal at the same time, one of the paths is a unicast path, the other path is a multicast path, and for a UE, at most one of the two paths is active, and for the network side, even if the same MBMS service exists, two transmission modes of unicast and multicast may exist at the same time.

The inventor finds that, when a unicast path is activated for a certain service data capable of being transmitted in a multicast mode for a certain user terminal, the network must transmit a unicast data packet for the service for the user terminal over the air interface. In this case, the network may still transmit the multicast packet for the service over the air at the same time, because other user terminals may also need to receive the service, but the current active path of the service may be a multicast path (where there may even be user terminals that are not in a connected state, for which the network cannot determine the cell in which it currently resides, and thus each cell in which it may reside needs to perform multicast). In contrast, when a multicast path is activated for a certain service data that can be transmitted in a multicast mode for a certain user terminal, the network does not necessarily need to transmit a unicast packet for the user terminal and the service over the air interface, but must transmit a multicast packet for the service over the air interface.

In the 5G/New air interface (NR) system, there are two typical sub-schemes for this scheme: an Access Stratum (AS) unicast-multicast dual path sub-scheme, and a Non-Access stratum (NAS) unicast-multicast dual path sub-scheme.

For the AS (access stratum) unicast-multicast dual path sub-scheme, traffic data that can be transmitted in multicast mode has only one N3 transmission channel between the core network and the RAN. This transmission path is typically established between a User Plane Function (UPF) in the core network and the NR node gNB in the RAN, and the UPF may sometimes also be referred to as a multicast capable UPF, or multicast UPF. Please refer to fig. 1, which is a diagram of an AS (access stratum) unicast-multicast dual path sub-scheme.

In this implementation, the traffic Data stream that can be transmitted in multicast mode first reaches the multicast UPF in the 5G core network, and then the multicast UPF sends it to the multicast Service Data Adaptation Protocol (SDAP) layer of the gNB through the N3 multicast transmission channel. For each user terminal which needs to receive the service data in the unicast mode, the multicast SDAP layer copies the service data to a unicast PDCP instance associated with the user terminal, the unicast PDCP instance performs security protection by using a security key associated with the user terminal according to the same way of processing the common unicast service, then the service data is transmitted by a lower layer such as a unicast Radio Link Control (RLC), and finally the service data is transmitted through an air interface in the unicast mode. In addition, if there is a ue connected to the gNB and needing to receive the service data stream in a multicast mode, or there may be a ue residing in a cell under the gNB and needing to receive the service data stream in a multicast mode, the multicast SDAP layer should also send the service data to a lower layer (e.g., a multicast PDCP, a multicast RLC, etc., which may exist) for processing, and finally send the service data over the air interface in a multicast mode.

For NAS (non access stratum) unicast-multicast dual path sub-scheme, there may be multiple N3 transport channels for traffic data that can be transported in multicast mode between the 5G core network and the RAN. Fig. 2 is a schematic diagram of a NAS (non access stratum) unicast-multicast dual path sub-scheme.

In this implementation, a traffic data stream that can be transmitted in multicast mode first arrives at a multicast UPF in the 5G core network. For each user terminal which needs to receive the service data in the unicast mode, the multicast UPF copies a copy of the service data to a unicast SDAP instance associated with the user terminal through an N3 transmission channel associated with the user terminal, and then the unicast SDAP instance is handed over to a unicast PDCP instance, the unicast PDCP instance performs security protection by using a security key associated with the user terminal according to the same method of processing the common unicast service, and then the unicast PDCP instance performs transmission by a lower layer such as unicast RLC, and finally transmits the service data in the unicast mode through an air interface. In addition, for each gNB connected to the multicast UPF, if there is a ue connected to the gNB and needing to receive the service data stream in the multicast mode, or there may be a ue residing in a cell under the gNB and needing to receive the service data stream in the multicast mode, the multicast UPF layer should also send the service data to a lower layer (e.g., multicast PDCP, multicast RLC, etc., which may exist) of the gNB through an N3 multicast transmission channel for processing, and finally send the service data in the multicast mode over the air interface.

In general, a new air interface NR node gbb on the network side may be divided into a Central Unit (CU) and a Distributed Unit (DU). Please refer to fig. 3, which is a schematic structural diagram of CU/DU separation in the gNB, wherein a solid line represents a user data bearer.

As shown in fig. 3, a Radio Resource Control (RRC) layer and a PDCP layer are located in a CU, while an RLC layer, a Media Access Control (MAC) layer, a physical layer (PHY) layer and a Radio Frequency (RF) layer are located in a DU, and the CU and the DU are connected by an F1 interface. One CU can connect and manage a plurality of DUs. For unicast data, downlink user data first arrives at a CU through an N3 or S1-U interface, is encrypted and the like by a PDCP layer, then arrives at a DU through an F1-U interface, and is transmitted through an air interface after being processed by a physical layer and the like. This means that the unicast data transmitted on the F1-U interface must be encrypted and cannot be multiplexed by the multicast mechanism.

The gNB-CU can be further divided into a gNB-CU-CP (Control Plane) containing Control Plane functions and a gNB-CU-UP (User Plane) containing User Plane functions. In this case, for unicast data, downlink user data first arrives at CU-UP through N3 or S1-U interface, is subject to ciphering and the like by PDCP, and then arrives at DU through F1-U.

As can be seen from the above, in the prior art, when performing an MBMS service, a network side can only statically configure a downlink MBMS service as a transmission mode, for example: multicast mode or unicast mode, which results in inefficient utilization of air interface resources.

In order to solve the above problems, the present invention provides the following solutions, which will be described below from the DU side and CU side of the base station (gNB), respectively.

Referring to fig. 4, an embodiment of the present invention provides a method for reporting MBMS assistance information, which is applied to a distributed network unit DU of a base station, and the processing procedure of the method is as follows.

Step 401: when a set trigger condition is reached, counting UE information corresponding to each multimedia broadcast multicast MBMS service which is broadcast by a base station and/or broadcast by a UE request base station, and obtaining a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information.

The preset trigger condition of the DU for counting the UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station is as follows: receiving any one of request information of a CU, a set period, channel condition change and change of a working frequency band where UE is located; the request information is used to instruct the DU to report the MBMS assistance information.

For example, when the DU receives request information indicating that the DU reports MBMS assistance information sent by the CU, the DU determines that a preset trigger condition is reached, and counts UE information corresponding to each MBMS service that is being broadcast by the base station or that the UE requests the base station to broadcast.

Or, the DU counts the UE information corresponding to each MBMS service broadcasted by the base station or broadcasted by the UE request base station every 1 hour according to each set period; or, a certain MBMS service performs data transmission on channel 1, and when the channel quality of channel 1 deteriorates, the DU may also perform statistics on UE information corresponding to each MBMS service that is being broadcast by the base station or that the UE requests the base station to broadcast; or, the operating frequency band of the UE receiving the MBMS service from the base station where the DU is located changes, for example, the operating frequency band 1 changes to the operating frequency band 2, and at this time, the DU may also perform statistics on the UE information corresponding to each MBMS service that is being broadcast by the base station or that the UE requests the base station to broadcast.

After the DU determines that a preset trigger condition is reached, counting UE information corresponding to each MBMS service broadcasted by the base station and/or requested by the UE to be broadcasted by the base station, and obtaining a UE information list, where the two methods are as follows:

in the first way, the UE information corresponding to the UE that cannot receive the MBMS service in each MBMS service is counted to obtain a UE information list.

For example, there are 3 MBMS services in the base station: the MBMS service 1, the MBMS service 2, and the MBMS service 3 are running, 10 UEs receiving the MBMS service 1 are available, 2 of them cannot receive data of the MBMS service, and 3 UEs receiving the MBMS service 2 are available, each of them can receive data of the MBMS service 2, and one UE requesting the MBMS service 3 is available, but the UE cannot receive data of the MBMS service 3 because the UE is receiving other services (such as a telephone service). The DU in the base station counts the UE information that cannot receive the corresponding service in the 3 MBMS services, and obtains a UE information list, as shown in table 1.

TABLE 1

As can be seen from table 1, since all UEs receiving the MBMS service 2 can normally receive the service data, no UE information related to receiving the MBMS service 2 is recorded in the UE information list. However, in the UEs receiving MBMS service 1 and MBMS service 3, there are UEs that cannot receive the data of the corresponding service, so these UEs that cannot receive the service data are recorded in the UE information list, which allows the DU to timely report the UE information that requests the MBMS service but cannot receive the corresponding service to the CU.

And in the second mode, counting the UE information corresponding to the UE which can receive the corresponding MBMS but cannot meet the user requirement in the service quality Qos in each MBMS service, and obtaining a UE information list.

For example, in an MBMS service 4 in the base station, 10 UEs receive data of the MBMS service 4, where the quality of service Qos of 3 UEs cannot meet the user requirement, for example, when the UE1 receives the MBMS service 4, the packet loss is severe, when the UE2 and the UE3 receive the MBMS service 4, the delay is severe, and the like, then a UE information list obtained by DU statistics is shown in table 2.

TABLE 2

After the DU counts the UE information corresponding to each MBMS service broadcasted by the bs or requested by the UE from the bs to obtain the UE information list, step 402 can be executed.

Step 402: reporting MBMS auxiliary information carrying a UE information list to a centralized network unit CU of a base station; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

In the embodiment provided by the present invention, reporting MBMS assistance information carrying a UE information list to a centralized network unit CU of a base station includes:

when the control plane CP is deployed separately from the user plane UP in the CU, the MBMS assistance information is reported to the CU through a non-UE associated F1 procedure.

When CP and UP in CU are deployed in the same physical entity, the MBMS auxiliary information reported by CU is carried in CU sending user plane signaling through F1-U.

In the embodiments provided herein, the transmission mode includes a unicast mode and a multicast mode.

After the operation of the DU side is described, the operation of the CU will be described from the CU side.

Referring to fig. 5, an embodiment of the present invention provides a method for reporting MBMS assistance information, which is applied to a centralized network unit CU of a base station, and the method includes:

step 501: receiving multimedia broadcast multicast MBMS auxiliary information which is reported by a distributed network unit DU of a base station and carries a UE information list; when the set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service broadcasted by the base station or requested by the UE to be broadcasted by the base station, where the UE information includes a transmission mode configured by the MBMS service being received and/or requested by the UE, and one MBMS service in the UE information list corresponds to at least one UE information.

Before receiving the MBMS auxiliary information carrying the UE information list reported by the DU of the base station, the CU may further send request information indicating reporting of the MBMS auxiliary information to the DU, so that the DU may determine that a preset trigger condition is reached according to the request information, and further perform statistics on the UE information corresponding to each MBMS service being broadcast by the base station or being broadcast by the UE request base station, so as to send the MBMS auxiliary information carrying the UE information list to the CU.

In the embodiment provided by the present invention, the preset trigger condition may be not only the request information sent by the CU, but also any one of a set period, a change in channel condition, and a change in operating frequency band where the UE is located.

In the embodiment provided by the present invention, the process of obtaining the UE information list may participate in the description of the DU-side description, which is not described herein again.

In the embodiment provided by the present invention, the reporting of the MBMS assistance information carrying the UE information list by the distributed network unit DU of the receiving base station includes:

when the control plane CP in the CU is deployed separately from the user plane UP, the MBMS assistance information reported by the DU is received through a non-UE-associated F1 procedure.

When CP and UP in CU are deployed in the same physical entity, receiving user plane signaling sent by DU through F1-U to obtain MBMS auxiliary information reported by DU.

After the CU receives the MBMS assistance information, step 502 is performed.

Step 502: and based on the MBMS auxiliary information, evaluating the transmission mode configured by the MBMS corresponding to each UE in the UE information list, and determining whether to reconfigure according to the evaluation result.

In the embodiment provided by the present invention, based on the MBMS assistance information, the method of evaluating the transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determining whether to reconfigure the transmission mode according to the result of the evaluation includes:

if the transmission mode adopted by any MBMS service corresponding to any UE is a unicast mode, judging whether any MBMS service provides services for other UEs on the network side at the same time, and if so, reconfiguring the transmission mode of any MBMS service corresponding to any UE into a multicast mode; if not, no configuration is performed.

For example, the UE1 is currently receiving the MBMS service 1, wherein the transmission mode adopted by the base station 1 for the MBMS service 1 provided by the UE1 is the unicast mode, but the base station 1 also provides the MBMS service 1 for other UEs, and the transmission mode adopted by other UEs is the multicast mode.

After the CU in the base station 1 receives the MBMS assistance information sent by the DU, the CU evaluates the transmission mode configured for the MBMS service 1 corresponding to the UE1 according to the UE information list, and finds that the MBMS service 1 is configured for the UE1 as a unicast mode and configured for other UEs as a multicast mode, that is, the MBMS service 1 is configured with both unicast and multicast modes at the base station 1 (i.e., at the network side), and at this time, the CU reconfigures the transmission mode of the MBMS service 1 corresponding to the UE1 as a multicast mode, which can save resources occupied by the UE1 when using unicast, and does not affect the UE1 to receive data of the MBMS service 1, thereby effectively improving the resource utilization rate. If the base station provides the MBMS service 2 only for the UE1, it is not necessary to reconfigure the transmission mode of the MBMS service 1 corresponding to the UE 1.

If the transmission mode adopted by any MBMS service corresponding to any UE is a multicast mode, judging whether any MBMS service provides services for other UEs simultaneously, and if not, reconfiguring the transmission mode of any MBMS service corresponding to any UE into a unicast mode; if yes, not carrying out reconfiguration; the other UEs are other than the any UE and are receiving data of any MBMS service or requesting to receive data of any MBMS service.

For example, the UE2 is currently receiving the MBMS service 3, wherein the transmission mode adopted by the base station 1 for the MBMS service 3 provided by the UE2 is the multicast mode, but the base station 1 also provides the MBMS service 3 for other UEs, and the transmission mode adopted by other UEs is the multicast mode.

After the CU in the base station 1 receives the MBMS assistance information sent by the DU, the CU evaluates the transmission mode configured for the MBMS service 3 corresponding to the UE2 according to the UE information list, and finds that the MBMS service 3 configures a multicast mode for the UE2 and also configures a multicast mode for other UEs, that is, the MBMS service 3 is configured with a multicast mode at the base station 1 (i.e., at the network side), and at this time, the CU does not reconfigure the transmission mode of the MBMS service 3 corresponding to the UE 2. If the base station 1 does not provide the MBMS service 3 to other UEs, the transmission mode of the MBMS service 3 corresponding to the UE2 is reconfigured to be the unicast mode, so that resources of the multicast path can be saved, and the resource utilization rate is improved.

In order to make those skilled in the art fully understand the technical solutions, the following embodiments are provided for illustration.

In the first embodiment, when the CP and the UP in the CU are separately deployed, if the UE in the UE information list is a UE that cannot receive the MBMS service being broadcast and/or about to be broadcast (i.e., the MBMS service requested to be broadcast by the UE), please refer to fig. 6, which is a first flow chart for reporting the MBMS assistance information according to the first embodiment of the present invention.

Step 601: and when the set triggering condition is reached, the DU counts the UE information which cannot receive the MBMS service, and obtains a UE information list.

It should be noted that the MBMS service herein refers to an MBMS service capable of transmitting service data in a multicast manner, and the service data of the MBMS service is being and/or will be transmitted to the UE over the air interface through the gNB-CU-UP and the gNB-DU.

When the preset trigger condition is reached, the DU counts the UE information that cannot receive the MBMS service, and obtains a UE information list, as shown in table 3. The preset trigger condition may be, for example, any one of a set period, a channel condition change, and a change in a working frequency band where the UE is located when the DU receives request information indicating that the DU reports the MBMS assistance information from the CU. Table 3 is an exemplary UE information list, in which the UEs are UEs that cannot receive the MBMS service 1 being broadcast and UEs that cannot receive the MBMS service 2 to be broadcast.

TABLE 3

Step 602: and reporting the MBMS auxiliary information carrying the UE information list by the DU through a non-UE associated F1 process.

Step 603: and the CU evaluates the transmission mode configured by the MBMS corresponding to each UE in the UE information list based on the MBMS auxiliary information, and determines whether to reconfigure according to the evaluation result.

Specifically, the CP in the CU evaluates the transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determines whether to reconfigure according to the evaluation result.

If the evaluation result is that the reconfiguration is not needed, the operation is not executed; if the result of the evaluation is that reconfiguration is required, step 604-step 607 are executed.

Taking table 3 as an example, when the CP evaluates the transmission mode configured for the MBMS service 1 corresponding to the UE1, it is found that the MBMS service 1 also provides services for the UE2 and the UE3, and the adopted transmission mode is multicast, while the transmission mode adopted by the UE1 is unicast, and as a result of the evaluation, the transmission mode of the UE1 needs to be adjusted, and the transmission mode of the UE1 is adjusted to multicast.

When the CP evaluates the transmission modes configured for the MBMS service 1 corresponding to the UE2 and the UE3, it is found that the MBMS service 1 also provides services for other UEs, and the adopted transmission modes include unicast and multicast, while the transmission modes adopted by the UE2 and the UE3 are multicast, and the evaluation result is that the transmission modes of the UE2 and the UE3 do not need to be adjusted.

When the CP evaluates the transmission mode configured by the MBMS service 2 corresponding to the UE4, it is found that the MBMS service 2 does not provide a service to other UEs, but the transmission mode adopted by the UE4 is multicast, and the evaluation result indicates that the transmission mode of the UE4 needs to be adjusted, and the transmission mode of the UE4 is adjusted to be unicast.

Step 604: if the result of the evaluation is that the transmission mode of the UE needs to be reconfigured, the UE is reconfigured with a suitable transmission mode through an E1 request process managed by the UE.

Step 605: and the UP of the CU changes the transmission mode of the corresponding UE according to the reconfiguration result of the CP.

Step 606: the UP returns the UE-associated E1 response procedure to the CP.

Through steps 604 to 606, the CU transmits a new or changed MBMS service bearer context to the UP entity by using the UE-associated E1 procedure, and the UP entity returns a response message layer by layer after completing the corresponding configuration.

Step 607: if applicable, the CU instructs the UE to change the transmission mode of the MBMS service (this instruction is sent in step 607 via the DU).

In a second embodiment, when the CP and the UP in the CU are deployed, if the UE in the UE information list is receiving and/or about to receive the MBMS service but the transmission quality of the channel used by the UE is poor, please refer to fig. 7, which is a second flowchart for reporting the MBMS assistance information according to the embodiment of the present invention.

Step 701: when the set triggering condition is reached, the DU counts the UE information that is receiving the MBMS service but has poor transmission quality, and obtains a UE information list.

When the preset trigger condition is reached, the DU counts the UE information that is receiving or about to receive the MBMS service but has poor channel quality, and obtains a UE information list, as shown in table 4. The preset trigger condition may be, for example, any one of a set period, a channel condition change, and a change in a working frequency band where the UE is located when the DU receives request information indicating that the DU reports the MBMS assistance information from the CU. Table 4 is an exemplary UE information list in which the UEs are UEs that receive the MBMS service 1 being broadcast but have poor channel quality, and the MBMS service 2 to be broadcast but have poor channel quality.

TABLE 4

Step 702: and reporting the MBMS auxiliary information carrying the UE information list by the DU through a non-UE associated F1 process.

Step 703: and the CU evaluates the transmission mode configured by the MBMS corresponding to each UE in the UE information list based on the MBMS auxiliary information, and determines whether to reconfigure according to the evaluation result.

If the evaluation result is that the reconfiguration is not needed, the operation is not executed; if the result of the evaluation is that reconfiguration is required, step 704-step 707 are executed.

Taking table 4 as an example, when the CP evaluates the transmission modes configured for the MBMS service 3 corresponding to the UE1, the UE2, and the UE3, respectively, it is found that the MBMS service 3 provides unicast service for the UE1, the UE2, and the UE3, and the evaluation result indicates that the transmission modes of the UE1, the UE2, and the UE3 need to be adjusted, and all the transmission modes of the UE1, the UE2, and the UE3 are adjusted to be multicast.

When the CP evaluates the transmission mode configured by the MBMS service 4 corresponding to the UE4, it is found that the MBMS service 4 does not provide a service to other UEs, but the transmission mode adopted by the UE4 is multicast, and the evaluation result indicates that the transmission mode of the UE4 needs to be adjusted, and the transmission mode of the UE4 is adjusted to be unicast.

Step 704: if the result of the evaluation is that the transmission mode of the UE needs to be reconfigured, the UE is reconfigured with a suitable transmission mode through an E1 request process managed by the UE.

Step 705: and the UP of the CU changes the transmission mode of the corresponding UE according to the reconfiguration result of the CP.

Step 706: the UP returns the UE-associated E1 response procedure to the CP.

Through steps 704 to 706, the CU transmits a new or changed MBMS service bearer context to the UP entity by using the UE-associated E1 procedure, and the UP entity returns a response message layer by layer after completing the corresponding configuration.

Step 707: if applicable, the CU instructs the UE to change the transmission mode of the MBMS service (this instruction is sent in step 707 via the DU).

In a third embodiment, when the CP and the UP in the CU are deployed in the same physical entity, the UE in the UE information list is receiving the MBMS service, but the transmission quality of the channel is poor, please refer to fig. 8, which is a third flow chart for reporting the MBMS assistance information according to the embodiment of the present invention.

Step 801: and when the set triggering condition is reached, the DU counts the UE information with poor transmission quality of the receiving MBMS service list to obtain a UE information list.

When the preset trigger condition is reached, the DU counts the UE information with poor quality of the single channel receiving or about to receive the MBMS service, and obtains a UE information list, as shown in table 5. The preset trigger condition may be, for example, any one of a set period, a channel condition change, and a change in a working frequency band where the UE is located when the DU receives request information indicating that the DU reports the MBMS assistance information from the CU. Table 5 is an exemplary UE information list in which the UE is the MBMS service 1 being broadcast but the QoS of the UE cannot satisfy the user requirement, and the UE of the MBMS service 2 to be broadcast but the QoS of the UE cannot satisfy the user requirement.

TABLE 5

Step 802: and reporting the MBMS auxiliary information carrying the UE information list by the DU through a user plane signaling of F1-U.

Step 803: and the CU evaluates the transmission mode configured by the MBMS corresponding to each UE in the UE information list based on the MBMS auxiliary information, and determines whether to reconfigure according to the evaluation result.

Specifically, the UP in the CU evaluates the transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determines whether to reconfigure according to the evaluation result.

If the evaluation result is that the reconfiguration is not needed, the operation is not executed; if the result of the evaluation is that reconfiguration is required, step 804 is performed.

Taking table 5 as an example, when the UP evaluates the transmission modes configured for the MBMS service 1 corresponding to the UE1 and the UE2, respectively, it is found that the MBMS service 1 also provides a service for the UE3, and the adopted transmission mode is multicast, while the transmission modes adopted by the UE1 and the UE2 are unicast, and as a result of the evaluation, the transmission modes of the UE1 and the UE2 need to be adjusted, and the transmission modes of the UE1 and the UE2 are adjusted to multicast.

When the UP evaluates the transmission mode configured by the MBMS service 1 corresponding to the UE3, it is found that the MBMS service 1 also provides services for other UEs, and the adopted transmission mode is unicast, while the adopted transmission mode of the UE3 is multicast, and the evaluation result is that the transmission mode of the UE3 does not need to be adjusted.

When the CP evaluates the transmission mode configured by the MBMS service 2 corresponding to the UE4, it is found that the MBMS service 2 does not provide a service to other UEs, but the transmission mode adopted by the UE4 is unicast, and the evaluation result is that the transmission mode of the UE4 does not need to be adjusted.

Step 804: and if the evaluation result is that the transmission mode of the UE needs to be reconfigured, changing the transmission mode.

The subsequent processing is similar to the previous step 705-707, and will not be described again.

Based on the same inventive concept, an embodiment of the present invention provides a device for reporting MBMS auxiliary information, which is applied to a distributed network unit DU of a base station, and a specific implementation of a method for reporting MBMS auxiliary information of the device may refer to the description in the method embodiment, and repeated details are not repeated, please refer to fig. 9, where the device includes:

a counting unit 901, configured to count UE information corresponding to each MBMS service broadcasted by the base station and/or requested by the UE to be broadcasted by the base station when a set trigger condition is reached, so as to obtain a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, and one MBMS in the UE information list at least corresponds to one UE information;

a sending unit 902, configured to report, to a centralized network unit CU of the base station, MBMS assistance information carrying the UE information list; wherein the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list.

Optionally, the statistical unit 901 is configured to:

Optionally, the sending unit 902 is configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Based on the same inventive concept, an embodiment of the present invention provides a method for reporting MBMS assistance information, which is applied to a centralized network unit CU of a base station, and a specific implementation of the method for reporting MBMS assistance information of the apparatus may refer to the description in the method embodiment, and repeated details are not repeated, referring to fig. 10, where the apparatus includes:

a receiving unit 1001, configured to receive multimedia broadcast multicast MBMS assistance information that is reported by a distributed network unit DU of the base station and carries a UE information list; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service being received by the UE or requested by the UE, and one MBMS service in the UE information list corresponds to at least one UE information;

a reconfiguration unit 1002, configured to evaluate, based on the MBMS assistance information, a transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determine whether to reconfigure the transmission mode according to an evaluation result.

Optionally, the reporting apparatus further includes a sending unit 1003, configured to send, to a distributed network unit DU of the base station, request information indicating reporting of the MBMS assistance information before receiving the MBMS assistance information, which is reported by the DU and carries a UE information list.

Optionally, the receiving unit 1001 is configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Optionally, the reconfiguring unit 1002 is specifically configured to:

As shown in fig. 11, a device for reporting MBMS assistance information according to an embodiment of the present invention is applied to a distributed network unit DU of a base station, and the device includes: a processor 1101, a memory 1102, and a transceiver 1103;

the processor 1101 is configured to read the program in the memory 1102 and execute the following processes:

Optionally, the processor 1101 is specifically configured to:

and counting UE information corresponding to the UE which can receive the corresponding MBMS service but has a channel quality index CQI smaller than a set threshold value in each MBMS service to obtain the UE information list.

Optionally, the processor 1101 is further configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 may store data used by the processor 1101 in performing operations. The transceiver 1103 is used for receiving and transmitting data under the control of the processor 1101.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1101, and various circuits of memory, represented by memory 1102, 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 processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 may store data used by the processor 1101 in performing operations.

The process disclosed by the embodiment of the invention can be applied to the processor 1101, or can be implemented by the processor 1101. In implementation, the steps of the signal processing flow may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1101. The processor 1101 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be embodied directly in a hardware processor, or in a combination of hardware and software modules within the processor 1101. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and completes the steps of the signal processing flow in conjunction with the hardware thereof.

As shown in fig. 12, an apparatus for reporting MBMS assistance information according to an embodiment of the present invention is applied to a distributed network unit DU of a base station, and the apparatus includes: a processor 1201, a memory 1202, and a transceiver 1203;

the processor 1201 is configured to read a program in the memory 1202 and execute the following processes:

Optionally, the processor 1201 is further configured to:

Optionally, the processor 1201 is specifically configured to:

Optionally, the setting a trigger condition includes:

Optionally, the transmission mode includes a unicast mode and a multicast mode.

Optionally, the processor 1201 is further configured to:

The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1202 may store data used by the processor 1202 in performing operations. The transceiver 1203 is configured to receive and transmit data under the control of the processor 1201.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1201, and various circuits, represented by the memory 1202, 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 processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1202 may store data used by the processor 1201 in performing operations.

The process disclosed by the embodiment of the invention can be applied to the processor 1201, or can be implemented by the processor 1201. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in a processor. The processor 1201 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor 1201. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1202, and the processor 1201 reads information in the memory 1202 and completes the steps of the signal processing flow in conjunction with hardware thereof.

Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium, including:

the computer-readable storage medium stores computer instructions, which when executed on a computer, cause the computer to execute the method for reporting MBMS assistance information as described above.

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, embodiments of 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, embodiments of 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, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are 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 method for reporting MBMS auxiliary information is applied to a distributed network unit DU of a base station, and is characterized by comprising the following steps:

when a set trigger condition is reached, counting UE information corresponding to each multimedia broadcast multicast MBMS service broadcasted by the base station and/or requested by UE to be broadcasted by the base station, and obtaining a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, one MBMS in the UE information list at least corresponds to one UE information, and the transmission mode comprises a unicast mode and a multicast mode;

reporting the MBMS auxiliary information carrying the UE information list to a centralized network unit CU of the base station; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list, so that the CU determines whether to reconfigure the transmission mode according to an evaluation result.

2. The reporting method of claim 1, wherein counting UE information corresponding to each MBMS service broadcasted by the base station or requested by the UE to be broadcasted by the base station, and obtaining a UE information list comprises:

3. The reporting method of claim 1, wherein reporting the MBMS assistance information carrying the UE information list to a centralized network element CU of the base station comprises:

4. A reporting method according to any one of claims 1 to 3, wherein the setting of the trigger condition includes:

5. A method for reporting MBMS auxiliary information is applied to a centralized network unit CU of a base station, and is characterized by comprising the following steps:

receiving multimedia broadcast multicast MBMS auxiliary information which is reported by a distributed network unit DU of the base station and carries a UE information list; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service being received by the UE or requested by the UE, one MBMS service in the UE information list corresponds to at least one UE information, and the transmission mode includes a unicast mode and a multicast mode;

6. The reporting method of claim 5, wherein before receiving multimedia broadcast multicast MBMS assistance information carrying a UE information list reported by a distributed network unit DU of the base station, the method further comprises:

7. The reporting method of claim 5, wherein receiving the multimedia broadcast multicast MBMS assistance information carried with the UE information list reported by the distributed network unit DU of the base station comprises:

8. A reporting method according to any one of claims 5 to 7, wherein the setting of the trigger condition includes:

9. The reporting method of claim 5, wherein the transmission mode comprises a unicast mode and a multicast mode.

10. The reporting method of claim 9, wherein the evaluating the transmission mode configured by the MBMS service corresponding to each UE in the UE information list based on the MBMS assistance information, and determining whether to perform reconfiguration according to an evaluation result includes:

11. A device for reporting MBMS auxiliary information is applied to a distributed network unit DU of a base station, and is characterized by comprising:

a counting unit, configured to count UE information corresponding to each MBMS service broadcasted by the base station and/or requested by the UE to be broadcasted by the base station when a set trigger condition is reached, to obtain a UE information list; the UE information comprises a transmission mode configured by the MBMS which is being received or requested by the UE, one MBMS in the UE information list at least corresponds to one UE information, and the transmission mode comprises a unicast mode and a multicast mode;

a sending unit, configured to report, to a centralized network unit CU of the base station, MBMS assistance information carrying the UE information list; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list, so that the CU determines whether to reconfigure the transmission mode according to an evaluation result.

12. An apparatus for reporting MBMS assistance information, applied to a centralized network unit CU of a base station, includes:

a receiving unit, configured to receive multimedia broadcast multicast MBMS auxiliary information carrying a UE information list reported by a distributed network unit DU of the base station; when a set trigger condition is reached, the UE information list is obtained by counting, by the DU, UE information corresponding to each MBMS service being broadcast by the base station and/or requested by the UE to be broadcast by the base station, where the UE information includes a transmission mode configured by the MBMS service being received by the UE or requested by the UE, one MBMS service in the UE information list corresponds to at least one UE information, and the transmission mode includes a unicast mode and a multicast mode;

13. A device for reporting MBMS auxiliary information is applied to a distributed network unit (DU) of a base station, and is characterized in that the device comprises: a processor, a memory, and a transceiver;

reporting the MBMS auxiliary information carrying the UE information list to a centralized network unit CU of the base station; the MBMS assistance information is used to instruct the CU to evaluate a transmission mode configured by the MBMS service corresponding to each UE in the UE information list, and determine whether to perform reconfiguration according to an evaluation result, so that the CU determines whether to perform reconfiguration according to the evaluation result.

14. The reporting apparatus of claim 13, wherein the processor is specifically configured to

15. The reporting device of claim 13, wherein the processor is further configured to:

16. The reporting apparatus according to any one of claims 13 to 15, wherein the setting the trigger condition includes:

17. An apparatus for reporting MBMS assistance information, applied to a centralized network unit CU of a base station, the apparatus comprising: a processor, a memory, and a transceiver;

18. The reporting device of claim 17, wherein the processor is further configured to:

19. The reporting device of claim 17, wherein the processor is specifically configured to:

20. The reporting apparatus according to any one of claims 17 to 19, wherein the setting the trigger condition includes:

21. The reporting apparatus of claim 17, wherein the transmission mode comprises a unicast mode and a multicast mode.

22. The reporting device of claim 21, wherein the processor is further configured to:

23. A readable storage medium, comprising a memory,

the memory is for storing instructions that, when executed by the processor, cause an apparatus comprising the readable storage medium to perform the method of any of claims 1-10.