CN115428371A

CN115428371A - Apparatus and method for flexible transmission and reception of broadcast multicast and unicast services

Info

Publication number: CN115428371A
Application number: CN202080099944.2A
Authority: CN
Inventors: 艾哈迈德·穆罕默德·米凯尔; 生嘉
Original assignee: JRD Communication Shenzhen Ltd
Current assignee: JRD Communication Shenzhen Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2022-12-02
Also published as: WO2021212489A1

Abstract

A method for flexibly transmitting and receiving broadcast and unicast services. The UE generates and sends an indication message to the RAN node indicating a list of desired services. The RAN node receives an indication message comprising a first intended service of a first traffic type, such as unicast, and a second intended service of a second traffic type, such as MBMS. The RAN node determines a radio resource configuration and determines a BWP configuration. The radio resource configuration allocates a first set of sub-slots of the radio frame to a first intended service and a second set of sub-slots of the radio frame to a second intended service. The BWP configuration allocates a first BWP to the first set of sub-slots and a second BWP to the second set of sub-slots. The RAN node sends the configuration to the UE, which receives and decodes the configuration to receive the downlink transmission.

Description

Apparatus and method for flexible transmission and reception of broadcast multicast and unicast services

Technical Field

The present invention relates to the field of wireless communications, and more particularly, to a multimedia broadcast/multicast service (MBMS) system.

Background

Multimedia broadcast/multicast service (MBMS) is a point-to-multipoint interface intended to provide efficient delivery of broadcast and multicast services in third generation partnership project (3 GPP) cellular networks. MBMS delivers multicast services within a single cell using single cell point-to-multipoint (SC-PTM) transmission and delivers broadcast services within a group of multiple cells using multimedia broadcast multicast service single frequency network (MBSFN) transmission. SC-PTM uses the same Long Term Evolution (LTE) Downlink (DL) shared channel and subframe structure for transmission, while MBSFN defines a new channel and has a different subframe structure than regular subframe LTE to ensure transmission over a set of cells.

Disclosure of Invention

Current MBMS design in technical specifications such as Technical Specification (TS) 36.300 and TS36.331, there are a number of technical problems on both the User Equipment (UE) and Radio Access Network (RAN) side that may hinder the support of simultaneous operation of MBMS and unicast services. Simultaneous operation of MBMS and unicast services is a fifth generation (5G) and beyond the requirements of mobile networks. For example, on the UE side, the Information Element (IE) or the signaling messages provided by the UE to the network to indicate ongoing MBMS and unicast services are not well defined to support the 5G use case. On the RAN side, there is no efficient mechanism to support flexible multiplexing of MBMS and unicast services, since MBMS and unicast traffic have different frame structures. The present disclosure proposes devices and methods that improve the current MBMS specifications to address these issues, which are essential to achieve the goal of New Radio (NR) MBMS requirements.

The method proposed by the present disclosure provides some UE side and Network (NW) side enhancements related to simultaneous operation (e.g., transmission and reception) supporting MBMS and unicast in NR systems.

In a first aspect, the present disclosure provides a method executable by a UE, comprising: transmitting an indication message to the network, the indication message comprising information about ongoing or available MBMS and/or unicast services intended to be received by the UE and a frequency list of the services, and a concurrent intended reception mode of the UE. The reception mode may be unicast only, or MBMS only, or both unicast and MBMS reception.

In a second aspect, the present disclosure also provides a method executable by a RAN node, including: receiving an indication message indicating a first intended service of a first traffic type and a second intended service of a second traffic type, wherein one of the first traffic type and the second traffic type is unicast traffic and the other of the first traffic type and the second traffic type is non-unicast traffic; determining a radio resource configuration that allocates a first set of sub-slots in a radio frame to the first intended service and a second set of sub-slots in the radio frame to the second intended service; determining a bandwidth portion configuration that allocates a first bandwidth portion to the first set of sub-slots associated with the first intended service and a second bandwidth portion to the second set of sub-slots associated with the second intended service; transmitting a downlink configuration comprising the radio resource configuration and the bandwidth part configuration; and transmitting a downlink frame carrying the first intended service and the second intended service according to the downlink configuration. The RAN radio node transmits the downlink configuration to the UE, and the UE decodes the configuration to receive a downlink transmission.

In a third aspect, the present disclosure provides a RAN radio node apparatus comprising a transceiver and a processor connected with the transceiver. The processor is configured to perform steps comprising: receiving an indication message indicating a first intended service of a first traffic type and a second intended service of a second traffic type, wherein one of the first traffic type and the second traffic type is unicast traffic and the other of the first traffic type and the second traffic type is non-unicast traffic; determining a radio resource configuration that allocates a first set of sub-slots in a radio frame to the first intended service and a second set of sub-slots in the radio frame to the second intended service; determining a bandwidth portion configuration that allocates a first bandwidth portion to the first set of sub-slots associated with the first intended service and a second bandwidth portion to the second set of sub-slots associated with the second intended service; transmitting a downlink configuration comprising the radio resource configuration and the bandwidth part configuration; and transmitting a downlink frame carrying the first intended service and the second intended service in accordance with the downlink configuration. The disclosed method may be implemented in a chip. The chip may include a processor configured to invoke and execute a computer program stored in memory to cause a device in which the chip is installed to perform the disclosed methods.

The disclosed methods may be programmed as computer-executable instructions stored in a non-transitory computer-readable medium. The non-transitory computer readable medium, when loaded into a computer, instructs the processor of the computer to perform the disclosed methods.

The non-transitory computer readable medium may include at least one selected from the group consisting of: hard disk, CD-ROM, optical storage, magnetic storage, read-only memory, programmable read-only memory, erasable programmable read-only memory, EPROM, electrically erasable programmable read-only memory, and flash memory.

The disclosed methods may be programmed as a computer program product that causes a computer to perform the disclosed methods.

The disclosed methods may be programmed as a computer program that causes a computer to perform the disclosed methods.

Advantageous effects

The goal of the 5G NR is efficient multiplexing of multimedia broadcast/multicast and unicast services with resource allocation flexibility and reasonable delay to support a wide range of emerging 5G MBMS use cases such as public safety, mission critical and vehicle networking (V2X) applications. The disclosed method provides Radio Access Network (RAN) charm, comprising:

1) A new UE MBMS indication method providing MBMS and/or unicast frequency list, service list and reception mode enabling the network to multiplex MBMS and unicast transmissions simultaneously in at least one downlink radio frame;

2) Providing a new radio frame allocation mechanism for MBMS that is more flexible than current MBMS resource allocation;

3) A new subframe allocation/configuration mechanism that allows efficient multiplexing of MBMS and unicast service transmissions in one NR physical downlink radio frame and achieves multiplexing gain over a small fraction of the subframe;

4) Allocating different bandwidth parts (BWPs) for different services to account for differences in frame structure and reference signal structure between MBMS and normal unicast;

5) Dynamic scheduling of MBMS control information improves the efficiency of MBMS and unicast multiplexing in one sub-frame of a downlink radio frame.

The proposed sub-slot based allocation together with the BWP allocation method can overcome the difference problem of frame structure and reference signals for unicast and MBMS.

The sub-slot based approach proposed in the present disclosure enables the UE to have innovative reception and decoding behavior to receive multiplexed services simultaneously. For example, without sub-slot based allocation, the UE may need to spend at least two time domain resource units to receive and decode MBMS and unicast services. With this new design, the UE can simultaneously receive and decode MBMS and unicast services using only one time domain resource unit. This is an innovation on the UE side.

Drawings

In order to more clearly describe the embodiments of the present disclosure or the related art, the following drawings will be described when briefly describing the embodiments. It should be apparent that the drawings are merely examples of the present disclosure and that other drawings may be derived by one of ordinary skill in the art from these drawings.

Fig. 1 is a schematic diagram showing a system according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram showing an example of a 5G core network.

Fig. 3 is a schematic diagram showing a mobile terminal and a network performing a method according to an embodiment of the present disclosure.

Fig. 4 is a flow chart showing a method according to an embodiment of the present disclosure.

Fig. 5 is a diagram showing indication messages and downlink reconfiguration in a single-band MBMS deployment scenario.

Fig. 6 is a diagram showing an example of allocation of frame-based and subframe-based radio resources to an MBMS service.

Fig. 7 is a diagram showing an example of frame-based radio resource allocation to MBMS and unicast service.

Fig. 8 is a diagram showing an example of subframe-based radio resource allocation to MBMS and unicast service.

Fig. 9 is a diagram showing an example of sub-slot based radio resource allocation to MBMS and unicast services.

Fig. 10 is a block diagram of a system for wireless communication in accordance with an embodiment of the present disclosure.

Detailed Description

Technical contents, structural features, attained objects, and effects of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In particular, the terminology in the embodiments of the present disclosure is for the purpose of describing the embodiments of the present disclosure only, and is not intended to limit the present disclosure.

In the disclosed method, each of a plurality of User Equipments (UEs) transmits to a network an indication message including information about MBMS and unicast services intended or available by the UE, a frequency list, a reception mode of the UE. The UE may include unicast, MBMS and reception modes for simultaneous unicast and MBMS reception. From the received messages, the network may determine that for any given subframe of the NR downlink radio frame, each intended service is allocated a portion or fraction of the subframe. The portion of the subframe may include half of the subframe, i.e., a sub-slot or a mini-slot. The network configures one downlink-specific BWP for each sub-slot or mini-slot. For example, the network may configure a dedicated downlink BWP configured with a Physical Multicast Channel (PMCH) and a Multicast Control Channel (MCCH) for MBMS and may also configure a dedicated downlink BWP configured with a Physical Downlink Shared Channel (PDSCH) and a Physical Downlink Control Channel (PDCCH) for unicast transmission. The network sends downlink radio resource allocation and allocation configuration information to the UE so that the UE can receive MBMS or unicast or simultaneous MBMS and unicast services in any given subframe and radio frame.

In the description, the intended service in the present disclosure may mean a service of one of broadcast, multicast and unicast traffic types to be or intended to be received by the UE. The frequency may represent a frequency range or band defined based on the frequency used to transmit the at least one intended service. The downlink configuration includes a radio resource configuration and a bandwidth part (BWP) configuration for a desired service. The radio resource configuration allocates a first set of sub-slots in the radio frame to a first intended service and a second set of sub-slots in the radio frame to a second intended service. The bandwidth portion configuration allocates a first bandwidth portion to a first set of sub-slots associated with a first desired service and a second bandwidth portion to a second set of sub-slots associated with a second desired service. The downlink configuration may be included in the MBSFN area information and transmitted in a System Information Block (SIB).

Referring to fig. 1, UE 10a, UE 10b, base station 200a, and network entity apparatus 300 perform a method according to an embodiment of the present disclosure. Connections between devices and device components are shown as lines and arrows in fig. 1. The UE 10a may include a processor 11a, a memory 12a, and a transceiver 13a. The UE 10b may include a processor 11b, a memory 12b, and a transceiver 13b. The base station 200a may include a processor 201a, a memory 202a, and a transceiver 203a. The network entity apparatus 300 may include a processor 301, a memory 302, and a transceiver 303. Each of the processors 11a, 11b, 201a, and 301 may be configured to implement the proposed functions, processes, and/or methods described in this specification. The layers of the radio interface protocol may be implemented in the processors 11a, 11b, 201a and 301. Each of the

memories

12a, 12b, 202a and 302 is operable to store various programs and information to operate the connected processor. Each of the transceivers 13a, 13b, 203a and 303 is operatively coupled to a connected processor to transmit and/or receive radio signals. The base station 200a may be one of an eNB, a gNB, or other radio node.

Each of the processors 11a, 11b, 201a, and 301 may include a general purpose Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), other chipsets, logic circuitry, and/or data processing devices. Each of the

memories

12a, 12b, 202a, and 302 may include Read Only Memory (ROM), random Access Memory (RAM), flash memory, memory cards, storage media, other storage devices, and/or any combination of memories and storage devices. Each of the transceivers 13a, 13b, 203a, and 303 may include a baseband circuit and a Radio Frequency (RF) circuit to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein may be implemented with modules, procedures, functions, entities, etc. that perform the functions described herein. The modules may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor, where those may be communicatively coupled to the processor via various means as is known in the art.

The network entity apparatus 300 may be a node in a Central Network (CN). The CNs may include an LTE CN or 5G core (5 GC), which may include User Plane Functions (UPF), session Management Functions (SMF), mobility management functions (AMF), unified Data Management (UDM), policy Control Functions (PCF), control Plane (CP)/User Plane (UP) split (CUPS), authentication server (AUSF), network Slice Selection Functions (NSSF), network open functions (NEF), and other network entities.

The 5G NR system reuses the current unicast service architecture and flow as much as possible to deliver MBMS services. For example, referring to fig. 2, the Application Function (AF) 212 in the 5gc 220 is enhanced by introducing a new network function called Multicast Service Function (MSF), which provides MBMS service layer functions over Npcf or Nnef interfaces. The network open function (NEF) and Policy Control Function (PCF) 213 is enhanced to exchange 5G MBMS quality of service (QoS) and service area related information with the AF 212 and session policy related information with the Session Management Function (SMF) 214. The functionality of SMF 216 and User Plane Functions (UPF) is enhanced to support configuration/control of MBMS streams. Access and Mobility Functions (AMF) 215 are also enhanced to support management of the transport resources for MBMS across next generation radio access network (NG-RAN) nodes 210 and 211. Interfaces N2, N3, N6 and N7 are defined in the 5G-related standard.

The MBMS operation is described in detail below. In the description, the disclosed method is performed in a system comprising a plurality of UEs and a network. The network may include at least one of a base station 200a and a network entity apparatus 300. The UEs may include UEs 10a and 10b.

To transmit MBMS on the same LTE frame with unicast service, the MBMS-related network entity may combine the transmission of the LTE Physical Downlink Shared Channel (PDSCH) and the Physical Multicast Channel (PMCH) in the same LTE radio frame. An MBMS-capable UE may camp on an "RRC _ IDLE" LTE cell, access stratum configuration, and read system information SIB2 broadcast by the cell on a Broadcast Control Channel (BCCH) to discover availability of eMBMS services. The UE may interpret SIB2 to identify the MBMS subframe allocation configuration. The MBMS subframe allocation specifies which subframes are reserved for MBSFN transmission on PMCH and which subframes are reserved for unicast transmission on PDSCH. The repetition period of the MBSFN subframe is 1 to 32 frames, and does not interfere with the subframe for paging or synchronization signal. After determining the subframe allocated for MBMS, UEs intending to receive the MBMS service may continue to read SIB13, in which MBSFN area configuration information and Medium Access Control (MAC) control elements for Multicast Channel (MCH) scheduling information (MSI) are carried. The UE may interpret SIB13 to obtain the following information:

(1) An MBSFN area identifier for each area supported by the cell;

(2) Information on a Multicast Control Channel (MCCH) channel including an MCCH repetition period (e.g., 32, 64, … or 256 frames), an MCCH offset (e.g., 0, 1, … or 10 frames), an MCCH modification period (e.g., 512 or 1024 frames), a Modulation and Coding Scheme (MCS), subframe allocation information of the MCCH indicated by the repetition period and the offset; and

(3) And configuring MCCH change notification.

The UE may interpret the acquired information to receive an MCH channel carrying a Radio Resource Control (RRC) signaling message regarding the MBSFN area configuration. Each MBSFN area is associated with one MBSFN area configuration message. The MBSFN area configuration message includes:

(1) A Temporary Mobile Group Identity (TMGI) and a session identifier for each Multicast Traffic Channel (MTCH) identified by a logical channel identifier in each PMC;

(2) The allocation resources of each PMCH in the zone, and the allocation period of the allocation resources of all PMCHs in the zone (e.g., 4, 8, … or 256 frames); and

(3) An MCH Scheduling Period (MSP) to send MSI MAC control elements, e.g., 8, 16, …, or 1024 radio frames.

The MSI MAC control element is transmitted on the first subframe of each scheduling period of the PMCH. MSI indicates the end of frames and subframes for each MTCH within the UE's PMCH. The UE may read the control element to receive an instance of the MTCH channel. To determine the frequencies received by the UE to provide the MBMS service, the UE may check a User Service Description (USD) and/or read a SIB15 that includes a list containing the current frequency and neighboring frequencies, where each frequency in the list is associated with a list of MBMS Service Area Identifications (SAIs) supported by the corresponding frequency, and the USD includes a TMGI corresponding to each MBMS SAI and also includes information associating the TMGI and the SAI. For one or more MBMS services of interest, the UE may use the information provided by SIB15 and the USD to determine the MBMS SAI associated with the corresponding TMGI of interest and then specify one or more frequencies associated with the MBMS SAI as frequencies or frequencies of interest. After determining the frequency or frequencies of interest, the UE may send an RRC signaling message, referred to as an MBMS interest indication message, to the network to inform about the intended MBMS service or services provided by the corresponding frequency or frequencies.

The present disclosure provides a method that allows one or more UEs (e.g., one or both of UEs 10a and 10 b) to receive MBMS and unicast services in a 5G NR system. Referring to fig. 3, the ue is in an RRC connected mode (step 310). The UE in RRC connected mode determines the intended service of the intended traffic type (step 311) and sends an indication message to the Network (NW), e.g. one or both of the base station 200a and the NW entity 300, comprising the intended service ID of the service associated with the intended traffic type, carrier frequency and reception mode (step 312). In response to the indication message, the NW determines a radio resource configuration indicating sub-slots allocated to different services of different traffic types and a BWP configuration configuring different DL BWPs for the different services and sends the configuration to the UE (step 313). The NW sends the downlink configuration to the UE and sends radio frames to the UE according to the downlink configuration (step 314). The NW sends a first radio resource unit of a first intended service and a second radio resource unit of a second intended service to the UE according to the downlink configuration. The first radio resource unit and the second radio resource unit are multiplexed in different time resource units on the same frequency band or multiple frequency bands. The method of fig. 3 may be applied to multiple UEs.

Referring to fig. 4, a UE in RRC connected mode determines one or more intended services for one or more traffic types and sends an indication message to the NW, e.g. one or both of the base station 200a and the NW entity 300. The service types include MBMS, unicast and simultaneous MBMS and unicast. The UE generates and sends an indication message to the NW indicating a list of desired services (block 400). The indication message includes a list of one or more desired services, a list of serving carrier frequencies, and a reception mode of the UE. The list of intended services is a list of radio data bearers of ongoing or intended services. For example, the radio data bearer may be identified by a service Identity (ID). The UE may periodically send an indication message at the granularity level of one NR radio frame. The message may also include a list of frequencies for ongoing or anticipated MBMS and unicast services and the currently supported reception mode of the UE. The currently supported reception mode of the UE may include one of a unicast only, MBMS only, simultaneous MBMS and unicast reception mode.

The NW receives an indication message from the UE and, in response to the indication message, determines sub-slots to be allocated for each service (block 401). In response to the indication message received from the UE, the NW determines the NR downlink configuration. The NW allocates BWP for the sub-slots (block 402). In particular, the NW receives an indication message indicating a first intended service of a first traffic type and a second intended service of a second traffic type. One of the first traffic type and the second traffic type is unicast traffic and the other of the first traffic type and the second traffic type is non-unicast traffic, such as broadcast, multicast or multicast. The NW determines a radio resource configuration that allocates a first set of sub-slots in the radio frame to a first desired service and a second set of sub-slots in the radio frame to a second desired service. The NW determines a bandwidth part configuration that allocates a first bandwidth part to a first set of sub-slots associated with a first desired service and a second bandwidth part to a second set of sub-slots associated with a second desired service. The BWP of a sub-slot (mini-slot) starts in the time domain from the beginning of the sub-slot. The NW is configured to one of the BWPs allocated for MBMS services on PMCH and one of the BWPs allocated for unicast services on PDSCH (block 403).

The NW generates an NR downlink radio frame to include the desired service for the corresponding traffic type and sends the downlink frame and downlink configuration to the UE (block 404). The downlink configuration includes radio resource allocation for the intended service for MBMS only, unicast only or both MBMS and unicast traffic types. Radio frames of unicast traffic type may be transmitted on PDSCH, while radio frames of MBMS traffic type may be transmitted on PMCH. Radio frames transmitted simultaneously unicast and MBMS may be transmitted on PDSCH and PMCH. The downlink configuration may be transmitted in Downlink Control Information (DCI) or RRC signaling. The UE receives and decodes the downlink configuration and receives a downlink transmission including a downlink frame in accordance with the configuration (block 405).

At the UE side, at least one UE sends an indication message indicating a first expected service of a first traffic type and a second expected service of a second traffic type. One of the first traffic type and the second traffic type is unicast traffic and the other of the first traffic type and the second traffic type is non-unicast traffic. And the UE receives the downlink configuration of the response indication message. The downlink configuration includes a radio resource configuration and a bandwidth part configuration. The radio resource configuration allocates a first set of sub-slots in the radio frame to a first intended service and a second set of sub-slots in the radio frame to a second intended service. The bandwidth portion configuration allocates a first bandwidth portion to a first set of sub-slots associated with a first intended service and a second bandwidth portion to a second set of sub-slots associated with a second intended service. The UE receives and decodes downlink frames carrying the first desired service and the second desired service according to the downlink configuration.

An example of the disclosed method using the proposed new IE is detailed below. The NW may interpret the IE to allocate and configure PDSCH and PMCH transmissions in the downlink.

Referring to fig. 5, in an example of single band MBMS deployment, a UE in RRC connected mode resides in band F1 in the NW with single band deployment MBMS and intends to receive MBMS services. The UE may initially intend to receive two MBMS services, e.g. a news service (S1) and a sports service (S2), and simultaneously receive a unicast service (S3), e.g. a file download. The UE may send an MBMS interest indication message 501 to the NW to indicate the intended MBMS services S2 and S3 and the unicast service S3 (step 501). As shown in fig. 5, the indication message may be represented by a message M1: [ (S1, S2), (S3), (F1) and ] simultaneously. According to the content of the messages received from all UEs in the network, the network determines the sub-slots allocated to the different services based on the number of the intended MBMS and/or unicast service and the reception mode indicated in the interest indication message. For example, when the reception mode is simultaneous MBMS and unicast reception, the NW determines the number of the sub-slot in the radio frame to be allocated to the intended MBMS service and the number of the sub-slot in the radio frame to be allocated to the intended unicast service.

As shown in fig. 5, the network configures an MBMS downlink bandwidth part for a sub-slot within radio frame 1 in the PMCH channel allocated to the MBMS service, and configures a unicast downlink bandwidth part for a sub-slot within radio frame 1 in the PDSCH channel allocated to the unicast service. The network sends a downlink configuration including a downlink radio resource configuration and a BWP configuration to the UE (step 502). For example, the BWP configuration may include a bitmap indicating bandwidth portion allocations. The UE may decode the configuration using the bitmap and receive the frame. If the unicast service S3 is temporarily stopped while the news service S1 and the sports service S2 are still running, the UE updates the indication message to [ (S1, S2), (F1), MBMS ], and sends the indication message to the NW. As shown in the figure. As shown in fig. 5, the NW configures the entire downlink radio frame 2 to contain only the PMCH channel for the MBMS service. Similarly, when MBMS services S1 and S2 stop and unicast service S3 is running, the NW configures the entire downlink radio frame 2 to contain only the PDSCH channel of unicast service S3. Thus, the disclosed method provides flexibility for radio resource allocation for MBMS and unicast transmissions. One radio frame carries an MBMS service subframe and a unicast service subframe. Note that some subframes are left as paging and synchronization, but may be variable, according to current LTE designs.

In one embodiment of the disclosure, a UE receives a first radio resource unit of a first intended traffic service and a second radio resource unit of a second intended service according to a downlink configuration. The first and second radio resource units may be subframes, sub-slots or mini-slots, which are multiplexed into different slots on the same frequency band F1.

The UE may send an information element to the network in SC-PTM and MBSFN mode of operation to indicate the MBMS service list. The network receives an information element indicating a list of MBMS services intended by the UE in SC-PTM and MBSFN modes of operation and uses the information element to determine the allocation of unicast services and multicast/broadcast services on the downlink frame.

Embodiments of the disclosed methods are detailed below.

According to TS36.331, the ue acquires the MBMS subframe allocation configuration from systemlnformationblocktype 2, and receives the MBMS according to the MBMS subframe allocation. The Information Element (IE) mbsfn-subframe ConfigList defines the subframe allocation configuration using the parameters of the mbsfn-subframe Config IE. mbsfn-subframe config indicates the radio frame reserved for MBMS transmission, the subframe configuration in the reserved radio frame. The subframe configuration indicates which subframes are reserved for MBSFN transmission using PMCH and which subframes are reserved for unicast transmission using PDSCH. According to TS36.331, section 6.3.7, the MBSFN-subframe Config IE includes:

1) The radioFrameAllocationPeriod IE and the radioFrameAllocationOffset IE are used to define a radio frame allocated for the MBSFN; and

2) The subframe allocation IE comprises a bitmap defining subframes allocated for MBSFN within the MBMS radio frame.

The bitmap is 6bits (6 bits) for a period of one frame and 24bits (24 bits) for a period of four consecutive radio frames. Referring to fig. 6, for a bitmap, the following mapping applies:

1) A bit with binary value "1" in the bitmap indicates that the corresponding subframe associated with the bit is allocated to the MBSFN;

2) For FDD, the first/leftmost bit defines the MBSFN allocation of subframe #1, the second bit defines subframe #2, the third bit defines subframe #3, the fourth bit defines subframe #6, the fifth bit defines subframe #7, and the sixth bit defines subframe #8; and

3) For TDD, the first/leftmost bit defines the allocation of subframe #3, the second bit defines subframe #4, the third bit defines subframe #7, the fourth bit defines subframe #8, and the fifth bit defines subframe #9, as shown in fig. 6.

According to the MBSFN design in TS36.331 described above, the MBMS radio frame allocation determined by MBSFN-subframe config of systemlnformationblocktype 2 is statistically defined using the following equation: [ SFN mode N = X ], where N = radioFrameAllocation period and X = radioFrameAllocation offset (FIG. 8). This type of static allocation has the following limitations:

1) Multiplexing of MBMS and unicast as a static allocation inflexibility prevents UEs from receiving MBMS services during non-MBMS reserved frames even if some UEs intend to receive MBMS services during non-MBMS radio frames.

2) The waste of radio frame resources as a static allocation results in frame resources being reserved for unicast services when few or no UEs intend to receive MBMS.

3) MBMS service delay, since static allocation requires the UE to wait for radio frames reserved for MBMS, which cannot meet the requirements of NR time sensitive use cases such as public safety, mission critical, V2X applications and group communication.

A first embodiment of the disclosed method dynamically allocates radio frames for MBMS according to the number and reception mode of the intended service of the UE. The information element in the radio resource configuration comprises a bitmap indicating that a first set of subframes in the radio frame is allocated to a first intended service and a second set of subframes in the radio frame is allocated to a second intended service. The intended service may include MBMS and/or unicast. Referring to table 1, new parameters such as a radio frame repetition periodic NR are proposed in the disclosed method as elements of MBSFN-subframe configuration-NR and MBSFN-subframe configuration-NR in NR to define and schedule a reception period of a radio frame for carrying MBMS. The radioframe repetition periodorr includes a parameter oneFrameNR representing a repetition period of one frame and a parameter fourFramesNR representing a repetition period of four frames. The parameter oneFrameNR comprises a bitmap subslotsBitmapOneFrame. The parameter fourframenr comprises a bitmap subslotsBitmapOneFrame. For example, the scheduling of MBMS may be defined for every radio frame or every four radio frames, denoted in table 1 by rf1 or rf4, respectively. As shown in fig. 8, the radio frame is expected to be used for MBMS transmission. The NR radio frames may be allocated to MBMS, unicast, or simultaneous MBMS and unicast transmission by dynamic allocation. Radio resources such as subframes or subslots in the NR radio frame may be allocated to the MBMS service and the unicast service according to the intended MBMS and unicast service indicated by the UE. The radio resources allocated to the intended MBMS and unicast service indicated by the UE may be represented by a percentage in the radio frame.

Table 1: MBSFN-subframe config IE proposed for NR MBMS

A bitmap is defined in the subframe allocation IE to indicate subframes allocated for MBSFN within the MBMS reserved radio frame. The bitmap may be 6bits for a repetition period of one radio frame or 24bits for a repetition period of four consecutive radio frames. The bitmap defines the radio resource allocation for MBMS with a granularity level as low as one subframe. Referring to fig. 7, for example, any specific subframe may be allocated to unicast transmission on a PDSCH channel or MBMS transmission on a PMCH, but cannot be allocated to both at the same time.

In a second embodiment of the disclosed method, the information element in the radio resource configuration comprises a bitmap indicating that a first set of sub-slots in a radio frame is allocated to a first intended service and a second set of sub-slots in the radio frame is allocated to a second intended service. The bitmap indicates the indices of the first set of sub-slots and the second set of sub-slots. To achieve efficient multiplexing of MBMS and unicast with minimal delay at a smaller granularity level than current MBMS designs, the present disclosure redefines the bitmap indicated by the subframe allocation IE to indicate sub-slot based allocation, while taking into account the difference in subcarrier spacing and the number of sub-slots supported per subcarrier spacing, given by the subslotsbitmaoneframe, the subslotbistortfourframes, and the parameter maxrofssnr, which indicates the length of the bitmap according to the NR subcarrier spacing (see table 3). Note that, similarly to LTE, the new bitmap in NR can also be set to the repetition period for one radio frame by subslotsbitmaoneframe. Alternatively, the new bitmap in NR may be set to a repetition period for four radio frames by subslotsBitmapFourFrames. The radio resource configuration further allocates subslots for paging and synchronization. One of the main advantages of slot-based allocation is the saving of frame resources reserved for paging and synchronization. Table 2 shows an example of slot-based allocation where only half of the subframes are reserved for paging and synchronization, which improves the resource utilization of MBMS by 80%, while the subframe-based resource allocation is 60%.

Table 2: example of MBMS sub-slot allocation in NR

TABLE 3

In the current MBMS design, SIB13 area configuration messages including the MBSFNAreaConfiguration, MBMS-notificationconfiguration and MBSFN-AreaInfoList IE are sent from the network to the UEs. The subframe allocation IE is used to define the subframe allocated for MBSFN transmission.

The radio resource configuration may be transmitted in a system information block including at least one of a common sub-slot allocation pattern, an MBMS notification configuration, and MBSFN area information.

In a third embodiment of the disclosed method, the network provides the UE with a new proposed sub-slot based bitmap via a zone configuration message. The UE decodes the bitmap to determine a sub-slot based resource allocation. The zone configuration message may be carried in LTE SIB13 or any other newly defined NR MBMS related SIB to indicate the sub-slot based bitmap using the parameters common sub-slot-AllocPatternList-NR of the MBSFNAreaConfiguration-NR IE as shown in table 4, the parameters sl-AllocInfo-NR of the MBMS-notifiationconfig-NR IE as shown in table 5, the parameters sub-slot-AllocInfo-NR of the MBSFN-arealnfo-NR IE as shown in table 7. The parameter denoted CommonSubslot-AllocPattern List-NR is MBSFN-SubframeConfig-NR. Common subslot-AllocPatternList-NR represents a sub-slot based bitmap containing a list of MBSFN-SubframeConfig-NRs for different regions. The radio resource configuration may be transmitted in a system information block including MBSFN area information. The MBSFN area information comprises scheduling information and configuration for MCH, MCCH and MTCH, MCCH notifications and MCS associated with at least one of the first desired service and the second desired service.

Table 4: MBSFNAreaConfiguration-NR IE for NR MBMS

Table 5: MBMS-Notification Config-NR IE for NR MBMS

After detecting the subframe configuration or the sub-slot configuration in the NR, the UE continues to read the newly defined SIB in SIB13 systemlnformationblocktype 13 or NR to determine the MBSFN area configuration. The MBSFN-AreaInfoList IE contains:

1) MBMS control information for one or more MBSFN areas including, for example, scheduling information for MCH, MCCH, and MTCH, MCCH configuration indicating how to organize MTCH and access MTCH, MCCH notification, and MCS for the intended service; and

2) The information about the allocation of the MBSFN subframe comprises the repetition period and the subframe offset which indicate the MBSFN subframe.

As shown in table 6, the current MBMS frame/subframe structure for MBMS has different types of Cyclic Prefix (CP), CP duration, carrier spacing, and number of symbols per subframe for normal unicast transmission. Current MBMS designs do not support efficient multiplexing of MBMS and unicast in time within less than a subframe, which may increase latency and thus are not suitable for 5G time sensitive use cases such as public safety, mission critical, V2X applications and group communications.

Table 6: frame structure differences for MBMS and unicast use

A fourth embodiment of the disclosed method is provided to account for differences in physical layer (PHY) frame/subframe structure and reference signal structure for MBMS and unicast services and to achieve a granularity level for MBMS and unicast multiplexing in a fraction of a single subframe. Referring to table 8, the method allocates different types of bandwidth parts for different services using a new IE, MBSFN-subslotss bwpconfig within MBSFN-AreaInfo-NR. Each service may be configured with different types of CPs, CP durations, carrier intervals, numbers of symbols and channels, and reference signals. The MBSFN-subslotss bwpconfig IE is used to configure the bandwidth part of the MBSFN area, and contains the following IEs:

1) BWP-MbmmsDownlinBWP: a UE-specific BWP configured to include a PMCH and MCCH channel configured for MBMS transmission and a Physical Downlink Control Channel (PDCCH) channel for tracking MCCH changes, including MCCH notification changes broadcast on the PDCCH;

2) BWP-UnicastDownlinkBWP: a UE-specific BWP configured to include a configuration of PDCCH and PDSCH for unicast transmission;

3) BWP-MBSFNDowlink: a cell-specific BWP for performing an initial access procedure;

4) MBMS-SubSlotsConfig: configuring a parameter of an MBMS sub-slot (mini-slot) transmission period within an NR downlink radio frame; and

5) UNICAST-SubSlotsConfig: parameters of a unicast sub-slot (mini-slot) transmission period within an NR downlink radio frame are configured.

Dynamic MBMS scheduling in NR may be achieved by configuring MBMS control channels MCCH and PMCH within BWP allocated to each MBSFN area. Fixed scheduling of MCCH repetition period and MCCH offset as used in LTE MBMS is not required in the disclosed method, since the MCCH control channel is scheduled automatically within the configured BWP.

Table 7: MBSFN-AreaInfoList-NR IE proposed for NR MBMS

TABLE 8

In a fifth embodiment of the disclosed method, the bandwidth part comprises a configuration IE, MBSFN-subslotss bwpconfig IE, defining the transmission period of MBMS and unicast sub-slots within an NR Time Division Duplex (TDD)/Frequency Division Duplex (FDD) radio frame. Referring to table 9, MBMS-substlotsfig determines a transmission period of MBMS within an NR downlink radio frame using a bitmap configured in MBSFN-subframe config-NR IE, and UNICAST-substlotsfig determines a transmission period of UNICAST within an NR downlink radio frame using a bitmap configured in MBSFN-subframe config-NR IE. For example, the bitmap indicating both unicast and MBMS in the fifth embodiment may be [01101], where "0" indicates a sub-slot of one or more unicast services and "1" indicates a sub-slot of one or more MBMS services. Thus, the UNICAST bitmap UNICAST-SubSlotsConfig may be [0xx0x ], and the MBSM bitmap MBMS-SubSlotsConfig may be [ x11x1], where x is a null value. Referring to fig. 9, in MBMS-subclotsfig and UNICAST-subclotsfig, the IE subslot type includes parameters mbm-subslot and UNICAST-subslot. Parameter mbm-subslot represents the number of the MBMS subslot, parameter unity-subslot represents the number of the unicast subslot, and parameter suslotindex represents the index of the unicast or MBMS subslot, i.e., the index within the NR TDD Downlink (DL)/Uplink (UL) or FDD DL radio frame period.

TABLE 9

Fig. 10 is a block diagram of an example system 700 for wireless communication in accordance with an embodiment of the disclosure. The embodiments described herein may be implemented in a system using any suitably configured hardware and/or software. Fig. 10 illustrates a system 700. The system 700 includes Radio Frequency (RF) circuitry 710, baseband circuitry 720, application circuitry 730, memory/storage 740, sensors 770, and an input/output (I/O) interface 780, coupled to one another at least as shown.

The application circuitry 730 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors (e.g., a graphics processor and an application processor). The processor may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to implement various applications and/or operating systems running on the system.

Baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include a baseband processor. The baseband circuitry may handle various wireless control functions that enable communication with one or more wireless networks through the radio frequency circuitry. The wireless control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, and the like. In some embodiments, the baseband circuitry may provide communications compatible with one or more wireless technologies. For example, in some embodiments, the baseband circuitry may support communication with an Evolved Universal Terrestrial Radio Access Network (EUTRAN) and/or other Wireless Metropolitan Area Networks (WMANs), wireless Local Area Networks (WLANs), wireless Personal Area Networks (WPANs). Embodiments in which the baseband circuitry is configured to support wireless communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry. In various embodiments, baseband circuitry 720 may include circuitry that operates with signals that are not strictly considered to be within a baseband frequency. For example, in some embodiments, the baseband circuitry may include circuitry that operates with signals having an intermediate frequency, where the intermediate frequency is between the baseband frequency and the radio frequency.

RF circuitry 710 may enable communication with a wireless network using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, and the like to facilitate communication with the wireless network. In various embodiments, RF circuitry 710 may include circuitry that operates with signals that are not strictly considered to be within radio frequencies. For example, in some embodiments, the RF circuitry may include circuitry that operates with signals having an intermediate frequency, where the intermediate frequency is between a baseband frequency and a radio frequency.

In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part as one or more of RF circuitry, baseband circuitry, and/or application circuitry. As used herein, "circuitry" may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, application circuitry, and/or memory/storage may be implemented together on a system on a chip (SOC).

Memory/storage 740 may be used to load and store data and/or instructions, for example, for a system. The memory/storage of one embodiment may comprise any combination of suitable volatile memory (e.g., dynamic Random Access Memory (DRAM)) and/or non-volatile memory (e.g., flash memory). In various embodiments, the input/output interface 780 may include one or more user interfaces designed to enable a user to interact with the system and/or peripheral component interfaces designed to enable peripheral components to interact with the system. The user interface may include, but is not limited to, a physical keyboard or keypad, a touchpad, a speaker, a microphone, and the like. The peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a Universal Serial Bus (USB) port, an audio jack, and a power interface.

In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, baseband circuitry and/or RF circuitry to communicate with components of a positioning network, such as Global Positioning System (GPS) satellites. In various embodiments, system 700 may be a mobile computing device, such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, and the like. In various embodiments, the system may have more or fewer components and/or different architectures. Where appropriate, the methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

Embodiments of the present disclosure are a combination of techniques/processes that may be employed in 3GPP specifications to create an end product.

One of ordinary skill in the art understands that each unit, algorithm, and step described and disclosed in the embodiments of the present disclosure is implemented using electronic hardware or a combination of electronic hardware and software for a computer. Whether these functions are run in hardware or software depends on the conditions and design requirements of the application of the solution. Those of ordinary skill in the art may implement the functionality of each particular application in different ways without departing from the scope of the present disclosure. A person skilled in the art will understand that he/she may refer to the working processes of the systems, devices and units in the above embodiments, since the working processes of the above systems, devices and units are substantially the same. For convenience and brevity of description, these operations will not be described in detail.

It should be understood that the systems, apparatuses, and methods disclosed in embodiments of the present disclosure may be implemented in other ways. The above embodiments are merely exemplary. The division of cells is based on logic functions only, while other divisions exist in the implementation. Multiple units or components may be combined or integrated in another system. It is also possible to omit or skip certain features. On the other hand, the mutual coupling, direct coupling or communicative coupling shown or discussed is operated through some ports, devices or units, whether indirectly or through electrical, mechanical or other forms of communication.

Units that are separate components for illustration are physically separate or not. A unit is a physical unit or not, i.e. located in one place or distributed over multiple network units. Some or all of the elements are used for purposes of the embodiments. Furthermore, each functional unit in each embodiment may be integrated in one processing unit, may be physically independent, or may be integrated in one processing unit having two or more units.

If the software functional unit is implemented, used, or sold as a product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions proposed by the present disclosure can be implemented basically or partially in the form of software products. Alternatively, portions of the technical solutions that are advantageous for the conventional techniques may be implemented in the form of software products. The software product in a computer is stored in a storage medium that includes a plurality of commands for a computing device (e.g., a personal computer, server, or network device) to perform all or a portion of the steps disclosed in embodiments of the present disclosure. The storage medium includes a USB disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a floppy disk, or other medium capable of storing program code.

In the present disclosure, dynamic scheduling is provided to allocate radio resources to services of different traffic types with a level of granularity down to a sub-frame or a portion of a sub-slot (mini-slot). Different BWPs are configured to be associated with different traffic types of services. The disclosed method provides Radio Access Network (RAN) charm, comprising:

3) A subframe allocation/configuration mechanism that allows efficient multiplexing of MBMS and unicast service transmissions in one NR physical downlink radio frame and achieves multiplexing gain over a small fraction of the subframe;

4) Allocating different bandwidth parts (BWPs) for different services to account for differences between MBMS and normal unicast in frame structure and reference signal structure;

5) Dynamic scheduling of MBMS control information improves the efficiency of MBMS and unicast multiplexing in one downlink radio frame.

While the disclosure has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the disclosure is not to be limited to the disclosed embodiment, but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.

Claims

1. A flexible transmission and reception method for broadcast multicast and unicast services, executable by a RAN radio node, comprising:

receiving an indication message indicating a first intended service of a first traffic type and a second intended service of a second traffic type, wherein one of the first traffic type and the second traffic type is unicast traffic and the other of the first traffic type and the second traffic type is non-unicast traffic;

determining a radio resource configuration that allocates a first set of sub-slots in a radio frame to the first intended service and a second set of sub-slots in the radio frame to the second intended service;

determining a bandwidth portion configuration that allocates a first bandwidth portion to the first set of sub-slots associated with the first intended service and a second bandwidth portion to the second set of sub-slots associated with the second intended service;

transmitting a downlink configuration comprising the radio resource configuration and the bandwidth part configuration; and

transmitting a downlink frame carrying the first desired service and the second desired service according to the downlink configuration.

2. The method of claim 1, wherein the indication message further comprises a reception mode for receiving the first intended service and the second intended service.

3. The method of claim 2, wherein the reception mode comprises one of a unicast reception mode, a non-unicast reception mode, and a simultaneous unicast and non-unicast reception mode.

4. The method of claim 3, wherein the non-unicast reception mode comprises an MBMS reception mode, and the simultaneous unicast and non-unicast reception modes comprise simultaneous unicast and MBMS reception modes.

5. The method of claim 1, wherein the non-unicast traffic comprises at least one of broadcast traffic, multicast traffic, and multicast traffic.

6. The method of claim 1, wherein the radio resource configuration comprises an information element comprising a bitmap indicating an allocation of a first set of subframes in the radio frame to the first intended service and a second set of subframes in the radio frame to the second intended service.

7. The method of claim 1, wherein the bitmap is configured as a 6-bit (6-bit) bitmap for a repetition period of one radio frame and as a 24-bit (24-bit) bitmap for a repetition period of four consecutive radio frames.

8. The method of claim 1, wherein the radio resource configuration comprises an information element comprising a bitmap indicating the allocation of the first set of sub-slots to the first intended service and the allocation of the second set of sub-slots to the second intended service.

9. The method of claim 1, wherein the bitmap indicates indices of the first set of sub-slots and the second set of sub-slots.

10. The method of claim 1, wherein the radio resource configuration is transmitted in a system information block comprising at least one of a common sub-slot allocation pattern, an MBMS notification configuration, and MBSFN area information.

11. The method of claim 1, wherein the radio resource configuration is transmitted in a system information block comprising MBSFN area information, and the MBSFN area information comprises scheduling information and configuration for MCH, MCCH, and MTCH, MCCH notification, and MCS associated with at least one of the first intended service and the second intended service.

12. The method of claim 1, wherein the radio resource configuration allocates subslots for paging and synchronization.

13. The method of claim 1, wherein the radio resource configuration is included in MBSFN area information.

14. The method of claim 1, wherein the bandwidth part configuration is included in MBSFN area information, the MBSFN area information comprising:

an information element for configuring a UE-specific BWP for a PMCH and MCCH channel for MBMS transmission;

an information element for a UE-specific BWP configured with PDCCH and PDSCH for unicast transmission;

an information element for performing cell-specific BWP of an initial access procedure;

configuring a parameter of an MBMS sub-slot transmission period within the radio frame; and

configuring parameters of a unicast sub-slot transmission period within the radio frame.

15. The method of claim 1, further comprising:

transmitting a first radio resource unit of the first intended service and a second radio resource unit of the second intended service according to the downlink configuration, wherein the first radio resource unit and the second radio resource unit are multiplexed to different time resource units of the same frequency band.

16. A radio node device, characterized by comprising:

a transceiver; and

a processor connected with the transceiver and configured to perform the steps comprising:

determining a bandwidth part configuration that allocates a first bandwidth part to the first set of sub-slots associated with the first intended service and a second bandwidth part to the second set of sub-slots associated with the second intended service;

17. The apparatus of claim 16, wherein the indication message further comprises a reception mode for receiving the first intended service and the second intended service.

18. The apparatus of claim 17, wherein the reception mode comprises one of a unicast reception mode, a non-unicast reception mode, and a simultaneous unicast and non-unicast reception mode.

19. The apparatus of claim 18, wherein the non-unicast reception mode comprises an MBMS reception mode, and the simultaneous unicast and non-unicast reception modes comprise simultaneous unicast and MBMS reception modes.

20. The apparatus of claim 16, wherein the non-unicast traffic comprises at least one of broadcast traffic, multicast traffic, and multicast traffic.

21. The apparatus of claim 16, wherein the radio resource configuration comprises an information element comprising a bitmap indicating allocation of a first set of subframes in the radio frame to the first intended service and a second set of subframes in the radio frame to the second intended service.

22. The apparatus of claim 16, wherein the bitmap is configured as a 6-bit (6-bit) bitmap for a repetition period of one radio frame, and is configured as a 24-bit (24-bit) bitmap for a repetition period of four consecutive radio frames.

23. The apparatus of claim 16, wherein the radio resource configuration comprises an information element comprising a bitmap indicating the allocation of the first set of sub-slots to the first intended service and the allocation of the second set of sub-slots to the second intended service.

24. The apparatus of claim 16, wherein the bitmap indicates indices of the first set of sub-slots and the second set of sub-slots.

25. The apparatus of claim 16, wherein the radio resource configuration is transmitted in a system information block comprising at least one of a common sub-slot allocation pattern, an MBMS notification configuration, and MBSFN area information.

26. The apparatus of claim 16, wherein the radio resource configuration is transmitted in a system information block comprising MBSFN area information, and the MBSFN area information comprises scheduling information and configurations for MCH, MCCH, and MTCH, MCCH notification, and MCS associated with at least one of the first intended service and the second intended service.

27. The apparatus of claim 16, wherein the radio resource configuration allocates subslots for paging and synchronization.

28. The apparatus of claim 16, wherein the radio resource configuration is included in MBSFN area information.

29. The apparatus of claim 16, wherein the bandwidth part configuration is included in MBSFN area information, the MBSFN area information comprising:

an information element for configuring a UE-specific BWP of a PMCH and an MCCH channel for MBMS transmission;

configuring parameters of an MBMS sub-slot transmission period within the radio frame; and

30. The device of claim 16, wherein the processor is configured to perform the steps of:

31. A chip, comprising:

a processor configured to invoke and run a computer program stored in memory to cause an apparatus in which the chip is installed to perform the method of any one of claims 1 to 15.

32. A computer-readable storage medium, in which a computer program is stored, characterized in that the computer program causes a computer to carry out the method according to any one of claims 1 to 15.

33. A computer program product comprising a computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 15.

34. A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 15.