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

Abstract

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

Description

Technical Field

[0001] The present invention relates to the field of wireless communication, and more particularly to a Multimedia Broadcast / Multicast Service (MBMS) system. Background Art

[0002] Multimedia Broadcast / Multicast Service (MBMS) is a point-to-multipoint interface designed to provide efficient delivery of broadcast and multicast services in a Third Generation Partnership Project (3GPP) cellular network. MBMS uses Single-Cell Point-to-Multipoint (SC-PTM) transmission to deliver multicast services within a single cell, and uses Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) transmission to deliver broadcast services within a group of multiple cells. SC-PTM uses the same Long-Term Evolution (LTE) downlink (DL) shared channel and subframe structure for transmission, while MBSFN defines new channels and has a subframe structure different from that of conventional subframe LTE to ensure transmission through a group of cells. Summary of the Invention

[0003] Current MBMS designs in technical specifications such as Technical Specification (TS) 36.300 and TS 36.331 have many technical problems on both the User Equipment (UE) and Radio Access Network (RAN) sides, which may hinder the support for the simultaneous operation of MBMS and unicast services. The simultaneous operation of MBMS and unicast services is a necessary requirement for fifth-generation (5G) and beyond mobile networks. For example, on the UE side, Information Elements (IEs) or signaling messages provided by the UE to the network to indicate ongoing MBMS and unicast services are not well defined to support 5G use cases. On the RAN side, since MBMS and unicast services have different frame structures, there is no effective mechanism to support the flexible multiplexing of MBMS and unicast services. The present disclosure proposes devices and methods to improve the current MBMS specifications to address these issues, which are essential for achieving the goals of New Radio (NR) MBMS requirements.

[0004] The method proposed by the present disclosure provides some UE-side and network (NW)-side enhancements related to the simultaneous operation (e.g., transmission and reception) of supporting MBMS and unicast in an NR system.

[0005] In a first aspect, the present disclosure provides a method executable by a UE, including: transmitting an indication message to the network, the indication message including information about ongoing or available MBMS and / or unicast services that the UE intends to receive and a list of frequencies of the services, and the concurrent expected reception mode of the UE. The reception mode can be unicast only, or MBMS only, or both unicast and MBMS reception simultaneously.

[0006] In a second aspect, the present disclosure also provides a method executable by a RAN node, including: receiving an indication message indicating a first expected service of a first service type and a second expected service of a second service type, where one of the first service type and the second service type is a unicast service, and the other of the first service type and the second service type is a non-unicast service; determining a radio resource configuration that allocates a first set of sub-slots in a radio frame to the first expected service and allocates a second set of sub-slots in the radio frame to the second expected service; determining a bandwidth part configuration that allocates a first bandwidth part to the first set of sub-slots associated with the first expected service and allocates a second bandwidth part to the second set of sub-slots associated with the second expected service; transmitting a downlink configuration including the radio resource configuration and the bandwidth part configuration; and transmitting a downlink frame carrying the first expected service and the second expected 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 the downlink transmission.

[0007] In a third aspect, the present disclosure provides a RAN radio node device, including a transceiver and a processor connected to the transceiver. The processor is configured to execute the following steps, including: receiving an indication message indicating a first expected service of a first service type and a second expected service of a second service type, where one of the first service type and the second service type is a unicast service, and the other of the first service type and the second service type is a non-unicast service; determining a radio resource configuration that allocates a first set of sub-slots in a radio frame to the first expected service and allocates a second set of sub-slots in the radio frame to the second expected service; determining a bandwidth part configuration that allocates a first bandwidth part to the first set of sub-slots associated with the first expected service and allocates a second bandwidth part to the second set of sub-slots associated with the second expected service; transmitting a downlink configuration including the radio resource configuration and the bandwidth part configuration; and transmitting a downlink frame carrying the first expected service and the second expected service according to the downlink configuration. The disclosed method can be implemented in a chip. The chip may include a processor configured to call and run a computer program stored in a memory to cause a device installed with the chip to execute the disclosed method.

[0008] The disclosed method can 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 a processor of the computer to execute the disclosed method.

[0009] A non-transitory computer-readable medium may include at least one selected from the group consisting of: a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an EPROM, an electrically erasable programmable read-only memory, and a flash memory.

[0010] The disclosed method can be programmed as a computer program product that causes a computer to execute the disclosed method.

[0011] The disclosed method can be programmed as a computer program that causes a computer to execute the disclosed method.

[0012] Advantageous effects

[0013] The goal of 5G NR is the efficient multiplexing of multimedia broadcast / multicast and unicast services, with resource allocation flexibility and reasonable latency, to support a wide range of emerging 5G MBMS use cases, such as public safety, mission-critical, and vehicle-to-everything (V2X) applications. The disclosed method provides radio access network (RAN) attractions, including:

[0014] 1) A new UE MBMS indication method that provides an MBMS and / or unicast frequency list, service list, and reception mode, enabling the network to simultaneously multiplex MBMS and unicast transmissions in at least one downlink radio frame;

[0015] 2) A new radio frame allocation mechanism for MBMS that provides more flexibility than the current MBMS resource allocation;

[0016] 3) A new subframe allocation / configuration mechanism that allows for the efficient multiplexing of MBMS and unicast service transmissions in an NR physical downlink radio frame and achieves multiplexing gain within a small portion of the subframe;

[0017] 4) Allocating different bandwidth parts (BWPs) for different services to address the differences in frame structure and reference signal structure between MBMS and ordinary unicast;

[0018] 5) Dynamic scheduling of MBMS control information, which improves the efficiency of MBMS and unicast multiplexing in a subframe of a downlink radio frame.

[0019] The proposed sub-slot-based allocation together with BWP allocation can overcome the problems of differences in frame structure and reference signals for unicast and MBMS.

[0020] The sub-slot based method proposed in this disclosure enables the UE to have innovative receiving and decoding behaviors 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 use only one time domain resource unit to receive and decode MBMS and unicast services simultaneously. This is an innovation on the UE side. Brief Description of the Drawings

[0021] To illustrate the embodiments of this disclosure or related technologies more clearly, the following drawings will be described when briefly introducing the embodiments. Obviously, the drawings are only some embodiments of this disclosure, and those of ordinary skill in the art can obtain other drawings based on these drawings.

[0022] Figure 1 is a schematic diagram showing a system according to an embodiment of this disclosure.

[0023] Figure 2 is a schematic diagram showing an example of a 5G core network.

[0024] Figure 3 is a schematic diagram showing a mobile terminal and a network performing a method according to an embodiment of this disclosure.

[0025] Figure 4 is a flowchart showing a method according to an embodiment of this disclosure.

[0026] Figure 5 is a schematic diagram showing an indication message and a downlink reconfiguration in a single-frequency band MBMS deployment scenario.

[0027] Figure 6 is a schematic diagram showing an example of radio resource allocation based on frames and sub-frames to MBMS services.

[0028] Figure 7 is a schematic diagram showing an example of radio resource allocation based on frames to MBMS and unicast services.

[0029] Figure 8 is a schematic diagram showing an example of radio resource allocation based on sub-frames to MBMS and unicast services.

[0030] Figure 9 is a schematic diagram showing an example of radio resource allocation based on sub-slots to MBMS and unicast services.

[0031] Figure 10 is a block diagram of a system for wireless communication according to an embodiment of this disclosure. Detailed Description of the Embodiments

[0032] The technical content, structural features, achieved objectives, and effects of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. Specifically, the terms in the embodiments of the present disclosure are only used to illustrate the purpose of the embodiments of the present disclosure and are not used to limit the present disclosure.

[0033] In the disclosed method, each of a plurality of user equipments (UEs) sends an indication message to the network, the indication message including information about the MBMS and unicast services that the UE intends to perform or that are available, a list of frequencies, and the reception mode of the UE. The UE can include reception modes for unicast, MBMS, and both unicast and MBMS reception simultaneously. Based on the received message, the network can determine that for any given subframe of an NR downlink radio frame, each expected service is allocated a portion or a part of the subframe. A portion of the subframe can include half of the subframe, i.e., a sub-slot or a mini-slot. The network configures a downlink dedicated BWP for each sub-slot or mini-slot. For example, the network can configure a dedicated downlink BWP with a physical multicast channel (PMCH) and a multicast control channel (MCCH) for MBMS, and can also configure a dedicated downlink BWP 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 both MBMS and unicast services in any given subframe and radio frame.

[0034] In the description, the expected service in the present disclosure can represent one of the service types of broadcast, multicast, groupcast, and unicast services that the UE will or intends to receive. The frequency can represent a frequency range or a frequency band defined based on the frequency used to transmit at least one expected service. The downlink configuration includes radio resource configuration and bandwidth part (BWP) configuration for the expected service. The radio resource configuration allocates a first set of sub-slots in the radio frame to a first expected service and allocates a second set of sub-slots in the radio frame to a second expected service. The bandwidth part configuration allocates a first bandwidth part to the first set of sub-slots associated with the first expected service and allocates a second bandwidth part to the second set of sub-slots associated with the second expected service. The downlink configuration can be included in the MBSFN area information and transmitted in the system information block (SIB).

[0035] Referring to Figure 1 , UE 10a, UE 10b, base station 200a, and network entity device 300 execute the method according to the embodiments of the present disclosure. The connections between the devices and the device components are in Figure 1Shown as lines and arrows. UE 10a may include a processor 11a, a memory 12a, and a transceiver 13a. UE 10b may include a processor 11b, a memory 12b, and a transceiver 13b. Base station 200a may include a processor 201a, a memory 202a, and a transceiver 203a. Network entity device 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. 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 operably stores various programs and information to operate the connected processor. Each of the transceivers 13a, 13b, 203a, and 303 is operably coupled to the connected processor to transmit and / or receive radio signals. Base station 200a may be one of an eNB, a gNB, or other radio nodes.

[0036] 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 chip sets, logic circuits, and / or data processing devices. Each of the memories 12a, 12b, 202a, and 302 may include a read-only memory (ROM), a random-access memory (RAM), a flash memory, a memory card, a storage medium, 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 by modules, processes, functions, entities, etc. that execute the functions described herein. These modules may be stored in the memory and executed by the processor. The memory may be implemented inside or outside the processor, and those may be communicatively coupled to the processor in various ways known in the art.

[0037] Network entity device 300 may be a node in a central network (CN). The CN may include an LTE CN or a 5G core (5GC), which may include a user plane function (UPF), a session management function (SMF), a mobility management function (AMF), a unified data management (UDM), a policy control function (PCF), a control plane (CP) / user plane (UP) separation (CUPS), an authentication server (AUSF), a network slice selection function (NSSF), a network exposure function (NEF), and other network entities.

[0038] The 5G NR system reuses the current unicast service architecture and processes as much as possible to deliver MBMS services. For example, refer to Figure 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 through the Npcf or Nnef interface. The Network Exposure Function (NEF) and the Policy Control Function (PCF) 213 are 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 functions of the SMF 216 and the User Plane Function (UPF) are enhanced to support the configuration / control of MBMS flows. The Access and Mobility Function (AMF) 215 is also enhanced to support the management of the transmission resources for MBMS across the Next Generation Radio Access Network (NG-RAN) nodes 210 and 211. The interfaces N2, N3, N6, and N7 are defined in the 5G related standards.

[0039] The MBMS operations are detailed below. In the description, the disclosed method is performed in a system including multiple UEs and a network. The network may include at least one of a base station 200a and a network entity device 300. The UEs may include UEs 10a and 10b.

[0040] To transmit MBMS in the same LTE frame with unicast services, the MBMS related network entities may combine the transmission of the LTE Physical Downlink Shared Channel (PDSCH) with the Physical Multicast Channel (PMCH) in the same LTE radio frame. The UEs supporting MBMS may camp on an "RRC_IDLE" LTE cell, configure the access stratum, and read the system information SIB2 broadcast by the cell on the Broadcast Control Channel (BCCH) to discover the 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 transmissions on the PMCH and which subframes are reserved for unicast transmissions on the PDSCH. The repetition period of the MBSFN subframes is from 1 to 32 frames and does not interfere with the subframes used for paging or synchronization signals. After determining the subframes allocated for MBMS, the UEs intending to receive MBMS services may continue to read SIB13, which carries the MBSFN area configuration information and the Media Access Control (MAC) control element for the Multicast Channel (MCH) Scheduling Information (MSI). The UE may interpret SIB13 to obtain the following information:

[0041] (1) The MBSFN area identifier for each area supported by the cell;

[0042] (2) Information about the Multicast Control Channel (MCCH), including the MCCH repetition period (e.g., 32, 64, … or 256 frames), the MCCH offset (e.g., 0, 1, … or 10 frames), the MCCH modification period (e.g., 512 or 1024 frames), the Modulation and Coding Scheme (MCS), and the sub - frame allocation information of the MCCH indicated by the repetition period and the offset; and

[0043] (3) MCCH change notification configuration.

[0044] The UE can interpret the obtained information to receive the MCH channel carrying the Radio Resource Control (RRC) signaling message regarding the MBSFN area configuration. Each MBSFN area is associated with an MBSFN area configuration message. The MBSFN area configuration message includes:

[0045] (1) The Temporary Mobile Group Identity (TMGI) and the session identifier of each Multicast Traffic Channel (MTCH) identified by the logical channel identifier in each PMC;

[0046] (2) The allocated resources of each PMCH within the area, and the allocation period (e.g., 4, 8, … or 256 frames) of the allocated resources of all PMCHs within the area; and

[0047] (3) The MCH Scheduling Period (MSP) for transmitting the MSI MAC control element, e.g., 8, 16, … or 1024 radio frames.

[0048] The MSI MAC control element is transmitted in the first sub - frame of each scheduling period of the PMCH. The MSI indicates the end of the frames and sub - frames of each MTCH within the PMCH of the UE. The UE can read this control element to receive an instance of the MTCH channel. To determine the frequencies at which the UE receives the MBMS services, the UE can check the User Service Description (USD) and / or read SIB15, which includes a list containing the current frequency and adjacent frequencies, where each frequency in the list is associated with a list of Multicast - Broadcast Single - Frequency Network Area Identifiers (SAIs) supported by the corresponding frequency, and the USD includes the TMGI corresponding to each MBMS SAI and also includes information associating the TMGI and the SAI. For one or more interested MBMS services, the UE can use the information provided by SIB15 and USD to determine the MBMS SAI associated with the corresponding interested TMGI, and then specify one or more frequencies associated with the MBMS SAI as the frequencies of interest. After determining one or more frequencies of interest, the UE can send an RRC signaling message called the MBMS Interest Indication message to the network to notify about the expected MBMS service or services provided by the corresponding frequency or frequencies.

[0049] The present disclosure provides a method that allows one or more UEs (e.g., one or both of UEs 10a and 10b) to receive MBMS and unicast services in a 5G NR system. Referring to Figure 3 , the UE is in the RRC connected mode (step 310). The UE in the RRC connected mode determines the expected services of the expected service types (step 311), and sends an indication message including the expected service IDs of the services associated with the expected service types, carrier frequencies, and reception modes to the network (NW), e.g., one or both of base stations 200a and NW entity 300 (step 312). In response to the indication message, the NW determines the radio resource configuration of sub-slots indicating different services assigned to different service types, and the BWP configuration that configures different DL BWPs for different services, and sends the configuration to the UE (step 313). The NW sends a downlink configuration to the UE and sends a radio frame to the UE according to the downlink configuration (step 314). The NW sends a first radio resource unit of a first expected service and a second radio resource unit of a second expected 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. Figure 3 The method of

[0050] Referring to Figure 4 , the UE in the RRC connected mode determines one or more expected services of one or more service types and sends an indication message to the NW, e.g., one or both of base stations 200a and NW entity 300. The service types include MBMS, unicast, and both MBMS and unicast simultaneously. The UE generates and sends an indication message indicating a list of expected services (block 400). The indication message includes a list of one or more expected services, a list of service carrier frequencies, and the reception mode of the UE. The list of expected services is a list of radio data bearers of ongoing or expected services. For example, the radio data bearer can be identified by a service identity (ID). The UE can periodically send the indication message at the granularity level of one NR radio frame. The message can also include a list of frequencies of ongoing or expected MBMS and unicast services and the currently supported reception mode of the UE. The currently supported reception mode of the UE can include one of only unicast, only MBMS, and both MBMS and unicast reception modes.

[0051] The NW receives an indication message from the UE and, in response to the indication message, determines the 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 BWPs (bandwidth parts) to the sub - slots (block 402). Specifically, the NW receives an indication message indicating a first expected service of a first service type and a second expected service of a second service type. One of the first service type and the second service type is a unicast service, and the other of the first service type and the second service type is a non - unicast service, such as broadcast, multicast, or groupcast. The NW determines a radio resource configuration that allocates a first set of sub - slots in a radio frame to the first expected service and a second set of sub - slots in the radio frame to the second expected service. The NW determines a bandwidth part configuration that allocates a first bandwidth part to the first set of sub - slots associated with the first expected service and a second bandwidth part to the second set of sub - slots associated with the second expected service. The BWP of a sub - slot (mini - slot) starts from the beginning of the sub - slot in the time domain. The NW configures one of the BWPs allocated for the MBMS service on the PMCH and one of the BWPs allocated for the unicast service on the PDSCH (block 403).

[0052] The NW generates an NR downlink radio frame to include the expected services of the respective service types and sends the downlink frame and the downlink configuration to the UE (block 404). The downlink configuration includes radio resource allocation for the expected services of the only - MBMS, only - unicast, or both - MBMS - and - unicast service types. The radio frame of the unicast service type can be transmitted on the PDSCH, while the radio frame of the MBMS service type can be transmitted on the PMCH. The radio frame for both unicast and MBMS transmission can be transmitted on the PDSCH and the PMCH. The downlink configuration can be transmitted in downlink control information (DCI) or RRC signaling. The UE receives and decodes the downlink configuration and receives the downlink transmission including the downlink frame according to the configuration (block 405).

[0053] On the UE side, at least one UE sends an indication message, which indicates a first expected service of a first service type and a second expected service of a second service type. One of the first service type and the second service type is a unicast service, and the other of the first service type and the second service type is a non-unicast service. The UE receives a downlink configuration in response to the indication message. The downlink configuration includes radio resource configuration and bandwidth part configuration. The radio resource configuration allocates a first set of sub-slots in a radio frame to the first expected service and a second set of sub-slots in the radio frame to the second expected service. The bandwidth part configuration allocates a first bandwidth part to the first set of sub-slots associated with the first expected service and a second bandwidth part to the second set of sub-slots associated with the second expected service. The UE receives and decodes a downlink frame carrying the first expected service and the second expected service according to the downlink configuration.

[0054] Examples of the disclosed method using the proposed new IEs are described in detail below. The NW can interpret the IEs to allocate and configure PDSCH and PMCH transmissions in the downlink.

[0055] Refer to Figure 5 , in an example of a single-band MBMS deployment, a UE in the RRC connected mode camps on a frequency band F1 in a NW with a single-band deployed MBMS and intends to receive the MBMS service. The UE may initially intend to receive two MBMS services, such as a news service (S1) and a sports service (S2), and also receive a unicast service (S3), such as a file download, simultaneously. The UE can send an MBMS interest indication message 501 to the NW to indicate the expected MBMS services S2 and S3 and the unicast service S3 (step 501). As Figure 5 shown, the indication message can be represented by message M1: [(S1, S2), (S3), (F1), simultaneously]. Based on the content of the messages received from all UEs in the network, the network determines the sub-slots allocated to different services based on the numbers of the expected MBMS and / or unicast services 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 numbers of the sub-slots in the radio frame to be allocated to the expected MBMS services and the numbers of the sub-slots in the radio frame to be allocated to the expected unicast services.

[0056] As Figure 5As shown, the network configures the MBMS downlink bandwidth part in the sub - slots within radio frame 1 of the PMCH channel allocated to the MBMS service, and configures the unicast downlink bandwidth part in the sub - slots within radio frame 1 of the PDSCH channel allocated to the unicast service. The network sends a downlink configuration including the downlink radio resource configuration and the BWP configuration to the UE (step 502). For example, the BWP configuration may include a bitmap indicating the bandwidth part allocation. The UE can use the bitmap to decode the configuration 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. As Figure 5 As shown, the NW configures the entire downlink radio frame 2 to contain only the PMCH channel for the MBMS service. Similarly, when the MBMS services S1 and S2 are stopped and the unicast service S3 is running, the NW configures the entire downlink radio frame 2 to contain only the PDSCH channel for the unicast service S3. Thus, the disclosed method provides flexibility for radio resource allocation for MBMS and unicast transmissions. One radio frame carries MBMS service sub - frames and unicast service sub - frames. Note that according to the current LTE design, some sub - frames are reserved for paging and synchronization, but this may be variable.

[0057] In one embodiment of the present disclosure, the UE receives a first radio resource unit for a first expected service and a second radio resource unit for a second expected service according to the downlink configuration. The first radio resource unit and the second radio resource unit may be sub - frames, sub - slots or mini - slots, which are multiplexed into different time slots on the same frequency band F1.

[0058] The UE can send an information element to the network in the SC - PTM and MBSFN operation modes to indicate the MBMS service list. The network receives the information element indicating the MBMS service list desired by the UE in the SC - PTM and MBSFN operation modes and uses this information element to determine the allocation of unicast services and multicast / broadcast services on the downlink frame.

[0059] Embodiments of the disclosed method are described in detail below.

[0060] According to TS 36.331, the UE obtains the MBMS subframe allocation configuration from SystemInformationBlockType2 and receives MBMS according to the MBMS subframe allocation. The information element (IE) mbsfn-SubframeConfigList defines the subframe allocation configuration using the parameters of the mbsfn-SubframeConfig IE. The mbsfn-SubframeConfig indicates the radio frames reserved for MBMS transmission and the subframe configuration in the reserved radio frames. 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 Section 6.3.7 of TS36.331, the MBSFN-SubframeConfig IE contains:

[0061] 1), the radioFrameAllocationPeriod IE and the radioFrameAllocationOffset IE are used to define the radio frames allocated for MBSFN; and

[0062] 2), the subframeAllocation IE includes a bitmap that defines the subframes allocated for MBSFN within the MBMS radio frame.

[0063] The bitmap is 6 bits (6bits) for the period of one frame and 24 bits (24bits) for the period of four consecutive radio frames. Refer to Figure 6 , for the bitmap, the following mapping applies:

[0064] 1), the bits with binary value "1" in the bitmap indicate that the corresponding subframes associated with these bits are allocated to MBSFN;

[0065] 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

[0066] 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 Figure 6 shown.

[0067] According to the MBSFN design in TS 36.331 above, the MBMS radio frame allocation determined by MBSFN-SubframeConfig of SystemInformationBlockType2 is statistically defined using the following equation: [SFN mode N = X], where N = radioFrameAllocationPeriod and X = radioFrameAllocationOffset( Figure 8 ). The following are the limitations of this type of static allocation:

[0068] 1) The multiplexing of MBMS and unicast as a static allocation 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.

[0069] 2) When few or no UEs intend to receive MBMS, the waste of radio frame resources as a static allocation results in reserved frame resources for unicast services.

[0070] 3) MBMS service latency, because static allocation requires UEs 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.

[0071] The first embodiment of the disclosed method dynamically allocates radio frames for MBMS according to the number and reception mode of the expected services of the UE. The information element in the radio resource configuration includes a bitmap that indicates that the first set of subframes in the radio frame is allocated to the first expected service, and the second set of subframes in the radio frame is allocated to the second expected service. The expected services can include MBMS and / or unicast. Referring to Table 1, new parameters such as RadioframeRepetionPeriodNR are proposed in the disclosed method as elements of MBSFN-SubframeConfig-NR and MBSFN-SubslotConfig-NR in NR to define and schedule the reception period of the radio frames for carrying MBMS. RadioframeRepetionPeriodNR includes the parameter oneFrameNR representing the repetition period of one frame and the parameter fourFramesNR representing the repetition period of four frames. The parameter oneFrameNR includes the bitmap subslotsBitmapOneFrame. The parameter fourFramesNR includes the bitmap subslotsBitmapOneFrame. For example, the scheduling of MBMS can be defined for each radio frame or every four radio frames, denoted as rf1 or rf4 respectively in Table 1. As Figure 8As shown, the radio frame is expected to be used for MBMS transmission. Through dynamic allocation, the NR radio frame can be allocated to MBMS, unicast, or both MBMS and unicast transmissions simultaneously. Radio resources such as subframes or sub-slots in the NR radio frame can be allocated to the MBMS service and the unicast service according to the expected MBMS and unicast services indicated by the UE. The radio resources allocated to the expected MBMS and unicast services indicated by the UE can be represented by a percentage in the radio frame.

[0072] Table 1: MBSFN-SubframeConfig IE proposed for NR MBMS

[0073]

[0074] A bitmap is defined in the subframeAllocation IE to indicate the subframes reserved for MBSFN within the radio frame for MBMS. The bitmap can be 6 bits for the repetition period of one radio frame, or 24 bits for the repetition period of four consecutive radio frames. This bitmap defines the radio resource allocation for MBMS at a granularity level as low as one subframe. Referring to Figure 7 , for example, any particular subframe can be allocated to unicast transmission on the PDSCH channel or MBMS transmission on the PMCH, but not to both simultaneously.

[0075] In a second embodiment of the disclosed method, the information element in radio resource configuration includes a bitmap that indicates that a first set of sub - slots in a radio frame is allocated to a first expected service, and a second set of sub - slots in the radio frame is allocated to a second expected 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 at a finer granularity level than the current MBMS design and minimize latency, the present disclosure re - defines the bitmap indicated by the subframeAllocation IE to indicate sub - slot - based allocation, taking into account the differences in sub - carrier spacing and the number of sub - slots supported by each sub - carrier spacing, given by subslotsBitmapOneFrame, subslotsBitmapFourFrames, and the parameter maxnrofsubslotsNR, which indicate the bitmap length according to the NR sub - carrier spacing (see Table 3). Note that, similar to LTE, the new bitmap in NR can also be set by subslotsBitmapOneFrame for a repetition period of one radio frame. Alternatively, the new bitmap in NR can be set by subslotsBitmapFourFrames for a repetition period of four radio frames. The radio resource configuration further allocates sub - slots for paging and synchronization. A major advantage 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 sub - frames are reserved for paging and synchronization, which increases the resource utilization of MBMS by 80%, while the resource allocation based on sub - frames is 60%.

[0076] Table 2: Example of MBMS sub - slot allocation in NR

[0077]

[0078] Table 3

[0079]

[0080]

[0081] In the current MBMS design, the SIB13 area configuration message, including MBSFNAreaConfiguration, MBMS - NotificationConfig, and MBSFN - AreaInfoList IE, is sent from the network to the UE. The subframeAllocationIE is used to define the sub - frames allocated for MBSFN transmission.

[0082] The radio resource configuration can be sent in a system information block including at least one of a common sub - slot allocation mode, MBMS notification configuration, and MBSFN area information.

[0083] In a third embodiment of the disclosed method, the network provides the newly proposed sub-slot based bitmap to the UE via a region configuration message. The UE decodes the bitmap to determine the sub-slot based resource allocation. The region configuration message can be carried in LTE SIB13 or any other newly defined NR MBMS related SIB to indicate the sub-slot based bitmap using the parameters of the CommonSubslot-AllocPatternList-NR of the MBSFNAreaConfiguration-NR IE as shown in Table 4, the sl-AllocInfo-nr of the MBMS-NotificationConfig-NR IE as shown in Table 5, and the subSlot-AllocInfo-NR of the MBSFN-AreaInfoList-NR IE as shown in Table 7. The parameter represented by the CommonSubslot-AllocPatternList-NR is the MBSFN-SubframeConfig-NR. The CommonSubslot-AllocPatternList-NR represents a sub-slot based bitmap that contains a list of MBSFN-SubframeConfig-NR for different regions. The radio resource configuration can be sent in the system information block including the MBSFN area information. The MBSFN area information includes the scheduling information and configuration for the MCH, MCCH, and MTCH, the MCCH notification, and the MCS associated with at least one of the first expected service and the second expected service.

[0084] Table 4: MBSFNAreaConfiguration-NR IE for NR MBMS

[0085]

[0086] Table 5: MBMS-NotificationConfig-NR IE for NR MBMS

[0087]

[0088]

[0089] After detecting the subframe configuration or sub-slot configuration in NR, the UE continues to read SIB13 (SystemInformationBlockType13) or the newly defined SIB in NR to determine the MBSFN area configuration. The MBSFN-AreaInfoList IE contains:

[0090] 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 how to access MTCH, MCCH notification, and MCS for the expected service; and

[0091] 2) Information regarding MBSFN subframe allocation, including indicating the repetition period and subframe offset of MBSFN subframes.

[0092] 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. The current MBMS design cannot support timely and efficient multiplexing of MBMS and unicast within a range smaller than a subframe, which may increase latency and thus is not suitable for 5G time-sensitive use cases such as public safety, mission-critical, V2X applications, and group communication.

[0093] Table 6: Differences in frame structures used for MBMS and unicast

[0094]

[0095] A fourth embodiment of the disclosed method is provided to address the differences in the physical layer (PHY) frame / subframe structure and reference signal structure for MBMS and unicast services and to achieve a granularity level of MBMS and unicast multiplexing within a fraction of a single subframe. Referring to Table 8, the method uses a new IE, namely MBSFN-SubslotsBWPConfig within MBSFN-AreaInfo-NR, to allocate different types of bandwidth parts for different services. Each service can be configured with different types of CP, CP duration, carrier spacing, number of symbols and channels, and reference signals. The MBSFN-SubslotsBWPConfig IE is used to configure the bandwidth part of the MBSFN area and contains the following IEs:

[0096] 1), BWP-MbmsDownlinkBWP: A UE-specific BWP configured to include the PMCH and MCCH channels configured for MBMS transmission and the physical downlink control channel (PDCCH) channel for tracking MCCH changes, including MCCH notification changes broadcast on the PDCCH;

[0097] 2), BWP-UnicastDownlinkBWP: A UE-specific BWP configured to include the configuration of PDCCH and PDSCH for unicast transmission;

[0098] 3)、BWP-MBSFNDownlink: A cell-specific BWP used to perform the initial access procedure;

[0099] 4)、MBMS-SubSlotsConfig: Parameters for configuring the transmission period of MBMS sub-slots (mini-slots) within an NR downlink radio frame; and

[0100] 5)、UNICAST-SubSlotsConfig: Parameters for configuring the transmission period of unicast sub-slots (mini-slots) within an NR downlink radio frame.

[0101] Dynamic MBMS scheduling in NR can be achieved by configuring the MBMS control channel MCCH and PMCH within the BWP allocated to each MBSFN area. In the disclosed method, there is no need for a fixed scheduling of the MCCH repetition period and MCCH offset as used in LTE MBMS, because the MCCH control channel is automatically scheduled within the configured BWP.

[0102] Table 7: MBSFN-AreaInfoList-NR IE proposed for NR MBMS

[0103]

[0104] Table 8

[0105]

[0106] In the fifth embodiment of the disclosed method, the bandwidth part includes a configuration IE, namely MBSFN-SubslotsBWPConfigIE, which defines the transmission periods of MBMS and unicast sub-slots within an NR time-division duplex (TDD) / frequency-division duplex (FDD) radio frame. Referring to Table 9, MBMS-SubSlotsConfig uses the bitmap configured in the MBSFN-SubframeConfig-NR IE to determine the transmission period of MBMS within the NR downlink radio frame, and UNICAST-SubSlotsConfig uses the bitmap configured in the MBSFN-SubframeConfig-NR IE to determine the transmission period of unicast within the NR downlink radio frame. For example, the bitmap representing both unicast and MBMS in the fifth embodiment can be

[01101] , where "0" represents sub-slots for one or more unicast services, and "1" represents sub-slots for one or more MBMS services. Therefore, the unicast bitmap UNICAST-SubSlotsConfig can be [0xx0x], and the MBSM bitmap MBMS-SubSlotsConfig can be [x11x1], where x is a null value. Refer to Figure 9, in MBMS-SubSlotsConfig and UNICAST-SubSlotsConfig, the IE sub-slot types include the parameters mbm-subslot and unicast-subslot. The parameter mbm-subslot represents the number of the MBMS sub-slot, the parameter unicast-subslot represents the number of the unicast sub-slot, and the parameter SubSlotIndex represents the index of the unicast or MBMS sub-slot, that is, the index within the NR TDD downlink (DL) / uplink (UL) or FDD DL radio frame period.

[0107] Table 9

[0108]

[0109]

[0110] Figure 10 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. The embodiments described herein can be implemented in the system using any appropriately configured hardware and / or software. Figure 10 The system 700 is shown. The system 700 includes at least a radio frequency (RF) circuit 710, a baseband circuit 720, an application circuit 730, a memory / storage 740, sensors 770, and an input / output (I / O) interface 780 that are coupled to each other as shown.

[0111] The application circuit 730 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors (such as graphics processors and application processors). The processors may be coupled to 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.

[0112] The baseband circuit 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 circuit may handle various radio control functions that enable communication with one or more wireless networks via a radio frequency circuit. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuit may provide communication compatible with one or more wireless technologies. For example, in some embodiments, the baseband circuit may support communication with an evolved universal terrestrial radio access network (EUTRAN) and / or other wireless metropolitan area networks (WMAN), wireless local area networks (WLAN), wireless personal area networks (WPAN). Embodiments in which the baseband circuit is configured to support wireless communication for more than one wireless protocol may be referred to as multi-mode baseband circuits. In various embodiments, the baseband circuit 720 may include circuitry that operates using signals that are not strictly considered to be within the baseband frequency. For example, in some embodiments, the baseband circuit may include circuitry that operates using signals having an intermediate frequency, where the intermediate frequency is between the baseband frequency and the radio frequency.

[0113] The RF circuit 710 may communicate with a wireless network using modulated electromagnetic radiation via a non-solid medium. In various embodiments, the RF circuit may include switches, filters, amplifiers, etc. to facilitate communication with the wireless network. In various embodiments, the RF circuit 710 may include circuitry that operates using signals that are not strictly considered to be within the radio frequency. For example, in some embodiments, the RF circuit may include circuitry that operates using signals having an intermediate frequency, where the intermediate frequency is between the baseband frequency and the radio frequency.

[0114] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above for a user equipment, eNB, or gNB may be embodied, in whole or in part, as one or more of the RF circuit, baseband circuit, and / or application circuit. As used herein, "circuitry" may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group of processors), and / or a memory (shared, dedicated, or group of memories), combinational logic circuitry, and / or other suitable hardware components that execute one or more software or firmware programs, or a portion of the foregoing hardware components or including the foregoing hardware components, that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in one or more software or firmware modules, or the functionality associated with the circuitry may be implemented by one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuit, application circuit, and / or memory / storage may be implemented together on a system on a chip (SOC).

[0115] The memory / storage 740 can be used to load and store data and / or instructions for the system, such as. The memory / storage of one embodiment can include any combination of suitable volatile memory (such as dynamic random access memory (DRAM)) and / or non-volatile memory (such as flash memory). In various embodiments, the input / output interface 780 can include one or more user interfaces and / or peripheral component interfaces, where the user interface is designed to enable a user to interact with the system, and the peripheral component interface is designed to enable peripheral components to interact with the system. The user interface can include, but is not limited to, a physical keyboard or keypad, a touchpad, speakers, a microphone, etc. The peripheral component interface can include, but is not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power interface.

[0116] In various embodiments, the sensor 770 can include one or more sensing devices to determine environmental conditions and / or location information related to the system. In some embodiments, the sensor can include, but is not limited to, a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit can also be part of or interact with the baseband circuit and / or RF circuit to communicate with components of a positioning network (such as Global Positioning System (GPS) satellites). In various embodiments, the system 700 can 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, etc. In various embodiments, the system can have more or fewer components and / or a different architecture. Where appropriate, the methods described herein can be implemented as a computer program. The computer program can be stored on a storage medium, such as a non-transitory storage medium.

[0117] Embodiments of the present disclosure are combinations of technologies / processes that can be adopted in 3GPP specifications to create end products.

[0118] Those of ordinary skill in the art understand 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 run in hardware or software depends on the application conditions and design requirements of the technical solution. Those of ordinary skill in the art can use different ways to implement the functions of each specific application, and these implementations should not exceed the scope of the present disclosure. Those of ordinary skill in the art can understand that he / she can refer to the working processes of the systems, devices, and units in the above embodiments, because the working processes of the above systems, devices, and units are basically the same. For the sake of description and brevity, these working processes will not be described in detail again.

[0119] It should be understood that the systems, devices, and methods disclosed in the embodiments of the present disclosure can be implemented in other ways. The above embodiments are merely exemplary. The division of units is only based on logical functions, and there are other divisions in implementation. Multiple units or components may be combined or integrated into another system. It is also possible to omit or skip certain features. On the other hand, the shown or discussed mutual coupling, direct coupling, or communication coupling is operated through some ports, devices, or units, either indirectly or through electrical, mechanical, or other forms of communication.

[0120] The units that are separated components for illustration purposes are physically separated or not. A unit is a physical unit or not a physical unit, that is, located in one place or distributed over multiple network units. Part or all of the units are used according to the purpose of the embodiment. In addition, each functional unit in each embodiment can be integrated in a processing unit, can be physically independent, or integrated in a processing unit with two or more units.

[0121] If a software functional unit is implemented, used, and sold as a product, it can be stored in a readable storage medium of a computer. Based on this understanding, the technical solution proposed by the present disclosure can be substantially or partially implemented in the form of a software product. Or, a part of the technical solution beneficial to conventional technologies can be implemented in the form of a software product. The software product in the computer is stored in a storage medium, and the storage medium includes multiple commands for a computing device (such as a personal computer, a server, or a network device) to run all or part of the steps disclosed in the embodiments of the present disclosure. The storage medium includes a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other media capable of storing program codes.

[0122] In the present disclosure, dynamic scheduling is provided to allocate radio resources to services of different service types, and the granularity level is as low as a part of a subframe or a sub-slot (mini-slot). Different BWPs are configured to be associated with services of different service types. The disclosed method provides radio access network (RAN) attractiveness, including:

[0123] 1) A new UE MBMS indication method, which provides an MBMS and / or unicast frequency list, a service list, and a reception mode, enabling the network to multiplex MBMS and unicast transmissions simultaneously in at least one downlink radio frame;

[0124] 2) A new radio frame allocation mechanism for MBMS that is more flexible than the current MBMS resource allocation;

[0125] 3) Subframe allocation / configuration mechanism that allows for efficient multiplexing of MBMS and unicast service transmissions in an NR physical downlink radio frame and achieves multiplexing gain within a small portion of the subframe;

[0126] 4) Allocate different bandwidth parts (BWPs) for different services to address the differences in frame structure and reference signal structure between MBMS and ordinary unicast;

[0127] 5) Dynamic scheduling of MBMS control information, which improves the efficiency of MBMS and unicast multiplexing in a downlink radio frame.

[0128] The proposed sub-slot based allocation together with BWP allocation can overcome the problems of differences in frame structure and reference signals for unicast and MBMS.

[0129] The proposed sub-slot based allocation together with BWP allocation can overcome the problems of differences in frame structure and reference signals for unicast and MBMS.

[0130] The sub-slot based method proposed in this disclosure enables the UE to have innovative receiving and decoding behaviors to receive multiplexed services simultaneously. For example, in the absence of 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 use only one time-domain resource unit to receive and decode MBMS and unicast services simultaneously. This is an innovation on the UE side.

[0131] Although the present disclosure has been described in connection with the embodiments that are considered to be the most practical and preferred, it should be understood that the present disclosure is not limited to the disclosed embodiments, 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, which can be performed by a RAN radio node, characterized in that, Comprising: Receiving an indication message from a user equipment indicating a first expected service of a first service type and a second expected service of a second service type, wherein one of the first service type and the second service type is a unicast service via a physical downlink control channel, and the other of the first service type and the second service type is a non-unicast service via a physical multicast channel; Determining a radio resource configuration for the downlink in response to the indication message, which allocates a first set of sub-slots in a radio frame of the downlink to the first expected service, and allocates a second set of sub-slots in the radio frame to the second expected service; Determining a bandwidth part configuration for the downlink in response to the indication message, which allocates a first bandwidth part of the downlink to the first set of sub-slots associated with the first expected service, and allocates a second bandwidth part of the downlink to the second set of sub-slots associated with the second expected service; Transmitting a downlink configuration including the radio resource configuration and the bandwidth part configuration to the user equipment; And Transmitting a downlink frame carrying the first expected service and the second expected service to the user equipment according to the downlink configuration.

2. The method according to claim 1, wherein The indication message further includes a reception mode for receiving the first expected service and the second expected service.

3. The method according to claim 2, wherein The reception mode includes one of a unicast reception mode, a non-unicast reception mode, and a simultaneous unicast and non-unicast reception mode.

4. The method according to claim 3, wherein The non-unicast reception mode includes an MBMS reception mode, and the simultaneous unicast and non-unicast reception mode includes a simultaneous unicast and MBMS reception mode.

5. The method according to claim 1, characterized in that, The non-unicast service includes at least one of a broadcast service, a multicast service, and a groupcast service.

6. The method according to claim 1, wherein The radio resource configuration includes an information element, and the information element includes a bitmap, and the bitmap indicates that a first set of sub-frames in the radio frame is allocated to the first expected service, and a second set of sub-frames in the radio frame is allocated to the second expected service.

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

8. The method according to claim 1, wherein The radio resource configuration includes an information element, and the information element includes a bitmap, and the bitmap indicates that the first set of sub-slots is allocated to the first expected service, and the second set of sub-slots is allocated to the second expected service.

9. The method according to claim 8, wherein The bitmap indicates the indices of the first set of sub-slots and the second set of sub-slots.

10. The method according to claim 1, characterized in that, The radio resource configuration is transmitted in a system information block, and the system information block includes at least one of a common sub-slot allocation mode, an MBMS notification configuration, and an MBSFN area information.

11. The method according to claim 1, characterized in that The radio resource configuration is transmitted in a system information block including MBSFN area information, and the MBSFN area information includes scheduling information and configuration for MCH, MCCH, and MTCH, an MCCH notification, and an MCS associated with at least one of the first expected service and the second expected service.

12. The method according to claim 1, characterized in that, The radio resource configuration allocates sub - slots for paging and synchronization.

13. The method according to claim 1, characterized in that, The radio resource configuration is included in the MBSFN area information.

14. The method according to claim 1, wherein The bandwidth part configuration is included in the MBSFN area information, and the MBSFN area information includes: An information element for configuring a UE - specific BWP with PMCH and MCCH channels for MBMS transmission; An information element for configuring a UE - specific BWP with PDCCH and PDSCH for unicast transmission; An information element for a cell - specific BWP for performing an initial access procedure; A parameter for configuring the MBMS sub - slot transmission period within the radio frame; and A parameter for configuring the unicast sub - slot transmission period within the radio frame.

15. The method according to claim 1, wherein It further includes: Transmitting a first radio resource unit for the first expected service and a second radio resource unit for the second expected service according to the downlink configuration, where 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 in that, It includes: A transceiver; and A processor, connected to the transceiver and for performing the following steps, including: Receiving, from a user equipment, an indication message indicating a first expected service of a first service type and a second expected service of a second service type, where one of the first service type and the second service type is a unicast service through a physical downlink control channel, and the other of the first service type and the second service type is a non - unicast service through a physical multicast channel; Determining, in response to the indication message, a radio resource configuration of the downlink, which allocates a first set of sub - slots in the radio frame of the downlink to the first expected service and a second set of sub - slots in the radio frame to the second expected service; Determining, in response to the indication message, a bandwidth part configuration of the downlink, which allocates a first bandwidth part of the downlink to the first set of sub - slots associated with the first expected service and a second bandwidth part of the downlink to the second set of sub - slots associated with the second expected service; Transmitting a downlink configuration including the radio resource configuration and the bandwidth part configuration to the user equipment; and Transmitting a downlink frame carrying the first expected service and the second expected service to the user equipment according to the downlink configuration.

17. The device according to claim 16, characterized in that, The indication message further includes a reception mode for receiving the first expected service and the second expected service.

18. The device according to claim 17, characterized in that, The reception mode includes one of a unicast reception mode, a non - unicast reception mode, and a simultaneous unicast and non - unicast reception mode.

19. The device according to claim 18, characterized in that, The non - unicast reception mode includes an MBMS reception mode, and the simultaneous unicast and non - unicast reception mode includes a simultaneous unicast and MBMS reception mode.

20. The device according to claim 16, characterized in that, The non - unicast service includes at least one of a broadcast service, a multicast service, and a group - cast service.

21. The device according to claim 16, characterized in that, The radio resource configuration includes information elements, and the information elements include a bitmap which indicates that a first set of subframes in the radio frame is allocated to the first expected service and a second set of subframes in the radio frame is allocated to the second expected service.

22. The device according to claim 21, characterized in that, The bitmap is configured as a 6-bit bitmap for a repetition period of one radio frame and as a 24-bit bitmap for a repetition period of four consecutive radio frames.

23. The device according to claim 16, characterized in that, The radio resource configuration includes information elements, and the information elements include a bitmap which indicates that the first set of sub-slots is allocated to the first expected service and the second set of sub-slots is allocated to the second expected service.

24. The device according to claim 23, wherein The bitmap indicates the indexes of the first set of sub-slots and the second set of sub-slots.

25. The device according to claim 16, wherein, The radio resource configuration is transmitted in a system information block which includes at least one of a common sub-slot allocation mode, an MBMS notification configuration, and an MBSFN area information.

26. The device according to claim 16, characterized in that, The radio resource configuration is transmitted in a system information block including the MBSFN area information, and the MBSFN area information includes scheduling information and configuration for MCH, MCCH, and MTCH, MCCH notification, and an MCS associated with at least one of the first expected service and the second expected service.

27. The device according to claim 16, wherein, The radio resource configuration allocates sub-slots for paging and synchronization.

28. The device according to claim 16, characterized in that, The radio resource configuration is included in the MBSFN area information.

29. The device according to claim 16, wherein, The bandwidth part configuration is included in the MBSFN area information, and the MBSFN area information includes: An information element for a UE-specific BWP configured with PMCH and MCCH channels for MBMS transmission; An information element for a UE-specific BWP configured with PDCCH and PDSCH for unicast transmission; An information element for a cell-specific BWP for performing an initial access procedure; Parameters for configuring an MBMS sub-slot transmission period within the radio frame; and Parameters for configuring a unicast sub-slot transmission period within the radio frame.

30. The device according to claim 16, characterized in that, The processor is configured to perform the following steps: Transmit a first radio resource unit for the first expected service and a second radio resource unit for the second expected 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.

31. A chip, characterized in that, Including: A processor configured to call and run a computer program stored in a memory so that a device installed with the chip performs the method according to any one of claims 1 to 15.

32. A computer-readable storage medium storing 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.

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 one of claims 1 to 15.

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