MBS service semi-static scheduling method and device, terminal, and network equipment

Abstract

This application is a divisional application of 202080107425.6. Embodiments of the present application provide a method and apparatus, a terminal, and a network device for semi-persistent scheduling of MBS services. The method includes: a terminal device receiving first configuration information sent by a network device, wherein the first configuration information is used to determine N semi-persistent scheduling (SPS) configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

Description

[0001] This application is a divisional application. The application number of the parent application is 202080107425.6, the application date is December 11, 2020, and the name of the invention is "Semi-static scheduling method and device, terminal equipment, and network equipment for MBS services." Technical Field

[0002] The embodiments of the present application relate to the field of mobile communication technology, and in particular to a semi-static scheduling method and apparatus, terminal, and network equipment for Multicast Broadcast Service (MBS) services. Background Art

[0003] In the New Radio (NR) system, terminal devices need to receive MBS services in the Radio Resource Control (RRC) connected state, which places higher demands on the reliability of MBS services. How to use Semi-Persistent Scheduling (SPS) to transmit MBS services and improve the reliability of MBS service transmission is an issue that needs to be clarified. Summary of the Invention

[0004] Embodiments of the present application provide a semi-persistent scheduling method and apparatus, a terminal, and a network device for MBS services.

[0005] The semi-persistent scheduling method for MBS services provided in the embodiments of the present application includes:

[0006] The terminal device receives first configuration information sent by the network device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0007] The semi-persistent scheduling method for MBS services provided in the embodiments of the present application includes:

[0008] The network device sends first configuration information to the terminal device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0009] The semi-persistent scheduling device for MBS services provided in an embodiment of the present application is applied to a terminal device, and the device includes:

[0010] The receiving unit is configured to receive first configuration information sent by a network device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0011] The semi-persistent scheduling device for MBS services provided in an embodiment of the present application is applied to a network device, and the device includes:

[0012] A sending unit is used to send first configuration information to a terminal device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0013] The terminal device provided in the embodiment of the present application includes a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the semi-persistent scheduling method for MBS services.

[0014] The network device provided in an embodiment of the present application includes a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the semi-persistent scheduling method for MBS services.

[0015] The chip provided in the embodiment of the present application is used to implement the above-mentioned semi-static scheduling method for MBS services.

[0016] Specifically, the chip includes: a processor configured to call and run a computer program from a memory, so that a device equipped with the chip executes the aforementioned semi-static scheduling method for MBS services.

[0017] The computer-readable storage medium provided in the embodiments of the present application is used to store a computer program, which enables a computer to execute the above-mentioned semi-persistent scheduling method for MBS services.

[0018] The computer program product provided in the embodiments of the present application includes computer program instructions, which enable a computer to execute the above-mentioned semi-persistent scheduling method for MBS services.

[0019] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned semi-persistent scheduling method for MBS services.

[0020] Through the above technical solution, the network device configures one or more SPS configurations for transmitting MBS services to the terminal device, thereby enabling the MBS service to adopt frequency hopping and / or repeated transmission, thereby improving the transmission reliability of the MBS service. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0023] Figure 2 1 is a flow chart of a semi-persistent scheduling method for MBS services provided in an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of TB transmission in the MBS service provided in the embodiment of the present application. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of TB transmission in the MBS service provided in the embodiment of the present application. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of TB transmission in the MBS service provided in the embodiment of the present application. Figure 3 ;

[0027] Figure 6 This is a schematic diagram of the structure of the semi-static scheduling device for MBS services provided in the embodiment of the present application. Figure 1 ;

[0028] Figure 7 This is a schematic diagram of the structure of the semi-static scheduling device for MBS services provided in the embodiment of the present application. Figure 2 ;

[0029] Figure 8 This is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0030] Figure 9 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0031] Figure 10 It is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, 5G communication system or future communication system, etc.

[0034] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN), or the network device may be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

[0035] The communication system 100 also includes at least one terminal 120 located within the coverage area of ​​the network device 110. As used herein, "terminal" includes, but is not limited to, a connection via a wired line, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or another terminal configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, web browsers, organizers, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal may be referred to as an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

[0036] Optionally, the terminals 120 may perform device-to-device (D2D) communication with each other.

[0037] Optionally, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0038] Figure 1 One network device and two terminals are shown as an example. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminals within its coverage area. This embodiment of the present application does not limit this.

[0039] Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0040] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be called a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal 120 with communication functions. The network device 110 and the terminal 120 may be the specific devices described above and will not be repeated here; the communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0041] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0042] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

[0043] With the pursuit of speed, latency, high-speed mobility, energy efficiency and the diversity and complexity of services in future life, the 3GPP (3 rd The 3GPP (3rd Generation Partnership Project) international standards organization has begun developing 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC).

[0044] On the one hand, eMBB still aims to provide users with multimedia content, services, and data, and demand for this is growing rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, in urban areas, and in rural areas, its capabilities and requirements vary significantly. Therefore, it cannot be generalized and requires detailed analysis based on specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), and traffic safety. Typical characteristics of mMTC include high connection density, small data volumes, latency-insensitive services, low module costs, and long service life.

[0045] In the early days of NR deployment, achieving complete NR coverage was difficult, resulting in a typical network coverage model consisting of wide-area LTE coverage and isolated NR coverage. Furthermore, a large number of LTE deployments operate below 6 GHz, leaving limited spectrum available for 5G. Therefore, NR must explore spectrum applications above 6 GHz, despite the limited coverage and rapid signal fading in higher frequency bands. Furthermore, to protect mobile operators' initial investments in LTE, a tight interworking mode between LTE and NR was proposed.

[0046] RRC status

[0047] In order to reduce air interface signaling and quickly restore wireless connections and data services, 5G defines a new Radio Resource Control (RRC) state, namely the RRC inactive (RRC_INACTIVE) state. This state is different from the RRC idle (RRC_IDLE) state and the RRC active (RRC_ACTIVE) state.

[0048] 1) RRC_IDLE state (abbreviated as idle state): Mobility is based on UE cell selection and reselection, paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no UE context on the base station side and no RRC connection exists.

[0049] 2) RRC_CONNECTED state (also called connected state): An RRC connection exists, and a UE context exists on both the base station and the UE. The network knows the UE's location at the cell level. Mobility is controlled by the network. Unicast data can be transmitted between the UE and the base station.

[0050] 3) RRC_INACTIVE state (abbreviated as inactive state): Mobility is based on UE cell selection and reselection, there is a connection between CN and NR, the UE context exists on a certain base station, paging is triggered by RAN, and the RAN-based paging area is managed by RAN. The network side knows the UE location based on the RAN paging area level.

[0051] Multimedia Broadcast Multicast Service (MBMS)

[0052] MBMS is a technology that transmits data from one data source to multiple terminal devices by sharing network resources. While providing multimedia services, it can effectively utilize network resources and achieve broadcast and multicast of multimedia services at a higher rate (such as 256kbps).

[0053] Because MBMS spectrum efficiency is low and insufficient to effectively carry and support mobile TV services, 3GPP has explicitly proposed enhancing support for downlink high-speed MBMS services in LTE and has defined design requirements for the physical layer and air interface.

[0054] 3GPP Release 9 introduced evolved MBMS (eMBMS) into LTE. eMBMS introduced the concept of a single frequency network (SFN), namely, Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN). MBSFN uses a unified frequency to transmit service data simultaneously across all cells, while ensuring inter-cell synchronization. This approach significantly improves the overall signal-to-noise ratio distribution of the cell, and consequently, significantly increases spectrum efficiency. eMBMS implements service broadcast and multicast based on the IP multicast protocol.

[0055] In LTE or LTE-Advanced (LTE-A), MBMS only has a broadcast bearer mode, not a multicast bearer mode. In addition, the reception of MBMS services is applicable to terminal devices in an idle state or a connected state.

[0056] 3GPP R13 introduced the Single Cell Point To Multipoint (SC-PTM) concept, which is based on the MBMS network architecture.

[0057] MBMS introduces new logical channels, including the Single Cell-Multicast Control Channel (SC-MCCH) and the Single Cell-Multicast Transport Channel (SC-MTCH). SC-MCCH and SC-MTCH are mapped to the Downlink Shared Channel (DL-SCH). Furthermore, DL-SCH is mapped to the Physical Downlink Shared Channel (PDSCH). SC-MCCH and SC-MTCH are logical channels, DL-SCH is a transport channel, and PDSCH is a physical channel. SC-MCCH and SC-MTCH do not support Hybrid Automatic Repeat reQuest (HARQ) operations.

[0058] MBMS introduces a new System Information Block (SIB) type, namely SIB20. Specifically, the configuration information of SC-MCCH is transmitted through SIB20, and there is only one SC-MCCH in a cell. The configuration information of SC-MCCH includes: the modification period of SC-MCCH, the repetition period of SC-MCCH, and the radio frame and subframe for scheduling SC-MCCH. Furthermore, 1) the boundary of the modification period of SC-MCCH satisfies SFN mod m=0, where SFN represents the system frame number of the boundary, and m is the modification period of SC-MCCH configured in SIB20 (i.e., sc-mcch-ModificationPeriod). 2) The radio frame for scheduling SC-MCCH satisfies: SFN mod mcch-RepetitionPeriod=mcch-Offset, where SFN represents the system frame number of the radio frame, mcch-RepetitionPeriod represents the repetition period of SC-MCCH, and mcch-Offset represents the offset of SC-MCCH. 3) The subframe for scheduling SC-MCCH is indicated by sc-mcch-Subframe.

[0059] SC-MCCH is scheduled through the Physical Downlink Control Channel (PDCCH). On the one hand, a new Radio Network Temporary Identity (RNTI), namely the Single Cell RNTI (SC-RNTI), is introduced to identify the PDCCH (such as SC-MCCHPDCCH) used to schedule SC-MCCH. Optionally, the SC-RNTI is fixed to FFFC. On the other hand, a new RNTI, namely the Single Cell Notification RNTI (SC-N-RNTI), is introduced to identify the PDCCH (such as the notification PDCCH) used to indicate the change notification of SC-MCCH. Optionally, the SC-N-RNTI is fixed to FFFB; further, one of the 8 bits of DCI 1C can be used to indicate the change notification. In LTE, the configuration information of SC-PTM is based on the SC-MCCH configured by SIB20, and then the SC-MCCH configures the SC-MTCH, which is used to transmit service data.

[0060] Specifically, SC-MCCH only transmits one message (i.e., SCPTMConfiguration), which is used to configure the configuration information of SC-PTM. The configuration information of SC-PTM includes: Temporary Mobile Group Identity (TMGI), session ID, Group RNTI (G-RNTI), Discontinuous Reception (DRX) configuration information, and SC-PTM service information of neighboring cells. It should be noted that SC-PTM in R13 does not support the Robust Header Compression (ROHC) function.

[0061] The downlink discontinuous reception of SC-PTM is controlled by the following parameters: onDurationTimerSCPTM, drx-InactivityTimerSCPTM, SC-MTCH-SchedulingCycle, and SC-MTCH-SchedulingOffset.

[0062] When [(SFN*10)+subframe number]modulo(SC-MTCH-SchedulingCycle)=SC-MTCH-SchedulingOffset is satisfied, the timer onDurationTimerSCPTM is started;

[0063] When receiving downlink PDCCH scheduling, start the timer drx-InactivityTimerSCPTM;

[0064] Downlink SC-PTM services are received only when the timer onDurationTimerSCPTM or drx-InactivityTimerSCPTM is running.

[0065] SC-PTM service continuity uses the MBMS service continuity concept based on SIB15, namely the "SIB15 + MBMS Interest Indication" approach. Service continuity for idle terminal devices is based on the concept of frequency priority.

[0066] It should be noted that the MBMS services in the above solution include but are not limited to multicast services, groupcast services, and MBS services. The embodiment of this application takes the MBS service as an example for explanation, and the description of "MBS service" can also be replaced by "multicast service" or "groupcast service" or "MBMS service".

[0067] In NR, terminal devices need to receive MBS services in the RRC connected state, which places higher demands on the reliability of MBS services. How to use SPS to transmit MBS services and improve the reliability of MBS service transmission is a question that needs to be clarified. To this end, the following technical solutions are proposed in the embodiments of this application.

[0068] In the embodiment of the present application, the information configured by the SPS may refer to the following Table 1, including periodicity information, HARQ process (nrofHARQ-Processes, periodicityExt) information, PUCCH feedback resource (n1PUCCH-AN) information, MCS (mcs-Table) information, SPS configuration index (sps-ConfigIndex) information, HARQ process identifier offset (harq-ProcID-Offset) information, HARQ feedback codebook (harq-CodebookID) information, PDSCH aggregation factor (pdsch-AggregationFactor) information, etc. In addition, the information configured by the SPS may also include other information, as detailed below in the description of the embodiment of the present application.

[0069]

[0070]

[0071] Table 1

[0072] Figure 2 This is a flow chart of a semi-static scheduling method for MBS services provided in an embodiment of the present application. Figure 2 As shown, the semi-persistent scheduling method for MBS services includes the following steps:

[0073] Step 201: The network device sends first configuration information to the terminal device, and the terminal device receives the first configuration information sent by the network device. The first configuration information is used to determine N semi-static scheduling SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0074] In an embodiment of the present application, the network device may be a base station, such as a gNB.

[0075] (1) SPS configuration for MBS transmission

[0076] In the embodiment of the present application, the SPS configuration of the MBS transmission can be implemented through the first configuration information.

[0077] In an optional manner, the first configuration information is carried in RRC signaling.

[0078] In an optional manner, the first configuration information is carried in a BWP configuration or a serving cell configuration. Here, the BWP configuration is, for example, a BWP-DownlinkDedicated configuration, and the serving cell configuration is, for example, a ServingCellConfig.

[0079] It should be noted that if the first configuration information is carried in the BWP configuration, it means that the network device configures the first configuration information at a BWP granularity (per BWP). If the first configuration information is carried in the serving cell configuration, it means that the network device configures the first configuration information at a cell granularity (per cell).

[0080] In the embodiment of the present application, the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services. Here, the first configuration information can be implemented in the following ways:

[0081] Mode 1: The first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services.

[0082] Further, optionally, each of the N SPS configurations includes second indication information, where the second indication information is used to indicate MBS identification information associated with the SPS configuration.

[0083] Here, since the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services, all SPS configurations in the first SPS configuration list are used for transmitting MBS services.

[0084] Method 2: The first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, each of the N SPS configurations contains first indication information, and the first indication information is used to indicate whether the SPS configuration is used to transmit MBS services and / or MBS identification information associated with the SPS configuration.

[0085] Further, optionally, each of the N SPS configurations includes second indication information, where the second indication information is used to indicate MBS identification information associated with the SPS configuration.

[0086] In an example, the network device configures SPS configuration information (ie, the first configuration information) for transmitting MBS services through RRC signaling, wherein the SPS configuration information can be implemented through the above-mentioned method 1 or method 2.

[0087] In one example, corresponding to the above-mentioned method 1, the network device can configure a dedicated SPS configuration list for transmitting MBS services (i.e., the first SPS configuration list) in the BWP-DownlinkDedicated configuration or the ServingCellConfig configuration, and the dedicated SPS configuration list contains N SPS configurations, where N is a positive integer. Optionally, the N SPS configurations are associated with one MBS identification information, or each SPS configuration in the N SPS configurations is associated with one MBS identification information (which can be achieved by adding a second indication information in the SPS configuration). The MBS identification information can identify the MBS service that needs to be received, and the MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0088] In one example, corresponding to the above-mentioned method 2, an SPS configuration list (i.e., the first SPS configuration list) is configured in the BWP-DownlinkDedicated configuration, and the SPS configuration list contains N SPS configurations, where N is a positive integer. Optionally, each SPS configuration in the SPS configuration list contains an indication information (i.e., the first indication information), which is used to indicate whether the SPS configuration is used to transmit MBS services (in other words, the indication information is used to indicate whether the SPS configuration is used for MBS reception purposes). Optionally, each of the N SPS configurations is associated with an MBS identification information (which can be achieved by adding a second indication information to the SPS configuration). The MBS identification information can identify the MBS service that needs to be received, and the MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0089] It should be noted that, since the SPS configuration is used for MBS service transmission, the SPS configuration may be referred to as "MBS SPS configuration".

[0090] (2) Activate and deactivate SPS configuration

[0091] In the embodiment of the present application, the SPS configuration for transmitting the MBS service is activated or deactivated through DCI, and the DCI is referred to as the first DCI below. The embodiment of the present application does not limit the name of the DCI.

[0092] In an embodiment of the present application, the network device sends a first DCI to the terminal device, and the terminal device receives the first DCI sent by the network device, where the first DCI is used to activate at least one SPS configuration among the N SPS configurations. Here, in the scenario of MBS service transmission, the activated SPS configuration is used for MBS service transmission.

[0093] It should be noted that the first DCI may also be used to deactivate at least one SPS configuration among the N SPS configurations. In the scenario of MBS service transmission, the deactivated SPS configuration can no longer be used for MBS service transmission.

[0094] In an embodiment of the present application, the first DCI is used to activate at least one SPS configuration. To this end, the first DCI, or the MAC CE, or the RRC signaling needs to carry some information to indicate the at least one SPS configuration. In an optional manner, the first DCI or the MAC CE or the RRC signaling carries a first SPS identifier list, and the first SPS identifier list is used to determine at least one SPS configuration that needs to be activated. In another optional manner, the first DCI or the MAC CE or the RRC signaling carries a first MBS identifier, and the first MBS identifier is used to determine at least one SPS configuration that needs to be activated.

[0095] In this embodiment of the present application, there are two scrambling methods for the first DCI:

[0096] First scrambling method: The first DCI is scrambled by a first configured scheduling radio network temporary identifier (CS-RNTI) configured by RRC signaling. Here, the first CS-RNTI can be understood as an existing CS-RNTI.

[0097] Optionally, the first DCI carries third indication information, where the third indication information is used to indicate at least one of the following:

[0098] Whether the activated SPS configuration is used to transmit MBS services;

[0099] MBS identification information associated with the activated SPS configuration.

[0100] Second scrambling mode: The first DCI is scrambled by a second CS-RNTI configured by RRC signaling, where the second CS-RNTI is the CS-RNTI used by the MBS SPS. Here, the second CS-RNTI can be understood as a CS-RNTI dedicated to the MBS SPS.

[0101] Optionally, since the second CS-RNTI is a CS-RNTI used by MBS SPS, the second CS-RNTI is used to indicate that the activated SPS configuration is used to transmit MBS services, and the second CS-RNTI is associated with MBS identification information.

[0102] Optionally, the first DCI carries fourth indication information, where the fourth indication information is used to indicate MBS identification information associated with the activated SPS configuration.

[0103] In one example, the CS-RNTI (i.e., the first CS-RNTI) configured by RRC signaling is used to scramble DCI (i.e., the first DCI), and at least one SPS configuration is activated or deactivated through the DCI. Here, the CS-RNTI can be configured per cellgroup or per UE. The DCI carries an SPS identifier list (i.e., the first SPS identifier list) or an MBS identifier (i.e., the first MBS identifier), and indicates the target SPS configuration that needs to be activated through the SPS identifier list or the MBS identifier. Optionally, the DCI carries indication information (i.e., the third indication information), which is used to indicate whether the activated SPS configuration is used to transmit MBS services (in other words, the indication information is used to indicate whether the activated SPS configuration is used for MBS reception purposes). Optionally, the indication information is also used to indicate the MBS identification information associated with the activated SPS configuration. The MBS identification information can identify the MBS service that needs to be received, and the MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0104] In one example, the dedicated SPS configuration list configured in the BWP-DownlinkDedicated configuration (i.e., the first SPS configuration list) is used to transmit MBS services, and the dedicated CS-RNTI (i.e., the second CS-RNTI) configured through RRC signaling is used to scramble DCI (i.e., the first DCI), and at least one SPS configuration in the dedicated SPS configuration list is activated or deactivated through the DCI. Here, the dedicated CS-RNTI refers to the CS-RNTI used by MBS SPS, which can be called MBS CS-RNTI. MBSCS-RNTI is associated with an MBS identification information, such as TMGI, G-RNTI. DCI carries an SPS identification list (i.e., the first SPS identification list) or an MBS identification (i.e., the first MBS identification), and indicates the target SPS configuration that needs to be activated through the SPS identification list or the MBS identification. Optionally, the DCI carries indication information (i.e., the fourth indication information), which is used to indicate the MBS identification information associated with the activated SPS configuration. The MBS identification information can identify the MBS service that needs to be received. The MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0105] (3) PUCCH feedback resource configuration for MBS services

[0106] In an embodiment of the present application, the network device sends second configuration information to the terminal device, and the terminal device receives the second configuration information sent by the network device, the second configuration information is used to determine the configuration of the first PUCCH resource pool, and the PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; and / or, the network device sends third configuration information to the terminal device, and the terminal device receives the third configuration information sent by the network device, the third configuration information is used to determine the PUCCH resources of the terminal device, and the PUCCH resources are used for feedback information of the MBS service transmitted by the terminal device.

[0107] In an optional manner, the PUCCH resource is associated with one or more SPS configurations.

[0108] In an optional manner, the PUCCH resource is associated with MBS identification information.

[0109] In the above solution, optionally, the second configuration information and the third configuration information can be configured through RRC signaling.

[0110] In one example, the network device configures a PUCCH resource pool for MBS service feedback through RRC signaling, and / or configures PUCCH resources for MBS service feedback of each terminal device through RRC dedicated signaling. Here, the PUCCH resources are associated with one or more SPS configurations, or the PUCCH resources are associated with an MBS identification information, such as TMGI, G-RNTI.

[0111] (4) Frequency Hopping and / or Repeated Transmission of MBS Services

[0112] The first DCI may activate one SPS configuration or multiple SPS configurations. The following describes the case of activating one SPS configuration and the case of activating multiple SPS configurations respectively.

[0113] A) The first DCI is used to activate an SPS configuration, and the SPS configuration is used to transmit a first MBS service. Here, the first MBS service may also be referred to as an SPS MBS service, that is, the first MBS service is an MBS service transmitted in a semi-persistent scheduling manner.

[0114] In an optional manner, the one SPS configuration is associated with MBS identification information of the first MBS service.

[0115] In an optional manner, the first DCI includes first resource allocation information, and the first resource allocation information is used to determine one or more PDSCH resource allocations corresponding to an SPS configuration.

[0116] In an optional manner, the one SPS configuration is associated with fifth indication information, where the fifth indication information is used to indicate at least one of the following:

[0117] a frequency hopping mode adopted by the first MBS service;

[0118] a frequency hopping pattern used by the first MBS service;

[0119] a repeated transmission mode adopted by the first MBS service;

[0120] a transmission frequency of one service data item of the first MBS service;

[0121] The number of PDSCH resource allocations associated with one SPS configuration;

[0122] The number of repeated transmissions associated with the one SPS configuration.

[0123] In the above solution, the number of transmissions of a service data in the first MBS service can be determined by the PDSCH aggregation factor, i.e., the pdsch-AggregationFactor in Table 1. The PDSCH aggregation factor can also be called the repetition factor of a service data, which can be used to determine the number of transmissions of a service data.

[0124] In one example, for an SPS MBS service with frequency hopping transmission and no repeated transmission, the fifth indication information is used to indicate at least one of the following: the frequency hopping mode used by the first MBS service, the frequency hopping pattern used by the first MBS service, and the number of PDSCH resource allocations associated with an SPS configuration.

[0125] In one example, for an SPS MBS service with frequency hopping repeated transmission, the fifth indication information is used to indicate at least one of the following: the frequency hopping method adopted by the first MBS service, the frequency hopping pattern adopted by the first MBS service, the repeated transmission method adopted by the first MBS service, the number of PDSCH resource allocations associated with an SPS configuration, the number of repeated transmissions associated with an SPS configuration, and the number of transmissions of a service data in the first MBS service.

[0126] In one example, for an SPS MBS service that does not have frequency hopping repeated transmission but frequency hopping transmission of different service data, the fifth indication information is used to indicate at least one of the following: the frequency hopping method adopted by the first MBS service, the frequency hopping pattern adopted by the first MBS service, the number of PDSCH resource allocations associated with an SPS configuration, and the number of transmission times of a service data in the first MBS service.

[0127] B) The first DCI is used to activate multiple SPS configurations, which are used to transmit a first MBS service. Here, the first MBS service may also be referred to as an SPS MBS service, that is, the first MBS service is an MBS service transmitted in a semi-persistent scheduling manner.

[0128] In an optional manner, the multiple SPS configurations are associated with MBS identification information of the first MBS service.

[0129] In an optional manner, the multiple SPS configurations are associated with the same HARQ feedback codebook.

[0130] In an optional manner, the association relationship between the multiple SPS configurations and the HARQ feedback codebook is configured through RRC signaling, and the RRC signaling further configures the PUCCH resources corresponding to the HARQ feedback codebook.

[0131] In an optional manner, the first DCI includes second resource allocation information, and the second resource allocation information is used to determine one or more PDSCH resource allocations corresponding to each SPS configuration in multiple SPS configurations.

[0132] In an optional manner, the multiple SPS configurations or each SPS configuration in the multiple SPS configurations is associated with sixth indication information, where the sixth indication information is used to indicate at least one of the following:

[0133] a frequency hopping mode adopted by the first MBS service;

[0134] a frequency hopping pattern used by the first MBS service;

[0135] The number of PDSCH resource allocations associated with the SPS configuration;

[0136] The number of repeated transmissions associated with the SPS configuration;

[0137] The transmission associated with the SPS configuration is for the initial transmission or the Mth retransmission of a service data, where M is a positive integer.

[0138] In an embodiment of the present application, the first DCI includes a frequency hopping mode and / or a frequency hopping pattern for MBS transmission; wherein the frequency hopping mode for MBS transmission includes a frequency hopping transmission mode for retransmission of the same service data and a frequency hopping transmission mode for different service data; the frequency hopping pattern for MBS transmission is a frequency hopping pattern represented by an SPS configuration index list, or the index associated with each radio resource allocation in the first DCI is frequency-hopped in ascending or descending order. It should be noted that the frequency hopping mode and frequency hopping pattern described in the above scheme of the embodiment of the present application can be understood with reference to the description here.

[0139] In an example, for an SPS MBS service with frequency hopping transmission and no repeated transmission, the sixth indication information is used to indicate at least one of the following: a frequency hopping mode used by the first MBS service, and a frequency hopping pattern used by the first MBS service.

[0140] In one example, for an SPS MBS service with frequency hopping repeated transmission, the sixth indication information is used to indicate at least one of the following: the frequency hopping method adopted by the first MBS service, the frequency hopping pattern adopted by the first MBS service, and whether the transmission associated with the SPS configuration is the initial transmission or the Mth retransmission of a service data, where M is a positive integer.

[0141] In one example, for an SPS MBS service that does not have frequency hopping repeated transmission but frequency hopping transmission of different service data, the sixth indication information is used to indicate at least one of the following: the frequency hopping method adopted by the first MBS service, the frequency hopping pattern adopted by the first MBS service, the number of PDSCH resource allocations associated with an SPS configuration, and the number of transmission times of a service data in the first MBS service.

[0142] The above technical solution is illustrated below with reference to specific application examples.

[0143] Example 1

[0144] The network device configures the SPS configuration for MBS service transmission through RRC signaling.

[0145] 1) The network device configures an SPS configuration for transmitting an MBS service. The SPS configuration is associated with MBS identification information for the MBS service, such as a TMGI or G-RNTI. In addition to the information listed in Table 1 above, the SPS configuration may also include fifth indication information. Optionally, the fifth indication information is used to indicate at least one of the following: a frequency hopping method used by the MBS service, a frequency hopping pattern used by the MBS service, and the number of PDSCH resource allocations associated with the SPS configuration.

[0146] 2) The network device configures multiple SPS configurations (hereinafter referred to as a group of SPS configurations) for transmitting an MBS service. The group of SPS configurations is associated with the MBS identification information of an MBS service, such as a TMGI or a G-RNTI. A group of SPS configurations is associated with the sixth indication information, or each SPS configuration in a group of SPS configurations is associated with the sixth indication information. Optionally, in addition to the information given in Table 1 above, the information of each SPS configuration in a group of SPS configurations may further include the sixth indication information. Optionally, the sixth indication information is used to indicate at least one of the following: the frequency hopping method used by the MBS service, and the frequency hopping pattern used by the MBS service.

[0147] Here, all SPS configurations corresponding to an MBS service correspond to a HARQ feedback codebook ID or a HARQ feedback codebook, that is, this group of SPS configurations corresponds to a HARQ feedback codebook, and the network device can configure the association relationship between this group of SPS configurations and the HARQ feedback codebook (or HARQ feedback codebook ID) through RRC signaling. At the same time, the RRC signaling can also configure the feedback of the PHCCH resources corresponding to the HARQ feedback codebook.

[0148] In an embodiment of the present application, a terminal device receives a DCI for activating an SPS configuration. In an optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to one SPS. In another optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to SPS configurations. Optionally, the DCI also includes a frequency hopping method and / or a frequency hopping pattern adopted by the MBS service (i.e., a frequency hopping method for MBS transmission and / or a frequency hopping pattern for MBS transmission). Here, the description of the frequency hopping method and the frequency hopping pattern can be understood with reference to the above-mentioned relevant description. The terminal device receives the MBS service according to the SPS configuration corresponding to the MBS service configured in the RRC signaling and the time-frequency resource allocation corresponding to the activation of the SPS configuration. Here, the time-frequency resource allocation is also the PDSCH resource allocation, i.e., the time-frequency resource allocation of PDSCH.

[0149] Reference Figure 3 The SPS configurations used to transmit MBS services include SPS configuration 1 and SPS configuration 2, and these two SPS configurations are activated by DCI. For MBS services with frequency hopping transmission and no repeated transmission, the service data of the MBS service is not repeated within the frequency and between frequencies, but the service data of the MBS service is frequency hopping between frequencies. For example, the service data of the MBS service is transmitted in the following order: Figure 3 As shown: TB1, TB2, TB3, TB4, ..., wherein TB1 is transmitted on the PDSCH resources associated with SPS configuration 1, and TB2 is transmitted on the PDSCH resources associated with SPS configuration 2, and frequency hopping transmission is performed in this manner.

[0150] It should be noted that a TB refers to a piece of service data of an MBS service, which may also be referred to as MBS service data.

[0151] Example 2

[0152] The network device configures the SPS configuration for MBS transmission through RRC signaling.

[0153] 1) The network device configures an SPS configuration for transmitting an MBS service. The SPS configuration is associated with MBS identification information of the MBS service, such as TMGI or G-RNTI. In addition to the information provided in Table 1 above, the SPS configuration information may also include fifth indication information. Optionally, the fifth indication information is used to indicate at least one of the following: the repetitive transmission mode used by the MBS service, the number of PDSCH resource allocations associated with the SPS configuration, the number of repetitive transmissions associated with the SPS configuration, or the number of transmissions of service data.

[0154] 2) The network device configures multiple SPS configurations (hereinafter referred to as a group of SPS configurations) for transmitting an MBS service. The group of SPS configurations is associated with the MBS identification information of an MBS service, such as TMGI or G-RNTI. Among them, a group of SPS configurations is associated with the sixth indication information, or each SPS configuration in a group of SPS configurations is associated with the sixth indication information. Optionally, the network device configures each SPS configuration in the group of SPS configurations to be associated with a transmission indication information (i.e., the sixth indication information) through RRC signaling. The transmission indication information is used to indicate whether the transmission associated with the SPS configuration is for the initial transmission of a service data or the Mth retransmission (or the Tth transmission of a service data).

[0155] Here, all SPS configurations corresponding to an MBS service correspond to a HARQ feedback codebook ID or a HARQ feedback codebook, that is, this group of SPS configurations corresponds to a HARQ feedback codebook, and the network device can configure the association relationship between this group of SPS configurations and the HARQ feedback codebook (or HARQ feedback codebook ID) through RRC signaling. At the same time, the RRC signaling can also configure the feedback of the PHCCH resources corresponding to the HARQ feedback codebook.

[0156] A PUCCH resource configuration for feeding back one HARQ-ACK / NACK for multiple SPSs.

[0157] In an embodiment of the present application, a terminal device receives a DCI for activating an SPS configuration, and in an optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to one SPS. In another optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to SPS configurations. Optionally, the DCI further includes a transmission indication information (i.e., the sixth indication information), and the transmission indication information is used to indicate whether the transmission associated with the SPS configuration is for the initial transmission or the Mth retransmission of a service data (or the Tth transmission of a service data). Optionally, the DCI further includes a feedback indication information, and the feedback indication information is used to indicate whether HARQ feedback is required for the MBS service. The terminal device receives the MBS service according to the SPS configuration corresponding to the MBS service configured in the RRC signaling and the time-frequency resource allocation corresponding to the activation of the SPS configuration. Here, the time-frequency resource allocation is also the PDSCH resource allocation, that is, the time-frequency resource allocation of the PDSCH.

[0158] Reference Figure 4 The SPS configurations used to transmit MBS services include SPS configuration 1 and SPS configuration 2, and these two SPS configurations are activated by DCI. For SPS MBS services with frequency hopping repeated transmission, the service data of the MBS service is not repeatedly transmitted within the frequency, but is repeatedly transmitted between frequencies. For example, the service data of the MBS service is transmitted in the following order: Figure 4 As shown: TB1, TB1', TB2, TB2', ..., wherein TB1 is transmitted on the PDSCH resources associated with SPS configuration 1, TB1' is transmitted on the PDSCH resources associated with SPS configuration 2, TB1' is the first retransmission of TB1, and the frequency hopping is repeated in this way.

[0159] It should be noted that a TB refers to a piece of service data of an MBS service, which may also be referred to as MBS service data.

[0160] Example 3

[0161] The network device configures the SPS configuration for MBS service transmission through RRC signaling.

[0162] 1) The network device configures an SPS configuration for transmitting an MBS service. The SPS configuration is associated with MBS identification information for the MBS service, such as a TMGI or G-RNTI. In addition to the information listed in Table 1 above, the SPS configuration information may also include fifth indication information. Optionally, the fifth indication information is used to indicate at least one of the following: a frequency hopping method used by the MBS service, a frequency hopping pattern used by the MBS service, the number of PDSCH resource allocations associated with the SPS configuration, and the number of repeated transmissions associated with the SPS configuration.

[0163] 2) The network device configures multiple SPS configurations (hereinafter referred to as a group of SPS configurations) for transmitting an MBS service. The group of SPS configurations is associated with the MBS identification information of an MBS service, such as TMGI or G-RNTI. Among them, a group of SPS configurations is associated with the sixth indication information, or each SPS configuration in a group of SPS configurations is associated with the sixth indication information. Optionally, in addition to the information given in Table 1 above, the information of each SPS configuration in a group of SPS configurations may also additionally include the sixth indication information. Optionally, the sixth indication information is used to indicate at least one of the following: the frequency hopping method adopted by the MBS service, the frequency hopping pattern adopted by the MBS service, and the number of repeated transmissions associated with the SPS configuration.

[0164] Here, all SPS configurations corresponding to an MBS service correspond to a HARQ feedback codebook ID or a HARQ feedback codebook, that is, this group of SPS configurations corresponds to a HARQ feedback codebook, and the network device can configure the association relationship between this group of SPS configurations and the HARQ feedback codebook (or HARQ feedback codebook ID) through RRC signaling. At the same time, the RRC signaling can also configure the feedback of the PHCCH resources corresponding to the HARQ feedback codebook.

[0165] In an embodiment of the present application, a terminal device receives a DCI for activating an SPS configuration. In an optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to one SPS. In another optional manner, the DCI includes at least a plurality of time-frequency resource allocations corresponding to SPS configurations. Optionally, the DCI also includes a frequency hopping method and / or a frequency hopping pattern adopted by the MBS service (i.e., a frequency hopping method for MBS transmission and / or a frequency hopping pattern for MBS transmission). Here, the description of the frequency hopping method and the frequency hopping pattern can be understood with reference to the above-mentioned relevant description. The terminal device receives the MBS service according to the SPS configuration corresponding to the MBS service configured in the RRC signaling and the time-frequency resource allocation corresponding to the activation of the SPS configuration. Here, the time-frequency resource allocation is also the PDSCH resource allocation, i.e., the time-frequency resource allocation of PDSCH.

[0166] Reference Figure 5 The SPS configurations used to transmit MBS services include SPS configuration 1 and SPS configuration 2, and these two SPS configurations are activated by DCI. For SPS MBS services that do not have frequency hopping repeated transmission but frequency hopping transmission of different service data, the service data of the MBS service is repeatedly transmitted within the frequency, but not repeatedly transmitted between frequencies. For example, the service data of the MBS service is transmitted in the following order: Figure 5As shown: TB1, TB1', TB2, TB2', ..., where the number of repeated transmissions associated with SPS configuration 1 is 2, TB1 and TB1' are transmitted on the PDSCH resources associated with SPS configuration 1, the number of repeated transmissions associated with SPS configuration 2 is 2, TB2 and TB2' are transmitted on the PDSCH resources associated with SPS configuration 2, and frequency hopping repeated transmission is performed in this way.

[0167] It should be noted that a TB refers to a piece of service data of an MBS service, which may also be referred to as MBS service data.

[0168] (5) PDSCH scrambling method for MBS services

[0169] In the embodiment of the present application, the scrambling method of the PDSCH scheduled by the first DCI is configured through RRC signaling or indicated by the first DCI.

[0170] In an optional manner, the PDSCH scheduled by the first DCI is scrambled using a CS-RNTI. In another optional manner, the PDSCH scheduled by the first DCI is scrambled using a G-RNTI.

[0171] In one example, a CS-RNTI is used to scramble a PDSCH, where the PDSCH is used to transmit an SPS MBS service, which is an MBS service transmitted using semi-persistent scheduling (i.e., an MBS service transmitted based on an SPS configuration). The CS-RNTI associated with the SPS MBS service can be configured through RRC signaling.

[0172] In one example, the G-RNTI is used to scramble the PDSCH. Here, the PDSCH refers to the PDSCH used to transmit the SPS MBS service, and the SPS MBS service refers to the MBS service transmitted using semi-persistent scheduling (i.e., the MBS service transmitted based on the SPS configuration). The G-RNTI associated with the SPS MBS service or the CS-RNTI can be configured through RRC signaling.

[0173] In one example, the DCI used to activate the SPS configuration (i.e., the first DCI) or RRC signaling indicates whether to use CS-RNTI or G-RNTI to scramble the PDSCH. Here, PDSCH refers to the PDSCH used to transmit the SPS MBS service, and the SPS MBS service refers to the MBS service transmitted using a semi-static scheduling method (i.e., the MBS service transmitted based on the SPS configuration).

[0174] Figure 6This is a schematic diagram of the structure of the semi-static scheduling device for MBS services provided in the embodiment of the present application. Figure 1 , applied to terminal equipment, such as Figure 6 As shown, the semi-static scheduling device for the MBS service includes:

[0175] The receiving unit 601 is configured to receive first configuration information sent by a network device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0176] In an optional manner, the first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services.

[0177] In an optional manner, the first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, each of the N SPS configurations contains first indication information, and the first indication information is used to indicate whether the SPS configuration is used to transmit MBS services and / or MBS identification information associated with the SPS configuration.

[0178] In an optional manner, each of the N SPS configurations includes second indication information, where the second indication information is used to indicate MBS identification information associated with the SPS configuration.

[0179] In an optional manner, the first configuration information is carried in the BWP configuration or the serving cell configuration.

[0180] In an optional manner, the first configuration information is carried in RRC signaling.

[0181] In an optional manner, the receiving unit 601 is further used to receive a first DCI sent by the network device, where the first DCI is used to activate at least one SPS configuration among the N SPS configurations.

[0182] In an optional manner, the at least one SPS configuration that needs to be activated is determined based on the first SPS identifier list or based on at least the first MBS identifier;

[0183] The first SPS identifier list or the at least first MBS identifier is carried in the first DCI, or in a MAC CE, or in an RRC signaling.

[0184] In an optional manner, the first DCI is scrambled by a first CS-RNTI configured through RRC signaling.

[0185] In an optional manner, the first DCI carries third indication information, where the third indication information is used to indicate at least one of the following:

[0186] Whether the activated SPS configuration is used to transmit MBS services;

[0187] MBS identification information associated with the activated SPS configuration.

[0188] In an optional manner, the first DCI is scrambled by a second CS-RNTI configured through RRC signaling, where the second CS-RNTI is the CS-RNTI used by MBS SPS.

[0189] In an optional manner, the second CS-RNTI is used to indicate that the activated SPS configuration is used to transmit the MBS service, and the second CS-RNTI is associated with MBS identification information.

[0190] In an optional manner, the first DCI carries fourth indication information, where the fourth indication information is used to indicate MBS identification information associated with the activated SPS configuration.

[0191] In an optional manner, the receiving unit 601 is further used to receive second configuration information sent by the network device, the second configuration information is used to determine the configuration of the first PUCCH resource pool, and the PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; and / or, receive third configuration information sent by the network device, the third configuration information is used to determine the PUCCH resources of the terminal device, and the PUCCH resources are used for feedback information of the MBS service transmitted by the terminal device.

[0192] In an optional manner, the PUCCH resource is associated with one or more SPS configurations.

[0193] In an optional manner, the PUCCH resource is associated with MBS identification information.

[0194] In an optional manner, the first DCI is used to activate an SPS configuration, and the SPS configuration is used to transmit a first MBS service.

[0195] In an optional manner, the one SPS configuration is associated with MBS identification information of the first MBS service.

[0196] In an optional manner, the one SPS configuration is associated with fifth indication information, where the fifth indication information is used to indicate at least one of the following:

[0197] a frequency hopping mode adopted by the first MBS service;

[0198] a frequency hopping pattern used by the first MBS service;

[0199] a repeated transmission mode adopted by the first MBS service;

[0200] a transmission frequency of one service data item of the first MBS service;

[0201] The number of PDSCH resource allocations associated with one SPS configuration;

[0202] The number of repeated transmissions associated with the one SPS configuration.

[0203] In an optional manner, the first DCI is used to activate multiple SPS configurations, and the multiple SPS configurations are used to transmit the first MBS service.

[0204] In an optional manner, the multiple SPS configurations are associated with MBS identification information of the first MBS service.

[0205] In an optional manner, the multiple SPS configurations are associated with the same HARQ feedback codebook.

[0206] In an optional manner, the association relationship between the multiple SPS configurations and the HARQ feedback codebook is configured through RRC signaling, and the RRC signaling further configures the PUCCH resources corresponding to the HARQ feedback codebook.

[0207] In an optional manner, the multiple SPS configurations or each SPS configuration in the multiple SPS configurations is associated with sixth indication information, where the sixth indication information is used to indicate at least one of the following:

[0208] a frequency hopping mode adopted by the first MBS service;

[0209] a frequency hopping pattern used by the first MBS service;

[0210] The number of PDSCH resource allocations associated with the SPS configuration;

[0211] The number of repeated transmissions associated with the SPS configuration;

[0212] The transmission associated with the SPS configuration is for the initial transmission or the Mth retransmission of a service data, where M is a positive integer.

[0213] In an optional manner, the first DCI includes first resource allocation information, and the first resource allocation information is used to determine one or more PDSCH resource allocations corresponding to an SPS configuration.

[0214] In an optional manner, the first DCI includes second resource allocation information, and the second resource allocation information is used to determine one or more PDSCH resource allocations corresponding to each SPS configuration in multiple SPS configurations.

[0215] In an optional manner, the first DCI includes a frequency hopping mode and / or a frequency hopping pattern of MBS transmission;

[0216] The frequency hopping mode of MBS transmission includes a frequency hopping transmission mode of retransmitting the same service data and a frequency hopping transmission mode of different service data;

[0217] The frequency hopping pattern of the MBS transmission is a frequency hopping pattern represented by an SPS configuration index list, or the index associated with each radio resource allocation in the first DCI is frequency-hopped in an ascending order or a descending order.

[0218] In an optional manner, the scrambling method of the PDSCH scheduled by the first DCI is configured through RRC signaling or indicated by the first DCI.

[0219] In an optional manner, the PDSCH scheduled by the first DCI is scrambled using the CS-RNTI; or,

[0220] The PDSCH scheduled by the first DCI is scrambled using the G-RNTI.

[0221] In an optional manner, the MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0222] Those skilled in the art should understand that the description related to the semi-persistent scheduling apparatus for MBS services in the embodiments of the present application can be understood with reference to the description related to the semi-persistent scheduling method for MBS services in the embodiments of the present application.

[0223] Figure 7 This is a schematic diagram of the structure of the semi-static scheduling device for MBS services provided in the embodiment of the present application. Figure 2 , used in network equipment, such as Figure 7 As shown, the semi-static scheduling device for the MBS service includes:

[0224] The sending unit 701 is used to send first configuration information to the terminal device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and all or part of the N SPS configurations are used to transmit MBS services.

[0225] In an optional manner, the first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services.

[0226] In an optional manner, the first configuration information includes a first SPS configuration list, the first SPS configuration list includes N SPS configurations, each of the N SPS configurations contains first indication information, and the first indication information is used to indicate whether the SPS configuration is used to transmit MBS services and / or MBS identification information associated with the SPS configuration.

[0227] In an optional manner, each of the N SPS configurations includes second indication information, where the second indication information is used to indicate MBS identification information associated with the SPS configuration.

[0228] In an optional manner, the first configuration information is carried in the BWP configuration or the serving cell configuration.

[0229] In an optional manner, the first configuration information is carried in RRC signaling.

[0230] In an optional manner, the sending unit is further used to send a first DCI to the terminal device, where the first DCI is used to activate at least one SPS configuration among the N SPS configurations.

[0231] In an optional manner, the at least one SPS configuration that needs to be activated is determined based on the first SPS identifier list or based on at least the first MBS identifier;

[0232] The first SPS identifier list or the at least first MBS identifier is carried in the first DCI, or in a MAC CE, or in an RRC signaling.

[0233] In an optional manner, the first DCI is scrambled by a first CS-RNTI configured through RRC signaling.

[0234] In an optional manner, the first DCI carries third indication information, where the third indication information is used to indicate at least one of the following:

[0235] Whether the activated SPS configuration is used to transmit MBS services;

[0236] MBS identification information associated with the activated SPS configuration.

[0237] In an optional manner, the first DCI is scrambled by a second CS-RNTI configured through RRC signaling, where the second CS-RNTI is the CS-RNTI used by MBS SPS.

[0238] In an optional manner, the second CS-RNTI is used to indicate that the activated SPS configuration is used to transmit the MBS service, and the second CS-RNTI is associated with MBS identification information.

[0239] In an optional manner, the first DCI carries fourth indication information, where the fourth indication information is used to indicate MBS identification information associated with the activated SPS configuration.

[0240] In an optional manner, the sending unit 701 is further used to send second configuration information to the terminal device, the second configuration information is used to determine the configuration of the first PUCCH resource pool, and the PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; and / or, send third configuration information to the terminal device, the third configuration information is used to determine the PUCCH resources of the terminal device, and the PUCCH resources are used for feedback information of the MBS service transmitted by the terminal device.

[0241] In an optional manner, the PUCCH resource is associated with one or more SPS configurations.

[0242] In an optional manner, the PUCCH resource is associated with MBS identification information.

[0243] In an optional manner, the first DCI is used to activate an SPS configuration, and the SPS configuration is used to transmit a first MBS service.

[0244] In an optional manner, the one SPS configuration is associated with MBS identification information of the first MBS service.

[0245] In an optional manner, the one SPS configuration is associated with fifth indication information, where the fifth indication information is used to indicate at least one of the following:

[0246] a frequency hopping mode adopted by the first MBS service;

[0247] a frequency hopping pattern used by the first MBS service;

[0248] a repeated transmission mode adopted by the first MBS service;

[0249] a transmission frequency of one service data item of the first MBS service;

[0250] The number of PDSCH resource allocations associated with one SPS configuration;

[0251] The number of repeated transmissions associated with the one SPS configuration.

[0252] In an optional manner, the first DCI is used to activate multiple SPS configurations, and the multiple SPS configurations are used to transmit the first MBS service.

[0253] In an optional manner, the multiple SPS configurations are associated with MBS identification information of the first MBS service.

[0254] In an optional manner, the multiple SPS configurations are associated with the same HARQ feedback codebook.

[0255] In an optional manner, the association relationship between the multiple SPS configurations and the HARQ feedback codebook is configured through RRC signaling, and the RRC signaling further configures the PUCCH resources corresponding to the HARQ feedback codebook.

[0256] In an optional manner, the multiple SPS configurations or each SPS configuration in the multiple SPS configurations is associated with sixth indication information, where the sixth indication information is used to indicate at least one of the following:

[0257] a frequency hopping mode adopted by the first MBS service;

[0258] a frequency hopping pattern used by the first MBS service;

[0259] The number of PDSCH resource allocations associated with the SPS configuration;

[0260] The number of repeated transmissions associated with the SPS configuration;

[0261] The transmission associated with the SPS configuration is for the initial transmission or the Mth retransmission of a service data, where M is a positive integer.

[0262] In an optional manner, the first DCI includes first resource allocation information, and the first resource allocation information is used to determine one or more PDSCH resource allocations corresponding to an SPS configuration.

[0263] In an optional manner, the first DCI includes second resource allocation information, and the second resource allocation information is used to determine one or more PDSCH resource allocations corresponding to each SPS configuration in multiple SPS configurations.

[0264] In an optional manner, the first DCI includes a frequency hopping mode and / or a frequency hopping pattern of MBS transmission;

[0265] The frequency hopping mode of MBS transmission includes a frequency hopping transmission mode of retransmitting the same service data and a frequency hopping transmission mode of different service data;

[0266] The frequency hopping pattern of the MBS transmission is a frequency hopping pattern represented by an SPS configuration index list, or the index associated with each radio resource allocation in the first DCI is frequency-hopped in an ascending order or a descending order.

[0267] In an optional manner, the scrambling method of the PDSCH scheduled by the first DCI is configured through RRC signaling or indicated by the first DCI.

[0268] In an optional manner, the PDSCH scheduled by the first DCI is scrambled using the CS-RNTI; or,

[0269] The PDSCH scheduled by the first DCI is scrambled using the G-RNTI.

[0270] In an optional manner, the MBS identification information includes at least one of the following: TMGI, G-RNTI, and SPS G-RNTI.

[0271] Those skilled in the art should understand that the description related to the semi-persistent scheduling apparatus for MBS services in the embodiments of the present application can be understood with reference to the description related to the semi-persistent scheduling method for MBS services in the embodiments of the present application.

[0272] Figure 8 800 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device can be a terminal device or a network device. Figure 8 The communication device 800 shown includes a processor 810, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0273] Alternatively, as Figure 8 As shown, the communication device 800 may further include a memory 820. The processor 810 may call and execute a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0274] The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

[0275] Alternatively, as Figure 8 As shown, the communication device 800 may further include a transceiver 830 , and the processor 810 may control the transceiver 830 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0276] The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of antennas may be one or more.

[0277] Optionally, the communication device 800 may specifically be a network device in an embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0278] Optionally, the communication device 800 may specifically be a mobile terminal / terminal device in an embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0279] Figure 9 It is a schematic structural diagram of the chip of an embodiment of the present application. Figure 9 The chip 900 shown includes a processor 910, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0280] Alternatively, as Figure 9 As shown, the chip 900 may further include a memory 920. The processor 910 may call and execute a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0281] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0282] Optionally, the chip 900 may further include an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0283] Optionally, the chip 900 may further include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0284] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0285] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0286] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0287] Figure 10 1 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. Figure 10 As shown, the communication system 1000 includes a terminal device 1010 and a network device 1020 .

[0288] Among them, the terminal device 1010 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1020 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0289] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0290] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0291] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0292] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0293] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0294] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0295] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0296] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0297] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0298] The embodiment of the present application also provides a computer program.

[0299] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0300] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0301] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0302] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0303] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0304] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0305] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0306] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0307] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A semi-persistent scheduling method for a multicast multicast service (MBS) service, the method comprising: The terminal device receives first configuration information sent by the network device, where the first configuration information is used to determine N semi-persistent scheduling SPS configurations, where N is a positive integer, and the N SPS configurations are all used to transmit MBS services. The first configuration information includes a first SPS configuration list, where the first SPS configuration list includes the N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services. The first configuration information is carried in a bandwidth part BWP configuration. The terminal device receives second configuration information sent by the network device, where the second configuration information is used to determine a configuration of a first physical uplink control channel (PUCCH) resource pool, where PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; or, The terminal device receives third configuration information sent by the network device, where the third configuration information is used to determine a PUCCH resource of the terminal device, and the PUCCH resource is used for feedback information of the MBS service transmitted by the terminal device.

2. The method according to claim 1, wherein The method further comprises: The terminal device receives first downlink control information DCI sent by the network device, where the first DCI is used to activate or deactivate at least one SPS configuration among the N SPS configurations.

3. The method according to claim 2, wherein: The first DCI is scrambled by a second configuration scheduling radio network temporary identifier CS-RNTI configured through radio resource control RRC signaling, and the second CS-RNTI is a CS-RNTI used by MBS SPS.

4. The method according to claim 2 or 3, wherein: The first DCI is used to activate an SPS configuration, the SPS configuration is used to transmit a first MBS service, the SPS configuration is associated with fifth indication information, and the fifth indication information is used to indicate at least one of the following: a frequency hopping mode adopted by the first MBS service; a frequency hopping pattern used by the first MBS service; a repeated transmission mode adopted by the first MBS service; a transmission frequency of one service data item of the first MBS service; The number of PDSCH resource allocations associated with one SPS configuration; The number of repeated transmissions associated with the one SPS configuration.

5. The method according to claim 2 or 3, wherein: The first DCI is used to activate multiple SPS configurations, where the multiple SPS configurations are used to transmit a first MBS service. The multiple SPS configurations or each of the multiple SPS configurations is associated with sixth indication information, where the sixth indication information is used to indicate at least one of the following: a frequency hopping mode adopted by the first MBS service; a frequency hopping pattern used by the first MBS service; The number of PDSCH resource allocations associated with the SPS configuration; The number of repeated transmissions associated with the SPS configuration; The transmission associated with the SPS configuration is for the initial transmission or the Mth retransmission of a service data, where M is a positive integer.

6. The method according to claim 2 or 3, wherein: The first DCI includes a frequency hopping mode and / or a frequency hopping pattern of MBS transmission; The frequency hopping mode of MBS transmission includes a frequency hopping transmission mode of retransmitting the same service data and a frequency hopping transmission mode of different service data; The frequency hopping pattern of the MBS transmission is a frequency hopping pattern represented by an SPS configuration index list, or the index associated with each radio resource allocation in the first DCI is frequency-hopped in an ascending order or a descending order.

7. A semi-persistent scheduling method for MBS services, the method comprising: The network device sends first configuration information to the terminal device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and the N SPS configurations are all used to transmit MBS services. The first configuration information includes a first SPS configuration list, where the first SPS configuration list includes the N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services. The first configuration information is carried in a bandwidth part BWP configuration. The network device sends second configuration information to the terminal device, where the second configuration information is used to determine the configuration of a first physical uplink control channel (PUCCH) resource pool, where PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; or, The network device sends third configuration information to the terminal device, where the third configuration information is used to determine a PUCCH resource of the terminal device, and the PUCCH resource is used for feedback information of the MBS service transmitted by the terminal device.

8. A semi-persistent scheduling device for MBS services, applied to a terminal device, comprising: a receiving unit, configured to receive first configuration information sent by a network device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and the N SPS configurations are all used to transmit MBS services, the first configuration information includes a first SPS configuration list, the first SPS configuration list includes the N SPS configurations, the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services, and the first configuration information is carried in a bandwidth part BWP configuration; The receiving unit is further configured to receive second configuration information sent by the network device, where the second configuration information is used to determine a configuration of a first physical uplink control channel (PUCCH) resource pool, where PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; or Receive third configuration information sent by the network device, where the third configuration information is used to determine a PUCCH resource of the terminal device, and the PUCCH resource is used for feedback information of the MBS service transmitted by the terminal device.

9. A semi-persistent scheduling device for MBS services, applied to a network device, comprising: a sending unit, configured to send first configuration information to a terminal device, where the first configuration information is used to determine N SPS configurations, where N is a positive integer, and the N SPS configurations are all used to transmit MBS services. The first configuration information includes a first SPS configuration list, where the first SPS configuration list includes the N SPS configurations, and the first SPS configuration list is a dedicated SPS configuration list for transmitting MBS services. The first configuration information is carried in a bandwidth part BWP configuration. The sending unit is further configured to send second configuration information to the terminal device, where the second configuration information is used to determine the configuration of a first physical uplink control channel (PUCCH) resource pool, where PUCCH resources in the first PUCCH resource pool are used to transmit feedback information of the MBS service; or Send third configuration information to the terminal device, where the third configuration information is used to determine the PUCCH resources of the terminal device, and the PUCCH resources are used for feedback information of the MBS service transmitted by the terminal device.

10. A terminal device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 6.

11. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to claim 7.

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