Broadcast service transmission method and apparatus, and terminal and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a broadcast service transmission method and apparatus, and a terminal and a network-side device. The broadcast service transmission method in the embodiments of the present application comprises: a terminal acquiring target configuration information, wherein the target configuration information comprises first configuration information for receiving a first broadcast service, and the first broadcast service is a service associated with a broadcast service serving area; the terminal acquiring a broadcast service serving area associated with the first broadcast service; and the terminal receiving the first broadcast service on the basis of the broadcast service serving area and the first configuration information.

Description

Broadcast service transmission method and apparatus, terminal and network-side device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202411094268.6, filed on August 9, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to a broadcast service transmission method, apparatus, terminal and network-side device. BACKGROUND

[0004] With the development of communication technology, in a non-terrestrial network (NTN) communication system, the broadcast service configured by the network-side device is usually configured for the NTN cell, that is, the terminal in the coverage range of the NTN cell can receive the broadcast service configured by the network-side device. Therefore, the prior art has the problem of poor flexibility of broadcast service transmission. SUMMARY

[0005] The embodiments of the present application provide a broadcast service transmission method, apparatus, terminal and network-side device, which can solve the problem of poor flexibility of broadcast service transmission.

[0006] In a first aspect, a broadcast service transmission method is provided, comprising:

[0007] A terminal acquires target configuration information, wherein the target configuration information comprises first configuration information for receiving a first broadcast service, and the first broadcast service is a service associated with a broadcast service service area.

[0008] The terminal acquires a broadcast service service area associated with the first broadcast service.

[0009] The terminal receives the first broadcast service based on the broadcast service service area and the first configuration information.

[0010] In a second aspect, a broadcast service transmission method is provided, comprising:

[0011] A network-side device sends target configuration information to a terminal, wherein the target configuration information comprises first configuration information for receiving a first broadcast service, and the first broadcast service is a service associated with a broadcast service service area.

[0012] In a third aspect, a broadcast service transmission apparatus is provided, comprising:

[0013] receiving a target configuration information, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area; obtaining a broadcast service service area associated with the first broadcast service; and receiving the first broadcast service based on the broadcast service service area and the first configuration information.

[0014] In a fourth aspect, a broadcast service transmission apparatus is provided, comprising:

[0015] receiving a target configuration information, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area; obtaining a broadcast service service area associated with the first broadcast service; and receiving the first broadcast service based on the broadcast service service area and the first configuration information.

[0016] In a fifth aspect, a broadcast service transmission apparatus is provided, the apparatus being configured to perform the steps of the method of the first aspect, or to implement the steps of the method of the second aspect.

[0017] In a sixth aspect, a terminal is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method of the first aspect.

[0018] In a seventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to receive a target configuration information, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area; obtain a broadcast service service area associated with the first broadcast service; and receive the first broadcast service based on the broadcast service service area and the first configuration information.

[0019] In an eighth aspect, a network side device is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method of the second aspect.

[0020] In a ninth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send a target configuration information to a terminal, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area.

[0021] In a tenth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions, when executed by a processor, implementing the steps of the method of the first aspect, or implementing the steps of the method of the second aspect.

[0022] In an eleventh aspect, a wireless communication system is provided, comprising: a terminal configured to perform the steps of the method according to the first aspect, and a network-side device configured to perform the steps of the method according to the second aspect.

[0023] In a twelfth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the method according to the first aspect or the method according to the second aspect.

[0024] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the method according to the first aspect or the method according to the second aspect.

[0025] In the embodiments of the present application, the terminal acquires target configuration information, the target configuration information includes first configuration information used for receiving a first broadcast service, and the first broadcast service is a service associated with a broadcast service service area; the terminal acquires a broadcast service service area associated with the first broadcast service; and the terminal receives the first broadcast service based on the broadcast service service area and the first configuration information. In this way, the broadcast service can be provided at a specific point, and the flexibility of broadcast service transmission is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0027] FIG. 2 is an example diagram of an NTN deployment scenario;

[0028] FIG. 3 is a flow diagram of a broadcast service transmission method according to an embodiment of the present application;

[0029] FIGS. 4 to 11 are example diagrams of signaling interaction processes of a broadcast service transmission method according to embodiments of the present application;

[0030] FIG. 12 is a flow diagram of another broadcast service transmission method according to an embodiment of the present application;

[0031] FIG. 13 is a structural diagram of a broadcast service transmission apparatus according to an embodiment of the present application;

[0032] FIG. 14 is a structural diagram of another broadcast service transmission apparatus according to an embodiment of the present application;

[0033] FIG. 15 is a structural diagram of a communication device according to an embodiment of the present application;

[0034] FIG. 16 is a structural schematic diagram of a terminal according to an embodiment of the present application;

[0035] FIG. 17 is a structural schematic diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0037] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of the specific information, the operation to be performed or the request result, etc. in the indication sent by the sender; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the request result, etc. according to the judgment result.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0039] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0040] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0041] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a dedicated hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0042] For the convenience of understanding, some contents related to the embodiments of the present application are described as follows:

[0043] I. Non-terrestrial networks (NTN).

[0044] The typical NTN deployment scenario is as follows. As shown in FIG. 2, the link between the terminal and the satellite is called the service link (i.e., service link), and the link between the satellite and the ground gateway is called the feeder link (i.e., feeder link). The coverage range of the NTN cell is relatively large, for example, the cell radius can reach hundreds of kilometers. In addition, the service cell of the LEO satellite can be further classified into an Earth fixed cell (EFC) and an earth moving cell (EMC). The EFC means that the service cell of the satellite is fixed on the ground within a period of time, which is usually achieved by rotating the satellite beam (the satellite moves on the orbit, and the satellite beam also dynamically scans, so as to finally realize that the geographical position of the satellite beam on the ground does not change). For the EMC, the service cell of the satellite is also moving on the ground with the movement of the satellite, and the UE can calculate the reference position of the service cell on the ground at a certain time based on the ephemeris information of the satellite.

[0045] II. Multicast and broadcast service (MBS) broadcast.

[0046] The MBS broadcast is a downlink-only MBS delivery method provided by the gNB for the terminal in all radio resource control (RRC) states, which is suitable for transmitting a broadcast service with low quality of service (QoS), and its main features are as follows:

[0047] Group Scheduling: For broadcast scheduling using common frequency resources (CFR) is defined as an "MBS frequency domain" with multiple contiguous physical resource blocks (PRBs), in which a group radio network temporary identifier (G-RNTI) can be used to schedule related MBS broadcast services, and a multicast broadcast service control channel RNTI (MCCH-RNTI) is used to schedule related MBS broadcast service configuration messages. The bandwidth of the CFR can be equal to or greater than the initial bandwidth part (BWP), which is indicated by the system information. MBS broadcast does not support hybrid automatic repeat request (HARQ) feedback and HARQ retransmission.

[0048] MBS broadcast Configuration: A terminal can receive MBS configuration of a broadcast service through the broadcast control channel MCCH, and a terminal in an RRC idle (RRC_IDLE), RRC inactive (RRC_INACTIVE), or RRC connected (RRC_CONNECTED) state can also receive MBS configuration of a broadcast service through the broadcast control channel MCCH.

[0049] Service Continuity: NR does not guarantee lossless mobility for MBS broadcast, but supports continuity of broadcast services through some mechanisms. NR MBS broadcast supports MBS frequency prioritization, enabling a UE in RRC_IDLE or RRC_INACTIVE to select a suitable frequency to receive a service of interest. To ensure MBS broadcast service continuity for a terminal in "RRC_CONNECTED", the terminal can send a so-called interest indication to the gNB, and then the gNB can configure the terminal to enable it to receive a service of interest using MBS broadcast.

[0050] Local MBS broadcast service: A service that is transmitted only on one MBS service area. In the existing NR system, the MBS service area represents one or more cells, or one or more tracking areas. The Network Exposure Function (NEF) or Multicast and Broadcast Service Function (MBSF) network function translates the geographic area information or civic address information into location information based on cell ID or tracking area ID, and sends the corresponding information to the gNB.

[0051] III. Location-based mobility management

[0052] There is a problem of Reference Signal Received Power (RSRP) not steeply decreasing at the edge of NTN cell, so the mobility management method based on signal quality strength in traditional TN cell cannot be adapted in NTN cell. Therefore, R17 / R18 NR introduces location-based neighbor RRM triggering mechanism, and location-based triggered measurement reporting and conditional handover. For example, for location-based neighbor RRM triggering mechanism, when the UE judges that the distance between its own location and the reference location of the serving cell is less than the threshold, the UE can not perform neighbor RRM measurement (intra-frequency measurement, NR inter-frequency measurement, inter-RAT frequency measurement). For another example, when the UE judges that the distance between its own location and the reference location of the serving cell is greater than the threshold, and the distance between its own location and the reference location of the target neighbor cell is less than the threshold, measurement reporting or conditional handover is performed. If the serving cell is EMC, the UE needs to calculate the reference location of the serving cell and the target neighbor cell based on the satellite ephemeris information when calculating the reference location of the serving cell and the target neighbor cell.

[0053] In the NR R19 NTN requirement, it is required that the base station indicates the geographical service area of a specific broadcast service through a system message, so that only the UEs in the area can receive the service. However, the current NR MBS system cannot indicate the geographical service area with an area smaller than the service cell, and lacks a mechanism to indicate the geographical service area of a specific broadcast service more accurately. Therefore, the broadcast service transmission method provided in the present application is proposed, so that the UE determines the geographical service area that allows the reception of a specific broadcast service, and receives the interested service when the UE is in the geographical service area corresponding to the interested service. Thus, in the scenario of large-area coverage of the NTN cell, the terminal can receive a specific broadcast service only in a small area within a specific range, and unnecessary reception of broadcast services after leaving the geographical service area is avoided.

[0054] The broadcast service transmission method provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings and some embodiments and application scenarios.

[0055] Referring to FIG. 3, the present application provides a broadcast service transmission method, as shown in FIG. 3, which comprises:

[0056] Step 301, the terminal acquires target configuration information, wherein the target configuration information comprises first configuration information for receiving a first broadcast service, and the first broadcast service is a service associated with a broadcast service area;

[0057] Step 302, the terminal acquires a broadcast service area associated with the first broadcast service;

[0058] Step 303, the terminal receives the first broadcast service based on the broadcast service area and the first configuration information.

[0059] In the embodiments of the present application, the above-mentioned broadcast service can be understood as a broadcast service or a broadcast session, and the above-mentioned broadcast service area can be understood or replaced as a broadcast session area.

[0060] Optionally, the above-mentioned first broadcast service can be understood as a broadcast service that can only be received in a part of the broadcast service area within the coverage range of the NTN cell. For example, the broadcast service area can be understood as a city or an administrative area of a city.

[0061] Optionally, in some embodiments, the terminal can receive a first broadcast service in which the terminal is interested and in which the location of the terminal is in a broadcast service service area associated with the first broadcast service. In this way, the terminal is configured to receive the first broadcast service in the designated broadcast service service area through the first configuration information, thereby achieving the NTN cell providing the broadcast service at a designated point and improving the flexibility of broadcast service transmission. Meanwhile, in the case where the terminal is not in the broadcast service service area, the first broadcast service can be stopped from being received and the corresponding first configuration information can be released.

[0062] Optionally, the target configuration information can be sent by a network side device of the NTN cell, that is, the terminal obtaining the target configuration information can be understood as the terminal receiving the target configuration information from the network side device of the NTN cell.

[0063] In the embodiments of the present application, the terminal obtains the target configuration information, the target configuration information includes first configuration information for receiving a first broadcast service, the first broadcast service is a service associated with a broadcast service service area; the terminal obtains a broadcast service service area associated with the first broadcast service; and the terminal receives the first broadcast service based on the broadcast service service area and the first configuration information. In this way, the broadcast service can be provided at a designated point, and the flexibility of broadcast service transmission is improved.

[0064] Optionally, in some embodiments, the first configuration information includes at least one of the following:

[0065] a first common frequency resource (CFR) configuration;

[0066] a first Multicast Broadcast Control Channel (MCCH) configuration;

[0067] a broadcast service configuration.

[0068] In the embodiments of the present application, a plurality of configurations in the first configuration information can be carried by one or more messages, for example, the first configuration information can be carried by a system message or an MCCH message, wherein the system message carries part of the first configuration information, and the MCCH message carries part of the first configuration information. Optionally, in some embodiments, at least one of the first CFR configuration and the MCCH configuration can be indicated by a system message; the broadcast service configuration can be indicated by an MCCH message. Of course, in some embodiments, all the first configuration information can be carried by a system message, that is, the first CFR configuration, the first MCCH configuration and the broadcast service configuration are carried by the system message.

[0069] Optionally, in some embodiments, the terminal obtaining the broadcast service area associated with the first broadcast service comprises:

[0070] The terminal obtains the MCCH message according to at least one of the first CFR configuration and the first MCCH configuration, wherein the terminal receives the first broadcast service or the terminal is interested in receiving the first broadcast service.

[0071] The terminal obtains the broadcast service area associated with the first broadcast service according to the MCCH message.

[0072] In the embodiments of the present application, the terminal interested in receiving the first broadcast service can be understood as the terminal interested in receiving the first broadcast service. Since the terminal is interested in receiving the first broadcast service, the terminal can obtain the broadcast service configuration of the service it is interested in from the MCCH message.

[0073] Optionally, in some embodiments, the terminal can obtain the MCCH message according to at least one of the first CFR configuration and the first MCCH configuration when the terminal is interested in receiving the first broadcast service or is receiving the first broadcast service.

[0074] Optionally, the broadcast service of interest includes but is not limited to the broadcast service expected to be received by the terminal. In an implementation, the broadcast service received by the terminal includes the broadcast service not sent by the network side device and the broadcast service already sent by the network side device but not received by the terminal.

[0075] Optionally, in some embodiments, the terminal receives the first broadcast service based on the broadcast service area and the first configuration information comprises:

[0076] When the terminal is in the broadcast service area associated with the first broadcast service, the terminal receives the first broadcast service according to at least one of the first CFR configuration and the broadcast service configuration.

[0077] It should be noted that in some embodiments, the target configuration information can also include second configuration information for receiving a second broadcast service, and the second broadcast service is a service not associated with a broadcast service area.

[0078] In the embodiments of the present application, the above-mentioned second broadcast service can be understood as a legacy broadcast service, and the terminal can receive the second broadcast service in any broadcast service area within the NTN cell coverage range.

[0079] Optionally, the above-mentioned second configuration information can include at least one of the following:

[0080] a second CFR configuration;

[0081] a second MCCH configuration;

[0082] a broadcast service configuration of the second broadcast service.

[0083] Optionally, in a case that the terminal is interested in receiving the second broadcast service or is receiving the second broadcast service, the terminal can acquire the MCCH message according to at least one of the second CFR configuration and the second MCCH configuration.

[0084] Optionally, in some embodiments, the terminal acquiring the MCCH message comprises:

[0085] the terminal acquiring the MCCH message based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID) and an MCCH message type indication.

[0086] wherein the first RNTI is used for scrambling the MCCH message corresponding to the first MCCH configuration, and the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration.

[0087] In embodiments of the present application, the MCCH messages corresponding to different MCCH configurations can be scrambled by different MCCH-RNTIs, which can include the first RNTI and a second RNTI, and the second RNTI is used for scrambling the MCCH message corresponding to the second MCCH configuration.

[0088] Optionally, the first RNTI is different from the second RNTI and different from a multicast MCCH-RNTI.

[0089] Optionally, the MCCH messages corresponding to different MCCH configurations can be identified by different LCIDs, so that the terminal can acquire the MCCH message corresponding to the first MCCH configuration based on a first LCID and acquire the MCCH message corresponding to the second MCCH configuration based on a second LCID.

[0090] Optionally, in some embodiments, the broadcast service configuration is carried by at least one of the following:

[0091] an MCCH message extension field;

[0092] an MCCH message scrambled by the first RNTI;

[0093] an MCCH message indexed by the first LCID;

[0094] the first message type indicates the MCCH message corresponding to the first MCCH configuration;

[0095] The first RNTI is used for scrambling the MCCH message corresponding to the first MCCH configuration; the first LCID is used for indicating the logical channel identifier of the MCCH message corresponding to the first MCCH configuration; and the first message type is used for indicating the radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration.

[0096] In the embodiments of the present application, different MCCH messages corresponding to different MCCH configurations can be indicated by different message types. For example, the message types include a first message type and a second message type, and the second message type is used for indicating the radio resource control (RRC) message type of the MCCH message corresponding to the second MCCH configuration.

[0097] It should be noted that in the embodiments of the present application, the MCCH message corresponding to the first MCCH configuration can be understood as a first MCCH message, and the MCCH message corresponding to the second MCCH configuration can be understood as a second MCCH message.

[0098] Optionally, in some embodiments, the target configuration information further includes geographic service area information, and the geographic service area information is used for indicating a broadcast service area associated with the first broadcast service.

[0099] Optionally, in some embodiments, the geographic service area information includes at least one of the following:

[0100] a broadcast service area list (session area List) including at least one of the following: area information of at least one broadcast service area, and an identifier corresponding to the area information of the broadcast service area;

[0101] a broadcast service area combination list including at least one of the following: area combination information of at least one broadcast service area combination, and an identifier corresponding to the area combination information of the broadcast service area combination;

[0102] a distance threshold value used for determining whether the terminal is in a broadcast service area or outside a broadcast service area.

[0103] In the embodiments of the present application, the above-mentioned geographic service area information can be carried by a system message (such as SIB20), or carried by an MCCH message, or carried by a new system message, which is not limited here.

[0104] Optionally, in some embodiments, if one element in the session area List is an empty element (the area information of a broadcast service area or the identifier corresponding to the area information of the broadcast service area), the terminal can assume that the corresponding broadcast service allows any broadcast service area within the current NTN cell coverage area to be received.

[0105] Optionally, the terminal can determine that the terminal is within a broadcast service area or outside a broadcast service area based on a distance threshold and reference location information. For example, if the distance between the location of the terminal and the reference location information is less than or equal to the distance threshold, it can be considered that the current terminal is within the broadcast service area; if the distance between the location of the terminal and the reference location information is greater than the distance threshold, it can be considered that the current terminal is outside the broadcast service area. The reference location information can be configured by a network side device or agreed by a protocol. The distance threshold can be configured per cell or per broadcast session. For example, the above-mentioned geographic service area information can include a distance threshold value corresponding to each broadcast service area. In this way, the accuracy of determining whether the terminal is within the broadcast service area is improved.

[0106] Optionally, in some embodiments, the above-mentioned target configuration information can further include indication information indicating that all broadcast services of the cell currently sending the target configuration information are associated with broadcast service areas.

[0107] Optionally, in some embodiments, if the target configuration information is carried by a system message and the first condition is met, the terminal does not acquire the MCCH message.

[0108] The first condition includes any of the following:

[0109] The system message indicates the first configuration information of the first target broadcast service, and the terminal location is not within the broadcast service area associated with any second target broadcast service in the first target broadcast service, the first target broadcast service including at least one first broadcast service;

[0110] The system message indicates that all broadcast services of the cell are the first broadcast service, and the first broadcast service corresponding to the first configuration information indicated by the system message does not include a second target broadcast service;

[0111] The terminal receives the second target broadcast service, or the terminal is interested in receiving the second target broadcast service.

[0112] In the embodiments of the present application, in the case that the position of the terminal is not in all the second target broadcast services received by the terminal or the second target broadcast services interested by the terminal, even if the MCCH message is acquired, the reception of the first broadcast service cannot be performed. In this way, since in the case that the first condition is met, it can be considered that the terminal has no first broadcast service that can be received, at this time, even if the MCCH message is acquired, the reception of the first broadcast service cannot be performed. Therefore, in the case that the first condition is met, the MCCH message is not acquired, thereby avoiding the reception of invalid messages and reducing the energy consumption of the terminal.

[0113] Optionally, in some implementations, the terminal can acquire the MCCH message corresponding to the CFR configuration according to at least one of the second CFR configuration and the MCCH configuration, and perform the reception of the second broadcast service based on the configuration (for example, the second CFR configuration) corresponding to the second broadcast service interested.

[0114] Optionally, in some embodiments, the target configuration information can be carried by SIB21.

[0115] Optionally, in some embodiments, in the case that the target configuration information is carried by the system message and the second condition is met, the terminal sets the frequency point priority of the frequency point corresponding to the first target broadcast service to the highest;

[0116] The second condition includes any one of the following:

[0117] In the case that the system message indicates the first configuration information of the first target broadcast service, and the position of the terminal after the cell reselection of the terminal is in the broadcast service area associated with at least one first broadcast service in the first target broadcast service;

[0118] The terminal receives at least part of the at least one first broadcast service, or the terminal is interested in receiving at least part of the at least one first broadcast service.

[0119] In order to better understand the present application, the following is described by some examples.

[0120] Embodiment one: the session area information is carried in SIB20, and the implicit association relationship is carried in MCCH.

[0121] In the present embodiment, the association between the broadcast service and the service area is supported by minimizing the modification on the existing broadcast signaling. The extended service area list information of MCCH is used, and the service area list element and the element in MBS-SessionInfoList-r17 are one-to-one corresponding. The corresponding signaling flow is shown in FIG. 4.

[0122] The configuration of each signaling is as follows:

[0123] Optionally, if the signaling sent by the network side device includes MBSBroadcastConfiguration-v1900, it includes the same number of entries as in MBS-SessionInfoList-r17 and lists them in the same order. The first element in MBSBroadcastConfiguration-v1900 corresponds to the first session identifier in MBS-SessionInfoList-r17. The second element in MBSBroadcastConfiguration-v1900 corresponds to the second session identifier in MBS-SessionInfoList, and so on.

[0124] Optionally, if an element in session-Area-r19 is an empty element (i.e., the Optional coding field indicates that the element does not carry session-AreaIdList-r19), the UE considers that the corresponding MBS broadcast service is allowed to be received in any area covered by the current cell.

[0125] The UE acquires the MCCH message, and in the case of being in the service area of the broadcast service of interest, uses the corresponding configuration of the broadcast service of interest to receive the broadcast service of interest (including establishing a corresponding Multicast Radio Bearer (MRB), applying a corresponding Medium Access Control (MAC), and Physical (PHY) configuration). If not in the service area, the corresponding MRB, MAC, and PHY configuration can be released. The corresponding signaling flow is shown in FIG. 5.

[0126] Embodiment Two: Carrying session area information in the MCCH message.

[0127] In this embodiment, the starting point is the same as in Embodiment One, and carrying session area information in the MCCH message is simpler, but the Transport Block Size (TBS) of the MCCH message is larger, and compared with the SIB20 scheme, the MCCH message can carry fewer maximum services.

[0128] The configuration of each signaling is as follows:

[0129] Alternatively, the association between TMGI and geographical location is directly made without the need of area ID index association. In this case, the configuration of each signaling is as follows:

[0130] In addition, the implementable method can also be that the configuration information of the service associated with the service area is carried in the MCCH extended field, and the corresponding service area information is also carried, so that in the case of using the existing RRC message, the legacy NTN UE can still avoid receiving broadcast services without considering the service area. In this case, the configuration of each signaling is as follows:

[0131] Among them, MBS-SessionAreaInfoList-r19 is the configuration information of the service associated with the service area and the corresponding service area information. Specifically, each element MBS-SessionAreaInfo in the list includes TMGI and service area information, for example:

[0132] If session-AreaIdList-r19 is an empty element, the service area of the service corresponding to the TMGI is the same as the service area of the service corresponding to the element in the MBS-SessionInfoList, or the same as the service area of the service corresponding to the first element in the MBS-SessionInfoList.

[0133] If session-AreaIdList-r19 in MBS-NeighbourCellArea is an empty element, the neighbor cell service area of the service corresponding to the TMGI is the same as the neighbor cell service area of the service corresponding to the element in the MBS-SessionInfoList, or the same as the neighbor cell service area of the service corresponding to the first element in the MBS-SessionInfoList, or the same as the service area of the service in the current service cell. For a service of interest, if the UE judges that its geographical position will be in the neighbor cell service area of the service, the UE can set the frequency corresponding to the service as the highest priority. If the UE has set the frequency to the highest priority (for example, from the fifth highest priority to the highest priority), and the UE judges that its geographical position will be in the neighbor cell service area, the frequency priority is restored to the previous priority value (for example, from the highest priority to the fifth highest priority).

[0134] Optionally, a service distance threshold is associated with each broadcast session (per broadcast session). When the UE obtains the difference between its own geographical position and the reference geographical position of a cell, and the difference is greater than the distance threshold value, the UE considers that it is not in the service area of a broadcast service. Conversely, it is considered to be in the service area of a broadcast service. In addition, the UE can calculate the real-time reference geographical position of the cell according to the ephemeris information, movingReferenceLocation-r18.

[0135] Embodiment three: session area information is carried in a new SIB, and the implicit association relationship is carried in MCCH.

[0136] In this embodiment, considering that some services may not have associated session area information, therefore carrying the session area through SIB20 or MCCH has a negative impact on UE power consumption for legacy NTN UE to receive broadcast services. In order to solve this problem, a new SIB or SIB25 message can be used to carry the session area information. In addition, by using the extended service area list information of MCCH, the service area list element and the element in MBS-SessionInfoList-r17 are one-to-one corresponding. The corresponding signaling flow is shown in FIG. 6.

[0137] Among them, the new SIBx carries the service area information suitable for broadcast in the NTN scenario to help the UE determine when it can receive a broadcast service.

[0138] The SIBx information element (information element) is configured as follows:

[0139] The configuration of the corresponding MCCH is the same as that of embodiment one, and will not be described here.

[0140] UE acquires MCCH message, in case that UE receives MCCH and the service of interest or the broadcast service being received is associated with corresponding broadcast service area information, UE reads SIB25 or SIBx to acquire corresponding broadcast service area associated with the service of interest or the broadcast service being received. In case that UE is in the broadcast service area of interest, UE receives the broadcast service of interest using the corresponding configuration of the broadcast service of interest (including establishing corresponding MRB, applying corresponding MAC, PHY configuration). If UE is not in the broadcast service area, UE releases corresponding MRB, releases MAC, PHY configuration. The corresponding flow chart is shown in FIG. 7.

[0141] Embodiment four: SIB25 carries session area information, and MCCH message carries implicit association relationship.

[0142] In this embodiment, SIB25 is used to carry all NR geographic area information in the same SIB, avoiding SIB dispersion.

[0143] In this embodiment, SIB25 is used to carry all NR geographic area information in the same SIB, avoiding SIB dispersion.

[0144] Embodiment five: SIB20 carries multiple MCCH scheduling information, and MCCH message carries association.

[0145] In this embodiment, in order to avoid that legacy UE receives a broadcast service outside the service area, it is necessary to design broadcast services associated with service areas and per cell broadcast services respectively. For example, a first CFR and a first MCCH configuration are configured for scheduling broadcast services associated with service areas, and then UE receives the first MCCH message and the corresponding broadcast service according to the first CFR configuration and the first MCCH configuration; receives the second MCCH and the corresponding broadcast service according to the second CFR and the second MCCH configuration. For example, the first MCCH message can be scrambled using the first RNTI.

[0146] The configuration of SIB20 enhanced signaling is as follows:

[0147] The configuration of corresponding MCCH is the same as that of embodiment one, and will not be described here.

[0148] The corresponding signaling flow is shown in FIG. 8.

[0149] One implementation of the terminal is as follows: if the UE has the capability of receiving the broadcast service associated with the broadcast service area, and is interested in receiving the broadcast service, and at least one of the first CFR configuration and the first MCCH configuration is configured, the UE acquires the first MCCH message according to at least one of the first CFR configuration and the first MCCH configuration. Meanwhile, the UE acquires the second MCCH message according to at least one of the second CFR configuration and the second MCCH configuration. At this time, the time area of the first MCCH configuration and the second MCCH configuration is ensured not to overlap, that is, the network side device ensures that the UE does not simultaneously receive the first MCCH message and the second MCCH message within one MCCH scheduling window.

[0150] Another implementation of the terminal is as follows: if the UE has the capability of receiving the broadcast service associated with the broadcast service area, and is interested in receiving the broadcast service, and the network side device indicates that the second MCCH-RNTI (the RNTI value of the second MCCH-RNTI configured in the SIB20) is configured or indicates that the second MCCH scheduling is scheduled (such as indicated by the true enumeration variable), the UE simultaneously performs the MCCH PDCCH or MCCH PDSCH reception according to the second MCCH-RNTI and the first MCCH-RNTI assumption in the MCCH scheduling window. In addition, the network side device ensures that the first MCCH PDCCH and the second MCCH PDCCH are not simultaneously scheduled in the same slot.

[0151] The UE acquires the first MCCH message or the second MCCH message, acquires the corresponding broadcast service area associated with the service of interest or the broadcast service being received. If the UE is in the broadcast service area of interest, the UE performs the reception of the broadcast service of interest using the configuration corresponding to the broadcast service of interest (including establishing the corresponding MRB, applying the corresponding MAC, and PHY configuration). If the UE is not in the service area, the UE can release the corresponding MRB, release the MAC, and release the PHY configuration.

[0152] Another implementation of the terminal is as follows: a new MCCH RRC message is introduced, and the UE behavior is the same as described above.

[0153] The configuration of the new MCCH RRC message is as follows:

[0154] The format of the new MCCH is as follows:

[0155] The corresponding signaling flow is shown in FIG. 9.

[0156] Embodiment 6: SIB carries broadcast service providing information and corresponding associated session area, MCCH carries service corresponding configuration.

[0157] In this embodiment, the service information provided by the serving cell and the corresponding associated service area information are provided in the SIB, which helps the UE to determine whether the service of interest to the UE is provided in the current cell before receiving and decoding the MCCH, and whether the UE itself is in the service area corresponding to the service of interest, which is of positive significance for reducing unnecessary MCCH reception of the UE and saving energy consumption of the UE.

[0158] Specifically, one or more broadcast service information (e.g., TMGI) associated with service area information can be carried by SIB20, and the corresponding broadcast service configuration (other configurations of the service in addition to TMGI) can be carried by MCCH. The corresponding signaling flow is shown in FIG. 10.

[0159] Among them, the SIB20 signaling configuration is as follows:

[0160] The corresponding signaling configuration of MCCH is as follows:

[0161] Among them, the number of elements of MBS-SessionIDInfoList-r19 in SIB20 and MBS-AreaSessionInfoList-r19 in MCCH is the same, and they are one-to-one corresponding, for example, the first element in MBS-SessionIDInfoList-r19 corresponds to the first element in MBS-AreaSessionInfoList-r19. The UE determines which broadcast service associated with service location information is provided in the current serving cell according to MBS-SessionIDInfoList-r19, and then determines the service configuration corresponding to a service according to MBS-AreaSessionInfoList-r19.

[0162] UE behavior:

[0163] If all the broadcast services interested by the UE are indicated in the SIB20 (the TMGIs corresponding to the broadcast services interested by the UE are indicated in the SIB20), and the current geographical location of the UE is not in the service area of any of the indicated broadcast services, the UE does not acquire the MCCH. In other words, if the SIB20 is provided by the current serving cell, and there is at least one broadcast service interested by the UE which is not indicated in the SIB20, the UE acquires the MCCH to receive the broadcast service.

[0164] Alternatively, if there is at least one broadcast service interested by the UE which is indicated in the SIB20, and the current geographical location of the UE is in the service area of the indicated broadcast service, the UE acquires the MCCH to receive the broadcast service.

[0165] The corresponding signaling flow is shown in FIG. 11.

[0166] Referring to FIG. 12, the embodiment of the present application further provides a broadcast service transmission method, as shown in FIG. 12, the broadcast service transmission method comprises:

[0167] In step 1201, a network side device sends target configuration information to a terminal, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area.

[0168] Optionally, the first configuration information comprises at least one of the following:

[0169] a first common frequency resource (CFR) configuration;

[0170] a first multicast broadcast service control channel (MCCH) configuration;

[0171] a broadcast service configuration.

[0172] Optionally, the method further comprises:

[0173] the network side device sends an MCCH message to the terminal based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID) and an MCCH message type indication;

[0174] wherein the first RNTI is used to scramble the MCCH message corresponding to the first MCCH configuration, the first LCID is used to indicate the logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the MCCH message type indication is used to indicate the type of the MCCH message.

[0175] Optionally, the broadcast service configuration is carried by at least one of the following:

[0176] an MCCH message extension field;

[0177] an MCCH message scrambled by a first RNTI;

[0178] an MCCH message with a first LCID index;

[0179] an MCCH message with a first message type indication;

[0180] wherein the first RNTI is used to scramble the MCCH message corresponding to the first MCCH configuration, the first LCID is used to indicate the logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the first message type is used to indicate the radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration.

[0181] Optionally, the target configuration information further comprises geographical service area information, which is used to indicate a broadcast service area associated with the first broadcast service.

[0182] Optionally, the geographical service area information comprises at least one of the following:

[0183] a broadcast service area list, which comprises at least one of the following: area information of at least one broadcast service area and an identifier corresponding to the area information of the broadcast service area;

[0184] a broadcast service area combination list, which comprises at least one of the following: area combination information of at least one broadcast service area combination and an identifier corresponding to the area combination information of the broadcast service area combination;

[0185] a distance threshold value, which is used to determine whether the terminal is in a broadcast service area or outside the broadcast service area.

[0186] Optionally, the target configuration information further comprises second configuration information for receiving a second broadcast service, the second broadcast service being a service not associated with a broadcast service area.

[0187] The broadcast service transmission method provided in the embodiments of the present application can be executed by a broadcast service transmission device. The embodiments of the present application take the broadcast service transmission device as an example to illustrate the broadcast service transmission device provided in the embodiments of the present application.

[0188] Embodiments of the present application provide a broadcast service transmission apparatus. As an example, the broadcast service transmission apparatus can be a communication device or a component in the communication device, such as a chip. The communication device can be a terminal, a network side device, a server, or the like. For example, the terminal can include, but is not limited to, the types of the terminal 11 listed above, the network side device can include, but is not limited to, the types of the network side device 12 listed above, and embodiments of the present application do not make specific limitations.

[0189] The broadcast service transmission apparatus includes a receiving module, a sending module, and a processing module. The receiving module, the sending module, and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor. For example, the processor can include a general purpose processor, a special purpose processor, or the like, such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA), or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, or the like. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, or the like.

[0190] Specifically, referring to FIG. 13, when the broadcast service transmission apparatus is a terminal or a component in the terminal, the broadcast service transmission apparatus 1300 includes:

[0191] The receiving module 1301 is configured to obtain target configuration information, the target configuration information including first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area; obtain a broadcast service service area associated with the first broadcast service; and receive the first broadcast service based on the broadcast service service area and the first configuration information.

[0192] Optionally, the first configuration information includes at least one of the following:

[0193] a first common frequency resource (CFR) configuration;

[0194] A first multicast broadcast service control channel (MCCH) configuration;

[0195] A broadcast service configuration.

[0196] Optionally, the receiving module is specifically configured to perform the following operation:

[0197] acquire a MCCH message according to at least one of the first CFR configuration and the first MCCH configuration, wherein the terminal receives the first broadcast service, or the terminal is interested in receiving the first broadcast service;

[0198] acquire a broadcast service service area associated with the first broadcast service according to the MCCH message.

[0199] Optionally, the terminal receives the first broadcast service based on the broadcast service service area and the first configuration information, including:

[0200] receive the first broadcast service according to at least one of the first CFR configuration and the broadcast service configuration in a case that the terminal is in the broadcast service service area associated with the first broadcast service.

[0201] Optionally, the receiving module is specifically configured to acquire a MCCH message based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID) and a MCCH message type indication.

[0202] The first RNTI is used for scrambling a MCCH message corresponding to the first MCCH configuration, the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the MCCH message type indication is used for indicating a type of the MCCH message.

[0203] Optionally, the broadcast service configuration is carried by at least one of the following manners:

[0204] a MCCH message extension field;

[0205] a MCCH message scrambled by a first RNTI;

[0206] a MCCH message with a first LCID index;

[0207] a MCCH message with a first message type indication;

[0208] The first RNTI is used for scrambling a MCCH message corresponding to the first MCCH configuration, the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the first message type is used for indicating a radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration.

[0209] Optionally, the target configuration information further comprises geographic service area information, the geographic service area information being used for indicating a broadcast service service area associated with the first broadcast service.

[0210] Optionally, the geographic service area information comprises at least one of:

[0211] a broadcast service service area list, the broadcast service service area list comprising at least one of: area information of at least one broadcast service service area, and an identifier corresponding to the area information of the at least one broadcast service service area;

[0212] a broadcast service service area combination list, the broadcast service service area combination list comprising at least one of: area combination information of at least one broadcast service service area combination, and an identifier corresponding to the area combination information of the at least one broadcast service service area combination;

[0213] a distance threshold, the distance threshold being used for determining whether the terminal is in a broadcast service service area or outside a broadcast service service area.

[0214] Optionally, in a case where the target configuration information is carried by a system message and a first condition is met, the terminal does not acquire an MCCH message.

[0215] The first condition comprises any one of:

[0216] the system message indicates first configuration information of a first target broadcast service, and a location of the terminal is not in a broadcast service service area associated with any one of second target broadcast services, the first target broadcast service comprising at least one of the first broadcast service;

[0217] the system message indicates that all broadcast services of a cell are the first broadcast service, and the first broadcast service corresponding to the first configuration information indicated by the system message does not comprise the second target broadcast service;

[0218] The terminal receives the second target broadcast service or the terminal is interested in receiving the second target broadcast service.

[0219] Optionally, in a case where the target configuration information is carried by a system message and a second condition is met, the terminal sets a frequency point priority of a frequency point corresponding to a first target broadcast service to be the highest.

[0220] The second condition comprises any one of:

[0221] The system message indicates first configuration information of the first target broadcast service, and a terminal position of the terminal after cell reselection is in a broadcast service service area associated with at least one first broadcast service in the first target broadcast service;

[0222] The terminal receives at least part of the at least one first broadcast service, or the terminal is interested in receiving at least part of the at least one first broadcast service.

[0223] Optionally, the target configuration information further includes second configuration information for receiving a second broadcast service, the second broadcast service being a service not associated with a broadcast service service area.

[0224] Referring to FIG. 14, when the broadcast service transmission apparatus is a network side device or a component in the network side device, the broadcast service transmission apparatus 1400 includes:

[0225] The sending module 1401 is configured to send target configuration information to a terminal, the target configuration information including first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area.

[0226] Optionally, the first configuration information includes at least one of the following:

[0227] A first common frequency resource (CFR) configuration;

[0228] A first multicast broadcast service control channel (MCCH) configuration;

[0229] A broadcast service configuration.

[0230] Optionally, the sending module 1401 is further configured to send an MCCH message to the terminal based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID), and an MCCH message type indication.

[0231] The first RNTI is used to scramble an MCCH message corresponding to the first MCCH configuration, the first LCID is used to indicate a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the MCCH message type indication is used to indicate a type of the MCCH message.

[0232] Optionally, the broadcast service configuration is carried by at least one of the following:

[0233] An MCCH message extension field;

[0234] An MCCH message scrambled by the first RNTI;

[0235] An MCCH message indexed by the first LCID;

[0236] the first message type indicates the MCCH message;

[0237] The first RNTI is used for scrambling the MCCH message corresponding to the first MCCH configuration, the first LCID is used for indicating the logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the first message type is used for indicating the radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration.

[0238] Optionally, the target configuration information further comprises geographical service area information, and the geographical service information is used for indicating a broadcast service area associated with the first broadcast service.

[0239] Optionally, the geographical service area information comprises at least one of the following:

[0240] a broadcast service area list, the broadcast service area list comprising at least one of the following: area information of at least one broadcast service area and an identifier corresponding to the area information of the at least one broadcast service area;

[0241] a broadcast service area combination list, the broadcast service area combination list comprising at least one of the following: area combination information of at least one broadcast service area combination and an identifier corresponding to the area combination information of the at least one broadcast service area combination;

[0242] a distance threshold, the distance threshold being used for determining whether the terminal is in a broadcast service area or outside the broadcast service area.

[0243] Optionally, the target configuration information further comprises second configuration information used for receiving a second broadcast service, the second broadcast service being a service not associated with a broadcast service area.

[0244] The broadcast service transmission apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiments of FIG. 3 to FIG. 12 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0245] As shown in FIG. 15, the embodiments of the present application further provide a communication device 1500, comprising a processor 1501 and a memory 1502, wherein the memory 1502 stores programs or instructions executable on the processor 1501, and the programs or instructions are executed by the processor 1501 to implement each step of the above broadcast service transmission method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0246] The embodiment of the present application further provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiment shown in FIG. 3. The terminal embodiment corresponds to the terminal-side method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the broadcast service transmission apparatus shown in FIG. 13. Specifically, FIG. 16 is a schematic diagram of the hardware structure of a terminal for implementing the embodiment of the present application.

[0247] The terminal 1600 includes, but is not limited to, at least part of components such as a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, and a processor 1610.

[0248] Those skilled in the art can understand that the terminal 1600 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected with the processor 1610 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 16 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or have a different arrangement of components, which will not be described here.

[0249] It should be understood that in the embodiment of the present application, the input unit 1604 can include a graphics processor 16041 and a microphone 16042, and the graphics processor 16041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1606 can include a display panel 16061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1607 includes at least one of a touch panel 16071 and other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 can include two parts of a touch detection device and a touch controller. The other input devices 16072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which will not be described here.

[0250] In the embodiment of the present application, the radio frequency unit 1601 can transmit downlink data from a network side device to the processor 1610 for processing, and can send uplink data to the network side device. Generally, the radio frequency unit 1601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0251] The memory 1609 can be used to store software programs or instructions and various data. The memory 1609 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1609 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1609 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0252] The processor 1610 can include one or more processing units; optionally, the processor 1610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1610.

[0253] The radio frequency unit 1601 is configured to obtain target configuration information, the target configuration information including first configuration information used for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area; obtain a broadcast service service area associated with the first broadcast service; and receive the first broadcast service based on the broadcast service service area and the first configuration information.

[0254] It can be understood that the implementation process of each implementation mode mentioned in the embodiment can refer to the related description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0255] The embodiment of the application further provides a network side device, comprising a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions, and the steps of the method embodiment shown in FIG. 12 are realized. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation mode of the method embodiment described above can be applied to the network side device embodiment, and the same technical effects can be achieved.

[0256] Specifically, the embodiment of the application further provides a network side device, which can be the broadcast service transmission device shown in FIG. 14. As shown in FIG. 17, the network side device 1700 comprises an antenna 1701, a radio frequency device 1702, a baseband device 1703, a processor 1704 and a memory 1705. The antenna 1701 is connected with the radio frequency device 1702. In the uplink direction, the radio frequency device 1702 receives information through the antenna 1701, and sends the received information to the baseband device 1703 for processing. In the downlink direction, the baseband device 1703 processes the information to be sent and sends it to the radio frequency device 1702, and the radio frequency device 1702 processes the received information and sends it out through the antenna 1701.

[0257] The method performed by the network side device in the above embodiment can be implemented in the baseband device 1703, which comprises a baseband processor.

[0258] The baseband device 1703 may, for example, comprise at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 17, one of the chips is, for example, a baseband processor, which is connected with the memory 1705 through a bus interface to call the programs in the memory 1705 and execute the operations of the network side device shown in the above method embodiment.

[0259] The network side device may, for example, further comprise a network interface 1706, which is, for example, a common public radio interface (CPRI).

[0260] Specifically, the network side device 1700 of the embodiment of the application further comprises instructions or programs stored in the memory 1705 and executable on the processor 1704, the processor 1704 calls the instructions or programs in the memory 1705 to execute the method performed by each module shown in FIG. 14, and achieves the same technical effects. To avoid repetition, it will not be described here.

[0261] The embodiment of the present application further provides a readable storage medium, and the readable storage medium stores programs or instructions, which are executed by a processor to realize the processes of the broadcast service transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0262] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0263] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled with the processor. The processor is used to run programs or instructions to realize the processes of the broadcast service transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0264] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0265] The embodiment of the present application further provides a computer program / program product, which includes computer instructions. The computer program / program product is executed by at least one processor to realize the processes of the broadcast service transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0266] The embodiment of the present application further provides a wireless communication system, which includes a terminal and a network side device. The terminal can be used to execute the steps of the broadcast service transmission method on the terminal side. The network side device can be used to execute the steps of the broadcast service transmission method on the network side.

[0267] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing particular embodiments, reference has been made to orientations. However, it is to be understood that the teachings of this patent are not limited in their application to any one of the mentioned orientations, but are applicable to any assembly having the features currently described or hereinafter ascertained.

[0268] From the above description of the embodiments, it is apparent that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0269] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A method for broadcast service transmission, comprising: obtaining, by a terminal, target configuration information, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service area; obtaining, by the terminal, a broadcast service area associated with the first broadcast service; receiving, by the terminal, the first broadcast service based on the broadcast service area and the first configuration information.

2. The method of claim 1, wherein, The first configuration information comprises at least one of: a first common frequency resource (CFR) configuration; a first multicast broadcast service control channel (MCCH) configuration; a broadcast service configuration.

3. The method of claim 2, wherein, The obtaining, by the terminal, of the broadcast service area associated with the first broadcast service comprises: obtaining, by the terminal, an MCCH message according to at least one of the first CFR configuration and the first MCCH configuration, wherein the terminal receives the first broadcast service or the terminal is interested in receiving the first broadcast service; obtaining, by the terminal, the broadcast service area associated with the first broadcast service according to the MCCH message.

4. The method of claim 3, wherein, The obtaining, by the terminal, of the MCCH message comprises: obtaining, by the terminal, the MCCH message based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID) and an MCCH message type indication, wherein the first RNTI is used for scrambling the MCCH message corresponding to the first MCCH configuration, the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the MCCH message type indication is used for indicating a type of the MCCH message. The receiving, by the terminal, of the first broadcast service based on the broadcast service area and the first configuration information comprises:

5. The method of claim 2, wherein, in a case that the terminal is in the broadcast service area associated with the first broadcast service, receiving, by the terminal, the first broadcast service according to at least one of the first CFR configuration and the broadcast service configuration. The broadcast service configuration is carried by at least one of:

6. The method of claim 2, wherein, an MCCH message extension field; an MCCH message scrambled by a first RNTI; an MCCH message indexed by a first LCID; an MCCH message indicated by a first message type; wherein the first RNTI is used for scrambling the MCCH message corresponding to the first MCCH configuration, the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the first message type is used for indicating a radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration. The target configuration information further comprises geographical service area information, the geographical service area information being used for indicating the broadcast service area associated with the first broadcast service.

7. The method of claim 1, wherein, The geographical service area information comprises at least one of:

8. The method of claim 7, wherein, a broadcast service area list, the broadcast service area list comprising at least one of: area information of at least one broadcast service area, and an identifier corresponding to the area information of the broadcast service area. ​ a broadcast service area combination list, the broadcast service area combination list comprising at least one of the following: area combination information of at least one broadcast service area combination, the area combination information corresponding to an identifier; a distance threshold, the distance threshold being used to determine whether the terminal is in a broadcast service area or outside a broadcast service area.

9. The method of claim 8, wherein, In a case where the target configuration information is carried by a system message and a first condition is met, the terminal does not acquire an MCCH message; The first condition comprises any of the following: In a case where the system message indicates first configuration information of a first target broadcast service, and a terminal position of the terminal is not in a broadcast service area associated with any of a second target broadcast service of the first target broadcast service, the first target broadcast service comprising at least one first broadcast service; In a case where the system message indicates that all broadcast services of a cell are the first broadcast service, and the first broadcast service corresponding to the first configuration information indicated by the system message does not comprise the second target broadcast service; The terminal receives the second target broadcast service, or the terminal is interested in receiving the second target broadcast service.

10. The method of claim 8, wherein, In a case where the target configuration information is carried by a system message and a second condition is met, the terminal sets a frequency point priority of a frequency point corresponding to a first target broadcast service to be the highest; The second condition comprises any of the following: In a case where the system message indicates first configuration information of a first target broadcast service, and a terminal position of the terminal after cell reselection is in a broadcast service area associated with at least one first broadcast service of the first target broadcast service; The terminal receives at least part of the at least one first broadcast service, or the terminal is interested in receiving at least part of the at least one first broadcast service.

11. The method of claim 1, wherein, The target configuration information further comprises second configuration information for receiving a second broadcast service, the second broadcast service being a service not associated with a broadcast service area.

12. A broadcast service transmission method, comprising: a network side device sending target configuration information to a terminal, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service area.

13. The method of claim 12, wherein, The first configuration information comprises at least one of the following: a first common frequency resource (CFR) configuration; a first multicast broadcast service control channel (MCCH) configuration; a broadcast service configuration.

14. The method of claim 13, further comprising: the network side device sending an MCCH message to the terminal based on at least one of the following: a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID), and an MCCH message type indication; The first RNTI is used to scramble the MCCH message corresponding to the first MCCH configuration, the first LCID is used to indicate a logical channel identifier of the MCCH message corresponding to the first MCCH configuration, and the MCCH message type indication is used to indicate a type of the MCCH message.

15. The method of claim 13, wherein, The broadcast service configuration is carried by at least one of the following manners: an MCCH message extension field; an MCCH message scrambled by a first RNTI; an MCCH message with a first LCID index; an MCCH message with a first message type indication. The first RNTI is used to scramble the MCCH message corresponding to the first MCCH configuration; the first LCID is used to indicate the logical channel identifier of the MCCH message corresponding to the first MCCH configuration; and the first message type is used to indicate the radio resource control (RRC) message type of the MCCH message corresponding to the first MCCH configuration.

16. The method of claim 12, wherein, The target configuration information further comprises geographic service area information, which is used to indicate a broadcast service area associated with the first broadcast service.

17. The method of claim 16, wherein, The geographic service area information comprises at least one of the following: a broadcast service area list, which comprises at least one of the following: area information of at least one broadcast service area, and an identifier corresponding to the area information of the broadcast service area; a broadcast service area combination list, which comprises at least one of the following: area combination information of at least one broadcast service area combination, and an identifier corresponding to the area combination information of the broadcast service area combination; a distance threshold value, which is used to determine whether the terminal is in a broadcast service area or outside the broadcast service area.

18. The method of claim 12, wherein, The target configuration information further comprises second configuration information for receiving a second broadcast service, the second broadcast service being a service not associated with a broadcast service area.

19. A broadcast service transmission apparatus, comprising: a receiving module, configured to obtain target configuration information, the target configuration information comprising first configuration information for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service area, and obtain a broadcast service area associated with the first broadcast service; receive the first broadcast service based on the broadcast service area and the first configuration information.

20. The apparatus of claim 19, wherein, The first configuration information comprises at least one of the following: a first common frequency resource (CFR) configuration; a first multicast broadcast service control channel (MCCH) configuration; a broadcast service configuration.

21. The apparatus of claim 20, wherein, The receiving module is specifically configured to perform the following operations: obtain an MCCH message according to at least one of the first CFR configuration and the first MCCH configuration, wherein the terminal receives the first broadcast service or the terminal is interested in receiving the first broadcast service; and obtain a broadcast service area associated with the first broadcast service according to the MCCH message.

22. The apparatus of claim 21, wherein, The receiving module is specifically configured to obtain the MCCH message based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID), and an MCCH message type indication. The first RNTI is used for scrambling a MCCH message corresponding to the first MCCH configuration, and the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration.

23. The apparatus of claim 21, wherein, The receiving module is specifically configured to receive the first broadcast service according to at least one of the first CFR configuration and the broadcast service configuration, in a case where the terminal is in a broadcast service service area associated with the first broadcast service. 24.A broadcast service transmission apparatus, comprising: The sending module is configured to send target configuration information to a terminal, the target configuration information comprising first configuration information used for receiving a first broadcast service, the first broadcast service being a service associated with a broadcast service service area.

25. The apparatus of claim 24, wherein, The first configuration information comprises at least one of the following: a first common frequency resource (CFR) configuration; a first multicast broadcast service control channel (MCCH) configuration; a broadcast service configuration.

26. The apparatus of claim 25, wherein, The sending module is further configured to send a MCCH message to the terminal based on at least one of a first radio network temporary identifier (RNTI), a first logical channel identifier (LCID) and a MCCH message type indication; The first RNTI is used for scrambling a MCCH message corresponding to the first MCCH configuration, and the first LCID is used for indicating a logical channel identifier of the MCCH message corresponding to the first MCCH configuration. 27.A terminal, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the broadcast service transmission method according to any one of claims 1 to 10. 28.A network side device, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the broadcast service transmission method according to any one of claims 11 to 19. 29.A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions being executed by a processor to implement the steps of the broadcast service transmission method according to any one of claims 1 to 19. 30.A computer program product, comprising computer instructions, the computer instructions being executed by a processor to implement the steps of the broadcast service transmission method according to any one of claims 1 to 19.

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