CN111263317B

CN111263317B - Broadcast data transmission method and device

Info

Publication number: CN111263317B
Application number: CN201811458746.1A
Authority: CN
Inventors: 赵微; 陈中舟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2021-08-03
Anticipated expiration: 2038-11-30
Also published as: CN111263317A

Abstract

The application provides a broadcast data transmission method and device. The method comprises the following steps: sending a broadcast message to the terminal equipment, wherein the broadcast message carries an end management instruction which is used for indicating that the network equipment is started to perform broadcast transmission with the terminal equipment; sending Physical Downlink Shared Channel (PDSCH) data to terminal equipment through a Broadcast Control Channel (BCCH) in a non-system message (SI) window, wherein the PDSCH data comprises target data, the type of the target data is a broadcast service type, the PDSCH data is data indicated by a Physical Downlink Control Channel (PDCCH) of Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identifier (SI-RNTI) containing system messages, and the non-system message (SI) window is a time period allowing the target data to be sent, so that the transmission of the broadcast service is realized, and the resource overhead of the PDCCH and the PDSCH is reduced.

Description

Broadcast data transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting broadcast data.

Background

With the continuous development of cellular networks, broadcast services have been widely applied in various fields such as transportation, factories, and medical care. Currently, two methods can be used to implement Broadcast services, one method is an enhanced Multimedia Broadcast Multicast Service (eMBMS) technology in Long Term Evolution (LTE). The other is to convert the transmission mode of the broadcast service into a unicast mode.

However, when the eMBMS technology in LTE is adopted, the eMBMS architecture is complex, the newly added network element increases the cost of broadcast service transmission, the newly added special subframes have a certain number limit, and the unicast service of a common user cannot be scheduled when the broadcast service is scheduled, so that the broadcast service transmission is not flexible enough. When the broadcast service is sent in a unicast mode, repeated data is transmitted at an air interface, which wastes air interface resources and cannot meet the actual requirement of high-efficiency transmission of the broadcast service.

Disclosure of Invention

The application provides a broadcast data transmission method and device, which are used for realizing the transmission of broadcast services, reducing the resource overhead of a PDCCH (physical Downlink control channel) and a PDSCH (physical Downlink shared channel) and meeting the actual requirement of high-efficiency transmission of the broadcast services.

In a first aspect, the present application provides a broadcast data transmission method, including:

sending a broadcast message to a terminal device, wherein the broadcast message carries an end management indication which is used for indicating that a network device is started to perform broadcast transmission with the terminal device;

sending Physical Downlink Shared Channel (PDSCH) data to the terminal equipment in a non-system message (SI) window through a Broadcast Control Channel (BCCH), wherein the PDSCH data comprises target data, the type of the target data is a broadcast service type, the PDSCH data is data indicated by a Physical Downlink Control Channel (PDCCH) of a Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identifier (SI-RNTI) containing a system message, and the non-system message (SI) window is a time period for allowing the target data to be sent.

By the broadcast data transmission method provided by the first aspect, the network device can send the broadcast message carrying the end-pipe indication to the terminal device, so that the terminal device knows that the network device has started the broadcast transmission with the terminal device, and thus when the network device determines that the type of the target data is the broadcast service type, the PDSCH data containing the target data is sent to the terminal device by the BCCH transmitting the system message in the non-system message SI window, so that when the terminal device determines that the received broadcast message carries the end-pipe indication, the PDSCH data containing the target data can be obtained by the BCCH in the non-system message SI window according to the PDCCH of the SI-RNTI scrambled CRC, and the target data can be obtained by parsing the PDSCH data, thereby realizing the transmission of the broadcast service, the process is simple and easy, no new network element needs to be added, and the cost is saved, the method has the advantages of no need of a newly-added special subframe, strong compatibility, improved spectrum efficiency, solving the problems of increasing network element cost and wasting air interface resources in the prior art, reducing resource overhead of PDCCH and PDSCH, and meeting the actual requirement of high-efficiency transmission of broadcast services.

In one possible design, before transmitting Physical Downlink Shared Channel (PDSCH) data to the terminal device within a non-system message (SI) window over a Broadcast Control Channel (BCCH), the method further includes:

and receiving a report message sent by the terminal equipment, wherein the report message comprises a capability indication which is used for indicating that the terminal equipment has the broadcast transmission capability with the network equipment.

By the broadcast data transmission method provided by the embodiment, the network device can receive the report message which is sent by the terminal device and contains the capability indication, so that the network device can know that the terminal device with the broadcast transmission capability with the network device exists, the phenomenon that the network device wastes air interface resources because the network device sends target data to the terminal device which is not accessed to the network is avoided, and the air interface resources of the network device are saved.

In a possible design, the report message further includes an encryption/decryption indication or a terminal type indication, where the encryption/decryption indication and the terminal type indication are used to indicate an encryption/decryption manner of the terminal device;

before transmitting Physical Downlink Shared Channel (PDSCH) data to the terminal device within a non-system message (SI) window via a Broadcast Control Channel (BCCH), the method further comprises:

encrypting the target data according to the encryption and decryption indication or the terminal type indication to obtain encrypted target data;

and determining the encrypted target data as the target data.

By the broadcast data transmission method provided by the embodiment, the network equipment can encrypt the target data according to the received encryption and decryption indication or the terminal type indication, so that the safety performance of the broadcast service is improved.

In a possible design, the reporting message is obtained by setting the capability indication in a functional group indicator FGI of the terminal device by the terminal device, or by adding the capability indication in RRC extension information of radio resource control by the terminal device.

encrypting the target data according to a preset encryption and decryption mode to obtain encrypted target data;

and determining the encrypted target data as the target data.

When the network equipment determines that the type of the target data is the broadcast type, the network equipment can encrypt the target data according to a preset encryption and decryption mode agreed with the terminal equipment in advance, the operation is simple and easy to implement, and the safety performance of the broadcast service is improved.

In one possible design, prior to sending the broadcast message to the end device, the method further includes:

and adding or setting the end pipe indication in a system message SI to obtain the broadcast message.

In one possible design, the adding or setting the end pipe indicator in the system message SI to obtain the broadcast message includes:

and adding or setting the end pipe indication in a system message block type 1SIB1 of a system message SI to obtain the broadcast message.

In one possible design, the format of the PDSCH data includes a format of a system message SI or a format of other data.

In a second aspect, the present application provides a broadcast data transmission method, including:

receiving a broadcast message sent by network equipment;

when it is determined that the broadcast message carries an end pipe indication, the end pipe indication is used for indicating that network equipment is started and broadcast transmission is performed between the network equipment and terminal equipment, Physical Downlink Shared Channel (PDSCH) data is obtained in a non-system message (SI) window through a Broadcast Control Channel (BCCH), according to a Physical Downlink Control Channel (PDCCH) of a Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identifier (SI-RNTI) of a system message, the PDSCH data comprises target data, the type of the target data is a broadcast service type, and the non-system message (SI) window is a time period for allowing the target data to be sent;

and analyzing the PDSCH data to obtain the target data.

According to the broadcast data transmission method provided by the second aspect, when terminal equipment determines that a received broadcast message carries an end management indication, PDSCH data containing target data can be obtained according to PDCCH of CRC scrambled by SI-RNTI in a non-system message SI window through BCCH, and the target data can be obtained by analyzing the PDSCH data, so that the transmission of the broadcast service is realized.

In one possible design, the method further includes:

and sending a report message to the network equipment, wherein the report message comprises a capability indication, and the capability indication is used for indicating that the terminal equipment has the broadcast transmission capability with the network equipment.

By the broadcast data transmission method provided by the embodiment, when it is determined that the received broadcast message carries the end pipe indication, the terminal device may send the report message including the competent indication to the network device, so that the network device may know that the terminal device having the broadcast transmission capability with the network device exists, thereby avoiding a phenomenon that the network device wastes air interface resources due to sending target data to the terminal device that is not accessed to the network, and saving the air interface resources of the network device.

the method further comprises the following steps:

decrypting the target data according to the encryption and decryption indication or the terminal type indication to obtain decrypted target data;

and determining the decrypted target data as the target data.

By the broadcast data transmission method provided by the embodiment, the terminal equipment can encrypt the target data according to the encryption and decryption indication or the terminal type indication sent to the network equipment, so that the safety performance of the broadcast service is improved.

In one possible design, before sending the reporting message to the network device, the method further includes:

setting the capability indication in a functional group indicator FGI of the terminal equipment to obtain the report message; alternatively, the first and second electrodes may be,

and adding the capability indication in the Radio Resource Control (RRC) extended message to obtain the report message.

In one possible design, the method further includes:

decrypting the target data according to a preset encryption and decryption mode to obtain decrypted target data;

and determining the decrypted target data as the target data.

By the broadcast data transmission method provided by the embodiment, the terminal equipment can decrypt the target data according to the preset encryption and decryption mode agreed with the network equipment in advance, the operation is simple and easy, and the safety performance of the broadcast service is improved.

In one possible design, the broadcast message is obtained by adding or setting the end pipe indication in a system message SI for the network device.

In a third aspect, the present application provides a network device characterized by,

a first sending module, configured to send a broadcast message to a terminal device, where the broadcast message carries an end pipe indication, and the end pipe indication is used to indicate that a network device has started broadcast transmission with the terminal device;

and the second sending module is used for sending Physical Downlink Shared Channel (PDSCH) data to the terminal equipment in a non-system message (SI) window through a Broadcast Control Channel (BCCH), wherein the PDSCH data comprises target data, the type of the target data is a broadcast service type, the PDSCH data is data indicated by a Physical Downlink Control Channel (PDCCH) of Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identifier (SI-RNTI) containing system messages, and the non-system message (SI) window is a time period for allowing the target data to be sent.

In one possible design, the network device further includes:

and a receiving module, configured to receive a report message sent by the terminal device before the second sending module sends PDSCH data of a physical downlink shared channel to the terminal device in a non-system information SI window through a broadcast control channel BCCH, where the report message includes a capability indication, and the capability indication is used to indicate that the terminal device has a capability of broadcast transmission with the network device.

the network device further includes:

a processing module, configured to encrypt the target data according to the encryption/decryption indication or the terminal type indication before the second sending module sends PDSCH data of a physical downlink shared channel to the terminal device in a non-system message SI window through a broadcast control channel BCCH, so as to obtain encrypted target data; and determining the encrypted target data as the target data.

In a possible design, the processing module is further configured to encrypt the target data according to a preset encryption and decryption manner before the second sending module sends PDSCH data of a physical downlink shared channel to the terminal device in a non-system message SI window through a broadcast control channel BCCH, so as to obtain encrypted target data; and determining the encrypted target data as the target data.

In a possible design, the processing module is further configured to add or set the end pipe indication in a system message SI before the first sending module sends a broadcast message to a terminal device, so as to obtain the broadcast message.

In a possible design, the processing module is specifically configured to add or set the end pipe indication in a system message block type 1SIB1 of a system message SI, so as to obtain the broadcast message.

The beneficial effects of the network device provided in the third aspect and each possible design of the third aspect may refer to the beneficial effects brought by each possible implementation manner of the first aspect, and are not described herein again.

In a fourth aspect, the present application provides a terminal device, comprising:

the receiving module is used for receiving the broadcast message sent by the network equipment;

an obtaining module, configured to, when it is determined that the broadcast message carries an end pipe indication, where the end pipe indication is used to indicate that a network device has been started for broadcast transmission with a terminal device, obtain PDSCH data of a Physical Downlink Shared Channel (PDSCH) according to a Physical Downlink Control Channel (PDCCH) of a Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identity (SI-RNTI) of a system message in a non-system message (SI) window through a Broadcast Control Channel (BCCH), where the PDSCH data includes target data, the type of the target data is a broadcast service type, and the non-system message (SI) window is a time period in which the target data is allowed to be sent;

and the processing module is used for analyzing the PDSCH data to obtain the target data.

In one possible design, the terminal device further includes:

a sending module, configured to send a report message to the network device, where the report message includes a capability indication, and the capability indication is used to indicate that the terminal device has a capability of broadcast transmission with the network device.

the processing module is further configured to decrypt the target data according to the encryption and decryption indication or the terminal type indication to obtain decrypted target data; and determining the decrypted target data as the target data.

In a possible design, the processing module is further configured to set the capability indication in a functional group indicator FGI of the terminal device before the sending module sends the reporting message to the network device, so as to obtain the reporting message; or, the capability indication is added to the radio resource control RRC extension message to obtain the report message.

In a possible design, the processing module is further configured to decrypt the target data according to a preset encryption and decryption manner, so as to obtain decrypted target data; and determining the decrypted target data as the target data.

The beneficial effects of the terminal device provided in the fourth aspect and in each possible design of the fourth aspect may refer to the beneficial effects brought by each possible implementation manner of the second aspect, and are not described herein again.

In a fifth aspect, the present application provides a network device, comprising:

a memory and a processor;

the memory is to store program instructions;

the processor is configured to invoke program instructions in the memory to perform the first aspect and any one of the possible designs of the first aspect of the broadcast data transmission method.

In a sixth aspect, the present application provides a terminal device, including:

a memory and a processor;

the memory is to store program instructions;

the processor is configured to call program instructions in the memory to perform the second aspect and the broadcast data transmission method in any one of the possible designs of the second aspect.

In a seventh aspect, the present application provides a readable storage medium, where execution instructions are stored, and when at least one processor of a network device executes the execution instructions, the network device executes the broadcast data transmission method in any one of the possible designs of the first aspect and the first aspect.

In an eighth aspect, the present application provides a readable storage medium, where execution instructions are stored, and when at least one processor of a terminal device executes the execution instructions, the terminal device executes the broadcast data transmission method in any one of the possible designs of the second aspect and the second aspect.

In a ninth aspect, the present application provides a program product comprising executable instructions, the executable instructions being stored in a readable storage medium. The at least one processor of the network device may read the executable instructions from the readable storage medium, and the execution of the executable instructions by the at least one processor causes the network device to implement the broadcast data transmission method in any one of the possible designs of the first aspect and the first aspect.

In a tenth aspect, the present application provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the terminal device may read the executable instructions from the readable storage medium, and the execution of the executable instructions by the at least one processor causes the terminal device to implement the broadcast data transmission method according to the second aspect and any one of the possible designs of the second aspect.

In an eleventh aspect, the present application provides a chip, where the chip is connected to a memory, or where the chip has a memory integrated thereon, and when a software program stored in the memory is executed, the method for transmitting broadcast data in any one of the possible designs of the first aspect and the first aspect or any one of the possible designs of the second aspect and the second aspect is implemented.

Drawings

FIG. 1 is a schematic diagram of a communication system architecture;

fig. 2 is an interaction flowchart of an embodiment of a broadcast data transmission method provided in the present application;

fig. 3 is an interaction flowchart of an embodiment of a broadcast data transmission method provided in the present application;

fig. 4 is a schematic structural diagram of an embodiment of a network device provided in the present application;

fig. 5 is a schematic structural diagram of an embodiment of a network device provided in the present application;

fig. 6 is a schematic structural diagram of an embodiment of a network device provided in the present application;

fig. 7 is a schematic structural diagram of an embodiment of a terminal device provided in the present application;

fig. 8 is a schematic structural diagram of an embodiment of a terminal device provided in the present application;

fig. 9 is a schematic structural diagram of a network device provided in the present application;

fig. 10 is a schematic structural diagram of a terminal device provided in the present application.

Detailed Description

The embodiment of the present application can be applied to a wireless communication system, and it should be noted that the wireless communication system mentioned in the embodiment of the present application includes but is not limited to: narrowband Band-Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data rates for GSM Evolution (EDGE), WideBand Code Division Multiple Access (WCDMA), Code Division Multiple Access (Code Division Multiple Access, CDMA2000), Time Division synchronous Code Division Multiple Access (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA), Long Term Evolution (Long Term Evolution, LTE), and fifth Generation Mobile communication (the5th Generation Mobile communication technology, 5G) systems.

The communication device related to the application mainly comprises network equipment and terminal equipment.

A network device: which may be a base station, or an access point, or an access network device, or may refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The network device may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The network device may also coordinate attribute management for the air interface. For example, the network device may be an evolved Node B (eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, or a base station in a 5G network, such as a gNB, and the like, which is not limited herein.

The terminal equipment: which may be wireless or wireline, and which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers with mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via the RAN, and may exchange language and/or data with a radio access network. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

Fig. 1 is a schematic diagram of a communication system architecture, and as shown in fig. 1, a communication system according to an embodiment of the present application may include one or more network devices and one or more terminal devices, where the network devices and the terminal devices perform communication.

In order to solve the problem of wasting air interface resources due to repeated sending of broadcast data, at present, two feasible implementation manners are generally adopted, one is to adopt an eMBMS technology in LTE to transmit the broadcast data; the other is to convert the broadcast data into unicast mode for data transmission.

When the eMBMS technology in LTE is adopted, the eMBMS Network architecture is formed by adding three new Network elements in an existing Wideband Code Division Multiple Access (WCDMA) Network architecture, where the three Network elements are a dynamic management function entity (MCE), an E-MBMS Gateway (Gateway), and a functional entity Broadcast multicast service center (BM-SC), and the eMBMS technology can support transmission of a control plane and a user plane of a Multimedia Broadcast and multicast service, and schedule the Broadcast service by adding a new (MBSFN) subframe. However, the eMBMS network architecture is complex, the cost is increased by the newly added network elements, the number of newly added MBSFN subframes is limited to a certain amount, the unicast service of a common user cannot be scheduled when the broadcast service is scheduled, and the flexibility is not sufficient, so that the utilization rate of air interface resources is low, and the backward evolution is poor.

When the broadcast service is sent in a unicast mode, although no network element needs to be added, after the terminal equipment and the network equipment are connected, the network equipment converts the broadcast data into unicast data to be sent out, and the unicast mode is used for point-to-point transmission in a cellular network. For example, in the power industry, after a terminal device establishes a connection with a master station, the master station performs clock synchronization on the terminal device accessed by the master station, where the clock synchronization includes initial synchronization and periodic synchronization. When the master station performs periodic synchronous grant on the terminal device, the master station needs to periodically send the time grant data to the terminal device on line in a unicast mode. However, repeated data is transmitted over the air interface in a unicast manner, which causes resource waste of a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) to a great extent, reduces spectrum utilization, and once more terminal devices access the cellular network, the unicast manner cannot meet the requirement for high spectrum efficiency.

In order to solve the above problem, an embodiment of the present application provides a Broadcast data transmission method, where a Network device sends Downlink Shared Channel (PDSCH) data carrying target data corresponding to a Broadcast service to a terminal device in a non-SI window through a Broadcast Control Channel (BCCH) of a System message (SI), that is, a PDCCH scrambled by a Radio Network temporary Identity (SI-RNTI) of the System message, and the terminal device monitors the PDCCH in the non-SI window to obtain PDSCH data, and then parses the PDSCH data to obtain the target data, so that efficient transmission of the Broadcast service is achieved, and waste of air interface resources is reduced. The following describes a broadcast data transmission method and apparatus provided in an embodiment of the present application in detail with reference to the accompanying drawings.

Fig. 2 is an interaction flowchart of an embodiment of a broadcast data transmission method provided in the present application, and as shown in fig. 2, the method of the present embodiment may include:

s101, the network equipment sends a broadcast message to the terminal equipment, wherein the broadcast message carries an end management indication, and the end management indication is used for indicating that the network equipment is started to perform broadcast transmission with the terminal equipment.

Those skilled in the art will understand that the SI may include a Master Information Block (MIB), a System message Block Type1 (SIB) 1, SIB1) and SIBs (SIBs other than SIB1, such as SIB2-SIBn, n >2, n is a positive integer), and the MIB includes the most basic and most common parameters of a limited Number of downlink System bandwidth, Physical Hybrid automatic repeat Indicator Channel (ARQ Indicator Channel, PHICH) configuration Information and System Frame Number (SFN) for allowing the terminal device to access the cell. The SIB1 includes scheduling information for broadcasting cell access and cell selection related parameters and SIBs.

In this embodiment, the network device may add or set the end pipe indication in the SI to obtain the broadcast message. Specifically, the network device may set an end pipe indication within an extension field in any one or more system message blocks of the SI.

For example, an end pipe indication is set in the extension field of SIB1, the end pipe indication may have three bytes, and the first byte is set as the result of modulo operation of Least Significant Bit LSB (LSB) and 256 of Cell identity (Cell-Id). The second byte may be set as a peer pipe indication byte of the network device, a sixth bit of the second byte may be used to indicate whether the network device turns on the broadcast transmission with the terminal device, a binary "1" indicates turning on, and a binary "0" indicates not turning on. The seventh bit and the eighth bit of the second byte are reserved bits, and can default to binary "0". Other bits of the second byte may set other characteristics of the network device. The third byte may be fixedly set to binary "10101011".

In addition, the network device may also add or set the end pipe indication in other messages to obtain the broadcast message, which is not limited in this embodiment of the present application. In the embodiment of the present application, the end management indication may include, but is not limited to, a logo or a code, where "end" refers to a terminal device and "management" refers to a network device.

Furthermore, the network device may send broadcast information carrying the end pipe identifier to the terminal device, so that the terminal device can recognize that the network device is started and broadcast transmission between the terminal device and the terminal device is performed according to the end pipe identifier, and can know that end pipe cooperative broadcast can be realized with the network device.

S102, the network equipment sends PDSCH data to the terminal equipment in a non-SI window through BCCH, the PDSCH data comprises target data, the type of the target data is a broadcasting service type, the PDSCH data is data indicated by a PDCCH (physical downlink control channel) containing CRC (cyclic redundancy check) scrambled by SI-RNTI, and the non-SI window is a time period allowing the target data to be sent.

Those skilled in the art will appreciate that there are three communication modes currently available in a network, unicast, broadcast and multicast respectively. The network device may also generally receive a type identification of the target data at the same time as receiving the target data. The network device may determine the type of the target data, i.e. unicast type, broadcast type or multicast type, according to the type identifier. Therefore, when the network device determines that the type of the received target data is the broadcast service type, the network device can send the PDSCH data containing the target data to the terminal device through the BCCH. The target data may be service data that needs to be broadcasted by the network device, and the target data is other data except for the system message SI, and the type of the target data is different from that of the system message SI, and generally, the type of the target data is a broadcast service type, and the broadcast service type refers to a data type that performs centralized processing on terminal devices or some terminal devices in a certain area.

In addition, the embodiment of the present application does not limit the specific implementation manner of the network device receiving the target data. For example, the network device may receive a broadcast packet carrying target data sent by a core network, where the broadcast packet is a broadcast packet sent by a service server or a terminal device received by the core network.

The Core network is a gateway (gateway Way, GW) in the 4th Generation mobile communication technology (4G) system, and is a 5G Core network (5 GC) in the 5G system. The core network can identify the broadcast message and match the list of network devices, and send the broadcast message to the corresponding network devices through the private GTP-U tunnel. The GPRS Tunneling Protocol (GTP) is a group of IP-based higher-level protocols, is located on protocols such as TCP/IP or UDP/IP, and is mainly used for supporting a General Packet Radio Service (GPRS) communication Protocol in GSM, UMTS and LTE networks, GTP can be decomposed into three independent protocols, GTP-U is one of the protocols, GTP-U is used for transmitting user data between a Radio access network and a core network in the GPRS core network, and user data packets can be transmitted in any format of IPv4, IPv6 or PPP.

It will be appreciated by those skilled in the art that during transmission of the SI, SIB1 is transmitted on the DL-SCH as a separate message, not mapped into any SI message. Specifically, the scheduling period of the SIB1 is 80ms, and the SIB1 is transmitted only in subframe No. 5 (since subframe No. 5 in the LTE-TDD configuration is a downlink subframe and is Time Division Duplex (TDD)), so that SIB1 is repeatedly transmitted 4 times in 80ms, and if the SFN meets the condition SFN mod 8 ═ 0, the subframe No. 5 of the system frame is to transmit the SIB1 of the current period for the first Time, and then to repeatedly transmit the SIB1 in other subframe No. 5 in which the SFN meets the condition SFN mod 2 ═ 0 in the same period.

SIBs other than SIB1 have no fixed scheduling period and are carried in the systemlnformation message, and the mapping of SIBs to systemlnformation message is flexibly configured by the scheduling information in SIB 1. The limitations are: each SIB is contained in only one systemlnformation message, only SIBs having the same scheduling requirements (i.e., scheduling period) can be mapped into the same systemlnformation message, and systemlnformationblocktype 2(SIB2) is always mapped into the SI message corresponding to the first entry in the SI message list in the SIB1 scheduling information. There may be multiple SI messages sent with the same periodicity.

In order to avoid transmitting SI multiple times at the same time, the transmission timing of each SI is limited to a separate window, which is called an SI window. Typically, there is one SI window per SI, and different SI windows do not overlap. In a certain SI window, only the SI corresponding to the SI window is sent, and other SIs are not sent. And the window lengths of all SIs are equal, the values can be configured in SIB 1. In an SI window, the SI corresponding to the window may be transmitted multiple times and may be transmitted in any subframe, and it should be noted that the subframes do not include MBSFN subframes, TDD uplink subframes, and transmission subframes occupied by SIB 1.

Further, since the SI is not transmitted in the entire scheduling period of the SI, the network device may determine, in the scheduling period of the SI, a time period corresponding to non-transmission of the SI, and create a non-SI window in the time period, so that the target data is transmitted only in the non-SI window. Furthermore, the network device can transmit the PDSCH data containing the target data to the terminal device in the non-SI window by transmitting the BCCH of SI, thereby completing the process of transmitting the target data from the network device to the terminal device and realizing the transmission of the broadcast service.

The PDSCH data may adopt an SI format (e.g., SIB format) or a custom format, which is not limited in the embodiment of the present application. When the PDSCH data adopts SIB format, in order to avoid overlapping with the message of SI, the network device may set the format of the PDSCH data in a matching manner according to the type of the terminal device or the content of the target data.

For example, the SIB100 format is adopted to set PDSCH data corresponding to the control of turning on and off the lamp, and the specific content is as follows:

SystemInformationBlockType100 information element: SIB100 information elements

-ASN1 START: start of

SystemInformationBlockType100:: {: details of SIB100 information

SerialNumber BIT STRING (SIZE (16)): SerialNumber is instruction information for controlling lamps and the like, is 16 bits, and is fully closed if binary system '0000000000000000' is fully closed and binary system '0000000000000001' is fully opened

}

-ASN1 STOP: end up

In addition, when the PDSCH data is in the custom format, the network device may select to use a Modulation and Coding Scheme (MCS) in the conventional broadcast packet by using the format of the conventional broadcast packet, so as to implement rate configuration in LTE. The MCS uses the concerned factors affecting the communication rate as the list of the table, and uses the MCS index as the row to form a rate table, i.e. each MCS index corresponds to the physical transmission rate under a set of parameters. Or comprehensive judgment can be carried out according to the signal quality of the terminal equipment which needs to receive the broadcast message currently, and a higher-order MCS is selected. In addition, the network device may also adopt other custom formats.

S103, when the terminal equipment determines that the broadcast message carries an end pipe indication, the end pipe indication is used for indicating that the network equipment is started and performs end pipe cooperative broadcast transmission with the terminal equipment, PDSCH data is obtained through a PDCCH of a CRC scrambled by an SI-RNTI in a non-SI window, the PDSCH data comprises target data, the type of the target data is a broadcast service type, and the non-SI window is a time period allowing the target data to be sent.

And S104, the terminal equipment analyzes the PDSCH data to obtain target data.

In the embodiment of the application, when receiving the broadcast message sent by the network device, the terminal device can determine whether the broadcast message carries the end pipe indication. And when it is determined that the broadcast message carries the end pipe indication, the terminal device may recognize that the network device has opened a channel for transmitting SI to broadcast the transmission target data.

Further, the terminal device can determine whether to receive the PDSCH data according to the SI-RNTI on the PDSCH, so that the terminal device can determine whether to receive the PDSCH data in the non-SI window according to the SI-RNTI on the PDSCH, and the terminal device can parse the PDSCH data to obtain target data when receiving the PDSCH data, so that the terminal device can transmit the target data to an application layer of the terminal device for processing, and thus, the network device does not need to broadcast the target data to each terminal device, and resource overhead of the PDCCH and the PDSCH is saved.

For example, only one overhead calculation is performed for PDCCH, and if there are X terminal devices, the network device needs X terminal devices to transmit target data X times in a unicast manner. In the embodiment of the application, the network device only needs to send the target data once, and the X terminal devices can receive the target data, so that repeated transmission of the X-1 times of target data is reduced, and air interface resources are saved.

In the broadcast data transmission method provided by the embodiment of the application, the network device sends the broadcast message carrying the end pipe indication to the terminal device, and the end pipe indication can indicate the terminal device that the network device has started the broadcast transmission with the terminal device, so that when the network device determines that the type of the target data is the broadcast service type, the network device sends the PDSCH data containing the target data to the terminal device in the non-system message SI window through the BCCH for transmitting the system message. Furthermore, when the terminal device determines that the received broadcast message carries the end pipe indication, the terminal device can obtain the PDSCH data containing the target data according to the PDCCH of the CRC scrambled by the SI-RNTI in the non-system message SI window through the BCCH, and the terminal device can obtain the target data by analyzing the PDSCH data. In the embodiment of the application, the network equipment utilizes a transmission channel for transmitting the system information, the transmission process of the broadcast service can be realized by upgrading the system of the network equipment and the terminal equipment, the process is simple and easy to implement, no new network element is required to be added, the cost is saved, no new special subframe is required to be added, the compatibility is strong, the spectrum efficiency is improved, the problems of network element cost increase and air interface resource waste in the prior art are solved, the resource overhead of PDCCH and PDSCH is reduced, and the actual requirement of high-efficiency transmission of the broadcast service is met.

The following describes the technical solution of the embodiment of the method shown in fig. 2 in detail by using a specific embodiment.

Fig. 3 is an interaction flowchart of an embodiment of a broadcast data transmission method provided in the present application, and as shown in fig. 3, the method of the present embodiment may include:

s201, the network equipment sends a broadcast message to the terminal equipment, wherein the broadcast message carries an end management indication, and the end management indication is used for indicating that the network equipment is started to perform end broadcast transmission with the terminal equipment.

S200, the terminal equipment sends a report message to the network equipment, wherein the report message comprises a capability indication, and the capability indication is used for indicating that the terminal equipment has the broadcast transmission capability with the network equipment.

S202, the network equipment sends PDSCH data to the terminal equipment in a non-SI window through BCCH, the PDSCH data comprises target data, the type of the target data is a broadcasting service type, the PDSCH data is data indicated by a PDCCH (physical downlink control channel) containing CRC (cyclic redundancy check) scrambled by SI-RNTI, and the non-SI window is a time period allowing the target data to be sent.

S203, the terminal equipment determines that the broadcast message carries an end pipe indication, the end pipe indication is used for indicating that the network equipment is started and performs end pipe cooperative broadcast transmission with the terminal equipment, PDSCH data is obtained in a non-SI window through a BCCH (broadcast control channel) according to a PDCCH (physical downlink control channel) of a CRC (cyclic redundancy check) scrambled by an SI-RNTI (radio network temporary identifier), the PDSCH data comprises target data, the type of the target data is a broadcast service type, and the non-SI window is a time period allowing the target data to be sent.

And S204, the terminal equipment analyzes the PDSCH data to obtain target data.

S201, S202, S203, and S204 are similar to the specific implementation manners of S101, S102, S103, and S104 in the embodiment of fig. 2, and are not described herein again.

Specifically, in S200, after the terminal device determines that the broadcast message carries the end pipe indication, the terminal device may send its own report message to the network device in a unicast manner, so that the network device can know that the terminal device has (i.e., supports) the ability of performing end pipe cooperative broadcast with the terminal device according to the ability indication in the report message. Therefore, the network device can determine that the terminal device which can acquire the target data through the BCCH of the SI exists, and the network device sends the PDSCH data to the terminal device in the non-SI window through the BCCH so as to avoid wasting air interface resources.

The embodiment of the present application does not limit the specific manner in which the terminal device obtains the report message. Two specific implementations are described below.

In a feasible implementation manner, the terminal device may set a capability indication in a Feature Group Indicator (FGI) of the terminal device to obtain the report message. Specifically, the terminal device may set a capability indication at one or more reserved locations of the FGI, such as bit 131 and bit 132 in the FGI, such as binary "11" representing that the terminal device has the capability and binary "01" representing that the terminal device does not have the capability.

In another possible implementation manner, the terminal device may add a capability indication in a Radio Resource Control (RRC) extension message, where the capability indication includes but is not limited to an identifier or a code, so as to obtain the report message.

In order to ensure that reliable broadcasting of data can be performed between the network device and the terminal device through the BCCH carrying the SI, the network device may agree with the terminal device in advance with a preset encryption/decryption manner, so that the network device may encrypt target data according to the preset encryption/decryption manner before transmitting PDSCH data to the terminal device to obtain encrypted target data, and then determine the encrypted target data as target data, so that the network device may transmit the target data (i.e., the encrypted target data) to the terminal device, thereby improving the security performance of data broadcasting.

The embodiment of the present application does not limit the specific implementation form of the preset encryption and decryption manner.

In addition, the terminal device may also send the encryption and decryption mode to the network device through the reported information, so that the network device knows the encryption and decryption mode that the terminal device can use in the current state, or the network device may replace the preset encryption and decryption mode with the received encryption and decryption mode, and further, the network device may encrypt the target data by using the latest encryption and decryption mode.

Because the network device may store the encryption and decryption instructions corresponding to different encryption and decryption manners in advance, the report message sent by the terminal device to the network device may further include: and the encryption and decryption instruction is used for indicating the encryption and decryption modes of the terminal equipment. Since the network device may also store the corresponding relationship between different encryption and decryption manners and the terminal type indication in advance, the report message sent by the terminal device to the network device may further include: and the terminal type indication is adopted, so that the network equipment can obtain a corresponding encryption and decryption mode according to the terminal type indication.

The terminal type indication indicates the type of the terminal device, and can be set according to the properties of the terminal device, such as the industry, the function and the like. By way of example, the types of terminal devices may include, but are not limited to, medical type terminal devices, service type terminal devices, industrial type terminal devices, and the like.

Furthermore, before the network device sends the PDSCH data to the terminal device, the network device encrypts the target data in a corresponding encryption and decryption manner to obtain encrypted target data, and then determines the encrypted target data as the target data, so that the terminal device can send the target data (i.e., the encrypted target data) to the terminal device, thereby improving the security performance of data broadcasting.

Correspondingly, when the network device encrypts the target device, the target data obtained by the terminal device analyzing the PDSCH data in S204 is the encrypted target data, so that when the terminal device does not send an encryption/decryption manner to the network device, the terminal device may decrypt the target data by using a preset encryption/decryption manner to obtain the decrypted target data. When the terminal equipment sends the encryption and decryption mode to the network equipment in a mode of reporting messages containing encryption and decryption instructions or terminal type instructions and the like, the terminal equipment decrypts the target data according to the encryption and decryption mode sent to the network equipment to obtain the decrypted target data. Specifically, the terminal device may decrypt the target data according to the encryption/decryption instruction or the terminal type instruction, so as to obtain decrypted target data. Thus, the terminal device can obtain the target data before the network device encrypts.

Furthermore, no matter which encryption and decryption mode is adopted by the network device and the terminal device, the network device can realize reliable transmission of the target data by adopting the encryption and decryption mode consistent with the terminal device, and correspondingly, the terminal device can realize safe acquisition of the target data by adopting the encryption and decryption mode consistent with the network device, so that the safety performance of the broadcast service is ensured.

It should be noted that: if the network device receives the report message carrying the encryption and decryption indication or the terminal type indication sent by the terminal device, the network device may also directly transmit the target data without adopting any encryption and decryption manner. In addition, the target data itself can also be encrypted and decrypted data, so that the re-encryption process of the network equipment enables the target data to have double guarantee.

The broadcast data transmission method provided in the embodiment of the application, by sending a broadcast message carrying an end pipe indication to a terminal device by a network device, where the end pipe indication can indicate to the terminal device that the network device has started broadcast transmission with the terminal device, and when the terminal device determines that the received broadcast message carries the end pipe indication, the terminal device can send a report message containing the capability indication to the network device, so that the network device can know that the terminal device having the capability of broadcast transmission with the network device exists, avoid the phenomenon that the network device wastes air interface resources by sending target data to the terminal device that is not accessed to the network, save the air interface resources of the network device, and thus when the network device determines that the type of the target data is a broadcast service type, the network device can transmit the BCCH of the system message in a non-system message SI window, and transmitting the PDSCH data containing the target data to the terminal equipment. Furthermore, the terminal equipment can obtain PDSCH data containing target data according to the PDCCH of the CRC scrambled by the SI-RNTI in a non-system message SI window through the BCCH, and the terminal equipment can obtain the target data by analyzing the PDSCH data. In the embodiment of the application, when the network device learns that the terminal device has the end-pipe cooperative broadcasting capability, the transmission channel for transmitting the system message is utilized, the transmission process of the broadcasting service can be realized by upgrading the system of the network device and the terminal device, the waste of air interface resources is avoided, no new network element needs to be added, the cost is saved, no new special subframe needs to be added, the compatibility is strong, the spectrum efficiency is improved, the problems of network element cost increase and air interface resource waste in the prior art are solved, the resource overhead of the PDCCH and the PDSCH is reduced, and the actual requirement of high-efficiency transmission of the broadcasting service is met. In addition, before the network device sends the PDSCH data to the terminal device, the network device may encrypt the target data in a pre-agreed encryption/decryption manner or in an encryption/decryption manner reported by the terminal device, and then send the target data to the terminal device in a non-SI window through BCCH.

It is to be understood that, in the above-described method embodiments, the operations performed by the terminal device may also be implemented by a component (e.g., a chip or a circuit) available for the terminal, and the operations performed by the network device may also be implemented by a component (e.g., a chip or a circuit) available for the network device.

Fig. 4 is a schematic structural diagram of an embodiment of a network device provided in the present application, where the network device may also be a component (e.g., a chip or a circuit) that can be used in the network device, and as shown in fig. 4, the network device of the present embodiment may include: the terminal comprises a first sending module 11 and a second sending module 12, wherein the first sending module 11 is configured to send a broadcast message to the terminal device, the broadcast message carries an end pipe indication, and the end pipe indication is used for indicating that the network device is started and broadcasting transmission between the network device and the terminal device is performed;

a second sending module 12, configured to send PDSCH data of a physical downlink shared channel to the terminal device through a broadcast control channel BCCH in a non-system message SI window, where the PDSCH data includes target data, the type of the target data is a broadcast service type, the PDSCH data is data indicated by a PDCCH of a cyclic redundancy check CRC scrambled by a radio network temporary identifier SI-RNTI of a system message, and the non-system message SI window is a time period in which the target data is allowed to be sent.

Fig. 5 is a schematic structural diagram of an embodiment of a network device provided in the present application, and as shown in fig. 5, the network device of the present embodiment may further include, on the basis of the structure shown in fig. 4: a receiving module 13, where the receiving module 13 receives a report message sent by the terminal device before the second sending module 12 sends the PDSCH data of the physical downlink shared channel to the terminal device in a non-system information SI window through a broadcast control channel BCCH, where the report message includes a capability indication, and the capability indication is used to indicate that the terminal device has a capability of broadcast transmission with the network device.

Optionally, the report message further includes an encryption/decryption indication or a terminal type indication, where the encryption/decryption indication and the terminal type indication are used to indicate an encryption/decryption manner of the terminal device;

fig. 6 is a schematic structural diagram of an embodiment of a network device provided in the present application, and as shown in fig. 6, the network device of the present embodiment may further include, on the basis of the structure shown in fig. 5: a processing module 14, wherein the processing module 14 is configured to encrypt the target data according to the encryption/decryption indication or the terminal type indication before the second sending module 12 sends the PDSCH data of the physical downlink shared channel to the terminal device in a non-system message SI window through a broadcast control channel BCCH, so as to obtain encrypted target data; and determining the encrypted target data as the target data.

Optionally, the reporting message is obtained by setting, by the terminal device, the capability indication in a functional group indicator FGI of the terminal device, or by adding, by the terminal device, the capability indication in radio resource control RRC extension information.

Optionally, the processing module 14 is further configured to encrypt the target data according to a preset encryption and decryption manner before the second sending module 12 sends the PDSCH data of the physical downlink shared channel to the terminal device in a non-system message SI window through a broadcast control channel BCCH, so as to obtain encrypted target data; and determining the encrypted target data as the target data.

Optionally, the processing module 14 is further configured to add or set the end pipe indication in a system message SI before the first sending module 11 sends a broadcast message to a terminal device, so as to obtain the broadcast message.

Optionally, the processing module 14 is specifically configured to add or set the end pipe indication in a system message block type 1SIB1 of the system message SI, so as to obtain the broadcast message.

Optionally, the format of the PDSCH data includes a format of a system message SI or a format of other data.

The network device of this embodiment may be configured to execute the technical solutions of the method embodiments shown in fig. 2 or fig. 3, and the implementation principles and technical effects are similar, where operations implemented by each module may further refer to the relevant descriptions of the method embodiments, and are not described herein again. The modules herein may also be replaced with components or circuits.

Fig. 7 is a schematic structural diagram of an embodiment of a terminal device provided in the present application, where the terminal device may also be a component (e.g., a chip, a circuit) that can be used in the terminal device, and as shown in fig. 7, the terminal device according to the embodiment of the present application may include: the device comprises a receiving module 21, an obtaining module 22 and a processing module 23, wherein the receiving module 21 is used for receiving a broadcast message sent by a network device;

an obtaining module 22, configured to, when it is determined that the broadcast message carries an end pipe indication, where the end pipe indication is used to indicate that a network device has started broadcast transmission with a terminal device, obtain PDSCH data of a Physical Downlink Shared Channel (PDSCH) according to a Physical Downlink Control Channel (PDCCH) of a Cyclic Redundancy Check (CRC) scrambled by a radio network temporary identity (SI-RNTI) of a system message in a non-system message (SI) window through a Broadcast Control Channel (BCCH), where the PDSCH data includes target data, the type of the target data is a broadcast service type, and the non-system message (SI) window is a time period in which the target data is allowed to be sent;

and the processing module 23 is configured to parse the PDSCH data to obtain the target data.

Fig. 8 is a schematic structural diagram of an embodiment of a terminal device provided in the present application, and as shown in fig. 8, the terminal device of the present embodiment may further include, on the basis of the structure shown in fig. 7: a sending module 24, where the sending module 24 is configured to send a report message to the network device, where the report message includes a capability indication, and the capability indication is used to indicate that the terminal device has a capability of broadcast transmission with the network device.

the processing module 23 is further configured to decrypt the target data according to the encryption/decryption instruction or the terminal type instruction, so as to obtain decrypted target data; and determining the decrypted target data as the target data.

Optionally, the processing module 23 is further configured to set the capability indication in a functional group indicator FGI of the terminal device before the sending module 24 sends the report message to the network device, so as to obtain the report message; or, the capability indication is added to the radio resource control RRC extension message to obtain the report message.

Optionally, the processing module 23 is further configured to decrypt the target data according to a preset encryption and decryption manner, so as to obtain decrypted target data; and determining the decrypted target data as the target data.

Optionally, the broadcast message is obtained by adding or setting the end pipe indication in a system message SI by the network device.

The terminal device of this embodiment may be configured to execute the technical solutions of the method embodiments shown in fig. 2 or fig. 3, and the implementation principles and technical effects are similar, where the implementation operations of each module may further refer to the relevant descriptions of the method embodiments, and are not described herein again. The modules herein may also be replaced with components or circuits.

The present application may perform functional module division on the network device or the terminal device according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only one division of logic functions, and there may be another division manner in actual implementation.

Fig. 9 is a schematic structural diagram of a network device provided in the present application, where the network device 200 includes:

a memory 201 for storing program instructions, the memory 201 may be a flash (flash memory).

A processor 202, configured to call and execute program instructions in the memory to implement the steps of the corresponding network device in the broadcast data transmission method of fig. 2 or fig. 3. Reference may be made in particular to the description relating to the preceding method embodiment.

An input/output interface 203 may also be included. The input/output interface 203 may include a separate output interface and input interface, or may be an integrated interface that integrates input and output. The output interface is used for outputting data, the input interface is used for acquiring input data, the output data is a general name output in the method embodiment, and the input data is a general name input in the method embodiment.

The network device 200 may be configured to perform each step and/or flow corresponding to the corresponding network device in the foregoing method embodiments.

Fig. 10 is a schematic structural diagram of a terminal device provided in the present application, where the terminal device 300 includes:

a memory 301 for storing program instructions, the memory 301 may be a flash (flash memory).

A processor 302, configured to call and execute the program instructions in the memory to implement the steps of the corresponding terminal device in the broadcast data transmission method of fig. 2 or fig. 3. Reference may be made in particular to the description relating to the preceding method embodiment.

An input/output interface 303 may also be included. The input/output interface 303 may include a separate output interface and input interface, or may be an integrated interface that integrates input and output. The output interface is used for outputting data, the input interface is used for acquiring input data, the output data is a general name output in the method embodiment, and the input data is a general name input in the method embodiment.

The terminal device 300 may be configured to perform each step and/or flow corresponding to the corresponding terminal device in the foregoing method embodiments.

The application also provides a readable storage medium, in which an execution instruction is stored, and when at least one processor of the network device executes the execution instruction, the network device executes the broadcast data transmission method in the above method embodiment.

The application also provides a readable storage medium, in which execution instructions are stored, and when at least one processor of the terminal device executes the execution instructions, the terminal device executes the broadcast data transmission method in the above method embodiment.

The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the network device may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the network device to implement the broadcast data transmission method in the above-described method embodiment.

The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the terminal device may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the terminal device to implement the broadcast data transmission method in the above-described method embodiment.

The application also provides a chip, wherein the chip is connected with the memory, or the chip is integrated with the memory, and when a software program stored in the memory is executed, the broadcast data transmission method in the embodiment of the method is realized.

Those of ordinary skill in the art will understand that: in the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

1. A method for broadcast data transmission, comprising:

2. The method of claim 1, wherein prior to transmitting Physical Downlink Shared Channel (PDSCH) data to the terminal device over a Broadcast Control Channel (BCCH) within a non-system message (SI) window, the method further comprises:

3. The method according to claim 2, wherein the report message further includes an encryption/decryption indication or a terminal type indication, and the encryption/decryption indication and the terminal type indication are used for indicating an encryption/decryption manner of the terminal device;

and determining the encrypted target data as the target data.

4. The method according to claim 2 or 3, wherein the report message is obtained by setting the capability indication in a functional group indicator FGI of the terminal device by the terminal device, or is obtained by adding the capability indication in radio resource control RRC extension information by the terminal device.

5. The method of claim 1, wherein prior to transmitting Physical Downlink Shared Channel (PDSCH) data to the terminal device over a Broadcast Control Channel (BCCH) within a non-system message (SI) window, the method further comprises:

and determining the encrypted target data as the target data.

6. The method of any of claims 1-3 or 5, wherein prior to sending the broadcast message to the terminal device, the method further comprises:

7. The method of claim 6, wherein adding or setting the end pipe indication in a system message SI to obtain the broadcast message comprises:

8. The method of any of claims 1-3, 5 or 7, wherein the format of the PDSCH data comprises a format of a System message (SI) or a format of other data.

9. A method for broadcast data transmission, comprising:

receiving a broadcast message sent by network equipment;

and analyzing the PDSCH data to obtain the target data.

10. The method of claim 9, further comprising:

11. The method according to claim 10, wherein the report message further includes an encryption/decryption indication or a terminal type indication, and the encryption/decryption indication and the terminal type indication are used for indicating an encryption/decryption manner of the terminal device;

the method further comprises the following steps:

and determining the decrypted target data as the target data.

12. The method of claim 10 or 11, wherein before sending the report message to the network device, the method further comprises:

13. The method of claim 9, further comprising:

and determining the decrypted target data as the target data.

14. The method according to any of claims 9-11 or 13, wherein the broadcast message is obtained by the network device adding or setting the end pipe indication in a system message SI.

15. The method according to any of claims 9-11 or 13, wherein the format of the PDSCH data comprises the format of system messages, SI, or other data.

16. A network device, characterized in that,

17. The network device of claim 16, wherein the network device further comprises:

18. The network device according to claim 17, wherein the report message further includes an encryption/decryption indication or a terminal type indication, and the encryption/decryption indication and the terminal type indication are used to indicate an encryption/decryption manner of the terminal device;

the network device further includes:

19. The network device according to claim 17 or 18, wherein the report message is obtained by setting the capability indication in a functional group indicator FGI of the terminal device by the terminal device, or is obtained by adding the capability indication in radio resource control RRC extension information by the terminal device.

20. The network device according to claim 18, wherein the processing module is further configured to encrypt the target data according to a preset encryption/decryption manner before the second sending module sends PDSCH data of a physical downlink shared channel to the terminal device in a non-system message SI window through a broadcast control channel BCCH, so as to obtain encrypted target data; and determining the encrypted target data as the target data.

21. The network device according to claim 18 or 20, wherein the processing module is further configured to add or set the end pipe indication in a system message SI before the first sending module sends a broadcast message to a terminal device, so as to obtain the broadcast message.

22. The network device of claim 21, wherein the processing module is specifically configured to add or set the end pipe indication in a system message block type 1SIB1 of a system message SI, so as to obtain the broadcast message.

23. A network device as claimed in any of claims 16-18, 20 or 22, wherein the format of the PDSCH data comprises the format of system messages, SI, or other data.

24. A terminal device, comprising:

25. The terminal device of claim 24, wherein the terminal device further comprises:

26. The terminal device according to claim 25, wherein the report message further includes an encryption/decryption indication or a terminal type indication, and the encryption/decryption indication and the terminal type indication are used to indicate an encryption/decryption manner of the terminal device;

27. The terminal device according to claim 25 or 26, wherein the processing module is further configured to, before the sending module sends the report message to the network device, set the capability indication in a functional group indicator FGI of the terminal device to obtain the report message; or, the capability indication is added to the radio resource control RRC extension message to obtain the report message.

28. The terminal device according to claim 24, wherein the processing module is further configured to decrypt the target data according to a preset encryption and decryption manner to obtain decrypted target data; and determining the decrypted target data as the target data.

29. A terminal device according to any of claims 24-26 or 28, wherein the broadcast message is obtained by the network device adding or setting the end-pipe indication in a system message SI.

30. A terminal device according to any of claims 24-26 or 28, wherein the format of the PDSCH data comprises the format of system messages, SI, or other data.

31. A network device, comprising:

a memory and a processor;

the memory is to store program instructions;

the processor is configured to invoke program instructions in the memory to perform the broadcast data transmission method of any of claims 1-8.

32. A terminal device, comprising:

a memory and a processor;

the memory is to store program instructions;

the processor is configured to invoke program instructions in the memory to perform the broadcast data transmission method of any of claims 9-15.

33. A readable storage medium having stored therein execution instructions, which when executed by at least one processor of a network device, cause the network device to perform the broadcast data transmission method of any one of claims 1-8.

34. A readable storage medium having stored therein execution instructions, which when executed by at least one processor of a terminal device, cause the terminal device to perform the broadcast data transmission method of any one of claims 9-15.