A method for enhanced transmission of radio broadcast service messages

Abstract

The application provides a wireless broadcast service message enhanced transmission method, which comprises the following steps: S1, connecting a broadcast service server and at least one first broadcast service client to a switch network subsystem in wired communication; the switch network subsystem is in communication connection with a Wi-Fi subsystem; the Wi-Fi subsystem is in wireless communication connection with at least one second broadcast service client; S2, presetting the Wi-Fi subsystem; S3, when a broadcast service client is interested in a video, a user feeds back an IP address of the broadcast service client which needs to receive the video; S4, performing legality check on the minimum transmission rate of the at least one first broadcast service client and / or the at least one second broadcast service client; and S5, transmitting by the Wi-Fi subsystem according to the parameters preset in step S2. According to the requirements of different service clients, different processing procedures can be executed correspondingly, so that the requirements of real-time video transmission can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial wireless communication, in particular to a wireless broadcast service message enhanced transmission method. BACKGROUND

[0002] In Wi-Fi network, different network rate standards are defined by IEEE 802.11 standard group, for example, the theoretical maximum bandwidth of IEEE 802.11b standard is 11Mbit / s, the theoretical maximum bandwidth of IEEE 802.11a standard is 54Mbit / s, and the theoretical maximum rate of IEEE 802.11ax is 9608Mbit / s under MIMO 8x8 and 160MHz bandwidth. In Wi-Fi transmission, when the wireless AP sends the message by broadcast, the wireless client can receive the broadcast message by listening to the corresponding channel even if it is not connected to the AP, for example, the beacon frame sent by the wireless AP in the Wi-Fi network. Since the Wi-Fi AP cannot know the rate that can be supported by all the Wi-Fi clients listening to the broadcast message, the data is sent at the lowest rate when sending the broadcast message.

[0003] Current video monitoring is more and more applied in industrial field, and some video playing in real life is also transmitted by broadcast service. There is no big problem in wired network transmission. However, if wireless broadcast transmission is used, because of the particularity of Wi-Fi network in transmitting broadcast frame, the transmission speed will be very low, which cannot meet the real-time video transmission demand, especially the high-definition video transmission demand, resulting in poor user experience. SUMMARY

[0004] Therefore, the present application provides a wireless broadcast service message enhanced transmission method which can meet the wireless transmission demand of video transmission.

[0005] The technical scheme of the present application is realized as follows: the present application provides a wireless broadcast service message enhanced transmission method, which comprises the following steps:

[0006] S1: connecting the broadcast service server and at least one first broadcast service client to the switch network subsystem in wired communication; the switch network subsystem is also connected to the Wi-Fi subsystem in wired communication; the Wi-Fi subsystem is connected to at least one second broadcast service client in wireless communication;

[0007] S2: presetting the Wi-Fi subsystem to exclude wireless network devices that do not meet the minimum transmission rate;

[0008] S3: enabling the wireless audio and video broadcast data enhancement function of the at least one first broadcast service client or the at least one second broadcast service client; when the at least one first broadcast service client and / or the at least one second broadcast service client is interested in a video, the user will provide the IP address of the at least one first broadcast service client receiving the video to the switch network subsystem, or provide the IP address of the at least one second broadcast service client to the Wi-Fi subsystem;

[0009] S4: performing a legality check on the minimum transmission rate of the at least one first broadcast service client and / or the at least one second broadcast service client; for the at least one first broadcast service client and / or the at least one second broadcast service client meeting the requirements, allowing the at least one first broadcast service client and / or the at least one second broadcast service client to associate and connect with the switch network subsystem and / or the Wi-Fi subsystem; for the at least one first broadcast service client and / or the at least one second broadcast service client not meeting the requirements, not allowing the at least one first broadcast service client and / or the at least one second broadcast service client to associate and connect with the switch network subsystem and / or the Wi-Fi subsystem;

[0010] S5: the Wi-Fi subsystem transmits the broadcast service data that passes the verification through the Wi-Fi subsystem according to the parameters preset in step S2.

[0011] Preferably, the Wi-Fi subsystem in step S1 comprises a plurality of wireless APs; the plurality of wireless APs are in wired communication connection with the switch network subsystem and in wireless communication connection with the at least one second broadcast service client, and the plurality of wireless APs do not support a multicast communication mode.

[0012] Preferably, the presetting of the Wi-Fi subsystem in step S2 is to respectively construct a service broadcast server list and a service broadcast client list for the plurality of wireless APs; wherein the service broadcast server list is used to record and save the IP address of the broadcast service server and the destination broadcast address port of the pushed video; and the service broadcast client list is used to record and save the IP address of the at least one first broadcast service client in wired communication connection with the switch network subsystem or the IP address of the at least one second broadcast service client in wireless communication with the plurality of wireless APs.

[0013] Further preferably, when the IP address of the broadcast service server and the destination broadcast address port of the pushed video are not provided in the presetting of the Wi-Fi subsystem in step S2, the minimum transmission rate of the plurality of wireless APs must be provided.

[0014] Further preferably, the legality check of the minimum transmission rate of the at least one first broadcast service client or the at least one second broadcast service client in step S4 is that when the switch network subsystem receives the interest video demand of the at least one first broadcast service client or the at least one second broadcast service client, the broadcast service data sent by the broadcast service server to the switch network subsystem is sent to the at least one first broadcast service client, or the broadcast service data sent by the broadcast service server to the switch network subsystem is further sent to the Wi-Fi subsystem, and after the Wi-Fi subsystem receives the broadcast service data, the broadcast service data is unpacked and analyzed to obtain the IP address of the broadcast service server, the destination broadcast address port of the pushed video and the DSCP field in the IP header. Then, it is firstly judged whether the DSCP field in the IP header is legal, and after confirming that the DSCP field is legal, it is further judged whether the IP address of the broadcast service server and the destination broadcast address port of the pushed video in the broadcast service data are located in the service broadcast server list.

[0015] Preferably, the judgment of whether the DSCP field in the IP header is legal is that a plurality of wireless APs of the Wi-Fi subsystem confirm whether the DSCP field in the IP header belongs to one of (18, 20, 22, 26, 28, 30, 32, 40). If the DSCP field in the IP header belongs to one of the above bracket range, it is determined that the DSCP field in the IP header is legal. If the DSCP field in the IP header does not belong to one of the above bracket range, it is determined that the DSCP field in the IP header is illegal. In order to avoid wasting Wi-Fi bandwidth, the broadcast service data containing the IP header is directly discarded.

[0016] Preferably, the judgment of whether the IP address of the broadcast service server and the destination broadcast address port of the pushed video in the broadcast service data are located in the service broadcast server list is that when the service broadcast server list is not empty, and the IP address of the broadcast service server and the destination broadcast address port of the pushed video in the broadcast service data are completely compared and corresponding items are found in the service broadcast server list, it is queried whether the corresponding at least one second broadcast service client is connected with the wireless AP. If the connection is established, the wireless AP encapsulates the broadcast service data and sends it to the at least one second broadcast service client in the form of unicast. After the current broadcast service data is processed, the next broadcast service data sent by the broadcast service server is processed. If the at least one second broadcast service client is not connected with the wireless AP, the wireless AP does not forward the broadcast service data.

[0017] When the service broadcast server list is not empty, and the IP address of the broadcast service server in the broadcast service data and the destination broadcast address port of the pushed video are not in the service broadcast server list, the corresponding broadcast service data is discarded;

[0018] If the service broadcast server list is empty, and the minimum transmission rate of the plurality of wireless APs is set, the broadcast service data is transmitted in a broadcast manner.

[0019] Preferably, the plurality of wireless APs and the at least one second broadcast service client should meet the minimum transmission rate requirement, and the transmission rates of the plurality of wireless APs and the at least one second broadcast service client are matched.

[0020] Further preferably, the minimum transmission rate is one of 6000kbps, 7300kbps, 12000kbps, 14600kbps, 21900kbps, 24000kbps, 29300kbps, 43900kbps, 58500kbps, 65800kbps or 73100kbps.

[0021] The wireless broadcast service message enhanced transmission method provided by the application has the following beneficial effects compared with the prior art:

[0022] (1) The scheme overcomes the problem that the current broadcast transmission video data content cannot meet the high real-time requirement, and improves the broadcast speed and user experience by excluding old and unsuitable wireless network equipment that does not meet the minimum transmission rate;

[0023] (2) By verifying the field content of the IP packet header of the broadcast service data, the type of broadcast data is limited, and data that does not meet the type requirement is directly discarded, which can reduce the transmission burden of the Wi-Fi subsystem, save expenses and reduce delay. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0025] Figure 1 The network structure diagram of the wireless broadcast service message enhanced transmission method of the application;

[0026] Figure 2 The step flow chart of the wireless broadcast service message enhanced transmission method of the application;

[0027] Figure 3 It is a structure diagram of an IP packet header of a wireless broadcast service message enhanced transmission method of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] As shown in Figure 1 In combination Figure 2 The present application provides a wireless broadcast service message enhanced transmission method, which comprises the following steps:

[0030] S1: connecting the broadcast service server 1 and at least one first broadcast service client 2 to the switch network subsystem 3 in wired communication; the switch network subsystem 3 is also connected to the Wi-Fi subsystem 4 in wired communication; the Wi-Fi subsystem 4 is connected to at least one second broadcast service client 5 in wireless communication. As shown in Figure 1 The at least one first broadcast service client 2, the broadcast service server 1 and the switch network subsystem 3 together constitute a wired transmission part, while the Wi-Fi subsystem 4 and the at least one second broadcast service client 5 constitute a wireless transmission part, and the dotted arrow indicates the flow direction of the broadcast service data sent by the broadcast service server 1. The at least one first broadcast service client 2 communicates with the broadcast service server 1 through the switch network subsystem 3, without the need to pass through the Wi-Fi subsystem 4.

[0031] It should be noted that whether the at least one first broadcast service client 2 is set in the present scheme or not, its use has no influence on the wireless communication of the at least one second broadcast service client 5. The present scheme mainly aims at the case of one or more second broadcast service clients 5 connected in wireless communication. Removing the at least one first broadcast service client 2 in Figure 1 The present scheme can also be normally used, because the present scheme mainly aims at the process of wireless transmission.

[0032] The Wi-Fi subsystem 4 of the present scheme comprises a plurality of wireless APs 40; the plurality of wireless APs 40 are connected to the switch network subsystem 3 in wired communication and connected to the at least one second broadcast service client 5 in corresponding wireless communication, and the plurality of wireless APs do not support multicast communication mode.

[0033] The IP transmission mode mainly has three kinds of unicast, multicast and broadcast. The unicast is that the information source sends a separate message for each second broadcast service client 5 needing information. In the unicast mode, the amount of information transmitted in the network is proportional to the number of second broadcast service clients 5 needing the information, which causes great pressure on the network bandwidth. The broadcast is that the information source sends information to all second broadcast service clients 5, regardless of whether they really need it. This not only wastes bandwidth, but also is not safe and is not conducive to data interaction with specific objects. The multicast is that the IP message is sent from a source and forwarded to a group of specific second broadcast service clients 5, which can reduce network load. The present scheme assumes that some wireless APs do not support multicast communication mode, which can expand the scope of application of the present scheme. Correspondingly, the present scheme needs to increase the corresponding verification of the security and legality of the data transmission process.

[0034] S2: presetting the Wi-Fi subsystem 4, and eliminating wireless network devices that do not meet the minimum transmission rate.

[0035] The presetting of the Wi-Fi subsystem 4 mentioned here is to construct a service broadcast server list and a service broadcast client list for each wireless AP. The service broadcast server list is used to record and save the IP address of the broadcast service server 1 and the destination broadcast address port of the pushed video. The service broadcast client list is used to record and save the IP address of at least one first broadcast service client 2 connected to the switch network subsystem 3 in wired communication, or the IP address of at least one second broadcast service client 5 in wireless communication with the wireless AP. Since multicast mode is not supported, each wireless AP can only use broadcast or unicast mode. In order to reduce the network burden, the IP address of at least one second broadcast service client 5 corresponding to the source data needing to be received by each wireless AP needs to be informed, or the IP address of at least one first broadcast service client 2 connected to the switch network subsystem 3 in a wired manner. The service broadcast server list record is the IP address of the broadcast service server 1 and the destination broadcast address port of the pushed video, i.e. the source address and the corresponding port of the switch network subsystem 3 connected to the broadcast service server 1 in a wired manner. By pre-establishing the service broadcast server list and the service broadcast client list, the object and time of retrieval can be shortened.

[0036] If the IP address of the broadcast service server 1 and the destination broadcast address port of the pushed video are not provided in advance, the minimum transmission rate of several wireless APs must be provided. The minimum transmission rate of the wireless AP is provided as a minimum requirement for eliminating wireless APs that do not meet the video transmission rate requirement. Of course, the transmission rate of the second broadcast service client 5 needs to match the wireless AP, and the second broadcast service client 5 that does not meet the video transmission rate requirement also needs to be eliminated, thereby narrowing the range of the second broadcast service client 5 for establishing the information source.

[0037] In the present scheme, the minimum transmission rate of the wireless AP, the second broadcast service client 5, or the first broadcast service client 2 is one of 6000 kbps, 7300 kbps, 12000 kbps, 14600 kbps, 21900 kbps, 24000 kbps, 29300 kbps, 43900 kbps, 58500 kbps, 65800 kbps, or 73100 kbps.

[0038] S3: Turn on the wireless audio and video broadcast data enhancement function of at least one first broadcast service client 2 or at least one second broadcast service client 5; when at least one first broadcast service client 2 and / or at least one second broadcast service client 5 is interested in the video, the user will provide the IP address of at least one first broadcast service client 2 that needs to receive the video to the switch network subsystem 3, and the process of wired transmission is constructed, the transmission rate of wired transmission is within a limited length range, and the reliability of video transmission is higher; or the IP address of at least one second broadcast service client 5 is provided to the Wi-Fi subsystem 4, and the communication of the broadcast service server 1-switch network subsystem 3-wireless AP-second broadcast service client 5 is attempted.

[0039] S4: Legally check the minimum transmission rate of at least one first broadcast service client 2 and / or at least one second broadcast service client 5; for at least one first broadcast service client 2 and / or at least one second broadcast service client 5 that meets the requirement, allow it to associate and connect with the switch network subsystem 3 and / or the Wi-Fi subsystem 4; for at least one first broadcast service client 2 and / or at least one second broadcast service client 5 that does not meet the requirement, do not allow it to associate and connect with the switch network subsystem 3 and / or the Wi-Fi subsystem 4. If the first broadcast service client 2 or at least one second broadcast service client 5 supports the corresponding transmission service, the content of the service broadcast server list needs to be queried and it is confirmed whether a reliable connection is established, and then reliable unicast or broadcast transmission can be performed.

[0040] The step of checking the legality of the minimum transmission rate of at least one first broadcast service client 2 or at least one second broadcast service client 5 is divided into two cases as follows: 1) When the switch network subsystem 3 receives the interest video demand of the broadcast service server 1 in response to at least one first broadcast service client 2, the broadcast service data sent by the broadcast service server 1 to the switch network subsystem 3 is sent to at least one first broadcast service client 2.

[0041] 2) When the switch network subsystem 3 receives the interest video demand of the broadcast service server 1 in response to at least one second broadcast service client 5, the broadcast service data sent by the broadcast service server 1 to the switch network subsystem 3 is further sent to the Wi-Fi subsystem 4. After the Wi-Fi subsystem 4 receives the broadcast service data, it analyzes the broadcast service data, obtains the IP address of the broadcast service server 1, the destination broadcast address port of the pushed video, and the DSCP field in the IP packet header, and then judges whether the DSCP field in the IP packet header is legal. After confirming that the DSCP field is legal, it is further judged whether the IP address of the broadcast service server 1 and the destination broadcast address port of the pushed video in the broadcast service data are located in the service broadcast server list. As shown in Figure 3 The structure of the IP packet header is shown in the figure. There are three ways to carry QoS priority labels in IPV4 messages, which are CoS field-based priority, IP layer-based IP priority field ToS priority, and IP layer-based DSCP field priority. The priority value of the DSCP field has 64, and the priority of 0 is the lowest, and the priority of 63 is the highest. The DSCP field related to video transmission is shown in the following table.

[0042] DSCP DSCP binary value DSCP binary value Application AF2 010 010 18(0x12) IPTV VOD AF2 010 100 20(0x14) IPTV VOD AF2 010 110 22(0x16) IPTV VOD AF3 011 010 26 (0x1A) IPTV Broadcast AF3 011 100 28 (0x1C) IPTV Broadcast AF3 011 110 30 (0x1E) IPTV Broadcast CS4 100 000 32(0x20) Video conferencing and video streaming CS5 101 000 40(0x28) Voice data

[0043] The process of judging whether the DSCP field in the IP packet header is legal is that the wireless AP of the Wi-Fi subsystem 4 confirms whether the DSCP field in the IP packet header belongs to one of the DSCP binary values 18, 20, 22, 26, 28, 30, 32, 40 in the table. If the DSCP field in the IP packet header belongs to one of the above DSCP binary values, it is determined that the DSCP field in the IP packet header is legal; if the DSCP field in the IP packet header does not belong to one of the above bracketed ranges, it is determined that the DSCP field in the IP packet header is illegal. In order to avoid wasting Wi-Fi bandwidth, the broadcast service data containing the IP packet header is directly discarded, such as one or more continuously sent broadcast service frames.

[0044] After confirming that the DSCP field is legal, the IP address of the broadcast service server 1 in the broadcast service data and the destination broadcast address port of the pushed video are determined whether they are in the service broadcast server list. When the service broadcast server list is not empty, and the IP address of the broadcast service server 1 in the broadcast service data and the destination broadcast address port of the pushed video are both in the service broadcast server list and are found to be corresponding items, it is determined whether the at least one second broadcast service client 5 is connected to the wireless AP. If the connection is established, the broadcast service data is encapsulated by the wireless AP and sent to the at least one second broadcast service client 5 in a unicast manner. After the current broadcast service data is processed, the next broadcast service data sent by the broadcast service server 1 is processed. If the at least one second broadcast service client 5 is not connected to the wireless AP, the wireless AP does not forward the broadcast service data.

[0045] When the service broadcast server list is not empty, and the IP address of the broadcast service server 1 in the broadcast service data and the destination broadcast address port of the pushed video are both not in the service broadcast server list, the corresponding broadcast service data is discarded.

[0046] If the service broadcast server list is empty, and the minimum transmission rate of a plurality of wireless APs is set, the broadcast service data is transmitted to each second broadcast service client 5 in a broadcast manner. When the service broadcast server list is empty, although the broadcast can be propagated, the target second broadcast service client 5 cannot be identified, and the broadcast service data can only be sent to each second broadcast service client 5 in a broadcast manner.

[0047] The process is to confirm whether the 6-bit DSCP field is filled with reliable content when the broadcast service server 1 responds to the interest video demand of the at least one second broadcast service client 5, and the content of the 6-bit DSCP field must be one of the preset (18, 20, 22, 26, 28, 30, 32, 40). In order to ensure the transmission rate of the video, the Wi-Fi subsystem 4 and the wireless AP can directly discard the broadcast service data that does not fill the 6-bit DSCP field or the filled 6-bit DSCP field content does not meet the requirements.

[0048] The establishment of the service broadcast server list and the service broadcast client list for several wireless APs in the preset process is to obtain the willingness or interest of receiving the broadcast service data sent by the broadcast service server 1. If the IP address of the broadcast service server 1, the destination broadcast address port of the push video, the IP address of the at least one first broadcast service client 2 and the IP address of the at least one second broadcast service client 5 are not informed in advance in the preset process, the first broadcast service client 2 and the second broadcast service client 5 without the informed IP address are considered to be not interested in the video, and the wireless AP will not be responsible for transmitting the video data to the terminal without the informed IP address, although the video is sent in the broadcast mode. In this way, a large amount of bandwidth resources can be saved, and the efficiency and fluency of video transmission can be improved.

[0049] S5: The Wi-Fi subsystem 4 transmits the verified broadcast service data through the Wi-Fi subsystem 4 according to the parameters preset in step S2.

[0050] After the transmission of one frame of broadcast service frame is completed, the process returns to step S3, and the next frame of broadcast service frame is transmitted according to the first broadcast service client 2 and / or the at least one second broadcast service client 5, until the transmission is completed.

[0051] In the scheme, the switch network subsystem 3 is independent of the Wi-Fi subsystem 4. In another embodiment, the switch network subsystem 3 can be integrated into the Wi-Fi subsystem 4, and is used for wired communication connection with the wireless AP 40 and the broadcast service server 1. The system structure of the scheme is more compact.

[0052] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for enhancing the transmission of wireless broadcast service messages, characterized in that, Includes the following steps: S1: Connect the broadcast service server (1) and at least one first broadcast service client (2) to the switch network subsystem (3) via wired communication; the switch network subsystem (3) is also connected to the Wi-Fi subsystem (4) via wired communication; the Wi-Fi subsystem (4) is connected to at least one second broadcast service client (5) via wireless communication. S2: Preset the Wi-Fi subsystem (4) to eliminate wireless network devices that do not meet the minimum transmission rate; S3: Enable wireless audio and video broadcast data enhancement function for at least one first broadcast service client (2) and at least one second broadcast service client (5); when at least one first broadcast service client (2) and at least one second broadcast service client (5) are interested in video, the user provides the IP address of at least one first broadcast service client (2) that needs to receive the video to the switch network subsystem (3) and provides the IP address of at least one second broadcast service client (5) to the Wi-Fi subsystem (4); S4: Perform a validity check on the minimum transmission rate of at least one first broadcast service client (2) and at least one second broadcast service client (5); allow at least one first broadcast service client (2) and at least one second broadcast service client (5) that meet the requirements to associate and connect with the switch network subsystem (3) and the Wi-Fi subsystem (4); and disallow at least one first broadcast service client (2) and at least one second broadcast service client (5) that do not meet the requirements to associate and connect with the switch network subsystem (3) and the Wi-Fi subsystem (4). S5: The Wi-Fi subsystem (4) transmits the verified broadcast service data through the Wi-Fi subsystem (4) according to the parameters preset in step S2.

2. The wireless broadcast service message enhancement transmission method according to claim 1, characterized in that, The Wi-Fi subsystem (4) in step S1 includes several wireless APs; the several wireless APs are wired to the switch network subsystem (3) and wirelessly connected to at least one second broadcast service client (5); the several wireless APs do not support multicast communication.

3. The wireless broadcast service message enhancement transmission method according to claim 2, characterized in that, The preset of the Wi-Fi subsystem (4) in step S2 is to build a service broadcast server list and a service broadcast client list for several wireless APs respectively; wherein, the service broadcast server list is used to record and save the IP address of the broadcast service server (1) and the destination broadcast address port for pushing video; the service broadcast client list is used to record and save the IP address of at least one first broadcast service client (2) that is wired to the switch network subsystem (3), or the IP address of at least one second broadcast service client (5) that is wirelessly connected to several wireless APs.

4. The wireless broadcast service message enhancement transmission method according to claim 3, characterized in that, When setting up the Wi-Fi subsystem (4) in step S2, if the IP address of the broadcast service server (1) and the destination broadcast address port for pushing video are not provided, then the minimum transmission rate of several wireless APs must be provided.

5. The wireless broadcast service message enhancement transmission method according to claim 4, characterized in that, The legality check of the minimum transmission rate of at least one first broadcast service client (2) or at least one second broadcast service client (5) in step S4 is as follows: when the switch network subsystem (3) receives the broadcast service server (1) responding to the interest video request of at least one first broadcast service client (2) or at least one second broadcast service client (5), the broadcast service data sent by the broadcast service server (1) to the switch network subsystem (3) is sent to at least one first broadcast service client (2), or the broadcast service data sent by the broadcast service server (1) to the switch network subsystem (3) is further sent to the Wi-Fi subsystem (4). After receiving the broadcast service data, the Wi-Fi subsystem (4) performs packet analysis to obtain the IP address of the broadcast service server (1), the destination broadcast address port for pushing video, and the DSCP field in the IP packet header. Then, it first determines whether the DSCP field in the IP packet header is legal. After confirming that the DSCP field is legal, it then determines whether the IP address of the broadcast service server (1) and the destination broadcast address port for pushing video are in the service broadcast server list.

6. The wireless broadcast service message enhancement transmission method according to claim 5, characterized in that, The determination of whether the DSCP field in the IP header is valid is made by several wireless APs of the Wi-Fi subsystem (4) confirming whether the DSCP field in the IP header belongs to one of (18, 20, 22, 26, 28, 30, 32, 40). If the DSCP field in the IP header belongs to one of the above brackets, the DSCP field in the IP header is considered valid; if the DSCP field in the IP header does not belong to one of the above brackets, the DSCP field in the IP header is considered invalid. In order to avoid wasting Wi-Fi bandwidth, the broadcast service data containing the IP header is directly discarded.

7. The wireless broadcast service message enhancement transmission method according to claim 5, characterized in that, The determination of whether the IP address of the broadcast service server (1) in the broadcast service data and the destination broadcast address port of the pushed video are in the service broadcast server list is as follows: when the service broadcast server list is not empty, and the IP address of the broadcast service server (1) in the broadcast service data and the destination broadcast address port of the pushed video are both fully compared in the service broadcast server list and a corresponding item is found, then it is checked whether at least one second broadcast service client (5) has established a connection with the wireless AP. If a connection has been established, the wireless AP encapsulates the broadcast service data and sends it to at least one second broadcast service client (5) in a unicast manner. After the current broadcast service data is processed, the next broadcast service data sent by the broadcast service server (1) is processed. If at least one second broadcast service client (5) has not established a connection with the wireless AP, the wireless AP does not forward the broadcast service data. When the business broadcast server list is not empty, and the IP address of the broadcast business server (1) in the broadcast business data and the destination broadcast address port of the pushed video are not in the business broadcast server list, the corresponding broadcast business data is discarded; If the service broadcast server list is empty and a minimum transmission rate is set for several wireless APs, the broadcast service data will be transmitted in a broadcast manner.

8. The wireless broadcast service message enhancement transmission method according to claim 4, characterized in that, Several wireless APs and at least one second broadcast service client (5) should all meet the minimum transmission rate requirement, and the transmission rates of several wireless APs and at least one second broadcast service client (5) should be matched.

9. The wireless broadcast service message enhancement transmission method according to claim 8, characterized in that, The minimum transmission rate is one of 6000kbps, 7300kbps, 12000kbps, 14600kbps, 21900kbps, 24000kbps, 29300kbps, 43900kbps, 58500kbps, 65800kbps or 73100kbps.

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