System and method for distributing data for carrier aggregation in 5G broadcast
By using two carriers with the same category for data allocation in 5G broadcasting, the problem of insufficient carrier aggregation bandwidth is solved, independent operation of carriers and high-bandwidth data transmission is realized, and the transmission of ultra-high-definition video streams is supported.
Patent Information
- Application Number
- CN202011065488.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-02-06
- Filing Date
- 2020-09-30
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2040-09-30
AI Technical Summary
In 5G broadcasting, existing carrier aggregation technology cannot effectively allocate data, resulting in insufficient bandwidth and cannot meet high bandwidth requirements, such as the transmission of ultra-high-definition video data streams.
Data allocation is performed using at least two carriers with the same category, and the broadcast transmitter is controlled through an evolutionary packet core, and the data stream is allocated to the carriers with the same category, ensuring that each carrier contains all necessary control information and realize the independent operation of the carrier. and interchange.
It extends the available bandwidth of 5G broadcast, supports the transmission of ultra-high-definition video data streams, and realizes the independent operation of carriers, suitable for scenarios without uplinks in 5G broadcasts.
Smart Images

Figure CN113300824B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a system for allocating data for carrier aggregation in 5G broadcasting. In addition, the present invention relates to a method for allocating data for carrier aggregation in 5G broadcasting. Background Art
[0002] Nowadays, radio communication is becoming more and more important in different fields of technology. Therefore, new communication standards are being studied, which should ensure appropriate communication, among other things. In mobile communication or telecommunications, bidirectional communication is required to ensure communication in both directions, i.e. uplink communication and downlink communication. Recently, the communication standard 5G has been proposed, which provides for the growing demand for mobile connectivity.
[0003] As is known, telecommunication or mobile communications use carrier aggregation to increase bandwidth and thus increase bit rate. Carrier aggregation provided in telecommunication or mobile communications includes different carriers for delivering corresponding data, wherein these carriers are also called component carriers.
[0004] In telecommunication or mobile communications, a fundamental problem is that different carriers used in carrier aggregation in telecommunication or mobile communications relate to different categories, i.e. a certain hierarchy. This means that only a single primary (component) carrier and at least one secondary (component) carrier are always provided. In order to exchange data via carrier aggregation, the primary (component) carrier must be received in any case, since only the primary (component) carrier includes the necessary control information. The corresponding bandwidth or bit rate can then be increased by receiving one or more secondary carriers. However, this concept used in telecommunication or mobile communications is not applicable to broadcasting.
[0005] Therefore, there is a need to allocate data destined for at least one data stream to improve broadcasting, and in particular to extend the available bandwidth for broadcasting. Summary of the invention
[0006] The present invention provides a system for allocating data for carrier aggregation in 5G broadcasting. The system includes: an input end for receiving at least one data stream to be transmitted, at least one evolved packet core associated with the input end, and at least one broadcast transmitter for transmitting radio frequency signals. At least one broadcast transmitter has at least one exciter. At least one broadcast transmitter uses at least two carriers of the same category. At least one evolved packet core is configured to control at least one broadcast transmitter. At least one evolved packet core is configured to: allocate data of at least one data stream to at least one broadcast transmitter based on information assigned to at least one data stream to be transmitted and / or based on information about the configuration and capacity of at least one broadcast transmitter.
[0007] In addition, the present invention provides a method for allocating data for carrier aggregation in 5G broadcast, which has the following steps:
[0008] - receiving a data stream via at least one evolved packet core,
[0009] - allocating the data streams based on information assigned to the data streams and / or based on information about the configuration and capabilities of at least one broadcast transmitter for transmitting the data streams, and
[0010] - Broadcasting a data stream via at least one broadcast transmitter using at least two carriers of the same class.
[0011] The invention is therefore based on the finding that data for 5G broadcasting can be allocated to at least two carriers of the same class. These at least two carriers are therefore equal, in particular in terms of hierarchy. This means that the individual carriers can be interchanged with each other. Each carrier thus includes all necessary information, for example control information, i.e. signaling messages. For example, all control channels are transmitted by each carrier.
[0012] In other words, all carriers used in 5G broadcasting are fully configured. Therefore, each carrier used can operate independently. This is in contrast to carrier aggregation in mobile communications or telecommunications, where only one primary carrier is provided and one or more secondary carriers cannot operate independently.
[0013] Thus, all carriers can be used as "primary" (component) carriers for all receiving devices (e.g. terminal devices). In contrast to carrier aggregation in mobile communications or telecommunications, each receiving device does not have just one "primary" carrier assigned, as each receiving device may have all carriers assigned.
[0014] Typically, each (component) carrier must be assigned to one of the following categories: primary (component) carrier and secondary (component) carrier. A primary (component) carrier is related to the primary carrier in any group. There will be a downlink primary carrier and an associated uplink primary component carrier.
[0015] Furthermore, the data assigned to the at least two carriers are separated from each other in the PHY layer (physical layer) and in the MAC layer (medium access control layer). The individual data are thus already separated in the MAC layer. This is ensured by means of at least one evolved packet core located upstream of the at least one broadcast transmitter. In practice, the at least one evolved packet core is interconnected between the input and the at least one broadcast transmitter.
[0016] In contrast, carrier aggregation in telecommunications or mobile communications stipulates that individual data are separated only in the PHY layer, and not in the MAC layer where the individual data to be transmitted are scheduled on different carriers.
[0017] Furthermore, broadcast transmitters do not provide any uplink possibilities as opposed to telecommunication or mobile communications. Hence, broadcast transmitters are used only for broadcasting (downlink).
[0018] Therefore, the entire system does not provide any uplink as it involves 5G broadcasting.
[0019] In practice, broadcast channels with a bandwidth of 6 MHz or 8 MHz can be assigned to different frequency bands used by 5G. For example, two 5G frequency bands with a bandwidth of 3 MHz can be used, resulting in 3 MHz + 3 MHz = 6 MHz. In addition, one 5G frequency band with a bandwidth of 3 MHz and another 5G frequency band with a bandwidth of 5 MHz can be used, resulting in 3 MHz + 5 MHz = 8 MHz. Different 5G frequency bands can be used through carrier aggregation, where data is pre-assigned to at least one broadcast transmitter using different carriers assigned to the 5G frequency bands or the above-mentioned broadcast channels.
[0020] Thus, at least one broadcast transmitter provided is capable of carrier aggregation, for example, using two carriers on a 5G frequency band having a bandwidth of 3 MHz and / or 5 MHz for carrier aggregation.
[0021] Typically, the system may include more than one broadcast transmitter and / or more than one exciter. More than one exciter may be assigned to one broadcast transmitter, or to multiple broadcast transmitters. Thus, the bandwidth for broadcasting data of at least one data stream may be expanded by means of additional broadcast transmitters and / or exciters, in particular for bandwidths equal to or higher than 20 MHz.
[0022] Thus, the bandwidth of the system can be expanded to enable broadcasting of ultra-high definition (UHD) data streams and / or 8K video data streams.
[0023] At least one evolved packet core may be configured to control a single frequency network including at least one broadcast transmitter using at least two carriers. Typically, a single frequency network is a broadcast network in which multiple broadcast transmitters simultaneously transmit the same signal on the same channel, in particular on the same multicast channel. The multiple broadcast transmitters are synchronized with each other to ensure that they function as a single frequency network.
[0024] In practice, this can be ensured by at least one evolved packet core.
[0025] In addition, carrier aggregation can be performed for different broadcast transmitters within a single frequency network, in particular intra-band aggregation. For this purpose, at least one evolved packet core controls different broadcast transmitters.
[0026] In the case of multiple broadcast transmitters, each broadcast transmitter may be assigned to a corresponding carrier.
[0027] Additionally, each broadcast transmitter may include two exciters.
[0028] Typically, an exciter includes an oscillator, a modulator, input processing means and optionally an audio processor.
[0029] Typically, the driver is connected to an amplifier, in particular a high-power amplifier, which the driver feeds.
[0030] When data of the data stream is allocated to at least one broadcast transmitter, the corresponding data is allocated to at least two carriers.
[0031] Typically, at least one evolved packet core communicates with an external packet data network, such as the Internet, a private corporate network, or an Internet Protocol ("IP") multimedia subsystem.
[0032] At least one evolved packet core receives data only via an input port.
[0033] Typically, 5G broadcasts may be limited to a certain group of receivers (5G multicast) and / or a certain location (5G geocast).
[0034] In practice, broadcasting is a method of transmitting data to all receivers simultaneously. In multicasting, data is transmitted simultaneously to a (preselected) group of receivers, such as a subgroup of all possible receivers. In geocasting, data is transmitted to a group of receivers in the network identified by the receivers' geographical locations.
[0035] According to one aspect, the information assigned to the data stream is related to data-related information and / or content-related information. The data-related information may correspond to bandwidth, data rate, quality level identifier (QCI) and / or maximum allowable packet error rate. The content-related information may correspond to the priority of the corresponding data stream and / or the type of data, such as a live video stream, acoustic data, image data and / or video data. In addition, the content-related information may correspond to the corresponding content of the data, such as data related to traffic warnings, lottery numbers, advertisements, stock exchanges and / or temperature. Therefore, at least one evolved packet core may take into account different information of the data assigned to the data stream so as to allocate the data of at least one data stream to at least two carriers and control at least one broadcast transmitter accordingly.
[0036] Another aspect provides that at least one evolved packet core is configured to process manual input of an operator of the system and / or execute an algorithm in assigning data of at least one data stream to at least one broadcast transmitter. The operator of the system can manually assign certain data of a data stream or more precisely the entire data of a data stream to at least one carrier, exciter and / or broadcast transmitter. This actually depends on the configuration of the system. However, the system itself is flexible in this regard, thereby enabling the operator to customize the broadcast according to his specific needs.
[0037] In addition, the operator can set content-related information used by the algorithm to allocate data, such as the priority of each data. In practice, the data is allocated in a certain way according to the priority set by the operator. For example, a live video stream of a sports event (such as a final) has the highest priority.
[0038] As mentioned above, the respective allocation can be performed by means of an algorithm executed, which takes into account certain information, in particular data-related information and / or content-related information, in order to allocate the data of the data stream based on this information. The information taken into account by the algorithm can be defined by an operator. Alternatively or additionally, this information is assigned to the corresponding data of at least one data stream to be processed.
[0039] Usually, the algorithm ensures automatic processing.
[0040] At least one evolved packet core may be configured to manage at least two carriers used by at least one broadcast transmitter. In other words, at least one evolved packet core manages at least two carriers for data to be transmitted via at least two carriers. For example, at least one evolved packet core assigns data of at least one data stream to respective carriers for 5G broadcast. The assignment may be based on data-related information and / or content-related information.
[0041] According to another aspect, at least one evolved packet core and at least one broadcast transmitter are connected to each other via a user plane via which content data is transmitted and / or via a control plane via which configuration data is transmitted. In other words, at least one evolved packet core can forward configuration data to at least one broadcast transmitter via the control plane. In addition, at least one evolved packet core can forward content data to at least one broadcast transmitter via the user plane.
[0042] Therefore, the protocol architecture for 5G broadcast based on LTE can be divided into a control plane architecture and a user plane architecture. The user plane architecture can involve unidirectional communication, that is, unidirectional communication from the evolved packet core to at least one broadcast transmitter. The control plane architecture can involve bidirectional communication between the evolved packet core and at least one broadcast transmitter.
[0043] In particular, it is ensured via the user plane that the data is distributed in a correct manner, in particular to at least two different carriers.
[0044] The control plane ensures that at least one broadcast transmitter using at least two carriers is configured, among other things, such that the data of the data streams are transmitted in an intended manner.
[0045] The user plane may be assigned to the M1 protocol, while the control plane may be assigned to the M2 protocol. These two protocols are also referred to as the M1 / SYNC protocol and the M2AP, ie, the M2 Application Protocol.
[0046] In particular, at least one evolved packet core is configured to synchronize data of at least one data flow via a user plane. The at least one evolved packet core ensures that the entire data of the at least one data flow is distributed to the at least two carriers in a correct manner. For this purpose, the data distribution is appropriately synchronized by means of the at least one evolved packet core. In addition, the radio signals containing the data can be appropriately synchronized.
[0047] Furthermore, the at least one evolved packet core may be configured to configure the at least one broadcast transmitter via the control plane for broadcasting the data stream. Thus, allocating the corresponding data to the at least one evolved packet core of the at least two carriers ensures that the at least one broadcast transmitter using the carriers is appropriately set.
[0048] Generally, it is determined where each data should be sent with the help of the control plane, and each data is transmitted to the destination specified by the control plane with the help of the user plane.
[0049] In fact, the signal path along which the data is transmitted is configured by the control plane. Then, the user plane ensures that each data is delivered to the specified destination through the configured signal path.
[0050] Another aspect provides that at least one broadcast transmitter may be configured to forward at least one name, in particular at least one name suffix, to at least one evolved packet core via a control plane. In other words, at least one broadcast transmitter forwards at least one name, in particular at least one name suffix, to at least one evolved packet core via a control plane. Thus, the evolved packet core is able to correctly address the corresponding broadcast transmitter, in particular the designated one or more exciters and / or the designated one or more carriers.
[0051] Furthermore, the at least one evolved packet core may be configured to process at least one name received from at least one broadcast transmitter via the control plane in order to assign data of at least one data stream to the at least one broadcast transmitter. In other words, the at least one evolved packet core processes at least one name received from at least one broadcast transmitter in order to assign data to the at least one broadcast transmitter by taking into account the at least one received name. Thus, the received information, in particular the at least one name (suffix), is used to correctly assign the data, for example to the assigned one or more exciters and / or the assigned one or more carriers.
[0052] For example, each name (suffix) can clearly define the corresponding transmission component used for 5G broadcasting, that is, the corresponding broadcast transmitter, its exciter, and the corresponding carrier used by the exciter.
[0053] Thus, according to the applied naming convention, the data of at least one data stream may be assigned to at least one broadcast transmitter, in particular a carrier.
[0054] According to one embodiment, at least one broadcast transmitter is a 5G broadcast transmitter based on LTE, in particular a FeMBMS transmitter. FeMBMS (Further Evolved Multimedia Broadcast Multicast Service) is a further development of the LTE broadcast mode eMBMS, which enables its full transmission capacity to be used for broadcast services.
[0055] Typically, at least one data flow may relate to at least two dedicated services, ie separate services, transmitted by means of at least two carriers.
[0056] According to an aspect, at least one broadcast transmitter forwards information about its configuration and its capacity to at least one evolved packet core via a control plane.Thereby, at least one evolved packet core is configured to take into account the respective information for allocating data of at least one data flow in an appropriate manner.
[0057] Furthermore, at least one data stream may be assigned to at least one multicast channel, in particular at least one multicast service channel, wherein at least one multicast channel is assigned to one or more carriers.
[0058] According to one embodiment, a multicast control channel, service announcements about data allocation, temporary mobile group identifiers and metadata are created for each carrier. In particular, the service announcements, temporary mobile group identifiers and metadata are transmitted by means of at least one carrier, in particular by means of a single carrier or multiple carriers.
[0059] In certain cases, data of at least one data stream is distributed via multiple carriers.The data streams are transmitted by a single multicast channel per carrier, the channel comprising a temporary mobile group identifier that is the same for all carriers.
[0060] Another aspect provides for a single data stream to be distributed over multiple carriers, wherein the data stream is transmitted via a single multicast channel, in particular a single multicast transmission channel, of each carrier. Thus, data of a single data stream that may contain more than one service (in particular two separate services) may be broadcast by more than one carrier.
[0061] In particular, the data flows are assigned to the same temporary mobile group identifier and service announcement in the multicast channel.
[0062] At least one broadcast transmitter may include two exciters.
[0063] Each exciter can be assigned to two different carriers.
[0064] At least two broadcast transmitters may be provided.
[0065] Each broadcast transmitter may include two exciters.
[0066] Each exciter can be assigned to a specific carrier.
[0067] Exciters of a single broadcast transmitter may be assigned to the same carrier.
[0068] Based on the name (suffix), the at least one evolved packet core only controls at least one broadcast transmitter, in particular one or more exciters, that should receive the data to be broadcast by the respective carrier.
[0069] Typically, the evolved packet core ensures that at least one data flow is assigned to at least one multicast channel in at least one carrier.
[0070] As described above, a single frequency network may be established with multiple broadcast transmitters.
[0071] In particular, since two exciters are provided (per broadcast transmitter), dual drive redundancy can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0072] The foregoing aspects of the claimed subject matter and many of the attendant advantages will become more apparent and better understood by reference to the following detailed description taken in conjunction with the accompanying drawings, wherein:
[0073] - Figure 1 A first embodiment of a system for allocating data for carrier aggregation in 5G broadcast according to the present invention is shown.
[0074] - Figure 2 A second embodiment of a system for allocating data for carrier aggregation in 5G broadcast according to the present invention is shown, and
[0075] - Figure 3 A flow chart illustrating a method of allocating data for carrier aggregation in 5G broadcast according to the present invention is shown. DETAILED DESCRIPTION
[0076] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various embodiments of the disclosed subject matter and is not intended to represent only embodiments, wherein like reference numerals refer to like elements. Each embodiment described in this disclosure is provided only as an example or illustration and should not be construed as being preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the claimed subject matter to the precise form disclosed.
[0077] exist Figure 1 , a system 10 for distributing data for carrier aggregation in 5G broadcast is shown, which includes a data source 12, such as an external packet data network such as the Internet, a private corporate network, or an Internet Protocol ("IP") multimedia subsystem.
[0078] The data source 12 is connected to an input 14 for receiving at least one data stream to be transmitted from the data source 12 .
[0079] The input 14 is connected to at least one evolved packet core 16 which processes, inter alia, data received from the data source 12 via the input 14 .
[0080] In the illustrated embodiment, the system 10 also includes a broadcast transmitter 18 for transmitting radio frequency signals, ie, for broadcast purposes.
[0081] In the illustrated embodiment, a single broadcast transmitter 18 includes two exciters 20, namely a first exciter 20a and a second exciter 20b.
[0082] Each exciter 20 is assigned to two carriers 22 of the same class.
[0083] Even though the carriers 22 have the same category, they are labeled 22a and 22b for the sake of distinction.
[0084] The evolved packet core 16 and the broadcast transmitter 18 are interconnected with each other by a user plane 24 via which content data is communicated and a control plane 26 via which configuration data is communicated.
[0085] also, Figure 1It is disclosed that the evolved packet core 16 can receive a single data stream indicated by “IP1” or two separate data streams indicated by “IP1, IP2.” However, the evolved packet core 16 can receive two separate services in any case, which are labeled “Service 1” and “Service 2” respectively.
[0086] These services are distributed to broadcast transmitters 18, and in particular carriers 22, in some manner.
[0087] In the illustrated embodiment, a first service labeled "Service 1" is assigned to each second carrier 22b allocated to each exciter 20, while a second service labeled "Service 2" is assigned to each first carrier 22a allocated to each exciter 20.
[0088] In order to correctly distribute the data destined for the services to the carriers 22 , the broadcast transmitter 18 provides corresponding information to the evolved packet core 16 by means of the control plane 26 , wherein the corresponding information is processed by the evolved packet core 16 .
[0089] Thus, the evolved packet core 16 distributes data based on information about the configuration and capacity of the at least one broadcast transmitter 18 .
[0090] Furthermore, the evolved packet core 16 may take into account information related to at least one data flow, for example, data related information, in particular bandwidth, data rate, quality class identifier (QCI) and / or maximum allowed packet error rate, and / or content related information, in particular priority, live video stream, acoustic data, image data and / or video data.
[0091] Therefore, the evolved packet core 16 can ensure that optimal broadcast characteristics can be achieved while taking into account information assigned to at least one data flow and information about the broadcast transmitter 18.
[0092] The respective information assigned to the at least one data flow may be set by an operator of the system 10. Alternatively or additionally, the evolved packet core 16 may execute an algorithm that determines how the respective data is distributed among the different carriers 22.
[0093] Thus, the evolved packet core 16 manages the different carriers 22 used by the broadcast transmitters 18, in particular their exciters 20. The evolved packet core 16 also ensures that data of at least one data flow is synchronized while being distributed to the different exciters 20 for transmission by the corresponding carriers 22 via the user plane 24.
[0094] In this regard, the evolved packet core 16 configures a broadcast transmitter 18, ie, an exciter 20 thereof, for broadcasting data of at least one data stream.
[0095] Previously, the evolved packet core 16 has received corresponding information from the broadcast transmitter 18, in particular from the exciter 20 thereof, which information can be used to distribute or assign data of at least one data flow in an efficient manner.
[0096] Therefore, the broadcast transmitter 18 forwards at least one name (suffix) to the at least one evolved packet core 16 via the control plane 26 , which ensures that the corresponding combination of the broadcast transmitter 18 , the exciter 20 , and the carrier 22 is identified.
[0097] This is Figure 1 Also shown is the "Channel 14" for the first (and only) broadcast transmitter 18, its first exciter 20a labeled "ExcA", and its first carrier 22a labeled "CC1". <sender1>-CC1-ExcA" is shown. In addition, the name (suffix) " <sender1>-CC2-ExcB" relates to the first (and only) broadcast transmitter 18, its second exciter 20b labeled "ExcB", and its second carrier 22b labeled "CC2".
[0098] The broadcast transmitter 18 also forwards the capacity information to the evolved packet core 16 in addition to the respective names (suffixes).
[0099] The evolved packet core 16 then processes the received at least one name (suffix) and associated information to assign data of at least one data stream to at least one broadcast transmitter 18, specifically one or more exciters 20 and one or more carriers 22 thereof.
[0100] Typically, the broadcast transmitter 18 may involve an LTE-based 5G broadcast transmitter, in particular an FeMBMS transmitter.
[0101] exist Figure 2 , a second embodiment of the system 10 is shown, which differs from the first embodiment in that two broadcast transmitters 18 , namely a first broadcast transmitter 18 a and a second broadcast transmitter 18 b , are connected to the evolved packet core 16 .
[0102] Likewise, each broadcast transmitter 18 includes a first exciter 20a and a second exciter 20b.
[0103] However, the exciters 20 of the first broadcast transmitter 18a are all assigned to the first carrier 22a, while the exciters 20 of the second broadcast transmitter 18b are all assigned to the second carrier 22b.
[0104] This is also apparent when considering the individual names (suffixes). For example, " <sender1>-CC1-ExcA" identifies the first broadcast transmitter 18a, its first exciter 20a labeled "ExcA", and the first carrier 22a labeled "CC1", while " <sender2>-CC2-ExcA" defines a second broadcast transmitter 18b, its first exciter 20a labeled "ExcA", and its second carrier 22a labeled "CC1".
[0105] In any case, if Figure 3 As indicated, the evolved packet core 16 receives one or more data flows in a first step S1. In addition, information assigned to at least one data flow may be received, which information may be set by an operator of the system 10 or may have been assigned to the data flow.
[0106] In a second step S2, the evolved packet core 16 receives information from the one or more broadcast transmitters 18 via the control plane 26. This received information relates to information about the configuration and capabilities of the one or more broadcast transmitters 18, in particular the one or more exciters 20 and / or the one or more corresponding carriers 22 used. Thus, the one or more broadcast transmitters 18 forward at least one name (suffix) which is assigned to the respective combination of the specific broadcast transmitter 18, its exciter 20 and the carrier 22.
[0107] In a third step S3, the evolved packet core 16 processes the received information in order to distribute the data to the one or more broadcast transmitters 18, in particular to the one or more exciters 20 and / or the one or more carriers 22. Thus, the data to be broadcast is forwarded to the one or more broadcast transmitters 18 via the user plane 24. When or before distributing the data, the evolved packet core 16 also forwards configuration data to the one or more broadcast transmitters 18 via the control plane 26.
[0108] In a fourth step S4, data of one or more data streams, which may be assigned to different (separate) services, are broadcast via one or more broadcast transmitters 18, wherein at least two carriers 22 of the same class are used.
[0109] Typically, a multicast control channel, service announcements regarding data allocation, temporary mobile group identifiers and / or metadata are created for each carrier 22. In practice, the service announcements, temporary mobile group identifiers and metadata are transmitted via the carrier 22.
[0110] Likewise Figure 1 and Figure 2 As shown, a single data stream may be distributed across multiple carriers 22. Since at least one data stream is assigned to at least one multicast channel, the data stream may be transmitted via a single multicast channel on each carrier 22.
Claims
1. A system for allocating data for carrier aggregation in 5G broadcast, comprising: - an input (14) configured to receive at least one data stream to be broadcast, - at least one Evolved Packet Core (16) associated with said input (14), and - at least one broadcast transmitter (18) configured to broadcast a radio frequency signal, wherein the at least one broadcast transmitter (18) has at least one exciter (20), wherein the at least one broadcast transmitter (18) uses at least two component carriers (22) of the same category such that the component carriers (22) are interchangeable with each other, wherein each of the at least two component carriers (22) includes control information, wherein the at least one evolved packet core (16) is configured to control the at least one broadcast transmitter (18), and The at least one evolved packet core (16) is configured to distribute data of the at least one data flow to the at least one broadcast transmitter (18) based on information assigned to the at least one data flow and / or based on information about the configuration and capacity of the at least one broadcast transmitter (18).
2. The system according to claim 1, wherein: The information assigned to the data stream relates to data-related information, in particular bandwidth, data rate and / or maximum allowed packet error rate, quality class identifiers, and / or to content-related information, in particular priorities, live video streams, acoustic data, image data and / or video data, for example data about traffic warnings, lottery numbers, advertisements, stock exchanges and / or temperature.
3. The system according to claim 1 or 2, wherein: The at least one evolved packet core (16) is configured to process manual input by an operator of the system (10) and / or execute an algorithm in distributing data of the at least one data stream to the at least one broadcast transmitter (18).
4. The system according to claim 1 or 2, wherein: The at least one evolved packet core (16) is configured to manage the at least two component carriers (22) used by the at least one broadcast transmitter (18).
5. The system according to claim 1 or 2, wherein: The at least one evolved packet core (16) and the at least one broadcast transmitter (18) are connected to each other via a user plane (24) via which content data is transmitted and / or a control plane (26) via which configuration data is transmitted.
6. The system according to claim 5, wherein: The at least one evolved packet core (16) is configured to synchronize data of the at least one data flow via the user plane (24), and / or wherein the at least one evolved packet core (16) is configured to configure at least one broadcast transmitter (18) for broadcasting a data flow via the control plane (26).
7. The system according to claim 5, wherein: The at least one broadcast transmitter (18) is configured to forward at least one name, in particular at least one name suffix, to the at least one evolved packet core (16) via the control plane (26), in particular wherein the at least one evolved packet core (16) is configured to process the at least one name received from the at least one broadcast transmitter (18) via the control plane (26) so as to assign data of the at least one data flow to the at least one broadcast transmitter (18).
8. The system according to claim 1 or 2, wherein: The at least one broadcast transmitter (18) is a 5G broadcast transmitter based on LTE, in particular a FeMBMS transmitter.
9. A method for allocating data for carrier aggregation in 5G broadcast, comprising the following steps: - receiving a data stream via at least one evolved packet core (16), - allocating said data stream based on information assigned to said data stream and / or based on information about the configuration and capabilities of at least one broadcast transmitter (18) to be used for transmitting said data stream, and - broadcasting the data stream via the at least one broadcast transmitter (18) using at least two component carriers (22) of the same category, such that the component carriers (22) are interchangeable with each other, wherein Each of the at least two component carriers (22) includes control information.
10. The method according to claim 9, wherein: The at least one broadcast transmitter (18) forwards information about its configuration and its capabilities to the at least one evolved packet core (16) via a control plane (26), and / or wherein the at least one evolved packet core (16) forwards configuration data to the at least one broadcast transmitter (18) via the control plane (26), and / or wherein the at least one evolved packet core (16) forwards content data to the at least one broadcast transmitter (18) via a user plane (24).
11. The method according to claim 10, wherein: The at least one broadcast transmitter (18) forwards at least one name, in particular at least one name suffix, to the at least one evolved packet core (16) via the control plane (26), and wherein the at least one evolved packet core (16) processes the at least one name received from the at least one broadcast transmitter (18) in order to assign data to the at least one broadcast transmitter (18).
12. The method according to claim 9 or 10, wherein: The at least one evolved packet core (16) manages the at least two component carriers (22) for data to be transmitted via the at least two component carriers (22).
13. The method according to claim 9 or 10, wherein: The at least one data stream is assigned to at least one multicast channel, in particular at least one multicast service channel, wherein the at least one multicast channel is assigned to one component carrier (22) or to a plurality of component carriers (22).
14. The method according to claim 9 or 10, wherein: A multicast control channel, a service announcement regarding data allocation, a temporary mobile group identifier and metadata are created for each component carrier (22), in particular wherein the service announcement, the temporary mobile group identifier and the metadata are transmitted by means of at least one component carrier (22).
15. The method according to claim 9 or 10, wherein: A single data stream is distributed over a plurality of component carriers (22), wherein the data stream is transmitted via a single multicast channel, in particular a single multicast transmission channel, per component carrier (22), in particular wherein the data stream is assigned to the same temporary mobile group identifier and service announcement in the multicast channel.
Citation Information
Patent Citations
Next Generation Broadcast System and Method
US20150085735A1
Wireless communications systems supporting carrier aggregation and selective distributed routing of secondary cell component carriers based on capacity demand
WO2019236437A1