Method for initiating a transmission in a wireless communication network using a selected modulation and coding scheme

Abstract

Method for initiating a transmission in a wireless communication network (10) using a selected modulation and coding scheme (MCS), comprising: - Receiving, by a first radio node (12) of the communication network (10), MCS information from a second radio node (14) of the communication network (10), wherein the received MCS information indicates that for a transmission an MCS from at least two predetermined MCSs can be selected by the first radio node (12); - Selecting, by the first radio node (12), one MCS from the at least two predetermined MCSs based on the received MCS information; and - Initiate, through the first radio node (12), a transmission using the selected MCS.

Description

[0001] The invention relates to a method for initiating a transmission in a wireless communication network using a selected modulation and coding scheme (MCS), and to a corresponding method for transmitting MCS information to a radio node of a wireless communication network. The invention further relates to a first radio node, a second radio node, a computer program, and a non-volatile, computer-readable medium. It also relates to a control information message and a data carrier signal. background

[0002] The 3GPP (3rd Generation Partnership Project) uses the MCS index to determine the specific modulation and coding scheme to be used for data transmission in wireless communication systems. The MCS index plays a crucial role in optimizing the efficiency and reliability of data transmission.

[0003] The MCS index is used to indicate the appropriate modulation scheme, which determines how the data is encoded and modulated onto the radio waves. Different modulation schemes exhibit varying degrees of complexity, data rate, and robustness against noise and interference.

[0004] Furthermore, the MCS index also determines the encoding scheme, in which error correction codes are added to the data before transmission. These codes enable the detection and correction of errors that may occur during transmission, thus improving the overall reliability of the communication link.

[0005] The base station (gNB) typically selects the MCS index based on channel conditions, including factors such as signal strength, signal-to-noise ratio, and interference level. By adapting the modulation and coding scheme to the channel conditions, the MCS index enables efficient use of available radio resources and maximizes data throughput while maintaining an acceptable level of reliability.

[0006] Typically, the MCS index is transmitted via control channels or signaling messages exchanged between the base station and the user equipment (UE). A common method for signaling the MCS index is via the physical downlink control channel (PDCCH). The PDCCH carries control information, including the MCS index, to inform the UE which MCS to use for transmissions. The MCS index is typically included in the (downlink) control information as part of the resource block (RB) allocation.

[0007] Another method for signaling the MCS index uses higher-layer signaling messages. These messages are exchanged between the base station and the UE via dedicated control channels, such as radio resource control (RRC) signaling.

[0008] Integrated communication and acquisition refers to the seamless integration of wireless communication and acquisition capabilities within a network. This includes the ability of a wireless device or system to perform both communication tasks, such as sending and receiving data, and acquisition tasks, such as collecting and analyzing environmental information. Depending on the specific task, different resource allocations, particularly different MCS (Multimedia Communication Systems), are required. Disclosure of the invention

[0009] According to a first aspect, a method for initiating a transmission in a wireless communication network using a selected modulation and coding scheme is provided.

[0010] The procedure according to the first aspect includes: - Receiving, by a first radio node of the communication network, MCS information from a second radio node of the communication network, wherein the received MCS information indicates that for a transmission an MCS from at least two predetermined MCSs can be selected by the first radio node; - Selecting, by the first radio node, one MCS from at least two predetermined MCSs based on the received MCS information; and - Initiate, through the first radio node, a transmission using the selected MCS.

[0011] The method according to the first aspect can be understood as a method for wired communication, in particular for operating the first radio node, preferably a user device, of the wireless communication network.

[0012] According to a second aspect, a method for transmitting MCS information to a radio node of a wireless communication network is provided.

[0013] The procedure according to the second aspect includes: - Transmission, through a second radio node of the communication network, of MCS information to a first radio node of the communication network, wherein the MCS information indicates that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0014] The procedure according to the second aspect can be understood as a procedure for wireless communication, in particular for the operation of the second radio node of the wireless communication network.

[0015] According to a third aspect, a first radio node, preferably a user device, of a wireless communication network is provided. The first radio node element comprises: - a radio modem, - a non-volatile, computer-readable medium that includes machine-readable instructions, and - a processor configured to load and execute the machine-readable instructions to cause the first radio node to execute the method according to the first aspect or its embodiments.

[0016] According to a fourth aspect, a second radio node of a wireless communication network is provided. The second radio node includes: - a radio modem, - a non-volatile, computer-readable medium that includes machine-readable instructions, and - a processor configured to load and execute the machine-readable instructions to cause the second radio node to execute the method according to the second aspect or its embodiments.

[0017] According to a fifth aspect, a computer program with machine-readable instructions is provided to initiate - of the first radio node according to the third aspect, to execute the method according to the first aspect and / or its embodiments, and / or - of the second radio node according to the fourth aspect, to execute the method according to the second aspect and / or its embodiments.

[0018] According to a sixth aspect, a non-volatile, computer-readable medium is provided on which the computer program is stored according to the fifth aspect.

[0019] According to a seventh aspect, a control information message is provided, preferably transmitted via a physical control channel of a wireless communication network, comprising at least a first field and a second field, wherein - the first field includes an allocation of radio resources for a transmission from a radio node of the communication network, and - the second field contains MCS information indicating that, for a transmission by the radio node using the allocated radio resources, an MCS can be selected by the radio node from at least two predetermined MCSs.

[0020] The tax information message can be embodied in a data structure that includes at least the first and second fields.

[0021] According to an eighth aspect, a data carrier signal is provided that carries the computer program according to the sixth aspect or the control information message according to the seventh aspect.

[0022] The wireless communication network can be configured as a cellular network, preferably according to 3GPP specifications, or as a wireless local area network (LAN), preferably according to IEEE specifications. The wireless communication network comprises at least the first radio node and the second radio node. The first radio node can be a user device, such as a vehicle connectivity unit, a smartphone, a wearable device, or any other IoT device. The first radio node can also be a radar unit capable of both wireless communication and radar sensing, in particular combined or integrated communication and sensing. The second radio node can be a base station. According to an alternative embodiment, the first radio node can also be a base station. In this case, the second radio node can be configured as a network element of a core network.

[0023] The MCS information indicates that an MCS can be selected by the first radio node. In other words, the MCS information indicates the availability of at least two MCS options for the first radio node, without specifying which of the two MCS options should be used for a transmission.

[0024] The MCS information can be provided as part of, or contained within, control information, preferably in the form of downlink control information (DCI). This downlink control information can be transmitted from the second radio node to the first radio node via a physical downlink control channel (PDCCH). Additionally, the control information can include an allocation of radio resources, preferably for an uplink transmission. The MCS is then selected to initiate a transmission using the allocated or provided radio resources.

[0025] The MCS is selected from at least two predetermined MCSs, preferably from a set of predetermined MCSs that includes or consists of the at least two predetermined MCSs. In other words, the at least two predetermined MCSs constitute a set of MCS options, for example, a set of orthogonal frequency-division multiplexing (OFDM) structures, that are predefined and available for selection by the first radio node. These predetermined MCSs preferably differ in the ratio of radio resources allocated for communication to radio resources allocated for detection, in particular radar detection.

[0026] Additionally, they can differ in terms of modulation schemes, coding techniques, data rates, and error correction characteristics. The various predefined MCSs can be determined based on the capabilities and requirements of the wireless communication network. They provide the first radio node with a selection of options to adapt to specific transmission requirements, including both communication-related and acquisition-related aspects. MCS selection can be understood as choosing a specific MCS from at least two predefined MCSs based on the received MCS information.

[0027] Initiating a transmission can be understood as any action performed by the first radio node to start or begin a transmission using the selected MCS. This can include performing (radar) detection, sending communication data, transmitting control signals, or any other form of wireless communication within the network using the chosen MCS. In other words, the initiated transmission is modulated and encoded according to the selected MCS. The initiation process may include configuring the necessary parameters for the selected MCS.

[0028] The proposed solution addresses the challenge of efficiently allocating resources between the functionalities of (radar) detection and (wireless) communication. It enables balanced resource allocation within a single device, taking into account the specific task at hand. By allowing a user device to autonomously select an appropriate MCS based on the priority assigned to either detection or communication for the upcoming transmission, the inherent rigidity of the MCS index, as defined in 3GPP TS 38.214, is effectively overcome. This flexibility consequently significantly improves the performance of integrated detection and communication.

[0029] According to one embodiment of the first aspect - the first radio node is trained to perform a survey of the first radio node's environment using radio resources of the communication network, and - the at least two predetermined MCSs differ by the ratio of radio resources allocated for communication to radio resources allocated for carrying out the data collection.

[0030] The acquisition process preferably comprises transmitting a radar waveform using the radio resources of the communication network. Preferably, the acquisition process further comprises receiving a reflection of the radar waveform from one or more objects or radar targets in the vicinity of the first radio node. The objects can be vehicles, unprotected road users such as pedestrians, infrastructure elements, buildings, etc.

[0031] For a first predetermined MCS, the ratio of radio resources can be 1, meaning 100% of the radio resources are allocated to communication (the "communication-intensive scheme"). For a second predetermined MCS, the ratio of radio resources can be less than 1 and greater than 0.5, for example, 0.85, meaning 85% of the radio resources are allocated to communication and 15% to detection (the "default scheme"). For a third predetermined MCS, the ratio of radio resources can be 0.5, meaning 50% of the radio resources are allocated to communication and 50% to detection (the "detection-intensive scheme"). For a fourth predetermined MCS, the ratio of radio resources can be less than 0.5 and greater than 0, for example, 0.25, meaning 25% of the radio resources are allocated to communication and 75% to detection. For a fifth predetermined MCS, the ratio of radio resources can be zero.100% of radio resources are allocated for data collection.

[0032] By flexibly allocating different ratios of radio resources for communication and data acquisition, the method enables efficient use of network resources. This ensures that the wireless communication network can effectively perform both communication and data acquisition tasks without compromising performance.

[0033] According to one embodiment of the first aspect, the transmission is initiated by the first radio node to perform (radar) sensing of its surroundings using radio resources from the communication network to generate sensing data. Depending on the selected MCS, the allocated radio resources can be used partially or completely for radar sensing. This allows the first radio node to selectively initiate a transmission for environmental sensing. Consequently, sensing data is generated that can be used for various purposes, such as environmental monitoring.

[0034] According to another embodiment of the first aspect, the method further comprises: - Initiate, through the first radio node, an additional transmission to transmit the generated acquisition data.

[0035] For additional transmission, radio resources allocated with the control information, which includes the MCS information, can be used. Alternatively, additional radio resources can be requested from the first radio node to the second radio node, either with or without MCS information, allowing the first radio node to flexibly select the MCS. This enables efficient transmission of the generated acquisition data to the intended destination, preferably the network or another radio node, for processing, analysis, or storage.

[0036] According to an alternative embodiment, the acquisition data generated by the first radio node is already available when the MCS information is received. In other words, performing a (radar) acquisition is not necessary. In this case, the transmission to transfer the already available acquisition data is initiated using the selected MCS. Accordingly, the first radio node selects an MCS whose radio resources are fully allocated for communication.

[0037] According to one embodiment of the first aspect, the MCS is selected based on whether the radio resources are primarily used for data acquisition or communication. More precisely, the MCS is selected based on a specific task or goal that the first radio node is to achieve at a particular time. For the task of data acquisition, an MCS can be selected that includes at least 50% of the radio resources allocated for data acquisition, e.g., 75%, 90%, or even 100%. For the task of communication, particularly for transmitting already available data acquisition, an MCS can be selected that includes at least 50% of the radio resources allocated for communication, e.g., 75%, 90%, or even 100%. This enables optimized MCS selection, ensuring that the selected MCS is best suited to the respective task, whether data acquisition or communication.

[0038] According to one embodiment of the first aspect, the method further comprises: - Receiving, by the first radio node, additional acquisition data from a sensor that is connectable to or connected to the first radio node, initiating the transmission and / or an additional transmission to transmit the received additional acquisition data.

[0039] The sensor can be selected from a group that includes radar, camera, lidar, and ultrasonic sensors. Accordingly, the additional acquisition data can be radar data, image data, point clouds, or ultrasonic data. The sensor and the first radio node can be part of the same device, e.g., the same vehicle. The acquisition data can be transmitted from the sensor to the first radio node via a wired or wireless connection. Preferably, the additional transmission is also modulated and encoded according to the selected MCS.

[0040] Before receiving further acquisition data, the first radio node can request the generation and / or transmission of this additional data. For this purpose, the first radio node can transmit a request to the sensor. This request can be made in response to, or triggered by, the receipt of MCS information and / or a request from the second radio node to provide acquisition data to the sensor.

[0041] By initiating transmissions to transfer the received additional acquisition data using the selected MCS, the method enables efficient integration of data from external sensors and thereby improves the overall acquisition capability of the wireless communication network.

[0042] According to one embodiment of the first aspect, the method further comprises: - Sending, through the first radio node, a request to the second radio node to request the MCS information indicating that for a transmission, one MCS from the at least two predetermined MCSs can be selected by the first radio node.

[0043] Conversely, according to one embodiment of the second aspect, the method further comprises: - Receiving, by the second radio node, a request from the first radio node to request the MCS information indicating that for a transmission, an MCS can be selected from the at least two predetermined MCSs by the first radio node.

[0044] The request can be transmitted from the first radio node to the second radio node via a PUCCH, for example, as part of a scheduling request from the first radio node. The MCS information can then be transmitted from the second radio node to the first radio node in response to this request. This introduces a request mechanism that allows the first radio node to specifically request the option for flexible and dynamic selection of an MCS suitable for its data acquisition and / or communication task.

[0045] According to one embodiment of the second aspect, the method further comprises: - Receiving, by the second radio node, of acquisition data generated by the first radio node by conducting an environment survey of the first radio node using radio resources of the communication network, and / or - Receiving, through the second radio node, additional acquisition data generated by a sensor that is connectable to or connected to the first radio node.

[0046] Here, the (additional) acquisition data is preferably modulated and encoded according to the selected MCS or another MCS. For example, a first (acquisition-intensive) MCS can be selected to generate the acquisition data by performing (radar) acquisition. A second (communication-intensive) MCS can be selected to transmit the generated acquisition data. The received (additional) acquisition data can be transmitted from the first radio node to the second radio node via the shared physical uplink channel (PUSCH).

[0047] This allows the second radio node, in particular the network, to efficiently collect data generated by the first radio node and / or sensors connected to the first radio node, thus enabling more comprehensive environmental sensing or data collection.

[0048] According to one embodiment of the first and / or second aspect, the MCS information is represented by an MCS index, wherein a defined value of the MCS index indicates that, for a transmission, an MCS can be selected from the at least two predetermined MCSs by the first radio node. The MCS index can comprise a plurality of bits, e.g., one, two, three, or four octets, wherein one or more of the bits are used to indicate the option to select an MCS from one or more sets of predetermined MCSs, and wherein one or more of the other bits are used to indicate one or more fixed MCSs. Preferably, the one or more sets of predetermined MCSs consist of different MCSs, as defined by the other bit(s).

[0049] In 3GPP TS 38.214, an MCS index table for PUSCH is specified (Table 6.1.4.1-1). Here, the MCS index provided by the network in the DCI strictly defines the MCS, i.e., the modulation order, the target coding rate, and the spectral efficiency, to be used by the first radio node (user device) for its transmissions.

[0050] The MCS index according to 3GPP TS 38.214: Table 6.1.4.1-1 (see Table 1) can be used to indicate that, for a transmission, one MCS from the at least two predetermined MCSs can be selected by the first radio node. For this purpose, one of the reserved bits can be used, which is assigned to the MCS index I. MCSThis corresponds to {28, 29, 30, 31}. Here, each of the reserved bits can represent a different set of predetermined MCSs from which the first radio node can choose. The different sets can overlap or be disjoint with respect to the MCSs they contain. For example, signaling an MCS index I MCS = 28 corresponding to enabling the first radio node between the set of MCSs with I MCS selects {0, 1, 2, ..., 6, 7}; signaling an MCS index Index I MCS = 29 can correspond to enabling the first radio node between the set of MCSs with I MCS selects {8, 9, 10, ..., 14, 15}, etc. Alternatively, signaling an MCS index I MCS = 28 corresponding to enabling the first radio node to select from the set of MCSs with {0, 2, 4, 6, ..., 24, 26}; signaling an MCS index I MCS= 29 can correspond to enabling the first radio node between the set of MCSs with I MCS selects {0, 8, 16, 24}.

[0051] According to an alternative, one of the MCS indices already used according to 3GPP TS 38.214: Table 6.1.4.1-1, i.e. I, can be used. MCS = {0, 1, 2, ..., 26, 27}, can be used as the default configuration to indicate that the first radio node is authorized to flexibly select an MCS for its transmissions.

[0052] This provides a standardized and efficient way to represent and transmit MCS information, simplifies the MCS selection process, and ensures compatibility between different radio nodes within the wireless communication network. Table 1: 3GPP TS 38.214: Table 6.1.4.1-1: MCS index table for PUSCH with transformation precoding and 64QAM. MCS Index IMCS Modulation order Qm Target coding rate Rx 1024 Spectral efficiency 0 q 240 / q 0.2344 1 q 314 / q 0.3066 2 2 193 0.3770 3 2 251 0.4902 4 2 308 0.6016 5 2 379 0.7402 6 2 449 0.8770 7 2 526 1.0273 8 2 602 1.1758 9 2 679 1.3262 10 4 340 1.3281 11 4 378 1.4766 12 4 434 1.6953 13 4 490 1.9141 14 4 553 2.1602 15 4 616 2.4063 16 4 658 2.5703 17 6 466 2.7305 18 6 517 3.0293 19 6 567 3.3223 20 6 616 3.6094 21 6 666 3.9023 22 6 719 4.2129 23 6 772 4.5234 24 6 822 4.8164 25 6 873 5.1152 26 6 910 5.3320 27 6 948 5.5547 28 q reserved 29 2 reserved 30 4 reserved 31 6 reserved

[0053] According to another aspect of the invention, a wireless communication network is provided which includes at least the first radio node according to the third aspect and the second radio node according to the fourth aspect.

[0054] According to another aspect of the invention, a method for operating the wireless communication network is provided. The method for operating the communication network comprises the steps of the method according to the first aspect or its embodiments, as well as the steps of the method according to the second aspect or its embodiments.

[0055] The non-volatile, computer-readable medium is preferably configured to store the computer program that can be executed by a processor of the first LAN element and / or the second LAN element and / or the communication network. The non-volatile, computer-readable media may include RAM, ROM, EEPROM, and any other non-volatile storage device. Description of the characters

[0056] Exemplary embodiments of the present invention are shown in the figures, which are not to be interpreted as limiting the claims, and are explained in more detail below. Fig. Figure 1 schematically illustrates a wireless communication network according to one aspect of the invention; Fig. 2A, Fig. 2B, Fig. Figure 2C schematically illustrates different predetermined modulation and coding schemes; Fig.Figure 3 schematically illustrates methods according to embodiments of the invention; and Fig. Figure 4 schematically illustrates a method according to another embodiment of the invention.

[0057] Fig. Figure 1 schematically illustrates a wireless communication network 10 according to one aspect of the invention. The communication network 10 is configured as a cellular communication network 10. The communication network 10 comprises a first radio node 12 and a second radio node 14. The first radio node 12 is configured as a user device 12, which is arranged in a vehicle 16. The second radio node 14 is configured as a base station 14.

[0058] The first radio node 12 is configured to perform detection, in particular radar detection, of an environment of the first radio node containing a plurality of objects 18 using radio resources of the communication network 10. In other words, the first radio node 12 is configured to use the radio resources both for communication, e.g., transmitting control or communication data, and for radar detection, e.g., transmitting a radar waveform and receiving a reflection of the radar waveform from one of the objects 18 in the environment.

[0059] The vehicle 16 includes at least one additional sensor 20 for monitoring the environment of the vehicle 16. The additional sensor 20 can be selected from a group including: radar, camera, lidar, ultrasonic sensor.

[0060] To increase the flexibility in allocating the radio resources of the first radio node 12 between communication and radar detection, it is proposed to allow the first radio node 12 to select between at least two predetermined MCSs. Here, the predetermined MCSs differ in the ratio of radio resources allocated for communication to radio resources allocated for detection.

[0061] Fig. Figure 2 schematically illustrates different predetermined modulation and coding schemes, from which one can be selected by the first radio node 12.

[0062] In orthogonal frequency division multiplexing (OFDM), the available spectrum in the frequency domain is divided into several narrow subcarriers that are orthogonal to each other. Each subcarrier carries a portion of the data. Together, they enable the simultaneous transmission of multiple data streams, increasing the overall data rate and spectral efficiency. A resource element consists of a single subcarrier in the frequency domain and a single symbol in the time domain.

[0063] Fig.Figure 2A illustrates an example of a default MCS scheme that allocates a larger proportion of resources to communication than to acquisition. In this embodiment, 14% of the resource elements RE-S are reserved for acquisition, while 86% of the resource elements RE-C are reserved for communication. This default scheme can be used by the first radio node in a standard state, for example, as long as no request to perform an acquisition is received.

[0064] Fig.Figure 2B illustrates an example of a standard scheme that evenly distributes radio resources between communication and acquisition. Accordingly, 50% of the resource elements RE-S are reserved for acquisition, and the remaining 50% of the resource elements RE-C are reserved for communication. This acquisition-intensive scheme can be used when the first radio node is triggered to perform an acquisition. In this scheme, more radio resources are allocated to acquisition, while the first radio node can still transmit communication data.

[0065] Fig. 2C illustrates an example of a standard scheme that does not allocate any radio resources for data acquisition. Accordingly, 100% of the RE-C resource elements are reserved for communication. This communication-intensive scheme can be used, for example, to transmit sensor data such as camera or radar data to the network at a high data rate.

[0066] To enable the first radio node 12 to select between at least two predetermined MCSs, the first radio node 12 comprises a radio modem, a non-volatile, computer-readable medium comprising machine-readable instructions, and a processor configured to load and execute the machine-readable instructions to cause the first radio node 12 to execute the method according to the first aspect of the invention and / or its embodiments, in particular as shown in Fig. 3 and Fig. 4 shown.

[0067] Additionally, the second radio node 14 comprises a radio modem, a non-volatile, computer-readable medium containing machine-readable instructions, and a processor configured to load and execute the machine-readable instructions in order to cause the second radio node 14 to execute the method according to the second aspect of the invention and / or its embodiments, in particular as shown in Fig. 3 and Fig. 4 shown.

[0068] Fig. Figure 3 schematically illustrates methods according to embodiments of the invention.

[0069] Fig. Figure 3A schematically illustrates a method 100 for initiating a transmission in a wireless communication network using a selected MCS according to the first aspect of the invention.

[0070] Method 100 comprises a step 110 of receiving, by a first radio node of the communication network, MCS information from a second radio node of the communication network, wherein the received MCS information indicates that for a transmission an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0071] Furthermore, the procedure 100 includes a step 120 of selecting, by the first radio node, one MCS from the at least two predetermined MCSs based on the received MCS information.

[0072] Furthermore, procedure 100 includes a step 130 of initiating, by the first radio node, a transmission using the selected MCS.

[0073] Fig. Figure 3B schematically illustrates a procedure 200 for transmitting MCS information to a radio node of a wireless communication network.

[0074] Method 200 comprises a step 210 of transmitting MCS information to a first radio node of the communication network through a second radio node of the communication network, wherein the MCS information indicates that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0075] Fig. 3C schematically illustrates a procedure 300 for operating a communication network 10. The procedure 300 for operating the communication network 10 comprises procedures 100 and 200 according to the first and second aspects.

[0076] Method 300 comprises a step 310, corresponding to step 210 of Method 200, of transmitting, by a second radio node of the communication network, MCS information to a first radio node of the communication network, wherein the MCS information specifies that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0077] Method 300 comprises a step 320, corresponding to step 110 of Method 100, of receiving, by the first radio node of the communication network, the MCS information from the second radio node of the communication network, wherein the received MCS information indicates that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0078] Procedure 300 includes a step 330, which corresponds to step 120 of procedure 100, of selecting, by the first radio node, one MCS from the at least two predetermined MCSs based on the received MCS information.

[0079] Procedure 300 includes a step 340, which corresponds to step 130 of procedure 100, the initiation, by the first radio node, of a transmission using the selected MCS.

[0080] Procedure 300 includes a step 350, which corresponds to step 140 of procedure 100, the initiation, by the first radio node, of a further transmission to transmit the generated acquisition data.

[0081] Fig. Figure 4 schematically illustrates a method 400 according to another embodiment of the invention.

[0082] In step 410, the procedure 400 is initiated. According to one embodiment, a request to initiate the procedure 400 can be transmitted from a first or a subsequent radio node of the communication network, preferably a user device, to a second radio node, e.g., a base station, of the communication network. The triggering event, i.e., the reason why a resource allocation for communication and / or for performing the acquisition is initiated by the second radio node, can be a request from the first or a subsequent radio node. According to an alternative embodiment, the initiation of the procedure 400 by the second radio node occurs independently of a request from the first or a subsequent radio node.The initiation of procedure 400 can also include selecting, preferably by the second radio node, a radio node, here the first radio node, from a plurality of radio nodes assigned to the second radio node. During the initiation of procedure 400, the selected (first) radio node is preferably in a default state, i.e., it uses a standard MCS for transmissions. The standard MCS can be determined by the second radio node.

[0083] In step 420, the first radio node receives a request to provide acquisition data to the second radio node. The request is preferably transmitted from the second radio node to the first radio node.

[0084] In step 430, the request to provide collection data is acknowledged either explicitly or implicitly by the first radio node. In other words, the first radio node agrees to conduct a collection and / or share collection data or results with the second radio node. Alternatively, the first radio node can explicitly or implicitly reject the request to provide collection data, for example, by sending a transmission to the second radio node. The process can then continue with step 420. According to another alternative, the first radio node can be obligated by the second radio node to conduct the collection and / or provide the collection data, for example, due to an agreement between the first and second radio nodes.

[0085] In step 440, the first radio node receives control information transmitted by the second radio node. This control information can be in the form of DCI (Direct Control Information) transmitted on the PDCCH (Personal Digital Control Center). Preferably, the DCI includes an allocation of radio resources for a transmission by the first radio node, as well as corresponding transmission parameters. In other words, the first radio node is scheduled or configured by the second radio node for (uplink) transmissions. Furthermore, the DCI includes MCS (Multiple Content Selection) information indicating that, for a transmission by the first radio node using the allocated radio resources, the first radio node can select one of at least two predetermined MCSs.

[0086] Preferably, the MCS information is represented by an MCS index contained in the DCI, wherein a defined value of the MCS index indicates that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node.

[0087] Optionally, prior to step 440, a transmission can be sent from the first radio node to the second radio node to request the MCS information, which indicates that for a transmission, one MCS from at least two predetermined MCSs can be selected by the first radio node. This transmission can be made, for example, via the physical uplink control channel (PUCCH). In this process, both the MCS information and transmission resources for performing the acquisition and / or transmitting acquisition data from the first radio node can be requested.

[0088] In step 450, an MCS is selected from at least two predetermined MCSs based on the received MCS information. In other words, the received MCS index enables and triggers the selection of an MCS from at least two available, distinct MCSs. These at least two predetermined MCSs differ in the ratio of radio resources allocated for communication to those allocated for data acquisition. Accordingly, the MCS is selected based on whether the radio resources are primarily intended for data acquisition or communication. More precisely, the first radio node determines whether data acquisition is required to generate new data or whether existing data is to be transmitted.The available acquisition data may either have been generated by the first radio node before the request was received, or may have been or will be provided by a sensor that can be connected to or is connected to the first radio node.

[0089] In step 460, the first radio node receives acquisition data from a sensor connected to it via a wired or wireless connection. The sensor can be at least one additional sensor 20 of the vehicle 16, which connects to the first radio node 12 according to... Fig. 1. In step 470, the first radio node initiates a transmission to transfer the received acquisition data to the second radio node and / or another radio node of the communication network. Here, the first radio node selects an MCS with a high ratio of radio resources allocated for communication, e.g., the communication-intensive scheme according to Fig. 2C.

[0090] In step 480, in addition to or as an alternative to steps 460 and 470, a transmission is initiated by the first radio node to perform a survey of its surroundings using the allocated radio resources in order to generate survey data. In other words, the first radio node performs radar surveying by transmitting using its self-selected MCS (Multi-Circuit System). The first radio node selects an MCS with a balanced ratio of radio resources allocated for communication and surveying, such as the survey-intensive scheme according to [reference to relevant document]. Fig. 2B. Optionally, the first radio node can use a sequence of different predetermined MCSs for subsequent acquisition transmissions, as enabled by the proposed MCS information.

[0091] In step 490, the first radio node initiates a further transmission to transmit the generated acquisition data. For this purpose, the first radio node can request additional radio resources.

[0092] Alternatively, the radio resources allocated in step 440 can be used.

[0093] Upon completion of step 470 and / or step 490, the first radio node can return to its initial state, i.e., perform a transmission using a standard MCS.

Claims

[1] Method (100) for initiating a transmission in a wireless communication network (10) using a selected modulation and coding scheme (MCS), comprising: - Receiving (110) by a first radio node (12) of the communication network (10) of MCS information from a second radio node (14) of the communication network (10), wherein the received MCS information indicates that for a transmission an MCS from at least two predetermined MCSs can be selected by the first radio node (12); - Selecting (120), by the first radio node (12), one MCS from the at least two predetermined MCSs based on the received MCS information; and - Initiate (130), by the first radio node (12), a transmission using the selected MCS. [2] Method (100) according to claim 1, wherein - the first radio node (12) is configured to perform a survey of the environment of the first radio node (12) using radio resources (RE-S) of the communication network (10), and - the at least two predetermined MCSs differ in the ratio of radio resources allocated for communication (RE-C) to radio resources allocated for carrying out the acquisition (RE-S). [3] Method (100) according to claim 2, wherein the transmission is initiated to carry out a detection by the first radio node (12) of the environment of the first radio node (12) using radio resources (RE-S) of the communication network (10) to generate detection data. [4] Method (100) according to claim 3, further comprising: - Initiate, through the first radio node (12), an additional transmission to transmit the generated acquisition data. [5] Method (100) according to any one of claims 2 to 4, wherein the MCS is selected based on whether the radio resources are primarily used for carrying out the detection or for communication. [6] Method (100) according to any one of the preceding claims, further comprising: - Receiving, by the first radio node (12), additional acquisition data from a sensor (20) that is connectable to or connected to the first radio node (12), initiating transmission and / or an additional transmission to transmit the received additional acquisition data. [7] Method (100) according to any one of the preceding claims, further comprising: - Sending, through the first radio node (12), a request to the second radio node (14) to request the MCS information indicating that for a transmission an MCS can be selected from the at least two predetermined MCSs by the first radio node (12). [8] Method (200) for transmitting MCS information to a radio node of a wireless communication network (10), comprising: - Transmitting (210) MCS information to a first radio node (12) of the communication network (10) via a second radio node (14), wherein the MCS information specifies that for a transmission, an MCS from at least two predetermined MCSs can be selected by the first radio node (12). [9] Method (200) according to claim 8, further comprising: - Receiving, by the second radio node (14), a request from the first radio node (12) to request the MCS information indicating that for a transmission an MCS from the at least two predetermined MCSs can be selected by the first radio node (12). [10] Method (200) according to claim 8 or 9, further comprising: - Receiving, by the second radio node (14), of acquisition data generated by the first radio node (12) by acquiring an environment of the first radio node (12) using radio resources (RE-S) of the communication network (10), and / or - Receiving, through the second radio node (14), further acquisition data generated by a sensor (20) that is connectable to or connected with the first radio node (12). [11] Method (100; 200) according to one of the preceding claims, wherein the MCS information is represented by an MCS index, wherein a defined value of the MCS index indicates that for a transmission an MCS from the at least two predetermined MCSs can be selected by the first radio node (12). [12] First radio node (12), preferably a user device (12), of a wireless communication network (10), comprising: - a radio modem, - a non-volatile, computer-readable medium containing machine-readable instructions, and - a processor configured to load and execute the machine-readable instructions to cause the first radio node (12), preferably the user device (12), to execute the method (100) according to any one of claims 1 to 7 or claim 11. [13] Second radio node (14) of a wireless communication network (10), comprising: - a radio modem, - a non-volatile, computer-readable medium containing machine-readable instructions, and - a processor configured to load and execute the machine-readable instructions to cause the second radio node (14) to execute the method (200) according to any one of claims 8 to 11. [14] Computer program with machine-readable instructions for initiating - of the first radio node (12), preferably the user device (12), according to claim 12, to execute the method (100) according to one of claims 1 to 7 or claim 11, and / or - of the second radio node (14) according to claim 13, to carry out the method (200) according to one of claims 8 to 11. [15] Non-volatile, computer-readable medium on which the computer program according to claim 14 is stored. [16] Control information message, preferably transmitted via a physical control channel of a wireless communication network (10), comprising at least a first field and a second field, wherein - the first field includes an allocation of radio resources (RE-C, RE-S) for a transmission from a radio node (12) of the communication network (10), and - the second field MCS information includes, which indicates that for a transmission of the radio node (12) using the allocated radio resources (RE-C, RE-S), an MCS from at least two predetermined MCSs can be selected by the radio node (12). [17] Data carrier signal carrying the computer program according to claim 15 or the control information message according to claim 16.

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