User equipment for communicating over a wireless network and a wireless network node for connecting user equipment to a wireless network

Abstract

The invention relates to a user equipment for communicating over a wireless network; wherein the user equipment is configured to exchange in a first operating phase in a first one of operating modes only a part of signaling data over a primary component carrier; wherein the user equipment is configured to exchange in a second operating phase succeeding the first operating phase in a second one of operating modes simultaneously a part of signaling data over a selected primary component carrier of the primary component carriers of a first component carrier group and over a selected secondary component carrier of the secondary component carriers of a second component carrier group using the selected primary component carrier and the selected secondary component carrier, wherein the second operating phase is initiated in case a first trigger condition occurs; wherein the user equipment is configured to exchange in a third operating phase succeeding the second operating phase in a third one of operating modes using the selected secondary component carrier from the second operating phase as one of the primary component carriers, such that in the third operating phase the selected secondary component carrier from the second operating phase is added to the primary component carriers of the first component carrier group and removed from the secondary component carriers of the second component carrier group, wherein the third operating phase is initiated in case a second trigger condition occurs.

Description

[0001] manual

[0002] This invention relates to radio access technology. In particular, it relates to user equipment for communicating via a wireless network and wireless network nodes for connecting user equipment to a wireless network.

[0003] The purpose of this invention is to provide improved user equipment and improved wireless network nodes.

[0004] A user equipment for communicating via a wireless network is provided;

[0005] The user equipment is configured to communicate with one or more wireless network nodes of the wireless network simultaneously through a first component carrier group including one or more primary component carriers and a second component carrier group including one or more auxiliary component carriers.

[0006] The user equipment is configured to exchange signaling data with one or more radio network nodes via each primary component carrier, and to exchange user data with one or more radio network nodes via each primary component carrier and each secondary component carrier;

[0007] The user equipment is configured to communicate with one or more wireless network nodes of the wireless network using different operating modes;

[0008] The user equipment is configured to exchange signaling data only via the primary component carrier in the first operating mode during the first operating phase.

[0009] The user equipment is configured to, in the second operation phase following the first operation phase, in the second operation mode of the operation mode, simultaneously exchange a portion of the signaling data of the selected main component carrier via the main component carrier selected by the main component carrier of the first component carrier group and the auxiliary component carrier selected by the auxiliary component carrier of the second component carrier group, wherein the second operation phase is initiated when the first triggering condition occurs.

[0010] The user equipment is configured to use an auxiliary component carrier selected from the second operation phase as one of the main component carriers in the third operation mode of the operation mode in the third operation phase after the second operation phase, such that the auxiliary component carrier selected from the second operation phase is added to the main component carrier of the first component carrier group and removed from the auxiliary component carrier of the second component carrier group in the third operation phase, wherein the third operation phase is initiated when a second triggering condition occurs.

[0011] A wireless network can be any network capable of exchanging data, such as real-time data, streaming data, or file-based data, wherein the data connection between a user equipment and a wireless network node is a wireless data connection. In some embodiments, the network is a cellular network using 4G LTE, 5G NR, or other cellular network technologies. In other embodiments, the network is a local area network using technologies such as Wi-Fi.

[0012] A component carrier is a frequency range in which data is exchanged between a user equipment (UE) and a network node of a wireless network. Component carriers can carry uplink data (data sent from the UE to the wireless network node) and downlink data (data sent from the wireless network node to the UE) within the same frequency range. In other embodiments, a component carrier may include a first frequency subrange for uplink data and a second frequency subrange for downlink data, wherein the frequency subranges may be spaced apart from or adjacent to each other.

[0013] A connection between a user equipment and a wireless network node that uses more than one component carrier is also called carrier aggregation. Carrier aggregation allows for faster data transmission.

[0014] Signaling data can be control plane messages used to manage the connection between user equipment and wireless network nodes, including but not limited to mobility management, measurement configuration and reporting, and processing of equipment capabilities. It also includes user data, which is a portion of the transport data exchanged between user equipment and wireless network nodes as the actual data of interest.

[0015] The primary component carrier is the component carrier that exchanges signaling data, which is used to coordinate the connection between user equipment and radio network nodes. All other component carriers are auxiliary component carriers. A connection can consist of links on multiple component carriers.

[0016] The term "operation phase" refers to a time interval, while the term "operation mode" refers to a method of operation. The user equipment according to the invention is configured to communicate with one or more wireless network nodes of a wireless network using different operation modes. Clearly, at least one of the wireless network nodes must be configured to communicate with the user equipment using the same operation mode. In other words, one of the different operation modes can only be used when both the user equipment and the wireless network node are available.

[0017] In a first operating mode used at least during a portion of the first operating phase, signaling data is exchanged only through the first component carrier group, while user data is exchanged partly through the first component carrier group and partly through the second component carrier group.

[0018] In the second operating mode, used at least a portion of the second operating phase, signaling data from the selected primary component carrier is additionally transmitted to the selected secondary component carrier. The second operating phase is initiated if a first trigger condition occurs. The first trigger condition typically indicates a physical quality degradation of the selected primary component carrier. In the second operating mode, the connection remains managed by signaling data transmitted via the selected primary component carrier. This means that signaling data exchanged via the selected secondary component carrier remains unused in the second operating mode.

[0019] However, if the second triggering condition occurs, the third operating phase is initiated, and the signaling data exchanged via the selected auxiliary component carrier is immediately available for use in the third operating mode, where the selected auxiliary component carrier becomes the primary component carrier on which the connection is managed using signaling data exchanged via the new primary component carrier. The second triggering condition also indicates a degradation in physical quality of the selected primary component carrier. The first and second triggering conditions can be the same or different triggering conditions.

[0020] In existing wireless network access technologies using carrier aggregation, if the primary component carrier is physically degraded or lost, the connection between the user equipment and the wireless network node is completely lost and needs to be re-established, even if the secondary component carriers are fully available. This is because signaling data is completely lost in this scenario. The loss of the primary component carrier can be caused by congestion, multipath selective fading, or beam peak misalignment, making it impossible to recover the link using available link recovery mechanisms.

[0021] In contrast, this invention allows the primary component function to be transferred from a selected primary component carrier to a selected secondary component carrier, which then becomes the primary component carrier. Therefore, data transmission is not interrupted.

[0022] This invention enables more flexible mapping of main component functions on available component carriers.

[0023] It allows the exchange of control plane data between primary and secondary component carriers without releasing and adding secondary component carriers in a carrier aggregation configuration.

[0024] Regarding the control plane portion, the primary component carrier swapping function is more efficient in terms of bandwidth than carrier aggregation replication because it provides a configurable period for replicating control plane data, making it suitable for a variety of use cases beyond URLLC. It also avoids user plane bandwidth fluctuations by protecting the control plane functions performed by the primary component carrier under different usage conditions.

[0025] Furthermore, this invention provides a way to reduce the switching time and flexibility of aggregated carriers in multi-link connection scenarios. In multi-link connection scenarios, the overall link availability and coordination can easily lead to the degradation or loss of signaling data of the main component carrier.

[0026] The user equipment can be configured to select an auxiliary component carrier from a set of selected auxiliary component carriers of the second component carrier group in a second operating mode of the operating mode after the first operating phase, wherein the second operating phase is initiated when the first triggering condition occurs.

[0027] According to some embodiments, the user equipment is configured to use a primary component carrier selected from the second operation phase as one of the auxiliary component carriers in a third operation mode during a third operation phase, such that the primary component carrier selected from the second operation phase is added to the auxiliary component carriers of the second component carrier group and removed from the primary component carriers of the first component carrier group during the third operation phase. Through these features, the initial bandwidth from the first operation phase can be maintained during the referenced operation phase, provided that the primary component carrier selected from the second operation phase remains available during the referenced operation phase.

[0028] According to some embodiments, the first triggering condition and / or the second triggering condition are related to the physical quality of at least some primary component carriers and / or the physical quality of at least some auxiliary component carriers. Component carriers available in the first or second operating mode can be rated according to several metrics (including statistical measures employed therein), wherein the first triggering condition and / or the second triggering condition can be defined based on such metrics (again, including statistical measures employed therein).

[0029] The following incomplete list summarizes some examples of metrics:

[0030] - Signal-to-noise ratio (SNR)

[0031] -Signal-to-interference-plus-noise ratio (SINR)

[0032] -Reference Signal Received Power (RSRP)

[0033] -Reference signal reception quality (RSRQ)

[0034] - Angular spread of component carriers

[0035] - Small-scale fading effect

[0036] -Temporal behavior of the channel

[0037] -Bit error rate (BER)

[0038] - Packet loss (PL),

[0039] - Packet Error Rate (PER)

[0040] - Triggers originating from wireless network nodes, the network, or configured in the user equipment.

[0041] According to some embodiments, the user equipment is configured to transmit capability information to one of the radio network nodes via one of the primary component carriers during a first operation phase, wherein the capability information indicates that the user equipment is capable of operating in a second and a third operation mode. These features ensure that the second operation phase is initiated only in this case, wherein the user equipment is configured according to the invention.

[0042] According to some embodiments, the user equipment is configured to receive trigger information from one of the wireless network nodes via one of the primary component carriers during a first operational phase, wherein the trigger information indicates a first trigger condition and / or a second trigger condition. These features ensure that the first trigger condition and / or the second trigger condition are applicable to the current configuration of the available wireless network nodes.

[0043] According to some embodiments, the user equipment is configured to send trigger acknowledgment information to one of the radio network nodes via one of the primary component carriers during a first operational phase, wherein the trigger acknowledgment information indicates that the trigger information has been received by the user equipment. These features allow the radio network node to retransmit the trigger information if the user equipment has not acknowledged that it has received the trigger condition.

[0044] According to some embodiments, the user equipment is configured to receive selection information from one of the radio network nodes via one of the primary component carriers during a first operation phase, wherein the selection information indicates which auxiliary component carrier in a second group of component carriers is the auxiliary component carrier used for selecting a second operation mode, or wherein the selection information indicates the conditions for selecting the auxiliary component carrier for the second operation mode. These features ensure that the selection of the primary component carrier and / or the selection of the auxiliary component carrier is suitable for the current configuration of the available radio network nodes.

[0045] According to some embodiments, the user equipment is configured to send selection acknowledgment information to one of the radio network nodes via one of the primary component carriers during a first operational phase, wherein the selection acknowledgment information indicates that the selection information has been received by the user equipment. These features allow the radio network node to retransmit the selection information if the user equipment has not acknowledged that it has received the selection information.

[0046] According to some embodiments, the user equipment is configured to receive configuration information from one of the radio network nodes via one of the primary component carriers during a first operation phase, wherein the configuration information indicates the configuration of the auxiliary component carriers for selecting a second operation mode. These features ensure that the required configuration information is available at the user equipment.

[0047] According to some embodiments, the user equipment is configured to send configuration confirmation information to one of the radio network nodes via one of the primary component carriers during a first operation phase, wherein the configuration confirmation information indicates that the configuration information has been received by the user equipment.

[0048] According to some embodiments, the user equipment is configured to detect the occurrence of a first triggering condition during a first operation phase, and, if the occurrence of the first triggering condition is detected, to initiate a second operation phase by switching to a second operation mode and by sending first handover information via one of the primary component carriers to one of the radio network nodes, wherein the first handover information indicates that the user equipment is in the second operation mode. These features allow the radio network node to initiate the second operation mode simultaneously with the user equipment, thereby enabling the establishment of the second operation mode.

[0049] According to some embodiments, the user equipment is configured to detect the occurrence of a second triggering condition in the second operating phase at the end of a time interval that begins at the start of the second operating phase. The time interval may be predefined and is measured by the user equipment's clock. The time interval defines the duration of the second operating phase. The time interval should be at least the same as the time required to transmit all necessary user data via the selected auxiliary component carrier, so that the necessary user data is available at the selected auxiliary component carrier at the start of the third operating phase, allowing the selected component carrier to take over the primary component function without delay. The time interval ensures that unnecessary switching of the primary component function is avoided if the selected primary component carrier degrades only for a short time interval.

[0050] According to some embodiments, the user equipment is configured to initiate a third operation phase if a second triggering condition is detected at the end of a time interval, by switching to a third operating mode and by sending second handover information via one of the primary component carriers to one of the wireless network nodes, wherein the second handover information indicates that the user equipment is in the third operating mode. These features allow the wireless network node to initiate the third operating mode simultaneously with the user equipment, thereby enabling the establishment of the third operating mode.

[0051] According to some embodiments, the user equipment is configured to initiate a fourth operating phase following the second operating phase if no second triggering condition is detected at the end of the time interval, by switching to a first operating mode and sending third handover information via one of the primary component carriers to one of the radio network nodes, wherein the third handover information indicates that the user equipment is in the first operating mode. These features ensure that the first operating mode is re-established without requiring a handover of the primary component function.

[0052] On the other hand, a method for operating user equipment to communicate via a wireless network is provided;

[0053] The user equipment is configured to communicate with one or more wireless network nodes of the wireless network simultaneously through a first component carrier group including one or more primary component carriers and a second component carrier group including one or more auxiliary component carriers.

[0054] The user equipment is configured to communicate with one or more wireless network nodes of the wireless network using different operating modes;

[0055] The user equipment is configured to exchange signaling data with one or more radio network nodes via each primary component carrier, and to exchange user data with one or more radio network nodes via each primary component carrier and each secondary component carrier;

[0056] The method includes the following steps:

[0057] In the first operation phase, the user equipment is operated in the first operation mode of the operation mode, wherein only a portion of the signaling data is exchanged via the primary component carrier in the first operation mode;

[0058] In the second operation phase following the first operation phase, the user equipment operates in the second operation mode of the operation mode, wherein, in the second operation mode, a portion of the signaling data of the primary component carrier selected by the primary component carrier of the first component carrier group is exchanged simultaneously by the selected primary component carrier and the auxiliary component carrier selected by the auxiliary component carrier of the second component carrier group, wherein the second operation phase is initiated when the first triggering condition occurs.

[0059] The user equipment operates in a third operating mode in the third operating phase following the second operating phase, wherein in the third operating mode, the auxiliary component carrier selected from the second operating phase is used as one of the main component carriers, such that in the third operating phase, the auxiliary component carrier selected from the second operating phase is added to the main component carrier of the first component carrier group and removed from the auxiliary component carrier of the second component carrier group, wherein the third operating phase is initiated upon the occurrence of a second triggering condition.

[0060] In another aspect, a computer program is provided that runs on a processor to perform the methods described herein.

[0061] In another aspect, a wireless network node is provided for connecting user equipment for communicating via a wireless network to the wireless network;

[0062] The wireless network node is configured to communicate with the user equipment simultaneously via a first component carrier group including one or more primary component carriers and a second component carrier group including one or more auxiliary component carriers.

[0063] The wireless network nodes are configured to communicate with user equipment using different operating modes;

[0064] The wireless network node is configured to exchange signaling data with the user equipment via each primary component carrier, and to exchange user data with the user equipment via each primary component carrier and each secondary component carrier;

[0065] In this configuration, the wireless network node is configured to exchange a portion of the signaling data only via the primary component carrier in the first operating mode of the first operating phase.

[0066] The wireless network node is configured to, in the second operation phase following the first operation phase, simultaneously exchange a portion of the signaling data of the selected main component carrier through the main component carrier selected by the main component carrier of the first component carrier group and the auxiliary component carrier selected by the auxiliary component carrier of the second component carrier group, in the second operation mode of the operation mode, wherein the second operation phase is initiated when the first triggering condition occurs.

[0067] The wireless network node is configured to use an auxiliary component carrier selected from the second operation phase as one of the main component carriers in the third operation mode of the operation mode after the second operation phase, such that the auxiliary component carrier selected from the second operation phase is added to the main component carrier of the first component carrier group and removed from the auxiliary component carrier of the second component carrier group in the third operation phase, wherein the third operation phase is initiated when a second triggering condition occurs.

[0068] The wireless network node according to the invention is configured to work in conjunction with the user equipment according to the invention. All definitions and interpretations given above regarding the user equipment are equally valid for the wireless network node. The wireless network node according to the invention has the advantages described above.

[0069] According to some embodiments, a wireless network node is configured to use a primary component carrier selected from the second operation phase as one of the auxiliary component carriers in a third operation mode during a third operation phase, such that during the third operation phase, the primary component carrier selected from the second operation phase is added to the auxiliary component carriers of the second component carrier group and removed from the primary component carriers of the first component carrier group.

[0070] According to some embodiments, the first triggering condition and / or the second triggering condition are related to the physical quality of at least some primary component carriers and / or the physical quality of at least some auxiliary component carriers.

[0071] According to some embodiments, a wireless network node is configured to receive capability information from a user equipment via one of the primary component carriers during a first operation phase, wherein the capability information indicates that the user equipment is capable of operating in a second operation mode and a third operation mode.

[0072] According to some embodiments, a wireless network node is configured to send trigger information to a user equipment via one of the primary component carriers during a first operation phase, wherein the trigger information indicates a first trigger condition and / or a second trigger condition.

[0073] According to some embodiments, a wireless network node is configured to receive trigger acknowledgment information from a user equipment via one of the primary component carriers during a first operational phase, wherein the trigger acknowledgment information indicates that the trigger information has been received by the user equipment.

[0074] According to some embodiments, a wireless network node is configured to send selection information to a user equipment via one of the primary component carriers during a first operation phase, wherein the selection information indicates which auxiliary component carrier in a second group of component carriers is the auxiliary component carrier for selecting a second operation mode, or wherein the selection information indicates the condition for selecting an auxiliary component carrier for the second operation mode.

[0075] According to some embodiments, a wireless network node is configured to receive selection confirmation information from a user equipment via one of the primary component carriers during a first operational phase, wherein the selection confirmation information indicates that selection information has been received by the user equipment.

[0076] According to some embodiments, a wireless network node is configured to transmit configuration information to a user equipment via one of the primary component carriers during a first operation phase, wherein the configuration information indicates the configuration of an auxiliary component carrier for the selection of a second operation mode.

[0077] According to some embodiments, a wireless network node is configured to receive configuration confirmation information from a user equipment via one of the primary component carriers during a first operational phase, wherein the selection confirmation information indicates that the configuration information has been received by the user equipment.

[0078] According to some embodiments, a wireless network node is configured to switch to a second operating mode after receiving first handover information from a user equipment via one of the primary component carriers, wherein the first handover information indicates that the user equipment is in the second operating mode.

[0079] According to some embodiments, a wireless network node is configured to switch to a third operating mode after receiving second handover information from a user equipment via one of the primary component carriers, wherein the second handover information indicates that the user equipment is in the third operating mode.

[0080] According to some embodiments, a wireless network node is configured to switch to a first operating mode in a fourth operating phase following a second operating phase after receiving third handover information from a user equipment via one of the primary component carriers, wherein the third handover information indicates that the user equipment is in the first operating mode.

[0081] In another aspect, a method for operating a wireless network node is provided, the wireless network node being used to connect user equipment for communicating over a wireless network to the wireless network;

[0082] The wireless network node is configured to communicate with the user equipment simultaneously via a first component carrier group including one or more primary component carriers and a second component carrier group including one or more auxiliary component carriers.

[0083] The wireless network nodes are configured to communicate with user equipment using different operating modes;

[0084] The wireless network node is configured to exchange signaling data with the user equipment via each primary component carrier, and to exchange user data with the user equipment via each primary component carrier and each secondary component carrier.

[0085] The method includes the following steps:

[0086] In the first operation phase, the wireless network node operates in the first operation mode of the operation mode, wherein only a portion of the signaling data is exchanged via the primary component carrier.

[0087] In the second operation phase following the first operation phase, the wireless network node operates in the second operation mode of the operation mode. In the second operation mode, a portion of the signaling data of the primary component carrier selected by the primary component carrier of the first component carrier group is exchanged simultaneously by the selected primary component carrier and the auxiliary component carrier selected by the auxiliary component carrier of the second component carrier group. The second operation phase is initiated when the first triggering condition occurs.

[0088] In the third operation phase following the second operation phase, the wireless network node operates in the third operation mode of the third operation mode, wherein in the third operation mode, the auxiliary component carrier selected from the second operation phase is used as one of the main component carriers, such that in the third operation phase, the auxiliary component carrier selected from the second operation phase is added to the main component carriers of the first component carrier group and removed from the auxiliary component carriers of the second component carrier group, wherein the third operation phase is initiated upon the occurrence of the second triggering condition.

[0089] In another aspect, a computer program is provided that runs on a processor to perform the methods described herein.

[0090] Preferred embodiments of the invention will then be discussed with reference to the accompanying drawings, in which:

[0091] Figure 1 An embodiment of a user equipment according to the present invention is illustrated in schematic form, which communicates with a wireless network node according to the present invention;

[0092] Figure 2 An embodiment of a user equipment according to the present invention is illustrated in schematic form, which communicates with two wireless network nodes according to the present invention;

[0093] Figure 3 The different operational stages of communication between a user equipment according to the present invention and a wireless network node according to the present invention are illustrated in the form of schematic diagrams.

[0094] Figure 4 illustrates a flowchart illustrating the coordination between a user equipment according to the present invention and a wireless network node according to the present invention regarding different operating modes for communication;

[0095] Figure 5 illustrates another flowchart illustrating the coordination between a user equipment according to the invention and a wireless network node according to the invention regarding different operating modes for communication;

[0096] Figure 6 The method of selecting one or more primary component carriers for a third operating mode of communication between a user equipment according to the invention and a wireless network node according to the invention is illustrated in schematic form.

[0097] Equal or equivalent elements, or elements with equal or equivalent functions, are indicated by equal or equivalent reference numerals in the following description.

[0098] In the following description, several details are set forth to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention. Furthermore, features of the different embodiments described below can be combined with each other unless otherwise specifically stated.

[0099] Figure 1 An embodiment of the user equipment 1 according to the present invention is illustrated in the form of a schematic diagram, wherein the user equipment 1 communicates with the wireless network node 2 according to the present invention.

[0100] Figure 1 The image shows user equipment 1, used for communication via a wireless network;

[0101] User equipment 1 is configured to communicate with one or more wireless network nodes 2 of the wireless network simultaneously through a first component carrier group 3 including one or more primary component carriers 4 and a second component carrier group 5 including one or more auxiliary component carriers 6.

[0102] User equipment 1 is configured to exchange a portion of signaling data SD with one or more radio network nodes 2 via each primary component carrier 4, and a portion of user data UD with one or more radio network nodes 2 via each primary component carrier 4 and each secondary component carrier 6;

[0103] User equipment 1 is configured to communicate with one or more wireless network nodes 2 of the wireless network using different operating modes FOM, SOM, and TOM.

[0104] User equipment 1 is configured to exchange only a portion of signaling data SD via primary component carrier 4 in the first operation mode FOM, SOM, and TOM during the first operation phase FOP.

[0105] User equipment 1 is configured to, in the second operation phase SOP following the first operation phase FOM, in the second operation mode SOM of operation mode FOM, SOM, TOM, simultaneously exchange the signaling data SD portion of the selected main component carrier 7 via the main component carrier 7 selected by the main component carrier of the first component carrier group 3 and the auxiliary component carrier 8 selected by the auxiliary component carrier 6 of the second component carrier group 5, wherein the second operation phase SOP is initiated when the first triggering condition FTC occurs.

[0106] In the third operation phase TOP following the second operation phase SOP, user equipment 1 is configured to use an auxiliary component carrier 8 selected from the second operation phase SOP as one of the main component carriers 4 in the third operation mode TOM of the operation modes FOM, SOM, and TOM, such that in the third operation phase TOP, the auxiliary component carrier 8 selected from the second operation phase SOP is added to the main component carrier 4 of the first component carrier group 3 and removed from the auxiliary component carrier 6 of the second component carrier group 5, wherein the third operation phase TOP is initiated in the event of the second trigger condition STC.

[0107] According to some embodiments, user equipment 1 is configured to use a primary component carrier 7 selected from the second operation phase SOP as one of the auxiliary component carriers 6 in the third operation mode TOM of the operation mode in the third operation phase TOP, such that the primary component carrier 7 selected from the second operation phase SOP in the third operation phase TOP is added to the auxiliary component carriers 6 of the second component carrier group 5 and removed from the primary component carrier 4 of the first component carrier group 3.

[0108] Figure 1 A wireless network node 2 is shown, which is used to connect user equipment 1, which is used for communication via the wireless network, to the wireless network;

[0109] The wireless network node 2 is configured to communicate with the user equipment 1 simultaneously through a first component carrier group 3 including one or more primary component carriers 4 and a second component carrier group 5 including one or more auxiliary component carriers 6.

[0110] Among them, wireless network node 2 is configured to communicate with user equipment 1 using different operating modes FOM, SOM, and TOM;

[0111] Among them, the wireless network node 2 is configured to exchange part of signaling data SD with user equipment 1 through each main component carrier 4, and part of user data UD with user equipment 1 through each main component carrier 6 and each auxiliary component carrier 6;

[0112] Among them, wireless network node 2 is configured to exchange only part of the signaling data SD through the main component carrier 4 in the first operation mode FOM, SOM, TOM during the first operation phase FOP.

[0113] In the second operation phase SOP following the first operation phase FOP, in the second operation mode SOM of operation mode FOM, SOM, TOM, the signaling data SD of the selected main component carrier 7 of the main component carrier 4 of the first component carrier group 3 and the auxiliary component carrier 8 of the auxiliary component carrier 6 of the second component carrier group 5 are simultaneously exchanged. The second operation phase SOP is started when the first triggering condition FTC occurs.

[0114] In the third operation phase TOP following the second operation phase SOP, the wireless network node 2 is configured to use the auxiliary component carrier 8 selected from the second operation phase SOP as one of the main component carriers 4 in the third operation mode TOM of the operation modes FOM, SOM, and TOM. This is such that in the third operation phase TOP, the auxiliary component carrier 8 selected from the second operation phase SOP is added to the main component carrier 4 of the first component carrier group 3 and removed from the auxiliary component carrier 6 of the second component carrier group 5. The third operation phase TOP is initiated when the second trigger condition STC occurs.

[0115] According to some embodiments, the wireless network node 2 is configured to use a primary component carrier 7 selected from the second operation phase SOP as one of the auxiliary component carriers 6 in the third operation mode TOM during the third operation phase TOP, such that the primary component carrier 7 selected from the second operation phase SOP is added to the auxiliary component carriers 6 of the second component carrier group 5 and removed from the primary component carrier 4 of the first component carrier group 3.

[0116] exist Figure 1 In this example, User Equipment 1 connects to a single Radio Network Node 2 via a first component carrier group 3 (in this example, only one primary component carrier 4) and a second component carrier group 5 (in this example, only one secondary component carrier 6). All signaling data SD is carried by the first component carrier group 3 in the first Operation Phase (FOP) and the first Operation Mode (FOM). User data UD is carried partly by the first component carrier group 3 and partly by the second component carrier group 5 in the first Operation Phase (FOP) and the first Operation Mode (FOM). (Refer to...) Figure 3 Figure 5 explains the second operating mode SOM used for the second operating stage SOP and the third operating mode TOM used for the third operating stage TOP.

[0117] Figure 2 An embodiment of the user equipment 1 according to the present invention is illustrated in schematic form, which communicates with two wireless network nodes 2.1 and 2.2 according to the present invention. In this example, the user equipment 1 is connected to the wireless network nodes 2.1 and 2.2 via a first component carrier group 3 (including primary component carriers 4.1 and 4.2) and via a second component carrier group 5 (including auxiliary component carriers 6.1, 6.2 and 6.3).

[0118] As previously mentioned, signaling data SD is carried by first component carrier group 3 in the first operating phase (FOP) and first operating mode (FOM). User data UD is carried partly by first component carrier group 3 and partly by second component carrier group 5 in the first operating phase (FOP) and first operating mode (FOM). (Refer to...) Figure 3 Figure 5 explains the second operating mode SOM used for the second operating stage SOP and the third operating mode TOM used for the third operating stage TOP.

[0119] As an example, Figure 3 The schematic diagram illustrates different operational phases for communication between a user equipment 1 according to the present invention and a wireless network node 2 according to the present invention: FOP, SOP, and TOP.

[0120] Figure 3 A method for operating user equipment 1 to communicate via a wireless network is shown;

[0121] User equipment 1 is configured to communicate with one or more wireless network nodes 2 of the wireless network simultaneously through a first component carrier group 3 including one or more primary component carriers 4 and a second component carrier group 5 including one or more auxiliary component carriers 6.

[0122] User equipment 1 is configured to communicate with one or more wireless network nodes 2 of the wireless network using different operating modes FOM, SOM, and TOM.

[0123] User equipment 1 is configured to exchange a portion of signaling data SD with one or more radio network nodes 2 via each primary component carrier 4, and a portion of user data UD with one or more radio network nodes 2 via each primary component carrier 4 and each secondary component carrier 6;

[0124] The method includes the following steps:

[0125] In the first operation phase FOP, user equipment 1 operates in the first operation mode FOM of operation modes FOM, SOM, TOM, wherein only the signaling data SD is exchanged via the main component carrier 4 in the first operation mode FOM.

[0126] In the second operation phase SOP following the first operation phase FOP, user equipment 1 is operated in the second operation mode SOM of operation modes FOM, SOM, and TOM. In the second operation mode SOM, the signaling data SD portion of the primary component carrier 7 selected by the primary component carrier 4 of the first component carrier group 3 is simultaneously exchanged through the selected primary component carrier 7 and the auxiliary component carrier 8 selected by the auxiliary component carrier 6 of the second component carrier group 5. The second operation phase SOP is initiated when the first trigger condition FTC occurs.

[0127] In the third operation phase TOP following the second operation phase SOP, the user equipment operates in the third operation mode FOM of the operation modes FOM, SOM, and TOM. In the third operation mode TOM, the auxiliary component carrier 8 selected from the second operation phase SOP is used as one of the main component carriers 4, such that in the third operation phase TOP, the auxiliary component carrier 8 selected from the second operation phase SOP is added to the main component carrier 4 of the first component carrier group 3 and removed from the auxiliary component carrier 6 of the second component carrier group 5. The third operation phase TOP is initiated in the event of the second trigger condition STC.

[0128] Figure 3 A computer program for performing the methods described herein is shown when running on a processor.

[0129] Figure 3A method for operating a wireless network node 2 is shown, which is used to connect a user equipment 1 for communication via the wireless network to the wireless network.

[0130] The wireless network node 2 is configured to communicate with the user equipment 1 simultaneously through a first component carrier group 3 including one or more primary component carriers 4 and a second component carrier group 5 including one or more auxiliary component carriers 6.

[0131] Among them, wireless network node 2 is configured to communicate with user equipment 1 using different operating modes FOM, SOM, and TOM;

[0132] Among them, the wireless network node 2 is configured to exchange part of signaling data SD with user equipment 1 through each main component carrier 4, and part of user data UD with user equipment 1 through each main component carrier 4 and through each auxiliary component carrier 6;

[0133] The method includes the following steps:

[0134] In the first operation phase FOP, the wireless network node 2 operates in the first operation mode FOM of operation modes FOM, SOM, TOM, wherein only the signaling data SD portion is exchanged via the main component carrier 4 in the first operation mode FOM.

[0135] In the second operation phase SOP following the first operation phase FOP, the wireless network node 2 operates in the second operation mode SOM of operation modes FOM, SOM, and TOM. In the second operation mode SOM, the signaling data SD portion of the primary component carrier 7 selected by the primary component carrier 4 of the first component carrier group 3 is simultaneously exchanged through the selected primary component carrier 7 and the auxiliary component carrier 8 selected by the auxiliary component carrier 6 of the second component carrier group 5. The second operation phase SOP is initiated when the first trigger condition FTC occurs.

[0136] In the third operation phase TOP following the second operation phase SOP, the wireless network node 2 operates in the third operation mode FOM among the operation modes FOM, SOM, and TOM. In the third operation mode TOM, the auxiliary component carrier 8 selected from the second operation phase SOP is used as one of the main component carriers 4, such that in the third operation phase TOP, the auxiliary component carrier 8 selected from the second operation phase SOP is added to the main component carrier 4 of the first component carrier group 3 and removed from the auxiliary component carrier 6 of the second component carrier group 5. The third operation phase TOP is initiated when the second trigger condition STC occurs.

[0137] Figure 3A computer program is shown for performing the method according to the preceding claims when run on a processor.

[0138] Examples of signaling data SD and user data UD allocation are as follows: Figure 3 As shown, the first frequency band FFB and the second frequency band SFB are used. Although the use of the first frequency band FFB and the second frequency band SFB has been changed, the frequency definitions of the first frequency band FFB and the second frequency band SFB have not changed.

[0139] Referring to the example shown, in the first operating phase (FOP) and the first operating mode (FOM), the first frequency band (FFB) is used as the primary component carrier 4 carrying both signaling data (SD) and user data (UD), and the second frequency band (SFB) is used as the auxiliary component carrier 6 carrying only user data (UD). Therefore, this state represents what is known as normal operation.

[0140] In the two additional operating phases SOP and TOP, signaling data SD will be transmitted from the first frequency band FFB to the second frequency band SFB without interrupting the transmission of signaling data SD.

[0141] In the second operating phase SOP (which may be referred to as the intermediate phase), in the second operating mode SOM, the signaling data SD is additionally carried by the second frequency band SFB. This ensures that the flow of signaling data SD and user data UD is not interrupted, because the frequency bands FFB and SFB effectively carry the same data. However, it must be noted that the second frequency band SFB is still used as auxiliary component carrier 6, so that only the signaling data SD carried by the primary component carrier 4 at the first frequency band FFB is used to coordinate the connection between user equipment 1 and radio network node 2.

[0142] In the third operating phase TOP, the transition to the third operating mode TOM is completed: the first frequency band FFB is used only for user data UD, and therefore is used as auxiliary component carrier 4; the second frequency band SFB is used for signaling data SD and user data UD, and therefore is used as primary component carrier 4.

[0143] In order to enable switching between the primary component carrier 4 and the secondary component carrier 6, several steps can be performed:

[0144] User Equipment 1 needs to be provided with a first trigger condition FTC that initiates the transition from the first operational phase (FOP) to the second operational phase (SOP), and a second trigger condition STC that initiates the transition from the second operational phase (SOP) to the third operational phase (TOP). The trigger conditions FTC and STC need to be defined in a way that does not cause frequent changes between the first operational phase (FOP) and subsequent operational phases (SOP, TOP), as small and large-scale changes are inherent to the radio link. In this regard, first, second, or even higher-order statistics regarding channel quality can be used. Channel quality information can be obtained from various reports, such as a configurable Channel State Information Report (CSI-R), where User Equipment 1 can report the channel quality in the time, frequency, and spatial domains on all active downlink component carriers. Regarding the uplink, Radio Network Node 2 can determine the channel quality based on the Sounding Reference Signal (SRS).

[0145] If / when the first trigger condition FTC is met on the selected secondary component carrier 8, all physical layer data (PHY), medium access layer data (MAC), RLC, and packet data convergence protocol data (PDCP) resources need to be configured. For example, configuration is required if the physical downlink data channel (PDCCH) and physical uplink channel (PUCCH) resources are unavailable. Regarding physical downlink data channel (PDCCH) resources / monitoring, a complete configuration of the physical downlink data channel (PDCCH) resources on the selected secondary component carrier 8 is required if only suitable secondary component carriers are cross-scheduled. This includes the configuration of public and user equipment-specific search spaces and the allocation of appropriate radio network temporary identifiers—e.g., new system information radio network temporary identifiers (SI-RNTI), new paging radio network temporary identifiers (P-RNTI), and optional new cell radio network temporary identifiers (C-RNTI). These can be passed in dedicated signaling and should be reserved as part of the new configuration for later use in the event of an exchange between the primary component carrier 4 and secondary component carrier 6.

[0146] The selected auxiliary component carrier should activate Radio Link Monitoring (RLM). Radio Link Monitoring (RLM) will enable the monitoring of downlink link quality based on reference signals in the configured resources in order to detect the downlink radio link quality of the auxiliary component carrier. The configured resources may initially be Channel State Reference Signals (CSI-RS) only on the active downlink bandwidth portion. On each monitored resource, User Equipment 1 may estimate the downlink radio link quality and compare it with configured thresholds Qout and Qin. Threshold Qout is defined as the level at which the downlink radio link cannot be reliably received and corresponds to the out-of-synchronization block error rate (BLERout) (defined in Table 6.5.1-1

[32] ). Threshold Qin is defined as the level at which the downlink radio link quality can be received more reliably than at Qout and corresponds to the synchronization block error rate (BLERin) defined in Table 6.5.1-1. The out-of-synchronization block error rate (BLERout) and the synchronization block error rate (BLERin) are determined based on the network configuration signaled by higher layers.

[0147] To achieve proper scheduling and allocation across different carriers, new radio link control entities and logical channel groups can be established, similar to the case of carrier aggregation replication. In the downlink, the prioritization and distribution of signaling data can be performed by the scheduler, similar to carrier aggregation replication or using some other method. In the uplink, existing, well-defined priority handling rules in User Equipment 1 can be used. Prioritization in the equipment determines which logical channels are eligible for multiplexing using the received scheduling authorization, including the set of uplink component carriers and a portion of the resources on which the logical channels are permitted to be transmitted.

[0148] After performing the above steps, apply the new configuration and start the newly defined distributed radio link control timer. Then, transmit and receive signal data SD on both component carriers 7 and 8. During the transient period, at the receiver, higher layers, such as the Radio Link Control (RLC) or Packet Data Convergence Protocol (PDCP) layer, can be configured to remove duplicates in full-duplex mode and when data is successfully received on both carriers.

[0149] If the second trigger condition STC occurs, the new configuration is applied in the third operation phase TOP, and for example, the primary component carrier 4 from the first operation phase FOP is used as the auxiliary component carrier 6, and the auxiliary component carrier 6 from the first operation phase FOP is used as the primary component carrier 4.

[0150] It should be noted that activation of Radio Link Monitoring (RLM) on auxiliary component carrier 6 can be performed during the third operational phase TOP to avoid the additional power consumption caused by activating RLM on both carriers for the entire duration of the timer. In either case, the new primary component carrier 4 on the second frequency band SFB is now used to transmit signaling data SD, and this process can be deactivated. Otherwise, the old configuration is applied, and signaling data SD is transmitted using the primary component carrier 4 from the first operational phase FOP on the first frequency band FFB.

[0151] Note: The process described above does not describe the change of the security key, nor the random access procedure used for synchronization to the secondary component carrier. For example, a radio link control data (RRC) reconfiguration with synchronization can be performed, depending on, for example, the additional / incremental configuration requirements between the primary component carrier 4 and the new primary component carrier 4. The radio link control data (RRC) reconfiguration process with synchronization requires a random access procedure for the new primary component carrier 4.

[0152] For example, Figure 4 shows a flowchart of the coordination between user equipment 1 according to the present invention and wireless network node 2 according to the present invention regarding different communication operation modes FOM, SOM, TOM.

[0153] According to some embodiments, user equipment 1 is configured to transmit capability information CAI to one of radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the capability information CAI indicates that user equipment 1 is capable of operating in a second operation mode (SOM) and a third operation mode (TOM).

[0154] According to some embodiments, user equipment 1 is configured to receive trigger information TIN from one of radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the trigger information TIN indicates a first trigger condition (FTC) and / or a second trigger condition (STC).

[0155] According to some embodiments, user equipment 1 is configured to send trigger acknowledgment information TCI to one of radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the trigger acknowledgment information TCI indicates that trigger information TIN has been received by user equipment 1.

[0156] According to some embodiments, user equipment 1 is configured to receive selection information SIN from one of radio network nodes 2 via one of the primary component carriers 4 during a first operation phase (FOP), wherein the selection information SIN indicates which auxiliary component carrier 6 in the second component carrier group 5 is the auxiliary component carrier 8 used for selection of the second operation mode (SOM), or wherein the selection information SIN indicates the condition for selecting the auxiliary component carrier 8 for the second operation mode (SOM).

[0157] The selection information SIN indicates the selection condition used by user equipment 1 when selecting the auxiliary component carrier 6 of the second component carrier group 5 for the second operating mode SOM.

[0158] According to some embodiments, user equipment 1 is configured to send a selection acknowledgment information (SCI) to one of the radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the selection acknowledgment information (SCI) indicates that selection information (SIN) has been received by user equipment 1.

[0159] According to some embodiments, user equipment 1 is configured to receive configuration information CIN from one of radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the configuration information CIN indicates the configuration of the auxiliary component carrier 8 for the selection of the second operation mode (SOM).

[0160] The configuration information CIN indicates the required configuration information for the auxiliary component carrier 8 and / or all auxiliary component carriers 6 in the second component carrier group 5 for the selection of the second operating mode SOM.

[0161] According to some embodiments, user equipment 1 is configured to send configuration confirmation information CCI to one of radio network nodes 2 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the configuration confirmation information CCI indicates that configuration information CIN has been received by user equipment 1.

[0162] According to some embodiments, user equipment 1 is configured to detect the occurrence of a first trigger condition FTC in a first operation phase (FOP), and if the occurrence of the first trigger condition FTC is detected, to initiate the second operation phase (SOP) by switching to a second operation mode (SOM) and by sending a first handover information FSI to one of the primary component carriers 4, wherein the first handover information FSI indicates that user equipment 1 is in the second operation mode (SOM).

[0163] According to some embodiments, user equipment 1 is configured to detect the occurrence of a second triggering condition STC in the second operating phase SOP at the end of the time interval from the start of the second operating phase SOP (BSOP).

[0164] According to some embodiments, user equipment 1 is configured to initiate a third operating phase TOP by switching to a third operating mode TOM and sending a second handover information SSI to one of the main component carriers 4 via one of the main component carriers 4, if the ETIV detects the occurrence of a second trigger condition STC at the end of the time interval. The second handover information SSI indicates that user equipment 1 is in the third operating mode TOM.

[0165] According to some embodiments, user equipment 1 is configured to initiate a fourth operation phase FOOP after the second operation phase SOP by switching to a first operation mode FOM and sending a third handover information TSI via one of the main component carriers 4 to one of the wireless network nodes 2 if the second trigger condition STC is not detected by ETIV at the end of the time interval, wherein the third handover information TSI indicates that user equipment 1 is in the first operation mode FOM.

[0166] According to some embodiments, the wireless network node 2 is configured to receive capability information CAI from user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the capability information CAI indicates that user equipment 1 is capable of operating in the second operation mode (SOM) and the third operation mode (TOM).

[0167] According to some embodiments, the wireless network node 2 is configured to transmit trigger information TIN to user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the trigger information TIN indicates a first trigger condition (FTC) and / or a second trigger condition (STC).

[0168] According to some embodiments, the wireless network node 2 is configured to receive trigger acknowledgment information TCI from user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the trigger acknowledgment information TCI indicates that trigger information TIN has been received by user equipment 1.

[0169] According to some embodiments, the wireless network node 2 is configured to send selection information SIN to the user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the selection information SIN indicates which auxiliary component carrier 6 in the second component carrier group 5 is the auxiliary component carrier 8 used for the selection of the second operation mode (SOM), or wherein the selection information SIN indicates the condition for selecting the auxiliary component carrier 8 for the second operation mode (SOM).

[0170] The selection information SIN indicates the selection condition used by user equipment 1 as input when selecting the auxiliary component carrier 6 of the second component carrier group 5 for the second operating mode SOM.

[0171] According to some embodiments, the wireless network node 2 is configured to receive a selection acknowledgment information (SCI) from the user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the selection acknowledgment information (SCI) indicates that the selection information (SIN) has been received by the user equipment 1.

[0172] According to some embodiments, the wireless network node 2 is configured to send configuration information CIN to the user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the configuration information CIN indicates the configuration of the auxiliary component carrier 8 for the selection of the second operation mode (SOM).

[0173] The configuration information CIN indicates the required configuration information for the auxiliary component carrier 8 and / or all auxiliary component carriers 6 of the second component carrier group 5 for the selection of the second operating mode SOM.

[0174] According to some embodiments, the wireless network node 2 is configured to receive configuration confirmation information CCI from user equipment 1 via one of the primary component carriers 4 during the first operation phase (FOP), wherein the selection confirmation information SCI indicates that configuration information CIN has been received by user equipment 1.

[0175] According to some embodiments, the wireless network node 2 is configured to switch to a second operating mode SOM after receiving a first handover information FSI from user equipment 1 via one of the primary component carriers 4, wherein the first handover information FSI indicates that user equipment 1 is in the second operating mode SOM.

[0176] According to some embodiments, the wireless network node 2 is configured to switch to a third operating mode TOM after receiving a second handover information SSI from user equipment 1 via one of the primary component carriers 4, wherein the second handover information SSI indicates that user equipment 1 is in the third operating mode TOM.

[0177] According to some embodiments, the wireless network node 2 is configured to switch to a first operating mode FOM in a fourth operating phase FOOP after receiving a third handover information TSI from user equipment 1 via one of the primary component carriers 4, wherein the third handover information TSI indicates that user equipment 1 is in the first operating mode FOM.

[0178] As an example, Figure 5 shows another flowchart of the coordination of different operating modes FOM, SOM, TOM between user equipment 1 according to the present invention and wireless network node 2 according to the present invention regarding communication.

[0179] To illustrate the proposed mechanism, Figures 4 and 5 show a basic example with two component carriers. The example relates to 5G NR technology. However, similar embodiments are possible in other radio access technologies, such as 4G LTE or Wi-Fi.

[0180] Initially, User Equipment 1 connects to Radio Network Node 2 (a 5G base station in this example) on Primary Component Carrier 4. With User Equipment 1 connected to Radio Network Node 2, all associated signaling data (SD) is processed via Primary Component Carrier 4. This signaling data (SD) may include Physical Layer Data (PHY), Medium Access Layer Data (MAC), Packet Data Convergence Protocol Data (PDCP), and Radio Link Control Data (RRC). At this point, User Equipment 1 can send Carrier Aggregation Capability Information (ACI) to Radio Network Node 2 to indicate its support for carrier aggregation.

[0181] User Equipment 1 can now receive Carrier Aggregation Activation Information AAI from Radio Network Node 2, thereby activating carrier aggregation by activating one or more auxiliary (additional) component carriers 6 using signaling data SD (Media Access Layer Data Control Unit (MAC-CE)). This will initiate the first operational phase FOP using the first operating mode FOM and will increase the total bandwidth / data rate of user data UD. The signaling data SD, which handles the connection between User Equipment 1 and Radio Network Node 2 (e.g., management of signaling and data radio bearers, security processing, and other functions performed by Radio Link Control Data (RRC)), is routed / operated via the primary component carrier 4.

[0182] Furthermore, radio link monitoring can be activated only on the primary component carrier 4. It should be noted that in this case, the wireless network node 2 can determine the link quality on the secondary component carrier 6 through the channel state information (CSI) reported by user equipment 1 and through measurements of the sounding reference signal (SRS) of user equipment 1.

[0183] User Equipment 1 can monitor the Physical Downlink Data Channel (PDCCH) on the primary component carrier 4 for downlink scheduling allocation, uplink scheduling authorization, power control, etc. The PDCCH can also be monitored on the secondary component carrier 6, unless cross-carrier scheduling is defined for a specific secondary component carrier 6. In this case, the PDCCH of the scheduled secondary component carrier 6 is monitored on the primary component carrier 4. On the uplink, User Equipment 1 can use the Physical Uplink Control Channel (PUCCH) on the primary component carrier 4 for reception acknowledgments, scheduling requests, and channel state information for all carriers. Considering only two carriers, PDCCH transmission may only be required on the primary component carrier 4.

[0184] In addition, user equipment 1 can send capability information (CAI) to wireless network node 2 to indicate that it supports the second operating mode (SOM) and the third operating mode (TOM).

[0185] Now, wireless network node 2 can preconfigure user equipment 1 using trigger information TIN including a first trigger condition FTC and / or a second trigger condition STC, selection information SIN describing which auxiliary component carrier 6 is selected as auxiliary component carrier 8, and required configuration information CIN. In the case of multiple primary component carriers 4 being active, the selection information SIN also describes which of the primary component carriers 4 is the selected primary component carrier 7. For example, the first or second trigger condition FTC, STC can be configured with x instances, where timers, specifically radio link failure timers, have been started but have not expired within y seconds. In the case of beam-based operation, the trigger condition FTC, STC can be based on multiple beam failures that would cause user equipment 1 to declare a radio link failure. Another trigger condition FTC, STC could be that the selected auxiliary component carrier 8 becomes better offset than the selected primary component carrier 7, or the selected primary component carrier 7 becomes worse than a first threshold while the selected auxiliary component carrier 8 becomes better than a second threshold. The trigger conditions FTC, STC can be signaled to user equipment 1 using a radio resource control reconfiguration message, as shown in Figure 5. The Radio Resource Control (RRC) reconfiguration command can also carry all the configuration information (CIN) required for physical layer data—physical downlink data channels and physical uplink channels, as well as medium access layer data and radio link control data. User Equipment 1 uses Triggered Acknowledgment (TCI) messages, such as RRC_Reconfiguration_CPCAD_Acknowledgment, to acknowledge receipt of the new configuration.

[0186] This process can then be activated by the wireless network node 2 using, for example, newly defined medium access layer data control unit information. At this point, user equipment 1 monitors the quality of the auxiliary component carriers 6 and reports them back, for example, using channel state information (CSI) and any additional specified reports. Assuming user equipment 1 can connect to multiple auxiliary component carriers 6, additional monitoring and performance comparisons can be performed between the carriers to determine the most suitable auxiliary component carrier 8 to be selected. Considerations may include statistics regarding channel quality, preferences for enabled physical downlink data channel monitoring on auxiliary component carriers 6 (i.e., auxiliary component carriers not scheduled on different carriers), and physical uplink channel resources on the auxiliary component carriers or in the timing advance group to which the auxiliary component carrier 6 belongs (in the case of user equipment 1 with multiple timing advance capabilities).

[0187] Once the first trigger condition FTC is met, User Equipment 1 can apply a new configuration NCO (Physical Layer Data, Medium Access Layer Data, and Radio Link Control Resources, including Auxiliary Radio Link Control Entities, if applicable). Once the new configuration NCO is applied, User Equipment 1 notifies Radio Network Node 2 using the first handover information FSI. User Equipment 1 also starts a new Radio Link Control Allocation Timer so that the second operating phase SOP using the second operating mode SOM can be initiated.

[0188] During the second operating phase (SOP) in the second operating mode, both the selected primary component carrier 7 and the selected secondary component carrier 8 are capable of carrying signaling data SD, such as radio resource control related information and measurement reports, between user equipment 1 and wireless network node 2. However, at this time, it is the signaling data SD carried by the selected primary component carrier 7, rather than the signaling data carried by the selected secondary component carrier 8, used to coordinate the connection between user equipment 1 and wireless network node 2.

[0189] If the timer expires at the end of the time interval (ETIV), and if the second trigger condition (STC) is still met, then user equipment 1 activates the signaling data (SD) on the selected auxiliary component carrier 8, causing the selected auxiliary component carrier 8 to be removed from the second component carrier group 5 and added to the first component carrier group 3, thus becoming the new primary component carrier 4 in the third operating mode during the third operating phase (TOP).

[0190] User equipment 1 can send a second handover information SSI on the new primary component carrier 4, so that wireless network node 2 can also switch to the third operating mode TOM during the third operating phase TOP.

[0191] In this scenario, the user equipment can also receive reconfiguration information (RCI) from wireless network node 2 based on the latest measurement report, which includes additional, incremental, or any applicable configuration, and can perform a reconfiguration process (RCP).

[0192] If the timer expires at the end of the time interval (ETIV), and if the second trigger condition (STC) is no longer met, then user equipment 1 further returns to the first operation mode (FOM) for the fourth operation phase (FOOP).

[0193] The third handover information (TSI) can be sent by user equipment 1 on the old primary component carrier 4, so that wireless network node 2 can also switch to the first operating mode (FOM) during the fourth operation phase (TOOP).

[0194] In this case, the user equipment can further receive the original reconfiguration information (ORI) from the wireless network node 2 and perform the reconfiguration process (RCP).

[0195] After establishing the third operating mode (TOM) or the first operating mode (FOM), the wireless network node 2 can send deactivation information (DEI), such as the media access layer data control unit, to the user equipment 1 to deactivate the process.

[0196] Figure 6 The schematic diagram illustrates a method for selecting one or more primary component carriers 4 for a third operating mode TOM for communication between a user equipment 1 according to the invention and a wireless network node 2 according to the invention.

[0197] According to some embodiments of user equipment 1, the first trigger condition FTC and / or the second trigger condition STC are related to the physical quality of at least some primary component carriers 4 and / or the physical quality of at least some secondary component carriers 6.

[0198] According to some embodiments of the wireless network node 2, the first trigger condition FTC and / or the second trigger condition STC are related to the physical quality of at least some primary component carriers 4 and / or the physical quality of at least some secondary component carriers 6.

[0199] To select the primary component carrier 4 for exchanging signaling data SD in the third operating mode TOM, several layer 1 (physical layer) measurements may be required. Component carriers 4 and 6 available in the first operating mode FOM or the second operating mode SOM can be rated according to several metrics. In this regard, any statistical measure of channel quality that is adopted can be used. Simple instantaneous metrics could be signal-to-interference-plus-noise ratio (SINR), reference signal received power (RSRP), or reference signal received quality (RSRQ). Component carriers 4 and 6 with higher SINR, RSRP, or RSRQ should be beneficial for exchanging signaling data SD. The angular spread of available component carriers 4 and 6 can also be considered. To enhance recovery from complete loss of signaling data connectivity due to environmental effects such as fading or unintentional or intentional interference (nearby cells, congestion), component carriers 4 and 6 with large angular distances should be used. Similarly, since small-scale fading typically affects component carriers 4 and 6 with similar frequencies in a similar manner, component carriers 6 and 4 with large frequency spreads should be combined.

[0200] In addition to instantaneous measurements, the temporal evolution of several metrics can be considered when selecting the primary component carrier 4 in the third operating mode. For example, if a component carrier 4 or 6 repeatedly fades between very good and very poor RSRQ during the first operating mode FOM, it should not be used as the primary component carrier 4 in the third operating mode TOM, even if it sometimes has better reference signal reception quality than another component carrier 4 or 6. Such component carriers 4 or 6 should be blacklisted in the signaling data SD. Similarly, component carriers 4 or 6 that exhibit consistently good metrics during the first operating mode FOM with periodic, brief degradation can be whitelisted, even if these metrics briefly indicate departure conditions.

[0201] Measurement results can be filtered using weighted or moving averages or any other statistical methods.

[0202] The physical layer must periodically compile and update the list of possible component carriers 4 and 6 (periodic reports) and expose it to higher layers along with quality metrics, most importantly to the media access control layer, in order to select the primary component carrier 4. Measurements can also be triggered by higher layers (trigger reports).

[0203] Component carriers 4 and 6 can be classified based on the following indicators.

[0204] • Metrics can be measured / reported.

[0205] • Metrics can be provided / requested.

[0206] • Indicators can be fixed / dynamic / updated / corrected.

[0207] To prevent rapid, periodic reconfiguration of the primary component carrier 4, its selection should be based on hysteresis indicators. The threshold for selecting component carriers 4 and 6 to include in the primary component carrier list is... Figure 6 The "event condition" in the context should be less than the threshold at which it is no longer used. Figure 6 The "leaving conditions" in the text are slightly higher.

[0208] According to certain implementation requirements, embodiments of the device and system of the present invention can be implemented in hardware and / or software. This implementation can be performed using a digital storage medium, such as a floppy disk, DVD, Blu-ray disc, CD, ROM, PROM, EPROM, EEPROM, or FLASH memory, on which electronically readable control signals are stored, which cooperate (or are capable of cooperating) with a programmable computer system to perform one or more or all of the functions of the device or system of the present invention.

[0209] In some embodiments, a programmable logic device (e.g., a field-programmable gate array) may be used to perform one or more or all of the functions of the devices and systems described herein. In some embodiments, a field-programmable gate array may cooperate with a microprocessor to perform one or more or all of the functions of the devices and systems described herein.

[0210] Although some aspects have been described in the context of the apparatus, it is clear that these aspects also represent a description of the corresponding method, where a block or device corresponds to a method step or a feature of a method step. Similarly, aspects described in the context of a method step also represent a description of a corresponding block or item or feature of the corresponding apparatus.

[0211] Depending on certain implementation requirements, embodiments of the method of the present invention may be implemented using an apparatus comprising hardware and / or software. Implementation may be performed using a digital storage medium, such as a floppy disk, DVD, Blu-ray disc, CD, ROM, PROM, EPROM, EEPROM, or FLASH memory, on which electronically readable control signals are stored, the digital storage medium cooperating (or capable of cooperating) with a programmable computer system to perform the corresponding method.

[0212] Depending on certain implementation requirements, embodiments of the method of the present invention may be implemented using an apparatus including hardware and / or software.

[0213] Some or all of the steps of the method may be performed by (or using) hardware devices, such as microprocessors, programmable computers, or electronic circuits. One or more of the most important method steps may be performed by such devices.

[0214] Some embodiments of the invention include a data carrier having electronically readable control signals that are capable of cooperating with a programmable computer system to implement one of the methods described herein.

[0215] Typically, embodiments of the present invention can be implemented as a computer program product having program code that, when operated on a computer, can be used to perform one of the methods. For example, the program code can be stored on a machine-readable carrier wave.

[0216] Other embodiments include a computer program for performing one of the methods described herein, the computer program being stored on a machine-readable carrier or a non-transitory storage medium.

[0217] Further embodiments include processing means, such as a computer or a programmable logic device, particularly a processor that includes hardware configured or adapted to perform one of the methods described herein.

[0218] Further embodiments include a computer on which a computer program for performing one of the methods described herein is installed.

[0219] Typically, these methods are advantageously performed by any device, including hardware and / or software.

[0220] While the invention has been described with reference to several embodiments, variations, arrangements, and equivalents exist that fall within the scope of the invention. It should also be noted that many alternative methods and combinations are available for implementing the methods and combinations of the invention. Therefore, the appended claims are intended to encompass all such variations, arrangements, and equivalents that fall within the true spirit and scope of the invention.

[0221] Figure label:

[0222] 1 User Equipment

[0223] 2 wireless network nodes

[0224] 3 First component carrier group

[0225] 4 main component carriers

[0226] 5 Second component carrier group

[0227] 6 auxiliary component carriers

[0228] 7. Selected main component carrier

[0229] 8 Selected auxiliary component carriers

[0230] SD signaling data

[0231] UD user data

[0232] FOM First Operation Mode

[0233] FOP First Operational Phase

[0234] SOM Second Operation Mode

[0235] SOP Second Operational Phase

[0236] FTC First Trigger Condition

[0237] TOM Third Operating Mode

[0238] TOP third operation phase

[0239] STC Second Trigger Condition

[0240] FFB First Band

[0241] SFB second band

[0242] CAI Capability Information

[0243] TIN Trigger Information

[0244] TCI trigger confirmation message

[0245] SIN Selection Information

[0246] SCI Selection Confirmation Information

[0247] CIN Configuration Information

[0248] CCI configuration confirmation information

[0249] FSI First Handover Information

[0250] End of ETIV time interval

[0251] Start of the second phase of BSOP

[0252] SSI Second Handover Information

[0253] FOOP Fourth Operation Phase

[0254] TSI Third Switching Information

[0255] ACI carrier aggregation capability information

[0256] AAI carrier aggregation activation information

[0257] NCO New Configuration

[0258] RCI reconfiguration information

[0259] ORI Original Reconfiguration Information

[0260] DEI Deactivation Information

[0261] References:

[0262] [1] "TS 38.300v15.0 NR and NG-RAN Overall Description," 3GPP, 2018.

[0263] [2] "TS 38.213v15.0 Physical layer procedures for control," 3GPP, 2017.

[0264] [3] "TS 38.321v15 Medium Access Control (MAC) protocol specification," 3GPP, 2017.

[0265] [4]E.Dahlman,S.Parkvall and J.Skold,LTE Radio Access:An Overview,”4G:LTE / LTE-Advanced for Mobile Broadband(1st.ed.),”Academic Press,Inc.,USA.,2011.

[0266] [5]E.Dahlman,S.Parkvall and J.Skold,Radio-Interface Architecture,”4G:LTE / LTE-Advanced for Mobile Broadband(1st.ed.),”Academic Press,Inc.,USA.,2011.

[0267] [6]E.Dahlman,S.Parkvall and J.Skold,Physical Transmission Resources,”4G:LTE / LTE-Advanced for Mobile Broadband(1st.ed.)”,Academic Press,Inc.,USA.,2011.

[0268] [7]E.Dahlman,S.Parkvall and J.Skold,Spectrum and RF Characteristics,”4G:LTE / LTE-Advanced for Mobile Broadband(1st.ed.)”,Academic Press,Inc.,USA.,2011.

[0269] [8]“TS 38.300v16 NR and NG-RAN Overall Description,”3GPP,2020.

[0270] [9]E.Dahlman,S.Parkvall and J.Skold,Spectrum for 5G,“5G NR:The NextGeneration Wireless Access Technology(1st.ed.)”,.Academic Press,Inc.,USA.,2018.

[0271]

[10] E.Dahlman,S.Parkvall and J.Skold,Radio-Interface Architecture,“5GNR:The Next Generation Wireless Access Technology(1st.ed.)”,Academic Press,Inc.,USA.,2018.

[0272]

[11] E.Dahlman,S.Parkvall and J.Skold,Overall Transmission Structure,“5G NR:The Next Generation Wireless Access Technology(1st.ed.)”,.AcademicPress,Inc.,USA.,2018.

[0273]

[12] E.Dahlman,S.Parkvall and J.Skold,Channel Sounding,“5G NR:The NextGeneration Wireless Access Technology(1st.ed.)”,Academic Press,Inc.,USA.,2018.

[0274]

[13] E.Dahlman,S.Parkvall and J.Skold,Physical-Layer ControlSignalling,“5G NR:The Next Generation Wireless Access Technology(1st.ed.)”,.Academic Press,Inc.,USA.,2018.

[0275]

[14] E.Dahlman,S.Parkvall and J.Skold,Retransmission Protocols,“5G NR:The Next Generation Wireless Access Technology(1st.ed.)”,.Academic Press,Inc.,USA.,2018.

[0276]

[15] E.Dahlman,S.Parkvall and J.Skold,Scheduling,“5G NR:The NextGeneration Wireless Access Technology(1st.ed.)”,.Academic Press,Inc.,USA.,2018.

[0277]

[16] A.Zaidi et al.,“5G Physical Layer:Principles,Models andTechnology Components(1st.ed.),”Academic Press,Inc.,USA.,2018.

[0278]

[17] K.Takeda et al.,“Understanding the Heart of the 5G Air Interface:An Overview of Physical Downlink Control Channel for 5G New Radio(NR),”2019.

[0279]

[18] S.Ahmadi,5G NR,New Radio Access Layer 2 / 3 Aspects and SystemOperation,“Architecture,Technology,Implementation,and Operation of 3gpp NewRadio Standards.“,Academic Press,2019.

[0280]

[19] S.Ahmadi,5G NR,New Radio Access Physical Layer Aspects(Part 1),“Architecture,Technology,Implementation,and Operation of 3gpp New RadioStandards“,Academic Press,2019.

[0281]

[20] S.Ahmadi,5G NR,New Radio Access Physical Layer Aspects(Part 2),“Architecture,Technology,Implementation,and Operation of 3gpp New RadioStandards“,Academic Press,2019.

[0282]

[21] S.Ahmadi,5G NR,Operation in Unlicensed and Shared Spectrum,“Architecture,Technology,Implementation,and Operation of 3gpp New RadioStandards.“,Academic Press,2019.

[0283]

[22] “TS 38.213 v16.1 Physical layer procedures for control,”2020.

[0284]

[23] “TS 38.321 v16.0 Medium Access Control(MAC)protocolspecification,”3GPP,2020.

[0285]

[24] A.Aijaz,“Packet Duplication in Dual Connectivity Enabled 5GWireless Networks:Overview and Challenges,”IEEE Communications StandardsMagazine,pp.20-28,2019.

[0286]

[25] S.Lagen and et al.,“New Radio Beam-Based Access to UnlicensedSpectrum:Design Challenges and Solutions,”IEEE Communications Surveys&Tutorial,pp.8-37,2020.

[0287]

[26] “TS 37.340 v16.1 E-UTRA and NR Multi-connectivity Stage 2,”3GPP,2020.

[0288]

[27] “TS 38.331 v16.0 NR Radio Resource Control(RRC)protocolspecification,”3GPP,2020.

[0289]

[28] “R2-1913296 Summary of email discussion 107#31 NR DCCA Fast MCGRecovery,”2019.

[0290]

[29] Ericsson,“R2-1910273 Fast MCG Recovery via SCells,”2019.

[0291]

[30] Nokia,“R2-1909111 NR DCCA Fast Recovery with CA,”2019.

[0292]

[31] “TS 38.101-1 v16.2 User Equipment(UE)radio transmission andreception Part 1:Range 1Standalone,”3GPP,2019.

[0293]

[32] “TS 38.533 v16.2 User Equipment(UE)conformance specificationRadio Resource Management(RRM),”3GPP,2019.

Claims

1. A user equipment for communicating via a wireless network; in, The user equipment (1) is configured to communicate with one or more wireless network nodes (2) of the wireless network simultaneously through a first component carrier group (3) including one or more primary component carriers (4) and a second component carrier group (5) including one or more auxiliary component carriers (6); User equipment (1) is configured as follows: Part of the signaling data is exchanged with one or more wireless network nodes (2) via each primary component carrier (4), and The user data is exchanged with one or more wireless network nodes (2) via each primary component carrier (4) and via each secondary component carrier (6); The user equipment (1) is configured to communicate with one or more wireless network nodes (2) of the wireless network using different operating modes; User equipment (1) is configured as follows: In the first operation phase, in the first operation mode of the operation mode, only a portion of the signaling data is exchanged via the main component carrier (4); User equipment (1) is configured as follows: In the second operation phase following the first operation phase, in the second operation mode of the operation mode, the main component carrier (7) selected by the main component carrier of the first component carrier group (3) and the auxiliary component carrier (8) selected by the auxiliary component carrier (6) of the second component carrier group (5) are used to exchange a portion of the signaling data of the selected main component carrier (7), wherein the second operation phase is initiated when the first triggering condition occurs. In the third operation phase following the second operation phase, the user equipment (1) is configured to use an auxiliary component carrier (8) selected from the second operation phase as one of the main component carriers (4) in the third operation mode of the operation mode, such that in the third operation phase, the auxiliary component carrier (8) selected from the second operation phase is added to the main component carrier (4) of the first component carrier group (3) and removed from the auxiliary component carrier (6) of the second component carrier group (5), wherein the third operation phase is initiated in the event of a second triggering condition.

2. The user equipment according to claim 1, wherein the user equipment (1) is configured to use a primary component carrier (7) selected from the second operation phase as one of the auxiliary component carriers (6) in the third operation mode of the operation mode in the third operation phase, such that the primary component carrier (7) selected from the second operation phase is added to the auxiliary component carrier (6) of the second component carrier group (5) and removed from the primary component carrier (4) of the first component carrier group (3) in the third operation phase.

3. The user equipment according to claim 1, wherein the first triggering condition and / or the second triggering condition are related to the physical quality of at least some primary component carriers (4) and / or the physical quality of at least some auxiliary component carriers (6).

4. The user equipment according to claim 1, wherein the user equipment (1) is configured to transmit capability information to one of the radio network nodes (2) via a primary component carrier (4) during a first operation phase, wherein the capability information indicates that the user equipment (1) is capable of operating in a second operation mode and a third operation mode.

5. The user equipment according to claim 1, wherein the user equipment (1) is configured to receive trigger information from one of the radio network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein the trigger information indicates a first trigger condition and / or a second trigger condition.

6. The user equipment according to claim 5, wherein the user equipment (1) is configured to send trigger confirmation information to one of the wireless network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein the trigger confirmation information indicates that the trigger information has been received by the user equipment (1).

7. The user equipment according to claim 1, wherein the user equipment (1) is configured to receive selection information from one of the radio network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein, The selection information indicates which auxiliary component carrier (6) in the second component carrier group (5) is the auxiliary component carrier (8) used for the selection of the second operating mode, or the selection information indicates the condition for the auxiliary component carrier (8) selected for the second operating mode.

8. The user equipment according to claim 7, wherein the user equipment (1) is configured to send selection confirmation information to one of the radio network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein the selection confirmation information indicates that selection information has been received by the user equipment (1).

9. The user equipment according to claim 1, wherein the user equipment (1) is configured to receive configuration information from one of the radio network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein the configuration information indicates the configuration of the auxiliary component carrier (8) for the selection of a second operation mode.

10. The user equipment according to claim 9, wherein the user equipment (1) is configured to send configuration confirmation information to one of the radio network nodes (2) via one of the primary component carriers (4) during a first operation phase, wherein the configuration confirmation information indicates that the configuration information has been received by the user equipment (1).

11. The user equipment according to claim 1, wherein the user equipment (1) is configured to detect the occurrence of a first triggering condition in a first operation phase, and, if the occurrence of the first triggering condition is detected, initiate the second operation phase by switching to a second operation mode and by sending first switching information to one of the primary component carriers (4) to one of the wireless network nodes (2), wherein the first switching information indicates that the user equipment (1) is in the second operation mode.

12. The user equipment according to claim 1, wherein the user equipment (1) is configured to detect the occurrence of a second triggering condition in the second operation phase at the end of a time interval that begins from the start of the second operation phase.

13. The user equipment according to claim 12, wherein the user equipment (1) is configured to initiate a third operation phase if the occurrence of a second triggering condition is detected at the end of the time interval by switching to a third operation mode and by transmitting second switching information to one of the radio network nodes (2) via one of the primary component carriers (4), wherein, The second switching information indicates that the user equipment (1) is in the third operating mode.

14. The user equipment according to claim 12, wherein the user equipment (1) is configured to initiate a fourth operation phase following the second operation phase by switching to a first operation mode and by sending third switching information via one of the primary component carriers (4) to one of the wireless network nodes (2) if no second triggering condition is detected at the end of the time interval, wherein the third switching information indicates that the user equipment (1) is in the first operation mode.

15. A method for operating a user equipment (1) to communicate via a wireless network; in, The user equipment (1) is configured to communicate with one or more wireless network nodes (2) of the wireless network simultaneously through a first component carrier group (3) including one or more primary component carriers (4) and a second component carrier group (5) including one or more auxiliary component carriers (6); The user equipment (1) is configured to communicate with one or more wireless network nodes (2) of the wireless network using different operating modes; User equipment (1) is configured as follows: Part of the signaling data is exchanged with one or more wireless network nodes (2) via each primary component carrier (4), and The user data is exchanged with one or more wireless network nodes (2) via each primary component carrier (4) and via each secondary component carrier (6); The method includes the following steps: In the first operation phase, the user equipment (1) is operated in the first operation mode of the operation mode, wherein only a portion of the signaling data is exchanged via the main component carrier (4) in the first operation mode; In the second operation phase following the first operation phase, the user equipment (1) is operated in the second operation mode of the operation mode, wherein, in the second operation mode, part of the signaling data of the primary component carrier (7) selected by the primary component carrier (4) of the first component carrier group (3) is exchanged simultaneously by the selected primary component carrier (7) and the auxiliary component carrier (8) selected by the auxiliary component carrier (6) of the second component carrier group (5), wherein the second operation phase is initiated when the first triggering condition occurs; In the third operation phase following the second operation phase, the user equipment is operated in the third operation mode of the operation mode, wherein in the third operation mode, the auxiliary component carrier (8) selected from the second operation phase is used as one of the main component carriers (4), such that in the third operation phase, the auxiliary component carrier (8) selected from the second operation phase is added to the main component carrier (4) of the first component carrier group (3) and removed from the auxiliary component carrier (6) of the second component carrier group (5), wherein the third operation phase is initiated in the event of a second triggering condition.

16. A computer program product having a computer program stored thereon for performing the method of claim 15 when run on a processor.

17. A wireless network node for connecting a user equipment (1) for communicating via a wireless network to a wireless network; in, The wireless network node (2) is configured to communicate with the user equipment (1) simultaneously via a first component carrier group (3) comprising one or more primary component carriers (4) and a second component carrier group (5) comprising one or more auxiliary component carriers (6); Among them, the wireless network node (2) is configured to communicate with the user equipment (1) using different operating modes; Among them, the wireless network node (2) is configured as follows: The portion of signaling data exchanged with user equipment (1) via each primary component carrier (4), and The user data is exchanged with the user equipment (1) via each primary component carrier (6) and via each secondary component carrier (6); Among them, the wireless network node (2) is configured as follows: In the first operation phase, in the first operation mode of the operation mode, only a portion of the signaling data is exchanged via the main component carrier (4); Among them, the wireless network node (2) is configured as follows: In the second operation phase following the first operation phase, in the second operation mode of the operation mode, the main component carrier (7) selected by the main component carrier (4) of the first component carrier group (3) and the auxiliary component carrier (8) selected by the auxiliary component carrier (6) of the second component carrier group (5) are simultaneously exchanged, wherein the second operation phase is initiated when the first triggering condition occurs. In the third operation phase following the second operation phase, the wireless network node (2) is configured to use an auxiliary component carrier (8) selected from the second operation phase as one of the main component carriers (4) in the third operation mode of the operation mode, such that in the third operation phase, the auxiliary component carrier (8) selected from the second operation phase is added to the main component carrier (4) of the first component carrier group (3) and removed from the auxiliary component carrier (6) of the second component carrier group (5), wherein the third operation phase is initiated in the event of a second triggering condition.

18. The wireless network node according to claim 17, wherein the wireless network node (2) is configured to use a primary component carrier (7) selected from the second operation phase as one of the auxiliary component carriers (6) in a third operation mode during a third operation phase, such that the primary component carrier (7) selected from the second operation phase is added to the auxiliary component carrier (6) of the second component carrier group (5) and removed from the primary component carrier (4) of the first component carrier group (3) during the third operation phase.

19. The wireless network node according to claim 17, wherein the first triggering condition and / or the second triggering condition are related to the physical quality of at least some primary component carriers (4) and / or the physical quality of at least some secondary component carriers (6).

20. The wireless network node of claim 17, wherein the wireless network node (2) is configured to receive capability information from the user equipment (1) via one of the primary component carriers (4) during a first operation phase, wherein the capability information indicates that the user equipment (1) is capable of operating in a second operation mode and a third operation mode.

21. The wireless network node according to claim 17, wherein the wireless network node (2) is configured to transmit trigger information to the user equipment (1) via one of the primary component carriers (4) during a first operation phase, wherein the trigger information indicates a first trigger condition and / or a second trigger condition.

22. The wireless network node according to claim 21, wherein the wireless network node (2) is configured to receive trigger confirmation information from the user equipment (1) via one of the primary component carriers (4) during a first operation phase, wherein the trigger confirmation information indicates that the trigger information has been received by the user equipment (1).

23. The wireless network node according to claim 17, wherein the wireless network node (2) is configured to transmit selection information to the user equipment (1) via one of the primary component carriers (4) during the first operation phase, wherein, The selection information indicates which auxiliary component carrier (6) in the second component carrier group (5) is the auxiliary component carrier (8) used for the selection of the second operating mode, or the selection information indicates the condition for the auxiliary component carrier (8) selected for the second operating mode.

24. The wireless network node of claim 23, wherein the wireless network node (2) is configured to receive selection confirmation information from the user equipment (1) via one of the primary component carriers (4) in a first operation phase, wherein the selection confirmation information indicates that selection information has been received by the user equipment (1).

25. The wireless network node of claim 17, wherein the wireless network node (2) is configured to transmit configuration information to the user equipment (1) via one of the primary component carriers (4) during a first operation phase, wherein the configuration information indicates the configuration of the auxiliary component carrier (8) for the selection of a second operation mode.

26. The wireless network node of claim 25, wherein the wireless network node (2) is configured to receive configuration confirmation information from the user equipment (1) via one of the primary component carriers (4) during a first operation phase, wherein the selection confirmation information indicates that the configuration information has been received by the user equipment (1).

27. The wireless network node of claim 17, wherein the wireless network node (2) is configured to switch to a second operating mode after receiving first handover information from the user equipment (1) via one of the primary component carriers (4), wherein the first handover information indicates that the user equipment (1) is in the second operating mode.

28. The wireless network node of claim 17, wherein the wireless network node (2) is configured to switch to a third operating mode after receiving second handover information from the user equipment (1) via one of the primary component carriers (4), wherein the second handover information indicates that the user equipment (1) is in the third operating mode.

29. The wireless network node according to claim 17, wherein the wireless network node (2) is configured to switch to a first operating mode in a fourth operating phase following the second operating phase after receiving third handover information from the user equipment (1) via one of the primary component carriers (4), wherein, The third switching information indicates that the user equipment (1) is in the first operating mode.

30. A method for operating a wireless network node (2), wherein the wireless network node (2) connects a user equipment (1) for communicating via a wireless network to the wireless network; in, The wireless network node (2) is configured to communicate with the user equipment (1) simultaneously via a first component carrier group (3) comprising one or more primary component carriers (4) and a second component carrier group (5) comprising one or more auxiliary component carriers (6); Among them, the wireless network node (2) is configured to communicate with the user equipment (1) using different operating modes; Among them, the wireless network node (2) is configured as follows: The portion of signaling data exchanged with user equipment (1) via each primary component carrier (4), and The user data is exchanged with the user equipment (1) via each primary component carrier (4) and via each secondary component carrier (6); The method includes the following steps: In the first operation phase, the wireless network node (2) operates in the first operation mode of the operation mode, wherein only a portion of the signaling data is exchanged via the main component carrier (4) in the first operation mode; In the second operation phase following the first operation phase, the wireless network node (2) operates in the second operation mode of the operation mode, wherein, in the second operation mode, part of the signaling data of the primary component carrier (7) selected by the primary component carrier (4) of the first component carrier group (3) is exchanged simultaneously by the selected primary component carrier (7) and the auxiliary component carrier (8) selected by the auxiliary component carrier (6) of the second component carrier group (5), wherein the second operation phase is initiated when the first triggering condition occurs; The third operation phase following the second operation phase operates the wireless network node (2) in the third operation mode of the operation mode, wherein in the third operation mode, the auxiliary component carrier (8) selected from the second operation phase is used as one of the main component carriers (4), such that in the third operation phase, the auxiliary component carrier (8) selected from the second operation phase is added to the main component carrier (4) of the first component carrier group (3) and removed from the auxiliary component carrier (6) of the second component carrier group (5), wherein the third operation phase is initiated in the event of a second triggering condition.

31. A computer program product having a computer program stored thereon for performing the method of claim 30 when run on a processor.

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