A non-terrestrial network based beam dtx implementation method

Abstract

The application discloses a kind of based on non-ground network's beam DTX implementation method, introduce beam DTX on the basis of cell DTX, including the following steps: S-gNB according to the actual traffic load of different wave position, configure different beam DTX parameters, to realize flexible and efficient energy saving and resource optimization.The application method is by accurate control beam transmission state, beam DTX can substantially reduce the energy consumption of satellite under the premise of guaranteeing basic communication demand, realize significant energy saving effect.In addition, the introduction of beam DTX enables the system to dynamically adjust the transmission strategy according to the actual traffic load of different beams, which is beneficial to the more reasonable allocation of system resources (such as spectrum, power, etc.) according to actual demand, improving resource utilization efficiency.The application can be widely applied in non-ground network communication field.

Description

Technical Field

[0001] This invention relates to the field of non-terrestrial network communication, and more particularly to a method for implementing beam DTX based on non-terrestrial networks. Background Technology

[0002] Discontinuous Transmission (DTX) is an important energy-saving technology in communication networks. It can optimize resource utilization and reduce energy consumption by dynamically adjusting the transmission status of base stations. It has been applied in 5G networks and Non-Terrestrial Networks (NTN).

[0003] In NTN scenarios, the beam diameter of a low-Earth orbit satellite's beam can typically reach 50km, and a cell can consist of one or more beams. Therefore, the coverage area of ​​an NTN cell is much larger than that of a terrestrial network cell. Cell DTX only supports cell-level energy saving, which has the disadvantages of insufficient configuration flexibility and poor energy-saving effect in NTN scenarios. For example, in multiple beams of an NTN cell, some beams have frequent service data transmission, while other beams only have a small amount of service. However, since the cell DTX configuration of each beam within the cell is consistent, it cannot be flexibly configured, and cell DTX cannot achieve energy saving in this scenario. Summary of the Invention

[0004] In order to at least partially solve one of the technical problems existing in the prior art, the purpose of this invention is to provide a method, device and medium for beam DTX implementation based on non-terrestrial networks.

[0005] The first technical solution adopted in this invention is:

[0006] A method for implementing beam DTX based on non-terrestrial networks introduces beam DTX on the basis of cell DTX, including the following steps:

[0007] S-gNB configures different beam DTX parameters according to the actual service load of different wavebands to achieve flexible and efficient energy saving and resource optimization.

[0008] Furthermore, the S-gNB is configured with different beam DTX parameters according to the actual service load of different frequency positions, including:

[0009] S-gNB provides flexible DTX configuration for different beam positions within the same cell by configuring beamDTX-DRX-Config in ServingCellConfigCommon to indicate beam DTX.

[0010] In ServingCellConfigCommon, beamDTX-DRX-Config is used as the SSB index for beam DTX.

[0011] Furthermore, when beamDTX-DRX-Config is not configured, cellDTX-DRX can be configured, activated, and deactivated normally; when beamDTX-DRX-Config is configured, only the beam corresponding to the SSB configured in beamDTX-DRX-Config uses DTX / DRX.

[0012] Furthermore, the S-gNB indicates beam DTX by configuring beamDTX-DRX-Config in ServingCellConfigCommon, including:

[0013] The S-gNB sends an RRC Reconfiguration message to the UE in RRC connected state. The RRC Reconfiguration message includes ServingCellConfigCommon, and in ServingCellConfigCommon->beamDTX-DRX-Config, the SSB index corresponding to the beam that needs to activate DTX is configured.

[0014] After receiving the RRC Reconfiguration message, the UE compares the SSB index with the currently selected SSB index. If they match, the UE stops listening to the PDCCH during the inactive period of beam DTX, as required by beam DTX. If they do not match, the beam DTX configuration will not be activated.

[0015] Furthermore, the RRC Reconfiguration message also includes ServingCellConfig;

[0016] Configure the period and activity duration corresponding to the beam DTX on ServingCellConfig->CellDTX-DRX-Config-r18, and set CellDTX-DRX-Config to dtx or dtxdrx, and set CellDTX-DRX-activationStatus to activated.

[0017] Configure the starting position of the serving cell DCI Format2_9 on ServingCellConfig->positionInDCI-cellDTRX;

[0018] Configure ServingCellConfig->cellDTX-DRX-L1activation-r18 as enabled.

[0019] Furthermore, if the UE within the band position mapped by the SSB has completed the band DTX configuration, but the band DTX has been deactivated, when data traffic is low, the S-gNB can activate the band DTX separately for that band position through DCI to achieve energy saving.

[0020] Furthermore, the S-gNB activates the beam DTX separately for this wavelength via DCI, including:

[0021] Identify all connected UEs within the waveband mapped by the SSB;

[0022] The S-gNB sends DCI Format 2_9 via PDCCH, where the first 6 bits of the beam DTX / DRX indicator correspond to the SSB index, and the configuration is consistent with the beamDTX-DRX-Config corresponding to the SSB.

[0023] The UE receives DCI format 2_9 from the start position of DCI format 2_9.

[0024] The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

[0025] Furthermore, the UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration, including:

[0026] The first 6 bits of the beam DTX / DRX indicator are compared with the currently selected SSB index. If they match, and cellDTXDRXconfigType is configured as dtxdrx, beam DTX is activated when the beam DTX / DRX indicator bit is 10 or 11; if cellDTXDRXconfigType is configured as dtx, beam DTX is activated when the beam DTX / DRX indicator bit is 1.

[0027] Furthermore, if the UE within the band position mapped by the SSB has completed the band beam DTX configuration and has been activated, when data services increase, the S-gNB will activate the band beam DTX separately for that band position through the DCI.

[0028] Furthermore, the S-gNB deactivates the beam DTX for this wavelength individually via DCI, including:

[0029] Identify all connected UEs within the waveband mapped by the SSB;

[0030] The S-gNB sends DCI Format 2_9 via PDCCH, in which the first 6 bits of the beam DTX / DRX indicator are consistent with the beamDTX-DRX-Config corresponding to the SSB;

[0031] The UE receives DCI format 2_9 from the start position of DCI format 2_9.

[0032] The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

[0033] The second technical solution adopted in this invention is:

[0034] An electronic device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement a beam DTX implementation method based on a non-terrestrial network as described above.

[0035] The third technical solution adopted in this invention is:

[0036] A computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement a beam DTX implementation method based on a non-terrestrial network as described above.

[0037] The fourth technical solution adopted in this invention is:

[0038] A computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of a computer device can read the computer instructions from the computer-readable storage medium and execute the computer instructions to cause the computer device to perform the method described above.

[0039] The beneficial effects of this invention are: by introducing beam DTX, this invention can precisely control the transmission state of the beam, thereby significantly reducing the energy consumption of the satellite while ensuring basic communication needs, and achieving remarkable energy-saving effects. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following description is provided with accompanying drawings of the relevant technical solutions in the embodiments of the present invention or the prior art. It should be understood that the accompanying drawings described below are only for the purpose of clearly illustrating some embodiments of the technical solutions of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic diagram of a beam DTX implementation scenario based on NTN provided in an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of a beam DTX configuration based on NTN provided for an embodiment of the present invention;

[0043] Figure 3 A schematic diagram of the signaling process for a beam DTX configuration method based on NTN provided in an embodiment of the present invention;

[0044] Figure 4 A flowchart illustrating a beam DTX configuration method based on NTN provided in an embodiment of the present invention;

[0045] Figure 5 A schematic diagram of the signaling process for the DCI-based beam DTX activation and deactivation method provided in an embodiment of the present invention;

[0046] Figure 6 A schematic flowchart of the beam DTX activation method based on DCI provided in an embodiment of the present invention;

[0047] Figure 7 This is a flowchart illustrating the beam DTX deactivation method based on DCI provided in an embodiment of the present invention. Detailed Implementation

[0048] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The step numbers in the following embodiments are set only for ease of explanation, and there is no limitation on the order between the steps. The execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0049] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0051] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0052] Terminology Explanation:

[0053] DTX: Discontinuous Transmission.

[0054] DRX: Discontinuous Reception.

[0055] NTN: Non-Terrestrial Network.

[0056] SSB: Synchronization Signal Block.

[0057] S-gNB: Satellite-gNodeB, a satellite-based base station.

[0058] UE: User Equipment.

[0059] PCI: Physical Cell Identity.

[0060] RRC: Radio Resource Control.

[0061] DCI: Downlink Control Information.

[0062] To address the existing technical problems, this invention introduces beam DTX to solve them. Based on cell DTX, beam DTX supports individual DTX parameters for beam configurations of different SSB (Synchronization Signal Block) mappings, thereby improving the energy efficiency of spaceborne base stations in NTN scenarios and enabling flexible configuration of DTX modes for different wavelengths.

[0063] In this invention, Cell DTX refers to a network energy-saving technology introduced in 3GPP R18. The Beam DTX introduced in this invention is based on Cell DTX, and its parameters are also based on Cell DTX. Therefore, the original Cell DTX mentioned in this invention refers to the configuration of Cell DTX, which originally resulted in Cell DTX, but due to the influence of the newly introduced parameters, the actual effect is Beam DTX. The original Cell DTX parameters refer to the parameters originally configured for Cell DTX implementation, but these parameters are actually used for Beam DTX implementation. Furthermore, since Beam DTX is based on Cell DTX, in addition to the DCI-based Beam DTX activation and deactivation method proposed in this embodiment, the original Cell DTX activation and deactivation methods in the protocol (other than those using DCI) are still applicable to the activation and deactivation of Cell DTX and Beam DTX. For example, you can set CellDTX-DRX-activationStatus to deactivated to deactivate an activated cell DTX or beam DTX; or you can set CellDTX-DRX-activationStatus to activated to activate an inactive cell DTX or beam DTX.

[0064] This invention aims to introduce a beam-based DTX mode in NTN (Network Node Network). Addressing the issues of insufficient flexibility and low energy efficiency in cell DTX configuration within NTN scenarios, this invention proposes a beam-based DTX implementation method based on NTN. This method makes DTX configuration more flexible, minimizing the impact on cell DTX while improving the energy efficiency of S-gNB (Satellite-gNodeB). The method mainly includes the following:

[0065] (1) The S-gNB can indicate the beam DTX by configuring beamDTX-DRX-Config in ServingCellConfigCommon.

[0066] In some embodiments, in ServingCellConfigCommon, beamDTX-DRX-Config is used as the SSB index of the beam DTX. The high 3 bits (b5b4b3) of beamDTX-DRX-Config represent the group to which the SSB belongs, with a value range of 0-7; the low 3 bits (b2b1b0) represent the specific position of the group to which the SSB belongs, with a value range of 0-7; the SSB index of the beam DTX is 8*(4*b5+2*b4+1*b3)+(4*b2+2*b1+1*b0).

[0067] When beamDTX-DRX-Config is not configured, cellDTX-DRX can be configured, activated, and deactivated normally. When beamDTX-DRX-Config is configured, only the beams corresponding to the SSBs configured in beamDTX-DRX-Config use DTX / DRX.

[0068] (2) The S-gNB can be configured with different beam DTX parameters according to the actual service load of different wavebands to achieve flexible and efficient energy saving and resource optimization.

[0069] (3) The S-gNB can activate or deactivate the beam DTX via the beam DTX / DRX indicator in DCI Format 2_9.

[0070] In some embodiments, in DCI Format 2_9, a beam DTX / DRX indicator is used, with a maximum of 8 bits. The first 6 bits are the same as beamDTX-DRX-Config, and the cell DTX / DRX indicator is reused except for the first 6 bits.

[0071] This invention's method, through precise control of beam transmission status, enables beam direct-transmission (DTX) to significantly reduce satellite energy consumption while ensuring basic communication needs are met, achieving remarkable energy savings. Furthermore, the introduction of DTX allows the system to dynamically adjust transmission strategies based on the actual service load of different beams, facilitating a more rational allocation of system resources (such as spectrum and power) according to actual needs and improving resource utilization efficiency.

[0072] The above method will be explained in detail below with reference to the accompanying drawings and specific embodiments.

[0073] See Figure 1 , Figure 1 This is a schematic diagram illustrating the applicable scenarios of the present invention.

[0074] This invention applies to NTN transparent payload architectures and regenerative payload architectures. Each S-gNB (Satellite-gNB) can contain one or more cells, and each cell can provide services for one or more beams mapped by SSBs. Cell DTX is supported in 3GPP Release 18; therefore, the embodiments will focus on describing the beam DTX implementation method, activation method, and deactivation method of a single cell based on cell DTX. Figure 1 In a cell, multiple beams mapped by different SSBs form multiple spectral positions, each with a different number of UEs (User Equipment). The service load on each spectral position is not balanced. These spectral positions together constitute a complete serving cell, meaning they share the same PCI. In cell DTX, the cell DTX configuration for each spectral position is consistent. The goal of beam DTX is to provide more flexible DTX configurations for different spectral positions within the same cell to achieve energy savings.

[0075] Example 1:

[0076] like Figure 1 In the S-gNB, waveband 0 mapped to SSB0 has a high service load; waveband 1 mapped to SSB1 has a moderate service load; and waveband 2 mapped to SSB2 has a low service load. The S-gNB will configure beam DTX for different wavebands to achieve energy savings. The beam DTX configuration is as follows: Figure 2 As shown, the signaling process involved in the implementation is as follows: Figure 3 As shown, the configuration process is as follows: Figure 4 As shown; the detailed process is as follows.

[0077] For all UEs in RRC connected state with S-gNB:

[0078] Step 1: In the RRC Reconfiguration message pre-sent to UEs of different beam positions, the S-gNB configures the period, activity duration, etc. corresponding to the beam DTX on ServingCellConfig->CellDTX-DRX-Config-r18, and sets CellDTX-DRX-Config to dtx or dtxdrx, and CellDTX-DRX-activationStatus to activated. The above configuration is the original cell DTX configuration, which is now used for the implementation of beam DTX.

[0079] Specifically, for wave position 0 mapped by SSB0, its service load is high, so the configured DTX period (cellDTX-DRX-Cycle) can be shorter, and the beam DTX activity duration (cellDTX-DRX-onDurationTimer) can be longer. For wave position 1 mapped by SSB1, its service load is moderate, so the configured DTX period (cellDTX-DRX-Cycle) and the beam DTX activity duration (cellDTX-DRX-onDurationTimer) can both be of medium length. For wave position 2 mapped by SSB2, its service load is low, so the configured DTX period (cellDTX-DRX-Cycle) can be longer, and the beam DTX activity duration (cellDTX-DRX-onDurationTimer) can be shorter.

[0080] Step 2: In the RRC Reconfiguration message pre-sent to UEs of different beam positions, the S-gNB configures the SSB index corresponding to the beam for which DTX needs to be activated in ServingCellConfigCommon->beamDTX-DRX-Config.

[0081] Specifically: For a certain wave position mapped by SSBn, where n is the maximum number of SSBs that can be matched by S-gNB, the high 3 bits of the SSB index (b5, b4, b3 ∈ {0, 1}) are the binary number corresponding to the quotient of n divided by 7, i.e., 4*b5 + 2*b4 + 1*b3 = n / 7. For the low 3 bits of the SSB index (b3, b2, b1 ∈ {0, 1}), they are the binary number corresponding to the remainder of n divided by 7, i.e., 4*b2 + 2*b1 + 1*b0 = n mod 7.

[0082] Therefore, for SSB0, the quotient of n divided by 7 is 0, so b5 = 0, b4 = 0, b3 = 0. The remainder of n divided by 7 is 0, so b2 = 0, b1 = 0, b0 = 0.

[0083] For SSB1, the quotient of n divided by 7 is 0, therefore b5 = 0, b4 = 0, b3 = 0. The remainder of n divided by 7 is 1, therefore b2 = 0, b1 = 0, b0 = 1.

[0084] For SSB2, the quotient of n divided by 7 is 0, therefore b5 = 0, b4 = 0, b3 = 0. The remainder of n divided by 7 is 2, therefore b2 = 0, b1 = 1, b0 = 0.

[0085] Therefore, the beamDTX-DRX-Config of the waveforms mapped by SSB0, SSB1, and SSB2 should be configured as 000000, 000001, and 000010, respectively.

[0086] Step 3: In the RRC Reconfiguration message pre-sent to the UE, the S-gNB configures the starting position of the serving cell DCI Format 2_9 on ServingCellConfig->positionInDCI-cellDTRX.

[0087] Step 4: In the RRC Reconfiguration message pre-sent to the UE, the S-gNB configures ServingCellConfig->cellDTX-DRX-L1activation-r18 as enabled.

[0088] Step 5: S-gNB sends an RRC Reconfiguration message to the UE.

[0089] Step 6: The UE sends an RRC Reconfiguration complete message to the S-gNB.

[0090] Step 7: The UE compares the SSB index in beamDTX-DRX-Config with the currently selected SSB index. If they match, the UE stops listening to the PDCCH during beam DTX inactivity, as required by beam DTX. If they do not match, the beam DTX configuration will not be activated.

[0091] For other non-connected UEs: No effect.

[0092] Example 2:

[0093] like Figure 1 In the context of SSB1, the UE within wavelength 1 mapped to SSB1 has completed beam DTX configuration, but the beam DTX has been deactivated. When data traffic is low, the S-gNB can activate beam DTX separately for this wavelength position via DCI to achieve energy saving. The signaling process involved in DCI-based beam DTX activation is as follows: Figure 5 The configuration process is as follows: Figure 6 The following is a detailed process.

[0094] Step 1: Determine all connected-state UEs within wavelet 1 mapped by SSB1:

[0095] Step 2: The S-gNB sends DCI Format 2_9 via PDCCH. The first 6 bits of the beam DTX / DRX indicator correspond to the SSB index, and the configuration is consistent with beamDTX-DRX-Config corresponding to SSB1. If cellDTXDRXconfigType is configured as dtxdrx, the last two bits of the beam DTX / DRX indicator are 10 or 11; if cellDTXDRXconfigType is configured as dtx, the last two bits of the beam DTX / DRX indicator are 1.

[0096] Step 3: The UE can determine the starting position of DCI Format 2_9 by using the positionInDCI-cellDTRX instruction.

[0097] Step 4: The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

[0098] The first 6 bits of the beam DTX / DRX indicator are compared with the currently selected SSB index. If they match, the cellDTXDRXconfigType is further configured as dtxdrx, and the beam DTX / DRX indicator bit is 10 or 11, activating beam DTX. The cellDTXDRXconfigType is configured as dtx, and the beam DTX / DRX indicator bit is 1, activating beam DTX.

[0099] Example 3:

[0100] like Figure 1 In the configuration, the UE within beam DTX of band 1 mapped by SSB1 has completed beam DTX configuration and is activated. When data services increase, the S-gNB will deactivate beam DTX for this band individually. The signaling process involved in DCI-based beam DTX deactivation is as follows: Figure 5 The configuration process is as follows: Figure 7 The following is a detailed process.

[0101] Step 1: Determine all connected-state UEs within wavelet 1 mapped by SSB1:

[0102] Step 2: The S-gNB sends DCI Format 2_9 via PDCCH, where the first 6 bits of the beam DTX / DRX indicator are consistent with the beamDTX-DRX-Config corresponding to SSB1. If cellDTXDRXconfigType is configured as dtxdrx, the beam DTX / DRX indicator bits are 00 or 01; if cellDTXDRXconfigType is configured as dtx, the beam DTX / DRX indicator bits are 10.

[0103] Step 3: The UE can determine the starting position of DCI Format 2_9 by using the positionInDCI-cellDTRX instruction in order to complete the deactivation of beam DTX.

[0104] Step 4: The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

[0105] If the first 6 bits of the beam DTX / DRX indicator are compared with the currently selected SSB index, and they match, then further, if cellDTXDRXconfigType is configured as dtxdrx and the beam DTX / DRX indicator bit is 00 or 01, the beam DTX is deactivated. If cellDTXDRXconfigType is configured as dtx and the beam DTX / DRX indicator bit is 0, the beam DTX is deactivated.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0107] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for implementing beam DTX based on a non-terrestrial network, characterized in that, Introducing beam DTX based on cell DTX includes the following steps: S-gNB is configured with different beam DTX parameters according to the actual service load of different wavebands in order to achieve flexible and efficient energy saving and resource optimization. The S-gNB is configured with different beam DTX parameters according to the actual service load of different frequency bands, including: S-gNB provides flexible DTX configuration for different beam positions within the same cell by configuring beamDTX-DRX-Config in ServingCellConfigCommon to indicate beam DTX. In ServingCellConfigCommon, beamDTX-DRX-Config is used as the SSB index for beam DTX; When beamDTX-DRX-Config is not configured, cellDTX-DRX can be configured, activated, and deactivated normally; when beamDTX-DRX-Config is configured, only the beams corresponding to the SSBs configured in beamDTX-DRX-Config use DTX / DRX.

2. The beam DTX implementation method based on a non-terrestrial network according to claim 1, characterized in that, The S-gNB indicates beam DTX by configuring beamDTX-DRX-Config in ServingCellConfigCommon, including: The S-gNB sends an RRC Reconfiguration message to the UE in RRC connected state. The RRC Reconfiguration message includes ServingCellConfigCommon, and in ServingCellConfigCommon->beamDTX-DRX-Config, the SSB index corresponding to the beam that needs to activate DTX is configured. After receiving the RRC Reconfiguration message, the UE compares the SSB index with the currently selected SSB index. If they match, the UE stops listening to the PDCCH during the inactive period of beam DTX, as required by beam DTX. If they do not match, the beam DTX configuration will not be activated.

3. The beam DTX implementation method based on a non-terrestrial network according to claim 2, characterized in that, The RRC Reconfiguration message also includes ServingCellConfig; Configure the period and activity duration corresponding to the beam DTX on ServingCellConfig->CellDTX-DRX-Config-r18, and set CellDTX-DRX-Config to dtx or dtxdrx, and set CellDTX-DRX-activationStatus to activated. Configure the starting position of the serving cell DCI Format 2_9 on ServingCellConfig->positionInDCI-cellDTRX; Configure ServingCellConfig->cellDTX-DRX-L1activation-r18 as enabled.

4. The beam DTX implementation method based on a non-terrestrial network according to claim 1, characterized in that, If the UE within the band position mapped by the SSB has completed the band DTX configuration, but the band DTX has been deactivated; when data traffic is low, the S-gNB activates the band DTX separately for that band position through DCI to achieve energy saving.

5. The beam DTX implementation method based on a non-terrestrial network according to claim 4, characterized in that, The S-gNB activates the beam DTX for this wavelength independently via DCI, including: Identify all connected UEs within the waveband mapped by the SSB; S-gNB sends DCI Format 2_9 via PDCCH; The UE receives DCI format 2_9 through the start position of DCI format 2_9; The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

6. The beam DTX implementation method based on a non-terrestrial network according to claim 5, characterized in that, The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration, including: The first 6 bits of the beam DTX / DRX indicator are compared with the currently selected SSB index. If they match, and cellDTXDRXconfigType is configured as dtxdrx, beam DTX is activated when the beam DTX / DRX indicator bit is 10 or 11; if cellDTXDRXconfigType is configured as dtx, beam DTX is activated when the beam DTX / DRX indicator bit is 1.

7. The beam DTX implementation method based on a non-terrestrial network according to claim 1, characterized in that, If the UE within the band position mapped by the SSB has completed the band DTX configuration and is already activated, when data services increase, the S-gNB will activate the band DTX separately for that band position via DCI.

8. The beam DTX implementation method based on a non-terrestrial network according to claim 7, characterized in that, The S-gNB deactivates the beam DTX for this spectral position separately via DCI, including: Identify all connected UEs within the waveband mapped by the SSB; S-gNB sends DCI Format 2_9 via PDCCH; The UE receives DCI format 2_9 through the start position of DCI format 2_9; The UE determines the beam DTX / DRX indicator bit by reading the cellDTXDRXconfigType configuration in DCI Format 2_9, and then determines the update of the DTX / DRX configuration.

Images