Transmission Parameter Management Method, Apparatus, and Electronic Device

Abstract

The present application discloses a transmission parameter management method, an apparatus, and an electronic device, which belong to the communication technology field. The transmission parameter management method performed by a first self-backhauling IAB node includes: obtaining auxiliary information related to transmission parameters of a second IAB node and / or auxiliary information related to measurement parameters; and determining transmission parameters based on the auxiliary information.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims the priority of Chinese Patent Application No. 202011206318.7, filed in China on November 02, 2020, and all the contents of the said application are incorporated herein by reference.

[0002] This application relates to the field of communication technologies, and particularly to a method, apparatus, and electronic device for transmission parameter management.

Background Art

[0003] New Radio (NR) downlink (DL) transmission adopts an open-loop power control mechanism. For the transmission of synchronization signal blocks (SSB / PSS / SSS / PBCH) and / or periodic channel state information-reference signals (CSI-RS), the base station adopts a fixed energy per resource element (EPRE) for each resource element. In order for the UE (User Equipment) to perform signal strength measurement, these EPREs are notified to the user equipment in advance. For the transmission of the physical downlink control channel (PDCCH) in control resource set (CORESET) #0, its EPRE is controlled within a certain range, and the base station notifies this dynamic range to the UE in advance. For the transmission of other DL channels and / or signals, the base station determines the transmission power in a realizable manner, and the relevant information is not notified to the UE.

[0004] NR Uplink (UL) transmission employs open-loop and closed-loop power control schemes, and the UE determines the transmit power of the UL channel by either open-loop or closed-loop power control. Furthermore, the UE's UL transmit power is limited to a maximum transmit power value predetermined by the protocol, and under no circumstances shall the UE's UL transmit power exceed this value.

[0005] However, conventional power control mechanisms for NRs do not take into account the imbalance in power spectral density (PSD) between the IAB DU and MT. [Overview of the project] [Problems that the invention aims to solve]

[0006] Embodiments of this application provide a transmission parameter management method, apparatus, and electronic equipment that can overcome imbalances in PSD between IAB nodes DU and MT. [Means for solving the problem]

[0007] According to a first aspect, an embodiment of the present application provides a transmission parameter management method performed by a first self-backhaul IAB node, the management method being: To obtain auxiliary information related to the transmission parameters of the second IAB node, and / or auxiliary information related to the measurement parameters, This includes determining transmission parameters based on the aforementioned auxiliary information.

[0008] According to a second aspect, an embodiment of the present application provides a transmission parameter management device used for a first self-backhaul IAB node, the management device is An acquisition module for obtaining auxiliary information related to the transmission parameters of the second IAB node, and / or auxiliary information related to the measurement parameters, The system includes a processing module for determining transmission parameters based on the aforementioned auxiliary information.

[0009] According to a third aspect, the embodiments of the present application further provide an electronic device comprising a processor, memory, and a program or instruction stored in the memory and operable by the processor, wherein the program or instruction, when executed by the processor, realizes a step of the method according to the first aspect.

[0010] According to a fourth aspect, an embodiment of the present application provides a readable storage medium in which a program or instruction is stored, and the program or instruction is executed by a processor to realize a step of the method of the first aspect.

[0011] According to a fifth aspect, an embodiment of the present application provides a chip comprising a processor and a communication interface, the communication interface being coupled with the processor, the processor executing a program or instruction and used to implement the method according to the first aspect.

[0012] According to the sixth aspect, an embodiment of the present application provides a computer program product which is stored in a non-volatile storage medium and is executed by at least one processor, thereby realizing the method according to the first aspect. [Effects of the Invention]

[0013] In the embodiments of this application, the first IAB node can determine the transmission parameters based on the auxiliary information by acquiring auxiliary information related to the transmission parameters and / or measurement parameters of the second IAB node, thereby overcoming the imbalance in PSD between the IAB node DU and MT.

[0014] To more clearly explain the technical solutions of the embodiments of this application, the following briefly introduces the drawings that need to be used in the description of the embodiments of this application. It is self-evident that the drawings in the following description are only some embodiments of this application. For those skilled in the art, based on these drawings, other drawings can also be obtained on the premise of not paying creative labor.

Brief Description of the Drawings

[0015] [Figure 1] It is a schematic diagram of a wireless communication system. [Figure 2] It is a schematic diagram of an IAB system. [Figure 3] It is a structural diagram of the CU-DU of an IAB system. [Figure 4] It is a schematic diagram of the transmission of auxiliary information by an IAB node. [Figure 5] It is a schematic diagram of the transmission of auxiliary information by an IAB node. [Figure 6] It is a schematic diagram of the transmission of auxiliary information by an IAB node. [Figure 7] It is a schematic diagram of the transmission of auxiliary information by an IAB node. [Figure 8] It is a schematic diagram of the flowchart of the transmission parameter management method in the embodiments of this application. [Figure 9] It is a schematic diagram of transmitting power information from an IAB parent node to an IAB node in the embodiments of this application. [Figure 10] It is a structural diagram of the transmission parameter management device in the embodiments of this application. [Figure 11] It is a schematic diagram of the configuration of a terminal in the embodiments of this application.

Modes for Carrying Out the Invention

[0016] The following clearly and completely describes the technical concepts in the embodiments of this application, linking them to the drawings of the embodiments. Clearly, the embodiments described are only some, and not all, embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are all within the scope of protection of this application.

[0017] The terms "first," "second," etc., used in the specification and claims of this application are intended to distinguish similar subjects and not to describe a specific order or sequence. It should be understood that the data used in this manner are interchangeable where appropriate, so that the embodiments of this application may be carried out in an order other than those illustrated or described herein. In the specification and claims, "and / or" refers to at least one of the subjects being connected, and the letter " / " generally indicates that the preceding and succeeding subjects are in an "or" relationship.

[0018] The technologies described herein are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but are applicable to various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are always used interchangeably. CDMA systems can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). UTRA includes Broadband Code Division Multiple Access (WCDMA) and other CDMA variants. TDMA systems can implement radio technologies such as the Global System for Mobile Communication (GSM). OFDMA systems can implement radio technologies such as UltraMobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS).LTE and higher levels of LTE (e.g., LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used in the systems and radio technologies mentioned above, and may also be used in other systems and radio technologies. The following description describes the NR system for illustrative purposes and uses the NR terminology in most of the following descriptions, but these techniques can also be used in applications other than NR system applications.

[0019] The following description is illustrative and does not limit the scope, applicability, or arrangement set forth in the claims. Without departing from the spirit and scope of the present disclosure, the functions and layouts of the elements discussed can be changed. Various examples can appropriately omit, substitute, or add various procedures or assemblies. For example, a method described in a different procedure from that described can be executed, and various steps can be added, omitted, or combined. Also, features described in reference to some examples can be combined in other examples.

[0020] Referring to Figure 1, Figure 1 is a block diagram of a wireless communication system to which the embodiments of this application can be applied. The wireless communication system includes a terminal 11 and network-side equipment 12. Here, the terminal 11 may also be called terminal equipment or user equipment (UE), and the terminal 11 may be terminal-side equipment such as a mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), wearable device, or in-vehicle equipment, and it should be noted that the embodiments of this application do not limit the specific type of terminal 11. The network-side equipment 12 may be a base station or a core network, where the base station may be a 5G or later version base station (e.g., gNB, 5G NR NB, etc.), or a base station in other communication systems (e.g., eNB, WLAN access point, or other access point, etc.), or a location server (e.g., E-SMLC or LMF (Location Manager Function)), where the base station may also be called a node B, evolutionary node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolutionary B node (eNB), home B node, home evolutionary B node, WLAN access point, WiFi node, or any other appropriate term in the art, and is not limited to any particular technical term as long as the same technical effect is achieved. For the purposes of this explanation, the embodiments of this application only use base stations in NR systems as examples, but do not limit the specific types of base stations or specific communication systems.

[0021] Figure 2 is a schematic diagram of an integrated access backhaul (IAB) system. One IAB node includes a Distributed Unit (DU) function and a Mobile Termination (MT) function. The MT allows one access point (i.e., IAB node) to find one upstream access point (parent IAB node) and establish a wireless connection with the upstream access point's DU, which is called a backhaul link. After one IAB node has established a complete backhaul link, this IAB node turns on its DU function, and the DU can provide cell services, i.e., access services to User Equipment (UE). One integrated backhaul loop includes a donor IAB node (or may be called an IAB donor), and the donor IAB node has a wired transport network to which it is directly connected. Here, Access is access, Access IAB node is an access IAB node, Intermediate IAB node is an intermediate IAB node, and Cable transport is wired transport.

[0022] Figure 3 shows the structure of the CU-DU (Centralized Unit-Distributed Unit) in the IAB system. In a self-backhaul loop, the DUs of all IAB nodes are connected to a Centralized Unit (CU) node, which deploys the DUs using the F1 protocol (F1 Application Protocol, or F1 control protocol). The CU deploys the MTs using the Radio Resource Control (RRC) protocol. Donor IAB nodes do not have an MT function unit. The IAB system was introduced to address the issue of insufficient wired transmission networks when access points are densely located. In other words, in the absence of a wired transmission network, access points can rely on wireless backhaul.

[0023] To achieve resource multiplexing in frequency-division multiplexing (FDM) and / or space division multiplexing (SDM), the following are possible simultaneous transmission and reception methods for DU and MT.

[0024] (1) This indicates that DU and MT transmit simultaneously (DU TX & MT TX), or that DU is configured as a downlink (DL) and MT is configured as an uplink (UL), or that DU performs DL transmission and MT performs UL transmission.

[0025] (2) This indicates that DU and MT receive simultaneously (DU RX & MT RX), or that DU is configured as UL and MT is configured as DL, or that DU performs UL reception and MT performs DL transmission.

[0026] (3) This indicates that DU and MT transmit and receive simultaneously (DU TX & MT RX), or that DU is configured as DL and MT is configured as DL, or that DU performs DL transmission and MT performs DL reception.

[0027] (4) This indicates that DU and MT transmit and receive simultaneously (DU RX & MT TX), or that DU is configured as UL and MT is configured as UL, or that DU performs UL reception and MT performs UL transmission.

[0028] NR DL transmission employs an open-loop power control mechanism. For the transmission of Synchronization Signal blocks (SSB / PSS / SSS / PBCH) and / or periodic Channel State Information-Reference Signals (CSI-RS), the base station employs a fixed Energy Per Resource Element (EPRE) for each resource element, and these EPREs are notified to the UE in advance for the UE to measure signal strength. For the transmission of the Physical Downlink Control Channel (PDCCH) in CORESET #0, its EPRE is controlled within a certain range, and the base station notifies the UE of this dynamic range in advance. For the transmission of other DL channels and / or signals, the base station determines the transmission power in a manner that is implemented, and the relevant information is not notified to the UE.

[0029] NR UL transmission employs open-loop and closed-loop power control schemes, and the UE determines the transmit power of the UL channel by either open-loop or closed-loop power control. Furthermore, the UE's UL transmit power is limited to a maximum transmit power value predetermined by the protocol, and under no circumstances shall the UE's UL transmit power exceed this value.

[0030] However, existing power control mechanisms for NRs do not take into account the imbalance in power spectral density (PSD) between the IAB DU and MT.

[0031] When IAB DU and MT are received simultaneously, as shown in Figure 4, the IAB node can send auxiliary information to the parent node to assist in the parent node's downlink power control. This method can be understood as the parent node performing closed-loop downlink power control (DL power control). Alternatively, as shown in Figure 5, the parent node can send auxiliary information to the IAB node to assist in the IAB node's uplink power control. This method can be understood as the parent node performing open-loop DL power control, with the auxiliary information being power control parameters. Alternatively, as shown in Figure 6, the IAB node can send auxiliary information to the parent node to assist in the parent node's uplink power control. Alternatively, as shown in Figure 7, the parent node can send auxiliary information to the IAB node to assist in the IAB node's downlink power control.

[0032] An embodiment of this application provides a transmission parameter management method, which is performed by a first IAB node, as shown in Figure 8. Step 101 involves obtaining auxiliary information related to the transmission parameters of the second IAB node, and / or auxiliary information related to the measurement parameters. The step includes determining transmission parameters based on the aforementioned auxiliary information (step 102).

[0033] In the embodiments of this application, the first IAB node can determine the transmission parameters based on the auxiliary information and resolve the imbalance in PSD between the IAB node DU and MT by acquiring auxiliary information related to the transmission parameters and / or measurement parameters of the second IAB node.

[0034] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes the transmit power information of the distributed unit DU of the IAB parent node, and the transmit power information of the IAB parent node DU is The transmission power information of a physical downlink channel is included, and the physical downlink channel includes a physical downlink shared channel PDSCH and / or a physical downlink control channel PDCCH.

[0035] In this embodiment, as shown in Figure 9, the IAB node acquires the transmit power information of the parent node DU, and the transmit power information of the parent node DU includes at least the energy per resource element (EPRE) information of each resource element of the parent node DU's PDSCH and / or PDCCH. The energy per resource element (EPRE) information of each resource element of the PDSCH and / or PDCCH can only be applied at the time when the IAB node DU and MT receive it simultaneously. After the IAB node receives the transmit power information of the parent node DU, it performs power control for the IAB DU UL scheduling by determining the PSD to be received by its MT DL based on the transmit power information.

[0036] In some embodiments, the transmission parameters are determined based on the aforementioned auxiliary information. This includes determining the control parameters for the uplink power of the IAB node DU based on the aforementioned auxiliary information, wherein independent power control parameters and / or power control processes are employed for the timings that the IAB parent node DU and MT receive simultaneously. That is, an IAB node can employ independent UL power control processes and / or independent P0 values ​​for its uplink scheduling for different channel timings of the parent node. For example, the transmit timing of the parent node SSB and the transmit timing of other PDSCHs correspond to independent UL power control processes, where P0 is a power control parameter indicating the initial power.

[0037] Selectively, using the existing twoPUSCH-PC-AdjustmentStates (upper-layer parameters), the CU places one of the IAB nodes' states to be used in a certain multiplexed scheduling mode to control the power of its child node MT or UE.

[0038] Selectively, in addition to the existing twoPUSCH-PC-AdjustmentStates, the CU may introduce one or more new PUSCH / PUCCH power control states (power control states / power adjustment states) for the IAB node to perform uplink power control of the child node MT or UE during simultaneous transmission of DU PUSCH / PUCCH and MT PDSCH / PDCCH. This method can be applied to simultaneous transmission of DU PUSCH / PUCCH and MT PUSCH / PUCCH. Furthermore, a new instruction domain can be introduced to the DCI to indicate whether the current scheduling uses one or more new PUSCH power control states, or one or more types of PUSCH power control states.

[0039] Selectively, when an IAB node performs uplink power adjustment / control, in addition to the power control command, it further sends additional power adjustment parameters to adjust the uplink transmit power of the child node MT or UE, and these additional power adjustment parameters are valid only for the currently scheduled PUSCH or for only one power control state.

[0040] Here, the symbol " / " means "and / or".

[0041] In some embodiments, the transmit power information of the physical downlink channel of the IAB parent node DU is Includes energy EPRE information for each resource element in the physical downlink channel.

[0042] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0043] In some embodiments, the range of change of EPRE is, The maximum and / or minimum values ​​of the EPRE of the aforementioned physical downlink channel, The difference between the maximum and minimum EPRE of the aforementioned physical downlink channel, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node synchronization signal block SSB (for example, the offset range of the PDCCH EPRE relative to the SSB in control resource set (CORESET) #0 is extended to other PDCCHs and / or PDSCHs), The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node primary synchronization signal block PSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node secondary synchronization signal SSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node physical broadcast channel PBCH, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node channel state information reference signal CSI-RS (for example, the offset range of the PDCCH EPRE relative to the CSI-RS EPRE in CORESET#0 is extended to other PDCCH / PDSCH). The CSI-RS may represent only periodic CSI-RS.

[0044] In some embodiments, the fixed value of EPRE is The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSB, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PBCH, The CSI-RS includes at least one of the following: the EPRE offset value of the physical downlink channel relative to the EPRE transmitted by the IAB parent node CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0045] In some embodiments, the transmit power information of the physical downlink channel is The beam direction of the physical downlink channel transmission (e.g., CSI reference signal resource indicator (CRI), transmission placement indicator (TCI)), The type of information carried on the physical downlink channel (e.g., downlink control information (DCI) format, ultra-high reliability, low latency communication (URLLC) transmission, enhanced mobile broadband (eMBB) transmission), The scheduling method for the physical downlink channel transmission (e.g., configured grant, dynamic grant), The time-frequency resource of the physical downlink channel transmission (e.g., the search space, CORESET, in which the channel transmission takes place) is determined by at least one of the above-mentioned characteristics of the physical downlink channel.

[0046] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, and at the time when the IAB node DU and MT transmit simultaneously, the MT's transmit power adjustment is limited by the DU's EPRE, and the parent node needs to know the IAB MT's transmit power and / or EPRE limit in order to perform uplink scheduling for the IAB MT. The parent node can obtain the IAB node MT's transmit power information, and after obtaining the IAB node MT's transmit power information, the parent node assists the DU in executing mechanisms such as UL scheduling / power control based on the transmit power information. For example, the scheduling bandwidth is determined based on the IAB MT's maximum transmit power limit and EPRE limit.

[0047] Here, the auxiliary information includes the transmit power information of the IAB node, and the transmit power information of the IAB node is Energy EPRE information for each resource element of the sounding reference signal SRS, The physical channel includes at least one of the following: EPRE, and the physical channel includes at least one of the following: physical uplink sharing channel PUSCH, physical uplink control channel PUCCH, and physical random access channel PRACH.

[0048] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0049] In some embodiments, considering that the EPRE of the MT is at the same level as the EPRE of the DU, the EPRE information is replaced with at least one of the following:

[0050] EPRE transmitted by the DU SSB of the aforementioned IAB node, EPRE transmitted by the DU PSS of the aforementioned IAB node, EPRE transmitted by the DU SSS of the aforementioned IAB node, EPRE transmitted by the DU PBCH of the aforementioned IAB node, EPRE transmitted by the DU CSI-RS of the IAB node (the CSI-RS may represent only periodic CSI-RS), EPRE transmitted by the DU PDCCH of the aforementioned IAB node, EPRE transmitted by DU PDSCH of the aforementioned IAB node.

[0051] In some embodiments, the EPRE information is the EPRE of an uplink transmission corresponding to a specific timing. For example, the time corresponding to the IAB DU's SSB and / or CSI-RS transmission, and / or the time of the simultaneous transmission of the IAB DU and MT. The aforementioned CSI-RS may represent only periodic CSI-RS.

[0052] In some embodiments, to obtain auxiliary information related to the transmission parameters of the second IAB node, This involves obtaining auxiliary information related to the transmission parameters of the second IAB node, which are predefined by the protocol (for example, notifying the DU via F1-C signaling or notifying the MT via Radio Resource Control (RRC) signaling), To obtain auxiliary information related to the transmission parameters of the second IAB node notified by the central unit, The process includes either receiving the auxiliary information transmitted by the second IAB node, or the transmission of the auxiliary information, which may be triggered by the first IAB node. For example, the first IAB node sends a request, and the second IAB node receives the request and then transmits the auxiliary information to the first IAB node or CU.

[0053] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, and the IAB MT needs to change its UL power control determination method if there is an EPRE limit at the time when the IAB DU and MT transmit simultaneously. The auxiliary information includes the transmission bandwidth of the IAB node mobile terminal MT, and the transmission parameters are determined based on the auxiliary information. This includes determining the transmit power of the MT based on the transmit power information of the IAB node and the transmit bandwidth of the MT.

[0054] In this embodiment, the IAB node MT determines the MT's transmit power based on its transmit power information, and the IAB node MT's transmit power information includes at least one of the following: the IAB node MT's SRS EPRE information, the IAB node MT's PUCCH EPRE information, the IAB node MT's PUSCH EPRE information, and the IAB node MT's / PRACH EPRE information.

[0055] In some embodiments, the transmit power of the MT is determined by: The transmission power of the MT is determined to be EPRE1*scheduled BW (where EPRE1 is the EPRE value at the time of transmission of the MT, and scheduled BW is the transmission bandwidth of the MT), It is determined that the transmission power of the MT is greater than or equal to EPREmin*scheduled BW (where EPREmin is the minimum value of EPRE during MT transmission), This includes at least one of the following: determining that the transmission power of the MT is less than or equal to EPREmax*scheduled BW (where EPREmax is the maximum value of EPRE during MT transmission).

[0056] In some embodiments, the transmit power information of the first IAB node itself is further included, and the transmit power information of the first IAB node is This includes the transmit power information of the downlink physical signal / channel of the first IAB node DU.

[0057] In some embodiments, the transmission power information of the first IAB node itself is obtained by: To obtain transmit power information for the same type of downlink physical channel at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical signal at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical channel at times when DU and MT are transmitting non-simultaneously, This includes at least one of the following: obtaining transmit power information for the same type of downlink physical signal at a time when the DU and MT are transmitting non-simultaneously.

[0058] The transmission of certain signals or channels on an IAB DU must meet pre-configured transmit power requirements. For example, the EPRE for SSB and / or periodic CSI-RS transmissions is set to a fixed value, and because the DU and MT are transmitting simultaneously, the DU transmission may no longer meet the existing pre-configured conditions. To address this, an IAB node can obtain the EPRE value transmitted by its DL and ensure that the IAB DU transmits SSB or CSI-RS, or that other DL channels have different EPRE values ​​depending on whether the IAB DU and MT are transmitting simultaneously or not.

[0059] In some embodiments, When performing signal measurements of the downlink physical signal, the process further includes performing an alignment operation between quality measurements taken at times when the DU and MT of the first IAB node are transmitting simultaneously and quality measurements taken at times when they are not transmitting simultaneously. For example, when calculating the Layer 3 (L3) quality measurement, the Layer 1 (L1) quality measurement taken at times of simultaneous transmission must be compensated for the difference in EPRE. The quality measurement includes the reference signal received power (RSRP) value and / or the received signal strength indication (RSSI) value.

[0060] In some embodiments, the downlink physical signal or channel is It includes at least one of SSB, PSS, SSS, PBCH, and CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0061] Furthermore, to avoid impacting legacy UEs, the above rules apply only to IAB-specific SSB and / or CSI RS transmissions.

[0062] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes information on the IAB parent node's transmitted beam measured by the IAB node, and the method is This further includes selecting a beam based on the aforementioned auxiliary information.

[0063] In some embodiments, the plurality of beams are At least some of the beams that have quality measurement values ​​above a preset threshold, It includes at least one of a subset of beams that have quality measurements below a predetermined threshold.

[0064] In this embodiment, multiple beams reported from the IAB node include beams with poor channel quality. This allows the parent node to flexibly use these low-channel-quality beams and send them to the IAB node, thereby achieving balance in the IAB node PSD.

[0065] In a specific example, when performing beam reporting, all or any N beams whose RSRP and / or RSSI measurements are greater than a predetermined threshold are reported to the parent node, where N is a positive integer. When reporting beams, N beams with small RSRP and / or RSSI measurements are all reported to the parent node.

[0066] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information further includes beams for transmission by the DU of the IAB node at a predetermined time, and the method is Based on the aforementioned auxiliary information, the transmission parameters used for transmission from the IAB node to the MT are determined, and these transmission parameters include at least one of the beam parameters, power parameters, and coding modulation policy (MCS) parameters. This includes at least one of the following: determining whether to transmit data to the MT of the IAB node at the predetermined time based on the aforementioned auxiliary information.

[0067] In this embodiment, the IAB node reports to the parent node the beam that its DU will send to the UL and / or DL ​​at a given time. Based on the beam used by the IAB DU, the parent node determines the interference status of MT reception due to DU UL and / or DL ​​transmission, and decides which transmission parameters such as beam, MCS, and Power to use when transmitting to the IAB MT, or whether it is possible to transmit data to the IAB MT at that time.

[0068] To assist the parent node in its decision-making, the IAB node may further report interference status for DU-MT beam pairs, and in some embodiments, this auxiliary information may further include interference status for the DU-MT beam pairs. The interference status for the DU-MT beam pairs may include interference from DU to MT, or from DU to MT, when transmitting using one pair of DU-MT beam pairs. The interference status may also directly reflect whether the IAB node can transmit simultaneously using the DU-MT beam pairs. For example, the interference status may be represented in binary, where "0" indicates that the DU-MT beam pairs can transmit simultaneously, and "1" indicates that the DU-MT beam pairs cannot transmit simultaneously, or vice versa.

[0069] It should be noted that the transmission parameter management method according to the embodiment of this application may be implemented by a transmission parameter management device, or by a module for loading and executing the transmission parameter management method in this transmission parameter management device. The transmission parameter management method provided in the embodiment of this application will be described in an example in which a transmission parameter management device loads and executes the transmission parameter management method.

[0070] The embodiment of this application provides a transmission parameter management device applied to an IAB node 200, and as shown in Figure 10, the device is An acquisition module 210 for acquiring auxiliary information related to the transmission parameters of the second IAB node, and / or auxiliary information related to the measurement parameters, The system includes a processing module 220 for determining transmission parameters based on the aforementioned auxiliary information.

[0071] In the embodiments of this application, the first IAB node can determine the transmission parameters based on the auxiliary information and resolve the imbalance in PSD between the IAB node DU and MT by acquiring auxiliary information related to the transmission parameters and / or measurement parameters of the second IAB node.

[0072] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes the transmit power information of the distributed unit DU of the IAB parent node, and the transmit power information of the IAB parent node DU is The transmission power information of a physical downlink channel is included, and the physical downlink channel includes a physical downlink shared channel PDSCH and / or a physical downlink control channel PDCCH.

[0073] In some embodiments, the processing module is used to determine control parameters for the uplink power of the IAB node DU based on the auxiliary information, where independent power control parameters and / or power control processes are employed for timings simultaneously received by the IAB parent node DU and MT.

[0074] Selectively, using the existing twoPUSCH-PC-AdjustmentStates (upper-layer parameters), the CU places one of the IAB nodes' states to be used in a certain multiplexed scheduling mode to control the power of its child node MT or UE.

[0075] Selectively, in addition to the existing twoPUSCH-PC-AdjustmentStates, the CU may introduce one or more new PUSCH / PUCCH power control states (power control states / power adjustment states) for the IAB node to perform uplink power control of the child node MT or UE during simultaneous transmission of DU PUSCH / PUCCH and MT PDSCH / PDCCH. This method can be applied to simultaneous transmission of DU PUSCH / PUCCH and MT PUSCH / PUCCH. Furthermore, a new instruction domain can be introduced to the DCI to indicate whether the current scheduling uses one or more new PUSCH power control states, or one or more types of PUSCH power control states.

[0076] Selectively, when an IAB node performs uplink power adjustment / control, in addition to the power control command, it further sends additional power adjustment parameters to adjust the uplink transmit power of the child node MT or UE, and these additional power adjustment parameters are valid only for the currently scheduled PUSCH or for only one power control state.

[0077] Here, the symbol " / " means "and / or".

[0078] In some embodiments, the transmit power information of the physical downlink channel of the IAB parent node DU is Includes energy EPRE information for each resource element in the physical downlink channel.

[0079] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0080] In some embodiments, the range of change of EPRE is, The maximum and / or minimum values ​​of the EPRE of the aforementioned physical downlink channel, The difference between the maximum and minimum EPRE of the aforementioned physical downlink channel, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node synchronization signal block SSB, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node primary synchronization signal block PSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node secondary synchronization signal SSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node physical broadcast channel PBCH, The CSI-RS includes at least one of the following: the offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node channel state information reference signal CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0081] In some embodiments, the fixed value of EPRE is The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSB, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PBCH, The CSI-RS includes at least one of the following: the EPRE offset value of the physical downlink channel relative to the EPRE transmitted by the IAB parent node CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0082] In some embodiments, the transmit power information of the physical downlink channel is The beam direction of the aforementioned physical downlink channel transmission and The type of information carried to the aforementioned physical downlink channel, The scheduling method for the aforementioned physical downlink channel transmission, The relationship between the physical downlink channel transmission and the time-frequency domain resources is determined by at least one of the above-mentioned characteristics of the physical downlink channel.

[0083] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes the transmit power information of the IAB node, and the transmit power information of the IAB node is Energy EPRE information for each resource element of the sounding reference signal SRS, The physical channel includes at least one of the following: EPRE, and the physical channel includes at least one of the following: physical uplink sharing channel PUSCH, physical uplink control channel PUCCH, and physical random access channel PRACH.

[0084] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0085] In some embodiments, considering that the EPRE of the MT is at the same level as the EPRE of the DU, the EPRE information is replaced with at least one of the following:

[0086] EPRE transmitted by the DU SSB of the aforementioned IAB node, EPRE transmitted by the DU PSS of the aforementioned IAB node, EPRE transmitted by the DU SSS of the aforementioned IAB node, EPRE transmitted by the DU PBCH of the aforementioned IAB node, EPRE transmitted by the DU CSI-RS of the IAB node (the CSI-RS may represent only periodic CSI-RS), EPRE transmitted by the DU PDCCH of the aforementioned IAB node, EPRE transmitted by DU PDSCH of the aforementioned IAB node.

[0087] In some embodiments, the EPRE information is an EPRE for an uplink transmission corresponding to a specific timing.

[0088] In some embodiments, the acquisition module specifically This involves obtaining auxiliary information related to the transmission parameters of the second IAB node, which are predefined by the protocol (for example, notifying the DU via F1-C signaling or notifying the MT via Radio Resource Control (RRC) signaling), To obtain auxiliary information related to the transmission parameters of the second IAB node notified by the central unit, It is used to perform either of the following: receiving the auxiliary information transmitted by the second IAB node. The transmission of the auxiliary information may be triggered by the first IAB node. For example, the first IAB node sends a request, and after the second IAB node receives the request, it sends the auxiliary information to the first IAB node or CU.

[0089] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes the transmission bandwidth of the IAB node mobile terminal MT, and the processing module is used to determine the transmission power of the MT based specifically on the transmission power information of the IAB node and the transmission bandwidth of the MT.

[0090] In some embodiments, the processing module specifically The transmission power of the MT is determined to be EPRE1*scheduled BW (where EPRE1 is the EPRE value at the time of transmission of the MT, and scheduled BW is the transmission bandwidth of the MT), It is determined that the transmission power of the MT is greater than or equal to EPREmin*scheduled BW (where EPREmin is the minimum value of EPRE during MT transmission), This is used to perform at least one of the following: determining that the transmission power of the MT is less than or equal to EPREmax*scheduled BW (where EPREmax is the maximum value of EPRE when the MT is transmitted).

[0091] In some embodiments, the acquisition module is used to acquire the transmit power information of the first IAB node itself, and the transmit power information of the first IAB node is The first IAB node DU downlink physical signal and / or channel transmit power information are included.

[0092] In some embodiments, the acquisition module specifically To obtain transmit power information for the same type of downlink physical channel at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical signal at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical channel at times when DU and MT are transmitting non-simultaneously, This includes at least one of the following: obtaining transmit power information for the same type of downlink physical signal at a time when the DU and MT are transmitting non-simultaneously.

[0093] In some embodiments, the processing module further includes, when performing signal measurements of the downlink physical signal, aligning quality measurements taken at times when the DU and MT of the first IAB node are transmitting simultaneously with quality measurements taken at times when they are transmitting non-simultaneously.

[0094] In some embodiments, the downlink physical signal or channel is It includes at least one of SSB, PSS, SSS, PBCH, and CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0095] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes information on the IAB parent node's transmitted beam measured by the IAB node, and the processing module is also for selecting a beam based on the auxiliary information.

[0096] In some embodiments, the plurality of beams are At least some of the beams that have quality measurement values ​​above a preset threshold, It includes at least one of a subset of beams that have quality measurements below a predetermined threshold.

[0097] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information further includes beams for transmission by the DU of the IAB node at a predetermined time, and the processing module is Based on the aforementioned auxiliary information, determine the transmission parameters used for transmission from the IAB node to the MT (the transmission parameters include at least one of beam parameters, power parameters, and coding modulation policy parameters), Based on the aforementioned auxiliary information, it is used to perform at least one of the following: determining whether to transmit data to the MT of the IAB node at the predetermined time.

[0098] To assist the parent node in its decision-making, the IAB node may also report interference status for DU-MT beam pairs, and in some embodiments, this auxiliary information further includes interference status for DU-MT beam pairs. The interference status for DU-MT beam pairs may include interference from DU to MT, or from DU to MT, when transmitting using one pair of DU-MT beam pairs. The interference status may also directly reflect whether the IAB node can transmit simultaneously using the DU-MT beam pair. For example, the interference status may be represented in binary, where "0" indicates that the DU-MT beam pair can transmit simultaneously, and "1" indicates that the DU-MT beam pair cannot transmit simultaneously, or vice versa.

[0099] The transmission parameter management device in the embodiments of this application may be a device, a component in a terminal, an integrated circuit, or a chip. This device may be a mobile electronic device or a non-mobile electronic device. For example, a mobile electronic device may be a mobile phone, tablet PC, notebook computer, palmtop computer, in-vehicle electronic device, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), and a non-mobile electronic device may be a network-attached storage (NAS), personal computer (PC), television (TV), teller machine, or self-service machine, and the embodiments of this application are not specifically limited.

[0100] The transmission parameter management device in the embodiments of this application may be a device having an operating system. This operating system may be an Android operating system, an iOS operating system, or any other possible operating system, and the embodiments of this application are not specifically limited.

[0101] Selectively, embodiments of this application further provide electronic equipment comprising a processor, memory, and a program or instruction stored in the memory and operable on the processor, which, when executed by the processor, can realize each process of the embodiments of the transmission parameter management method described above and achieve the same technical effects. To avoid repetition, no further explanation is provided here.

[0102] It should be noted that the electronic devices in the embodiments of this application include mobile electronic devices and non-mobile electronic devices.

[0103] The electronic device in this embodiment may be a terminal. Figure 11 is a schematic diagram showing the hardware structure of a terminal in each embodiment of this application, and this terminal 50 includes, but is not limited to, a radio frequency unit 51, a network module 52, an audio output unit 53, an input unit 54, a sensor 55, a display unit 56, a user input unit 57, an interface unit 58, a memory 59, a processor 510, and a power supply 511. As will be understood by those skilled in the art, the terminal structure shown in Figure 11 does not constitute a limitation on terminals, and a terminal may include more or fewer components than the number of components shown, or combinations of some components, or different arrangements of components. In the embodiments of this application, terminals include, but are not limited to, mobile phones, tablet PCs, notebook computers, palmtop computers, in-vehicle terminals, wearable devices, and pedometers.

[0104] It should be understood that in the embodiments of this application, the radio frequency unit 51 may be used for transmitting and receiving information or for transmitting and receiving signals during a call. Specifically, it receives downlink data from a base station, processes it with the processor 510, and transmits uplink data to the base station. Generally, the radio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. The radio frequency unit 51 can also communicate with other devices via a wireless communication system or network.

[0105] Memory 59 may be used to store software programs and various data. Memory 59 may mainly include a program storage area and a data storage area, where the program storage area can store the operating system, application programs necessary for at least one function (e.g., audio playback function, image playback function, etc.), and data storage area can store data created through the use of the mobile phone (e.g., audio data, phone book, etc.). Memory 59 may also include high-speed random access memory, and may include non-volatile memory, such as at least one magnetic disk memory device, flash memory device, or other volatile solid-state memory device.

[0106] The processor 510 is the control center of the terminal, connected to all parts of the terminal by various interfaces and lines, and monitors the entire terminal by operating or executing software programs and / or modules stored in memory 59, retrieving data stored in memory 59, executing various functions of the terminal, and processing data. The processor 510 may include one or at least two processing units. Preferably, the processor 510 may integrate an application processor and a modem processor. Here, the application processor is mainly used to process the operating system, user interface, application programs, etc., and the modem processor is mainly used to process wireless communication. To understand that, the above modem processor does not have to be integrated into the processor 510.

[0107] Terminal 50 may further include a power supply 511 (e.g., a battery) that supplies power to each component. Preferably, the power supply 511 may be logically connected to the processor 510 by a power management system, thereby enabling the power management system to implement functions such as charge / discharge management and power consumption management.

[0108] Furthermore, terminal 50 includes several functional modules that are not shown, and will not be described further here.

[0109] The processor 510 acquires auxiliary information related to the transmission parameters of the second IAB node and / or auxiliary information related to the measurement parameters, and is used to determine the transmission parameters based on the auxiliary information.

[0110] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes the transmit power information of the distributed unit DU of the IAB parent node, and the transmit power information of the IAB parent node DU is The transmission power information of a physical downlink channel is included, and the physical downlink channel includes a physical downlink shared channel PDSCH and / or a physical downlink control channel PDCCH.

[0111] In some embodiments, the processor 510 is specifically used to determine the control parameters for the uplink power of the IAB node DU based on the auxiliary information, where independent power control parameters and / or power control processes are employed for timings simultaneously received by the IAB parent node DU and MT.

[0112] Selectively, using the existing twoPUSCH-PC-AdjustmentStates (upper-layer parameters), the CU places one of the IAB nodes' states to be used in a certain multiplexed scheduling mode to control the power of its child node MT or UE.

[0113] Selectively, in addition to the existing twoPUSCH-PC-AdjustmentStates, the CU may introduce one or more new PUSCH / PUCCH power control states (power control states / power adjustment states) for the IAB node to perform uplink power control of the child node MT or UE during simultaneous transmission of DU PUSCH / PUCCH and MT PDSCH / PDCCH. This method can be applied to simultaneous transmission of DU PUSCH / PUCCH and MT PUSCH / PUCCH. Furthermore, a new instruction domain can be introduced to the DCI to indicate whether the current scheduling uses one or more new PUSCH power control states, or one or more types of PUSCH power control states.

[0114] Selectively, when an IAB node performs uplink power adjustment / control, in addition to the power control command, it further sends additional power adjustment parameters to adjust the uplink transmit power of the child node MT or UE, and these additional power adjustment parameters are valid only for the currently scheduled PUSCH or for only one power control state.

[0115] Here, the symbol " / " means "and / or".

[0116] In some embodiments, the transmit power information of the physical downlink channel of the IAB parent node DU is Includes energy EPRE information for each resource element in the physical downlink channel.

[0117] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0118] In some embodiments, the range of change of EPRE is, The maximum and / or minimum values ​​of the EPRE of the aforementioned physical downlink channel, The difference between the maximum and minimum EPRE of the aforementioned physical downlink channel, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node synchronization signal block SSB, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node primary synchronization signal block PSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node secondary synchronization signal SSS, The offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node physical broadcast channel PBCH, The CSI-RS includes at least one of the following: the offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node channel state information reference signal CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0119] In some embodiments, the fixed value of EPRE is The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSB, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSS, The offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PBCH, The CSI-RS includes at least one of the following: the EPRE offset value of the physical downlink channel relative to the EPRE transmitted by the IAB parent node CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0120] In some embodiments, the transmit power information of the physical downlink channel is The beam direction of the aforementioned physical downlink channel transmission and The type of information carried to the aforementioned physical downlink channel, The scheduling method for the aforementioned physical downlink channel transmission, The relationship between the physical downlink channel transmission and the time-frequency domain resources is determined by at least one of the above-mentioned characteristics of the physical downlink channel.

[0121] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes the transmit power information of the IAB node, and the transmit power information of the IAB node is Energy EPRE information for each resource element of the sounding reference signal SRS, The physical channel includes at least one of the following: EPRE, and the physical channel includes at least one of the following: physical uplink sharing channel PUSCH, physical uplink control channel PUCCH, and physical random access channel PRACH.

[0122] In some embodiments, the EPRE information includes at least one of a fixed EPRE value and an EPRE variation range.

[0123] In some embodiments, considering that the EPRE of the MT is at the same level as the EPRE of the DU, the EPRE information is replaced with at least one of the following:

[0124] EPRE transmitted by the DU SSB of the aforementioned IAB node, EPRE transmitted by the DU PSS of the aforementioned IAB node, EPRE transmitted by the DU SSS of the aforementioned IAB node, EPRE transmitted by the DU PBCH of the aforementioned IAB node, EPRE transmitted by the DU CSI-RS of the IAB node (the CSI-RS may represent only periodic CSI-RS), EPRE transmitted by the DU PDCCH of the aforementioned IAB node, EPRE transmitted by DU PDSCH of the aforementioned IAB node.

[0125] In some embodiments, the EPRE information is an EPRE for an uplink transmission corresponding to a specific timing.

[0126] In some embodiments, the processor 510 is specifically This involves obtaining auxiliary information related to the transmission parameters of the second IAB node, which are predefined by the protocol (for example, notifying the DU via F1-C signaling or notifying the MT via Radio Resource Control (RRC) signaling), To obtain auxiliary information related to the transmission parameters of the second IAB node notified by the central unit, It is used to perform either of the following: receiving the auxiliary information transmitted by the second IAB node. The transmission of the auxiliary information may be triggered by the first IAB node. For example, the first IAB node sends a request, and after the second IAB node receives the request, it sends the auxiliary information to the first IAB node or CU.

[0127] In some embodiments, the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes the transmission bandwidth of the IAB node mobile terminal MT, and the processor 510 is used to determine the transmission power of the MT based specifically on the transmission power information of the IAB node and the transmission bandwidth of the MT.

[0128] In some embodiments, the processor 510 is specifically The transmission power of the MT is determined to be EPRE1*scheduled BW (where EPRE1 is the EPRE value at the time of transmission of the MT, and scheduled BW is the transmission bandwidth of the MT), It is determined that the transmission power of the MT is greater than or equal to EPREmin*scheduled BW (where EPREmin is the minimum value of EPRE during MT transmission), This is used to perform at least one of the following: determining that the transmission power of the MT is less than or equal to EPREmax*scheduled BW (where EPREmax is the maximum value of EPRE when the MT is transmitted).

[0129] In some embodiments, the processor 510 is used to obtain the transmit power information of the first IAB node itself, and the transmit power information of the first IAB node is The first IAB node DU downlink physical signal and / or channel transmit power information are included.

[0130] In some embodiments, the processor 510 is specifically To obtain transmit power information for the same type of downlink physical channel at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical signal at the time when DU and MT are transmitting simultaneously, To obtain transmit power information for the same type of downlink physical channel at times when DU and MT are transmitting non-simultaneously, This includes at least one of the following: obtaining transmit power information for the same type of downlink physical signal at a time when the DU and MT are transmitting non-simultaneously.

[0131] In some embodiments, the processor 510 further includes, when performing signal measurements of the downlink physical signal, aligning quality measurements taken at times when the DU and MT of the first IAB node are transmitting simultaneously with quality measurements taken at times when they are transmitting non-simultaneously.

[0132] In some embodiments, the downlink physical signal or channel is It includes at least one of SSB, PSS, SSS, PBCH, and CSI-RS. The CSI-RS may represent only periodic CSI-RS.

[0133] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes information on the IAB parent node's transmit beam measured by the IAB node, and the processor 510 is also for selecting a beam based on the auxiliary information.

[0134] In some embodiments, the plurality of beams are At least some of the beams that have quality measurement values ​​above a preset threshold, It includes at least one of a subset of beams that have quality measurements below a predetermined threshold.

[0135] In some embodiments, the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information further includes beams for transmission by the DU of the IAB node at a predetermined time, and the processor 510, Based on the aforementioned auxiliary information, the transmission parameters used for transmission from the IAB node to the MT are determined, and these transmission parameters include at least one of the beam parameters, power parameters, and coding modulation policy parameters. Based on the aforementioned auxiliary information, it is used to perform at least one of the following: determining whether to transmit data to the MT of the IAB node at the predetermined time.

[0136] To assist the parent node in its decision-making, the IAB node may also report interference status for DU-MT beam pairs, and in some embodiments, this auxiliary information further includes interference status for DU-MT beam pairs. The interference status for DU-MT beam pairs may include interference from DU to MT, or from DU to MT, when transmitting using one pair of DU-MT beam pairs. The interference status may also directly reflect whether the IAB node can transmit simultaneously using the DU-MT beam pair. For example, the interference status may be represented in binary, where "0" indicates that the DU-MT beam pair can transmit simultaneously, and "1" indicates that the DU-MT beam pair cannot transmit simultaneously, or vice versa.

[0137] Embodiments of this application further provide a readable storage medium on which a program or instruction is stored, and when this program or instruction is executed by a processor, each process of the embodiment of the transmission parameter management method described above can be realized and the same technical effects can be achieved. To avoid repetition, no further explanation is provided here.

[0138] Here, the processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes computer-readable storage media such as computer read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0139] Embodiments of this application further provide a chip comprising a processor and a communication interface, the communication interface being coupled with the processor, the processor being used to execute programs or instructions and to implement each process of the embodiment of the transmission parameter management method, and achieving the same technical effects. To avoid repetition, no further explanation is provided here.

[0140] It should be understood that the chips referred to in the embodiments of this application may also be called system-level chips, system chips, chip systems, or system-on-a-chip, etc.

[0141] It should be noted that in this specification, the terms “include,” “incorporate,” or any other variation thereof are intended to cover the non-exclusive “include,” thereby including not only those elements, but also other elements not explicitly listed, or elements specific to such process, method, article, or apparatus. Unless otherwise specified, the phrase “includes one of…” does not preclude the presence of other identical elements in a process, method, article, or apparatus containing that element. It should also be noted that the scope of methods and apparatus in embodiments of this application is not limited to performing functions in the illustrated or discussed order, but may include performing functions in a manner that is essentially simultaneous or in a reverse order based on the functions involved, and methods described in a different procedure than those described, for example, may be performed, and various steps may be added, omitted, or combined. Furthermore, features described by reference to some examples may be combined with other examples.

[0142] As will be readily apparent to those skilled in the art from the above description of the embodiments, the methods of the above embodiments can be implemented in the form of software and a necessary general-purpose hardware platform. Of course, they may also be implemented in hardware, but in many cases the former is a more preferred embodiment. With this understanding in mind, the technical invention of this application may be embodied in the form of a software product, either substantially or in part with respect to the prior art. This computer software product is stored on a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and contains some instructions for causing a terminal (which may be a mobile phone, computer, server, or network device, etc.) to perform the methods of each embodiment of this application.

[0143] The above describes embodiments of this application, accompanied by drawings; however, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can, by the suggestion of this application, make many forms, as long as they do not deviate from the spirit and scope protected by the claims of this application, and all of these fall within the scope of protection of this application.

Claims

1. 1. A transmission parameter management method performed by a first self-backhauled IAB node, comprising: obtaining aiding information related to transmission parameters of a second IAB node and / or aiding information related to measurement parameters; determining transmission parameters based on the auxiliary information.

2. The first IAB node is an IAB node, the second IAB node is an IAB parent node, and the auxiliary information includes transmit power information of a distributed unit DU of the IAB parent node, and the transmit power information of the IAB parent node DU is: The transmission parameter management method according to claim 1 , further comprising transmission power information of a physical downlink channel, the physical downlink channel including a physical downlink shared channel (PDSCH) and / or a physical downlink control channel (PDCCH).

3. The step of determining transmission parameters based on the auxiliary information includes: The transmission parameter management method of claim 2, further comprising determining an uplink power control parameter of the IAB node DU based on the auxiliary information, wherein independent power control parameters and / or power control processes are adopted for timings when the IAB parent node DU and the MT receive simultaneously.

4. The transmission power information of the physical downlink channel of the IAB parent node DU is The transmission parameter management method according to claim 2, wherein the transmission parameter management method comprises information on the energy of each resource element of the physical downlink channel (EPRE).

5. The transmission parameter management method according to claim 4 , wherein the EPRE information includes at least one of an EPRE fixed value and an EPRE variation range.

6. The change range of the EPRE is: a maximum value and / or a minimum value of the EPRE of the physical downlink channel; a difference between a maximum value and a minimum value of EPRE of the physical downlink channel; an offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node synchronization signal block SSB; an offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node primary synchronization signal block PSS; an offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node secondary synchronization signal SSS; an offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node physical broadcast channel PBCH; and an offset range of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node channel state information reference signal CSI-RS.

7. The fixed value of EPRE is an offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSB; an offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PSS; an offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node SSS; an offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by the IAB parent node PBCH; and an offset value of the EPRE of the physical downlink channel relative to the EPRE transmitted by an IAB parent node CSI-RS.

8. The transmission power information of the physical downlink channel is a beam direction of the physical downlink channel transmission; the type of information carried on the physical downlink channel; and a scheduling scheme for the physical downlink channel transmission; The transmission parameter management method according to claim 2 , wherein the time-frequency domain resource of the physical downlink channel transmission and the transmission parameter management are determined based on at least one of the characteristics of the physical downlink channel.

9. the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes transmit power information of the IAB node, and the transmit power information of the IAB node is: Energy EPRE information of each resource element of the sounding reference signal SRS; 2. The transmission parameter management method according to claim 1, further comprising EPRE information of physical channels including at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical random access channel (PRACH).

10. The transmission parameter management method according to claim 9, wherein the EPRE information includes at least one of an EPRE fixed value and an EPRE variation range.

11. The EPRE information is an EPRE transmitted by the DU SSB of said IAB node; an EPRE transmitted by the DU PSS of said IAB node; and an EPRE sent by the DU SSS of said IAB node; an EPRE transmitted by the DU PBCH of the IAB node; and an EPRE transmitted by the DU CSI-RS of the IAB node; an EPRE transmitted by a DU PDCCH of the IAB node; and The transmission parameter management method of claim 9, wherein the method is replaced by adopting at least one of an EPRE transmitted by a DU PDSCH of the IAB node.

12. The transmission parameter management method according to claim 9, wherein the EPRE information is an EPRE transmitted via an uplink corresponding to a specific timing.

13. Obtaining the auxiliary information related to the transmission parameters of the second IAB node includes: obtaining auxiliary information related to transmission parameters of the second IAB node predefined by a protocol; obtaining auxiliary information related to transmission parameters of the second IAB node notified by a centralization unit; and receiving the auxiliary information transmitted by the second IAB node.

14. The first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes a transmission bandwidth of a mobile terminal MT of the IAB node, and determining transmission parameters based on the auxiliary information comprises: The transmission parameter management method of claim 1 , comprising determining a transmission power of the MT based on transmission power information of the IAB node and a transmission bandwidth of the MT.

15. The transmission power of the MT is determined by: determining the transmit power of the MT to be EPRE1*scheduled BW, where EPRE1 is the EPRE value at the time of transmission of the MT, and scheduled BW is the transmit bandwidth of the MT; determining that the transmit power of the MT is greater than or equal to EPREmin*scheduled BW, where EPREmin is the minimum value of EPRE when the MT is transmitting; 15. The method of claim 14, further comprising at least one of determining that the transmission power of the MT is equal to or less than EPREmax*scheduled BW, where EPREmax is the maximum value of EPRE when the MT transmits.

16. and further comprising obtaining transmit power information of the first IAB node itself, the transmit power information of the first IAB node being: The transmission parameter management method of claim 1 , further comprising transmitting power information of the first IAB node DU downlink physical signal and / or channel.

17. The first IAB node obtains its own transmit power information by: Obtaining transmission power information of the same type of downlink physical channel at the time when the DU and the MT are transmitting simultaneously; Obtaining transmission power information of the same type of downlink physical signal at the time when the DU and the MT are simultaneously transmitting; Obtaining transmission power information of the same type of downlink physical channel at a time when the DU and the MT are transmitting non-simultaneously; The transmission parameter management method of claim 16, further comprising at least one of: obtaining transmission power information of the same type of downlink physical signal at a time when the DU and MT are transmitting non-simultaneously.

18. moreover, The transmission parameter management method of claim 16, further comprising, when performing signal measurements of a downlink physical signal, performing an alignment operation between quality measurements measured at a time when the DU and MT of the first IAB node are transmitting simultaneously and quality measurements measured at a time when they are not transmitting simultaneously.

19. The downlink physical signal or channel is The transmission parameter management method according to claim 16, comprising at least one of SSB, PSS, SSS, PBCH, and CSI-RS.

20. the first IAB node is an IAB parent node, the second IAB node is an IAB node, and the auxiliary information includes information regarding a transmit beam of the IAB parent node measured by the IAB node, the method comprising: The method of claim 1 , further comprising selecting a beam based on the aiding information.

21. The beam is At least some of the beams having a quality measurement value equal to or greater than a predetermined threshold; 21. The method of claim 20, further comprising at least one of: at least some of the beams having a quality measurement value below a preset threshold.

22. The first IAB node is an IAB parent node, the second IAB node is an IAB node, and the auxiliary information further includes a beam to be used by a DU of the IAB node to transmit at a preset time, and the method includes: determining transmission parameters to be used for transmitting to the MT of the IAB node based on the aiding information, the transmission parameters including at least one of a beam parameter, a power parameter, and a coding modulation policy parameter; and determining whether to transmit data to the MT of the IAB node at the preset time based on the auxiliary information.

23. The transmission parameter management method of claim 1 , wherein the auxiliary information further includes an interference situation of a DU MT beam pair.

24. A transmission parameter management device for use in a first self-backhaul IAB node, comprising: an acquisition module for acquiring auxiliary information related to transmission parameters of the second IAB node and / or auxiliary information related to measurement parameters; a processing module for determining transmission parameters based on the auxiliary information.

25. The first IAB node is an IAB node, the second IAB node is an IAB parent node, and the auxiliary information includes transmit power information of the IAB parent node distributed unit DU, and the transmit power information of the IAB parent node DU is: The transmission parameter management device according to claim 24, further comprising transmission power information of a physical downlink channel, the physical downlink channel including a physical downlink shared channel (PDSCH) and / or a physical downlink control channel (PDCCH).

26. the first IAB node is an IAB parent node, the second IAB node is an IAB node, the auxiliary information includes transmit power information of the IAB node, and the transmit power information of the IAB node is Energy EPRE information of each resource element of the sounding reference signal SRS; The transmission parameter management device according to claim 24, further comprising EPRE information of physical channels including at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical random access channel (PRACH).

27. 25. The transmission parameter management device of claim 24, wherein the first IAB node is an IAB node, the second IAB node is an IAB parent node, the auxiliary information includes a transmission bandwidth of a mobile terminal MT of the IAB node, and the processing module is specifically used to determine the transmission power of the MT based on transmission power information of the IAB node and the transmission bandwidth of the MT.

28. The acquisition module is further used to acquire the transmission power information of the first IAB node itself, and the transmission power information of the first IAB node is:

25. The transmission parameter management device according to claim 24, comprising transmission power information of the first IAB node DU downlink physical signal and / or channel.

29. 24. An electronic device comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method of any one of claims 1 to 23.

30. A readable storage medium having stored thereon a program or instructions, which, when executed by a processor, implements the steps of the method of any one of claims 1 to 23.

31. A chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, the processor being used to execute programs or instructions, and implementing the steps of the method of any one of claims 1 to 23.

32. A computer program product, wherein the program product is stored on a non-volatile storage medium, and wherein the program product, when executed by at least one processor, implements the steps of the method of any one of claims 1 to 23.

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