Multiplexing method, apparatus, device, and storage medium

Abstract

The application provides a multiplexing method, device, equipment and storage medium, comprising: sending measurement configuration information to a second node, wherein the measurement configuration information is used for instructing the second node to measure related information of a resource corresponding to the measurement configuration information; and receiving a measurement result sent by the second node.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a multiplexing method, device, node and storage medium. Background Art

[0002] An Integrated Access Backhaul (IAB) node consists of a Mobile Termination (MT) unit and a Distributed Unit (DU). The IAB node connects to the parent node through the MT. The parent node is called the parent node. The link between the IAB MT and the parent node is called the upstream link, and the link between the IAB DU and the next-level node or terminal is called the downstream link.

[0003] IAB nodes simultaneously transmit upstream (Upstream Tx) and transmit downstream (Downstream Tx). They also receive upstream (Upstream Rx) and receive downstream (Downstream Rx). During simultaneous transmission or reception, how to avoid interference between the two links is a pressing issue. Summary of the Invention

[0004] The present application provides a method, apparatus, node, and storage medium for multiplexing to coordinate interference between two links when an IAB node performs simultaneous transceiver operations.

[0005] In a first aspect, the embodiments of the present application provide a multiplexing method.

[0006] The method is applied to a first node and includes:

[0007] Sending measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0008] Receive the measurement result sent by the second node.

[0009] In a second aspect, an embodiment of the present application provides a multiplexing method, which is applied to a second node and includes:

[0010] receiving measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information;

[0011] Send the measurement result to the first node.

[0012] In a third aspect, an embodiment of the present application provides a multiplexing device, which is configured at a first node and includes:

[0013] A first sending module is configured to send measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0014] The first receiving module is configured to receive the measurement result sent by the second node.

[0015] In a fourth aspect, an embodiment of the present application provides a multiplexing device, which is configured at a second node and includes:

[0016] A second receiving device is configured to receive measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information;

[0017] The second sending module is configured to send the measurement result to the first node.

[0018] In a fifth aspect, an embodiment of the present application provides a device, including:

[0019] one or more processors;

[0020] a memory for storing one or more programs;

[0021] When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the methods provided in the embodiments of the present application.

[0022] In a sixth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of the embodiments of the present application is implemented.

[0023] With respect to the above embodiments and other aspects of the present application and their implementation, further description is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the relationships and links between nodes in the IAB network;

[0025] Figure 2This is a flowchart of the multiplexing method provided in an embodiment of the present application;

[0026] Figure 3 This is a flowchart of the multiplexing method provided in an embodiment of the present application;

[0027] Figure 4 is a schematic diagram of the period of the reference signal provided in an embodiment of the present application;

[0028] Figure 5 is a schematic diagram of the time offset of the reference signal provided in an embodiment of the present application;

[0029] Figure 6 Schematic diagram of the effective measurement duration of the reference signal provided in an embodiment of the present application;

[0030] Figure 7 This is a schematic diagram of the timing deviation between upstream and downstream transmissions of an IAB node provided in an embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of an IAB node specifying configuration rules for a parent node provided by an embodiment of the present application;

[0032] Figure 9 This is a schematic diagram of an IAB node receiving data from two links simultaneously with interference, as provided by an embodiment of the present application;

[0033] Figure 10 Schematic diagram of the corresponding relationship between resources and reference signals provided in an embodiment of the present application;

[0034] Figure 11 is a schematic structural diagram of a multiplexing device provided in an embodiment of the present application;

[0035] Figure 12 It is a structural diagram of the multiplexing method provided in an embodiment of the present application;

[0036] Figure 13 It is a structural diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of this application more clear, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other in any way.

[0038] The steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be performed in an order different from that shown here.

[0039] First, the relationship and links between nodes in the IAB network are described.

[0040] Figure 1 It is a schematic diagram of the relationship and links between nodes in the IAB network, such as Figure 1 As shown, the three nodes from top to bottom are respectively called parent node, IAB node and child node or user equipment (UE). Figure 1 The node served by the IAB node is the UE or child node.

[0041] In Rel-16, IAB nodes prioritize upstream and downstream time-division multiplexing (TDM), but the protocol also supports other multiplexing methods, such as frequency division multiplexing (FDM), space division multiplexing (SDM), and full-duplex. The IAB's distributed unit (DU) acts as a base station, providing network services to child nodes or terminals downstream. The IAB's mobile equipment (MT) connects to its parent node upstream.

[0042] DU resources are resources used by the DU unit of an IAB node to serve child nodes or terminals. For example, DU DL resources are resources used by the DU unit of an IAB node to transmit downstream data for child nodes or terminals. The MT resources of an IAB node are semi-statically configured on the network side and dynamically indicated by signaling from the parent node. The resources used by the DU unit of an IAB node for downstream transmission may correspond to the upstream transmission resources of the MT, allowing the IAB node to perform both downstream and upstream transmissions on such resources. The resources used by the DU unit of an IAB node for downstream reception may correspond to the upstream reception resources of the MT, allowing the IAB node to perform both downstream and upstream receptions on such resources.

[0043] An effective solution is needed to avoid or coordinate the interference between the two links that are receiving or transmitting at the same time, otherwise the performance of downstream and upstream transmission of the IAB node will be affected.

[0044] In one embodiment, a multiplexing method is provided, wherein the method is applied to a first node, such as Figure 2 As shown, the multiplexing method provided in the embodiment of the present application mainly includes steps S11 and S12.

[0045] S11. Send measurement configuration information to the second node, where the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0046] S12. Receive a measurement result sent by the second node, where the measurement result is used by the first node to perform link transmission multiplexing.

[0047] In this embodiment, the first node is Figure 1 The second node is as shown in Figure 1 Alternatively, the second node is as shown in Figure 1 The child node or UE shown in .

[0048] The measurement configuration information is sent by the IAB node to the parent node. The parent node performs measurements based on the measurement configuration information and feeds back the measurement results to the IAB node. When the IAB node performs both upstream and downstream transmissions, it selects the beam that causes the least interference to the parent node for downstream transmission based on the measurement results.

[0049] In this embodiment, the measurement result fed back by the parent node to the IAB node includes at least one of the following: resource index, received power of the corresponding resource, path loss of the corresponding resource, reference signal received power (RSRP) of the corresponding resource, reference signal received quality (RSRQ) or signal to interference plus noise ratio (SINR) or channel quality indicator (CQI) of the reference signal received by the parent node from the upstream of the IAB node.

[0050] In one embodiment, the measurement configuration information includes first measurement configuration information and second measurement configuration information, wherein the measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, or the measurement configuration information includes time-frequency resource configuration information for the second node to measure a time-frequency resource. The second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the measurement by the second node.

[0051] In one embodiment, when the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, the reference signal configuration information includes one or more of the following:

[0052] Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

[0053] In one embodiment, the type of the reference signal includes one or more of the following:

[0054] Sounding reference signal SRS, channel state information reference signal CSI-RS, synchronization broadcast block SSB, control channel reference signal PDCCH DMRS, traffic channel reference signal PDSCH DMRS.

[0055] In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the time-frequency resource configuration information includes one or more of the following:

[0056] The channel type corresponding to the time-frequency resource, frequency domain configuration information, time configuration information, and whether the time limit is enabled.

[0057] In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the second measurement configuration information includes one or more of the following:

[0058] Quasi-co-site reference signal corresponding to time-frequency resources, spatial reception parameters.

[0059] In one embodiment, the time configuration information includes an occurrence timing, an effective time, and a timing deviation, wherein the effective time is the effective time for the second node to perform a measurement operation, and the timing deviation is the amount of time adjusted for the second node to perform the measurement operation, specifically, a timing deviation value adjusted based on the communication timing between the second node and the first node, for example, the second node adjusts based on the timing of receiving a reference signal sent upstream by the first node.

[0060] Furthermore, the first time configuration information includes a first occurrence opportunity, a first effective time and a first timing deviation, wherein the first effective time is the effective time of the second node measurement reference signal, and the timing deviation is the amount of time adjusted by the second node measurement reference signal.

[0061] Furthermore, the second time configuration information includes a second occurrence time, a second effective time and a second timing deviation, wherein the second effective time is the effective time for the second node to measure the time-frequency resources, and the second timing deviation is the amount of time adjusted by the second node to measure the time-frequency resources.

[0062] In one embodiment, the effective time includes one or more of the following:

[0063] Valid measurement duration, starting point, offset. In one embodiment, whether the time limit is enabled indicates whether the second node can average over multiple measurement cycles when performing the measurement operation.

[0064] Specifically, if the time limit is enabled, it indicates that the second node cannot average over multiple measurement cycles when performing the measurement operation. Specifically, if the time limit is not enabled, it indicates that the second node can average over multiple measurement cycles when performing the measurement operation. In one embodiment, the quasi-co-site reference signal indicates that the second node reference signal measurement configuration information and the quasi-co-site reference signal satisfy a quasi-co-site relationship. The quasi-co-site reference signal indicates that the second node time-frequency resource measurement configuration information and the quasi-co-site reference signal satisfy a quasi-co-site relationship.

[0065] For example, the CSI-RS and the quasi-co-location reference signal satisfy a quasi-co-location relationship with respect to at least one of the following parameters: 1) Doppler shift 2) Doppler spread 3) average delay 4) delay spread 5) spatial reception parameter.

[0066] In one embodiment, the measurement results include: the receiving power of the resources corresponding to the first measurement configuration information, the receiving power of the resources corresponding to the first measurement configuration information and the second measurement configuration information, the path loss value corresponding to the first measurement configuration information, the path loss value of the resources corresponding to the first measurement configuration information and the second measurement configuration information, and the link quality between the second node and the first node measured in the second measurement configuration information.

[0067] In one embodiment, the received power satisfies one of the following conditions:

[0068] The signal receiving power of the first measurement configuration information is greater than or equal to the first threshold;

[0069] The signal receiving power of the first measurement configuration information is less than or equal to the second threshold;

[0070] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is greater than or equal to a third threshold;

[0071] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is less than or equal to a fourth threshold.

[0072] In one embodiment, the path loss value satisfies one of the following conditions:

[0073] The path loss value corresponding to the signal of the first measurement configuration information is greater than or equal to a fifth threshold;

[0074] The path loss value corresponding to the signal of the first measurement configuration information is less than or equal to a sixth threshold;

[0075] The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is greater than or equal to a seventh threshold;

[0076] A ratio of a path loss value corresponding to a signal of the first measurement configuration information to a path loss value between the second node and the first node is less than or equal to an eighth threshold value.

[0077] The link quality between the second node and the first node measured in the second measurement configuration information is less than or equal to a ninth threshold.

[0078] The link quality between the second node and the first node measured in the second measurement configuration information is greater than or equal to a tenth threshold.

[0079] In one embodiment, the first node is an integrated access and backhaul IAB node, and the second node is a parent node of the IAB node, or the second node is a child node of the IAB node.

[0080] In one embodiment, when the second node is a parent node of the IAB node, after receiving the measurement result sent by the second node, the method further includes:

[0081] A beam combination that meets the requirements is selected based on the measurement result to perform simultaneous upstream and downstream transmission.

[0082] The IAB node performs downstream transmission and upstream transmission simultaneously, and its downstream transmission avoids the beam that interferes with the parent node.

[0083] In one embodiment, when the second node is a child node of the IAB node, after receiving the measurement result sent by the second node, the method further includes:

[0084] A beam combination that meets the requirements is selected based on the measurement result to perform simultaneous upstream and downstream reception.

[0085] The IAB node performs downstream reception and upstream reception simultaneously, and the transmission corresponding to the upstream reception avoids interference with the downstream reception.

[0086] In one embodiment, a multiplexing method is provided, wherein the multiplexing method is applied to the second node, such as Figure 3 As shown, the multiplexing method provided in the embodiment of the present application mainly includes steps S21 and S22.

[0087] S21. Receive measurement configuration information sent by a first node, where the measurement configuration information is used to instruct a second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0088] S22. Send the measurement result to the first node.

[0089] In this embodiment, the first node is Figure 1 The second node is as shown in Figure 1Alternatively, the second node is as shown in Figure 1 In this embodiment, the parent node needs to perform measurements based on the measurement configuration information, and the quantities that the parent node needs to measure include at least one of the following: Reference Signal Receiving Power (RSRP), target link quality, path loss value, and Signal to Interference Ratio (SIR).

[0090] The RSRP may be the RSRP of the reference signal in the measurement configuration information, or the RSRP of the reference signal (eg, SRS, DMRS, CSI-RS, etc.) sent upstream by the IAB node.

[0091] The path loss value is a path loss value corresponding to a reference signal measured by the parent node according to resources in the measurement configuration information, or a path loss value between the IAB node and the parent node measured by the parent node.

[0092] In one embodiment, the measurement configuration information includes first measurement configuration information and second measurement configuration information, wherein the measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, or the measurement configuration information includes time-frequency resource configuration information for the second node to measure a time-frequency resource. The second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement. In one embodiment, when the measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, the reference signal configuration information includes one or more of the following:

[0093] Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

[0094] In one embodiment, the type of the reference signal includes one or more of the following:

[0095] Channel State Information Reference Signal CSI-RS, Synchronization Broadcast Block SSB, Control Channel Reference Signal PDCCH DMRS, Traffic Channel Reference Signal PDSCH DMRS. In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the time-frequency resource configuration information includes one or more of the following:

[0096] The channel type corresponding to the time-frequency resource, frequency domain configuration information, time configuration information, and whether the time limit is enabled.

[0097] In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the second measurement configuration information includes one or more of the following:

[0098] Quasi-co-site reference signal corresponding to time-frequency resources, spatial reception parameters.

[0099] In one embodiment, the timing configuration information includes one or more of the following: an occurrence timing, a valid time, and a timing offset. The valid time is the effective time for the second node to perform a measurement operation, and the timing offset is the amount of time adjusted by the second node to perform the measurement operation. Specifically, the timing offset value is adjusted based on the communication timing between the second node and the first node, for example, the second node adjusts the timing based on the timing of receiving a reference signal sent upstream by the first node.

[0100] Furthermore, the first time configuration information includes a first occurrence opportunity, a first effective time and a first timing deviation, wherein the first effective time is the effective time of the second node measurement reference signal, and the timing deviation is the amount of time adjusted by the second node measurement reference signal.

[0101] Furthermore, the second time configuration information includes a second occurrence time, a second effective time and a second timing deviation, wherein the second effective time is the effective time for the second node to measure the time-frequency resources, and the second timing deviation is the amount of time adjusted by the second node to measure the time-frequency resources.

[0102] In one embodiment, the effective time includes one or more of the following:

[0103] Valid measurement duration, starting point, offset. In one embodiment, whether the time limit is enabled indicates whether the second node can average over multiple measurement cycles when performing the measurement operation.

[0104] Specifically, if the time limit is enabled, it indicates that the second node cannot average over multiple measurement cycles when performing the measurement operation. Specifically, if the time limit is not enabled, it indicates that the second node can average over multiple measurement cycles when performing the measurement operation. In one embodiment, the quasi-co-site reference signal indicates that the second node reference signal measurement configuration information and the quasi-co-site reference signal satisfy a quasi-co-site relationship. The quasi-co-site reference signal indicates that the second node time-frequency resource measurement configuration information and the quasi-co-site reference signal satisfy a quasi-co-site relationship.

[0105] For example, the CSI-RS and the quasi-co-location reference signal satisfy a quasi-co-location relationship with respect to at least one of the following parameters: 1) Doppler shift 2) Doppler spread 3) average delay 4) delay spread 5) spatial reception parameter.

[0106] In one embodiment, the measurement results include: the receiving power of the resources corresponding to the first measurement configuration information, the receiving power of the resources corresponding to the first measurement configuration information and the second measurement configuration information, the path loss value corresponding to the first measurement configuration information, the path loss value of the resources corresponding to the first measurement configuration information and the second measurement configuration information, and the link quality between the second node and the first node measured in the second measurement configuration information.

[0107] In one embodiment, the received power satisfies one of the following conditions:

[0108] The signal receiving power of the first measurement configuration information is greater than or equal to the first threshold;

[0109] The signal receiving power of the first measurement configuration information is less than or equal to the second threshold;

[0110] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is greater than or equal to a third threshold;

[0111] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is less than or equal to a fourth threshold.

[0112] In one embodiment, the path loss value satisfies one of the following conditions:

[0113] The path loss value corresponding to the signal of the first measurement configuration information is greater than or equal to a fifth threshold;

[0114] The path loss value corresponding to the signal of the first measurement configuration information is less than or equal to a sixth threshold;

[0115] The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is greater than or equal to a seventh threshold;

[0116] A ratio of a path loss value corresponding to a signal of the first measurement configuration information to a path loss value between the second node and the first node is less than or equal to an eighth threshold value.

[0117] The link quality between the second node and the first node measured in the second measurement configuration information is less than or equal to a ninth threshold.

[0118] The link quality between the second node and the first node measured in the second measurement configuration information is greater than or equal to a tenth threshold.

[0119] In one embodiment, an IAB node is provided to report a Channel State Information Reference Signal (CSI-RS) to a parent node, which needs to be measured by the parent node.

[0120] When an IAB node performs upstream and downstream transmissions simultaneously, they may interfere with each other. For example, the IAB node's downstream transmissions may interfere with the parent node's reception of the IAB node's upstream transmissions. To address this issue, the following solution is proposed.

[0121] The IAB node reports measurement configuration information to the parent node, the parent node performs measurement based on the measurement configuration information, and the parent node feeds back the measurement results to the IAB node.

[0122] When an IAB node performs upstream and downstream transmissions simultaneously, the downstream transmission uses a beam that causes less interference to the parent node.

[0123] Specifically, the measurement configuration information includes one or more resource sets, and each resource set includes one or more reference signal resource configuration information.

[0124] The reference signal resource configuration information includes at least one of the following: time configuration information, frequency domain configuration information, sequence configuration information, transmit power configuration information, corresponding quasi-co-site reference signal configuration information or corresponding spatial reception parameters.

[0125] The reference signal may be any one of CSI-RS, synchronization signal block (SSB), demodulation reference signal (DMRS), phase tracking reference signal (PTRS), and the like.

[0126] The quantities that the parent node needs to measure include at least one of the following: Reference Signal Receiving Power (RSRP), target link quality, path loss value, and Signal to Interference Ratio (SIR).

[0127] The RSRP may be the RSRP of the reference signal in the measurement configuration information, or the RSRP of the reference signal (eg, SRS, DMRS, CSI-RS, etc.) sent upstream by the IAB node.

[0128] The target link quality is the link quality received by the parent node from the upstream IAB node, including the reference signal receiving quality (RSRQ), the signal to interference plus noise ratio (SINR) of the reference signal, or the channel quality indication (CQI) of the reference signal.

[0129] SIR is the ratio of Ps to Pi, where Ps is the received power of the reference signal sent upstream by the parent node, and Pi is the received power of the reference signal sent downstream by the parent node. Power is expressed in dB, so the power ratio corresponds to the difference in dB.

[0130] The path loss value is a path loss value corresponding to a reference signal measured by the parent node according to resources in the measurement configuration information, or a path loss value between the IAB node and the parent node measured by the parent node.

[0131] The measurement result fed back by the parent node to the IAB node includes at least one of the following: resource index, received power of the corresponding resource, path loss of the corresponding resource, RSRP of the corresponding resource, RSRQ or SINR or CQI of the reference signal sent upstream by the IAB node received by the parent node, and SINR of the reference signal sent upstream by the IAB node received by the parent node.

[0132] The parent node determines the measurement result based on at least one of the following ways: feeding back the quantity that meets the threshold condition; feeding back the quantity that meets the threshold condition and one or more related measurement quantities.

[0133] The IAB node performs downstream transmission and upstream transmission simultaneously, and its downstream transmission avoids the beam that interferes with the parent node.

[0134] Specifically, the time configuration information of the reference signal resource configuration information includes at least one of the following: a reference signal period, a reference signal time offset, a reference signal effective measurement time, and a timing offset between downstream and upstream IAB node transmissions.

[0135] Among them, such as Figure 4 As shown, the reference signal period (denoted as P) is the period at which the IAB node sends the reference signal. Figure 5 As shown, the time offset of the reference signal refers to the time offset with the starting point of period P as the boundary. The time offset can be at least one of several radio frames, several subframes, several time slots, and several OFDM symbols. Figure 6As shown in FIG, the valid reference signal measurement duration indicates the valid time for the parent node to perform reference signal measurement. If the IAB node does not send a reference signal outside the valid time or the beam or transmit power changes, the IAB node notifies the parent node of the valid time for performing reference signal measurement.

[0136] The timing offset between the reference signal and the IAB node upstream is the time difference between the reference signal transmission timing of the IAB node downstream and the transmission timing of the IAB node upstream. The timing offset is a number of OFDM symbols or a number of time domain samples (Tc or Ts) or a number of OFDM symbols and a number of time domain samples. Figure 7 As shown, there may be a timing offset between the IAB node's upstream and downstream transmissions. When the IAB node reports the reference signal to be measured to the parent node, the IAB node reports the timing offset between the upstream and downstream transmissions. The offset is the difference between the IAB node's upstream transmission time and the IAB node's downstream transmission time, or the difference between the IAB node's downstream transmission time and the IAB node's upstream transmission time. The parent node uses the timing of the received IAB node's upstream transmission as a reference to delay or advance the timing offset to measure the reference signal to be measured reported by the IAB node.

[0137] The frequency domain configuration information of the reference signal resource configuration includes at least one of the following: carrier information of the reference signal, bandwidth occupied by the reference signal, frequency domain density of the reference signal, subcarrier spacing of the reference signal, and frequency domain offset of the reference signal.

[0138] The carrier information of the reference signal is the absolute carrier number or the carrier offset between the carrier of the reference signal to be measured and the carrier corresponding to the IAB node MT. The carrier offset is the number of RBs or the number of subcarriers (SCs) or the number of resource blocks (RBs) and SCs.

[0139] The frequency domain offset of the reference signal refers to the offset of the reference signal within the RB.

[0140] The RB size and SC size of the carrier offset are determined by the reference subcarrier spacing (reference SC). For example, the reference subcarrier spacing is 15*2^u, where u is a natural number greater than or equal to 0. u can be a value agreed upon between nodes, a value used in the communication process between the parent node and the IAB node, or a value notified to the parent node by the IAB node, OAM, or CU.

[0141] The reference signal sequence configuration information includes at least one of the following: a reference signal sequence type, and a reference signal sequence generation method.

[0142] The reference signal sequence generation method includes a sequence generation method and initialization parameters for generating a reference signal. For example, the CSI-RS sequence generation method and initialization are as follows:

[0143]

[0144]

[0145]

[0146]

[0147] Among them, Equation 1 is the method for generating a random sequence. The initial sequence of the random sequence is determined by the initial value of the sequence. Then, as shown in Equation 2, the reference signal sequence is generated based on the random sequence as shown in Equation 3, and the initial value used for sequence generation is shown in Equation 4. The sender and the measurer can agree on the method for generating the random sequence, and the IAB node does not need to report the method for generating the sequence to the parent node; if the sender and the measurer agree on the method for generating the initial value of the sequence, the IAB node does not need to report the method for generating the initial value of the sequence to the parent node; if the time of the upstream transmission of the IAB node and the downstream transmission of the IAB node are aligned, the parent node can determine the time-related variables of the sequence initialization value based on its own timing. For example, where is the OFDM symbol number within the time slot, is the time slot number within a radio frame. and are variables for further configuring the sequence, used for interference randomization or quasi-orthogonal multi-user transmission.

[0148] like Figure 8 As shown, if the centralized control unit (CU) or operation administration and maintenance (OAM) of the wireless network specifies the CSI-RS configuration of the IAB node for the parent node, the IAB node does not need to inform the parent node about the mapping location of the IAB node's CSI-RS. The IAB node reports the index number of the corresponding resource to the parent node, and the parent node can determine the location of the resource to be measured.

[0149] The transmit power of the reference signal is the transmit power of the reference signal sent downstream by the IAB node.

[0150] The parent node measures the reference signal in the resource set of the measurement configuration reported by the IAB node or the reference signal sent upstream by the IAB node according to the receive beam corresponding to the resource set of the measurement configuration reported by the IAB node. If the reference signal configuration of the measurement configuration reported by the IAB node does not include the corresponding quasi-co-site reference signal configuration or the corresponding spatial reception parameter, the parent node performs corresponding measurement according to the historical reception parameters of the IAB node. The measurement quantity includes at least one of the following: RSRP, RSRQ, SINR, path loss, and SIR.

[0151] The parent node feeds back to the IAB node the resource set index corresponding to the measurement quantity that meets the threshold, where the threshold is at least one of the following: the measurement quantity is greater than or equal to a specific threshold, the measurement quantity is less than or equal to a specific threshold, the measurement quantity is greater than a specific threshold, and the measurement quantity is less than a specific threshold.

[0152] The parent node measures the RSRP of the reference signal in the resource set, denoted as RSRP_i. The parent node feeds back the resource set index corresponding to the RSRP_i that meets the threshold to the IAB node. The threshold corresponding to RSRP_i is denoted as threshold_1. RSRP_i can be the average RSRP value of the reference signals of different resources in a resource set, the minimum RSRP value of the reference signals of different resources in a resource set, or the maximum RSRP value of the reference signals of different resources in a resource set. Optionally, the parent node feeds back the RSRP_i value that meets the threshold to the IAB node.

[0153] The parent node measures the channel quality of the reference signal sent upstream by the IAB node. Channel quality can be characterized by one of the following quantities: RSRQ, SINR, or CQI. The corresponding measurement results are recorded as RSRQ_s, SINR, or CQI, respectively. The parent node feeds back the index of the resource set corresponding to the measurement result that meets the threshold to the IAB node. The threshold corresponding to RSRQ_s, SINR, or CQI is recorded as threshold_2. Optionally, the parent node feeds back the RSRQ_s value, SINR value, or CQI value that meets the threshold to the IAB node.

[0154] The parent node measures the reference signal path loss value in the resource set, denoted as PL_i. The parent node feeds back the resource set index corresponding to the PL_i that meets the threshold to the IAB node, and the threshold corresponding to RSRP_i is denoted as threshold_3. PL_i can be the average value of the reference signal path loss of different resources in a resource set, or when the parent node feeds back the resource set index corresponding to the path loss greater than, equal to, or greater than the threshold value, the path loss value can also be the minimum value of the reference signal path loss of different resources in a resource set, or when the parent node feeds back the resource set index corresponding to the path loss less than, equal to, or less than the threshold value, the path loss value can also be the maximum value of the reference signal path loss of different resources in a resource set. Optionally, the parent node can feed back the RSRP_i value that meets the conditions to the IAB node.

[0155] The parent node measures the path loss corresponding to the reference signal sent upstream by the IAB node, denoted as PL_s. The parent node also measures the path loss of the reference signal in the resource set, denoted as PL_i. The ratio of PL_s to PL_i is denoted as SIR_PL = PL_s / PL_i. The parent node feeds back the resource set index corresponding to the SIR_PL that meets the threshold to the IAB node. The threshold corresponding to the SIR_PL is denoted as threshold_4. Optionally, the parent node can also feed back the SIR_PL value that meets the threshold to the IAB node.

[0156] The parent node measures the received power (PS) of the reference signal sent upstream by the IAB node, denoted as Ps. For example, the parent node measures the received power of the SRS signal sent upstream by the IAB node. The parent node measures the received power of the reference signal in the resource set, denoted as Pi. The ratio of Ps to Pi is denoted as the measurement quantity SIR = Ps / Pi. The parent node feeds back to the IAB node the index of the resource set corresponding to the SIR that meets the threshold, with the corresponding SIR threshold being denoted as threshold_5. Optionally, the parent node can also feed back the SIR value that meets the threshold to the IAB node.

[0157] When the IAB node receives feedback from the parent node in one of the following situations or a combination thereof, the IAB node considers that the IAB downstream transmission of the corresponding resource set index interferes with the parent node's reception:

[0158] The parent node feedback RSRP_i is greater than or equal to threshold_1 corresponding to the resource set index;

[0159] The parent node feedback RSRQ_s or SINR or CQI is less than or equal to threshold_2 corresponding to the resource set index

[0160] The parent node feedback PL_i is less than or equal to threshold_3 corresponding to the resource set index;

[0161] The parent node feeds back the corresponding resource set index whose SIR_PL is less than or equal to threshold_4;

[0162] The parent node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0163] When the IAB node receives feedback from the parent node in one of the following situations or a combination thereof, the IAB node deems that the IAB downstream transmission of the corresponding resource set index does not interfere with the parent node's reception:

[0164] The parent node feedback RSRP_i is less than or equal to threshold_1 corresponding to the resource set index;

[0165] The parent node feedback RSRQ_s or SINR or CQI is greater than or equal to threshold_2 corresponding to the resource set index;

[0166] The parent node feedback PL_i is greater than or equal to threshold_3 corresponding to the resource set index;

[0167] The parent node feedback SIR_PL is less than or equal to threshold_4 corresponding to the resource set index;

[0168] The parent node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0169] The above-mentioned SIR or SIR_PL is defined as the ratio of two quantities. If the two values ​​being compared are dB values, then the subtraction of the two quantities used to calculate the SIR or SIR_PL is the ratio.

[0170] The IAB node receives the measurement result fed back by the parent node and can determine the beam sent downstream by the IAB node that causes interference to the parent node.

[0171] The IAB node performs downstream transmission and upstream transmission simultaneously. The IAB node selects a beam corresponding to the downstream transmission so that the downstream transmission of the IAB node does not interfere with the parent node or the downstream transmission of the IAB node causes less interference to the parent node.

[0172] The signal type of the measurement configuration is not limited to CSI-RS, but may also be SSB, DMRS, PTRS and other signals.

[0173] The above is only a description of a specific embodiment of the present invention. The expansion of this embodiment includes the following aspects, which are also within the scope of protection of this application.

[0174] In one embodiment, the IAB node is provided with a beam reporting capability (DU has multi-beam capability), and the parent node configures the CSI-RS of the IAB node DU for the IAB node.

[0175] In this embodiment, the IAB node reports its DU multi-beam capability to the parent node as n_Simul_Beam, where n_Simul_Beam represents the number of beams that the DU unit of the IAB node can send at the same time.

[0176] Alternatively, the IAB node reports to the parent node the number of SRS sets reported by the parent node or the number of SRS resources included in the SRS set. The parent node determines the number of beams that the DU transmits simultaneously based on the report of the IAB node.

[0177] The parent node learns that the DU unit of the IAB node can simultaneously transmit n_Simul_Beam beams. The parent node configures a CSI-RS resource set for the IAB node DU using the CSI-RS resource configuration method described in the above embodiment. When configuring a CSI-RS resource set for the IAB node, up to n_Simul_Beam CSI-RS resources can be configured on the same time resource. For example, the parent node configures N CSI-RS resource sets for the IAB node, denoted as CSI-RS-Resource-set-1 to CSI-RS-Resource-set-N, where N>n_Simul_Beam. In this case, the parent node should configure up to n_Simul_Beam CSI-RS resource sets on the same time domain resource. The parent node must configure at least ceil(N / n_Simul_Beam) time domain resources for these CSI-RS resource sets. Where ceil() represents a rounding operation.

[0178] Alternatively, the network's centralized control unit (CU) or operation administration and maintenance (OAM) configures CSI-RS resources for the IAB node DU and notifies the parent node of the CSI-RS resource configuration of the IAB node DU through F1 signaling or OAM.

[0179] The parent node configures an SRS resource set for the IAB node. The parent node also configures a correspondence between the CSI-RS resource set and the SRS resource set for the IAB node. Based on this correspondence, the IAB node performs simultaneous downstream and upstream transmissions in the beam corresponding to the SRS resource set and the beam corresponding to the CSI-RS resource set, or in a quasi-co-location configuration of the SRS resource set and the CSI-RS resource set. The SRS resource set is a channel measurement resource set, and the CSI-RS resource set is an interference measurement resource set.

[0180] The parent node measures the received power of the CSI-RS signal sent downstream by the child node, measures the received power of the SRS signal sent upstream by the child node, and feeds back the measured values ​​to the IAB node. Based on the method described in the above embodiment, the parent node further feeds back the granularity based on the time domain resource corresponding to the CSI-RS resource set.

[0181] The parent node feeds back one or a combination of the following to indicate the interference measured by the parent node to the downstream transmission of the IAB node at the corresponding time domain resource index:

[0182] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resourceset whose RSRP_i is greater than or equal to the threshold threshold_1;

[0183] The parent node feeds back the time domain resource index corresponding to one or more CSI-RSresource sets whose RSRQ_s, SINR, or CQI is less than or equal to the threshold threshold_2;

[0184] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose PL_i is less than or equal to the threshold threshold_3;

[0185] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose SIR_PL is less than or equal to the threshold threshold_4;

[0186] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose SIR is less than or equal to the threshold threshold_5.

[0187] If the parent node reports one or a combination of the following, the IAB node considers that no IAB downstream transmission caused interference to the parent node in the corresponding time domain resource index:

[0188] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resourceset whose RSRP_i is less than or equal to the threshold threshold_1;

[0189] The parent node feeds back the time domain resource index corresponding to one or more CSI-RSresource sets whose RSRQ_s, SINR, or CQI is greater than or equal to the threshold threshold_2;

[0190] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose PL_i is greater than or equal to the threshold threshold_3;

[0191] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose SIR_PL is less than or equal to the threshold threshold_4;

[0192] The parent node feeds back the time domain resource index corresponding to one or more CSI-RS resource sets whose SIR is less than or equal to the threshold threshold_5.

[0193] The above-mentioned SIR or SIR_PL is defined as the ratio of two quantities. If the two quantities being compared are dB values, then the subtraction of the two quantities used to calculate the SIR or SIR_PL is the ratio.

[0194] When an IAB node performs downstream transmission and upstream transmission simultaneously, its downstream transmission avoids using a beam that causes interference to the parent node, or the downstream transmission uses a beam that causes less interference to the parent node.

[0195] The IAB node receives feedback from the parent node and can determine that the beam sent by the IAB node downstream causes interference to the parent node.

[0196] The IAB node performs downstream transmission and upstream transmission simultaneously. The IAB node selects a beam corresponding to the downstream transmission so that the downstream transmission of the IAB node does not interfere with the parent node or the downstream transmission of the IAB node causes less interference to the parent node.

[0197] The interference measurement set configured by the parent node for the IAB node is not limited to CSI-RS but may also include signals such as SSB, DMRS, and PTRS.

[0198] The above is only a description of a specific embodiment of the present invention. The expansion of this embodiment includes the following aspects, which are also within the scope of protection of this application.

[0199] In one embodiment, based on the above embodiment, the measurement beam is refined: resource feedback is subdivided within the CSI-RS resource set.

[0200] The IAB node reports the CSI-RS that the parent node needs to measure to the parent node, and the IAB node reports a CSI-RS resource set to the parent node. The CSI-RS resource set contains one or more CSI-RS resources. The specific reporting method is the same as the method provided in the above embodiment and will not be repeated in this embodiment.

[0201] The parent node measures each CSI-RS resource in the CSI-RS resource set reported by the IAB node and feeds back the measured value to the IAB node. The parent node feeds back to the IAB node based on the granularity of CSI-RS resource.

[0202] The parent node feeds back one or a combination of the following to indicate the interference measured by the parent node to the downstream transmission of the IAB node at the CSI-RS resource index corresponding to the CSI-RS resource set index:

[0203] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to RSRP_i being greater than or equal to the threshold threshold_1;

[0204] The parent node feeds back the CSI-RSresource set index and CSI-RS resource index corresponding to the RSRQ_s, SINR, or CQI being less than or equal to the threshold threshold_2;

[0205] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to PL_i being less than or equal to threshold threshold_3;

[0206] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR_PL being less than or equal to the threshold threshold_4;

[0207] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR being less than or equal to the threshold threshold_5.

[0208] When the parent node reports one or a combination of the following, the IAB node deems that the downstream transmission corresponding to the time domain resource index does not cause significant interference to the parent node:

[0209] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to RSRP_i being less than or equal to the threshold threshold_1;

[0210] The parent node feeds back the CSI-RSresource set index and CSI-RS resource index corresponding to the RSRQ_s, SINR, or CQI greater than or equal to the threshold threshold_2;

[0211] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to PL_i being greater than or equal to threshold threshold_3;

[0212] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR_PL being less than or equal to the threshold threshold_4;

[0213] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR being less than or equal to the threshold threshold_5.

[0214] The IAB node receives the measurement value fed back by the parent node and can determine the CSI-RSresource set index and CSI-RSresource index that causes interference to the parent node, or can determine the CSI-RS resource set index and CSI-RS resource index that does not cause obvious interference to the parent node. When the IAB node performs downstream and upstream transmission at the same time, its downstream transmission avoids using a beam that causes interference to the parent node, or the downstream transmission uses a beam that has no interference or little interference to the parent node.

[0215] Optionally, different CSI-RS resources of the CSI-RS resource set may correspond to different time domain positions. The CSI-RS sent downstream by the IAB node may be sent using their own beams using TDM. The parent node may measure the interference of the IAB node's downstream transmission on the parent node at different times, and the parent node may feed back the measurement value according to the method described above. When the IAB node performs downstream transmission and upstream transmission at the same time, the IAB node's downstream transmission avoids using a beam that causes interference to the parent node. Since different CSI-RS resources of the CSI-RS resource set correspond to different time resources, this method can achieve the purpose of the parent node measuring the interference of the IAB node's downstream transmission on the parent node by having the IAB node perform downstream transmission in its own beam direction at different times in scenarios where the IAB node's downstream transmission does not have the capability of simultaneous multi-beam transmission. After the IAB node receives feedback from the parent node, the IAB node can determine the beam that the IAB node's downstream transmission causes interference to the parent node, or the IAB node can determine the beam that the IAB node's downstream transmission does not cause interference to the parent node. Therefore, when the IAB node performs downstream transmission and upstream transmission simultaneously, its downstream transmission avoids using a beam that causes interference to the parent node, or the downstream transmission uses a beam that causes less interference to the parent node.

[0216] When the IAB node configures only one CSI-RS resource set for the parent node, the parent node may only feed back the resource number within the set based on the above feedback.

[0217] In one embodiment, the measurement beam is refined based on the above embodiment.

[0218] The IAB node reports the CSI-RS resource set to be measured in the manner of the above embodiment. One CSI-RS resource set corresponds to one or more CSI-RS resources.

[0219] The parent node measures the CSI-RS resource set index and CSI-RS resource. A resource can include one or more reference signal ports. The parent node measures each reference signal port in the resource indexed by the CSI-RS resource set. Based on the above embodiment, this embodiment provides feedback at a port granularity. The feedback method adopts the specific method described in the above embodiment. This embodiment will not be repeated.

[0220] The parent node feeds back one or a combination of the following to indicate the interference measured by the parent node to the downstream transmission of the IAB node at the corresponding CSI-RS resource set index, CSI-RS resource index, and reference signal port index:

[0221] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index where RSRP_i is greater than or equal to the threshold threshold_1;

[0222] The parent node feeds back the CSI-RS resourceset index, CSI-RS resource index, and reference signal port index for which RSRQ_s, SINR, or CQI is less than or equal to the threshold threshold_2;

[0223] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index where PL_i is less than or equal to the threshold threshold_3;

[0224] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index for which SIR_PL is less than or equal to threshold threshold_4;

[0225] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index whose SIR is less than or equal to the threshold threshold_5.

[0226] When the parent node reports one or a combination of the following, the IAB node considers that the downstream transmission corresponding to the CSI-RS resource set index, CSI-RS resource index, and reference signal port index does not cause significant interference to the parent node:

[0227] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index where RSRP_i is less than or equal to the threshold threshold_1;

[0228] The parent node feeds back the CSI-RS resourceset index, CSI-RS resource index, and reference signal port index for which RSRQ_s, SINR, or CQI is greater than or equal to the threshold threshold_2;

[0229] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index where PL_i is greater than or equal to threshold threshold_3;

[0230] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index for which SIR_PL is less than or equal to threshold threshold_4;

[0231] The parent node feeds back the CSI-RS resource set index, CSI-RS resource index, and reference signal port index whose SIR is less than or equal to the threshold threshold_5.

[0232] The IAB node receives the measurement value fed back by the parent node and can determine the CSI-RSresource set index, CSI-RS resource index and reference signal port index that causes interference to the parent node, or can determine the CSI-RS resource set index, CSI-RS resource index and reference signal port index that does not cause interference to the parent node. When the IAB node performs downstream transmission and upstream transmission at the same time, its downstream transmission avoids using the beam corresponding to the CSI-RSresource set index, CSI-RS resource index and reference signal port index that causes interference to the parent node, or the downstream transmission uses the beam corresponding to the CSI-RS resource set index, CSI-RS resource index and reference signal port index that causes less interference to the parent node.

[0233] When the IAB node configures only one CSI-RS resource set for the parent node, the parent node can only report the corresponding resource number and port within the set based on the above feedback. Furthermore, when the IAB node configures only one CSI-RS resource set for the parent node and the resource set has only one resource, the parent node can only report the corresponding port within the set based on the above feedback.

[0234] In one embodiment, the IAB node requests SRS resources from the parent node. The IAB node configures the association between the SRS resources and the CSI-RS resources downstream of the IAB node for the child node or UE. The child node or UE performs measurements and reports the measured values ​​to the IAB node. The IAB node receives the reported values ​​from the child node or UE and, when performing both upstream and downstream transmissions, avoids using beams that may interfere with the child node or UE for upstream transmission.

[0235] The upstream transmission of the IAB node may cause interference to the receiver sub-node or UE of the downstream transmission of the IAB node. The IAB node can configure SRS for the sub-node or UE.

[0236] The IAB node requests the parent node to send reference signal resources upstream of the IAB. Preferably, the IAB node requests the parent node to send periodic SRS.

[0237] The IAB node configures measurement configuration for the child node or UE.

[0238] The measurement configuration information includes one or more resource sets, and each resource set includes one or more reference signal resource configurations;

[0239] The reference signal resource configuration includes at least one of the following: time configuration, frequency domain configuration, sequence configuration, transmit power, quasi-co-site reference signal configuration, and receive beam indication.

[0240] The reference signal can be SRS or DMRS;

[0241] The measurement result includes at least one of the following: RSRP, target link quality, path loss, and SIR.

[0242] RSRP can be the RSRP of the reference signal in the measurement configuration measured by the UE or subnode, or the RSRP of the reference signal (such as CSI-RS, SSB, DMRS, PTRS, etc.) sent downstream by the IAB node measured by the UE or subnode

[0243] The target link quality is the RSRQ, SINR, or CQI of the reference signal sent downstream from the IAB node, as measured by the UE or child node. The SIR is the ratio of Ps to Pi, where Ps is the received power of the reference signal sent downstream from the IAB node, as measured by the UE or child node, and Pi is the received power of the reference signal sent upstream from the IAB node, as measured by the UE or child node. Power is often expressed in dB, so the power ratio corresponds to the difference in dB values.

[0244] The path loss is the path loss measured by the UE or the sub-node according to the resources in the measurement configuration, or the path loss measured by the UE or the sub-node between the IAB node and the UE or the sub-node.

[0245] The feedback amount from the UE or child node to the IAB node includes at least one of the following: resource index, path loss of corresponding resource, RSRP of corresponding resource, RSRQ of the reference signal sent upstream by the IAB node received by the parent node, and SINR of the reference signal sent upstream by the IAB node received by the parent node.

[0246] The IAB node performs downstream transmission and upstream transmission simultaneously, and its downstream transmission avoids the beam that has a large interference to the parent node.

[0247] The measurement configuration configured by the IAB node for the UE or the subnode includes one or more SRS resource sets.

[0248] An SRS resource set includes one or more SRS resource configurations, or an SRS resource set includes one or more SRS resource configurations and a receive beam indication corresponding to the SRS resource set. An SRS resource configuration includes one or a combination of the following:

[0249] Frequency domain configuration of SRS resources;

[0250] Sequence configuration of SRS resources;

[0251] Time configuration of SRS resources;

[0252] SRS transmit power;

[0253] SRS resource quasi-co-site reference signal configuration;

[0254] The SRS resource receives a beam indication.

[0255] The frequency domain configuration includes at least one of the following: a bandwidth occupied by a reference signal, a frequency domain density of the reference signal, a subcarrier spacing of a reference channel, and a frequency domain offset of the reference signal.

[0256] The sequence configuration of the SRS resource includes at least one of the following: a reference signal sequence type, and a reference signal sequence generation method.

[0257] The time configuration includes at least one of the following: SRS period, SRS time offset, SRS effective measurement time, timing offset between SRS signal and IAB node downstream transmission (timing offset to be refined), and whether time limit is enabled.

[0258] The period of SRS (denoted as P) refers to the periodicity of the IAB node sending the reference signal at P. Figure 4 The time offset of the reference signal refers to the time offset with the starting point of period P as the boundary. The time offset can be at least one of several radio frames, several subframes, several time slots, and several OFDM symbols, as shown in the attached figure. Figure 5 The effective measurement time of the reference signal indicates the effective time for the parent node to perform the reference signal measurement. For example, if the IAB node does not send the reference signal outside the effective time or the beam changes or the power of the reference signal changes, the child node or UE should not measure the reference signal at these time domain positions. Therefore, it is necessary to indicate the effective time for the child node or UE to perform the measurement as shown in the attached figure. Figure 6 shown.

[0259] The transmit power of the reference signal is the transmit power of the reference signal sent upstream by the IAB node.

[0260] The UE or child node measures the reference signal of the IAB node according to the receive beam of the resource set configured by the IAB node. If the resource set configured by the IAB node does not include a receive beam, the UE or child node performs corresponding measurements according to the historical receive beam used in communication with the IAB node.

[0261] The UE or child node feeds back to the IAB node the resource set index corresponding to the measurement amount that meets the threshold, where the threshold is at least one of the following: the measurement amount is greater than or equal to a specific threshold, the measurement amount is less than or equal to a specific threshold, the measurement amount is greater than a specific threshold, and the measurement amount is less than a specific threshold.

[0262] The UE or child node measures the RSRP of the reference signal in a resource set, denoted as RSRP_i. The UE or child node feeds back the resource set index corresponding to the RSRP_i that meets the threshold to the IAB node. The threshold corresponding to RSRP_i is denoted as threshold_1. RSRP_i can be the average RSRP value of the reference signals of different resources in a resource set, the minimum RSRP value of the reference signals of different resources in a resource set, or the maximum RSRP value of the reference signals of different resources in a resource set. Optionally, the UE or child node feeds back the RSRP_i value that meets the threshold to the IAB node.

[0263] The UE or child node measures the channel quality corresponding to the reference signal sent downstream by the IAB node. The channel quality can be characterized by one of the following quantities: RSRQ, SINR, or CQI. The corresponding measurement quantities are denoted as RSRQ_s, SINR, or CQI, respectively. The UE or child node feeds back the index of the resource set corresponding to the measurement quantity that meets the threshold to the IAB node. The threshold corresponding to RSRQ_s, SINR, or CQI is denoted as threshold_2. Optionally, the UE or child node feeds back the RSRQ_s value, SINR value, or CQI value that meets the threshold to the IAB node.

[0264] The UE or child node measures the reference signal path loss in the resource set, which is recorded as PL_i. The UE or child node feeds back the index of the resource set corresponding to the measurement value that meets the threshold to the IAB node, and the threshold corresponding to PL_i is recorded as threshold_3. PL_i can be the average value of the reference signal path loss of different resources in a resource set, or when the UE or child node feeds back the resource set index corresponding to the path loss greater than or equal to the threshold value, the path loss can also be the minimum value of the reference signal path loss of different resources in a resource set, or when the UE or child node feeds back the resource set index corresponding to the path loss less than or equal to the threshold value, the path loss can also be the maximum value of the reference signal path loss of different resources in a resource set. Optionally, the UE or child node can feed back the PL_i value that meets the threshold to the IAB node.

[0265] The UE or child node measures the path loss corresponding to the reference signal sent upstream by the IAB node, denoted as PL_s. The UE or child node measures the path loss of the reference signal in the resource set, denoted as PL_i. The ratio of PL_s to PL_i is denoted as SIR_PL = PL_s / PL_i. The UE or child node feeds back the resource set index corresponding to the SIR_PL that meets the threshold to the IAB node. The threshold corresponding to the SIR_PL is denoted as threshold_4. Optionally, the UE or child node can also feed back the SIR_PL value that meets the threshold to the IAB node.

[0266] The UE or child node measures the received signal power corresponding to the reference signal sent downstream from the IAB node, which is recorded as Ps. For example, the UE or child node measures the received signal power of the CSI-RS signal sent downstream from the IAB node. The UE or child node measures the received signal power of the reference signal in the resource set, which is recorded as Pi. The ratio of Ps to Pi is recorded as SIR = Ps / Pi. The UE or child node feeds back the resource set index corresponding to the SIR that meets the threshold to the IAB node, and the corresponding SIR threshold is recorded as threshold_5. Optionally, the UE or child node can feed back the SIR value that meets the threshold to the IAB node.

[0267] When the IAB node receives feedback from a UE or a child node that is one of the following or a combination of the following, the IAB node deems that the IAB downstream transmission of the corresponding resource set index causes interference to the UE or child node reception:

[0268] The UE or child node feeds back the corresponding resource set index where RSRP_i is greater than or equal to threshold_1;

[0269] The UE or child node feedback RSRQ_i is less than or equal to threshold_2 corresponding to the resource set index

[0270] The UE or subnode feeds back the corresponding resource set index where PL_i is less than or equal to threshold_3;

[0271] The UE or subnode feeds back the corresponding resource set index where SIR_PL is less than or equal to threshold_4;

[0272] The UE or child node feeds back the corresponding resource set index with SIR less than or equal to threshold_5.

[0273] When the IAB node receives feedback from the UE or sub-node that is one of the following or a combination of the following, the IAB node deems that the IAB downstream transmission of the corresponding resource set index does not cause significant interference to the UE or sub-node reception:

[0274] The UE or child node feedback RSRP_i is less than or equal to threshold_1 corresponding to the resource set index;

[0275] The UE or child node feedback RSRQ_i is greater than or equal to threshold_2 corresponding to the resource set index;

[0276] The UE or child node feedback PL_i is greater than or equal to threshold_3 corresponding to the resource set index;

[0277] The UE or child node feedback SIR_PL is less than or equal to threshold_4 corresponding to the resource set index;

[0278] The UE or child node feeds back the corresponding resource set index with SIR less than or equal to threshold_5.

[0279] The above-mentioned SIR or SIR_PL is defined as the ratio of two quantities. If the two values ​​being compared are dB values, then the subtraction of the two quantities used to calculate the SIR or SIR_PL is the ratio.

[0280] The IAB node receives feedback from the UE or the sub-node and can determine that the beam sent upstream by the IAB node causes interference to the UE or the sub-node.

[0281] The IAB node performs downstream transmission and upstream transmission simultaneously. Its upstream transmission avoids using beams that cause interference to UEs or sub-nodes, or upstream transmission uses beams that cause less interference to UEs or sub-nodes.

[0282] The above is only a description of a specific embodiment of the present invention. The expansion of this embodiment includes the following aspects, which are also within the scope of protection of this application.

[0283] The signal type of the measurement configuration is not limited to CSI-RS, and can also be SSB, DMRS, PTRS and other signals.

[0284] The number of SRS resources configured by the parent node is the same as the number of SRS resources requested by the IAB node, or the number of SRS resources configured by the parent node is smaller than the number of SRS resources requested by the IAB node.

[0285] In one embodiment, the IAB node requests the upstream receiving beam direction from the parent node, and the parent node configures the upstream receiving beam direction for the IAB node.

[0286] An IAB node performs both upstream and downstream reception. This means that while the IAB node receives data from its parent node, it also receives data from its child node or UE. Data from the parent node corresponds to the IAB node's upstream reception, while data from the child node or UE corresponds to its downstream reception.

[0287] like Figure 9 As shown in the figure, the IAB node receives data from two links (downstream reception and upstream reception) at the same time, and the data sent by the parent node may interfere with the downstream reception.

[0288] The IAB node reports one or more receive beam sets to the parent node;

[0289] The parent node configures one or more receive beam sets to the IAB node;

[0290] The parent node configures a receiving beam set for the IAB node, including one of the following: one or more receiving beams, a time corresponding to the receiving beam, and a time corresponding to the receiving beam set.

[0291] When the IAB node performs downstream reception and upstream reception at the same time, the IAB node schedules the UE or child node so that the data sent by the parent node causes little interference or no interference to the downstream reception of the IAB node; or the IAB node schedules the UE or child node so that the data sent by the UE or child node causes little interference or no interference to the upstream reception of the IAB node; or the IAB node schedules the UE or child node so that the data sent by the UE or child node causes little interference or no interference to the upstream reception of the IAB node and the data sent by the parent node causes little interference or no interference to the downstream reception of the IAB node;.

[0292] The IAB node DU uses one or more receiving beams for measurement, which can be measured on multiple receiving beams in a time-division manner. Alternatively, if the IAB node has the ability to measure multiple beams simultaneously, the IAB node can measure the transmission data of the parent node, UE or child node on multiple receiving beams at the same time.

[0293] For example, the parent node configures the receiving beam set for the upstream reception of the IAB node to the IAB node, which is recorded as TCI-state-set-1 and TCI-state-set-2, wherein the time corresponding to the receiving beam of TCI-state-set-1 is time-TCI-state-set-1, and the time corresponding to the receiving beam of TCI-state-set-2 is time-TCI-state-set-2. After receiving the configuration of the parent node, the IAB node determines to use the beam corresponding to TCI-state-set-1 to receive the data sent by the parent node within the time corresponding to time-TCI-state-set-1. Based on the configuration of the parent node, the IAB node schedules the UE or child node within the time corresponding to time-TCI-state-set-1. Preferably, the IAB node schedules the UE or child node to send data within the time corresponding to time-TCI-state-set-1 so that the transmission satisfies one of the following or a combination thereof: the data sent by the UE or child node has no interference or little interference with the upstream reception of the IAB node; the transmission of the parent node has no interference or little interference with the downstream reception of the IAB node.

[0294] Alternatively, the parent node configures respective times for the receiving beams of the receiving beam set configured for the IAB node, and the IAB node takes the intersection of times corresponding to different receiving beams to determine the receiving beam corresponding to the time.

[0295] For example, the receiving beams of receiving beam set 1 are beam 1 and beam 2, the time corresponding to receiving beam 1 is t1, the time corresponding to receiving beam 2 is t2, and the overlapping part of t1 and t2 is t-overlap. Then the IAB node can determine that the time excluding t-overlap in t1 corresponds to receiving beam 1, the time excluding t-overlap corresponds to receiving beam 1 and receiving beam 2, and the time excluding t-overlap in t2 corresponds to receiving beam 2. The IAB node schedules the UE or child node according to the receiving beams at the corresponding time. Based on the configuration of the parent node, the IAB node schedules the UE or child node within the time corresponding to t1. Preferably, the IAB node schedules the UE or child node to send data within the time corresponding to t-1 so that the transmission satisfies one of the following or a combination thereof: the data sent by the UE or child node has no interference or little interference with the upstream reception of the IAB node; the transmission of the parent node has no interference or little interference with the downstream reception of the IAB node.

[0296] In one embodiment, the IAB node requests an upstream receiving beam direction from the parent node, and the parent node configures the quasi-co-site reference signal configuration or spatial receiving parameters corresponding to the upstream reception of the IAB node for the IAB node.

[0297] An IAB node performs both upstream and downstream reception. This means that while the IAB node receives data from its parent node, it also receives data from its child node or UE. Data from the parent node corresponds to the IAB node's upstream reception, while data from the child node or UE corresponds to its downstream reception.

[0298] like Figure 1 As shown in the figure, the IAB node receives data from two links (downstream reception and upstream reception) at the same time, and the data sent by the parent node may interfere with the downstream reception.

[0299] The IAB node reports the measurement configuration to the parent node;

[0300] The parent node performs the measurement and feeds back the measurement results to the IAB node;

[0301] When an IAB node performs upstream reception and downstream reception simultaneously, the downstream transmission adopts a beam that causes less interference to the parent node.

[0302] The parent node configures a receiving beam set for the IAB node including one of the following: one or more quasi-co-site reference signal configuration sets or spatial reception parameter sets, the time corresponding to the quasi-co-site reference signal configuration set or the spatial reception parameter set, and the time corresponding to the quasi-co-site reference signal configuration set or the spatial reception parameter set.

[0303] When the IAB node performs downstream reception and upstream reception at the same time, the IAB node schedules the UE or child node so that the data sent by the parent node causes little interference or no interference to the downstream reception of the IAB node; or the IAB node schedules the UE or child node so that the data sent by the UE or child node causes little interference or no interference to the upstream reception of the IAB node; or the IAB node schedules the UE or child node so that the data sent by the UE or child node causes little interference or no interference to the upstream reception of the IAB node and the data sent by the parent node causes little interference or no interference to the downstream reception of the IAB node;.

[0304] The IAB node DU adopts one or more quasi-co-located reference signal configurations or spatial reception parameter measurements, which can be measured on multiple receiving beams in a time-division manner. Alternatively, if the IAB node has the ability to measure multiple beams simultaneously, the IAB node can measure the transmission data of the parent node, UE or child node on multiple receiving beams at the same time.

[0305] For example, the parent node configures the spatial receiving parameters upstream of the IAB node to the IAB node as a receiving beam set, which is recorded as TCI-state-set-1 and TCI-state-set-2, where the time corresponding to the receiving beam of TCI-state-set-1 is time-TCI-state-set-1, and the time corresponding to the receiving beam of TCI-state-set-2 is time-TCI-state-set-2. After receiving the configuration of the parent node, the IAB node determines to use the beam corresponding to TCI-state-set-1 to receive the data sent by the parent node within the time corresponding to time-TCI-state-set-1. Based on the configuration of the parent node, the IAB node schedules the UE or child node within the time corresponding to time-TCI-state-set-1. Preferably, the IAB node schedules the UE or child node to send data within the time corresponding to time-TCI-state-set-1 so that the transmission satisfies one of the following or a combination thereof: the data sent by the UE or child node has no interference or little interference with the upstream reception of the IAB node; the transmission of the parent node has no interference or little interference with the downstream reception of the IAB node.

[0306] Alternatively, the parent node configures respective times for the receiving beams of the receiving beam set configured for the IAB node, and the IAB node takes the intersection of times corresponding to different receiving beams to determine the receiving beam corresponding to the time.

[0307] For example, the receiving beams of receiving beam set 1 are beam 1 and beam 2, the time corresponding to receiving beam 1 is t1, the time corresponding to receiving beam 2 is t2, and the overlapping part of t1 and t2 is t-overlap. Then the IAB node can determine that the time excluding t-overlap in t1 corresponds to receiving beam 1, the time excluding t-overlap corresponds to receiving beam 1 and receiving beam 2, and the time excluding t-overlap in t2 corresponds to receiving beam 2. The IAB node schedules the UE or child node according to the receiving beams at the corresponding time. Based on the configuration of the parent node, the IAB node schedules the UE or child node within the time corresponding to t1. Preferably, the IAB node schedules the UE or child node to send data within the time corresponding to t-1 so that the transmission satisfies one of the following or a combination thereof: the data sent by the UE or child node has no interference or little interference with the upstream reception of the IAB node; the transmission of the parent node has no interference or little interference with the downstream reception of the IAB node.

[0308] In one embodiment, based on the above embodiment, the parent node applies to measure a CSI-RS resource set or a CSI-RS resource.

[0309] The CU or OAM notifies the parent node of the CSI-RS resource configuration of the IAB node. The CSI-RS resource configuration includes at least one of the following: time, frequency domain, sequence, transmit power, quasi-co-site reference signal configuration or spatial reception parameters, as described in the above embodiments. An index value corresponds to a CSI-RS resource set or an index value corresponds to a CSI-RS resource or corresponds to one or more ports in a CSI-RS resource. The parent node requests the CSI-RS to be measured from the IAB node, and the parent node can request to measure different CSI-RS resources through the index value of the CSI-RS resource configuration. The CU or OAM or IAB node notifies the parent node of the timing deviation between the downstream transmission of the IAB node and the upstream transmission of the IAB node.

[0310] The IAB node sends the corresponding CSI-RS according to the index value of the CSI-RS resource configuration requested by the parent node or a subset thereof.

[0311] The parent node measures the CSI-RS resource sent by the IAB node, and feeds back the measured value to the IAB node. Based on embodiment 1, the parent node feeds back the CSI-RS resource to the IAB node as a granularity.

[0312] The parent node feeds back one or a combination of the following to indicate that the parent node measures interference from the IAB node downstream to the parent node at the CSI-RS resource index corresponding to the CSI-RS resource set index:

[0313] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to RSRP_i being greater than or equal to the threshold threshold_1;

[0314] The parent node feeds back the CSI-RSresource set index and CSI-RS resource index corresponding to the RSRQ_s, SINR, or CQI being less than or equal to the threshold threshold_2;

[0315] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to PL_i being less than or equal to threshold threshold_3;

[0316] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR_PL being less than or equal to the threshold threshold_4;

[0317] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR being less than or equal to the threshold threshold_5.

[0318] When the parent node reports one or a combination of the following, the IAB node deems that the downstream transmission corresponding to the time domain resource index does not cause interference to the parent node:

[0319] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to RSRP_i being less than or equal to the threshold threshold_1;

[0320] The parent node feeds back the CSI-RSresource set index and CSI-RS resource index corresponding to the RSRQ_s, SINR, or CQI greater than or equal to the threshold threshold_2;

[0321] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to PL_i being greater than or equal to threshold threshold_3;

[0322] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR_PL being less than or equal to the threshold threshold_4;

[0323] The parent node feeds back the CSI-RS resource set index and CSI-RS resource index corresponding to the SIR being less than or equal to the threshold threshold_5.

[0324] The IAB node receives the measurement value fed back by the parent node and can determine the CSI-RSresource set index and CSI-RSresource index that causes interference to the parent node, or can determine the CSI-RS resource set index and CSI-RS resource index that does not cause obvious interference to the parent node. When the IAB node performs downstream and upstream transmission at the same time, its downstream transmission avoids using a beam that causes interference to the parent node, or the downstream transmission uses a beam that has no interference or little interference to the parent node.

[0325] Optionally, different CSI-RS resources of the CSI-RS resource set may correspond to different time domain positions. The CSI-RS sent downstream by the IAB node may be sent using their own beams using TDM. The parent node may measure the interference of the IAB node's downstream transmission on the parent node at different times, and the parent node may feed back the measurement value according to the method described above. When the IAB node performs downstream transmission and upstream transmission at the same time, the IAB node's downstream transmission avoids using a beam that causes interference to the parent node. Since different CSI-RS resources of the CSI-RS resource set correspond to different time resources, this method can achieve the purpose of the parent node measuring the interference of the IAB node's downstream transmission on the parent node by having the IAB node perform downstream transmission in its own beam direction at different times in scenarios where the IAB node's downstream transmission does not have the capability of simultaneous multi-beam transmission. After the IAB node receives feedback from the parent node, the IAB node can determine the beam that the IAB node's downstream transmission causes interference to the parent node, or the IAB node can determine the beam that the IAB node's downstream transmission does not cause interference to the parent node. Therefore, when the IAB node performs downstream transmission and upstream transmission simultaneously, its downstream transmission avoids using a beam that causes interference to the parent node, or the downstream transmission uses a beam that causes less interference to the parent node.

[0326] In one implementation, a parent node configures a correspondence between an SRS resource and one or more CSI-RS resources for an IAB node, wherein the IAB node is capable of simultaneously transmitting the one SRS resource and the one or more CSI-RS resources. For example, the intersection of the time domain resources occupied by the SRS resource and the one or more CSI-RS resources may be non-empty.

[0327] During the actual configuration process, the time domain resources occupied by the SRS resources and the one or more CSI-RS resources may not necessarily overlap, but the transmit beam corresponding to the SRS resources and the transmit beam corresponding to the one or more CSI-RS resources can be transmitted simultaneously by the IAB node, that is, the IAB node is capable of transmitting the SRS resources and the one or more CSI-RS resources on the same time domain resources. Only during the measurement phase, for interference or power considerations, the intersection between the time domain resources occupied by the SRS resources and the one or more CSI-RS resources can be non-empty or empty.

[0328] Furthermore, the SRS resource is a channel measurement resource, and the CSI-RS resource is an interference measurement resource.

[0329] Furthermore, the SRS resource and the CSI-RS resource are both measurement resources to be sent by the IAB node;

[0330] Furthermore, if Figure 10 As shown, the SRS resource is an uplink measurement reference signal on the link corresponding to the IAB node MT, and the CSI-RS resource is a measurement reference signal on the link corresponding to the DU.

[0331] Furthermore, the parent node configures one or more CSI-RS resources corresponding to different SRS resource configurations respectively.

[0332] Furthermore, the IDs corresponding to the one SRS resource and each of the CSI-RS resources are different, and the IDs corresponding to different CSI-RS resources are also different. For example, the ID corresponds to the transmitting antenna index / transmitting antenna port of the IAB node, or the panel index. A panel can only send one beam at a time, and different transmitting beams of a panel can only be time-division multiplexed. Beams of different panels can be sent at the same time.

[0333] Alternatively, the parent node configures a correspondence between an SRS resource set and one or more CSI-RS resources for the IAB node, where all SRS resources in the SRS resource set and the one or more CSI-RS resources can be sent simultaneously by the IAB node. Furthermore, the SRS resource set is a non-codebook SRS set on the MT link.

[0334] In one embodiment, the parent node configures the IAB node with a correspondence between an SRS resource and one or more CSI-RS resource sets, wherein the IAB node is capable of simultaneously sending the SRS resource and one CSI-RS resource in the one CSI-RS resource set, or the IAB node is capable of simultaneously sending the SRS resource and one CSI-RS resource in each CSI-RS resource set in the multiple CSI-RS resource sets, the IAB node cannot simultaneously send different CSI-RS resources in a CSI-RS resource set, and the CSI-RS resources in different CSI-RS resource sets and the SRS resource are capable of being sent simultaneously by the IAB node.

[0335] Furthermore, the SRS resource is a channel measurement resource, and the CSI-RS resource is an interference measurement resource.

[0336] Furthermore, the SRS resource and the CSI-RS resource are both measurement resources to be sent by the IAB node.

[0337] Furthermore, the SRS resource is an uplink sounding reference signal on the MT link, and the CSI-RS resource is a sounding reference signal on the DU link.

[0338] Furthermore, the parent node configures one or more CSI-RS resources corresponding to different SRS resources respectively.

[0339] Furthermore, the IDs corresponding to the SRS resource and each CSI-RS resource set are different, and different CSI-RS resource sets also have different IDs. For example, the ID corresponds to the transmit antenna index or panel index of the IAB node. A panel can only transmit one beam at a time. Different transmit beams of a panel can only be time-division multiplexed, and beams from different panels can be transmitted simultaneously. Furthermore, the SRS resource set is a non-codebook SRS set on the MT link.

[0340] In one embodiment, the parent node configures the spatial relationship information of the uplink channel or signal on the MT link for the IAB node, where the spatial relationship information includes the downlink measurement reference signal resource index on the DU link. The IAB node obtains the spatial transmission filter for transmitting the uplink channel or signal on the MT link based on the spatial transmission filter of the downlink measurement reference signal on the DU link. The spatial transmission filter here can also be called a transmission beam.

[0341] For example, the parent node configures the CSI-RS resources on the DU link in the spatial relationship information of the SRS resources on the MT link for the IAB node, that is, instructs the IAB node to use the same transmission beam as the CSI-RS resources on the DU link to send the SRS resources.

[0342] In one embodiment, the parent node configures the IAB node with quasi-co-site reference signal information of a downlink channel or signal on the MT link, where the quasi-co-site reference signal information includes an uplink measurement reference signal resource index of the DU link.

[0343] For example, the parent node configures the quasi-co-site reference signal information of the associated spatial reception parameters of the CSI-RS resources on the MT link to the IAB node to configure the SRS resources on the DU link, that is, instructs the IAB node to use the same reception beam as the SRS resources on the DU link to receive the CSI-RS resources on the MT link.

[0344] In one embodiment, an IAB node reports the time-frequency resources that the parent node needs to measure to its parent node. When an IAB node performs both upstream and downstream transmissions simultaneously, interference may occur. For example, a downstream transmission from an IAB node may interfere with the parent node's reception of an upstream transmission from the IAB node. To address this issue, the following solution is provided.

[0345] The IAB node reports measurement configuration information to the parent node; the parent node performs measurement and then feeds back the measurement results to the IAB node; when the IAB node performs upstream and downstream transmissions simultaneously, the downstream transmission uses a beam that causes less interference to the parent node.

[0346] The measurement configuration information includes one or more resource sets, and each resource set includes one or more time-frequency resource configuration information to be measured.

[0347] The time-frequency resource configuration information includes at least one of the following: time, frequency domain, transmit power, receive beam indication, whether the time limit is enabled, and quasi-co-location reference signal.

[0348] The measurement quantity includes at least one of the following: signal reception power, target link quality, path loss value, SIR, and SINR.

[0349] The signal received power may be the received power at the time-frequency resource position to be measured corresponding to the measurement configuration, or the received power at the time-frequency resource position to be measured of the IAB node upstream Tx.

[0350] The target link quality is the link quality of the parent node receiving the upstream Tx of the IAB node, including the RSRQ of the reference signal, the SINR of the reference signal, or the CQI of the reference signal.

[0351] SIR is the ratio of Ps to Pi, where Ps is the received power of the reference signal from the upstream IAB node measured by the parent node, and Pi is the received power at the time-frequency resource location reported by the parent node. Power is often expressed in dB, so the power ratio corresponds to the difference in dB values.

[0352] The path loss is the path loss value corresponding to the time-frequency resource to be measured measured by the parent node according to the resources in the measurement configuration, or the path loss between the IAB node and the parent node measured by the parent node.

[0353] The feedback amount from the parent node to the IAB node includes at least one of the following: resource index, received power of the corresponding resource, path loss of the corresponding resource, received power of the corresponding resource, RSRQ, SINR or CQI of the upstream Tx reference signal received by the parent node from the IAB node.

[0354] The parent node determines the feedback amount based on at least one of the following:

[0355] Feedback the amount that meets the threshold condition,

[0356] Feedback is provided of the quantity that satisfies the threshold condition and one or more other related quantities.

[0357] The IAB node performs downstream TX and upstream TX simultaneously, and its downstream TX avoids beams that have a large interference to the parent node.

[0358] The time configuration of the time-frequency resource configuration includes at least one of the following: the period of the time-frequency resource to be measured, the time offset of the time-frequency resource to be measured, the effective measurement time of the time-frequency resource to be measured, and the timing offset between the IAB node downstream Tx and the IAB node upstream Tx.

[0359] The period of the time-frequency resource to be measured (denoted as P) is the period at which the IAB node potentially sends data on the corresponding time-frequency resource to be measured, as shown in the attached figure. Figure 4 The time offset of the time-frequency resource to be measured refers to the time offset with the starting point of period P as the boundary. The time offset can be at least one of several radio frames, several subframes, several time slots, and several OFDM symbols, as shown in the attached figure. Figure 5The effective measurement duration of the time-frequency resource to be measured indicates the effective time for the parent node to perform the measurement of the time-frequency resource to be measured. For example, if the IAB node does not transmit power or the beam changes outside the effective time, the IAB node informs the parent node of the effective time for the measurement of the time-frequency resource to be measured as shown in the attached figure. Figure 6 shown.

[0360] The configuration information of the time-frequency resources to be measured includes information on whether the time restriction (time restriction) for measuring the time-frequency resources to be measured is turned on. When the time restriction is turned on, the IAB node can change the transmission parameters of the time-frequency resources to be measured, such as the transmission beam and the transmission power, in each transmission cycle of the CSI-RS. The timing offset between the time-frequency resources to be measured and the IAB node upstream Tx refers to the time deviation between the transmission timing of the IAB node downstream and the IAB node upstream Tx timing. The timing deviation is a number of OFDM symbols or a number of time domain samples (Tc or Ts) or a number of OFDM symbols and a number of time domain samples. As shown in the figure below, there may be a timing deviation between the IAB node upstream Tx and the IAB node downstreamTx. The IAB node reports the time-frequency resources to be measured to the parent node. The IAB node reports the timing offset between the upstream Tx and downstream Tx of the IAB node to the parent node. The offset is the difference between the upstream Tx timing of the IAB node and the downstream Tx timing of the IAB node, or the difference between the downstream Tx timing of the IAB node and the upstream Tx timing of the IAB node. The parent node uses the timing of the upstream Tx of the IAB node as a reference to postpone or advance the timing offset to measure the time-frequency resources to be measured reported by the IAB node, such as Figure 7 shown.

[0361] The frequency domain configuration of the time-frequency resources to be measured includes at least one of the following: carrier information of the time-frequency resources to be measured, the bandwidth occupied by the time-frequency resources to be measured, the frequency domain density of the time-frequency resources to be measured, the subcarrier spacing of the time-frequency resources to be measured, and the frequency domain offset of the time-frequency resources to be measured.

[0362] The carrier information of the time-frequency resource to be measured is the absolute carrier number or the carrier offset between the carrier of the time-frequency resource to be measured and the carrier corresponding to the IAB node MT. The carrier offset is the number of RBs or the number of subcarriers (SCs) or the number of resource blocks (RBs) and SCs.

[0363] The frequency domain offset of the reference signal refers to the offset of the reference signal within the RB (Resource Block).

[0364] The RB size and SC size of the carrier offset are determined by the reference subcarrier spacing (reference SC). For example, the reference subcarrier value is 15*2^u, where u is a natural number greater than or equal to 0. u can be a value agreed upon between nodes, or a value used in the communication process between the parent node and the IAB node, or a value notified by the IAB node, OAM, or CU to the parent node.

[0365] The transmit power of the time-frequency resource to be measured is the transmit power of the IAB node downstream Tx on the corresponding time-frequency resource.

[0366] The parent node measures the time-frequency resources to be measured in the resource set of the measurement configuration reported by the IAB node or the reference signal of the upstream Tx of the IAB node according to the receiving beam corresponding to the resource set of the measurement configuration reported by the IAB node. For example, the measurement configuration reported by the IAB node includes the time-frequency resources to be measured, and the receiving beam parameters of the time-frequency resources to be measured are the receiving beams on the parent node side. For example, the receiving beam parameters of the time-frequency resources to be measured are the SRS resource index on the corresponding upstream Tx, that is, the parent node uses the receiving beam corresponding to the SRS resource received on the upstream Tx to measure the time-frequency resources to be measured reported by the IAB node.

[0367] Optionally, the quasi-co-site reference signal of QCL-TypeD of the time-frequency resource to be measured is a signal or channel on upstream Tx, such as the SRS resource of upstream Tx, that is, the SRS resource on upstream Tx is included in the configuration information of the quasi-co-site reference signal of QCL-TypeD associated with the time-frequency resource to be measured.

[0368] Optionally, the quasi-co-site reference signal of QCL-TypeD of the time-frequency resource to be measured is a signal or channel on the downstream Tx, such as the SSB resource of the downstream Tx, that is, the SSB resource on the downstream Tx is included in the configuration information of the quasi-co-site reference signal of QCL-TypeD associated with the CSI-RS resource.

[0369] Furthermore, the channel type corresponding to the time-frequency resource of the notification band measurement is, for example, the corresponding time-frequency resource is the control channel of the IAB node downstream Tx, or the corresponding time-frequency resource is the service channel of the IAB node downstream Tx, which can further be a semi-static service channel.

[0370] Optionally, the quasi-co-site reference signal of QCL-TypeA of the CSI-RS resource is a signal or channel on the upstream Tx, such as the SRS resource of the upstream Tx, that is, the SRS resource on the upstream Tx is included in the configuration information of the quasi-co-site reference signal of QCL-TypeA associated with the CSI-RS resource.

[0371] Optionally, the quasi-co-site reference signal of QCL-TypeA of the CSI-RS resource is a signal or channel on the downstream Tx, such as the SSB resource of the downstream Tx, that is, the SSB resource on the downstream Tx is included in the configuration information of the quasi-co-site reference signal of QCL-TypeA associated with the CSI-RS resource.

[0372] If the time-frequency resource configuration to be measured in the measurement configuration reported by the IAB node does not include a receive beam, the parent node performs corresponding measurements based on the historical receive beam of the IAB node. The measurement quantity includes at least one of the following: RSRP, RSRQ, SINR, path loss, and SIR.

[0373] The parent node feeds back the resource set index to the IAB node. Further, the fed-back resource set index of the time-frequency resource to be measured is a set index corresponding to the time-frequency resource to be measured corresponding to the threshold for which the reception performance of the parent node meets the threshold, where the threshold is met. At least one of the following: the measurement amount is greater than or equal to a specific threshold, the measurement amount is less than or equal to a specific threshold, the measurement amount is greater than a specific threshold, and the measurement amount is less than a specific threshold.

[0374] The parent node measures the received power of the time-frequency resource to be measured in the resource set, denoted as P_i. The parent node feeds back the resource set index corresponding to the P_i value that meets the threshold to the IAB node. The threshold corresponding to P_i is denoted as threshold_1. P_i can be the average RSRP value of the reference signal of different resources in a resource set, the minimum RSRP value of different resources in a resource set, or the maximum RSRP value of different resources in a resource set. Optionally, the parent node feeds back the P_i value that meets the threshold to the IAB node.

[0375] The parent node measures the channel quality of the reference signal of the upstream Tx of the IAB node. Channel quality can be characterized by one of the following quantities: RSRQ, SINR, CQI, or RSRP. The corresponding measurement quantities are denoted as RSRQ_s, SINR, or CQI, respectively. The parent node feeds back the index of the resource set corresponding to the measurement quantity that meets the threshold to the IAB node. The threshold corresponding to RSRQ_s, SINR, or CQI is denoted as threshold_2. Optionally, the parent node feeds back the RSRQ_s value, SINR value, or CQI value that meets the threshold to the IAB node.

[0376] The path loss corresponding to the time-frequency resource to be measured in the resource set measured by the parent node is recorded as PL_i. The parent node feeds back the resource set index corresponding to the PL_i that meets the threshold to the IAB node, and the threshold corresponding to PL_i is recorded as threshold_3. PL_i can be the average value of the path loss corresponding to the time-frequency resource to be measured of different resources in a resource set, or when the parent node feeds back the resource set index corresponding to the path loss greater than or equal to or greater than the threshold value, the path loss can also be the minimum path loss corresponding to the time-frequency resource to be measured in a resource set, or when the parent node feeds back the resource set index corresponding to the path loss less than or equal to or less than the threshold value, the path loss can also be the maximum path loss corresponding to the time-frequency resource to be measured in a resource set. Optionally, the parent node can feed back the PL_i value that meets the conditions to the IAB node.

[0377] The parent node measures the path loss corresponding to the reference signal of the upstream Tx of the IAB node, denoted as PL_s. The parent node also measures the path loss of the time-frequency resource to be measured in the resource set, denoted as PL_i. The ratio of PL_s to PL_i is denoted as SIR_PL = PL_s / PL_i. The parent node feeds back the resource set index corresponding to the SIR_PL that meets the threshold to the IAB node. The threshold corresponding to the SIR_PL is denoted as threshold_4. Optionally, the parent node can also feed back the SIR_PL value that meets the threshold to the IAB node.

[0378] The parent node measures the received signal power (PSP) corresponding to the reference signal of the upstream Tx of the IAB node, denoted as Ps. For example, the parent node measures the received signal power (SRS) of the upstream Tx of the IAB node. The parent node measures the received signal power (PI) of the time-frequency resource to be measured in the resource set, and the ratio of Ps to Pi is denoted as the measurement quantity SIR = Ps / Pi. The parent node feeds back the resource set index corresponding to the SIR that meets the threshold to the IAB node, and the corresponding SIR threshold is denoted as threshold_5. Optionally, the parent node feeds back the SIR value that meets the threshold to the IAB node.

[0379] When the IAB node receives feedback from the parent node in one of the following situations or a combination thereof, the IAB node considers that the IAB downstream Tx of the corresponding resource set index interferes with the parent node Rx:

[0380] The parent node feedback P_i is greater than or equal to threshold_1 corresponding to the resource set index;

[0381] The parent node feedback RSRQ_s or SINR or CQI is less than or equal to threshold_2 corresponding to the resource set index

[0382] The parent node feedback PL_i is less than or equal to threshold_3 corresponding to the resource set index;

[0383] The parent node feeds back the corresponding resource set index whose SIR_PL is less than or equal to threshold_4;

[0384] The parent node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0385] When the IAB node receives feedback from the parent node in one of the following situations or a combination thereof, the IAB node considers that the IAB downstream Tx of the corresponding resource set index does not interfere with the parent node Rx:

[0386] The parent node feedback P_i is less than or equal to threshold_1 corresponding to the resource set index;

[0387] The parent node feedback RSRQ_s or SINR or CQI is greater than or equal to threshold_2 corresponding to the resource set index;

[0388] The parent node feedback PL_i is greater than or equal to threshold_3 corresponding to the resource set index;

[0389] The parent node feedback SIR_PL is less than or equal to threshold_4 corresponding to the resource set index;

[0390] The parent node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0391] The above-mentioned SIR or SIR_PL is defined as the ratio of two quantities. If the two values ​​being compared are dB values, then the subtraction of the two quantities used to calculate the SIR or SIR_PL is the ratio.

[0392] The IAB node receives feedback from the parent node and can determine the beam in which the IAB node's downstream Tx causes interference to the parent node.

[0393] The IAB node performs downstream TX and upstream TX simultaneously. The IAB node selects the beam corresponding to the downstream TX so that the downstream TX of the IAB node does not interfere with the parent node or the downstream TX of the IAB node causes less interference to the parent node.

[0394] The above is only a description of a specific embodiment of the present invention. The expansion of this embodiment includes the following aspects, which are also within the scope of protection of this application.

[0395] The signal type of the measurement configuration is not limited to CSI-RS, and can also be SSB, DMRS, PTRS and other signals.

[0396] In one embodiment, the IAB node configures an association between SRS resources and CSI-RS resources for a child node or UE. The child node or UE performs a measurement operation and reports the measurement value to the IAB node. The IAB node receives the reported value from the child node or UE and avoids using a beam that may interfere with the child node or UE when performing upstream and downstream transmission simultaneously.

[0397] The upstream Tx of the IAB node may cause interference to the receiver subnode or UE of the downstream Tx of the IAB node. The IAB node can configure SRS for the subnode or UE.

[0398] The IAB node configures measurement configuration for the child node or UE.

[0399] The measurement configuration information includes one or more resource sets, and each resource set includes one or more reference signal configuration information;

[0400] The reference signal configuration information includes at least one of the following: time configuration, frequency domain configuration, sequence configuration, transmit power, and receive beam indication.

[0401] The reference signal may be an SRS or a DMRS. The measurement quantity includes at least one of the following: RSRP, target link quality, path loss value, and SIR.

[0402] The RSRP may be the RSRP of a reference signal in a measurement configuration measured by the UE or a subnode, or the RSRP of a reference signal (such as CSI-RS, SSB, DMRS, PTRS, etc.) of a downstream Tx of an IAB node measured by the UE or a subnode.

[0403] The target link quality is the RSRQ, SINR, or CQI of the reference signal of the downstream Tx of the IAB node measured by the UE or the child node.

[0404] SIR is the ratio of Ps to Pi, where Ps is the reference signal received power (RSRP) measured by the UE or child node at the downstream Tx of the IAB node, and Pi is the reference signal received power (RSRP) measured by the UE or child node at the upstream Tx of the IAB node. Power is often expressed in dB, so the power ratio corresponds to the difference in dB.

[0405] The path loss value is the path loss measured by the UE or the subnode according to the resources in the measurement configuration, or the path loss measured by the UE or the subnode between the IAB node and the UE or the subnode.

[0406] The feedback amount from the UE or child node to the IAB node includes at least one of the following: resource index, path loss of the corresponding resource, RSRP of the corresponding resource, RSRQ of the upstream Tx reference signal of the IAB node received by the parent node, and SINR of the upstream Tx reference signal of the IAB node received by the parent node.

[0407] The IAB node performs downstream TX and upstream TX simultaneously, and its downstream TX avoids beams that have a large interference effect on the parent node.

[0408] The measurement configuration configured by the IAB node for the UE or the subnode includes one or more SRS resource sets.

[0409] An SRS resource set includes one or more SRS resource configurations, or an SRS resource set includes one or more SRS resource configurations and a receive beam indication corresponding to the SRS resource set. An SRS resource configuration includes one or a combination of the following:

[0410] Frequency domain configuration of SRS resources;

[0411] Sequence configuration of SRS resources;

[0412] Time configuration of SRS resources;

[0413] SRS transmit power;

[0414] SRS resource quasi-co-site reference signal configuration;

[0415] The SRS resource receives a beam indication.

[0416] The frequency domain configuration includes at least one of the following: a bandwidth occupied by a reference signal, a frequency domain density of the reference signal, a subcarrier spacing of a reference channel, and a frequency domain offset of the reference signal.

[0417] The sequence configuration of the SRS resource includes at least one of the following: a reference signal sequence type, and a reference signal sequence generation method.

[0418] The time configuration includes at least one of the following: SRS period, SRS time offset, SRS effective measurement time, and timing offset between the SRS signal and the downstream Tx of the IAB node (the timing offset needs to be refined).

[0419] The period of SRS (denoted as P) refers to the periodicity of the IAB node sending the reference signal at P. Figure 4 The time offset of the reference signal refers to the time offset with the starting point of period P as the boundary. The time offset can be at least one of several radio frames, several subframes, several time slots, and several OFDM symbols, as shown in the attached figure. Figure 5 The effective measurement time of the reference signal indicates the effective time for the parent node to perform the reference signal measurement. For example, if the IAB node does not send the reference signal outside the effective time or the beam is changed or the power of the reference signal is changed, the child node or UE should not measure the reference signal at these time domain positions. Therefore, it is necessary to indicate the effective time for the child node or UE to perform the measurement as shown in the attached figure. Figure 6 shown.

[0420] The transmit power of the reference signal is the transmit power of the upstream Tx reference signal of the IAB node.

[0421] The UE or child node measures the reference signal of the IAB node according to the receive beam of the resource set configured by the IAB node. If the resource set configured by the IAB node does not include a receive beam, the UE or child node performs corresponding measurements according to the historical receive beam used in communication with the IAB node.

[0422] The UE or child node feeds back to the IAB node the resource set index corresponding to the measurement amount that meets the threshold, where the threshold is at least one of the following: the measurement amount is greater than or equal to a specific threshold, the measurement amount is less than or equal to a specific threshold, the measurement amount is greater than a specific threshold, and the measurement amount is less than a specific threshold.

[0423] The UE or child node measures the RSRP of the reference signal in a resource set, denoted as RSRP_i. The UE or child node feeds back the resource set index corresponding to the RSRP_i that meets the threshold to the IAB node. The threshold corresponding to RSRP_i is denoted as threshold_1. RSRP_i can be the average RSRP value of the reference signals of different resources in a resource set, the minimum RSRP value of the reference signals of different resources in a resource set, or the maximum RSRP value of the reference signals of different resources in a resource set. Optionally, the UE or child node feeds back the RSRP_i value that meets the threshold to the IAB node.

[0424] The UE or child node measures the channel quality corresponding to the reference signal of the downstream Tx of the IAB node. The channel quality can be characterized by one of the following quantities: RSRQ, SINR, or CQI. The corresponding measurement quantities are denoted as RSRQ_s, SINR, or CQI, respectively. The UE or child node feeds back the index of the resource set corresponding to the measurement quantity that meets the threshold to the IAB node. The threshold corresponding to RSRQ_s, SINR, or CQI is denoted as threshold_2. Optionally, the UE or child node feeds back the RSRQ_s value, SINR value, or CQI value that meets the threshold to the IAB node.

[0425] The UE or child node measures the reference signal path loss in the resource set, which is recorded as PL_i. The UE or child node feeds back the index of the resource set corresponding to the measurement value that meets the threshold to the IAB node, and the threshold corresponding to PL_i is recorded as threshold_3. PL_i can be the average value of the reference signal path loss of different resources in a resource set, or when the UE or child node feeds back the resource set index corresponding to the path loss greater than or equal to the threshold value, the path loss can also be the minimum value of the reference signal path loss of different resources in a resource set, or when the UE or child node feeds back the resource set index corresponding to the path loss less than or equal to the threshold value, the path loss can also be the maximum value of the reference signal path loss of different resources in a resource set. Optionally, the UE or child node can feed back the PL_i value that meets the threshold to the IAB node.

[0426] The UE or child node measures the path loss corresponding to the reference signal of the upstream Tx of the IAB node, denoted as PL_s. The UE or child node measures the path loss of the reference signal in the resource set, denoted as PL_i. The ratio of PL_s to PL_i is denoted as SIR_PL = PL_s / PL_i. The UE or child node feeds back the resource set index corresponding to the SIR_PL that meets the threshold to the IAB node. The threshold corresponding to the SIR_PL is denoted as threshold_4. Optionally, the UE or child node can feed back the SIR_PL value that meets the threshold to the IAB node.

[0427] The UE or child node measures the received signal power corresponding to the reference signal of the downstream Tx of the IAB node, denoted as Ps. For example, the UE or child node measures the received signal power of the CSI-RS of the downstream Tx of the IAB node. The UE or child node measures the received signal power of the reference signal in the resource set, denoted as Pi. The ratio of Ps to Pi is denoted as SIR = Ps / Pi. The UE or child node feeds back the resource set index corresponding to the SIR that meets the threshold to the IAB node, and the corresponding SIR threshold is denoted as threshold_5. Optionally, the UE or child node may feed back the SIR value that meets the threshold to the IAB node.

[0428] When the IAB node receives feedback from a UE or a child node that is one of the following or a combination of the following, the IAB node deems that the IAB upstream Tx corresponding to the resource set index causes interference to the UE or child node Rx:

[0429] The UE or child node feeds back the corresponding resource set index whose RSRP_i is greater than or equal to threshold_1;

[0430] The UE or child node feedback RSRQ_i is less than or equal to threshold_2 corresponding to the resource set index

[0431] The UE or child node feeds back the corresponding resource set index where PL_i is less than or equal to threshold_3;

[0432] The UE or child node feeds back the corresponding resource set index whose SIR_PL is less than or equal to threshold_4;

[0433] The UE or child node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0434] When the IAB node receives feedback from a UE or a child node that is one of the following or a combination of the following, the IAB node deems that the IAB upstream Tx corresponding to the resource set index does not cause significant interference to the UE or child node Rx:

[0435] The UE or child node feedback RSRP_i is less than or equal to threshold_1 corresponding to the resource set index;

[0436] The UE or child node feedback RSRQ_i is greater than or equal to threshold_2 corresponding to the resource set index;

[0437] The UE or child node feedback PL_i is greater than or equal to threshold_3 corresponding to the resource set index;

[0438] The UE or child node feedback SIR_PL is less than or equal to threshold_4 corresponding to the resource set index;

[0439] The UE or child node feeds back the corresponding resource set index whose SIR is less than or equal to threshold_5.

[0440] The above-mentioned SIR or SIR_PL is defined as the ratio of two quantities. If the two values ​​being compared are dB values, then the subtraction of the two quantities used to calculate the SIR or SIR_PL is the ratio.

[0441] The IAB node receives feedback from the UE or the sub-node and can determine the beam in which the upstream Tx of the IAB node causes interference to the UE or the sub-node.

[0442] The IAB node performs downstream TX and upstream TX simultaneously. Its upstream TX avoids using beams that cause interference to UEs or sub-nodes, or upstream TX uses beams that cause less interference to UEs or sub-nodes.

[0443] The above is only a description of a specific embodiment of the present invention. The expansion of this embodiment includes the following aspects, which are also within the scope of protection of this application.

[0444] The signal type of the measurement configuration is not limited to CSI-RS, and can also be SSB, DMRS, PTRS and other signals.

[0445] In one embodiment, a multiplexing device is provided, which is applied to a first node, such as Figure 11 As shown, the multiplexing device provided in the embodiment of the present application mainly includes a first sending module 101 and a first receiving module 102.

[0446] A first sending module 101 is configured to send measurement configuration information to a second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0447] The first receiving module 102 is configured to receive the measurement result sent by the second node.

[0448] In one embodiment, the measurement configuration information includes first measurement configuration information and second measurement configuration information, wherein the measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, or the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources; the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement.

[0449] In one embodiment, when the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, the reference signal configuration information includes one or more of the following:

[0450] Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

[0451] In one embodiment, the type of the reference signal includes one or more of the following:

[0452] Sounding reference signal SRS, channel state information reference signal CSI-RS, synchronization broadcast block SSB, control channel reference signal PDCCH DMRS, traffic channel reference signal PDSCH DMRS.

[0453] In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the time-frequency resource configuration information includes one or more of the following:

[0454] The channel type corresponding to the time-frequency resource, frequency domain configuration information, time configuration information, and whether the time limit is enabled.

[0455] In one embodiment, the time configuration information includes one or more of the following: occurrence timing, effective time and timing deviation, wherein the effective time is the effective time for the second node to perform the measurement operation, and the timing deviation is the amount of time adjusted for the second node to perform the measurement operation.

[0456] In one embodiment, the valid time includes one or more of the following: valid measurement duration, starting point, and offset.

[0457] In one embodiment, the measurement results include one or more of the following: the receiving power of the resources corresponding to the first measurement configuration information, the receiving power of the resources corresponding to the first measurement configuration information and the second measurement configuration information, the path loss value corresponding to the first measurement configuration information, the path loss value of the resources corresponding to the first measurement configuration information and the second measurement configuration information, and the link quality between the second node and the first node measured in the second measurement configuration information.

[0458] In one embodiment, the received power satisfies one of the following conditions:

[0459] The signal receiving power of the first measurement configuration information is greater than or equal to the first threshold;

[0460] The signal receiving power of the first measurement configuration information is less than or equal to the second threshold;

[0461] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is greater than or equal to a third threshold;

[0462] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is less than or equal to a fourth threshold.

[0463] In one embodiment, the path loss value satisfies one of the following conditions:

[0464] The path loss value corresponding to the signal of the first measurement configuration information is greater than or equal to a fifth threshold;

[0465] The path loss value corresponding to the signal of the first measurement configuration information is less than or equal to a sixth threshold;

[0466] The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is greater than or equal to a seventh threshold;

[0467] A ratio of a path loss value corresponding to a signal of the first measurement configuration information to a path loss value between the second node and the first node is less than or equal to an eighth threshold value.

[0468] The link quality between the second node and the first node measured in the second measurement configuration information is less than or equal to a ninth threshold.

[0469] The link quality between the second node and the first node measured in the second measurement configuration information is greater than or equal to a tenth threshold.

[0470] In one embodiment, the apparatus further includes: a data sending module configured to, after receiving the measurement result sent by the second node, select a beam combination that meets requirements based on the measurement result to perform simultaneous upstream and downstream transmission.

[0471] In one embodiment, the first node is an integrated access and backhaul IAB node, and the second node is a parent node of the IAB node, or the second node is a child node of the IAB node.

[0472] In one embodiment, the device also includes: a data receiving module, which is configured to, when the second node is the parent node of the IAB node, after receiving the measurement results sent by the second node, select a beam combination that meets the requirements based on the measurement results to perform simultaneous upstream and downstream transmission.

[0473] In one embodiment, the device further includes: a data receiving module, configured to, when the second node is a child node of the IAB node, after receiving the measurement result sent by the second node, select a beam combination that meets the requirements based on the measurement result to perform simultaneous upstream and downstream reception.

[0474] The multiplexing device provided in this embodiment can execute the multiplexing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not fully described in this embodiment, please refer to the multiplexing method provided in any embodiment of the present invention.

[0475] It is worth noting that in the embodiment of the above-mentioned multiplexing device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0476] In one embodiment, a multiplexing device is provided, wherein the multiplexing device is applied to the second node, such as Figure 12 As shown, the multiplexing method provided in the embodiment of the present application mainly includes a second receiving device 111 and a second sending device 112.

[0477] The second receiving device 111 is configured to receive measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of the resources corresponding to the measurement configuration information;

[0478] The second sending means 112 is configured to send the measurement result to the second node.

[0479] In one embodiment, the measurement configuration information includes first measurement configuration information and second measurement configuration information, wherein the measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, or the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources; the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement.

[0480] In one embodiment, when the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal, the reference signal configuration information includes one or more of the following:

[0481] Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

[0482] In one embodiment, the type of the reference signal includes one or more of the following:

[0483] Sounding reference signal SRS, channel state information reference signal CSI-RS, synchronization broadcast block SSB, control channel reference signal PDCCH DMRS, traffic channel reference signal PDSCH DMRS.

[0484] In one embodiment, when the measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the time-frequency resource configuration information includes one or more of the following:

[0485] The channel type corresponding to the time-frequency resource, frequency domain configuration information, time configuration information, and whether the time limit is enabled.

[0486] In one embodiment, the time configuration information includes one or more of the following: occurrence timing, effective time and timing deviation, wherein the effective time is the effective time for the second node to perform the measurement operation, and the timing deviation is the amount of time adjusted for the second node to perform the measurement operation.

[0487] In one embodiment, the valid time includes one or more of the following: valid measurement duration, starting point, and offset.

[0488] In one embodiment, the measurement results include one or more of the following: the receiving power of the resources corresponding to the first measurement configuration information, the receiving power of the resources corresponding to the first measurement configuration information and the second measurement configuration information, the path loss value corresponding to the first measurement configuration information, the path loss value of the resources corresponding to the first measurement configuration information and the second measurement configuration information, and the link quality between the second node and the first node measured in the second measurement configuration information.

[0489] In one embodiment, the received power satisfies one of the following conditions:

[0490] The signal receiving power of the first measurement configuration information is greater than or equal to the first threshold;

[0491] The signal receiving power of the first measurement configuration information is less than or equal to the second threshold;

[0492] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is greater than or equal to a third threshold;

[0493] A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is less than or equal to a fourth threshold.

[0494] In one embodiment, the path loss value satisfies one of the following conditions:

[0495] The path loss value corresponding to the signal of the first measurement configuration information is greater than or equal to a fifth threshold;

[0496] The path loss value corresponding to the signal of the first measurement configuration information is less than or equal to a sixth threshold;

[0497] The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is greater than or equal to a seventh threshold;

[0498] A ratio of a path loss value corresponding to a signal of the first measurement configuration information to a path loss value between the second node and the first node is less than or equal to an eighth threshold value.

[0499] The link quality between the second node and the first node measured in the second measurement configuration information is less than or equal to a ninth threshold.

[0500] The link quality between the second node and the first node measured in the second measurement configuration information is greater than or equal to a tenth threshold.

[0501] The multiplexing device provided in this embodiment can execute the multiplexing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not fully described in this embodiment, please refer to the multiplexing method provided in any embodiment of the present invention.

[0502] It is worth noting that in the embodiment of the above-mentioned multiplexing device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0503] The embodiment of the present application also provides a device, Figure 13 This is a schematic diagram of the structure of a device provided in an embodiment of the present application. Figure 12 As shown, the device includes a processor 121, a memory 122, an input device 123, an output device 124 and a communication device 125; the number of processors 121 in the device can be one or more. Figure 12 In the embodiment, a processor 121 is used as an example; the processor 121, the memory 122, the input device 123 and the output device 124 in the device can be connected by a bus or other means. Figure 12 The bus connection is taken as an example.

[0504] The memory 122, as a computer-readable storage medium, can be used to store software programs, computer executable programs, and modules, such as the program instructions / modules corresponding to the multiplexing method in the embodiment of the present application (for example, the first sending module 101 and the first receiving module 102 in the multiplexing device). Another example is the program instructions / modules corresponding to the multiplexing method in the embodiment of the present application (for example, the second receiving device 111 and the second sending device 112 in the multiplexing device). The processor 121 executes various functional applications and data processing of the device by running the software programs, instructions, and modules stored in the memory 122, that is, implementing any multiplexing method provided in the embodiment of the present application.

[0505] The memory 122 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created based on the use of the device, etc. In addition, the memory 122 may include a high-speed random access memory and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 122 may further include a memory remotely located relative to the processor 121, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0506] The input device 123 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 124 may include a display device such as a display screen.

[0507] The communication device 125 may include a receiver and a transmitter. The communication device 125 is configured to perform information transmission and reception communication according to the control of the processor 121.

[0508] It should be noted that, when the above-mentioned device is the first node, the processor 121 executes various functional applications and data processing by running the program stored in the system memory 122, for example, implementing the demultiplexing method provided in the embodiment of the present application, which includes:

[0509] Sending measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0510] Receive the measurement result sent by the second node.

[0511] Of course, those skilled in the art will appreciate that the processor 121 can also implement the technical solution of the multiplexing method provided in any embodiment of the present application. The hardware structure and functions of the device can be found in the explanation of the content of this embodiment.

[0512] It should be noted that, when the above-mentioned device is the second node, the processor 121 executes various functional applications and data processing by running the program stored in the system memory 122, for example, implementing the multiplexing method provided in the embodiment of the present application, which includes:

[0513] receiving measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information;

[0514] Send the measurement result to the first node.

[0515] Of course, those skilled in the art will appreciate that the processor 610 can also implement the technical solution of the message interaction method provided in any embodiment of the present application. The hardware structure and functions of the device can be found in the explanation of the content of this embodiment.

[0516] In an exemplary embodiment, the present application further provides a storage medium containing computer-executable instructions, wherein the computer-executable instructions, when executed by a computer processor, are used to perform a multiplexing method, the method being applied to a first node, including:

[0517] Sending measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information;

[0518] Receive the measurement result sent by the second node.

[0519] Of course, the storage medium containing computer-executable instructions provided in the embodiment of the present application, whose computer-executable instructions are not limited to the method operations described above, can also execute related operations in the multiplexing method provided in any embodiment of the present application.

[0520] An embodiment of the present application further provides a storage medium containing computer-executable instructions. When the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to perform a multiplexing method. The method is applied to a second node and includes:

[0521] receiving measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information;

[0522] Send the measurement result to the first node.

[0523] Of course, the storage medium containing computer-executable instructions provided in the embodiment of the present application, whose computer-executable instructions are not limited to the method operations described above, can also execute related operations in the multiplexing method provided in any embodiment of the present application.

[0524] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present application can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a computer's floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0525] The above description is merely an exemplary embodiment of the present application and is not intended to limit the scope of protection of the present application.

[0526] It will be appreciated by those skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.

[0527] In general, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.

[0528] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0529] The block diagram of any logical flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logical circuits, modules and functions, or can represent a combination of program steps and logical circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD optical disc) etc. Computer-readable media can include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FPGA) and a processor based on a multi-core processor architecture.

[0530] The above description of exemplary embodiments of the present application has been provided by way of exemplary and non-limiting examples. However, various modifications and adaptations to the above embodiments will be apparent to those skilled in the art, when considered in conjunction with the accompanying drawings and claims, without departing from the scope of the present invention. Therefore, the proper scope of the present invention will be determined by reference to the claims.

Claims

1. A multiplexing method, characterized in that: The method is applied to a first node and includes: Sending measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information; receiving a measurement result sent by the second node; wherein the measurement result is used by the first node to perform link transmission multiplexing; The measurement configuration information includes first measurement configuration information and second measurement configuration information; wherein the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal; and the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement; The reference signal configuration information includes one or more of the following: Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

2. The method according to claim 1, characterized in that The first measurement configuration information also includes time-frequency resource configuration information used by the second node to measure time-frequency resources.

3. The method according to claim 1, characterized in that The types of the reference signal include one or more of the following: Sounding reference signal SRS, channel state information reference signal CSI-RS, synchronization broadcast block SSB, control channel reference signal PDCCH DMRS, traffic channel reference signal PDSCH DMRS.

4. The method according to claim 2, characterized in that In a case where the first measurement configuration information includes time-frequency resource configuration information for the second node to measure time-frequency resources, the time-frequency resource configuration information includes one or more of the following: The channel type corresponding to the time-frequency resource, frequency domain configuration information, time configuration information, and whether the time limit is enabled.

5. The method according to claim 1 or 4, characterized in that The time configuration information includes one or more of the following: The occurrence opportunity, the effective time and the timing offset, wherein the effective time is the effective time for the second node to perform the measurement operation, and the timing offset is the amount of time adjusted by the second node to perform the measurement operation.

6. The method according to claim 5, characterized in that The effective time includes one or more of the following: Valid measurements include duration, start point, and offset.

7. The method according to claim 1, characterized in that The measurement results include one or more of the following: The receiving power of the resources corresponding to the first measurement configuration information, the receiving power of the resources corresponding to the first measurement configuration information and the second measurement configuration information, the path loss value corresponding to the first measurement configuration information, the path loss value of the resources corresponding to the first measurement configuration information and the second measurement configuration information, and the link quality between the second node and the first node measured in the second measurement configuration information.

8. The method according to claim 7, characterized in that The received power meets one of the following conditions: The signal receiving power of the first measurement configuration information is greater than or equal to the first threshold; The signal receiving power of the first measurement configuration information is less than or equal to the second threshold; A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is greater than or equal to a third threshold; A ratio of a signal reception power of the first measurement configuration information to a signal reception power of data sent upstream by the first node is less than or equal to a fourth threshold.

9. The method according to claim 7, characterized in that The path loss value satisfies one of the following conditions: The path loss value corresponding to the signal of the first measurement configuration information is greater than or equal to a fifth threshold; The path loss value corresponding to the signal of the first measurement configuration information is less than or equal to a sixth threshold; The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is greater than or equal to a seventh threshold; The ratio of the path loss value corresponding to the signal of the first measurement configuration information to the path loss value between the second node and the first node is less than or equal to an eighth threshold value; The link quality between the second node and the first node measured in the second measurement configuration information is less than or equal to a ninth threshold; The link quality between the second node and the first node measured in the second measurement configuration information is greater than or equal to a tenth threshold.

10. The method according to claim 1, characterized in that The first node is an integrated access and backhaul IAB node, and the second node is a parent node of the IAB node, or the second node is a child node of the IAB node.

11. The method according to claim 10, characterized in that In a case where the second node is a parent node of the IAB node, after receiving the measurement result sent by the second node, the method further includes: A beam combination that meets the requirements is selected based on the measurement result to perform simultaneous upstream and downstream transmission.

12. The method according to claim 10, characterized in that In a case where the second node is a child node of the IAB node, after receiving the measurement result sent by the second node, the method further includes: A beam combination that meets the requirements is selected based on the measurement result to perform simultaneous upstream and downstream reception.

13. A multiplexing method, characterized in that: The method is applied to the second node, comprising: receiving measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information; Sending a measurement result to the first node; wherein the measurement result is used by the first node to perform link transmission multiplexing; The measurement configuration information includes first measurement configuration information and second measurement configuration information; wherein the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal; and the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement; The reference signal configuration information includes one or more of the following: Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

14. A multiplexing device, characterized in that: The device is configured at the first node and includes: A first sending module is configured to send measurement configuration information to the second node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of a resource corresponding to the measurement configuration information; A first receiving module is configured to receive a measurement result sent by the second node; wherein the measurement result is used by the first node to perform link transmission multiplexing; The measurement configuration information includes first measurement configuration information and second measurement configuration information; wherein the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal; and the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement; The reference signal configuration information includes one or more of the following: Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

15. A multiplexing device, characterized in that: The device is configured at the second node and includes: A second receiving device is configured to receive measurement configuration information sent by the first node, wherein the measurement configuration information is used to instruct the second node to measure relevant information of resources corresponding to the measurement configuration information; A second sending module is configured to send a measurement result to the first node; wherein the measurement result is used by the first node to perform link transmission multiplexing; The measurement configuration information includes first measurement configuration information and second measurement configuration information; wherein the first measurement configuration information includes reference signal configuration information for the second node to measure a reference signal; and the second measurement configuration information includes quasi-co-site reference signal configuration information or corresponding spatial reception parameters corresponding to the second node measurement; The reference signal configuration information includes one or more of the following: Frequency domain configuration information, sequence configuration information, power configuration information, time configuration information, and whether the time limit is enabled.

16. A device, characterized in that include: one or more processors; a memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 13.

17. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 13 is implemented.

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