WO2023016367A1

WO2023016367A1 - Measurement method and device

Info

Publication number: WO2023016367A1
Application number: PCT/CN2022/110555
Authority: WO
Inventors: 文鸣
Original assignee: 维沃移动通信有限公司
Priority date: 2021-08-09
Filing date: 2022-08-05
Publication date: 2023-02-16
Also published as: CN115706705A

Abstract

Embodiments of the present application disclose a measurement method and device, which belong to the technical field of communications. The measurement method of the embodiments of the present application comprises: an integrated access and backhaul (IAB) node measures a first parameter to obtain a measurement result, wherein the first parameter comprises a layer 2 parameter, and the first parameter comprises at least one among the following: average throughput, data packet delay, and data packet loss rate.

Description

Measurement methods and equipment

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202110910511.7 filed in China on Aug. 9, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communication, and specifically relates to a measurement method and equipment, and the equipment may include an integrated access and backhaul (Integrated Access and Backhaul, IAB) node.

Background technique

The introduction of the IAB system is to solve the situation that the wired transmission network is not properly deployed when the access points are densely deployed, that is, when there is no wired transmission network, the access points can rely on wireless backhaul.

Due to the particularity of the IAB system, the measurement methods in the related technologies cannot be directly used in the IAB system, and there is no measurement method suitable for the IAB system in the related technologies, and the quality of service (Quality of Service, QoS) verification or QoS monitoring cannot be realized. , resulting in lower communication quality.

Contents of the invention

Embodiments of the present application provide a measurement method and device, which can solve the problem of low communication quality caused by inability to perform measurement on the IAB system in related systems.

In a first aspect, a measurement method is provided, including: an IAB node measures a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average throughput, Packet delay and packet loss rate.

In a second aspect, an IAB node is provided, including: a measurement module, configured to measure a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average Throughput, packet delay, and packet loss rate.

In a third aspect, an IAB node is provided, the IAB node includes a processor, a memory, and a program or instruction stored on the memory and operable on the processor, and the program or instruction is executed by the processor During execution, the method described in the first aspect is realized.

In a fourth aspect, an IAB node is provided, including a processor and a communication interface, wherein the processor is used to measure a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter Including at least one of the following: average throughput, data packet delay, and data packet loss rate.

In a fifth aspect, a readable storage medium is provided, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method as described in the first aspect is implemented.

A sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect .

In a seventh aspect, a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the program described in the first aspect the method described.

In the embodiment of the present application, the IAB node measures at least one of average throughput, packet delay, and packet loss rate to obtain the measurement result, so that the IAB node can also support instant minimum path measurement (Minimization of Drive Tests , MDT) measurement reporting to realize the monitoring of performance indicators in Operations And Maintenance (OAM), or the QoS verification or QoS monitoring of MDT to improve communication efficiency.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

Fig. 2 is the schematic flowchart of the measurement method according to the embodiment of the application;

FIG. 3 is a schematic diagram of delay measurement in a measurement method according to an embodiment of the present application;

FIG. 4 is a schematic diagram of delay measurement in a measurement method according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an IAB node according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for exemplary purposes, and uses NR terminology in most of the following descriptions, and these technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6 ^th Generation , 6G) communication system.

Fig. 1 shows a schematic diagram of a wireless communication system to which this embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network side device 12. Wherein, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robots, wearable devices (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture etc.) and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.) , smart wristbands, smart clothing, game consoles, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Next Generation Node B (gNB), Home Node B, Home Evolved Node B, WLAN Access point, WiFi node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that, In the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The measurement method and equipment provided by the embodiments of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Since there is no concept of Data Radio Bearer (DRB) in the F1-U protocol stack established between the IAB donor integration unit (IAB-donor-CU) and the access IAB distribution unit (Distributed Unit, DU), the IAB For mobile terminals (Mobile Termination, MT) (including access IAB and intermediate IAB), it can be seen that the concept of data packets being transmitted in the backhaul (Backhaul, BH) radio link control (Radio Link Control, RLC) channel, However, the traditional measurement is a measurement parameter calculated based on the granularity of the DRB. Therefore, the traditional measurement method is not suitable for the IAB system.

In addition, due to the introduction of a new protocol sublayer in the IAB system, that is, the Backhaul Adaptation Protocol (BAP) layer, it is necessary to consider the delay generated when the data packet is operated at the BAP layer. If the traditional Side measurement methods will result in inaccurate measurement calculations.

In summary, it is necessary to define layer 2 measurement parameters (such as average throughput, packet delay, and packet loss rate) in the IAB scenario, so that the IAB node can also support immediate (immediate) minimum path measurement (Minimization of Drive Tests, MDT) measurement reporting to realize the monitoring of performance indicators in Operations And Maintenance (OAM), or the QoS verification or QoS monitoring of MDT.

As shown in FIG. 2 , the embodiment of the present application provides a measurement method 200, which can be executed by an IAB node, in other words, the method can be executed by software or hardware installed on the IAB node, and the method includes the following steps.

S202: The IAB node measures the first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average throughput, data packet delay, and data packet loss rate.

Optionally, the IAB node (that is, the executor of the measurement) may be at least one of the following: 1) IAB mobile terminal (Mobile Termination, MT), 2) IAB distribution unit (Distributed Unit, DU), 3) IAB Donor Distribution Unit (IAB-donor-DU) and 4) IAB Donor Integration Unit (IAB-donor-CU).

In the measurement method provided by the embodiment of the present application, the IAB node measures at least one of the average throughput, the packet delay, and the packet loss rate to obtain the measurement result, so that the IAB node can also support real-time MDT measurement reporting, and realize OAM monitors performance indicators, or MDT QoS verification or QoS monitoring improves communication efficiency.

The following will be divided into three parts, and the measurement methods of average throughput, packet delay and packet loss rate will be introduced in detail.

first part

In this embodiment, the first parameter includes the average throughput, and the average throughput is measured according to at least one of the following granularities: 1) each BH link, 2) each BH link 3) each GPRS Tunneling Protocol-User Plane Tunnel Endpoint Identifier (GPRS Tunneling Protocol-User plane, Tunnel Endpoint Identifier, GTP-U TEID) and 4) each IAB node.

In a specific example, the implementer of the average throughput measurement is an IAB distribution unit (ie IAB-DU).

In this embodiment, the IAB node measures the first parameter to obtain a measurement result that includes at least one of the following:

1) In the case that the granularity of measurement includes each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channel on the first BH link in the first time period, so the first period of time.

The average throughput can be measured independently for uplink and downlink.

Optionally, the BH RLC channel on the first BH link includes at least one of the following: an uplink ingress BH RLC channel on the first BH link, a downlink egress BH RLC channel on the first BH link channel.

Optionally, in the uplink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the penultimate data packet in the burst data is successfully received The time point; on the BH RLC channel on the first BH link, the time point when the first data packet in the burst data starts to send.

In the downlink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes the available RLC service data unit (Service Data Unit, SDU) on the BH RLC channel, that is, the burst data has emptied all data in the current BH RLC channel buffer; After the RLC SDU on the BH RLC channel of the BH link is generated and available for transmission, the time point when the first data packet in the burst data starts to be sent, wherein there is no previous data packet available for transmission in the BH RLC channel RLC SDUs.

2) In the case where the granularity of measurement includes each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the first BH RLC channel in the second time period, the second time period.

The average throughput can be measured independently for uplink and downlink.

Optionally, the first BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, and a downlink egress BH RLC channel.

Optionally, in the uplink direction, the second time period is related to the following two: on the first BH RLC channel, the time point at which the penultimate data packet in the burst data is successfully received; the second On a BH RLC channel, the time point when the first data packet in the burst data starts to be sent.

In the downlink direction, the second time period is related to the following two: on the first BH RLC channel, the time point when the penultimate data packet in the burst data is successfully sent, the transmission of the burst data Contains the available RLC SDU on the first BH RLC channel, that is, the burst data clears all data in the first BH RLC channel buffer; the RLC SDU on the first BH RLC channel is generated and can be used After transmission, the time point when the first data packet in the burst data starts to be sent, wherein, there is no RLC SDU available for transmission in the first BH RLC channel before.

3) In the case where the granularity of measurement includes each GTP-U TEID, the measurement result is obtained according to the quotient of the following two: the data radio bearer DRB or GTP-U transmission of the first terminal UE within the third time period The total throughput of data, in the third time period, the first UE is a UE that uses the IAB node as an access node.

The average throughput can be measured independently for uplink and downlink.

Optionally, in the uplink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully received; the DRB Or on GTP-U, the point in time when the first data packet in a burst begins to be sent.

In the downlink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully sent, and the transmission of the burst data Contains the available RLC SDU on the DRB or GTP-U, that is, the burst data clears all data in the DRB or GTP-U buffer; the RLC SDU on the DRB or GTP-U is generated and available for After transmission, the time point at which the first data packet in the burst data is sent, wherein there is no RLC SDU available for transmission on the DRB or GTP-U before.

4) In the case that the granularity of measurement includes each IAB node, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channel on the BH link of the IAB node in the fourth time period, so the fourth time period.

The average throughput can be measured independently for uplink and downlink.

Optionally, the BH RLC channel on the BH link of the IAB node includes at least one of the following: an uplink ingress BH RLC channel on the BH link of the IAB node, a downlink channel on the BH link of the IAB node Egress BH RLC channel.

Optionally, in the uplink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the penultimate data packet in the burst data is successfully received Time point; on the BH RLC channel on the BH link of the IAB node, the time point when the first data packet in the burst data starts to be sent.

In the downlink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes available RLC SDUs on the BH RLC channel, that is, the burst data clears all data in the current BH RLC channel buffer; the BH RLC channel on the BH link of the IAB node , after the RLC SDU is generated and available for transmission, the time point when the first data packet in the burst data starts to be sent, wherein, there is no RLC SDU available for transmission in the BH RLC channel before.

In each of the above embodiments, for buffered data that can be included in an initial hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process for transmission of burst data (such as small data bursts), the average throughput is measured The transmission time (or transmission time period) corresponding to the burst data is determined as 0. In this embodiment, when calculating the average throughput, it is equivalent to ignoring the data volume of small burst data.

The average throughput calculated in each of the foregoing embodiments may include an average throughput of data that has undergone local rerouting.

For the data that has undergone local rerouting, when the BAP layer of the IAB node performs routing selection on the BAP PDU corresponding to the data: the export BH link selected for the BAP PDU and the head indication of the BAP PDU different egress BH links, and/or, the egress BH RLC channel selected for the BAP PDU is different from the first egress BH RLC channel based on the ingress BH RLC channel of the BAP PDU Selected.

Specifically, for the data that has undergone local rerouting, when the BAP PDU is routed at the BAP layer of the IAB node, the corresponding egress link is not selected according to the BAP routing ID (Destination ID+Path ID) indicated in the header of the BAP PDU The BAP PDU is delivered by the egress link, but the IAB node performs local rerouting (local-rerouting) to select another egress link for the BAP PDU.

The specific calculation method of the average throughput measurement will be introduced in detail below with multiple examples.

a) In the uplink direction, the granularity of measurement is per BH link (Per BH link per UL).

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _{BH RLC CH} ∑ _ThpTimeUl >0,

If Σ _{BH RLC CH} Σ _ThpTimeUl = 0, then M5 = 0 [kbit/s].

In each of the above formulas, for all buffered data that can be included in an initial HARQ process for transmission of "small data bursts", ThpTimeUl=0, otherwise, ThpTimeUl=T1-T2[ms], That is to say, in this embodiment, when calculating the average throughput, the data volume of small burst data is ignored.

In each of the above formulas:

T1 indicates the time point when the penultimate data packet in the burst data is successfully received on the BH RLC channel on the BH link.

T2 represents the time point when the first data packet in the burst data starts to be sent on the BH RLC channel on the BH link.

ThpTimeUl represents the time for transmitting burst data, excluding data transmitted in slots when the buffer is emptied.

ThpVolUl represents the RLC level capacity of burst data, excluding data transmitted in slots when the buffer is emptied.

b) In the downlink direction, the granularity of measurement is per BH link (Per BH link per DL)

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _{BH RLC CH} ∑ _ThpTimeDl >0,

If Σ _{BH RLC CH} Σ _ThpTimeDl = 0, M5 = 0 [kbit/s].

In each of the above formulas, for all buffered data that can be included in an initial HARQ process for transmission of "small data bursts", ThpTimeDl=0, otherwise ThpTimeDl=T1-T2[ms], also That is, in this embodiment, when calculating the average throughput, the data volume of small burst data is ignored.

In each of the above formulas:

T1 represents the time point at which the penultimate data packet in the burst data is successfully sent on the BH RLC channel on the BH link, and the transmission of the burst data includes the available RLC SDUs on the BH RLC channel.

T2 indicates the time point when the first data packet in the burst data after the RLC SDU is generated and available for transmission on the BH RLC channel on the BH link, and there is no RLC available for transmission in the BH RLC channel before SDUs.

ThpTimeUl represents the time to transmit burst data, excluding data transmitted in time slots when the buffer is emptied.

c) In the uplink direction, the granularity of measurement is each BH RLC channel of each BH link (per BH RLC channel per BH link per UL).

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _ThpTimeUl >0,

If _ΣThpTimeUl = 0, M5 = 0 [kbit/s].

In each of the above formulas, for all buffered data that can be included in an initial HARQ process for transmission of "small data bursts", ThpTimeUl=0, otherwise ThpTimeUl=T1-T2[ms], also That is, in this embodiment, when calculating the average throughput, the data volume of small burst data is ignored.

In each of the above formulas:

T1 indicates the time point when the penultimate data packet in the burst data is successfully received on the BH RLC channel.

T2 represents the time point when the first data packet in the burst data starts to be sent on the BH RLC channel.

d) In the downlink direction, the granularity of measurement is each BH RLC channel of each BH link (per BH RLC channel per BH link per DL).

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _ThpTimeDl >0,

If _ΣThpTimeDl =0, M5=0[kbit/s].

In each of the above formulas:

T1 represents the time point when the penultimate data packet in the burst data is successfully sent on the BH RLC channel, and the transmission of the burst data includes available RLC SDUs on the first BH RLC channel.

T2 indicates that on the BH RLC channel, the RLC SDU is generated and can be used for the time point when the first data packet in the burst data after transmission starts to be sent, and there is no RLC SDU available for transmission in the first BH RLC channel before.

e) In the uplink direction, the granularity of measurement is per GTP-U TEID (per GTP-U TEID per UL)

The execution node can maintain an independent counter for each mapped fifth-generation service quality identifier (5G QoS Identifier, 5QI).

The formula for calculating the average throughput M5 is as follows:

If ∑ _UEs ∑ _ThpTimeUl >0,

If Σ _UEs Σ _ThpTimeUl = 0, M5 = 0 [kbit/s].

In each of the above formulas:

T1 indicates the time point when the penultimate data packet in the burst data is successfully received on the DRB or GTP-U.

T2 represents the time point at which the first data packet in the burst data starts to be sent on the DRB or GTP-U.

f) In the downlink direction, the granularity of measurement is per GTP-U TEID (per GTP-U TEID per UL)

The execution node can maintain an independent counter for each mapped 5QI (5G QoS Identifier).

The formula for calculating the average throughput M5 is as follows:

If ∑ _UEs ∑ _ThpTimeDl >0,

If Σ _UEs Σ _ThpTimeDl = 0, M5 = 0 [kbit/s].

In each of the above formulas:

T1 represents the time point at which the penultimate data packet in the burst data is successfully transmitted on the DRB or GTP-U, and the transmission of the burst data includes available RLC SDUs on the DRB or GTP-U.

T2 indicates the time point at which the first data packet in the burst data after the RLC SDU is generated and available for transmission on the DRB or GTP-U, and there is no RLC SDU available for transmission on the DRB or GTP-U before .

g) In the uplink direction, the granularity of measurement is per IAB node (per IAB per UL).

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _{BH link} ∑ _{BH RLC CH} ∑ _ThpTimeUl >0,

If ∑ _{BH link} ∑ _{BH RLC CH} ∑ _ThpTimeUl = 0, M5 = 0 [kbit/s].

In each of the above formulas:

T1 represents the time point when the penultimate data packet in the burst data is successfully received on the BH RLC channel on the BH link of the IAB node.

T2 represents the time point when the first data packet in the burst data starts to be sent on the BH RLC channel on the BH link of the IAB node.

h) In the downlink direction, the granularity of measurement is per IAB node (per IAB per DL).

The execution node can maintain a separate counter for each BH RLC channel.

The formula for calculating the average throughput M5 is as follows:

If ∑ _{BH link} ∑ _{BH RLC CH} ∑ _ThpTimeDl >0,

If ∑ _{BH link} ∑ _{BH RLC CH} ∑ _ThpTimeDl = 0, M5 = 0 [kbit/s].

In each of the above formulas, for all buffered data that can be included in an initial HARQ process for transmission of "small data bursts", ThpTimeDl=0, otherwise, ThpTimeDl=T1-T2[ms], That is to say, in this embodiment, when calculating the average throughput, the data volume of small burst data is ignored.

In each of the above formulas:

T1 indicates the time point when the penultimate data packet in the burst data is successfully sent on the BH RLC channel on the BH link of the IAB node. The transmission of the burst data includes the available RLC on the BH RLC channel SDUs.

T2 indicates the time point at which the first data packet in the burst data after the RLC SDU is generated and available for transmission on the BH RLC channel on the BH link of the IAB node, and the BH RLC channel has not been used before. Transmitted RLC SDUs.

the second part

In this embodiment, the first parameter includes the data packet delay, and the data packet delay is measured according to the following granularity: each BH RLC channel of each BH link.

In one example, the data packet delay includes at least one of the following: D2.5, D2.6; wherein, D2.5 represents the delay experienced by the data packet from the BAP layer to the RLC layer in the uplink direction; D2. 6 represents the time delay experienced by the data packet in the uplink direction at the RLC layer, or D2.6 represents the time delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer.

In this embodiment, the measurement results obtained by the IAB node measuring the first parameter include: the IAB node obtains the BH RLC channel delay between two IAB nodes according to one of the following: D2.5+D2.1 +D2.6 or D2.5+D2.1; wherein, D2.1 represents the time delay experienced by data packets on the air interface in the uplink direction.

In this embodiment, D2.1 and D2.6 can be measured by the IAB-DU, and D2.5 can be measured by the IAB-MT.

Optionally, D2.5 is obtained according to at least one of the following: when the uplink BAP service data unit SDU arrives at the BAP upper layer service access point SAP, the uplink MAC PDU containing the first part of the uplink BAP SDU data is scheduled Time point for transmission, the number of uplink BAP SDUs arriving within the time interval T.

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer, D2.6 is obtained according to at least one of the following: the time point when the uplink RLC SDU is sent to the upper layer SAP or BAP, including all The time point at which the uplink RLC PDU of the first part of the data of the RLC SDU is received, and the number of the uplink RLC SDUs arriving within the time interval T.

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer, D2.6 is obtained according to at least one of the following: the time point when the uplink BAP SDU is sent to the upper SAP, including The time point at which the uplink RLC PDU of the first part of data of the uplink RLC SDU is received, and the number of the uplink RLC SDUs arriving within the time interval T.

In one example, the data packet delay includes at least one of the following: D5, D6; wherein, D5 represents the delay experienced by the data packet in the downlink direction from the BAP layer to the RLC layer; D6 represents the data packet in the downlink direction from the BAP layer to the RLC layer; The delay experienced by the MAC layer or RLC layer to the BAP layer.

In this embodiment, the measurement results obtained by the IAB node measuring the first parameter include: the IAB node obtains the BH RLC channel delay between two IAB nodes according to one of the following: D5+D1+D6 or D5 +D1; wherein, D1 represents the time delay experienced by data packets on the air interface in the downlink direction.

Optionally, D5 is obtained according to at least one of the following: the time point when the downlink BAP SDU arrives at the upper layer SAP of the BAP, the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent, and within the time interval T The number of the arrived downlink BAP SDUs.

D6 is obtained according to at least one of the following: the time point when the downlink media access control sublayer (Media Access Control, MAC) SDU arrives at the MAC layer or the time point when the downlink RLC SDU arrives at the RLC layer, the downlink MAC SDU or the downlink The time point at which the RLC SDU is sent to the upper-layer SAP, and the number of the downlink MAC SDU or the number of the downlink RLC SDU arriving within the time interval T.

The specific calculation method of the data packet delay will be introduced in detail below with multiple examples.

a) In the uplink direction, the granularity of measurement is each BH RLC channel of each BH link (per BH RLC channel per BH link per UL).

This embodiment introduces BAP layer-related delay measurements D2.5 and D2.6, as shown in FIG. 3 .

Define the BH RLC channel delay between IAB and IAB nodes (that is, BH RLC channel per hop) = D2.5+D2.1+D2.6 or D2.5+D2.1, that is, D2.6 is optional measurement volume.

D2.1 represents the time delay experienced by data packets on the air interface in the uplink direction.

The calculation formula of D2.5:

In this formula, M(T, BH RLC CH ID) represents the packet delay experienced from the BAP layer to the RLC layer in the uplink direction, and the result of the delay is the average value calculated at the time interval T.

tSched(i, BH RLC CH ID) indicates the time point when the i-th uplink BAP SDU arrives at the BAP upper layer service access point (Service Access Point SAP).

tSucc(i, BH RLC CH ID) indicates when "the k-th uplink MAC PDU containing the first part of data of the i-th uplink BAP SDU is scheduled for transmission time point.

I(T) represents the number of the uplink BAP SDUs arriving within the time interval T.

i represents an uplink BAP SDU arriving at the BAP layer within the time interval T.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

Calculation formula of D2.6:

Solution 1: D2.6 only includes the delay of the RLC layer

In this formula, M(T, BH RLC CH ID) represents the data packet delay experienced from the RLC layer to the BAP layer in the uplink direction, and the result of the delay is the average value calculated at the time interval T.

tSent(i, BH RLC CH ID) indicates the time point when the i-th uplink RLC SDU is sent to the upper layer SAP or BAP.

tReceiv(i, BH RLC CH ID) The time point at which the uplink RLC PDU containing the first part of data of the RLC SDU is received.

I(T) represents the number of uplink RLC SDUs.

i represents an uplink RLC SDU received by the RLC layer within the time interval T.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

Solution 2: D2.6 includes the delay of the BAP+RLC layer

tSent(i, BH RLC CH ID) indicates the time point when the i-th uplink BAP SDU is sent to the upper SAP.

tReceiv(i, BH RLC CH ID) indicates the time point when the uplink RLC PDU containing the first part of data of the RLC SDU is received.

I(T) represents the number of uplink RLC SDUs.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

b) In the downlink direction, the granularity of measurement is each BH RLC channel of each BH link (per BH RLC channel per BH link per DL).

This embodiment introduces delay measurements D5 and D6 related to the BAP layer, as specifically shown in FIG. 4 .

Define the BH RLC channel delay between the IAB and the IAB node (that is, the BH RLC channel per hop) = D5+D1+D6 or D5+D1, that is, D6 is an optional measurement quantity.

D1 represents the delay experienced by data packets on the air interface in the downlink direction.

The calculation formula of D5:

In this formula, M(T, BH RLC CH ID) represents the packet delay experienced from the BAP layer to the RLC layer in the downlink direction, and the result of the delay is the average value calculated at the time interval T.

tReceiv(i, BH RLC CH ID) indicates the time point when the downlink BAP SDUi arrives at the upper layer SAP of the BAP.

tSent(i, BH RLC CH ID) indicates the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent.

I(T) represents the number of downlink BAP SDUs.

i represents a downlink BAP SDU received by the BAP layer within the time interval T.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

The calculation formula of D6:

M(T, BH RLC CH ID) represents the packet delay experienced from the MAC layer or RLC layer to the BAP layer in the downlink direction, and the result of the delay is the average value calculated at the time interval T.

tReceiv(i, BH RLC CH ID) indicates the time point when the downlink MAC SDU i arrives at the MAC layer or the time point when the downlink RLC SDU i arrives at the RLC layer.

tSent(i, BH RLC CH ID) represents the time point when the downlink MAC SDU or the downlink RLC SDU is sent to the upper-layer SAP,

I(T) represents the number of the downlink MAC SDUs or the downlink RLC SDUs arriving within the time interval T.

i represents a downlink MAC SDU received by the MAC layer within a time interval T, or a downlink RLC SDU received by the RLC layer.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

the third part

In this embodiment, the first parameter includes the data packet loss rate, and the data packet loss rate is measured according to at least one of the following granularities: 1) each BH link, 2) each Each BH RLC channel of a BH link and 3) each IAB node.

In a specific example, the executor of the measurement of the packet loss rate of the uplink data packets is the IAB distribution unit (ie, the IAB-DU), and the executor of the measurement of the packet loss rate of the downlink data packets is the IAB mobile terminal (ie, the IAB-MT).

1) under the situation that the granularity of measurement is each BH link, obtain described measurement result according to following two quotients: the packet loss summation of the BH RLC channel on the second BH link in the 5th time period, The sum of data packets transmitted by the BH RLC channel on the second BH link in the fifth time period.

The data packet loss rate may be independently measured according to uplink and downlink.

Optionally, the BH RLC channel on the second BH link includes at least one of the following: an uplink ingress BH RLC channel on the second BH link, a downlink egress BH RLC channel on the second BH link channel.

2) In the case where the granularity of measurement is each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the second BH RLC channel in the sixth time period , the sum of data packets transmitted by the second BH RLC channel in the sixth time period.

Optionally, the second BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, and a downlink egress BH RLC channel.

3) under the situation that the granularity of measurement is each IAB node, obtain described measurement result according to the quotient of the following two: the packet loss sum of the BH RLC channel on the BH link of IAB node in the seventh time period, The sum of data packets transmitted by the BH RLC channel on the BH link of the IAB node in the seventh time period.

The specific calculation method of the packet loss rate will be introduced in detail below with multiple examples.

The formula for calculating the packet loss rate:

In this formula, M(T,BH RLC CH ID) represents the packet loss rate.

Dloss(T, BH RLC CH ID) indicates the number of uplink data packets sent on the BH RLC CH ID but not successfully received by the peer within the time interval T.

N(T, BH RLC CH ID) represents the number of uplink data packets sent on the BH RLC CH ID and successfully received by the opposite end within the time interval T.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

The formula for calculating the packet loss rate:

In this formula, M(T,BH RLC CH ID) represents the packet loss rate.

Dloss(T, BH RLC CH ID) indicates the number of downlink data packets sent on the BH RLC CH ID but not successfully received by the peer within the time interval T.

N(T, BH RLC CH ID) represents the number of downlink data packets sent on the BH RLC CH ID and successfully received by the opposite end within the time interval T.

T represents the time interval of the measurement.

BH RLC CH ID indicates the ID of the measured BH RLC channel.

c) In the uplink direction, the granularity of measurement is per BH link (Per BH link per UL).

The formula for calculating the packet loss rate:

For the meaning of each parameter in the formula, please refer to the description in a).

d) In the downlink direction, the granularity of measurement is per BH link (Per BH link per DL).

The formula for calculating the packet loss rate:

For the meaning of each parameter in the formula, please refer to the description in b).

e) In the uplink direction, the granularity of measurement is per IAB node (Per IAB-node per UL).

The formula for calculating the packet loss rate:

f) In the downlink direction, the granularity of measurement is per IAB node (Per IAB-node per DL).

The formula for calculating the packet loss rate:

It should be noted that, the measurement method provided in the embodiment of the present application may be executed by an IAB node, or a control module in the IAB node for executing the measurement method. In the embodiment of the present application, the IAB node provided in the embodiment of the present application is described by taking the measurement method performed by the IAB node as an example.

FIG. 5 is a schematic structural diagram of an IAB node according to an embodiment of the present application. As shown in FIG. 5 , the IAB node 500 includes the following modules.

The measurement module 502 may be configured to measure a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average throughput, packet delay, and packet loss packet rate.

In the embodiment of the present application, the IAB node measures at least one of the average throughput, packet delay, and packet loss rate to obtain the measurement result, so that the IAB node can also support instant MDT measurement reporting, and realize OAM Monitoring of performance indicators, or QoS verification or QoS monitoring of MDT to improve communication efficiency.

Optionally, as an embodiment, the IAB node includes at least one of the following: an IAB mobile terminal, an IAB distribution unit, an IAB host distribution unit, and an IAB host integration unit.

Optionally, as an embodiment, the first parameter includes the average throughput, and the average throughput is measured according to at least one of the following granularities: each BH link, each BH link Each BH RLC channel of each GTP-U TEID, and each IAB node.

Optionally, as an embodiment, the measurement module 502 is used for at least one of the following:

Optionally, as an embodiment, the BH RLC channel on the first BH link includes at least one of the following: an uplink ingress BH RLC channel on the first BH link, The downlink egress BH RLC channel; the first BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, a downlink egress BH RLC channel; the BH RLC channel on the BH link of the IAB node includes at least one of the following : the uplink ingress BH RLC channel on the BH link of the IAB node, the downlink egress BH RLC channel on the BH link of the IAB node.

Optionally, as an embodiment, the average throughput is independently measured according to uplink and downlink.

Optionally, as an embodiment, in the uplink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the penultimate one in the burst data The time point when the data packet is successfully received; on the BH RLC channel on the first BH link, the time point when the first data packet in the burst data starts to be sent; in the downlink direction, the first time period and The following two are related: on the BH RLC channel on the first BH link, at the time point when the penultimate data packet in the burst data is successfully sent, the transmission of the burst data includes the BH Available RLC SDU on the RLC channel; after the RLC SDU on the BH RLC channel of the first BH link is generated and available for transmission, the first data packet in the burst data starts to be sent, wherein , there is no RLC SDU available for transmission in the BH RLC channel before.

Optionally, as an embodiment, in the uplink direction, the second time period is related to the following two: on the first BH RLC channel, the time when the penultimate data packet in the burst data is successfully received point; on the first BH RLC channel, the time point when the first data packet in the burst data starts to be sent; in the downlink direction, the second time period is related to the following two: the first BH RLC On the channel, the time point when the penultimate data packet in the burst data is successfully sent, the transmission of the burst data includes the available RLC SDU on the first BH RLC channel; in the first BH RLC After the RLC SDU on the channel is generated and available for transmission, the first data packet in the burst data starts to be sent, wherein, there is no RLC SDU available for transmission in the first BH RLC channel before.

Optionally, as an embodiment, in the uplink direction, the third time period is related to the following two: on the DRB or GTP-U, the time when the penultimate data packet in the burst data is successfully received point; on the DRB or GTP-U, the time point at which the first data packet in the burst data starts to be sent; in the downlink direction, the third time period is related to the following two: the DRB or GTP- On U, the time point at which the penultimate data packet in the burst data is successfully sent, and the transmission of the burst data includes the available RLC SDU on the DRB or GTP-U; in the DRB or GTP-U After the RLC SDU on U is generated and available for transmission, the first data packet in the burst data starts to be sent, wherein there is no RLC SDU available for transmission on the DRB or GTP-U before.

Optionally, as an embodiment, in the uplink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the penultimate one in the burst data Data packets are successfully received time point; on the BH RLC channel on the BH link of the IAB node, the time point when the first data packet in the burst data starts to be sent; in the downlink direction, the fourth time period It is related to the following two: on the BH RLC channel on the BH link of the IAB node, the time point when the penultimate data packet in the burst data is successfully sent, and the transmission of the burst data includes the Available RLC SDUs on the BH RLC channel; on the BH RLC channel on the BH link of the IAB node, after the RLC SDU is generated and available for transmission, the time when the first data packet in the burst data starts to be sent Point, wherein, there is no RLC SDU available for transmission in the BH RLC channel before.

Optionally, as an embodiment, for burst data whose buffered data can be included in an initial HARQ process for transmission, the transmission time corresponding to the burst data is determined to be 0 when measuring the average throughput.

Optionally, as an embodiment, the average throughput includes an average throughput of data that has undergone local rerouting.

Optionally, as an embodiment, the backhaul adaptation protocol BAP layer of the IAB node corresponds to at least one of the following when routing the BAP PDU corresponding to the data: the egress BH selected for the BAP PDU The link is different from the egress BH link indicated by the header of the BAP PDU; the egress BH RLC channel selected for the BAP PDU is different from the first egress BH RLC channel according to the The ingress BH RLC channel of the BAP PDU is selected.

Optionally, as an embodiment, the first parameter includes the data packet delay, and the data packet delay is measured according to the following granularity: each BH RLC channel of each BH link.

Optionally, as an embodiment, the data packet delay includes at least one of the following: D2.5, D2.6; wherein, D2.5 represents the time experienced by the data packet in the uplink direction from the BAP layer to the RLC layer Delay; D2.6 indicates the delay experienced by the data packet in the uplink direction at the RLC layer, or D2.6 indicates the delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer.

Optionally, as an embodiment, the measurement module 502 is configured to obtain the BH RLC channel delay between two IAB nodes according to one of the following: D2.5+D2.1+D2.6 or D2. 5+D2.1; wherein, D2.1 represents the time delay experienced by data packets on the air interface in the uplink direction.

Optionally, as an embodiment, D2.5 is obtained according to at least one of the following: the time point when the uplink BAP service data unit SDU arrives at the BAP upper layer service access point SAP, including the first part of data of the uplink BAP SDU The time point when the uplink MAC PDU is scheduled for transmission, the number of the uplink BAP SDUs arriving within the time interval T; in the case where D2.6 represents the time delay experienced by the data packet in the RLC layer in the uplink direction, D2 .6 is obtained according to at least one of the following: the time point when the uplink RLC SDU is sent to the upper layer SAP or BAP, the time point when the uplink RLC PDU containing the first part of the data of the RLC SDU is received, and the time point that arrives within the time interval T The number of the uplink RLC SDUs; in the case where D2.6 represents the time delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer, D2.6 is obtained according to at least one of the following: the uplink BAP SDU is The time point sent to the upper SAP, the time point when the uplink RLC PDU containing the first part of the data of the uplink RLC SDU is received, and the number of the uplink RLC SDUs arriving within the time interval T.

Optionally, as an embodiment, the data packet delay includes at least one of the following: D5, D6; wherein, D5 represents the delay experienced by the data packet in the downlink direction from the BAP layer to the RLC layer; D6 represents the downlink The delay experienced by an upward data packet from the MAC layer or RLC layer to the BAP layer.

Optionally, as an embodiment, the measurement module 502 is configured to obtain the BH RLC channel delay between two IAB nodes according to one of the following: D5+D1+D6 or D5+D1; wherein, D1 represents Delay experienced by data packets on the air interface in the downlink direction.

Optionally, as an embodiment, D5 is obtained according to at least one of the following: the time point when the downlink BAP SDU arrives at the BAP upper layer SAP, and the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent , the number of the downlink BAP SDUs arriving within the time interval T; D6 is obtained according to at least one of the following: the time point when the downlink MAC SDU arrives at the MAC layer or the time point when the downlink RLC SDU arrives at the RLC layer, the downlink MAC The time point at which the SDU or the downlink RLC SDU is sent to the upper layer SAP, and the number of the downlink MAC SDU or the downlink RLC SDU arriving within the time interval T.

Optionally, as an embodiment, the first parameter includes the data packet loss rate, and the data packet loss rate is measured according to at least one of the following granularities: each BH link, each Each BH RLC channel of a BH link, and each IAB node.

Optionally, as an embodiment, the BH RLC channel on the second BH link includes at least one of the following: an uplink ingress BH RLC channel on the second BH link, The downlink egress BH RLC channel; the second BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, a downlink egress BH RLC channel; the BH RLC channel on the BH link of the IAB node includes at least one of the following : the uplink ingress BH RLC channel on the BH link of the IAB node, the downlink egress BH RLC channel on the BH link of the IAB node.

Optionally, as an embodiment, the data packet loss rate is independently measured according to uplink and downlink.

The IAB node 500 according to the embodiment of the present application can refer to the process of the method 200 corresponding to the embodiment of the present application, and each unit/module in the IAB node 500 and the above-mentioned other operations and/or functions are respectively in order to realize the corresponding in the method 200 process, and can achieve the same or equivalent technical effect, for the sake of brevity, no more details are given here.

The IAB node provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 6 , this embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601, For example, when the communication device 600 is an IAB node, when the program or instruction is executed by the processor 601, each process of the above measurement method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to measure a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following : Average throughput, packet delay and packet loss rate. The network-side device embodiment corresponds to the above-mentioned IAB node method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device, where the network side device may be an IAB node. As shown in FIG. 7 , the network side device 700 includes: an antenna 71 , a radio frequency device 72 , and a baseband device 73 . The antenna 71 is connected to a radio frequency device 72 . In the uplink direction, the radio frequency device 72 receives information through the antenna 71, and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72 , and the radio frequency device 72 processes the received information and sends it out through the antenna 71 .

The foregoing frequency band processing device may be located in the baseband device 73 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 73 , and the baseband device 73 includes a processor 74 and a memory 75 .

The baseband device 73 can include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The operation of the network side device shown in the above method embodiments.

The baseband device 73 may also include a network interface 76 for exchanging information with the radio frequency device 72, such as a common public radio interface (CPRI for short).

Specifically, the network side device in the embodiment of the present application also includes: instructions or programs stored in the memory 75 and operable on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute the modules shown in FIG. 5 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.

The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the above measurement method embodiment is realized, and the same Technical effects, in order to avoid repetition, will not be repeated here.

Wherein, the processor may be the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the various aspects of the above measurement method embodiments process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above measurement method The various processes of the embodiment can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to enable a terminal (which may be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of measurement comprising:

The integrated access and backhaul IAB node measures the first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average throughput, data packet delay, and data Packet loss rate.
The method according to claim 1, wherein the IAB node comprises at least one of the following: an IAB mobile terminal, an IAB distribution unit, an IAB host distribution unit, and an IAB host integration unit.
The method according to claim 1 or 2, wherein the first parameter includes the average throughput, and the average throughput is measured according to at least one of the following granularities:

Each backhaul BH link,

Each BH radio link of each BH link controls the RLC channel,

Each GPRS Tunneling Protocol-User Plane Tunnel Endpoint Identifier GTP-U TEID, and

Each IAB node.
The method according to claim 3, wherein the IAB node measures the first parameter to obtain a measurement result including at least one of the following:

In the case that the granularity of measurement includes each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channels on the first BH link in the first time period, the second a period of time;

In the case that the granularity of measurement includes each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the first BH RLC channel in the second time period, the second time period;

In the case where the granularity of measurement includes each GTP-U TEID, the measurement result is obtained according to the quotient of the following two: the number of data transmitted on the data radio bearer DRB or GTP-U of the first terminal UE within the third time period Throughput sum, the third time period, the first UE is a UE that uses the IAB node as an access node; and

In the case that the granularity of measurement includes each IAB node, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channel on the BH link of the IAB node in the fourth time period, the first Four time periods.
The method according to claim 4, wherein,

The BH RLC channel on the first BH link includes at least one of the following: an uplink ingress BH RLC channel on the first BH link, and a downlink egress BH RLC channel on the first BH link;

The first BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, a downlink egress BH RLC channel;

The BH RLC channel on the BH link of the IAB node includes at least one of the following: an uplink ingress BH RLC channel on the BH link of the IAB node, a downlink egress BH RLC channel on the BH link of the IAB node .
The method of claim 4, wherein the average throughput is measured independently for uplink and downlink.
The method of claim 6, wherein,

In the uplink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the time point at which the penultimate data packet in the burst data is successfully received; On the BH RLC channel on the first BH link, the time point when the first data packet in the burst data starts to send;

In the downlink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes the available RLC SDU on the BH RLC channel; after the RLC SDU on the BH RLC channel of the first BH link is generated and available for transmission, the first burst data in the burst data The point in time when a data packet starts to be sent, wherein, there is no RLC SDU available for transmission before in the BH RLC channel;

In the uplink direction, the second time period is related to the following two: on the first BH RLC channel, the second last data packet in the burst data is successfully received; the first BH RLC channel On, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the second time period is related to the following two: on the first BH RLC channel, the time point when the penultimate data packet in the burst data is successfully sent, the transmission of the burst data Contains the available RLC SDU on the first BH RLC channel; after the RLC SDU on the first BH RLC channel is generated and available for transmission, the time when the first data packet in the burst data starts to be sent point, wherein there is no RLC SDU available for transmission in the first BH RLC channel before;

In the uplink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully received; the DRB or GTP-U On, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully sent, and the transmission of the burst data Contains the available RLC SDU on the DRB or GTP-U; after the RLC SDU on the DRB or GTP-U is generated and available for transmission, the time when the first data packet in the burst data starts to be sent Point, wherein, there is no RLC SDU available for transmission on the DRB or GTP-U before;

In the uplink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the penultimate data packet in the burst data is successfully received; On the BH RLC channel on the BH link of the IAB node, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes the available RLC SDU on the BH RLC channel; on the BH RLC channel on the BH link of the IAB node, after the RLC SDU is generated and available for transmission, the RLC SDU in the burst data The point in time when the first data packet starts to be sent, wherein there is no RLC SDU available for transmission in the BH RLC channel before.
The method according to claim 4, wherein, for buffered data that can be included in an initial Hybrid Automatic Repeat Request (HARQ) process for transmission, when measuring the average throughput, the burst data corresponding to The transfer time is determined to be 0.
The method of claim 4, wherein the average throughput comprises an average throughput of locally rerouted data.
The method according to claim 9, wherein, when the backhaul adaptation protocol BAP layer of the IAB node is routing the BAP protocol data unit PDU corresponding to the data, it corresponds to at least one of the following:

The egress BH link selected for the BAP PDU is different from the egress BH link indicated by the header of the BAP PDU;

The egress BH RLC channel selected for the BAP PDU is different from the first egress BH RLC channel selected from the ingress BH RLC channel of the BAP PDU.
The method according to claim 1 or 2, wherein the first parameter includes the data packet delay, and the data packet delay is measured according to the following granularity:

Each BH RLC channel for each BH link.
The method according to claim 11, wherein the data packet delay includes at least one of the following: D2.5, D2.6;

Among them, D2.5 represents the delay experienced by the data packet from the BAP layer to the RLC layer in the uplink direction;

D2.6 indicates the time delay experienced by the data packet in the uplink direction at the RLC layer, or D2.6 indicates the time delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer.
The method according to claim 12, wherein said IAB node measures the first parameter and obtains the measurement result comprising: said IAB node obtains the BH RLC channel delay between two IAB nodes according to one of the following: D2 .5+D2.1+D2.6 or D2.5+D2.1;

Wherein, D2.1 represents the time delay experienced by the data packet in the uplink direction on the air interface.
The method of claim 12, wherein,

D2.5 is obtained according to at least one of the following: when the uplink BAP service data unit SDU arrives at the BAP upper layer service access point SAP, the uplink MAC PDU containing the first part of data of the uplink BAP SDU is scheduled for transmission Time point, the number of the uplink BAP SDUs arriving within the time interval T;

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer, D2.6 is obtained according to at least one of the following: the time point when the uplink RLC SDU is sent to the upper layer SAP or BAP, including all The time point at which the uplink RLC PDU of the first part of the data of the RLC SDU is received, the number of the uplink RLC SDUs arriving within the time interval T;

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer, D2.6 is obtained according to at least one of the following: the time point when the uplink BAP SDU is sent to the upper SAP, including The time point at which the uplink RLC PDU of the first part of data of the uplink RLC SDU is received, and the number of the uplink RLC SDUs arriving within the time interval T.
The method according to claim 11, wherein the data packet delay comprises at least one of the following: D5, D6;

Among them, D5 represents the delay experienced by the data packet from the BAP layer to the RLC layer in the downlink direction;

D6 represents the delay experienced by data packets from the MAC layer or RLC layer to the BAP layer in the downlink direction.
The method according to claim 15, wherein the IAB node measures the first parameter and obtains the measurement result comprising: the IAB node obtains the BH RLC channel delay between two IAB nodes according to one of the following: D5 +D1+D6 or D5+D1;

Wherein, D1 represents the time delay experienced by the data packet in the downlink direction on the air interface.
The method of claim 15, wherein,

D5 is obtained according to at least one of the following: the time point when the downlink BAP SDU arrives at the BAP upper layer SAP, the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent, and the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent, and the The number of downlink BAP SDUs;

D6 is obtained according to at least one of the following: the time point when the downlink MAC SDU arrives at the MAC layer or the time point when the downlink RLC SDU arrives at the RLC layer, the time point when the downlink MAC SDU or the downlink RLC SDU is sent to the upper SAP, The number of the downlink MAC SDUs or the downlink RLC SDUs arriving within the time interval T.
The method according to claim 1 or 2, wherein the first parameter includes the data packet loss rate, and the data packet loss rate is measured according to at least one of the following granularities:

Each BH link,

each BH RLC channel of each BH link, and

Each IAB node.
The method according to claim 18, wherein the measurement result obtained by the IAB node from measuring the first parameter includes at least one of the following:

In the case where the granularity of measurement is each BH link, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the BH RLC channel on the second BH link in the fifth time period, the The sum of data packets transmitted by the BH RLC channel on the second BH link in the fifth time period;

In the case where the granularity of measurement is each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the second BH RLC channel in the sixth time period, so The sum of data packets transmitted by the second BH RLC channel in the sixth time period; and

In the case where the granularity of measurement is each IAB node, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the BH RLC channel on the BH link of the IAB node in the seventh time period, the The sum of data packets transmitted by the BH RLC channel on the BH link of the IAB node in the seventh time period.
The method of claim 19, wherein,

The BH RLC channel on the second BH link includes at least one of the following: an uplink ingress BH RLC channel on the second BH link, and a downlink egress BH RLC channel on the second BH link;

The second BH RLC channel includes at least one of the following: an uplink ingress BH RLC channel, a downlink egress BH RLC channel;

The BH RLC channel on the BH link of the IAB node includes at least one of the following: an uplink ingress BH RLC channel on the BH link of the IAB node, a downlink egress BH RLC channel on the BH link of the IAB node .
The method according to claim 19, wherein the data packet loss rate is independently measured according to uplink and downlink.
An IAB node, including:

A measurement module, configured to measure a first parameter to obtain a measurement result, the first parameter includes a layer 2 parameter, and the first parameter includes at least one of the following: average throughput, packet delay, and packet loss Rate.
The IAB node according to claim 22, wherein the IAB node comprises at least one of the following: an IAB mobile terminal, an IAB distribution unit, an IAB host distribution unit, and an IAB host integration unit.
The IAB node according to claim 22 or 23, wherein the first parameter includes the average throughput, and the average throughput is measured according to at least one of the following granularities:

Each BH link,

Each BH radio link of each BH link controls the RLC channel,

Each GPRS Tunneling Protocol-User Plane Tunnel Endpoint Identifier GTP-U TEID, and

Each IAB node.
The IAB node according to claim 24, wherein the measurement module is used for at least one of the following:

In the case that the granularity of measurement includes each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channels on the first BH link in the first time period, the second a period of time;

In the case that the granularity of measurement includes each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the throughput sum of the first BH RLC channel in the second time period, the second time period;

In the case where the granularity of measurement includes each GTP-U TEID, the measurement result is obtained according to the quotient of the following two: the number of data transmitted on the data radio bearer DRB or GTP-U of the first terminal UE within the third time period Throughput sum, the third time period, the first UE is a UE that uses the IAB node as an access node; and

In the case that the granularity of measurement includes each IAB node, the measurement result is obtained according to the quotient of the following two: the throughput sum of the BH RLC channel on the BH link of the IAB node in the fourth time period, the first Four time periods.
The IAB node according to claim 25, wherein said average throughput is measured independently for uplink and downlink.
The IAB node according to claim 26, wherein,

In the uplink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the time point at which the penultimate data packet in the burst data is successfully received; On the BH RLC channel on the first BH link, the time point when the first data packet in the burst data starts to send;

In the downlink direction, the first time period is related to the following two: on the BH RLC channel on the first BH link, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes the available RLC SDU on the BH RLC channel; after the RLC SDU on the BH RLC channel of the first BH link is generated and available for transmission, the first burst data in the burst data The point in time when a data packet starts to be sent, wherein, there is no RLC SDU available for transmission before in the BH RLC channel;

In the uplink direction, the second time period is related to the following two: on the first BH RLC channel, the second last data packet in the burst data is successfully received time point; the first BH RLC channel On, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the second time period is related to the following two: on the first BH RLC channel, the time point when the penultimate data packet in the burst data is successfully sent, the transmission of the burst data Contains the available RLC SDU on the first BH RLC channel; after the RLC SDU on the first BH RLC channel is generated and available for transmission, the time when the first data packet in the burst data starts to be sent point, wherein there is no RLC SDU available for transmission in the first BH RLC channel before;

In the uplink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully received; the DRB or GTP-U On, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the third time period is related to the following two: on the DRB or GTP-U, the time point when the penultimate data packet in the burst data is successfully sent, and the transmission of the burst data Contains the available RLC SDU on the DRB or GTP-U; after the RLC SDU on the DRB or GTP-U is generated and available for transmission, the time when the first data packet in the burst data starts to be sent Point, wherein, there is no RLC SDU available for transmission on the DRB or GTP-U before;

In the uplink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the penultimate data packet in the burst data is successfully received; On the BH RLC channel on the BH link of the IAB node, the time point when the first data packet in the burst data starts to be sent;

In the downlink direction, the fourth time period is related to the following two: on the BH RLC channel on the BH link of the IAB node, the time point when the penultimate data packet in the burst data is successfully sent, so The transmission of the burst data includes the available RLC SDU on the BH RLC channel; on the BH RLC channel on the BH link of the IAB node, after the RLC SDU is generated and available for transmission, the RLC SDU in the burst data The point in time when the first data packet starts to be sent, wherein there is no RLC SDU available for transmission in the BH RLC channel before.
The IAB node according to claim 26, wherein, for buffered data that can be contained in an initial HARQ process for transmission, the transmission time corresponding to the burst data is determined as 0.
The IAB node according to claim 22 or 23, wherein the first parameter includes the data packet delay, and the data packet delay is measured according to the following granularity:

Each BH RLC channel for each BH link.
The IAB node according to claim 29, wherein the data packet delay includes at least one of the following: D2.5, D2.6;

Among them, D2.5 represents the delay experienced by the data packet from the BAP layer to the RLC layer in the uplink direction;

D2.6 indicates the delay experienced by the data packet in the uplink direction at the RLC layer, or D2.6 indicates the delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer.
The IAB node according to claim 30, wherein the measurement module is used to obtain the BH RLC channel delay between two IAB nodes according to one of the following: D2.5+D2.1+D2.6 or D2.5+D2.1;

Wherein, D2.1 represents the time delay experienced by the data packet in the uplink direction on the air interface.
The IAB node of claim 30, wherein,

D2.5 is obtained according to at least one of the following: when the uplink BAP service data unit SDU arrives at the BAP upper layer service access point SAP, the uplink MAC PDU containing the first part of data of the uplink BAP SDU is scheduled for transmission Time point, the number of the uplink BAP SDUs arriving within the time interval T;

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer, D2.6 is obtained according to at least one of the following: the time point when the uplink RLC SDU is sent to the upper layer SAP or BAP, including all The time point at which the uplink RLC PDU of the first part of the data of the RLC SDU is received, the number of the uplink RLC SDUs arriving within the time interval T;

In the case where D2.6 represents the delay experienced by the data packet in the uplink direction at the RLC layer and the BAP layer, D2.6 is obtained according to at least one of the following: the time point when the uplink BAP SDU is sent to the upper SAP, including The time point at which the uplink RLC PDU of the first part of data of the uplink RLC SDU is received, and the number of the uplink RLC SDUs arriving within the time interval T.
The IAB node according to claim 29, wherein the data packet delay includes at least one of the following: D5, D6;

Among them, D5 represents the delay experienced by the data packet from the BAP layer to the RLC layer in the downlink direction;

D6 represents the delay experienced by data packets from the MAC layer or RLC layer to the BAP layer in the downlink direction.
The IAB node according to claim 33, wherein the measurement module is used to obtain the BH RLC channel delay between two IAB nodes according to one of the following: D5+D1+D6 or D5+D1;

Wherein, D1 represents the time delay experienced by the data packet in the downlink direction on the air interface.
The IAB node of claim 33, wherein,

D5 is obtained according to at least one of the following: the time point when the downlink BAP SDU arrives at the BAP upper layer SAP, the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent, and the time point when the last part of the RLC SDU corresponding to the downlink BAP SDU is scheduled and sent, and the The number of downlink BAP SDUs;

D6 is obtained according to at least one of the following: the time point when the downlink MAC SDU arrives at the MAC layer or the time point when the downlink RLC SDU arrives at the RLC layer, the time point when the downlink MAC SDU or the downlink RLC SDU is sent to the upper SAP, The number of the downlink MAC SDUs or the downlink RLC SDUs arriving within the time interval T.
The IAB node according to claim 22 or 23, wherein the first parameter includes the data packet loss rate, and the data packet loss rate is measured according to at least one of the following granularities:

Each BH link,

each BH RLC channel of each BH link, and

Each IAB node.
The IAB node according to claim 36, wherein the measurement module is used for at least one of the following:

In the case where the granularity of measurement is each BH link, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the BH RLC channel on the second BH link in the fifth time period, the The sum of data packets transmitted by the BH RLC channel on the second BH link in the fifth time period;

In the case where the granularity of measurement is each BH RLC channel of each BH link, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the second BH RLC channel in the sixth time period, so The sum of data packets transmitted by the second BH RLC channel in the sixth time period; and

In the case where the granularity of measurement is each IAB node, the measurement result is obtained according to the quotient of the following two: the sum of the packet loss numbers of the BH RLC channel on the BH link of the IAB node in the seventh time period, the The sum of data packets transmitted by the BH RLC channel on the BH link of the IAB node in the seventh time period.
An IAB node, which includes a processor, a memory, and a program or instruction stored on the memory and operable on the processor, and when the program or instruction is executed by the processor, the implementation of claim 1 to the measurement method described in any one of 21.
A readable storage medium, storing programs or instructions on the readable storage medium, and implementing the measurement method according to any one of claims 1 to 21 when the programs or instructions are executed by a processor.
A chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and realize the measuring method according to any one of claims 1 to 21 .
A computer program is provided, the computer program is stored in a non-transitory storage medium, and the computer program is executed by at least one processor to implement the measuring method according to any one of claims 1 to 21.