CN109391338B

CN109391338B - Interference measurement method and device

Info

Publication number: CN109391338B
Application number: CN201710686723.5A
Authority: CN
Inventors: 任毅; 秦熠; 栗忠峰; 卓义斌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2021-05-04
Anticipated expiration: 2037-08-11
Also published as: WO2019029462A1; CN109391338A

Abstract

An interference measurement method and device are used for measuring interference in a relay system. The method comprises the following steps: the method comprises the steps that first equipment sends first configuration information to second equipment, or the first equipment receives second configuration information sent by the second equipment, the first configuration information and the second configuration information are configuration information of N reference signals sent by the second equipment to third equipment, the second equipment is a relay node of the first equipment and the third equipment, and N is larger than or equal to 1; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

Description

Interference measurement method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to an interference measurement method and apparatus.

Background

In a communication system, relay (relay) transmission is introduced to improve the coverage of a base station: one or more Relay Nodes (RNs) are added between the base station and the ue and are responsible for forwarding the wireless signals one or more times, that is, the wireless signals need to pass through multiple hops before reaching the ue. There are three types of network elements in a relay system: the connection relationship among the base station, the relay node, the user equipment, and the three types of network elements may be as shown in fig. 1. The link between the base station and the relay node is referred to as a Backhaul Link (BL), and the link between the relay node and the user equipment is referred to as an Access Link (AL).

In a relay communication system, since there are data transmissions of two links (a backhaul link and an access link), interference between the two links may cause system performance degradation.

Therefore, how to measure the interference between two links becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides an interference measurement method and device, which are used for measuring the interference of an access link to a return link in a relay system.

In a first aspect, an embodiment of the present application provides an interference measurement method, including the following steps:

the first device sends first configuration information to the second device, or the first device receives second configuration information sent by the second device, the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to the third device, the second device is the second device of the first device and the third device, and N is larger than or equal to 1. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

The first device may be a network device, the third device may be a user equipment, and the second device is a relay node of the network device and the user equipment. Further, the first device may be a relay node in the relay system, and the third device may be another relay node other than the second device. In the embodiment of the present application, only the second device is limited to be a relay node of the first device and the third device, and the device types of the first device and the second device are not limited. For example, when the first device is a network device, the second device is a relay node, and the third device is also a relay node, the second device and the third device are both considered as relay nodes between the network device and the user equipment; when the first device is a relay node, the second device is a relay node, and the third device is a user device, both the first device and the second device can be regarded as a relay node between the network device and the user device.

With the above scheme, since the first device sends the first configuration information to the second device (i.e., the second device of the first device and the third device), and the first configuration information is the configuration information of the N reference signals sent by the second device to the third device, that is, the second device may send the N reference signals to the third device according to the first configuration information. Since the first configuration information is known to the first device, the first device may perform interference measurement on N reference signals sent by the second device to the third device based on the first configuration information, so that the first device may know interference of a link (i.e., an access link) between the second device and the third device on a link (i.e., a backhaul link) between the first device and the second device.

In one possible design, the method further includes: the first device measures the N reference signals according to the first configuration information or the second configuration information.

By adopting the above scheme, the first device may measure the N reference signals according to the first configuration information, thereby determining, according to the measurement result, interference of a link (i.e., an access link) between the second device and the third device on a link (i.e., a backhaul link) between the first device and the second device.

In one possible design, the method further includes: the first device sends third configuration information to the second device, wherein the third configuration information is the configuration information of at least one reference signal in the N reference signals;

wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

By adopting the scheme, the second device can send a signal to the third device according to the third configuration information so as to reduce the interference of the access link to the backhaul link.

In one possible design, the method further includes: the first device sends a measurement of at least one of the N reference signals to the second device.

By adopting the scheme, the second device can determine which configuration is based on in the subsequent process of sending the signal to the third device according to the measurement result of the at least one reference signal.

In one possible design, the measurement result of the at least one reference signal includes at least one of: identification or configuration information of at least one reference signal; a reference signal received power, RSRP, of the at least one reference signal; a channel quality indication, CQI, of at least one reference signal; a signal-to-interference ratio, SIR, of the at least one reference signal; a signal to interference plus noise ratio, SINR, of the at least one reference signal.

In a second aspect, an embodiment of the present application provides an interference measurement method, including the following steps: the method comprises the steps that a second device receives first configuration information sent by a first device, or the second device sends second configuration information to the first device, the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to a third device, the second device is a second device of the first device and the third device, and N is larger than or equal to 1; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

In one possible design, the method further includes: and the second equipment sends N reference signals to the third equipment according to the first configuration information or the second configuration information.

In one possible design, the method further includes: the second device receives third configuration information sent by the first device, wherein the third configuration information is configuration information of at least one reference signal in the N reference signals; wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

In one possible design, the method further includes: the second device receives a measurement result of at least one reference signal in the N reference signals transmitted by the first device.

In one possible design, the measurement result of the at least one reference signal includes at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal.

In a third aspect, an embodiment of the present application provides an interference measurement method, including the following steps: the first device receives a measurement result sent by the second device, the measurement result is a measurement result of at least one reference signal in N reference signals sent by the third device to the second device, the second device is a second device of the first device and the third device, and N is larger than or equal to 1.

By adopting the above scheme, the second device sends the measurement result of at least one reference signal to the first device, wherein the at least one reference signal is at least one reference signal of N reference signals sent by the third device to the second device. The first device may screen all or a portion of the reference signals from the at least one reference signal according to the measurement result of the at least one reference signal, and send configuration information of all or a portion of the reference signals to the second device. All or part of the reference signals screened by the first device may be reference signals correspondingly sent by the third device when the access link interferes the backhaul link less. After the second device sends the configuration information of all or part of the reference signals to the third device, the third device may send the configuration information of all or part of the reference signals based on the configuration information of all or part of the reference signals when sending signals to the second device in the subsequent process, so as to reduce the interference of the access link to the backhaul link.

In one possible design, before the first device receives the measurement result sent by the second device, the method further includes: the method comprises the steps that first configuration information is sent to second equipment by first equipment, and the first configuration information is configuration information of N reference signals; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference indices of N reference signals.

With the above scheme, after the first device sends the first configuration information to the second device, the second device may send the first configuration information to the third device, and then the third device may send the N reference signals to the second device based on the first configuration information. The second device may also measure the N reference signals according to the first configuration information while the third device sends the reference signal to the second device.

In one possible design, before the first device receives the measurement result sent by the second device, the method further includes: the first device sends resource configuration information to the second device, wherein the resource configuration information is used for indicating resources used when the second device sends the measurement result.

By adopting the scheme, the second equipment can send the measurement result to the first equipment on the resource indicated by the resource configuration information after receiving the resource configuration information.

In one possible design, the method further includes: the first equipment sends second configuration information to the second equipment, wherein the second configuration information is the configuration information of all or part of reference signals in at least one reference signal; wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; the carrier frequency of all or part of the reference signal; the sequence of all or part of the reference signals is the subcarrier spacing of all or part of the reference signals; port information of all or part of the reference signals; reference signal indices of all or part of the reference signals.

By adopting the above scheme, the second device can send the second configuration information to the third device after receiving the second configuration information, and the third device can subsequently send a signal to the second device based on the second configuration information, so as to reduce the interference of the access link to the backhaul link.

In one possible design, the measurement results are believed to include at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal.

In a fourth aspect, an embodiment of the present application provides an interference measurement method, including the following steps: the second device sends a measurement result to the first device, wherein the measurement result is the measurement result of at least one reference signal in N reference signals sent to the second device by the third device, the second device is the second device of the first device and the third device, and N is larger than or equal to 1.

With the above scheme, the second device sends the measurement result of at least one reference signal to the first device, where the at least one reference signal is at least one reference signal of N reference signals sent by the third device to the second device. The first device may screen all or a portion of the reference signals from the at least one reference signal according to the measurement result of the at least one reference signal, and send configuration information of all or a portion of the reference signals to the second device. All or part of the reference signals screened by the first device may be reference signals correspondingly sent by the third device when the access link interferes the backhaul link less. After the second device sends the configuration information of all or part of the reference signals to the third device, the third device may send the configuration information of all or part of the reference signals based on the configuration information of all or part of the reference signals when sending signals to the second device in the subsequent process, so as to reduce the interference of the access link to the backhaul link.

In one possible design, before the second device sends the measurement result to the first device, the method further includes: the second equipment receives first configuration information sent by the first equipment, wherein the first configuration information is configuration information of N reference signals; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

In one possible design, before the second device sends the measurement result to the first device, the method further includes: and the second equipment receives resource configuration information sent by the first equipment, wherein the resource configuration information is used for indicating resources used when the second equipment sends the measurement result information.

In one possible design, the method further includes: the second equipment receives second configuration information sent by the first equipment, wherein the second configuration information is configuration information of all or part of reference signals in at least one reference signal; wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; the carrier frequency of all or part of the reference signal; a sequence of all or part of a reference signal; subcarrier spacing for all or part of the reference signals; port information of all or part of the reference signals; reference signal indices of all or part of the reference signals.

In one possible design, the measurement results include at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; a ratio SINR of at least one reference signal.

In a fifth aspect, an embodiment of the present application further provides a first device, where the first device has a function of implementing a behavior of the first device in the interference measurement method provided in the first aspect and/or the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the first device includes a sending unit, a receiving unit, and a processing unit, and these units may execute functions of corresponding behaviors in the interference measurement method provided in the first aspect and/or the third aspect, for which specific reference is made to detailed descriptions in the interference measurement method provided in the first aspect and/or the third aspect, which is not repeated herein.

In one possible design, the first device includes a transmitter, a receiver, a processor, and a memory, where the transmitter and the receiver are used for performing communication interaction with other devices (e.g., a second device and a third device) in the relay system, and the processor is configured to support the first device to perform corresponding functions in the interference measurement method provided in the first aspect and/or the third aspect. The memory is coupled to the processor and retains program instructions and data necessary for the first device.

In a sixth aspect, an embodiment of the present application further provides a second device, where the second device has a function of implementing a behavior of the second device in the interference measurement method example provided in the second aspect and/or the fourth aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the second device includes a sending unit, a receiving unit, and a processing unit, and these units may perform corresponding functions in the interference measurement method example provided in the second aspect and/or the fourth aspect, specifically refer to the detailed description in the interference measurement method example provided in the second aspect and/or the fourth aspect, and are not repeated here.

In one possible design, the second device includes a transmitter, a receiver, a processor, and a memory, in a structure, the transmitter and the receiver are used for performing communication interaction with other devices (e.g., the first device and the third device) in the relay system, and the processor is configured to support the second device to perform corresponding functions in the interference measurement method provided in the second aspect and/or the fourth aspect. The memory is coupled to the processor and retains program instructions and data necessary for the second device.

In a seventh aspect, an embodiment of the present application further provides a communication system, where the communication system includes the first device provided in the fifth aspect and the second device provided in the sixth aspect.

In an eighth aspect, the present application provides a computer program product, the computer program product comprising a computer program stored on the first non-transitory computer storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the method provided by the first aspect or any one of the designs of the first aspect, or perform the method provided by the second aspect or any one of the designs of the second aspect, or perform the method provided by the third aspect or any one of the designs of the third aspect, or perform the method provided by the fourth aspect or any one of the designs of the fourth aspect.

In a ninth aspect, the present application provides a computer storage medium, which stores computer-executable instructions, and when the computer-executable instructions are called by a computer, the computer executes the method provided by the first aspect or any one of the designs of the first aspect, or the method provided by the second aspect or any one of the designs of the second aspect, or the method provided by the third aspect or any one of the designs of the third aspect, or the method provided by the fourth aspect or any one of the designs of the fourth aspect.

Drawings

Fig. 1 is a schematic diagram of a connection relationship between three types of network elements in a relay system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a first interference measurement method according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a second interference measurement method according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a third interference measurement method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a fourth interference measurement method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of a fifth interference measurement method according to an embodiment of the present application;

fig. 7 is a flowchart illustrating a sixth interference measurement method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a first apparatus according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a second apparatus according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a first second apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a second apparatus according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a third first apparatus provided in an embodiment of the present application;

fig. 13 is a schematic structural diagram of a fourth first apparatus provided in an embodiment of the present application;

fig. 14 is a schematic structural diagram of a third second apparatus provided in an embodiment of the present application;

fig. 15 is a schematic structural diagram of a fourth second apparatus provided in the embodiment of the present application.

Detailed Description

In a communication system, due to the introduction of high frequency communication, coverage problems and coverage hole problems caused by occlusion become challenges in designing a wireless communication system. In order to improve the coverage of network devices such as base stations, relay (relay) transmission is introduced.

In a relay system, in order to reduce interference between a backhaul link and an access link, interference between the two links needs to be measured first, so that configuration of each network element in the relay system is changed according to interference between the two links, thereby reducing interference between the two links.

The following describes an application scenario of an embodiment of the present application.

As shown in fig. 1, in the embodiment of the present application, three types of network elements exist in a relay system: base station, relay node and user equipment. Of course, the relay system shown in fig. 1 is an example of a scenario in which a wireless signal reaches a user equipment through two hops, and a scenario in which a wireless signal reaches a user equipment through more than two hops also exists in a specific implementation, at this time, the user equipment in fig. 1 may be replaced by another relay node.

In order to make the present application easier to understand, some basic concepts related to the embodiments of the present application are explained first below. It should be noted that these explanations are for the purpose of making the examples of the present application easier to understand, and should not be construed as limiting the scope of protection claimed in the present application.

First, second and third devices

In this embodiment, the first device may be a network device, the third device may be a user equipment, and the second device is a relay node of the network device and the user equipment. Further, the first device may be a relay node in the relay system, and the third device may be another relay node other than the second device. In the embodiment of the present application, only the second device is limited to be a relay node of the first device and the third device, and the device types of the first device and the second device are not limited. For example, when the first device is a network device, the second device is a relay node, and the third device is also a relay node, the second device and the third device are both considered as relay nodes between the network device and the user equipment; when the first device is a relay node, the second device is a relay node, and the third device is a user device, both the first device and the second device can be regarded as a relay node between the network device and the user device.

Specifically, in this embodiment of the present application, the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved node B (eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), and may also be a home evolved node B (HeNB), a home base station (femto), a pico base station (pico) and the like, and types of the network device are not specifically limited in this embodiment.

In particular, in the embodiments of the present application, the user device may be a device providing voice and/or data connectivity to a user, a handheld device corresponding to a wireless connection function, or other processing device connected to a wireless modem. User equipment, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers corresponding to the mobile terminals, for example, mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, may communicate with one or more core networks via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The user equipment may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user terminal equipment (CPE), a user agent (user agent), or a user equipment (user equipment), which is not limited in the embodiment of the present application.

Two, reference signal

In the embodiment of the present application, the reference signal includes, but is not limited to, a channel state information reference signal (CSI RS), a Synchronization Signal (SS), and a channel Sounding Reference Signal (SRS).

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

The application provides an interference measurement method and device, which are used for measuring interference between a return link and an access link in a relay system. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

It is to be noted that a plurality referred to in the present application means two or more; in the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor order.

The interference measurement method provided by the present application will be described below by three embodiments, respectively.

Example one

Referring to fig. 2, a method for measuring interference is provided in an embodiment of the present application. The method comprises the following steps:

s201: the base station sends the first configuration information to the relay node, and correspondingly, the relay node receives the first configuration information sent by the base station.

In S201, the first configuration information is configuration information of N reference signals sent by the relay node to the user equipment, where N is greater than or equal to 1.

The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

In the interference measurement method shown in fig. 2, the base station may be the aforementioned first device, the relay node may be the aforementioned second device, and the user equipment may be the aforementioned third device. Of course, the first device may also be another relay node in the relay system except for the second device, and the third device may also be another relay node in the relay system except for the second device, which is not limited in this embodiment of the present application.

It should be noted that, in S201, the base station may actively send the first configuration information to the relay node, or may send the first configuration information to the relay node based on a request of the relay node, which is not limited in this embodiment of the application. Furthermore, since the relay node may transmit based on different numerologies when transmitting the reference signal to the user equipment, the first configuration information transmitted by the base station to the relay node may also indicate which numerology the relay node transmits based on when transmitting the reference signal to the user equipment.

Optionally, in S201, after the base station sends the first configuration information to the relay node, the relay node may send N reference signals to the user equipment according to the first configuration information, and then, the base station may measure the N reference signals according to the first configuration information, so as to determine, according to a measurement result, interference of a link (i.e., an access link) between the relay node and the user equipment on a link (i.e., a backhaul link) between the base station and the relay node.

Specifically, N reference signals sent by the relay node to the user equipment may be sent by using different shaped beams. For example, the relay node may respectively transmit N reference signals to the user equipment using N shaped beams, and at this time, the first configuration information may be used to indicate which shaped beam the relay node uses when transmitting the reference signal. Then, the base station may measure, according to the first configuration information, interference of a link between the relay node and the user equipment (i.e., an access link) under the N shaped beams to a link between the base station and the relay node (i.e., a backhaul link).

After the base station performs interference measurement on the N reference signals, the base station needs to indicate, according to the measurement result, which configuration the relay node transmits based on when subsequently transmitting a signal to the user equipment, so as to reduce interference of the access link on the backhaul link. The indication may be in a variety of ways, two of which are listed below.

In a first mode

After the base station performs interference measurement on the N reference signals, the base station may send third configuration information to the relay node, where the third configuration information is configuration information of at least one reference signal in the N reference signals, so that the relay node may send a signal to the user equipment according to the third configuration information, so as to reduce interference of the access link on the backhaul link.

In the first mode, after the base station performs interference measurement on the N reference signals, the base station may screen out at least one reference signal of the N reference signals according to a measurement result, and send configuration information of the at least one reference signal to the relay node. The measurement result as referred to herein may contain at least one of the following information: reference Signal Received Power (RSRP) of the N reference signals, Channel Quality Indicator (CQI) of the N reference signals, signal-to-interference ratio (SIR) of the N reference signals, and signal-to-interference plus noise ratio (SINR) of the N reference signals. That is to say, when the relay node sends the reference signal to the user equipment, the base station may measure one or more of parameters such as RSRP, CQI, SIR, SINR, and the like of the reference signal, and then determine, according to the measurement result, interference of an access link where the reference signal is located on a backhaul link; after the base station completes the measurement of the N reference signals, at least one reference signal may be screened out according to the measurement results of the N reference signals, and the configuration information (third configuration information) of the at least one reference signal is sent to the relay node.

The at least one reference signal screened by the base station may be a reference signal correspondingly sent by the relay node when the interference of the access link to the backhaul link is small. In particular, when the relay node uses N shaped beams to respectively send N reference signals to the user equipment, at least one reference signal selected by the base station corresponds to at least one shaped beam one to one, that is, the third configuration information sent by the base station to the relay node indicates that the interference of the access link to the backhaul link is small when the relay node uses the at least one shaped beam to send at least one reference signal to the user equipment. Then, after receiving the third configuration information, the relay node may learn: when the signal is sent to the user equipment subsequently, the at least one shaped beam can be adopted for sending, so that the interference of an access link to a return link is reduced.

It should be noted that, in the embodiment of the present application, the types of information included in the first configuration information and the third configuration information may be different. For example, the first configuration information may include transmission times and carrier frequencies of N reference signals, and the third configuration information may include port information and a reference signal index of at least one reference signal; alternatively, the first configuration information may include a sequence of N reference signals and a carrier frequency, and the third configuration information may include a subcarrier spacing and a carrier frequency of at least one reference signal.

Mode two

After the base station performs interference measurement on the N reference signals, the base station may send a measurement result of at least one reference signal of the N reference signals to the relay node; correspondingly, the relay node receives the measurement result of at least one reference signal in the N reference signals sent by the base station, so that the relay node determines which configuration to send in the process of sending signals to the user equipment subsequently according to the measurement result of the at least one reference signal.

Wherein the measurement result of the at least one reference signal comprises at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal.

It should be noted that, in the second mode, the measurement result of the at least one reference signal may include not only the parameters of the at least one reference signal, such as RSRP, CQI, SIR, and SINR, but also the identification and configuration information of the at least one reference signal, because: if the base station only sends one or more of the parameters such as RSRP, CQI, SIR and SINR of at least one reference signal to the relay node, it is difficult for the relay node to recognize which reference signals of the N reference signals sent by the relay node to the user equipment are the at least one reference signal. Accordingly, the base station may send the identification and configuration information of the at least one reference signal in the measurement result for the relay node to recognize the at least one reference signal. Wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

The difference between the second mode and the first mode is that: in the first mode, at least one reference signal is screened by the base station according to the measurement results of the N reference signals, and the base station sends configuration information (i.e., third configuration information) of the at least one reference signal to the relay node, and the relay node can send the configuration information (i.e., third configuration information) based on the at least one reference signal when sending a signal to the user equipment in the subsequent process; in the second method, the at least one reference signal may be preliminarily screened from the N reference signals by the base station according to the measurement result, or the N reference signals that are not screened may be sent to the relay node by the base station, the relay node may further screen the at least one reference signal after receiving the measurement result of the at least one reference signal, and may send the at least one reference signal based on configuration information of all or part of the reference signals in the at least one reference signal when sending a signal to the user equipment in the subsequent step.

In addition, in the interference measurement method shown in fig. 2, in order to make the measurement result more accurate, the relay node may also send the reference signal to the base station on the same time-frequency resource while sending the reference signal to the user equipment each time, and in order to facilitate the distinction, the reference signal sent by the relay node to the base station is referred to as a "second reference signal" in the embodiment of the present application. When the relay node sends the reference signal to the user equipment and the base station on the same time-frequency resource, data transmission exists in the access link and the return link simultaneously, so that the measurement result under the condition is more accurate. In particular, in the above process, the second reference signal transmitted by the relay node to the base station may be a zero power reference signal (ZP RS). That is to say, the relay node sends the reference signal for interference measurement to the user equipment and sends the ZP RS to the base station on the same time-frequency resource, and at this time, since both the access link and the backhaul link occupy the time-frequency resource, the reference signal transmission on the time-frequency resource is not interfered by other signals, and the base station measures the reference signal on the time-frequency resource, so that the measurement result is more accurate.

In the interference measurement method shown in fig. 2, since the base station transmits the first configuration information to the relay node, and the first configuration information is the configuration information of the N reference signals transmitted by the relay node to the user equipment, that is, the relay node may transmit the N reference signals to the user equipment according to the first configuration information. Since the first configuration information is known to the base station, the base station may perform interference measurement on N reference signals transmitted by the relay node to the user equipment based on the first configuration information, so that the base station may know interference of a link (i.e., an access link) between the relay node and the user equipment to a link (i.e., a backhaul link) between the base station and the relay node.

Based on the above description of the first embodiment, the embodiment of the present application further provides an interference measurement method, which can be regarded as a specific example of the method shown in fig. 2, and the method shown in fig. 2 can be referred to each other. Referring to fig. 3, the method comprises the steps of:

s301, the relay node sends a request message to the base station to request the base station to configure the time-frequency resource used when the relay node sends the reference signal to the user equipment.

The time-frequency resource used when the relay node sends the reference signal to the user equipment may be regarded as a specific example of the first configuration information in the method shown in fig. 2.

As described above, the first configuration information is configuration information of N reference signals sent by the relay node to the user equipment. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals. Then, in the method shown in fig. 3, the time-frequency resources used when the relay node transmits the reference signal to the user equipment may be regarded as the transmission times of the N reference signals and the carrier frequencies of the N reference signals.

S302: and the base station sends a response message to the relay node so as to configure the time-frequency resource used when the relay node sends the reference signal to the user equipment.

In addition, in S302, the base station may further configure the relay node to send N ZP RSs to the base station on the time-frequency resource. Wherein, ZP RS is a specific example of the second reference signal in the method shown in fig. 2. Because the power of the ZP RS is zero, the relay node does not actually send a reference signal to the base station, but only occupies the time-frequency resource between the base station and the relay node. The benefits of this are: the relay node sends N reference signals for interference measurement to the user equipment on the same time-frequency resource and sends N ZP RSs to the base station, at the moment, the reference signals sent on the time-frequency resource are not interfered by other signals, and the base station can measure the reference signals on the time-frequency resource, so that the interference of an access link to a return link is accurately determined.

In S302, the response message sent by the base station to the relay node may be a higher layer signaling or a Downlink Control Information (DCI). Wherein, the higher layer signaling includes but is not limited to: a Radio Resource Control (RRC) message, a media access control layer control element (MAC CE), a broadcast message, a system message, and the like.

S303: and the relay node transmits a reference signal to the user equipment by adopting one shaped beam of the N shaped beams on the time frequency resource.

S304: and the base station measures the interference of the access link to the return link under the shaped beam.

Specifically, the base station may measure parameters such as RSRP, CQI, SIR, and SIN of the reference signal on the time-frequency resource occupied by the ZP RS, thereby determining interference of the access link to the backhaul link under the shaped beam.

Executing S303-S304N times: that is, the relay node sends the parameter signal to the user equipment by using different shaped beams each time S303 is executed, and the base station measures the interference of the access link under each shaped beam to the return link each time S304 is executed. Then, by performing S303-S304N times, the base station can determine the interference of the access link to the backhaul link under N shaped beams.

S305: the base station sends a notification message to the relay node to notify the relay node of the set of shaped beams that can be used when sending signals to the user equipment.

In S305, the shaped beam included in the set of shaped beams that the relay node can adopt when sending a signal to the user equipment is at least one of the N shaped beams.

In S305, the set of shaped beams indicated by the base station to the relay node through the notification message may be regarded as a specific example of the third configuration information in the method shown in fig. 2. In the method shown in fig. 2, the third configuration information is the configuration information of at least one reference signal of the N reference signals screened by the base station according to the measurement result, and in the method shown in fig. 3, the shaped beam set is at least one shaped beam of the N shaped beams screened by the base station; since N shaped beams and N reference signals are in one-to-one correspondence in the method shown in fig. 3, the base station instructs the relay node to transmit a signal to the user equipment by using at least one of the N shaped beams through the notification message, that is, the method is equivalent to the method shown in fig. 2 in which the base station transmits configuration information (that is, third configuration information) of at least one of the N reference signals to the relay node.

In S305, the notification message sent by the base station to the relay node may be higher layer signaling or DCI. Wherein, the higher layer signaling includes but is not limited to: RRC messages, MAC CEs, broadcast messages, system messages, etc.

In the method shown in fig. 3, when the shaped beams used for signal transmission between the relay node and the base station are different, the shaped beams included in the set of shaped beams transmitted by the base station to the relay node in S305 may be the same or different. For example, when the relay node transmits a request message to the base station using the shaped beam a in S301 and transmits a response message to the relay node using the shaped beam B in S302, the set of shaped beams transmitted to the relay node by the base station in S305 includes a shaped beam 1, a shaped beam 2, and a shaped beam 3; then, when the relay node transmits the request message to the base station using the shaped beam C in S301 and the base station transmits the response message to the relay node using the shaped beam D in S302, the shaped beams included in the set of shaped beams transmitted to the relay node by the base station in S305 may be the shaped beam 1, the shaped beam 2, and the shaped beam 3, or may be the shaped beam 4, the shaped beam 5, and the shaped beam 6.

Through the method shown in fig. 3, the base station may configure a shaped beam set used when the relay node sends a signal to the user equipment, so as to reduce interference of the access link to the backhaul link.

Example two

Referring to fig. 4, a method for interference measurement is provided in an embodiment of the present application. The method comprises the following steps:

s401: the relay node sends the second configuration information to the base station, and correspondingly, the base station receives the second configuration information sent by the relay node.

In S401, the second configuration information is configuration information of N reference signals sent by the relay node to the user equipment, where N is greater than or equal to 1.

It should be noted that, since the relay node may transmit based on different numerologies when transmitting the reference signal to the user equipment, the second configuration information may further indicate which numerology the relay node transmits based on when transmitting the reference signal to the user equipment.

The difference between the second embodiment and the first embodiment is that: in the first embodiment, configuration information (first configuration information) of N reference signals is determined by a base station and then sent to a relay node, the relay node may send the N reference signals to a user equipment based on the first configuration information sent by the base station, and the base station may perform interference measurement according to the first configuration information determined by the base station; in the second embodiment, the configuration information (i.e., the second configuration information) of the N reference signals is determined by the relay node and then sent to the base station, the relay node may send the N reference signals to the user equipment based on the second configuration information determined by the relay node, and the base station may also perform interference measurement based on the second configuration information received from the relay node.

Optionally, in S401, after the relay node sends the second configuration information to the base station, the relay node may send N reference signals to the user equipment according to the second configuration information, and then the base station may measure the N reference signals according to the second configuration information, so as to determine, according to the measurement result, interference of a link (i.e., an access link) between the relay node and the user equipment on a link (i.e., a backhaul link) between the base station and the relay node.

Specifically, the N reference signals transmitted by the relay node to the user equipment may be transmitted by using different shaped beams. For example, the relay node may respectively transmit N reference signals to the user equipment using N shaped beams, and at this time, the second configuration information may be used to indicate which shaped beam the relay node uses when transmitting the reference signal. Then, the base station may measure, according to the second configuration information, interference of a link between the relay node and the user equipment (i.e., an access link) under the N shaped beams to a link between the base station and the relay node (i.e., a backhaul link).

In a first mode

In the first mode, after the base station performs interference measurement on the N reference signals, the base station may screen out at least one reference signal of the N reference signals according to a measurement result, and send configuration information of the at least one reference signal to the relay node. The measurement result as referred to herein may contain at least one of the following information: RSRP of N reference signals, CQI of N reference signals, SIR of N reference signals, SINR of N reference signals. That is to say, when the relay node sends the reference signal to the user equipment, the base station may measure one or more of parameters such as RSRP, CQI, SIR, SINR, and the like of the reference signal, and then determine, according to the measurement result, interference of an access link where the reference signal is located on a backhaul link; after the base station completes the measurement of the N reference signals, at least one reference signal may be screened out according to the measurement results of the N reference signals, and the configuration information (third configuration information) of the at least one reference signal is sent to the relay node.

It should be noted that, in the embodiment of the present application, the types of information included in the second configuration information and the third configuration information may be different. For example, the second configuration information may include transmission times and carrier frequencies of N reference signals, and the third configuration information may include port information and a reference signal index of at least one reference signal; alternatively, the second configuration information may include a sequence of N reference signals and a carrier frequency, and the third configuration information may include a subcarrier spacing and a carrier frequency of at least one reference signal.

Mode two

In addition, in the interference measurement method shown in fig. 4, in order to make the measurement result more accurate, the relay node may also send the reference signal to the base station on the same time-frequency resource while sending the reference signal to the user equipment each time, and in order to facilitate the distinction, the reference signal sent by the relay node to the base station is referred to as a "second reference signal" in the embodiment of the present application. When the relay node sends the reference signal to the user equipment and the base station on the same time-frequency resource, data transmission exists in the access link and the return link simultaneously, so that the measurement result under the condition is more accurate. In particular, in the above procedure, the second reference signal transmitted by the relay node to the base station may be a ZP RS. That is to say, the relay node sends the reference signal for interference measurement to the user equipment and sends the ZP RS to the base station on the same time-frequency resource, and at this time, since both the access link and the backhaul link occupy the time-frequency resource, the reference signal transmission on the time-frequency resource is not interfered by other signals, and the base station measures the reference signal on the time-frequency resource, so that the measurement result is more accurate.

In the interference measurement method shown in fig. 4, the relay node sends the second configuration information to the base station, where the second configuration information is configuration information of N reference signals sent by the relay node to the user equipment, that is, the relay node may send the N reference signals to the user equipment according to the second configuration information, and the base station may also perform interference measurement on the N reference signals sent by the relay node to the user equipment based on the second configuration information, so that the base station may know interference of a link (i.e., an access link) between the relay node and the user equipment on a link (i.e., a backhaul link) between the base station and the relay node.

Based on the above description of the second embodiment, the embodiment of the present application further provides an interference measurement method, which can be regarded as a specific example of the method shown in fig. 4, and the method shown in fig. 4 can be referred to each other. Referring to fig. 5, the method includes the steps of:

s501, the relay node sends a first message to the base station, and the first message is used for indicating the used time-frequency resource when the relay node sends the reference signal to the user equipment.

The time-frequency resource used when the relay node sends the reference signal to the user equipment may be regarded as a specific example of the second configuration information in the method shown in fig. 4.

As described above, the second configuration information is configuration information of N reference signals sent by the relay node to the user equipment. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals. Then, in the method shown in fig. 5, the time-frequency resources used when the relay node transmits the reference signal to the user equipment may be regarded as the transmission times of the N reference signals and the carrier frequencies of the N reference signals.

S502: and the relay node transmits a reference signal to the user equipment by adopting one shaped beam of the N shaped beams on the time frequency resource.

In addition, in S502, the relay node may further send N ZP RSs to the base station on the time-frequency resource. Wherein, ZP RS is a specific example of the second reference signal in the method shown in fig. 4. Because the power of the ZP RS is zero, the relay node does not actually send a reference signal to the base station, but only occupies the time-frequency resource between the base station and the relay node. The benefits of this are: the relay node sends N reference signals for interference measurement to the user equipment on the same time-frequency resource and sends N ZP RSs to the base station, at the moment, the reference signals sent on the time-frequency resource are not interfered by other signals, and the base station can measure the reference signals on the time-frequency resource, so that the interference of an access link to a return link is accurately determined.

S503: and the base station measures the interference of the access link to the return link under the shaped beam.

Executing S502-S503N times: that is, the relay node sends the parameter signal to the user equipment by using different shaped beams each time S502 is executed, and the base station measures the interference of the access link under each shaped beam to the backhaul link each time S503 is executed. Then, by performing S502-S503N times, the base station can determine the interference of the access link to the backhaul link under N shaped beams.

S504: the base station sends a notification message to the relay node to notify the relay node of the set of shaped beams that can be used when sending signals to the user equipment.

In S504, the shaped beam included in the set of shaped beams that the relay node can adopt when sending a signal to the user equipment is at least one of the N shaped beams.

In S504, the set of shaped beams indicated by the base station to the relay node through the notification message may be regarded as a specific example of the third configuration information in the method shown in fig. 4. In the method shown in fig. 4, the third configuration information is the configuration information of at least one reference signal of the N reference signals screened by the base station according to the measurement result, and in the method shown in fig. 5, the shaped beam set is at least one shaped beam of the N shaped beams screened by the base station; since N shaped beams and N reference signals are in one-to-one correspondence in the method shown in fig. 5, the base station instructs the relay node to transmit a signal to the user equipment by using at least one of the N shaped beams through the notification message, that is, the method is equivalent to the method shown in fig. 4 in which the base station transmits configuration information (that is, third configuration information) of at least one of the N reference signals to the relay node.

In S504, the notification message sent by the base station to the relay node may be higher layer signaling or DCI. Wherein, the higher layer signaling includes but is not limited to: RRC messages, MAC CEs, broadcast messages, system messages, etc.

In the method shown in fig. 5, the shaped beams used for signal transmission between the relay node and the base station are different, and the shaped beams included in the set of shaped beams transmitted by the base station to the relay node in S504 may be the same or different. For example, when the relay node transmits the first message to the base station by using the shaped beam a in S501, the set of shaped beams transmitted by the base station to the relay node in S504 includes a shaped beam 1, a shaped beam 2, and a shaped beam 3; then, when the relay node transmits the first message to the base station using the shaped beam C in S501, the shaped beams included in the shaped beam set transmitted to the relay node by the base station in S504 may be the shaped beam 1, the shaped beam 2, and the shaped beam 3, or the shaped beam 4, the shaped beam 5, and the shaped beam 6.

By the method shown in fig. 5, the base station may configure a set of shaped beams used when the relay node sends a signal to the user equipment, so as to reduce interference of the access link to the backhaul link.

EXAMPLE III

Referring to fig. 6, a method for interference measurement according to an embodiment of the present application is provided. The method comprises the following steps:

s601: the relay node sends the measurement result to the base station; accordingly, the base station receives the measurement result transmitted by the relay node.

The measurement result is the measurement result of at least one reference signal in N reference signals sent to the relay node by the user equipment, and N is more than or equal to 1.

In the interference measurement method shown in fig. 6, the base station may be the aforementioned first device, the relay node may be the aforementioned second device, and the user equipment may be the aforementioned third device. Of course, the first device may also be another relay node in the relay system except for the second device, and the third device may also be another relay node in the relay system except for the second device, which is not limited in this embodiment of the present application.

In S601, when the relay node sends the measurement result to the base station, different reporting methods may be adopted: the relay nodes can report the measurement results of the at least one reference signal one by one, or the relay nodes can report the measurement results of the at least one reference signal uniformly; in addition, the relay node may report the measurement result of the at least one reference signal and also report the ranking condition of the measurement result of the at least one reference signal.

Specifically, in S601, the measurement result of the at least one reference signal may include at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal. That is to say, when the user equipment sends the reference signal to the relay node, the relay node may measure one or more of parameters such as RSRP, CQI, SIR, or SINR of the reference signal, and then determine, according to the measurement result, interference of an access link where the reference signal is located on a backhaul link; after the relay node completes the measurement of the N reference signals, the measurement results of the N reference signals can be determined. Then, in S601, two situations are included when the relay node reports the measurement result of at least one reference signal of the N reference signals to the base station: in the first case, the relay node screens out at least one reference signal according to the measurement results of the N reference signals, and reports the measurement result of the at least one reference signal to the base station, where the at least one reference signal screened out by the relay node may be a reference signal correspondingly sent by the user equipment when the interference of the access link to the backhaul link is small; in the second case, the relay node does not perform the screening action and directly reports the measurement results of the N reference signals to the base station.

It should be noted that the measurement result of the at least one reference signal may include not only the parameters of the at least one reference signal, such as RSRP, CQI, SIR, and SINR, but also the identification and configuration information of the at least one reference signal, because: if the relay node only sends one or more of the parameters such as RSRP, CQI, SIR, SINR and the like of the at least one reference signal to the base station, it is difficult for the base station to recognize which reference signals of the N reference signals sent by the user equipment to the relay node are the at least one reference signal. Accordingly, the relay node may send the identification and configuration information of the at least one reference signal in the measurement result, thereby being used for the base station to identify the at least one reference signal. Wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

Furthermore, before the relay node transmits the measurement result of the at least one reference signal to the base station, the base station may transmit resource configuration information to the relay node, the resource configuration information indicating resources used when the relay node transmits the measurement result of the at least one reference signal. Then, after receiving the resource configuration information, the relay node may send the measurement result to the base station on the resource indicated by the resource configuration information.

Optionally, before the relay node sends the measurement result to the base station, the base station may send first configuration information to the relay node, where the first configuration information is configuration information of the N reference signals. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference indices of N reference signals.

It should be noted that the base station may actively send the first configuration information to the relay node, or may send the first configuration information to the relay node based on a request of the relay node, which is not limited in this embodiment of the application. Furthermore, since the user equipment may transmit based on different numerologies when transmitting the reference signal to the relay node, the first configuration information transmitted by the base station to the relay node may also indicate which numerology the user equipment transmits based on when transmitting the reference signal to the relay node.

After the base station transmits the first configuration information to the relay node, the relay node may transmit the first configuration information to the user equipment, and then the user equipment may perform transmission based on the first configuration information when transmitting the N reference signals to the relay node. When the user equipment sends the reference signal to the relay node, the relay node may also measure the N reference signals according to the first configuration information.

Specifically, N reference signals sent by the user equipment to the relay node may be sent by using different shaped beams. For example, the user equipment may respectively transmit N reference signals to the relay node using N shaped beams, and at this time, the first configuration information may be used to indicate which shaped beam the user equipment uses when transmitting the reference signal. Then, the relay node may measure, according to the first configuration information, interference of a link between the relay node and the user equipment (i.e., an access link) under the N shaped beams on a link between the base station and the relay node (i.e., a backhaul link).

In addition, in the method shown in fig. 6, after receiving the measurement result of the at least one reference signal sent by the relay node, the base station may further screen the at least one reference signal according to the measurement result, and send second configuration information to the relay node after the screening, where the second configuration information is configuration information of all or part of the at least one reference signal. Wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; the carrier frequency of all or part of the reference signal; the sequence of all or part of the reference signals is the subcarrier spacing of all or part of the reference signals; port information of all or part of the reference signals; reference signal indices of all or part of the reference signals.

All or part of the reference signals screened by the base station can be the reference signals correspondingly sent by the user equipment when the interference of the access link to the return link is small. Particularly, when the user equipment respectively adopts N shaped beams to send N reference signals to the relay node, at least one reference signal screened out by the relay node corresponds to at least one shaped beam one to one. Assuming that the number of all or part of the reference signals screened out by the base station is M, wherein M is more than or equal to 1, M shaped beams are in one-to-one correspondence with the M reference signals. That is to say, the second configuration information sent by the base station to the relay node indicates that the interference of the access link to the backhaul link is small when the user equipment sends M reference signals to the relay node by using the M shaped beams. Then, the relay node may notify the user equipment after receiving the second configuration information: when signals are sent to the relay node in the subsequent process, the M shaped beams can be adopted for sending, so that the interference of an access link to a return link is reduced.

Optionally, the second configuration information sent by the base station to the relay node may also indicate a measurement result ordering condition of all or part of the reference signals. For example, the measurement result of the at least one reference signal sent by the relay node to the base station in S601 is RSRP of the at least one reference signal, and then after all or part of the reference signals are screened from the at least one reference signal, when the base station sends the second configuration information to the relay node, the base station may further indicate, in the second configuration information, an ordering condition of RSRP of all or part of the reference signals from high to low or from low to high.

In addition, in the interference measurement method shown in fig. 6, in order to make the measurement result more accurate, the base station may also send the reference signal to the relay node on the same time-frequency resource while the user equipment sends the reference signal to the relay node each time, and for convenience of distinguishing, in the third embodiment, the reference signal sent by the base station to the relay node is referred to as a "second reference signal". When the user equipment and the base station send the reference signals to the relay node on the same time-frequency resource, data transmission exists in the access link and the return link simultaneously, so that the measurement results of the relay node on the N reference signals are more accurate. In particular, in the above procedure, the second reference signal transmitted by the base station to the relay node may be a ZP RS. That is to say, the relay node receives the reference signal for interference measurement sent by the user equipment and the ZP RS sent by the base station on the same time-frequency resource, and at this time, because both the access link and the backhaul link occupy the time-frequency resource, the transmission of the reference signal on the time-frequency resource is not interfered by other signals, and the relay node can measure the reference signal on the time-frequency resource, so that the measurement result is more accurate.

In the interference measurement method shown in fig. 6, a relay node sends a measurement result of at least one reference signal to a base station, where the at least one reference signal is at least one reference signal of N reference signals sent by a user equipment to the relay node. The base station may screen all or part of the reference signals from the at least one reference signal according to the measurement result of the at least one reference signal, and send configuration information of all or part of the reference signals to the relay node. All or part of the reference signals screened by the base station can be the reference signals correspondingly sent by the user equipment when the interference of the access link to the return link is small. After the relay node sends the configuration information of all or part of the reference signals to the user equipment, the user equipment can send the configuration information based on all or part of the reference signals when sending signals to the relay node in the subsequent process, and therefore interference of an access link to a return link is reduced.

Based on the above description of the third embodiment, the embodiment of the present application further provides an interference measurement method, which can be regarded as a specific example of the method shown in fig. 6, and the method shown in fig. 6 can be referred to each other. Referring to fig. 7, the method includes the steps of:

s701: the user equipment sends a request message to the relay node to request the base station to configure the time-frequency resource used when the user equipment sends the reference signal to the relay node.

The time-frequency resource used when the user equipment sends the reference signal to the relay node may be regarded as a specific example of the first configuration information in the method shown in fig. 6.

As described above, the first configuration information is configuration information of N reference signals sent by the user equipment to the relay node. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals. Then, in the method shown in fig. 7, the time-frequency resources used when the user equipment transmits the reference signal to the relay node may be regarded as the transmission times of the N reference signals and the carrier frequencies of the N reference signals.

S702: and the relay node forwards the request message sent by the user equipment to the base station.

S703: and the base station sends a response message to the relay node so as to configure the time-frequency resource used when the user equipment sends the reference signal to the relay node.

In addition, in S703, the base station may further configure itself to send N ZP RSs to the relay node on the time-frequency resource. Wherein, ZP RS is a specific example of the second reference signal in the method shown in fig. 6. Because the power of the ZP RS is zero, the base station does not actually send the reference signal to the relay node, but only occupies the time-frequency resource between the base station and the relay node. The benefits of this are: the relay node receives N reference signals for interference measurement from user equipment and N ZP RSs from a base station on the same time-frequency resource, at the moment, the reference signals sent on the time-frequency resource are not interfered by other signals, the relay node measures the reference signals on the time-frequency resource, and the measurement result is more accurate.

In S703, the response message sent by the base station to the relay node may be higher layer signaling or DCI. Wherein, the higher layer signaling includes but is not limited to: RRC messages, MAC CEs, broadcast messages, system messages, etc.

S704: and the user equipment transmits a reference signal to the relay node by adopting one shaped beam of the N shaped beams on the time frequency resource.

S705: and the relay node measures the interference of the access link to the return link under the shaped beam.

Specifically, the relay node may measure parameters such as RSRP, CQI, SIR, and SIN of the reference signal on the time-frequency resource occupied by the ZP RS, thereby determining interference of the access link under the shaped beam to the backhaul link.

S704 to S705 are executed N times: that is, the user equipment sends the parameter signal to the relay node by using different shaped beams each time S704 is executed, and the relay node measures the interference of the access link under each shaped beam to the backhaul link each time S705 is executed. Then, by performing S704-S705N times, the relay node can determine the interference of the access link to the backhaul link under N shaped beams.

S706: and the relay node reports the measurement result to the base station.

The measurement result reported by the relay node to the base station is the measurement result of at least one reference signal in the N reference signals. Two cases are included here: in the first case, the relay node screens out at least one reference signal according to the measurement results of the N reference signals, and reports the measurement result of the at least one reference signal to the base station, where the at least one reference signal screened out by the relay node may be a reference signal correspondingly sent by the user equipment when the interference of the access link to the backhaul link is small; in the second case, the relay node does not perform the screening action and directly reports the measurement results of the N reference signals to the base station.

S707: the base station sends a notification message to the relay node to notify the user equipment of the set of shaped beams that can be used when sending signals to the relay node.

The set of shaped beams indicated by the base station through the notification message may be a single shaped beam or a set of shaped beams.

In S707, after receiving the measurement result of the at least one reference signal reported by the relay node, the base station screens all or part of the reference signals from the at least one reference signal, where all or part of the reference signals screened by the base station may be reference signals correspondingly sent by the user equipment when the access link has small interference to the backhaul link.

Because the user equipment respectively adopts N shaped beams to send N reference signals to the relay node, the N reference signals are in one-to-one correspondence with the N shaped beams, and at least one reference signal is in one-to-one correspondence with at least one shaped beam, and by the same reason, if the number of all or part of the reference signals screened out by the base station is M, and M is more than or equal to 1, M shaped beams are in one-to-one correspondence with the M reference signals. That is, the set of shaped beams indicated in the notification message by the base station includes M shaped beams corresponding to M reference signals one to one.

Obviously, the relay node may forward the notification message to the user equipment after receiving the notification message, and the user equipment may transmit the notification message by using the shaped beam in the shaped beam set when subsequently transmitting a signal to the relay node, so as to reduce interference of the access link to the backhaul link.

In S707, the set of shaped beams indicated by the base station to the relay node through the notification message may be regarded as a specific example of the second configuration information in the method shown in fig. 6. In the method shown in fig. 6, the second configuration information is configuration information of all or part of the at least one reference signal, and in the method shown in fig. 7, the shaped beam set is all or part of at least one shaped beam screened by the base station; since N shaped beams and N reference signals are in one-to-one correspondence in the method shown in fig. 7, the base station instructs the user equipment to transmit signals using all or part of the at least one shaped beam through the notification message, that is, the method is equivalent to the method shown in fig. 6 in which the base station transmits configuration information (i.e., second configuration information) of all or part of the at least one reference signal to the relay node.

In S707, the notification message sent by the base station to the relay node may be higher layer signaling or DCI. Wherein, the higher layer signaling includes but is not limited to: RRC messages, MAC CEs, broadcast messages, system messages, etc.

In the method shown in fig. 7, the shaped beams used for signal transmission between the relay node and the base station are different, and the shaped beams included in the set of shaped beams transmitted by the base station to the relay node in S707 may be the same or different. For example, when the relay node transmits a request message to the base station using the shaped beam a in S702 and transmits a response message to the relay node using the shaped beam B in S703, the set of shaped beams transmitted to the relay node by the base station in S707 includes a shaped beam 1, a shaped beam 2, and a shaped beam 3; then, when the relay node transmits the request message to the base station using the shaped beam C in S702 and the base station transmits the response message to the relay node using the shaped beam D in S703, the shaped beams included in the shaped beam set transmitted to the relay node by the base station in S707 may be the shaped beam 1, the shaped beam 2, and the shaped beam 3, or may be the shaped beam 4, the shaped beam 5, and the shaped beam 6.

Through the method shown in fig. 7, the base station may configure a shaped beam set used when the user equipment sends a signal to the relay node, so as to reduce interference of the access link to the backhaul link.

Based on the above embodiments, the present application also provides a first device, which may be used to perform operations performed by a base station in any one of the interference measurement methods shown in fig. 2 to 5. Referring to fig. 8, the first device 800 includes a transmitting unit 801 and a receiving unit 802.

The sending unit 801 is configured to send first configuration information to the second device, or the receiving unit 802 is configured to receive second configuration information sent by the second device, where the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to the third device, the second device is a relay node of the first device 800 and the third device, and N is greater than or equal to 1. The configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

Optionally, the first device 800 further includes a processing unit 803, and the processing unit 803 is configured to measure the N reference signals according to the first configuration information or the second configuration information.

Optionally, the sending unit 801 is further configured to: sending third configuration information to the second device, wherein the third configuration information is configuration information of at least one reference signal in the N reference signals; wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

Optionally, the sending unit 801 is further configured to: transmitting a measurement of at least one of the N reference signals to the second device.

Optionally, the measurement result of the at least one reference signal comprises at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal.

It should be noted that the first device 800 may be configured to perform operations performed by the base station in any one of the interference measurement methods shown in fig. 2 to fig. 5, and for implementations not described in detail in the first device 800, reference may be made to relevant descriptions in any one of the interference measurement methods shown in fig. 2 to fig. 5.

Based on the above embodiment, the embodiment of the application further provides a first device. The first device may be configured to perform operations performed by the base station in any one of the interference measurement methods shown in fig. 2 to 5, and may be the same device as the first device 800 shown in fig. 8.

Referring to fig. 9, a first device 900 includes at least one processor 901, memory 902, and a communication interface 903; the at least one processor 901, the memory 902 and the communication interface 903 are all connected by a bus 904;

the memory 902 is used for storing computer execution instructions;

the at least one processor 901 is configured to execute the computer-executable instructions stored in the memory 902, so that the first device 900 performs the interference measurement method provided in the foregoing embodiment by performing data interaction with other devices (e.g., a relay node and a user equipment) in a communication system through the communication interface 903, or so that the first device 900 performs part or all of functions of the communication system by performing data interaction with other devices (e.g., a relay node and a user equipment) in a communication system through the communication interface 903.

At least one processor 901, which may include processors 901 of different types, or which may include processors 901 of the same type; the processor 901 may be any of the following: a Central Processing Unit (CPU), an ARM processor, a Field Programmable Gate Array (FPGA), a special processor, and other devices with computing processing capability. In an alternative embodiment, the at least one processor 901 may also be integrated as a many-core processor.

The memory 902 may be any one or any combination of the following: a Random Access Memory (RAM), a Read Only Memory (ROM), a non-volatile memory (NVM), a Solid State Drive (SSD), a mechanical hard disk, a magnetic disk array, and other storage media.

The communication interface 903 is used for data interaction between the first device 900 and other devices (e.g., a relay node and a user equipment in a communication system). The communication interface 903 may be any one or any combination of the following: a network interface (e.g., an ethernet interface), a wireless network card, etc. having a network access function.

The bus 904 may include an address bus, a data bus, a control bus, etc., which is represented by a thick line in fig. 9 for ease of illustration. Bus 904 may be any one or any combination of the following: an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, and other devices for wired data transmission.

Based on the above embodiments, the present application also provides a second device, where the second device may be configured to perform operations performed by the relay node in any one of the interference measurement methods shown in fig. 2 to 5. Referring to fig. 10, the second apparatus 1000 includes a receiving unit 1001 and a transmitting unit 1002.

The receiving unit 1001 is configured to receive first configuration information sent by a first device, or the sending unit 1002 is configured to send second configuration information to the first device; the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device 1000 to the third device, the second device 1000 is a relay node of the first device and the third device, and N is greater than or equal to 1; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

Optionally, the sending unit 1002 is further configured to: and sending N reference signals to the third equipment according to the first configuration information or the second configuration information.

Optionally, the receiving unit 1001 is further configured to: receiving third configuration information sent by the first device, wherein the third configuration information is configuration information of at least one reference signal in the N reference signals; wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of at least one reference signal; a carrier frequency of at least one reference signal; a sequence of at least one reference signal; a subcarrier spacing of at least one reference signal; port information of at least one reference signal; a reference signal index of at least one reference signal.

Optionally, the receiving unit 1001 is further configured to: and receiving a measurement result of at least one reference signal in the N reference signals transmitted by the first equipment.

It should be noted that the second device 1000 may be configured to perform operations performed by the relay node in any one of the interference measurement methods shown in fig. 2 to 5, and for implementation manners not described in detail in the second device 1000, reference may be made to relevant descriptions in any one of the interference measurement methods shown in fig. 2 to 5.

Based on the above embodiment, the embodiment of the application further provides a second device. The second device may be configured to perform operations performed by the relay node in any one of the interference measurement methods shown in fig. 2 to 5, and may be the same device as the second device 1000 shown in fig. 10.

Referring to fig. 11, the second device 1100 includes at least one processor 1101, a memory 1102, and a communication interface 1103; the at least one processor 1101, the memory 1102 and the communication interface 1103 are all connected by a bus 1104;

the memory 1102 is used for storing computer execution instructions;

the at least one processor 1101 is configured to execute the computer-implemented instructions stored in the memory 1102, so that the second device 1100 performs the interference measurement method provided in the foregoing embodiment by performing data interaction with other devices (such as a base station, a user equipment, or other relay nodes) in the communication system through the communication interface 1103, or so that the second device 1100 performs part or all of the functions of the communication system by performing data interaction with other devices (such as a base station, a user equipment, or other relay nodes) in the communication system through the communication interface 1103.

At least one processor 1101, which may include different types of processors 1101, or which may include the same type of processors 1101; the processor 1101 may be any of the following: the system comprises a CPU, an ARM processor, an FPGA, a special processor and other devices with computing processing capacity. In an alternative embodiment, the at least one processor 1101 may also be integrated as a many-core processor.

Memory 1102 may be any one or any combination of the following: storage media such as RAM, ROM, NVM, SSD, mechanical hard disk, magnetic disk array, and the like.

The communication interface 1103 is used for data interaction between the second device 1100 and other devices (e.g. a base station, a user equipment or other relay nodes in a communication system). The communication interface 1103 may be any one or any combination of the following: a network interface (e.g., an ethernet interface), a wireless network card, etc. having a network access function.

The bus 1104 may include an address bus, a data bus, a control bus, etc., which is represented by a thick line in FIG. 11 for ease of illustration. Bus 1104 may be any one or any combination of the following: ISA bus, PCI bus, EISA bus and other wired data transmission devices.

Based on the above embodiments, the present application also provides a first device, which may be used to perform the operations performed by the base station in the interference measurement method shown in fig. 6 or fig. 7. Referring to fig. 12, the first apparatus 1200 includes a receiving unit 1201.

A receiving unit 1201, configured to receive a measurement result sent by a second device, where the measurement result is a measurement result of at least one reference signal of N reference signals sent by a third device to the second device, the second device is a relay node of the first device 1200 and the third device, and N is greater than or equal to 1.

Optionally, the first device 1200 further includes a first sending unit 1202, where the first sending unit 1202 is configured to send first configuration information to the second device before the receiving unit 1201 receives the measurement result sent by the second device, where the first configuration information is configuration information of the N reference signals; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference indices of N reference signals.

Optionally, the first device 1200 further includes a second sending unit 1203, where the second sending unit 1203 is configured to send, before the receiving unit 1201 receives the measurement result sent by the second device, resource configuration information to the second device, where the resource configuration information is used to indicate a resource used when the second device sends the measurement result.

Optionally, the first device 1200 further includes a third sending unit 1204, where the third sending unit 1204 is configured to send second configuration information to the second device, where the second configuration information is configuration information of all or part of the at least one reference signal; wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; the carrier frequency of all or part of the reference signal; the sequence of all or part of the reference signals is the subcarrier spacing of all or part of the reference signals; port information of all or part of the reference signals; reference signal indices of all or part of the reference signals.

It should be noted that the first sending unit 1202, the second sending unit 1203, and the third sending unit 1204 may be the same unit in the first device 1200.

Optionally, the measurement result information comprises at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; SINR of at least one reference signal.

It should be noted that the first apparatus 1200 may be configured to perform operations performed by the base station in the interference measurement method shown in fig. 6 or fig. 7, and for implementations not described in detail in the first apparatus 1200, reference may be made to relevant descriptions in the interference measurement method shown in fig. 6 or fig. 7.

Based on the above embodiment, the embodiment of the application further provides a first device. The first device may be used to perform the operations performed by the base station in any one of the interference measurement methods shown in fig. 2 to 5, and may be the same device as the first device 1200 shown in fig. 12.

Referring to fig. 13, the first device 1300 includes at least one processor 1301, a memory 1302, and a communication interface 1303; the at least one processor 1301, the memory 1302 and the communication interface 1303 are all connected by a bus 1304;

the memory 1302 is used for storing computer execution instructions;

the at least one processor 1301 is configured to execute the computer-implemented instructions stored in the memory 1302, so that the first device 1300 performs the interference measurement method provided in the foregoing embodiment by performing data interaction with other devices (such as a relay node and a user equipment) in a communication system through the communication interface 1303, or the first device 1300 performs part or all of functions of the communication system by performing data interaction with other devices (such as a relay node and a user equipment) in a communication system through the communication interface 1303.

At least one processor 1301, which may include different types of processors 1301, or the same type of processors 1301; processor 1301 can be any of the following: the system comprises a CPU, an ARM processor, an FPGA, a special processor and other devices with computing processing capacity. In an alternative embodiment, the at least one processor 1301 may also be integrated as a many-core processor.

Memory 1302 may be any one or any combination of the following: storage media such as RAM, ROM, NVM, SSD, mechanical hard disk, magnetic disk array, and the like.

The communication interface 1303 is used for the first device 1300 to perform data interaction with other devices (e.g., a relay node and a user equipment in a communication system). Communication interface 1303 may be any one or any combination of the following: a network interface (e.g., an ethernet interface), a wireless network card, etc. having a network access function.

The bus 1304 may include an address bus, a data bus, a control bus, etc., which is represented by a thick line in FIG. 13 for ease of illustration. Bus 1304 may be any one or any combination of the following: ISA bus, PCI bus, EISA bus and other wired data transmission devices.

Based on the above embodiments, the present application also provides a second device, where the second device may be configured to perform an operation performed by the relay node in the interference measurement method shown in fig. 6 or fig. 7. Referring to fig. 14, the second device 1400 includes a transmission unit 1401.

The sending unit 1401 is configured to send a measurement result to the first device, where the measurement result is a measurement result of at least one reference signal of N reference signals sent by the third device to the second device 1400, the second device 1400 is a relay node of the first device and the third device, and N is greater than or equal to 1.

Optionally, the second device 1400 further includes a first receiving unit 1402, where the first receiving unit 1402 is configured to receive first configuration information sent by the first device before the sending unit 1401 sends the measurement result to the first device, where the first configuration information is configuration information of the N reference signals; the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of N reference signals; a sequence of N reference signals; subcarrier spacing for N reference signals; port information of the N reference signals; reference signal indices of N reference signals.

Optionally, the second device 1400 further includes a second receiving unit 1403, where the second receiving unit 1403 is configured to receive resource configuration information sent by the first device before the sending unit 1401 sends the measurement result to the first device, and the resource configuration information is used to indicate a resource used when the second device 1400 sends the measurement result information.

Optionally, the second device 1400 further includes a third receiving unit 1404, where the third receiving unit 1404 is configured to receive second configuration information sent by the first device, and the second configuration information is configuration information of all or part of the at least one reference signal; wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; the carrier frequency of all or part of the reference signal; a sequence of all or part of a reference signal; subcarrier spacing for all or part of the reference signals; port information of all or part of the reference signals; reference signal indices of all or part of the reference signals.

Optionally, the measurement results comprise at least one of: identification or configuration information of at least one reference signal; RSRP of at least one reference signal; CQI of at least one reference signal; SIR of at least one reference signal; a ratio SINR of at least one reference signal.

It should be noted that the first receiving unit 1402, the second receiving unit 1403, and the third receiving unit 1404 may be the same unit in the second device 1400.

It should be noted that the second device 1400 may be configured to perform operations performed by the relay node in the interference measurement method shown in fig. 6 or fig. 7, and for implementations not described in detail in the second device 1400, reference may be made to relevant descriptions in the interference measurement method shown in fig. 6 or fig. 7.

Based on the above embodiment, the embodiment of the application further provides a second device. The second device may be configured to perform the operations performed by the relay node in any one of the interference measurement methods shown in fig. 6 or fig. 7, and may be the same device as the second device 1400 shown in fig. 14.

Referring to fig. 15, the second device 1500 includes at least one processor 1501, memory 1502, and a communication interface 1503; the at least one processor 1501, the memory 1502, and the communication interface 1503 are all connected by a bus 1504;

the memory 1502 for storing computer-executable instructions;

the at least one processor 1501 is configured to execute the computer-executable instructions stored in the memory 1502, so that the second device 1500 performs the interference measurement method provided in the foregoing embodiment by performing data interaction with other devices (such as a base station, a user equipment, or other relay nodes) in the communication system through the communication interface 1503, or so that the second device 1500 performs part or all of the functions of the communication system by performing data interaction with other devices (such as a base station, a user equipment, or other relay nodes) in the communication system through the communication interface 1503.

At least one processor 1501, which may include different types of processors 1501, or which may include the same type of processors 1501; processor 1501 may be any of the following: the system comprises a CPU, an ARM processor, an FPGA, a special processor and other devices with computing processing capacity. In an alternative embodiment, the at least one processor 1501 may also be integrated as a many-core processor.

The memory 1502 may be any one or any combination of the following: storage media such as RAM, ROM, NVM, SSD, mechanical hard disk, magnetic disk array, and the like.

The communication interface 1503 is used for data interaction between the second device 1500 and other devices (e.g., base stations, user equipment, or other relay nodes in a communication system). Communication interface 1503 may be any one or any combination of the following: a network interface (e.g., an ethernet interface), a wireless network card, etc. having a network access function.

The bus 1504 may include an address bus, a data bus, a control bus, and the like, which is illustrated in FIG. 15 by a thick line for ease of illustration. The bus 1504 may be any one or any combination of the following: ISA bus, PCI bus, EISA bus and other wired data transmission devices.

In summary, the embodiments of the present application provide an interference measurement method and apparatus, and with the adoption of the scheme provided by the embodiments of the present application, interference of an access link to a backhaul link in a relay system can be measured, so that interference between two links is reduced, and communication quality is improved.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

1. An interference measurement method, comprising:

a first device sends first configuration information to a second device, or the first device receives second configuration information sent by the second device, wherein the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to a third device, the second device is a relay node of the first device and the third device, and N is more than or equal to 1;

the first device measures the N reference signals according to the first configuration information or the second configuration information;

wherein the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of the N reference signals; a sequence of the N reference signals; subcarrier spacing of the N reference signals; port information of the N reference signals; a reference signal index for the N reference signals.

2. The method of claim 1, further comprising:

the first device sends third configuration information to the second device, where the third configuration information is configuration information of at least one reference signal in the N reference signals;

wherein the configuration information of the at least one reference signal comprises at least one of the following information: a transmission time of the at least one reference signal; a carrier frequency of the at least one reference signal; a sequence of the at least one reference signal; a subcarrier spacing of the at least one reference signal; port information of the at least one reference signal; a reference signal index of the at least one reference signal.

3. An interference measurement method, comprising:

the method comprises the steps that a second device receives first configuration information sent by a first device, or the second device sends second configuration information to the first device, wherein the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to a third device, the second device is a relay node of the first device and the third device, and N is larger than or equal to 1;

the second device sends the N reference signals to the third device according to the first configuration information or the second configuration information, where the N reference signals are used for the first device to perform measurement according to the first configuration information and the second configuration information;

4. The method of claim 3, further comprising:

the second device receives third configuration information sent by the first device, where the third configuration information is configuration information of at least one reference signal in the N reference signals;

5. An interference measurement method, comprising:

a first device receives a measurement result sent by a second device, wherein the measurement result is the measurement result of at least one reference signal in N reference signals sent to the second device by a third device, the second device is a relay node of the first device and the third device, and N is more than or equal to 1;

before the first device receives the measurement result sent by the second device, the method further includes:

the first device sends first configuration information to the second device, wherein the first configuration information is the configuration information of the N reference signals;

wherein the configuration information of the N reference signals includes at least one of the following information: the transmission times of the N reference signals; carrier frequencies of the N reference signals; a sequence of the N reference signals; subcarrier spacing of the N reference signals; port information of the N reference signals; reference indices of the N reference signals.

6. The method of claim 5, further comprising:

the first device sends second configuration information to the second device, wherein the second configuration information is configuration information of all or part of the at least one reference signal;

wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; a carrier frequency of the all or part of the reference signal; sequence of the all or part of the reference signals the subcarrier spacing of the all or part of the reference signals; port information of the all or part of the reference signals; a reference signal index of the all or part of the reference signals.

7. The method according to claim 5 or 6, wherein the measurement result information comprises at least one of:

identification or configuration information of the at least one reference signal;

an RSRP of the at least one reference signal;

a CQI for the at least one reference signal;

a SIR of the at least one reference signal;

SINR of the at least one reference signal.

8. An interference measurement method, comprising:

the method comprises the steps that a second device sends a measurement result to a first device, wherein the measurement result is the measurement result of at least one reference signal in N reference signals sent to the second device by a third device, the second device is a relay node of the first device and the third device, and N is larger than or equal to 1;

before the second device sends the measurement result to the first device, the method further includes:

the second device receives first configuration information sent by the first device, wherein the first configuration information is configuration information of the N reference signals;

9. The method of claim 8, further comprising:

the second device receives second configuration information sent by the first device, wherein the second configuration information is configuration information of all or part of reference signals in the at least one reference signal;

wherein the configuration information of all or part of the reference signals comprises at least one of the following information: the transmission time of all or part of the reference signals; a carrier frequency of the all or part of the reference signal; a sequence of all or part of the reference signal; the subcarrier spacing of all or part of the reference signals; port information of the all or part of the reference signals; a reference signal index of the all or part of the reference signals.

10. The method of claim 8 or 9, wherein the measurement result comprises at least one of:

an RSRP of the at least one reference signal;

a CQI for the at least one reference signal;

a SIR of the at least one reference signal;

a ratio SINR of the at least one reference signal.

11. A first device, comprising a transmitting unit and a receiving unit;

the sending unit is used for sending the first configuration information to the second equipment, or

The receiving unit is configured to receive second configuration information sent by the second device;

a processing unit, configured to measure N reference signals according to the first configuration information or the second configuration information;

the first configuration information and the second configuration information are configuration information of N reference signals sent by the second equipment to third equipment, the second equipment is a relay node of the first equipment and the third equipment, and N is more than or equal to 1;

12. The first device of claim 11, wherein the sending unit is further configured to:

sending third configuration information to the second device, where the third configuration information is configuration information of at least one reference signal in the N reference signals;

13. A second device, comprising a receiving unit and a transmitting unit; wherein the content of the first and second substances,

the receiving unit is used for receiving first configuration information sent by first equipment; alternatively, the first and second electrodes may be,

the sending unit is configured to send second configuration information to the first device;

the sending unit is further configured to send N reference signals to a third device according to the first configuration information or the second configuration information, where the N reference signals are used for the first device to perform measurement according to the first configuration information and the second configuration information;

the first configuration information and the second configuration information are configuration information of N reference signals sent by the second device to a third device, the second device is a relay node of the first device and the third device, and N is greater than or equal to 1;

14. The second device of claim 13, wherein the receiving unit is further configured to:

receiving third configuration information sent by the first device, where the third configuration information is configuration information of at least one reference signal in the N reference signals;

15. A first device, comprising:

a receiving unit, configured to receive a measurement result sent by a second device, where the measurement result is a measurement result of at least one reference signal in N reference signals sent by a third device to the second device, the second device is a relay node of the first device and the third device, and N is greater than or equal to 1;

a first sending unit, configured to send first configuration information to a second device before the receiving unit receives a measurement result sent by the second device, where the first configuration information is configuration information of the N reference signals;

16. The first device of claim 15, further comprising:

a third sending unit, configured to send second configuration information to the second device, where the second configuration information is configuration information of all or part of the at least one reference signal;

17. The first apparatus according to claim 15 or 16, wherein the measurement result information comprises at least one of:

an RSRP of the at least one reference signal;

a CQI for the at least one reference signal;

a SIR of the at least one reference signal;

SINR of the at least one reference signal.

18. A second apparatus, comprising:

a sending unit, configured to send a measurement result to a first device, where the measurement result is a measurement result of at least one reference signal in N reference signals sent by a third device to the second device, the second device is a relay node of the first device and the third device, and N is greater than or equal to 1;

a first receiving unit, configured to receive first configuration information sent by a first device before the sending unit sends a measurement result to the first device, where the first configuration information is configuration information of the N reference signals;

19. The second device of claim 18, further comprising:

a third receiving unit, configured to receive second configuration information sent by the first device, where the second configuration information is configuration information of all or part of the reference signals in the at least one reference signal;

20. The second apparatus according to claim 18 or 19, wherein the measurement result comprises at least one of:

an RSRP of the at least one reference signal;

a CQI for the at least one reference signal;

a SIR of the at least one reference signal; a ratio SINR of the at least one reference signal.