CN108631891B

CN108631891B - Method and device for measuring link between communication nodes

Info

Publication number: CN108631891B
Application number: CN201710184626.6A
Authority: CN
Inventors: 张楠; 李儒岳; 陈艺戬; 鲁照华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2022-06-17
Anticipated expiration: 2037-03-24
Also published as: CN108631891A

Abstract

The invention provides a method and a device for measuring links between communication nodes, wherein the method comprises the following steps: the first communication node sends a first signaling to the second communication node; the first signaling carries description information for describing a measurement reference signal. The invention solves the technical problem of overlarge overhead during link measurement in the related technology.

Description

Method and device for measuring link between communication nodes

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for measuring a link between communication nodes.

Background

With the start of the fifth generation mobile communication, the application of high frequency band and large bandwidth and large scale antenna has become the core of the next generation wireless communication system.

High-band communication also faces irrevocable disadvantages due to its own propagation characteristics, with the main aspects being large propagation path loss, greater air absorption (especially oxygen) absorption, and rain attenuation effects. To address these issues, antenna array and rf beamforming based schemes are introduced, which are expected to counter signal transmission loss with high antenna gain to ensure corresponding coverage and communication capacity requirements.

Meanwhile, in order to better utilize the communication mode based on the beam and effectively improve the spectrum efficiency of the current system, the beam training schemes based on the pilot frequency are also proposed one by one. However, separate training for the uplink and downlink necessarily results in a relatively large training overhead. Therefore, how to effectively verify the parameters of the consistency of the current communication characteristics and improve the training efficiency based on the parameters becomes a problem which needs to be solved urgently at present.

In view of the above problems in the related art, no effective solution has been found at present.

Disclosure of Invention

The embodiment of the invention provides a method and a device for measuring links between communication nodes, which are used for at least solving the technical problem of overlarge overhead during link measurement in the related technology.

According to an embodiment of the present invention, there is provided a method for measuring a link between communication nodes, including: a first communication node instructs a second communication node to complete measurement of a link between the first communication node and the second communication node through first signaling; the first signaling carries description information for describing a measurement reference signal.

Optionally, the sending manner of the first signaling includes one of: the first communication node actively transmits; and the first communication node sends the measurement request after receiving the measurement request sent by the second communication node.

Optionally, the first signaling is at least one of: RRC signaling of a radio resource control layer; media Access Control (MAC) signaling; single level physical layer signaling; multi-level physical layer signaling.

Optionally, the content of the first signaling includes at least one of: measuring a reference signal; measuring a transmission resource of a reference signal; measuring a transmission order of reference signals; measuring a receiving mode of a reference signal; measuring the content; and feeding back the configuration of the measurement result.

Optionally, the measurement reference signal includes at least one of: a synchronization signal SS; a channel state measurement reference signal (CSI-RS); measuring a signal SRS; a downlink demodulation reference signal; and uplink demodulation reference signals.

Optionally, the transmission resource of the sounding reference signal refers to a resource allocated according to at least one of the following manners: pattern, range, validity time, number, wherein the allocated resources comprise at least one of: time domain resources, frequency domain resources, spatial domain resources, beam resources.

Optionally, the transmission order of the measurement reference signals includes at least one of: mapping sequence of reference signals to time domain resources; mapping sequence of reference signals to frequency domain resources; mapping sequence from reference signal to space domain resource; mapping sequence of reference signals to beam resources; a transmission timing of the time domain resource, or a transmission timing of the frequency domain resource, or a transmission timing of the space domain resource, or a transmission timing of the beam resource.

Optionally, the configuration of the feedback measurement result includes at least one of: the method comprises the steps of feeding back content, feeding back a format, feeding back used resources, feeding back a mapping sequence of the content to the resources, and feeding back a sending time sequence of the used resources.

Optionally, the feedback content is the same set as the link measurement content or a subset of the link measurement content, and the feedback content includes at least one of: characteristic information of links between nodes; n best receive beams; m optimal transmit beams; l sets of optimal transmit beams; h sets of best receive beams; wherein N, M, L and H are all nonnegative integers.

Optionally, the characteristic information of the inter-node link includes at least one of: communication frequency band, link quality, channel reciprocity, channel statistics, transmit beams, receive beams, time offset, and frequency offset.

Optionally, the link quality includes at least one of: received signal energy, difference in received signal energy, received signal quality, difference in received signal quality, signal-to-noise ratio, signal-to-interference-and-noise ratio.

Optionally, the channel statistical characteristics include at least one of: delay spread, angle spread, doppler spread, angle of arrival, departure angle, channel coefficient matrix, transposition of channel coefficient matrix, channel covariance matrix, transposition of channel covariance matrix, channel interference matrix, transposition of channel interference matrix, eigenvector of the channel matrix, precoding weight obtained according to the channel matrix, channel quality indicator CQI, precoding weight matrix indicator PMI.

According to an embodiment of the present invention, there is provided another method for measuring a link between communication nodes, including: the first communication node acquires a measurement result of link measurement and/or known information, wherein the known information is used for describing parameters of the first communication node and/or the second communication node; and the first communication node indicates the parameter of the consistency of the current communication characteristics of the link between the communication nodes to the second communication node through second signaling based on the measurement result and/or the known information, wherein the parameter of the consistency of the communication characteristics is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

Optionally, the known information comprises at least one of:

a device parameter used by the first communication node in a receive mode;

a device parameter used by the first communication node in a transmit mode;

whether the device parameters used by the first communication node in the transceiving mode are the same or not;

a beam used by the first communication node in a transmit mode;

a beam used by the first communication node in a receive mode;

whether the beams used by the first communication node in the transceiving mode are the same;

a resource used by the first communication node in a transmit mode;

a resource used by the first communication node in a receive mode;

whether the resources used by the first communication node in the transceiving mode are the same;

device parameters used by the second communication node in the receive mode;

device parameters used by the second communication node in the sending mode;

whether the device parameters used by the second communication node in the transceiving mode are the same or not;

a beam used by the second communication node in the transmit mode;

a beam used by the second communication node in a receive mode;

whether the beams used by the second communication node in the transceiving mode are the same or not;

a resource used by the second communication node in the transmit mode;

a resource used by the second communication node in the receive mode;

whether the resources used by the second communication node in the transceiving mode are the same or not;

a characteristic of a link between the first communication node and the second communication node.

Optionally, the second signaling is at least one of: radio resource control, RRC, signaling; media Access Control (MAC) signaling; single level physical layer signaling; multi-level physical layer signaling.

Optionally, the content of the second signaling comprises at least one of:

the identification is used for representing whether the transceiving characteristics of the first communication node are consistent;

representing the consistency grade identification of the transceiving characteristics of the first communication node;

the identification represents whether the transceiving characteristics of the second communication node are consistent;

representing the consistency grade identification of the receiving and sending characteristics of the second communication node;

the identifier is used for representing whether the link from the first communication node to the second communication node is consistent with the link from the second communication node to the first communication node in characteristics or not;

the consistency grade mark of the characteristics of the link from the first communication node to the second communication node and the link from the second communication node to the first communication node is represented;

a quasi-common position between reference signals;

the beam configuration used for the traffic channel.

Optionally, the traffic channel includes at least one of: synchronization channel, broadcast channel, control channel, data channel.

According to an embodiment of the present invention, there is provided a method for measuring a link between communication nodes, including: a first communication node indicates a second communication node to complete measurement of a link between the first communication node and the second communication node through a first signaling, wherein the first signaling carries description information for describing a measurement reference signal; the first communication node receives a measurement reference signal sent by a second communication node according to the first signaling configuration; the first communication node performs measurement and/or feedback for the sounding reference signal.

According to an embodiment of the present invention, there is provided a method for measuring a link between communication nodes, including: the first communication node receives a third signaling sent by the second communication node; and acquiring parameters of the current communication characteristic consistency from the third signaling, wherein the parameters of the communication characteristic consistency are used for describing the communication characteristics of the communication link.

Optionally, the third signaling is at least one of:

radio resource control, RRC, signaling;

media Access Control (MAC) signaling;

single level physical layer signaling;

multi-level physical layer signaling.

Optionally, the content of the third signaling comprises at least one of:

the identification is used for representing whether the transceiving characteristics of the first communication node are consistent or not;

representing the consistency grade identification of the receiving and sending characteristics of the first communication node;

the consistency grade identification of the link from the first communication node to the second communication node and the link from the second communication node to the first communication node is represented;

a quasi-common position between reference signals;

the beam configuration used for the traffic channel.

According to another embodiment of the present invention, there is provided a method for measuring a link between communication nodes, including: a second communication node receives a first signaling sent by a first communication node; the second communication node acquires the configuration for completing the measurement of the link between the nodes; the first signaling carries description information for describing a measurement reference signal.

Optionally, after the second communication node learns the configuration for completing the inter-node link measurement, the method further includes: the second communication node performs measurement and/or feedback for reference signals in accordance with the first signaling.

Optionally, after the second communication node learns the configuration for completing the inter-node link measurement, the method further includes: the second communications node completes transmission of the reference signal in accordance with the first signaling.

According to another embodiment of the present invention, there is provided another method for measuring a link between communication nodes, including: the second communication node receives a second signaling sent by the first communication node; and the second communication node learns the parameter of the current communication characteristic consistency from the second signaling, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

According to another embodiment of the present invention, there is provided a method for measuring a link between communication nodes, including: the second communication node acquires the measurement result of the link measurement and/or known information, wherein the known information is used for describing the parameters of the first communication node and/or the second communication node; and the second communication node indicates the parameter of the current communication characteristic consistency of the link between the communication nodes to the first communication node through third signaling based on the measurement result and/or the known information, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

According to an embodiment of the present invention, there is provided an apparatus for measuring a link between communication nodes, applied to a first communication node, including: an indicating module, configured to indicate a second communication node to complete measurement of a link between the first communication node and the second communication node through a first signaling; the first signaling carries description information for describing a measurement reference signal.

Optionally, the content of the first signaling includes at least one of: measuring a reference signal; measuring a transmission resource of a reference signal; measuring a transmission order of reference signals; measuring a receiving mode of a reference signal; measuring the content; and (4) configuration of feedback measurement results.

According to an embodiment of the present invention, there is provided another apparatus for measuring a link between communication nodes, which is applied to a first communication node, and includes: an obtaining module, configured to obtain a measurement result of a link measurement and/or known information, where the known information is used to describe a parameter of a first communication node and/or a second communication node; and the indicating module is used for indicating the parameter of the consistency of the current communication characteristics of the link between the communication nodes to the second communication node through second signaling based on the measurement result and/or the known information, wherein the parameter of the consistency of the communication characteristics is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

According to an embodiment of the present invention, there is provided another apparatus for measuring a link between communication nodes, which is applied to a first communication node, and includes: an indication module, configured to indicate a second communication node to complete measurement of a link between the first communication node and the second communication node through a first signaling, where the first signaling carries description information for describing a measurement reference signal; a receiving module, configured to receive a measurement reference signal sent by a second communication node according to the first signaling configuration; and the processing module is used for completing measurement and/or feedback of the measurement reference signal.

According to an embodiment of the present invention, there is provided another apparatus for measuring a link between communication nodes, which is applied to a first communication node, and includes: a receiving module, configured to receive a third signaling sent by a second communication node; and a learning module, configured to learn, from the third signaling, a parameter of current communication characteristic consistency, where the parameter of communication characteristic consistency is used to describe a communication characteristic of a communication link.

According to another embodiment of the present invention, there is provided an apparatus for measuring a link between communication nodes, applied to a second communication node, including: a receiving module, configured to receive a first signaling sent by a first communication node; a learning module for learning configuration for completing inter-node link measurement; the first signaling carries description information for describing a measurement reference signal.

According to another embodiment of the present invention, there is provided another apparatus for measuring a link between communication nodes, which is applied to a second communication node, and includes: a receiving module, configured to receive a second signaling sent by a first communication node; and a learning module, configured to learn, from the second signaling, a parameter of current communication characteristic consistency, where the parameter of communication characteristic consistency is used to describe a communication characteristic of a communication link.

According to another embodiment of the present invention, there is provided another apparatus for measuring a link between communication nodes, which is applied to a second communication node, and includes: a sending module, configured to send a third signaling to the first communication node to indicate a parameter of current communication feature consistency; wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the steps of:

instructing a second communication node to complete measurement of a link between the first communication node and the second communication node through first signaling;

the first signaling carries description information for describing a measurement reference signal.

According to the invention, a second communication node is indicated to complete the measurement of the link between the first communication node and the second communication node through a first signaling; the first signaling carries description information for describing a measurement reference signal. The technical problem of overlarge overhead during link measurement in the related technology can be solved, and the effects of improving training efficiency and reducing the overhead of uplink and downlink training are achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a flowchart of a method of measuring a link between communication nodes according to an embodiment of the present invention;

fig. 2 is a flowchart of another method of measuring a link between communication nodes according to an embodiment of the present invention;

fig. 3 is a block diagram of a measurement apparatus for a link between communication nodes according to an embodiment of the present invention;

fig. 4 is a block diagram of another measurement apparatus for a link between communication nodes according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a downlink measurement signal transmission flow according to an embodiment of the present invention;

FIG. 6 is a diagram of an example of reference signal-to-beam mapping according to an embodiment of the present invention;

fig. 7 is a diagram illustrating an uplink measurement signal transmission flow according to an embodiment of the present invention;

fig. 8 is a schematic diagram 1 of a base station/terminal transceiving beam configuration according to an embodiment of the present invention;

fig. 9 is a schematic diagram of communication feature consistency parameter transmission 1 according to an embodiment of the present invention;

fig. 10 is a schematic diagram of uplink and downlink beam coincidence according to an embodiment of the present invention;

fig. 11 is a communication characteristic consistency parameter transmission diagram 2 according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present invention, the interpretation of the terms involved refers to the following definitions:

the measurement may include reception of a measurement signal, transmission of a measurement signal, feedback of a measurement result; the links between the nodes may be: first communication node to second communication node, second communication node to first communication node, or a combination of both.

The device parameters may be: the method comprises the following steps of radio frequency link marking, radio frequency link number, radio frequency link phase noise, power amplification, antenna array element characteristics, antenna array characteristics, antenna subarray, time offset, frequency offset and the like. The device parameters also contain calibration information for the above parameters.

The beam may be a resource (e.g., transmit-side precoding, receive-side precoding, antenna port, antenna weight vector, antenna weight matrix, etc.), and the beam symbol may be replaced with a resource index because the beam may be bound to some time-frequency code resources for transmission. A beam may also be a transmission (transmit/receive) mode; the transmission mode may include spatial multiplexing, frequency domain/time domain diversity, etc.

The receiving beam indication refers to that the transmitting end may indicate by using a quasi co-location (QCL) hypothesis of a current reference signal and an antenna port and a reference signal (or a reference signal) and an antenna port reported by the UE feedback.

The receiving beam refers to a beam of a receiving end which does not need to be indicated, or a beam resource of the receiving end which can be indicated by a quasi-co-location of a reference signal (or a reference signal) and an antenna port of a feedback report of the sending end and the UE through a current reference signal and the antenna port;

the set of beams may be a set of beams having a certain type of characteristics as described above. Such features may be: can be received by the same receive beam or can be transmitted by the same radio frequency channel, etc.

The quasi-co-location relationship of the reference signals refers to a quasi-co-location assumption that resources (such as time domain and frequency domain) and antenna ports are satisfied when the reference signals are received and sent. The different quasi co-location hypotheses correspond to at least the following parameters or a subset of parameters: doppler spread, doppler shift, delay spread, average delay and average gain; and may also include spatial parameter information such as angle of arrival, spatial correlation of received beams, average delay, correlation of time-frequency channel response (including phase information).

The first and second communication nodes may be a base station, a terminal, a transmission node, a communication network element, a relay, etc.

Example 1

In this embodiment, a method for measuring a link between communication nodes is provided, and fig. 1 is a flowchart of a method for measuring a link between communication nodes according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:

step S102, a first communication node sends a first signaling to a second communication node; the first signaling carries description information for describing a measurement reference signal.

Through the steps, the first communication node sends the first signaling to the second communication node; the first signaling carries description information for describing a measurement reference signal. The technical problem of overlarge overhead during link measurement in the related technology can be solved, and the effects of improving training efficiency and reducing the overhead of uplink and downlink training are achieved.

On the first communication node side, the method for measuring a link between communication nodes according to the embodiments of the present invention may also be implemented by following several related schemes:

and step S11, the first communication node indicates the parameter of the consistency of the current communication characteristics of the link between the communication nodes to the second communication node through a second signaling, wherein the parameter of the consistency of the communication characteristics is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

Step S21, the first communication node sends a first signaling to the second communication node, wherein the first signaling carries description information for describing the measurement reference signal;

step S22, the first communication node receives the measurement reference signal sent by the second communication node according to the first signaling configuration;

in step S23, the first communication node completes measurement and/or feedback for the sounding reference signal.

Step S31, the first communication node receives a third signaling sent by the second communication node;

in step S32, a parameter of the current communication characteristic consistency is obtained from the third signaling, where the parameter of the communication characteristic consistency is used to describe the communication characteristic of the communication link.

In this embodiment, another method for measuring a link between communication nodes is provided, and fig. 2 is a flowchart of another method for measuring a link between communication nodes according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

step S202, a second communication node receives a first signaling sent by a first communication node;

step S204, the second communication node obtains description information carried by the first signaling and used for describing the sounding reference signal.

On the second communication node side, the method for measuring a link between communication nodes according to the embodiments of the present invention can be implemented by following several related schemes:

step S41, the second communication node receives the second signaling sent by the first communication node;

in step S42, the second communication node learns the parameter of the current communication characteristic consistency from the second signaling, where the parameter of the communication characteristic consistency is used to describe the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

Step S51, the second communication node obtains the measurement result of the link measurement and/or the known information, wherein the known information is used for describing the parameters of the first communication node and/or the second communication node;

and step S52, the second communication node indicates the parameter of the consistency of the current communication characteristics of the link between the communication nodes to the first communication node through third signaling based on the measurement result and/or the known information, wherein the parameter of the consistency of the communication characteristics is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

Optionally, the first communication node and the second communication node, which are executing the above steps, may be a base station and a terminal, respectively, or may also be a terminal and a base station, respectively, but are not limited thereto.

Optionally, the sending method of the first signaling includes one of: the first communication node actively transmits; the first communication node sends the measurement request after receiving the measurement request sent by the second communication node.

In an optional implementation manner of this embodiment, the first signaling is at least one of the following: RRC signaling of a radio resource control layer; media Access Control (MAC) signaling; single level physical layer signaling; multi-level physical layer signaling.

In an optional implementation manner of this embodiment, the content of the first signaling includes at least one of: measuring a reference signal; measuring a transmission resource of a reference signal; measuring a transmission mode of a reference signal; measuring a reception resource of a reference signal; measuring a receiving mode of a reference signal; measuring the content; and (4) configuration of feedback measurement results.

In an optional implementation manner of this embodiment, the measurement reference signal includes at least one of: a synchronization signal SS; a channel state measurement reference signal (CSI-RS); measuring a signal SRS; a downlink demodulation reference signal; and uplink demodulation reference signals.

Optionally, the measurement reference signal transmission and/or reception resource refers to a resource allocated according to at least one of the following manners: pattern, range, validity time, number, wherein the allocated resources comprise at least one of: time domain resources, frequency domain resources, spatial domain resources, beam resources.

Optionally, the sending method of the sounding reference signal includes at least one of: a reference signal transmission order; a reference signal transmission period; a reference signal transmission mode;

optionally, the receiving manner of the sounding reference signal includes at least one of: a reference signal transmission order; a reference signal transmission period; a reference signal reception mode;

optionally, the transmission and/or reception order of the sounding reference signal includes at least one of: mapping sequence of reference signals to time domain resources; mapping sequence of reference signals to frequency domain resources; mapping sequence of reference signals to space domain resources; mapping sequence of reference signals to beam resources; a transmission and/or reception timing of time domain resources, or a transmission and/or reception timing of frequency domain resources, or a transmission and/or reception timing of spatial domain resources, or a transmission and/or reception timing of beam resources.

Optionally, the reference transmission/reception mode includes at least one of: space diversity, space multiplexing, closed-loop transmission, open-loop transmission.

Optionally, the feedback content and the link measurement content are in the same set or a subset of the link measurement content, and the feedback content includes at least one of the following: characteristic information of links between nodes; n best receive beams; m optimal transmit beams; l sets of optimal transmit beams; h sets of best receive beams; wherein N, M, L and H are all nonnegative integers.

Optionally, the characteristic information of the link between the nodes includes at least one of the following: communication frequency band, link quality, channel reciprocity, channel statistics, transmit beams, receive beams, time offset, and frequency offset.

Optionally, the known information includes at least one of:

a device parameter used by the first communication node in a receive mode;

a device parameter used by the first communication node in a transmit mode;

whether the parameters of the devices used by the first communication node in the transceiving mode are the same or not;

a beam used by the first communication node in a transmit mode;

a beam used by the first communication node in a receive mode;

a resource used by the first communication node in a transmit mode;

a resource used by the first communication node in a receive mode;

device parameters used by the second communication node in the receive mode;

device parameters used by the second communication node in the sending mode;

whether the parameters of the devices used by the second communication node in the transceiving mode are the same or not;

a beam used by the second communication node in the transmit mode;

a beam used by the second communication node in a receive mode;

a resource used by the second communication node in the transmit mode;

a resource used by the second communication node in the receive mode;

Optionally, the content of the second signaling includes at least one of: the identification is used for representing whether the transceiving characteristics of the first communication node are consistent; representing the consistency grade identification of the receiving and sending characteristics of the first communication node; the identification is used for representing whether the receiving and sending characteristics of the second communication node are consistent; representing the consistency grade identification of the receiving and sending characteristics of the second communication node; the identifier is used for representing whether the link from the first communication node to the second communication node is consistent with the link from the second communication node to the first communication node in characteristics or not; the consistency grade identification of the link from the first communication node to the second communication node and the link from the second communication node to the first communication node is represented; a quasi-common position between reference signals; the beam configuration used for the traffic channel.

Optionally, the third signaling is at least one of: radio resource control, RRC, signaling; media Access Control (MAC) signaling; single level physical layer signaling; multi-level physical layer signaling.

Optionally, the content of the third signaling includes at least one of: the identification is used for representing whether the transceiving characteristics of the first communication node are consistent; representing the consistency grade identification of the transceiving characteristics of the first communication node; the identification is used for representing whether the receiving and sending characteristics of the second communication node are consistent; representing the consistency grade identification of the receiving and sending characteristics of the second communication node; the identifier is used for representing whether the link from the first communication node to the second communication node is consistent with the link from the second communication node to the first communication node in characteristics or not; the consistency grade identification of the link from the first communication node to the second communication node and the link from the second communication node to the first communication node is represented; a quasi-common position between reference signals; the beam configuration used for the traffic channel.

Optionally, after the second communication node learns the configuration for completing the inter-node link measurement, the method further includes: the second communication node performs measurement and/or feedback for the reference signal in accordance with the first signaling.

Optionally, after the second communication node learns the configuration for completing the inter-node link measurement, the method further includes: the second communication node completes transmission of the reference signal in accordance with the first signaling.

Optionally, the method for the first node to learn the parameter of the current communication feature consistency includes at least one of the following: the first node measurement result, the second node report result and the known information.

Optionally, after the second communication node learns the description information of the measurement reference signal, the method further includes: when the transmission order of the reference signals is not specified in the first signaling, the second communication node may complete the transmission of the reference signals according to a predetermined transmission order or the corresponding resource during the previous feedback.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 2

In this embodiment, a device for measuring a link between communication nodes is also provided, where the device is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 3 is a block diagram of a measurement apparatus for a link between communication nodes according to an embodiment of the present invention, applied to a first communication node, as shown in fig. 3, the apparatus includes: an indication module 30, configured to send a first signaling to a second communication node; the first signaling carries description information for describing a measurement reference signal.

Optionally, the content of the first signaling includes at least one of: measuring a reference signal; measuring a transmission resource of a reference signal; measuring a transmission mode of a reference signal; measuring a reception resource of a reference signal; measuring a receiving mode of a reference signal; measuring the content; and (4) configuration of feedback measurement results.

The present embodiment is applied to a measurement apparatus for a link between another communication node of a first communication node, including: and the indicating module is used for indicating the parameters of the current communication characteristic consistency of the links between the communication nodes to the second communication node through second signaling, wherein the parameters of the communication characteristic consistency are used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

The present embodiment is applied to a measurement apparatus for a link between another communication node of a first communication node, including: the device comprises an indication module, a measurement reference signal generation module and a measurement reference signal generation module, wherein the indication module is used for sending a first signaling to a second communication node, and the first signaling carries description information for describing the measurement reference signal; a receiving module, configured to receive a measurement reference signal sent by a second communication node according to a first signaling configuration; and the processing module is used for completing measurement and/or feedback of the measurement reference signal.

The present embodiment is applied to a measurement apparatus for a link between another communication node of a first communication node, including: a receiving module, configured to receive a third signaling sent by a second communication node; and a learning module, configured to learn, from the third signaling, a parameter of the current communication characteristic consistency, where the parameter of the communication characteristic consistency is used to describe a communication characteristic of the communication link.

Fig. 4 is a block diagram of another measurement apparatus for a link between communication nodes according to an embodiment of the present invention, which is applied to a second communication node, and as shown in fig. 4, the apparatus includes:

a receiving module 40, configured to receive a first signaling sent by a first communication node;

and a learning module 42, configured to learn description information carried in the first signaling and used for describing the sounding reference signal.

The embodiment of the apparatus for measuring a link between two communication nodes applied to a second communication node includes: a receiving module, configured to receive a second signaling sent by a first communication node; and the learning module is used for learning the parameter of the current communication characteristic consistency from the second signaling, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristic of the communication link.

The present embodiment is applied to another apparatus for measuring a link between communication nodes of a second communication node, including: a sending module, configured to send a third signaling to the first communication node to indicate a parameter of current communication feature consistency; wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 3

This embodiment is an alternative embodiment of the present invention, and is used to complement the above embodiment and to explain the present application in detail:

according to one embodiment of the invention, a method and a device for measuring links between communication nodes are provided, which comprises the following steps: the base station informs the terminal of the measurement configuration of the communication link through signaling:

optionally, the base station may actively send a signaling according to a scheduling requirement;

optionally, the base station may send the signaling after receiving the measurement request sent by the terminal;

optionally, the base station may determine the required measurement reference signal in a self-help manner;

optionally, the base station may determine the required measurement reference signal according to the measurement request type of the terminal;

optionally, the measurement configuration may include a transmission configuration of a downlink reference signal transmitted by the base station;

optionally, the measurement configuration may include a transmission configuration of an uplink reference signal, which is specified by the base station and transmitted by the terminal;

optionally, the measurement configuration may include a reception configuration of the terminal specified by the base station for the downlink measurement signal;

optionally, the measurement configuration may include whether the terminal specified by the base station feeds back the downlink measurement result;

optionally, the measurement configuration may include a feedback format of the terminal for the downlink measurement result specified in between;

optionally, the measurement coordination may include the base station feeding back the uplink measurement result.

Optionally, the measurement configuration may include a feedback format of the uplink measurement result by the base station;

optionally, the terminal completes measurement of a downlink reference signal sent by the terminal according to the received signaling;

optionally, the terminal completes feedback of the measurement result of the downlink reference signal according to the received signaling;

optionally, the terminal completes sending the uplink reference signal according to the received signaling;

according to one embodiment of the invention, a method and a device for measuring links between communication nodes are provided, which comprises the following steps: the base station informs the terminal of the consistency parameter of the current communication state through signaling:

optionally, the parameter may be used to characterize whether the receiving and sending consistency of the base station is true;

optionally, the parameter may be used to characterize the level of the receiving and sending consistency of the base station;

optionally, the parameter may be used to characterize whether the base station receives and transmits the same beam;

optionally, the parameter may be used to characterize a quasi-co-location relationship between reference signals received and transmitted by the base station;

optionally, the parameter may be used to characterize a relationship between the base station end and beams used for the traffic channel;

optionally, the parameter may be used to characterize whether the terminal transceiving consistency is established;

optionally, the parameter may be used to characterize the level of the transceiving consistency of the terminal;

optionally, the parameter may be used to characterize whether the terminal receives and transmits the same beam;

optionally, the parameter may be used to characterize a quasi co-location relationship between reference signals received and transmitted by the terminal;

optionally, the parameter may be used to characterize a relationship between beams used by the terminal for the traffic channel;

optionally, the parameter may be used to characterize the channel characteristics between the current uplink and downlink;

optionally, the signaling may be a first configuration of a current communication state consistency parameter;

optionally, the signaling may be reconfiguration of the current communication state consistency parameter;

optionally, the signaling may be activation of an existing communication state consistency parameter;

optionally, the terminal completes acquiring the downlink receiving mode according to the received signaling;

optionally, the terminal completes acquiring the sending mode of the uplink according to the received signaling;

according to an embodiment of the invention, a method and a device for measuring links between communication nodes are provided, which comprises the following steps: the terminal informs the base station of the consistency parameter of the current communication state through signaling:

optionally, the parameter may be used to characterize whether the receiving and sending consistency of the base station is established;

optionally, the parameter may be used to characterize a quasi-co-location relationship between reference signals transmitted and received by the terminal;

optionally, the base station completes acquiring the uplink receiving mode according to the received signaling;

optionally, the base station completes the acquisition of the downlink transmission mode according to the received signaling;

the embodiment further includes a plurality of specific embodiments, which are used for explaining in combination with different scenarios, and the specific embodiments are as follows:

specific example 1:

according to the embodiment of the invention, a method for measuring signaling configuration between communication nodes is provided:

fig. 5 is an exemplary diagram of a downlink measurement signal sending process according to an embodiment of the present invention, and as shown in fig. 5, a base station may send a downlink measurement configuration according to a downlink measurement request sent by a terminal or actively send the downlink measurement configuration.

Optionally, Y (Y is greater than or equal to 0) time units (for example, slots, TTIs, etc.) of the downlink measurement configuration and the downlink reference signal transmission time interval may be predetermined.

Optionally, Y (Y is greater than or equal to 0) time units (e.g., slots, TTIs, etc.) of the downlink measurement configuration and the downlink reference signal transmission time interval may be carried in the measurement request sent by the terminal.

Optionally, Y (Y is greater than or equal to 0) time units (e.g., slots, TTIs, etc.) of the downlink measurement configuration and the downlink reference signal transmission time interval may be used as parameters of the downlink measurement configuration.

When the base station issues the downlink reference signal, the mapping sequence of the downlink reference signal to the resources needs to be consistent with the measurement configuration parameters issued by the base station;

when the measurement is initiated by the base station (when measurement configuration is actively issued), the terminal needs to feed back the downlink measurement result according to the measurement configuration, and the feedback content may be:

n optional best transmit beams, and their corresponding RSRPs (including reference beam-based differential RSRPs)

Optionally N best transmit beams, and their corresponding receive beams, and their corresponding RSRPs (including reference beam based differential RSRPs)

Optionally H sets of optimal transmit beams, wherein each set comprises I transmit beams and their corresponding RSRPs.

Alternatively, fig. 6 is a diagram illustrating a reference signal-beam mapping according to an embodiment of the present invention, and as shown in fig. 6, when downlink reference signals are simultaneously transmitted from L antenna terminals, a terminal may follow the obtained channel coefficient matrix

Or the channel covariance matrix R ═ HH^HAnd acquiring and feeding back used precoding weights (sets) of a downlink of the base station, or characteristic vectors, characteristic roots and the like, wherein H is an L-M dimensional matrix, and M is more than or equal to 1.

When M is>1, the terminal can pass

Or R^TLearning and feeding back a base station when the base station receives an uplink signal and a terminal acquires the uplink signal by using the same configuration as that of a downlink reference signal currently sentPrecoding weights (sets), or eigenvectors, roots of features, etc., used by the link when uplink signaling is performed with the same configuration as when downlink reference signals were received first, where

Is a set of any one row and m columns in the H matrix, L is more than or equal to 1 and less than or equal to L and is 1<m≤M。

Specific example 2:

fig. 7 is a diagram illustrating an uplink measurement signal transmission flow according to an embodiment of the present invention, and as shown in fig. 7, a base station may transmit an uplink measurement configuration according to an uplink measurement request sent by a terminal or actively.

The optional Y (Y is greater than or equal to 0) time units (e.g., slots, TTIs, etc.) of the time interval between the terminal receiving the uplink measurement configuration and transmitting the uplink reference signal may be predetermined.

The optional time units (such as slot, TTI, etc.) of the time interval (Y ≧ 0) between the terminal receiving the uplink measurement configuration and sending the uplink reference signal may be carried in the measurement request sent by the terminal.

The optional time units (such as slots, TTIs and the like) of the time interval (Y is more than or equal to 0) between the terminal receiving the uplink measurement configuration and the terminal sending the uplink reference signal can be used as the parameters of the downlink measurement configuration.

Optionally, when the terminal sends the uplink reference signal, the mapping relationship between the reference signal and the resource needs to be consistent with the measurement configuration parameter issued by the base station;

fig. 8 is a schematic diagram 1 of a base station/terminal transceiving beam configuration according to an embodiment of the present invention, and as shown in fig. 8, when the base station knows I beam information used by the terminal for receiving downlink signals, the base station may notify selected J (J ≦ I) beams for transmitting uplink signals through measurement configuration and specify a mapping relationship between the uplink signals and the J beams.

Optionally, the base station may configure the terminal to transmit the uplink reference signal according to the optimal receiving beam;

optionally, the base station may configure the terminal to send the uplink reference signal according to the received beam and the sequence corresponding to the reported uplink beam measurement result (optionally, the configuration may be a default rule between the base station and the terminal);

optionally, the base station may configure the terminal to transmit the uplink reference signal according to the optimal receiving beam and a beam covering a specific spatial area near the optimal receiving beam according to a specific order, and such limitation may be completed by directly indicating a spatial range, an angle offset, a precoding set, or a resource;

when the measurement is initiated by the terminal (an uplink measurement request is sent), the base station needs to feed back the uplink measurement result according to the measurement configuration, and the feedback content may be:

optional N best transmit beams, and their corresponding RSRP (including reference beam-based differential RSRP)

Optional N best transmit beams, and their corresponding receive beams, and their corresponding RSRPs (including reference beam-based differential RSRPs)

Alternatively, as shown in fig. 6, when the uplink reference signals are transmitted simultaneously by L antenna terminals, the base station may follow the obtained channel coefficient matrix

Or the channel covariance matrix R ═ HH^HAnd acquiring and feeding back a used precoding weight (set) of a terminal uplink, or a characteristic vector, a characteristic root and the like, wherein H is an L-M dimensional matrix, and M is more than or equal to 1.

When M is>1, the base station can pass

Or R^TThe method comprises the steps of obtaining and feeding back precoding weights (set) or characteristic vectors, characteristic roots and the like used by a link when a base station performs downlink signal transmission by using the same configuration as that of the currently received uplink reference signal and a terminal performs downlink signal reception by using the same configuration as that of the previously transmitted uplink reference signal, wherein the precoding weights (set) or the characteristic vectors, the characteristic roots and the like are used by the link when a base station performs downlink signal transmission by using the same configuration as that of the currently received uplink reference signal

Specific example 3:

fig. 9 is a schematic diagram 1 of sending communication characteristic consistency parameters according to an embodiment of the present invention, and as shown in fig. 9, after obtaining a downlink measurement feedback result of a terminal and a measurement result of an uplink reference signal, a base station obtains a parameter of current communication characteristic consistency and informs the terminal of the parameter of current communication characteristic consistency through signaling.

Fig. 10 is a schematic diagram of consistency of uplink and downlink beams in the embodiment of the present invention, and as shown in fig. 10, when the base station and the terminal measure that the selected optimal transceiving beams are consistent, it is proved that respective transceiving characteristics of the base station and the terminal in current communication are consistent.

Optionally, when the respective transceiving characteristics of the base station and the terminal side are consistent, when the quality of the uplink and downlink measured links is the same, it is proved that the characteristics of the uplink and downlink are consistent.

Optionally, when the respective transceiving characteristics of the base station and the terminal side are consistent, when the uplink channel characteristics obtained by the base station through the uplink reference signal measurement are consistent with the uplink channel characteristics derived by measuring the downlink reference signal fed back by the terminal, it is proved that the characteristics of the uplink and downlink links are consistent.

Optionally, when the respective transceiving characteristics of the base station and the terminal side are consistent, when the downlink channel characteristics calculated by the base station through uplink reference signal measurement are consistent with the downlink channel characteristics fed back by the terminal through downlink reference signal measurement, it is proved that the characteristics of the uplink and downlink links are consistent.

Optionally, the base station may indicate whether the current communication characteristic consistency of the terminal is established through 1bit content in the downlink signaling. When the indication information is 1, the consistency of the current communication characteristics is established, and when the indication information is 0, the consistency is not established;

optionally, when the indication information is 0, the base station may represent the difference in characteristics between the current uplink and downlink through N additional bits.

Optionally, when the indication information is 0, the base station may indicate, by additional M bits, a receive beam and a transmit beam that the terminal needs to adopt in the subsequent data transmission process.

Optionally, the base station may divide the consistency of the current communication characteristics into L levels according to a predetermined criterion with the terminal and use the L levels in the signaling

Indicates the number of bits.

Optionally, the agreed criteria include: difference between uplink and downlink quality; the characteristic value difference between a downlink channel obtained by the uplink reference signal and a downlink channel directly received by the downlink reference signal; the difference of the characteristic vectors between a downlink channel obtained by the uplink reference signal and a downlink channel directly received by the downlink reference signal; precoding weight between a downlink channel obtained by the uplink reference signal and a downlink channel directly received by the downlink reference signal; the characteristic value difference between an uplink channel obtained by a downlink reference signal and an uplink channel directly received by the uplink reference signal; a difference in eigenvectors between an uplink channel obtained from the downlink reference signal and an uplink channel directly received from the uplink reference signal; precoding weight between an uplink channel obtained by a downlink reference signal and an uplink channel directly connected by the uplink reference signal;

optionally, the base station may characterize whether the consistency of the current communication characteristics is satisfied or different levels by configuring that a quasi-co-location hypothesis containing spatial channel parameters has a quasi-co-location relationship between the downlink reference signal and the uplink reference;

optionally, the base station configures that the downlink CSI-RS and the uplink SRS have a quasi-co-location relationship with respect to the spatial channel parameters, so as to represent that the respective transceiving characteristics of the base station and the terminal side are consistent.

Optionally, the base station configures that the downlink CSI-RS and the uplink DMRS have a quasi-co-location relationship with respect to the spatial channel parameter, so as to characterize that the characteristics of the uplink are consistent.

Optionally, the base station configures a quasi-co-location relationship between the downlink DMRS and the uplink DMRS with respect to the spatial channel parameter, so as to characterize the consistency of characteristics between the uplinks.

Optionally, the base station may characterize whether the current communication characteristic consistency is established by configuring the transceiving beams of the uplink and downlink traffic channels.

Specific example 4:

fig. 11 is a schematic diagram of sending communication characteristic consistency parameters according to an embodiment of the present invention, and as shown in fig. 11, after acquiring an uplink measurement feedback result of a base station and a measurement result of a downlink reference signal, a terminal acquires parameters of current communication characteristic consistency and informs the base station through signaling.

As shown in fig. 10, when the base station and the terminal measure that the selected optimal transceiving beams are consistent, it is proved that the respective transceiving characteristics of the base station and the terminal in the current communication are consistent.

Optionally, when the respective transceiving characteristics of the base station and the terminal side are consistent, when the downlink channel characteristics obtained by the terminal through the measurement of the downlink reference signal are consistent with the downlink channel characteristics derived by the base station through the measurement of the uplink reference signal, the consistency of the characteristics between the uplink and the downlink is proved.

Optionally, when the respective transceiving characteristics of the base station and the terminal side are consistent, when the uplink channel characteristics calculated by the terminal through the measurement of the downlink reference signal are consistent with the uplink channel characteristics fed back by the base station through the measurement of the uplink reference signal, it is proved that the characteristics of the uplink and the downlink are consistent.

Optionally, the terminal may indicate whether the current communication characteristic consistency of the base station is established through 1bit content in the signaling. When the indication information is 1, representing that the consistency of the current communication characteristics is established, and when the indication information is 0, representing that the consistency is not established;

optionally, when the indication information is 0, the terminal may represent the difference in characteristics between the current uplink and downlink through N additional bits.

Optionally, when the indication information is 0, the terminal may indicate, through additional M bits, a receive beam and a transmit beam that need to be adopted by the base station in a subsequent data transmission process.

Optionally, the terminal may divide the consistency of the current communication characteristics into L levels according to a criterion agreed with the terminal in advance and use the L levels in the signaling

Indicates the number of bits.

Optionally, the terminal may characterize whether the consistency of the current communication characteristics is satisfied or different levels by configuring that a quasi-co-location hypothesis containing spatial channel parameters has a quasi-co-location relationship between the downlink reference signal and the uplink reference;

optionally, the terminal configures that the spatial channel parameters of the downlink CSI-RS and the uplink SRS have a quasi-co-location relationship, so as to characterize that the respective transceiving characteristics of the base station and the terminal side are consistent.

Optionally, the terminal configures that the downlink CSI-RS and the uplink DMRS have a quasi-co-location relationship with respect to the spatial channel parameters, so as to characterize that the characteristics of the uplinks are consistent.

Optionally, the terminal is configured that the downlink DMRS and the uplink DMRS have a quasi-co-location relationship with respect to the spatial channel parameter, so as to characterize that the characteristics of the uplink are consistent.

Optionally, the terminal may characterize whether the current communication characteristic consistency is established by configuring the transceiving beams of the uplink and downlink traffic channels.

According to the embodiment of the invention, the base station sends the configuration information of the link measurement to the terminal through the signaling. The base station/terminal can complete the determination of the consistency parameter of the current link according to the current self-measuring result, the terminal/base station feedback result and the known information, and inform the terminal/base station through signaling.

Example 4

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, the second communication node is instructed to complete the measurement of the link between the first communication node and the second communication node through the first signaling; the first signaling carries description information for describing a measurement reference signal.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium, to instruct the second communication node to complete measurement of the link between the first communication node and the second communication node through the first signaling; the first signaling carries description information for describing a measurement reference signal.

Optionally, for a specific example in this embodiment, reference may be made to the examples described in the above embodiment and optional implementation, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for measuring a link between communication nodes, comprising:

the first communication node learns the parameters of the consistency of the current communication characteristics through at least one of the following steps: the first communication node measures a result, and the second communication node reports the result and known information;

the first communication node indicates the parameter of the current communication characteristic consistency to the second communication node through a second signaling;

wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

2. The method of claim 1, wherein the known information comprises at least one of:

a device parameter used by the first communication node in a receive mode;

a device parameter used by the first communication node in a transmit mode;

a beam used by the first communication node in a transmit mode;

a beam used by the first communication node in a receive mode;

a resource used by the first communication node in a transmit mode;

a resource used by the first communication node in a receive mode;

device parameters used by the second communication node in the receive mode;

device parameters used by the second communication node in the sending mode;

a beam used by the second communication node in the transmit mode;

a beam used by the second communication node in a receive mode;

a resource used by the second communication node in the transmit mode;

a resource used by the second communication node in the receive mode;

3. The method of claim 1, wherein the second signaling is at least one of:

radio resource control, RRC, signaling;

media Access Control (MAC) signaling;

single level physical layer signaling;

multi-level physical layer signaling.

4. The method of claim 1, wherein the content of the second signaling comprises at least one of:

a quasi-common position between reference signals;

the beam configuration used for the traffic channel.

5. The method of claim 4, wherein the traffic channel comprises at least one of: synchronization channel, broadcast channel, control channel, data channel.

6. A method for measuring a link between communication nodes, comprising:

the first communication node receives a third signaling sent by the second communication node;

and acquiring the parameter of the current communication characteristic consistency from the third signaling, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the communication link.

7. The method of claim 6, wherein the third signaling is at least one of:

radio resource control, RRC, signaling;

media Access Control (MAC) signaling;

single level physical layer signaling;

multi-level physical layer signaling.

8. The method according to claim 6 or 7, characterized in that the content of the third signaling comprises at least one of:

a quasi-common position between reference signals;

the beam configuration used for the traffic channel.

9. A method for measuring a link between communication nodes, comprising:

the second communication node receives a second signaling sent by the first communication node;

the second communication node learns the parameter of the current communication characteristic consistency from the second signaling, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link, and the first communication node learns the parameter of the current communication characteristic consistency through at least one of the following: and the first communication node measures a result, and the second communication node reports the result and known information.

10. A method for measuring a link between communication nodes, comprising:

the second communication node acquires the measurement result of the link measurement and/or known information, wherein the known information is used for describing the parameters of the first communication node and/or the second communication node;

and the second communication node indicates the parameter of the consistency of the current communication characteristics of the link between the communication nodes to the first communication node through third signaling based on the measurement result and/or the known information, wherein the parameter of the consistency of the communication characteristics is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

11. An apparatus for measuring a link between communication nodes, applied to a first communication node, comprising:

an indicating module, configured to acquire, by the first communication node, a parameter of current communication feature consistency through at least one of: the first communication node measures a result, and the second communication node reports the result and known information; and indicating the parameter of the current communication characteristic consistency of the link between the communication nodes to the second communication node through second signaling, wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.

12. An apparatus for measuring a link between communication nodes, applied to a first communication node, comprising:

a receiving module, configured to receive a third signaling sent by a second communication node;

and a learning module, configured to learn, from the third signaling, a parameter of current communication characteristic consistency, where the parameter of communication characteristic consistency is used to describe a communication characteristic of a communication link.

13. An apparatus for measuring a link between communication nodes, applied to a second communication node, comprising:

a receiving module, configured to receive a second signaling sent by a first communication node;

a learning module, configured to learn, from the second signaling, a parameter of current communication feature consistency, where the parameter of communication feature consistency is used to describe a communication feature of a communication link, and the first communication node learns the parameter of current communication feature consistency through at least one of: and the first communication node measures a result, and the second communication node reports the result and known information.

14. An apparatus for measuring a link between communication nodes, applied to a second communication node, comprising:

a sending module, configured to send a third signaling to the first communication node to indicate a parameter of current communication feature consistency; wherein the parameter of the communication characteristic consistency is used for describing the communication characteristics of the first communication node and/or the second communication node and/or the communication link.