WO2021088851A1 - Transmission method and apparatus, first communication node, second communication node, and medium - Google Patents

Abstract

Provided are a transmission method and apparatus, a first communication node, a second communication node, and a medium. The transmission method comprises: configuring a sounding reference signal (SRS) resource set, wherein the SRS resource set is used for beam management, codebook, non-codebook or antenna switching; and receiving an SRS sent by a second communication node according to the SRS resource set.

Description

Transmission method, device, first communication node, second communication node and medium

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 201911090287.0 on November 8, 2019. The entire content of this application is incorporated into this application by reference.

Technical field

This application relates to a wireless communication network, for example, to a transmission method, device, first communication node, second communication node, and medium.

Background technique

With the development of communication technology, the demand for data services continues to increase. The first communication node can determine the channel state information of the second communication node according to the Sounding Reference Signal (SRS) sent by the second communication node, and perform operations such as frequency domain selection scheduling and closed-loop power control based on this. In the related art, the flexibility of the signaling configuration and signal transmission of the SRS between the first communication node and the second communication node is poor, and it is impossible to guarantee effective and accurate signal transmission in various situations, which affects the reliability of communication.

Summary of the invention

This application provides a transmission method, device, a first communication node, a second communication node, and a medium to improve the flexibility of signal transmission and the reliability of communication.

The embodiment of the present application provides a transmission method, which is applied to a first communication node, and includes:

Configuring a sounding reference signal SRS resource set, where the use of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

Receiving the SRS sent by the second communication node according to the SRS resource set.

The embodiment of the present application also provides a transmission method applied to a second communication node, including:

Receiving configuration information of an SRS resource set of the first communication node, where the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

The SRS is sent according to the configuration information of the SRS resource set.

An embodiment of the present application also provides a transmission device, including:

A configuration module, configured to configure a sounding reference signal SRS resource set, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

The signal receiving module is configured to receive the SRS sent by the second communication node according to the SRS resource set.

An embodiment of the present application also provides a transmission device, including:

A configuration receiving module, configured to receive configuration information of the SRS resource set of the first communication node;

The signal sending module is configured to send the SRS according to the configuration information of the SRS resource set, and the use of the SRS resource set is beam management, codebook, non-codebook or antenna switching.

The embodiment of the present application also provides a first communication node, including:

One or more processors;

Storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the foregoing transmission method applied to the first communication node.

The embodiment of the present application also provides a second communication node, including:

One or more processors;

Storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned transmission method applied to the second communication node.

The embodiments of the present application also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium, and when the program is executed by a processor, the foregoing transmission method is implemented.

Description of the drawings

FIG. 1 is a flowchart of a transmission method applied to a first communication node according to an embodiment;

2 is a flowchart of a transmission method applied to a second communication node according to an embodiment;

FIG. 3 is a schematic structural diagram of a transmission device provided by an embodiment;

4 is a schematic structural diagram of another transmission device provided by an embodiment;

FIG. 5 is a schematic structural diagram of a first communication node provided by an implementation;

Fig. 6 is a schematic structural diagram of a second communication node provided by an implementation.

Detailed ways

The application will be described below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the application, but not to limit the application. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict. In addition, it should be noted that, for ease of description, the drawings only show a part of the structure related to the present application instead of all of the structure.

In the Long Term Evolution-Advanced (LTE-A) Release 10 standard (LTE-A version 10), non-precoded SRS, that is, the antenna-specific SRS, is used in uplink communication. The reference signal (Demodulation Reference Signal, DMRS) used for demodulation of the Physical Uplink Shared Channel (PUSCH) is pre-coded. The first communication node can estimate the original uplink CSI by receiving the non-precoded SRS, but the precoded DMRS cannot enable the first communication node to estimate the original uplink CSI. In this case, when the second communication node uses multiple antennas to transmit non-precoded SRS, the required SRS resources will increase, resulting in a decrease in the number of second communication nodes that can be multiplexed simultaneously in the system. The second communication node can send SRS through two triggering methods: high-level signaling (also known as trigger type 0) or downlink control information (also known as trigger type 1 trigger), and periodic SRS is triggered based on high-level signaling , Aperiodic SRS is triggered based on Downlink Control Information (DCI). Physical Downlink Control Channel (PDCCH) is used to carry DCI, where DCI may include uplink and downlink scheduling information, and uplink power control information. In LTE-A Release 10, a non-periodic SRS transmission method is added, which improves the utilization rate of SRS resources to a certain extent and improves the flexibility of resource scheduling.

In the Realease 15 standard of New Radio (NR), SRS can be used for multiple purposes. In this case, the signaling configuration and signal transmission of SRS between the first communication node and the second communication node in the related art It has poor flexibility and cannot guarantee effective and accurate signal transmission under various conditions, which affects communication reliability. For example, in the case where the usage parameter (usage) of the SRS resource set is configured as a codebook or a non-codebook, the first communication node may configure two SRS resource sets for the second communication node, and two SRS resource sets It may be periodic or aperiodic. How to correlate and configure the parameters in the two SRS resource sets affects the reliable transmission of the signal. For another example, when the usage parameters of the SRS resource set are configured as codebook or non-codebook, if the first communication node only configures a periodic SRS resource set for the second communication node, and the first communication node wants to pass Downlink Control Information (DCI) triggers the second communication node to send aperiodic SRS. In this case, how to configure the periodic SRS resource set affects the determination of the aperiodic SRS transmission time slot and also affects the signal Reliable transmission.

In the embodiment of this application, the first communication node refers to the network side, base station, serving node, etc., such as an evolved base station (e-Node-B, eNB). The second communication node device can be configured through downlink control information, and the second communication The node refers to the terminal side, user equipment (User Equipment), etc., which can accept DCI control or accept high-level signaling configuration.

Fig. 1 is a flowchart of a transmission method provided by an embodiment, and the transmission method can be applied to a first communication node. As shown in FIG. 1, the method provided in this embodiment includes step 110 and step 120.

In step 110, a sounding reference signal SRS resource set is configured, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching.

In step 120, the SRS sent by the second communication node according to the SRS resource set is received.

A sounding reference signal (Sounding Reference Signal, SRS for short) is a signal used between a second communication node device and a first communication node to measure wireless channel information (Channel State Information, CSI). In the long-term evolution system, the second communication node periodically sends uplink SRS on the last data symbol of the sending subframe according to the parameters such as frequency band, frequency domain position, sequence cyclic shift, period, and subframe offset indicated by the first communication node. . The first communication node judges the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling and closed-loop power control according to the obtained CSI.

In this embodiment, the first communication node configures the SRS resource set based on the purpose of the SRS resource set, and on this basis, receives the SRS sent by the second communication node through the configured SRS resource set, thereby improving the flexibility of signal transmission and the communication efficiency. reliability.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set; the resource type corresponding to the first resource set is aperiodic resources , Semi-persistent resources or periodic resources; the resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources or periodic resources.

In this embodiment, the usage parameter (usage) of the SRS resource set is configured as a codebook or a non-codebook. In this case, the first communication node configures two SRS resource sets for the second communication node, and the two SRS resources The resource type (resource type) corresponding to the set may be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, SRS resource set 0 may be configured as aperiodic resources, and SRS resource set 1 may be configured as periodic resources.

In an embodiment, the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same; the quasi-colocation (Quasi-Co-location) of the first resource set and the second resource set The Location (QCL) relationship is at least one of Type A, Type B, Type C, and Type D.

For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, SRS resource set 0 is configured as aperiodic resources, SRS resource set 1 is configured as periodic resources, and SRS resource set 0 and SRS Resource set 1 has the same bandwidth or the same resource block (RB) location, and SRS resource set 0 and SRS resource set 1 have QCL Type-A, QCL Type-B, QCL Type-C, and QCL Type-D One or more of the relationships.

In an embodiment, the number of SRS resources configured in the first resource set is equal to the number of SRS resources configured in the second resource set; the number of SRS resources in one time slot configured in the first resource set It is equal to the number of SRS resources in the corresponding time slot configured in the second resource set. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, the number of SRS resources in SRS resource set 0 and the number of SRS resources in SRS resource set 1 are equal, and the two SRS resources are concentrated The number of SRS resources in the corresponding time slots is also equal.

In an embodiment, the spatial relationship information (Spatial Relation Information) of the first resource set is the same as the spatial relationship information of the second resource set. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, and the spatial relationship information of SRS resource set 0 and SRS resource set 1 is the same.

In an embodiment, the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

In this embodiment, when the usage parameter of the SRS resource set is configured as a codebook, the first communication node configures only one resource set for the second communication node, that is, a periodic SRS resource set, and the first communication node may The second communication node is triggered to send aperiodic SRS through the SRS request field in the DCI. After detecting the SRS request field in the DCI, the second communication node can use the periodic SRS resource set as an aperiodic SRS resource set.

In an embodiment, the method further includes: triggering the second communication node to send an aperiodic SRS on the target time slot through the SRS request field of the downlink control information, wherein the target time slot is the first time slot counted from the reference time slot. Effective time slots, or the k+1 effective time slot counting from the reference time slot, k is 0 or a positive integer, or the kth effective time slot counting from the reference time slot, k is a positive integer The reference time slot is the time slot corresponding to the value rounded down to the product of n and the first parameter, n corresponds to the time slot that triggers the aperiodic SRS, and the first parameter is the μ _SRS power of 2 and 2. The ratio of μ _{PDCCH to} the power _{of μ PDCCH, μ SRS} is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

In this embodiment, assuming that the UE receives the DCI that triggers the aperiodic SRS in time slot n, the method for determining the time slot in which the UE sends the aperiodic SRS includes at least one of the following:

1) From

The aperiodic SRS resource set is sent in the first valid time slot that starts counting, where _μSRS is the subcarrier interval configuration of the triggered SRS, and μPDCCH is the subcarrier interval configuration of the _PDCCH carrying trigger information.

2) In the slave

The aperiodic SRS resource set is transmitted in the k+1th valid time slot that starts counting, where k is 0 or a positive integer. μ _SRS is the subcarrier interval configuration of the triggered SRS, μ _PDCCH is the subcarrier interval configuration of the PDCCH carrying trigger information, and the value of k can be determined based on the state of the SRS request field.

Table 1 is a mapping relationship table between the SRS request field and the k value in an embodiment. As shown in Table 1, when the SRS request field is 00, the value of k is invalid and does not trigger aperiodic SRS; when the SRS request field is 01, the value of k is 0, that is, from

The aperiodic SRS resource set is transmitted in the first valid time slot that starts counting.

Table 1 The mapping relationship between SRS request field and k value

3) In the slave

The aperiodic SRS resource set is transmitted in the kth effective time slot that starts counting, where k is a non-negative integer, μ _SRS is the subcarrier interval configuration of the triggered SRS, and μ _PDCCH is the subcarrier interval configuration of the PDCCH carrying trigger information, The value of k can be determined based on the state of the SRS request field.

Table 2 The mapping relationship between another SRS request field and the value of k

Table 2 is a mapping relationship table between another SRS request field and the k value in an embodiment. As shown in Table 2, when the SRS request field is 00, the value of k is invalid and does not trigger aperiodic SRS; when the SRS request field is 01, the value of k is 1, that is, from

The aperiodic SRS resource set is transmitted in the first valid time slot that starts counting.

In an embodiment, the effective time slot includes at least one of the following:

The available uplink symbols in the time slot are used for all SRS resource transmission in the SRS resource set, and meet the requirements of the physical Downlink Control Channel (PDCCH) that triggers the aperiodic SRS and the transmission of all SRS resources in the SRS resource set. The minimum time required for the time slot between;

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

In this embodiment, if a time slot is a valid time slot, the time slot satisfies: there are available uplink symbols in the time slot that can be used to send all SRS resources in the SRS resource set, and the time slot can meet the requirements for triggering non-triggering. The minimum time requirement between the PDCCH of the periodic SRS and the transmission of all SRSs in the SRS resource set; in some embodiments, it is also satisfied that the time slot is not a time slot for transmitting the periodic SRS.

In an embodiment, the power control parameter of the first resource set configuration is the same as the power control parameter of the second resource set configuration; the power control parameter includes: transmission power, path loss compensation, and path loss.

In this embodiment, for codebook-based transmission or non-codebook-based transmission, the first communication node configures two SRSs for the second communication node when the use parameters of SRS are configured as codebook or non-codebook. Resource sets. The resource types corresponding to the two SRS resource sets can be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, SRS resource set 0 may be configured as aperiodic resources, and SRS resource set 1 may be configured as periodic resources. The power control parameters corresponding to SRS resource set 0 and SRS resource set 1 are the same, and the power control parameters include transmission power (alpha) of the SRS signal, path loss compensation (p0), and path loss (pathlossReferenceRS).

In this embodiment, the UE expects that the power control parameters in the periodic SRS resource set and the aperiodic SRS resource set are configured to the same value.

In an embodiment, the difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

In this embodiment, the difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, SRS resource set 0 may be configured as aperiodic resources, and SRS resource set 1 may be configured as periodic resources. There is a difference of M dBm between the transmit power of the periodic SRS resource set and the transmit power of the aperiodic SRS resource set, where M is a predefined value or is configured by the base station through RRC signaling.

In an embodiment, the method further includes: in the case that the resource type corresponding to the first resource set is periodic resources and the resource type corresponding to the second resource set is aperiodic resources, indicating the second communication through the scheduling request indication field in the PDCCH The node determines the SRS resource from the nearest resource set, where the nearest resource set is the first resource set or the second resource set closest to the time slot where the PDCCH is located.

In this embodiment, when the usage parameters of SRS are configured as codebook or non-codebook, the first communication node configures two SRS resource sets for the second communication node, for example, they are configured as periodic SRS resource sets and non-periodic SRS resource sets. SRS resource set, the Schduling Request Indication (SRI) field in the PDCCH is used to indicate that one SRS resource is selected from the latest (latest) SRS resource set, where the nearest SRS resource set is the distance carrying SRI The most recent periodic SRS resource set or aperiodic SRS resource set of the time slot where the PDCCH of the domain is located.

In an embodiment, when the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resources Trigger status (denoted as aperiodicSRS-ResourceTrigger), periodic SRS resource trigger status (denoted as periodicSRS-ResourceTrigger), semi-persistent SRS resource trigger status (denoted as semi-persistentSRS-ResourceTrigger), aperiodic SRS resource trigger status list (denoted as aperiodicSRS) -ResourceTriggerList), periodic SRS resource trigger status list (denoted as periodicSRS-ResourceTriggerList), semi-persistent SRS resource trigger status list (denoted as semi-persistentSRS-ResourceTriggerList).

In this embodiment, when the SRS resource set is a periodic resource and/or a semi-persistent resource, the parameters of the SRS resource set are configured to indicate the resource type and trigger state of the SRS resource in the resource set. For example, if the parameter aperiodicSRS-ResourceTrigger in SRS resource set 1 is configured as "01", if the status of the SRS request field in DCI is 01, it means that this SRS resource set 1 is triggered or selected, thereby instructing the second communication node to use this The SRS resource set sends SRS; if the status of the parameter aperiodicSRS-ResourceTrigger in other SRS resource sets is not "01", it means that other SRS resource sets are not sent. That is, when the status of the aperiodicSRS-ResourceTrigger in the SRS resource set is the same as the status of the SRS request field in the DCI, the second communication node will send this SRS resource set.

In an embodiment, the method further includes: when multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic resources, using downlink control information or a medium access control layer control unit (Medium Access Control) The Control Element, MAC CE) signaling instructs the second communication node to select an SRS resource set and stop or cancel the transmission of other SRS resource sets.

In this embodiment, the first communication node configures multiple SRS resource sets for the second communication node, and the resource types of the multiple SRS resource sets are all periodic. In addition, the first communication node instructs the second communication node to select an SRS resource set from the multiple SRS resource sets through DCI or medium access control control unit MAC CE signaling for SRS transmission, and stop other unselected SRS resource sets. The periodic SRS corresponding to the SRS resource set is sent, so that the period size of the periodic SRS can be dynamically adjusted according to the speed of the channel change. For example, when the channel changes rapidly, an SRS resource set with a small period is selected; when the channel changes slowly, an SRS resource set with a large period is selected.

In an embodiment, multiple SRS periods are configured in the SRS resource set or SRS resource, and the first communication node instructs the second communication node to select from the multiple SRS periods through DCI or medium access control unit MAC CE signaling One is used for SRS transmission, and at the same time, the transmission of other unselected SRS periods is stopped.

In addition, when the SRS resource set includes multiple SRS resources, the second communication node does not expect that the periods of the multiple SRS resources are different, that is, it is expected that the multiple SRS resources are configured with the same period.

In the above embodiment, the first communication node configures the SRS resource set based on the use of the SRS resource set, by configuring resource type, resource quantity, power control parameters, etc., and triggering aperiodic SRS transmission through the SRS request field or SRI field of the downlink control information, On this basis, the SRS sent by the second communication node through the configured SRS resource set is received, thereby improving the flexibility of signal transmission and the reliability of communication.

Fig. 2 is a flow chart of a transmission method provided by an embodiment. This method can be applied to the second communication node. As shown in FIG. 2, the method provided in this embodiment includes step 210 and step 220.

In step 210, the configuration information of the SRS resource set of the first communication node is received, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching.

In step 220, the SRS is sent according to the configuration information of the SRS resource set.

In this embodiment, the SRS resource set is configured for different purposes. On this basis, the SRS is sent according to the configuration information of the SRS resource set, thereby improving the flexibility of signal transmission and the reliability of communication.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.

In this embodiment, the usage parameter (usage) of the SRS resource set is configured as a codebook or a non-codebook. In this case, the first communication node configures two SRS resource sets for the second communication node, and the two SRS resources The resource type (resource type) corresponding to the set may be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures SRS resource set 0 and SRS resource set 1 for the second communication node, SRS resource set 0 may be configured as aperiodic resources, and SRS resource set 1 may be configured as periodic resources.

In an embodiment, the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same; the quasi-colocation relationship between the first resource set and the second resource set is Type A, At least one of type B, type C, and type D.

In an embodiment, the second communication node expects the number of SRS resources centrally configured in the first resource to be equal to the number of SRS resources centrally configured in the second resource; the second communication node expects the first resource centrally configured configuration The number of SRS resources in one time slot of is equal to the number of SRS resources in the corresponding time slot configured in the second resource set.

In this embodiment, the second communication node may notify the first communication node that the number of resources between the two types of resource sets it expects meets: the number of SRS resources configured in the first resource set and the number of SRS resources The number of SRS resources configured in the second resource set is the same, and the number of SRS resources in the corresponding time slot is the same. In an embodiment, the second communication node expects that the spatial relationship information of the first resource set and the spatial relationship information of the second resource set are the same.

In this embodiment, the second communication node may notify the first communication node that the spatial relationship information between the two types of resource sets it expects meets: the spatial relationship information of the first resource set and the first resource set The spatial relationship information of the two resource sets is the same.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

In an embodiment, it further includes: receiving trigger information.

The trigger information is indicated by the first communication node through the SRS request field of the downlink control information, and the trigger information is used to trigger the second communication node to send an aperiodic SRS on a target time slot, where the target time slot is a slave The first valid time slot counted from the reference time slot, or the k+1 valid time slot counted from the reference time slot, k is 0 or a positive integer, or the kth valid time slot counted from the reference time slot Effective time slot, k is a positive integer;

The reference for the time slot n and the product of the first parameter value is rounded down to the corresponding time slot, the time slot corresponding to the n trigger aperiodic SRS, [mu] 2 for the first parameter of power and _SRS 2 The ratio of μ _{PDCCH to} the power, μ _SRS is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

In an embodiment, the effective time slot includes at least one of the following:

There are available uplink symbols in the time slot for the transmission of all SRS resources in the SRS resource set, and the time slot that meets the minimum time requirement between the PDCCH that triggers the aperiodic SRS and the transmission of all SRS resources in the SRS resource set;

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

In an embodiment, the second communication node expects that the power control parameters of the first resource set configuration and the power control parameters of the second resource set configuration are the same; the power control parameters include: transmit power, path loss compensation, and Path loss.

In this embodiment, the second communication node may notify the first communication node that the power control parameters between the two types of resource sets that it expects meet: the power control parameters of the first resource set and the first resource set The power control parameters of the two resource sets are configured to be the same.

In an embodiment, the difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

In an embodiment, it further includes: receiving trigger information.

When the resource type corresponding to the first resource set is periodic resources and the resource type corresponding to the second resource set is aperiodic resources, the trigger information is indicated by the first communication node through the scheduling request indication field in the PDCCH, and The trigger information is used to instruct the second communication node to determine the SRS resource from the nearest resource set, where the nearest resource set is the first resource set or the second resource set closest to the time slot where the PDCCH is located.

In the case that the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resource trigger state, periodic SRS resource Trigger status, semi-persistent SRS resource trigger status, aperiodic SRS resource trigger status list, periodic SRS resource trigger status list, semi-persistent SRS resource trigger status list.

In an embodiment, it further includes: in the case where multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic, the first communication node instructs the first communication node through downlink control information or MAC CE signaling. The second communication node selects an SRS resource set and stops or cancels the sending of other SRS resource sets.

In this embodiment, the first communication node configures multiple SRS resource sets for the second communication node, and the resource types of the multiple SRS resource sets are all periodic resources. In addition, the first communication node instructs the second communication node to select an SRS resource set from the multiple SRS resource sets through DCI or medium access control control unit MAC CE signaling for SRS transmission, and stop other unselected SRS resource sets. The periodic SRS corresponding to the SRS resource set is sent, so that the period size of the periodic SRS can be dynamically adjusted according to the speed of the channel change. For example, when the channel changes rapidly, an SRS resource set with a small period is selected; when the channel changes slowly, an SRS resource set with a large period is selected.

In an embodiment, multiple SRS cycles are configured in the SRS resource set or SRS resource, and the first communication node instructs the second communication node to select from the multiple SRS cycles through DCI or medium access control unit MAC CE signaling. Select one for the transmission of SRS, and stop the transmission of other unselected SRS periods.

In addition, when the SRS resource set includes multiple SRS resources, the second communication node does not expect that the periods of the multiple SRS resources are different, that is, it is expected that the multiple SRS resources are configured with the same period.

In the above embodiment, the first communication node configures the SRS resource set based on the use of the SRS resource set, by configuring resource type, resource quantity, power control parameters, etc., and triggering aperiodic SRS transmission through the SRS request field or SRI field of the downlink control information, On this basis, the second communication node sends the SRS through the configured SRS resource set, which improves the flexibility of signal transmission and the reliability of communication.

The embodiment of the present application also provides a transmission device. Fig. 3 is a schematic structural diagram of a transmission device provided by an embodiment. As shown in FIG. 3, the transmission device includes: a configuration module 310 and a signal receiving module 320.

The configuration module 310 is configured to configure a sounding reference signal SRS resource set, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

The signal receiving module 320 is configured to receive the SRS sent by the second communication node according to the SRS resource set.

In this embodiment, the SRS resource set is configured based on the purpose of the SRS resource set, and on this basis, the SRS sent by the second communication node through the configured SRS resource set is received, thereby improving the flexibility of signal transmission and the reliability of communication.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.

In an embodiment, the bandwidth or resource block locations corresponding to the first resource set and the second resource set are the same;

The quasi-colocation relationship between the first resource set and the second resource set is at least one of type A, type B, type C, and type D.

In an embodiment, the number of SRS resources centrally configured for the first resource is equal to the number of SRS resources centrally configured for the second resource;

The number of SRS resources in one time slot configured in the first resource set is equal to the number of SRS resources in the corresponding time slot configured in the second resource set.

In an embodiment, the spatial relationship information of the first resource set is the same as the spatial relationship information of the second resource set.

In an embodiment, the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

In an embodiment, it further includes:

The trigger module is configured to trigger the second communication node to send aperiodic SRS on the target time slot through the SRS request field of the downlink control information, where the target time slot is the first valid time slot counted from the reference time slot , Or the k+1th valid time slot counted from the reference time slot, k is 0 or a positive integer, or the kth valid time slot counted from the reference time slot, k is a positive integer;

The reference for the time slot n and the product of the first parameter value is rounded down to the corresponding time slot, the time slot corresponding to the n trigger aperiodic SRS, [mu] 2 for the first parameter of power and _SRS 2 The ratio of μ _{PDCCH to} the power, μ _SRS is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

In an embodiment, the effective time slot includes at least one of the following:

There are available uplink symbols in the time slot for transmission of all SRS resources in the SRS resource set, and a time slot that meets the minimum time requirement between the PDCCH that triggers the aperiodic SRS and the transmission of all SRS resources in the SRS resource set;

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

In an embodiment, the power control parameter configured in the first resource set is the same as the power control parameter configured in the second resource set;

The power control parameters include: transmission power, path loss compensation, and path loss.

In an embodiment, the difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

In an embodiment, it further includes:

The indication module is configured to indicate the second communication node from the nearest one through the scheduling request indication field in the PDCCH when the resource type corresponding to the first resource set is periodic resources and the resource type corresponding to the second resource set is aperiodic resources The SRS resource is determined in the resource set, where the nearest resource set is the first resource set or the second resource set closest to the time slot where the PDCCH is located.

In an embodiment, when the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resources Trigger status, periodic SRS resource trigger status, semi-persistent SRS resource trigger status, aperiodic SRS resource trigger status list, periodic SRS resource trigger status list, semi-persistent SRS resource trigger status list.

In an embodiment, the method further includes: when multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic resources, using downlink control information or medium access control layer control unit MAC CE signaling Instruct the second communication node to select an SRS resource set, and stop or cancel the sending of other SRS resource sets.

For the transmission device proposed in this embodiment, for technical details that are not described in detail in this embodiment, reference may be made to any of the above-mentioned embodiments, and this embodiment has the same beneficial effects as executing the transmission method applied to the first communication node.

The embodiment of the present application also provides a transmission device. Fig. 4 is a schematic structural diagram of a transmission device provided by an embodiment. As shown in FIG. 4, the transmission device includes: a configuration receiving module 410 and a signal sending module 420.

The configuration receiving module 410 is configured to receive configuration information of the SRS resource set of the first communication node;

The signal sending module 420 is configured to send the SRS according to the configuration information of the SRS resource set, and the use of the SRS resource set is beam management, codebook, non-codebook, or antenna switching.

In this embodiment, the SRS resource set is configured for different purposes. On this basis, the SRS is sent according to the configuration information of the SRS resource set, thereby improving the flexibility of signal transmission and the reliability of communication.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.

In an embodiment, the bandwidth or resource block locations corresponding to the first resource set and the second resource set are the same;

The quasi-colocation relationship between the first resource set and the second resource set is at least one of type A, type B, type C, and type D.

In an embodiment, the second communication node expects that the number of SRS resources configured in the first resource set is equal to the number of SRS resources configured in the second resource set;

The second communication node expects that the number of SRS resources in one time slot configured in the first resource set is equal to the number of SRS resources in the corresponding time slot configured in the second resource set.

In an embodiment, the second communication node expects that the spatial relationship information of the first resource set and the spatial relationship information of the second resource set are the same.

In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

In an embodiment, it further includes: a first receiving module configured to receive trigger information; the trigger information is indicated by the first communication node through the SRS request field of the downlink control information, and the trigger information is used to trigger the second communication node Aperiodic SRS is sent on the target time slot, where the target time slot is the first valid time slot counting from the reference time slot, or the k+1 valid time slot counting from the reference time slot , K is 0 or a positive integer, or the kth effective time slot counted from the reference time slot, and k is a positive integer;

The reference for the time slot n and the product of the first parameter value is rounded down to the corresponding time slot, the time slot corresponding to the n trigger aperiodic SRS, [mu] 2 for the first parameter of power and _SRS 2 The ratio of μ _{PDCCH to} the power, μ _SRS is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

In an embodiment, the effective time slot includes at least one of the following:

There are available uplink symbols in the time slot for transmission of all SRS resources in the SRS resource set, and a time slot that meets the minimum time requirement between the PDCCH that triggers the aperiodic SRS and the transmission of all SRS resources in the SRS resource set;

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

In an embodiment, the second communication node expects that the power control parameters of the first resource set configuration and the power control parameters of the second resource set configuration are the same;

The power control parameters include: transmission power, path loss compensation, and path loss.

In an embodiment, the difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

In an embodiment, it further includes:

The second receiving module is configured to receive trigger information; when the resource type corresponding to the first resource set is a periodic resource and the resource type corresponding to the second resource set is a non-periodic resource, the trigger information is passed by the first communication node The scheduling request indication field in the PDCCH indicates that the trigger information is used to instruct the second communication node to determine the SRS resource from the nearest resource set, where the nearest resource set is the first resource closest to the time slot where the PDCCH is located Set or second resource set.

In an embodiment, when the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resources Trigger status, periodic SRS resource trigger status, semi-persistent SRS resource trigger status, aperiodic SRS resource trigger status list, periodic SRS resource trigger status list, semi-persistent SRS resource trigger status list.

In an embodiment, it further includes: in the case where multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic, the first communication node instructs the first communication node through downlink control information or MAC CE signaling. The second communication node selects an SRS resource set and stops or cancels the sending of other SRS resource sets.

For the transmission device proposed in this embodiment, for technical details not described in detail in this embodiment, reference may be made to any of the above-mentioned embodiments, and this embodiment has the same beneficial effects as executing the transmission method applied to the second communication node.

The embodiment of the present application also provides a first communication node. The transmission method applied to the first communication node may be executed by a transmission device, which may be implemented by software and/or hardware, and integrated in the first communication node. The first communication node is a network side, such as a base station.

Fig. 5 is a schematic structural diagram of a first communication node provided by an embodiment. As shown in FIG. 5, a first communication node provided in this embodiment includes: a processor 510 and a storage device 520. There may be one or more processors in the first communication node. In FIG. 5, one processor 510 is taken as an example. The processor 510 and the storage device 520 in the device may be connected by a bus or other means. In FIG. Take the bus connection as an example.

The one or more programs are executed by the one or more processors 510, so that the one or more processors implement the transmission method applied to the first communication node in any of the foregoing embodiments.

The storage device 520 in the first communication node is used as a computer-readable storage medium and can be used to store one or more programs. The programs can be software programs, computer-executable programs, and modules, as in the embodiment of the present invention. The program instructions/modules corresponding to the method (for example, the modules in the transmission device shown in FIG. 3 include: a configuration module 310 and a signal receiving module 320). The processor 510 executes various functional applications and data processing of the first communication node by running the software programs, instructions, and modules stored in the storage device 520, that is, implements the transmission method applied to the first communication node in the above method embodiment .

The storage device 520 mainly includes a storage program area and a storage data area. The storage program area can store an operating system and an application program required by at least one function; the storage data area can store data created according to the use of the device, etc. (as in the above implementation) Example configuration information, SRS resource set, etc.). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some examples, the storage device 520 may include memories remotely provided with respect to the processor 510, and these remote memories may be connected to the first communication node through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

Moreover, when one or more programs included in the first communication node are executed by the one or more processors 510, the following operations are implemented: a sounding reference signal SRS resource set is configured, and the use of the SRS resource set is beam Management, codebook, non-codebook or antenna switching; receiving the SRS sent by the second communication node according to the SRS resource set.

For the first communication node proposed in this embodiment, for technical details that are not described in detail in this embodiment, reference may be made to any of the foregoing embodiments, and this embodiment has the same beneficial effects as executing the transmission method applied to the first communication node.

The embodiment of the present application also provides a second communication node. The transmission method applied to the second communication node may be executed by a transmission device, which may be implemented by software and/or hardware, and integrated in the second communication node. The second communication node is a user terminal.

Fig. 6 is a schematic structural diagram of a second communication node provided by an embodiment. As shown in FIG. 6, a second communication node provided in this embodiment includes a processor 610 and a storage device 620. There may be one or more processors in the second communication node. In FIG. 6, one processor 610 is taken as an example. The processor 610 and the storage device 620 in the device may be connected by a bus or other methods. In FIG. Take the bus connection as an example.

The one or more programs are executed by the one or more processors 610, so that the one or more processors implement the transmission method applied to the second communication node in any of the foregoing embodiments.

The storage device 620 in the second communication node is used as a computer-readable storage medium and can be used to store one or more programs. The programs can be software programs, computer-executable programs, and modules, as in the embodiment of the present invention. The program instructions/modules corresponding to the method (for example, the modules in the transmission device shown in FIG. 4 include: a configuration receiving module 410 and a signal sending module 420). The processor 610 executes various functional applications and data processing of the second communication node by running the software programs, instructions, and modules stored in the storage device 620, that is, implements the transmission method applied to the second communication node in the above method embodiment .

The storage device 620 mainly includes a storage program area and a storage data area. The storage program area can store an operating system and an application program required by at least one function; the storage data area can store data created according to the use of the device, etc. (as in the above implementation) Example configuration information, SRS resource set, etc.). In addition, the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some examples, the storage device 620 may include memories remotely provided with respect to the processor 610, and these remote memories may be connected to the second communication node through a network. Examples of the aforementioned networks include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

Moreover, when one or more programs included in the second communication node are executed by the one or more processors 610, the following operations are implemented: receiving configuration information of the SRS resource set of the first communication node, and the SRS resource The purpose of the set is beam management, codebook, non-codebook or antenna switching; SRS is sent according to the configuration information of the SRS resource set.

For the second communication node proposed in this embodiment, for technical details that are not described in detail in this embodiment, reference may be made to any of the foregoing embodiments, and this embodiment has the same beneficial effects as executing the transmission method applied to the second communication node.

The embodiment of the present application also provides a storage medium containing computer-executable instructions. When the computer-executable instructions are executed by a computer processor, they are used to execute a transmission method applied to a first communication node or applied to a second communication node.

Based on the above description of the implementation manners, those skilled in the art can understand that this application can be implemented by software and general hardware, or can be implemented by hardware. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), Random Access Memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute any of this application The method described in the embodiment.

The above are only exemplary embodiments of the present application, and are not used to limit the protection scope of the present application.

The block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored on the memory. The memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read only memory (ROM), random access memory (RAM), optical storage devices and systems (digital multi-function optical discs) (Digital Video Disc, DVD) or Compact Disk (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.

In summary, this application includes at least the following items:

1. A transmission method applied to a first communication node, including:

Configuring a sounding reference signal SRS resource set, where the use of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

Receiving the SRS sent by the second communication node according to the SRS resource set.

2. The method according to item 1, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.

3. The method according to item 2, wherein the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same;

The quasi-colocation relationship between the first resource set and the second resource set is at least one of type A, type B, type C, and type D.

4. The method according to item 2, wherein the number of SRS resources centrally configured in the first resource is equal to the number of SRS resources centrally configured in the second resource;

The number of SRS resources in one time slot configured in the first resource set is equal to the number of SRS resources in the corresponding time slot configured in the second resource set.

5. According to the method described in item 2,

The spatial relationship information of the first resource set is the same as the spatial relationship information of the second resource set.

6. The method according to item 1, wherein the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

7. The method according to item 6, further comprising:

The SRS request field of the downlink control information triggers the second communication node to send an aperiodic SRS on the target timeslot, where the target timeslot is the first valid timeslot counted from the reference timeslot, or is the reference time slot. The k+1th valid time slot at which the time slot starts to count, k is 0 or a positive integer, or the kth valid time slot counting from the reference time slot, and k is a positive integer;

The reference for the time slot n and the product of the first parameter value is rounded down to the corresponding time slot, the time slot corresponding to the n trigger aperiodic SRS, [mu] 2 for the first parameter of power and _SRS 2 The ratio of μ _{PDCCH to} the power, μ _SRS is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

8. The method according to item 7, wherein the effective time slot includes at least one of the following:

When there are available uplink symbols in the time slot for sending all SRS resources in the SRS resource set, and meeting the minimum time requirement between the physical downlink control channel PDCCH that triggers the aperiodic SRS and the sending of all SRS resources in the SRS resource set Gap

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

9. The method according to item 2, wherein the power control parameter configured in the first resource set is the same as the power control parameter configured in the second resource set;

The power control parameters include: transmission power, path loss compensation, and path loss.

10. According to the method described in item 9,

The difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

11. The method according to item 2, further comprising:

In the case that the resource type corresponding to the first resource set is periodic resources and the resource type corresponding to the second resource set is non-periodic resources, the scheduling request indication field in the PDCCH is used to instruct the second communication node to determine the SRS resource from the nearest resource set , Wherein the nearest resource set is the first resource set or the second resource set nearest to the time slot where the PDCCH is located.

12. The method according to item 1, further comprising:

In the case that the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resource trigger state, periodic SRS resource Trigger status, semi-persistent SRS resource trigger status, aperiodic SRS resource trigger status list, periodic SRS resource trigger status list, semi-persistent SRS resource trigger status list.

13. The method according to item 1, further comprising:

When multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic resources, the second communication node is instructed to select an SRS through downlink control information or MAC CE signaling of the medium access control layer control unit Resource set, and stop or cancel the sending of other SRS resource sets.

14. A transmission method applied to a second communication node, including:

Receiving configuration information of an SRS resource set of the first communication node, where the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

The SRS is sent according to the configuration information of the SRS resource set.

15. The method according to item 14, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.

16. According to the method described in item 15,

Bandwidths or resource block locations corresponding to the first resource set and the second resource set are the same;

The quasi-colocation relationship between the first resource set and the second resource set is at least one of type A, type B, type C, and type D.

17. The method according to item 15,

The second communication node expects that the number of SRS resources configured in the first resource set is equal to the number of SRS resources configured in the second resource set;

The second communication node expects that the number of SRS resources in one time slot configured in the first resource set is equal to the number of SRS resources in the corresponding time slot configured in the second resource set.

18. According to the method described in item 15,

The second communication node expects that the spatial relationship information of the first resource set and the spatial relationship information of the second resource set are the same.

19. The method according to item 14, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.

20. The method according to item 19, further comprising:

Receive trigger information;

The trigger information is indicated by the first communication node through the SRS request field of the downlink control information, and the trigger information is used to trigger the second communication node to send an aperiodic SRS on a target time slot, where the target time slot is a slave The first valid time slot counted from the reference time slot, or the k+1 valid time slot counted from the reference time slot, k is 0 or a positive integer, or the kth valid time slot counted from the reference time slot Effective time slot, k is a positive integer;

The reference for the time slot n and the product of the first parameter value is rounded down to the corresponding time slot, the time slot corresponding to the n trigger aperiodic SRS, [mu] 2 for the first parameter of power and _SRS 2 The ratio of μ _{PDCCH to} the power, μ _SRS is the sub-carrier interval configuration for triggering aperiodic SRS; μ _PDCCH is the sub-carrier interval configuration of the PDCCH carrying trigger information.

21. The method according to item 20, the effective time slot includes at least one of the following:

There are available uplink symbols in the time slot for transmission of all SRS resources in the SRS resource set, and a time slot that meets the minimum time requirement between the PDCCH that triggers the aperiodic SRS and the transmission of all SRS resources in the SRS resource set;

There are available uplink symbols in the time slot for all SRS resource transmissions in the SRS resource set, and meet the minimum time requirement between the PDCCH that triggers aperiodic SRS and all SRS transmissions in the SRS resource set, except for periodic SRS transmissions Time slots other than time slots.

22. According to the method described in item 15,

The second communication node expects that the power control parameter configured in the first resource set is the same as the power control parameter configured in the second resource set;

The power control parameters include: transmission power, path loss compensation, and path loss.

23. According to the method described in item 22,

The difference between the transmit power of the first resource set and the transmit power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.

24. The method according to item 15, further comprising:

Receive trigger information;

When the resource type corresponding to the first resource set is periodic resources and the resource type corresponding to the second resource set is aperiodic resources, the trigger information is indicated by the first communication node through the scheduling request indication field in the PDCCH, and The trigger information is used to instruct the second communication node to determine the SRS resource from the nearest resource set, where the nearest resource set is the first resource set or the second resource set closest to the time slot where the PDCCH is located.

25. According to the method described in item 14,

In the case that the resource type corresponding to the SRS resource set is at least one of periodic resources and semi-persistent resources, the parameters of the configured SRS resource set include at least one of the following: aperiodic SRS resource trigger state, periodic SRS resource Trigger status, semi-persistent SRS resource trigger status, aperiodic SRS resource trigger status list, periodic SRS resource trigger status list, semi-persistent SRS resource trigger status list.

26. The method according to item 14, further comprising:

When multiple SRS resource sets are configured and the resource types of the multiple SRS resource sets are all periodic, the first communication node instructs the second communication node to select an SRS resource set through downlink control information or MAC CE signaling And stop or cancel the sending of other SRS resource sets.

27. A transmission device, comprising:

A configuration module, configured to configure a sounding reference signal SRS resource set, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

The signal receiving module is configured to receive the SRS sent by the second communication node according to the SRS resource set.

28. A transmission device, comprising:

A configuration receiving module, configured to receive configuration information of the SRS resource set of the first communication node;

The signal sending module is configured to send the SRS according to the configuration information of the SRS resource set, and the use of the SRS resource set is beam management, codebook, non-codebook or antenna switching.

29. A first communication node, comprising:

One or more processors;

Storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the transmission method according to any one of items 1-13.

30. A second communication node, comprising:

One or more processors;

Storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the transmission method according to any one of items 14-26.

31. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the transmission method as described in any one of items 1-13 or as described in any one of items 14-26 Transmission method.

Claims (10)

1. A transmission method, applied to a first communication node, includes:

   Configuring a sounding reference signal SRS resource set, where the use of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

   Receiving the SRS sent by the second communication node according to the SRS resource set.
2. The method according to claim 1, wherein, for codebook-based transmission or non-codebook-based transmission, the SRS resource set includes a first resource set and a second resource set;

   The resource type corresponding to the first resource set is aperiodic resources, semi-persistent resources, or periodic resources;

   The resource type corresponding to the second resource set is aperiodic resources, semi-persistent resources, or periodic resources.
3. The method according to claim 1, wherein the SRS resource set includes a first resource set, and the resource type of the first resource set is a periodic resource.
4. The method according to claim 2, further comprising:

   In the case where the resource type corresponding to the first resource set is the periodic resource and the resource type corresponding to the second resource set is the aperiodic resource, it is indicated by the scheduling request indication field in the physical downlink control channel PDCCH The second communication node determines the SRS resource from the nearest resource set, where the nearest resource set is the first resource set or the second resource set closest to the time slot where the PDCCH is located.
5. A transmission method applied to a second communication node, including:

   Receiving configuration information of a sounding reference signal SRS resource set of the first communication node, where the use of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

   The SRS is sent according to the configuration information of the SRS resource set.
6. A transmission device, including:

   A configuration module, configured to configure a sounding reference signal SRS resource set, and the purpose of the SRS resource set is beam management, codebook, non-codebook, or antenna switching;

   The signal receiving module is configured to receive the SRS sent by the second communication node according to the SRS resource set.
7. A transmission device, including:

   A configuration receiving module configured to receive configuration information of a sounding reference signal SRS resource set of the first communication node, where the SRS resource set is used for beam management, codebook, non-codebook, or antenna switching;

   The signal sending module is configured to send the SRS according to the configuration information of the SRS resource set.
8. A first communication node, including:

   One or more processors;

   Storage device, set to store one or more programs;

   The one or more programs are executed by the one or more processors, so that the one or more processors implement the transmission method according to any one of claims 1-4.
9. A second communication node, including:

   One or more processors;

   Storage device, set to store one or more programs;

   The one or more programs are executed by the one or more processors, so that the one or more processors implement the transmission method according to claim 5.
10. A computer-readable storage medium that stores a computer program, which, when executed by a processor, implements the transmission method according to any one of claims 1 to 4 or the transmission method according to claim 5.

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