CN111092708A - Transmission method, transmission device, first communication node, second communication node and medium - Google Patents

Transmission method, transmission device, first communication node, second communication node and medium Download PDF

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Publication number
CN111092708A
CN111092708A CN201911090287.0A CN201911090287A CN111092708A CN 111092708 A CN111092708 A CN 111092708A CN 201911090287 A CN201911090287 A CN 201911090287A CN 111092708 A CN111092708 A CN 111092708A
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srs
resource
resource set
communication node
periodic
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Inventor
王瑜新
鲁照华
李儒岳
蒋创新
吴昊
李永
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2020/126413 priority patent/WO2021088851A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The application provides a transmission method, a transmission device, a first communication node, a second communication node and a medium. The method configures sounding reference signal SRS resource sets, wherein the SRS resource sets are used for beam management, codebook, non-codebook or antenna switching; and receiving the SRS sent by the second communication node according to the SRS resource set.

Description

Transmission method, transmission device, first communication node, second communication node and medium
Technical Field
The present application relates to wireless communication networks, for example to a transmission method, apparatus, first communication node, second communication node and medium.
Background
With the development of communication technology, data traffic demand is increasing. The first communication node may determine channel state information of the second communication node according to a Sounding Reference Signal (SRS) sent by the second communication node, and perform operations such as frequency domain selection scheduling and closed-loop power control. In the prior art, signaling configuration and signal transmission flexibility of the SRS between the first communication node and the second communication node are poor, and it cannot be guaranteed that signal transmission is effectively and accurately performed under various conditions, which affects communication reliability.
Disclosure of Invention
The application provides a transmission method, a transmission device, a first communication node, a second communication node and a medium, so as to improve the flexibility of signal transmission and the reliability of communication.
The embodiment of the application provides a transmission method, which is applied to a first communication node and comprises the following steps:
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 the SRS sent by the second communication node according to the SRS resource set.
The embodiment of the present application further provides a transmission method, applied to a second communication node, including:
receiving configuration information of an SRS resource set of a first communication node, wherein the SRS resource set is used for beam management, codebook, non-codebook or antenna switching;
and sending the SRS according to the configuration information of the SRS resource set.
An embodiment of the present application further provides a transmission device, including:
a configuration module configured to configure a Sounding Reference Signal (SRS) resource set, the SRS resource set being used for beam management, codebook, non-codebook or antenna switching;
a signal receiving module, configured to receive an SRS sent by a second communication node according to the SRS resource set, where an embodiment of the present application further provides a transmission apparatus, including:
a configuration receiving module configured to receive SRS resource set configuration information of a first communication node;
and the signal sending module is used for sending the SRS according to the configuration information of the SRS resource set, and the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
An embodiment of the present application further provides a first communication node, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method as described above for the first communication node.
An embodiment of the present application further provides a second communication node, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method as described above for the second communication node.
An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the transmission method described above.
Drawings
Fig. 1 is a flowchart of a transmission method applied to a first communication node according to an embodiment;
fig. 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 according to an embodiment;
fig. 4 is a schematic structural diagram of another transmission device according to an embodiment;
fig. 5 is a schematic structural diagram of a first communication node according to an implementation;
fig. 6 is a schematic structural diagram of a second communication node according to an implementation.
Detailed Description
The present application will be described with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
In Release 10 standard (LTE-a version 10) of Long Term Evolution-Advanced (LTE-a), a non-precoded SRS, i.e., an SRS specific to an antenna is used in Uplink communication, and a Reference Signal (DMRS) for DeModulation of a Physical Uplink Shared Channel (PUSCH) is precoded. The first communication node can estimate the original CSI of the uplink by receiving the non-precoded SRS, and the precoded DMRS cannot enable the first communication node to estimate the original CSI of the uplink. In this case, when the second communication node transmits the non-precoded SRS using multiple antennas, the required SRS resources are increased, which results in a decrease in the number of second communication nodes that can be simultaneously multiplexed in the system. The second communication node may send the SRS through two triggering modes, i.e., a higher layer signaling (also referred to as triggering through trigger type 0) and Downlink Control Information (also referred to as triggering through trigger type 1), where the triggering mode based on the higher layer signaling is a periodic SRS and the triggering mode based on Downlink Control Information (DCI) is an aperiodic SRS. A Physical Downlink Control Channel (PDCCH) is used to carry DCI, where the DCI may include uplink and downlink scheduling information and uplink power Control information. The LTE-A Release 10 is added with a mode of non-periodically sending the SRS, thereby improving the utilization rate of the SRS resource to a certain extent and improving the flexibility of resource scheduling.
In the release 15 standard of New Radio (NR), the SRS has multiple uses, and in this case, signaling configuration and signal transmission flexibility of the SRS between the first communication node and the second communication node in the prior art are poor, which cannot ensure that signal transmission is performed effectively and accurately under various conditions, and communication reliability is affected. For example, in a case that usage parameters (usage) of SRS resource sets are configured as codebooks (codebooks) or non-codebooks, a first communication node may configure two SRS resource sets for a second communication node, where the two SRS resource sets may be periodic or aperiodic, and how the parameters in the two SRS resource sets are associated and configured affects reliable transmission of signals. For another example, in a case that usage parameters of SRS resource sets are configured as a codebook or a non-codebook, if a first communication node only configures a periodic SRS resource set for a second communication node, and the first communication node wants to trigger the second communication node to transmit an aperiodic SRS through Downlink Control Information (DCI) and the like, how the periodic SRS resource set is configured affects determining a transmission slot of the aperiodic SRS and also affects reliable transmission of signals.
In this embodiment, the first communication Node refers to a network side, a base station, a serving Node, and the like, for example, an evolved Node B (e-Node-B, eNB) may configure a second communication Node device through downlink control information, and the second communication Node refers to a terminal side, a User Equipment (User Equipment), and the like, and may receive DCI control or receive configuration of a higher layer signaling.
Fig. 1 is a flowchart of a transmission method according to an embodiment, which is applicable to a first communication node. As shown in fig. 1, the method provided by the present embodiment includes step 110 and step 120.
In step 110, a sounding reference signal, SRS, resource set is configured, and the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
In step 120, an SRS transmitted by the second communication node according to the set of SRS resources is received.
A Sounding Reference Signal (SRS) is a Signal used between the second communication node device and the first communication node device to measure the Channel State Information (CSI). In a long term evolution system, a second communication node sends an uplink SRS on the last data symbol of a sending subframe at regular time according to parameters such as a frequency band, a frequency domain position, a sequence cyclic shift, a period, subframe offset and the like indicated by a first communication node. And 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, closed-loop power control and the like according to the obtained CSI.
In this embodiment, the first communication node configures the SRS resource set based on the usage of the SRS resource set, and receives the SRS sent by the second communication node through the configured SRS resource set on this basis, thereby improving the flexibility of signal transmission and the reliability of communication.
In an embodiment, for codebook-based or non-codebook based transmissions, the set of SRS resources comprises a first set of resources and a second set of resources; the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource; the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
In this embodiment, usage parameters (usages) of SRS resource sets are configured as codebooks or non-codebooks, in this case, a first communication node configures two SRS resource sets for a second communication node, and resource types (resource types) corresponding to the two SRS resource sets may be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures the second communication node with SRS resource set 0 and SRS resource set 1, SRS resource set 0 may be configured as an aperiodic resource, and SRS resource set 1 may be configured as a periodic resource.
In an embodiment, the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same; a Quasi-Co-Location (QCL) relationship of the first resource set and the second resource set is at least one of type A, type B, type C, and type D.
For example, the first communication node configures an SRS Resource set 0 and an SRS Resource set 1 for the second communication node, the SRS Resource set 0 is configured as an aperiodic Resource, the SRS Resource set 1 is configured as a periodic Resource, the SRS Resource set 0 and the SRS Resource set 1 have the same bandwidth or the same Resource Block (RB) location, and the SRS Resource set 0 and the SRS Resource set 1 have one or more of QCLType-a, QCL Type-B, QCL Type-C, and QCL Type-D 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 is equal to the number of SRS resources in a corresponding time slot configured in the second resource set. For example, the first communication node configures an SRS resource set 0 and an SRS resource set 1 for the second communication node, the number of SRS resources in the SRS resource set 0 is equal to the number of SRS resources in the SRS resource set 1, and the number of SRS resources in corresponding slots in the two SRS resource sets is also equal.
In an embodiment, the Spatial relationship information (Spatial relationship 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 an SRS resource set 0 and an SRS resource set 1 for the second communication node, and spatial relationship information of the SRS resource set 0 and the SRS resource set 1 is the same.
In an embodiment, the SRS resource sets include a first resource set, and the resource type of the first resource set is a periodic resource.
In this embodiment, under the condition that the usage parameter of the SRS resource set is configured as a codebook, the first communication node only configures one resource set, that is, a periodic SRS resource set, for the second communication node, and the first communication node may trigger the second communication node to transmit the aperiodic SRS through the SRS request field in the DCI. After detecting the SRS request field in the DCI, the second communication node may use the periodic set of SRS resources as an aperiodic set of SRS resources.
In one embodiment, the method further comprises: triggering a second communication node to send an aperiodic SRS on a target time slot through an SRS request domain of downlink control information, wherein the target time slot is the 1 st effective time slot counted from a reference time slot, or the k +1 th effective time slot counted from the reference time slot, k is 0 or a positive integer, or the k-th effective time slot counted from the reference time slot, and k is a positive integer; the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter is 2 muSRSThe power of 2 muPDCCHPower of the orderRatio of (d), muSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
In this embodiment, assuming that the UE receives DCI triggering the aperiodic SRS in the time slot n, the determining method for the time slot in which the UE transmits the aperiodic SRS includes at least one of the following:
1) at the slave
Figure BDA0002266648390000061
The 1 st valid slot of the start count transmits an aperiodic SRS resource set, where μSRSSubcarrier spacing configuration for triggered SRS,. mu.PDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
2) At the slave
Figure BDA0002266648390000071
The (k + 1) th valid slot from which counting is started transmits an aperiodic SRS resource set, where k is 0 or a positive integer. Mu.sSRSSubcarrier spacing configuration for triggered SRS,. mu.PDCCHAnd determining the value of k based on the state of the SRS request domain for the subcarrier interval configuration of the PDCCH carrying the trigger information.
Table 1 is a mapping table of SRS request fields and k values in an embodiment. As shown in table 1, when the SRS request field is 00, the k value is invalid and the aperiodic SRS is not triggered; in case the SRS request field is 01, the value of k is 0, i.e. from
Figure BDA0002266648390000072
The 1 st valid slot from which counting starts transmits the aperiodic SRS resource set.
TABLE 1 mapping relationship table of SRS request field and k value
Figure BDA0002266648390000073
3) At the slave
Figure BDA0002266648390000074
The k-th effective time slot of the starting counting sends an aperiodic SRS resource set, wherein k is a non-negative integer and muSRSSubcarrier spacing configuration for triggered SRS,. mu.PDCCHAnd determining the value of k based on the state of the SRS request domain for the subcarrier interval configuration of the PDCCH carrying the trigger information.
TABLE 2 Another mapping table of SRS request fields to k values
Figure BDA0002266648390000075
Table 2 is another mapping table of SRS request fields and k values in an embodiment. As shown in table 2, when the SRS request field is 00, the k value is invalid and the aperiodic SRS is not triggered; in case the SRS request field is 01, the value of k is 1, i.e. from
Figure BDA0002266648390000081
The 1 st valid slot from which counting starts transmits the aperiodic SRS resource set.
In one embodiment, the active time slot includes at least one of:
there is an available uplink symbol in the timeslot for sending all SRS resources in an SRS resource set, and the timeslot meets a minimum time requirement between a Physical Downlink Control Channel (PDCCH) triggering an aperiodic SRS and all SRS transmissions in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
In this embodiment, if a timeslot is an active timeslot, the timeslot satisfies: the available uplink symbols in the time slot can be used for transmitting all SRS resources in the SRS resource set, and the time slot can meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set; in some embodiments, it is further satisfied that: the slot is not the slot in which the periodic SRS is transmitted.
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 parameters include: transmit power, path loss compensation, and path loss.
In this embodiment, for codebook-based transmission or non-codebook-based transmission, when the usage parameter of the SRS is configured as a codebook or a non-codebook, the first communication node configures two SRS resource sets for the second communication node, where resource types corresponding to the two SRS resource sets may be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures the second communication node with SRS resource set 0 and SRS resource set 1, SRS resource set 0 may be configured as an aperiodic resource, and SRS resource set 1 may be configured as a periodic resource. The SRS resource set 0 and the SRS resource set 1 have the same power control parameter, and the power control parameter includes the SRS signal transmission power (alpha), path loss compensation (p0), and path loss (pathlossReferenceRS).
In this embodiment, the power control parameters in the periodic SRS resource set and the aperiodic SRS resource set are both configured to the same value by the UE.
In an embodiment, a difference between the transmission power of the first resource set and the transmission 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, a difference between the transmission power of the first resource set and the transmission power of the second resource set is a preset value. For example, the first communication node configures the second communication node with SRS resource set 0 and SRS resource set 1, SRS resource set 0 may be configured as an aperiodic resource, and SRS resource set 1 may be configured as a periodic resource. The difference between the transmission power of the periodic SRS resource set and the transmission power of the non-periodic SRS resource set is M dBm, wherein M is a predefined value, or the difference is configured by the base station through RRC signaling.
In one embodiment, the method further comprises: and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, indicating the second communication node to determine SRS resource from the nearest resource set through a scheduling request indication domain in the PDCCH, wherein the nearest resource set is the first resource set or the second resource set nearest to the time slot in which the PDCCH is located.
In this embodiment, when the usage parameter of the SRS is configured as a codebook or a non-codebook, the first communication node configures two SRS resource sets for the second communication node, for example, respectively configured as a periodic SRS resource set and a non-periodic SRS resource set, and then selects 1 SRS resource from a closest (latest) SRS resource set according to a Scheduling Request Indication (SRI) field in the PDCCH, where the closest SRS resource set is the periodic SRS resource set or the non-periodic SRS resource set closest to a time slot in which the PDCCH carrying the SRI field is located.
In an embodiment, in a case that a resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state (denoted as aperiodicSRS-resources trigger), a periodic SRS resource triggering state (denoted as periodicisrs-resources trigger), a semi-persistent SRS resource triggering state (denoted as semi-persistent SRS-resources trigger), an aperiodic SRS resource triggering state list (denoted as aperiodicSRS-resources trigger), a periodic SRS resource triggering state list (denoted as periodicisrs-resources trigger), and a semi-persistent SRS resource triggering state list (denoted as semi-persistent SRS-resources trigger).
In this embodiment, under the condition that the SRS resource set is a periodic resource and/or a semi-persistent resource, a parameter of the SRS resource set is configured to indicate a resource type and a trigger state of the SRS resource in the resource set. For example, the parameter aperiodic SRS-resource trigger in SRS resource set 1 is configured as "01", and if the state of the SRS request field in the DCI is 01, this SRS resource set 1 is triggered or selected, so as to instruct the second communication node to transmit SRS using the SRS resource set; and if the state of the parameter aperiodic SRS-resource trigger in the other SRS resource sets is not 01, indicating that the other SRS resource sets are not transmitted. That is, the second communication node transmits the SRS resource set only when the aperiodic SRS-resource trigger in the SRS resource set has the same state as the SRS request field in the DCI.
In one embodiment, the method further comprises: when a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are all periodic resources, a second communication node is instructed to select one SRS resource set through downlink Control information or Medium access Control (MAC CE) signaling, and the sending of other SRS resource sets is stopped or cancelled.
In this embodiment, a first communication node configures a plurality of SRS resource sets for a second communication node, where resource types of the plurality of SRS resource sets are all periods. In addition, the first communication node instructs, through DCI or MAC CE signaling, the second communication node to select one SRS resource set from the plurality of SRS resource sets for SRS transmission, and stops periodic SRS transmission corresponding to other unselected SRS resource sets, so as to dynamically adjust the period size of the periodic SRS according to the speed of channel change. For example, when the channel changes rapidly, selecting an SRS resource set with a small period; when the channel variation is slow, the SRS resource set with large period is selected.
In an embodiment, multiple SRS periods are configured in an SRS resource set or an SRS resource, and a first communication node instructs a second communication node to select one from the multiple SRS periods for SRS transmission through DCI or MAC CE signaling, and stops transmission of other unselected SRS periods at the same time.
In addition, when the SRS resource set includes a plurality of SRS resources, the second communication node does not expect the periods of the plurality of SRS resources to be different, that is, the plurality of SRS resources are expected to be arranged in the same period.
In the above embodiment, the first communication node configures the SRS resource set based on the usage of the SRS resource set, and triggers aperiodic SRS transmission by configuring the resource type, the resource number, the power control parameter, and the like, and by using the SRS request field or the SRI field of the downlink control information, and on this basis, receives the SRS transmitted by the second communication node through the configured SRS resource set, thereby improving the flexibility of signal transmission and the reliability of communication.
Fig. 2 is a flowchart of a transmission method according to an embodiment. The method is applicable to a second communication node. As shown in fig. 2, the method provided by the present embodiment includes steps 210 and 220.
In step 210, configuration information of an SRS resource set of the first communication node is received, where the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
In step 220, an SRS is transmitted according to the configuration information of the SRS resource set.
In this embodiment, the SRS resource set is configured based on different uses, and 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 or non-codebook based transmissions, the set of SRS resources comprises a first set of resources and a second set of resources;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
In this embodiment, usage parameters (usages) of SRS resource sets are configured as codebooks or non-codebooks, in this case, a first communication node configures two SRS resource sets for a second communication node, and resource types (resource types) corresponding to the two SRS resource sets may be any one of periodic resources, semi-persistent resources, or periodic resources. For example, the first communication node configures the second communication node with SRS resource set 0 and SRS resource set 1, SRS resource set 0 may be configured as an aperiodic resource, and SRS resource set 1 may be configured as a periodic resource.
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-co-location relationship of 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 the number of the SRS resources in one time slot configured in the first resource set to be equal to the number of the 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 expected by the first communication node satisfies the following conditions: the number of the SRS resources configured in the first resource set is equal to the number of the SRS resources configured in the second resource set, and the number of the SRS resources in the corresponding time slot is equal. In an embodiment, the second communication node expects the spatial relationship information of the first set of resources to be the same as the spatial relationship information of the second set of resources.
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 expected by the first communication node satisfies the following conditions: 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, for codebook-based transmission or non-codebook-based transmission, the SRS resource sets include a first resource set whose resource type is periodic resource.
In one embodiment, the method further comprises: receiving trigger information;
the trigger information is indicated by an SRS request field of downlink control information by a first communication node, and the trigger information is used for triggering a second communication node to transmit an aperiodic SRS in a target time slot, wherein the target time slot is the 1 st effective time slot counted from a reference time slot, or the k +1 th effective time slot counted from the reference time slot, k is 0 or a positive integer, or the k-th effective time slot counted from the reference time slot, and k is a positive integer;
the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter isMu of 2SRSThe power of 2 muPDCCHRatio of powers of μSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
In one embodiment, the active time slot includes at least one of:
the time slot is provided with available uplink symbols for sending all SRS resources in an SRS resource set, and meets the minimum time requirement between the PDCCH triggering the non-periodic SRS and all SRS sending in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
In an embodiment, the second communications node expects the power control parameters of the first resource set configuration to be the same as the power control parameters of the second resource set configuration; 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 parameter between the two expected resource sets satisfies the following conditions by means of appointment or reporting, for example: the power control parameters of the first set of resources and the power control parameters of the second set of resources are configured to be the same.
In an embodiment, a difference between the transmission power of the first resource set and the transmission power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.
In one embodiment, the method further comprises: receiving trigger information;
and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, the trigger information is indicated by the first communication node through a scheduling request indication domain in the PDCCH, and the trigger information is used for indicating the second communication node to determine SRS resource from the nearest resource set, wherein the nearest resource set is the first resource set or the second resource set which is nearest to the time slot in which the PDCCH is located.
When the resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state, a periodic SRS resource triggering state, a semi-persistent SRS resource triggering state, an aperiodic SRS resource triggering state list, a periodic SRS resource triggering state list, and a semi-persistent SRS resource triggering state list.
In one embodiment, the method further comprises: under the condition that a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are all periodic, a first communication node indicates a second communication node to select one SRS resource set through downlink control information or MAC CE signaling and stops or cancels the transmission of other SRS resource sets.
In this embodiment, a first communication node configures a plurality of SRS resource sets for a second communication node, where resource types of the plurality of SRS resource sets are all periodic resources. In addition, the first communication node instructs the second communication node to select one SRS resource set from the plurality of SRS resource sets through DCI or MAC CE signaling for SRS transmission, and stops periodic SRS transmission corresponding to other unselected SRS resource sets, so that the period size of the periodic SRS can be dynamically adjusted according to the speed of channel change. For example, when the channel changes rapidly, selecting an SRS resource set with a small period; when the channel variation is slow, the SRS resource set with large period is selected.
In an embodiment, a plurality of SRS periods are configured in an SRS resource set or an SRS resource, and a first communication node instructs a second communication node to select one from the plurality of SRS periods for SRS transmission through DCI or MAC CE signaling, and stops transmission of other unselected SRS periods.
In addition, when the SRS resource set includes a plurality of SRS resources, the second communication node does not expect the periods of the plurality of SRS resources to be different from each other, that is, it is desirable that the plurality of SRS resources are arranged at the same period.
In the above embodiment, the first communication node configures the SRS resource set based on the usage of the SRS resource set, and triggers aperiodic SRS transmission by configuring the resource type, the resource number, the power control parameter, and the like, and by using the SRS request field or the SRI field of the downlink control information, on this basis, the second communication node transmits the SRS through the configured SRS resource set, thereby improving the flexibility of signal transmission and the reliability of communication.
The embodiment of the application also provides a transmission device. Fig. 3 is a schematic structural diagram of a transmission device according to an embodiment. As shown in fig. 3, the transmission apparatus includes: a configuration module 310 and a signal receiving module 320.
A configuration module 310 configured to configure a sounding reference signal, SRS, resource set, the SRS resource set being used for beam management, codebook, non-codebook or antenna switching;
a signal receiving module 320, configured to receive an 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 usage 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, so that the flexibility of signal transmission and the reliability of communication are improved.
In an embodiment, for codebook-based or non-codebook based transmissions, the set of SRS resources comprises a first set of resources and a second set of resources;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
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-co-location relationship of 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 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 is equal to the number of SRS resources in a corresponding time slot configured in the second resource set.
In an embodiment, 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, the SRS resource sets include a first resource set, and the resource type of the first resource set is a periodic resource.
In one embodiment, the method further comprises:
a triggering module configured to trigger a second communication node to send an aperiodic SRS at a target timeslot through an SRS request field of downlink control information, where the target timeslot is a 1 st effective timeslot counted from a reference timeslot, or a k +1 th effective timeslot counted from the reference timeslot, k is 0 or a positive integer, or a k-th effective timeslot counted from the reference timeslot, and k is a positive integer;
the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter is 2 muSRSThe power of 2 muPDCCHRatio of powers of μSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
In one embodiment, the active time slot includes at least one of:
the time slot is provided with available uplink symbols for sending all SRS resources in an SRS resource set, and meets the minimum time requirement between the PDCCH triggering the non-periodic SRS and all SRS sending in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
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 parameters include: transmit power, path loss compensation, and path loss.
In an embodiment, a difference between the transmission power of the first resource set and the transmission power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.
In one embodiment, the method further comprises:
and the indicating module is configured to indicate the second communication node to determine the SRS resource from a nearest resource set through a scheduling request indication field in the PDCCH 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, where the nearest resource set is the first resource set or the second resource set closest to the time slot in which the PDCCH is located.
In an embodiment, in a case that a resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state, a periodic SRS resource triggering state, a semi-persistent SRS resource triggering state, an aperiodic SRS resource triggering state list, a periodic SRS resource triggering state list, and a semi-persistent SRS resource triggering state list.
In one embodiment, the method further comprises: and under the condition that a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are periodic resources, instructing a second communication node to select one SRS resource set through downlink control information or media access control (MAC CE) signaling, and stopping or canceling the transmission of other SRS resource sets.
The transmission apparatus proposed by the present embodiment is the same as the transmission method applied to the first communication node proposed by the above embodiment, and the technical details not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same advantageous effects as the transmission method applied to the first communication node.
The embodiment of the application also provides a transmission device. Fig. 4 is a schematic structural diagram of a transmission device according to an embodiment. As shown in fig. 4, the transmission apparatus includes: a receiving module 410 and a signal transmitting module 420 are configured.
A configuration receiving module 410 configured to receive SRS resource set configuration information of the first communication node;
the signal sending module 420 is configured to send an SRS according to the configuration information of the SRS resource set, where the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
In this embodiment, the SRS resource set is configured based on different uses, and 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 or non-codebook based transmissions, the set of SRS resources comprises a first set of resources and a second set of resources;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
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-co-location relationship of 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 the number of the SRS resources in one time slot configured in the first resource set to be equal to the number of the SRS resources in the corresponding time slot configured in the second resource set.
In an embodiment, the second communication node expects the spatial relationship information of the first set of resources to be the same as the spatial relationship information of the second set of resources.
In an embodiment, for codebook-based transmission or non-codebook-based transmission, the SRS resource sets include a first resource set whose resource type is periodic resource.
In one embodiment, the method further comprises: the first receiving module is used for receiving the trigger information; the trigger information is indicated by an SRS request field of downlink control information by a first communication node, and the trigger information is used for triggering a second communication node to transmit an aperiodic SRS in a target time slot, wherein the target time slot is the 1 st effective time slot counted from a reference time slot, or the k +1 th effective time slot counted from the reference time slot, k is 0 or a positive integer, or the k-th effective time slot counted from the reference time slot, and k is a positive integer;
the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter is 2 muSRSThe power of 2 muPDCCHRatio of powers of μSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
In one embodiment, the active time slot includes at least one of:
the time slot is provided with available uplink symbols for sending all SRS resources in an SRS resource set, and meets the minimum time requirement between the PDCCH triggering the non-periodic SRS and all SRS sending in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
In an embodiment, the second communications node expects the power control parameters of the first resource set configuration to be the same as the power control parameters of the second resource set configuration;
the power control parameters include: transmit power, path loss compensation, and path loss.
In an embodiment, a difference between the transmission power of the first resource set and the transmission power of the second resource set is a preset value, or is configured by the first communication node through radio resource control signaling.
In one embodiment, the method further comprises:
the second receiving module is used for receiving the trigger information; and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, the trigger information is indicated by the first communication node through a scheduling request indication domain in the PDCCH, and the trigger information is used for indicating the second communication node to determine SRS resource from the nearest resource set, wherein the nearest resource set is the first resource set or the second resource set which is nearest to the time slot in which the PDCCH is located.
In an embodiment, in a case that a resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state, a periodic SRS resource triggering state, a semi-persistent SRS resource triggering state, an aperiodic SRS resource triggering state list, a periodic SRS resource triggering state list, and a semi-persistent SRS resource triggering state list.
In one embodiment, the method further comprises: under the condition that a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are all periodic, a first communication node indicates a second communication node to select one SRS resource set through downlink control information or MAC CE signaling and stops or cancels the transmission of other SRS resource sets.
The transmission apparatus proposed by the present embodiment is the same as the transmission method applied to the second communication node proposed by the above embodiment, and the technical details not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same beneficial effects as the transmission method applied to the second communication node.
The embodiment of the application also provides a first communication node. The transmission method applied to the first communication node may be performed by a transmission apparatus, which may be implemented in 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 according to an embodiment. As shown in fig. 5, the first communication node provided in this embodiment includes: a processor 310 and a storage 320. The number of the processors in the first communication node may be one or more, fig. 5 illustrates one processor 310, the processor 310 and the storage device 320 in the apparatus may be connected by a bus or in other manners, and fig. 5 illustrates the connection by a bus.
The one or more programs are executable by the one or more processors 310 to cause the one or more processors to implement the transmission method of any of the embodiments described above as applied to the first communication node.
The storage device 320 in the first communication node is used as a computer-readable storage medium for storing one or more programs, which may be software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the transmission method in the embodiment of the present invention (for example, the modules in the transmission device shown in fig. 3 include the configuration module 310 and the signal receiving module 320). The processor 310 executes various functional applications and data processing of the first communication node, i.e. implements the transmission method applied to the first communication node in the above-described method embodiments, by running software programs, instructions and modules stored in the storage device 320.
The storage device 320 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the device, etc. (configuration information, SRS resource sets, etc. as in the above-described embodiments). Further, the storage 320 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 320 may further include memory located remotely from the processor 310, which may be connected to the first communication node over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
And when the one or more programs included in the first communication node are executed by the one or more processors 310, the following operations are implemented: 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 the SRS sent by the second communication node according to the SRS resource set.
The first communication node proposed by the present embodiment belongs to the same inventive concept as the transmission method applied to the first communication node proposed by the above embodiment, and technical details not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same beneficial effects as the transmission method applied to the first communication node.
The embodiment of the application also provides a second communication node. The transmission method applied to the second communication node may be performed by a transmission apparatus, which may be implemented in 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 according to an embodiment. As shown in fig. 6, the second communication node provided in this embodiment includes: a processor 410 and a storage 420. The number of the processors in the second communication node may be one or more, in fig. 6, one processor 410 is taken as an example, the processor 410 and the storage 420 in the device may be connected by a bus or in other manners, and in fig. 6, the processor is taken as an example of being connected by a bus.
The one or more programs are executed by the one or more processors 410, so that the one or more processors implement the transmission method applied to the second communication node of any of the above embodiments.
The storage device 420 in the second communication node is used as a computer-readable storage medium for storing one or more programs, which may be software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the transmission method in the embodiment of the present invention (for example, the modules in the transmission device shown in fig. 4 include the configuration receiving module 410 and the signal sending module 420). The processor 410 executes various functional applications and data processing of the second communication node, i.e. implements the transmission method applied to the second communication node in the above-described method embodiments, by running software programs, instructions and modules stored in the storage 420.
The storage device 420 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the device, etc. (configuration information, SRS resource sets, etc. as in the above-described embodiments). Further, the storage 420 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 420 may further include memory located remotely from the processor 410, which may be connected to the second communication node over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
And when the one or more programs included in the second communication node are executed by the one or more processors 410, the following operations are implemented: receiving configuration information of an SRS resource set of a first communication node, wherein the SRS resource set is used for beam management, codebook, non-codebook or antenna switching; and sending the SRS according to the configuration information of the SRS resource set.
The second communication node proposed in this embodiment belongs to the same inventive concept as the transmission method applied to the second communication node proposed in the above embodiment, and details of the technique that are not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the transmission method applied to the second communication node.
Embodiments of the present application also provide a storage medium containing computer-executable instructions for performing a transmission method applied to a first communication node or applied to a second communication node when executed by a computer processor.
Through the above description of the embodiments, those skilled in the art will appreciate that the present application can be implemented by software, general hardware, or hardware. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, and the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and the like, and includes a plurality of instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the method according to any embodiment of the present application.
The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.
Any logic flow block diagrams in the figures of this 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 may be stored on a memory. The memory may be of any type suitable to the local technical environment and may 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 versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.
The foregoing has provided by way of exemplary and non-limiting examples a detailed description of exemplary embodiments of the present application. Various modifications and adaptations to the foregoing embodiments may become apparent to those skilled in the relevant arts in view of the following drawings and the appended claims without departing from the scope of the invention. Therefore, the proper scope of the invention is to be determined according to the claims.
In summary, the present application includes at least the following items:
1. a transmission method applied to a first communication node comprises the following steps:
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 the SRS sent by the second communication node according to the SRS resource set.
2. The method of item 1, the set of SRS resources comprising a first set of resources and a second set of resources for codebook-based transmission or non-codebook-based transmission;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
3. According to the method of item 2, the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same;
the quasi-co-location relationship of the first resource set and the second resource set is at least one of type A, type B, type C and type D.
4. According to the method of item 2, 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 is equal to the number of SRS resources in a corresponding time slot configured in the second resource set.
5. According to the method of the 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 of item 1, the set of SRS resources comprising a first set of resources, a resource type of the first set of resources being a periodic resource.
7. The method of item 6, further comprising:
triggering a second communication node to send an aperiodic SRS on a target time slot through an SRS request domain of downlink control information, wherein the target time slot is the 1 st effective time slot counted from a reference time slot, or the k +1 th effective time slot counted from the reference time slot, k is 0 or a positive integer, or the k-th effective time slot counted from the reference time slot, and k is a positive integer;
the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter is 2 muSRSThe power of 2 muPDCCHRatio of powers of μSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
8. The method of item 7, the active time slot comprising at least one of:
the method comprises the steps that available uplink symbols in a time slot are used for sending all SRS resources in an SRS resource set, and the time slot meets the minimum time requirement between a physical downlink control channel PDCCH triggering an aperiodic SRS and all SRS sending in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
9. The method of item 2, wherein 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 parameters include: transmit power, path loss compensation, and path loss.
10. The method according to the item 9 in which,
and the difference value between the sending power of the first resource set and the sending power of the second resource set is a preset value, or the first communication node is configured through a radio resource control signaling.
11. The method of item 2, further comprising:
and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, indicating the second communication node to determine SRS resource from the nearest resource set through a scheduling request indication domain in the PDCCH, wherein the nearest resource set is the first resource set or the second resource set nearest to the time slot in which the PDCCH is located.
12. The method according to the item 1, wherein,
when the resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state, a periodic SRS resource triggering state, a semi-persistent SRS resource triggering state, an aperiodic SRS resource triggering state list, a periodic SRS resource triggering state list, and a semi-persistent SRS resource triggering state list.
13. The method of item 1, further comprising:
and under the condition that a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are periodic resources, instructing a second communication node to select one SRS resource set through downlink control information or media access control (MAC CE) signaling, and stopping or canceling the transmission of other SRS resource sets.
14. A transmission method applied to a second communication node comprises the following steps:
receiving configuration information of an SRS resource set of a first communication node, wherein the SRS resource set is used for beam management, codebook, non-codebook or antenna switching;
and sending the SRS according to the configuration information of the SRS resource set.
15. The method of item 14, for codebook-based or non-codebook-based transmissions, the set of SRS resources comprising a first set of resources and a second set of resources;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
16. The method according to the item 15 in which,
the bandwidth or resource block positions corresponding to the first resource set and the second resource set are the same;
the quasi-co-location relationship of 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 the item 15 in which,
the second communication node expects the number of the SRS resources configured in the first resource set to be equal to the number of the SRS resources configured in the second resource set;
the second communication node expects the number of the SRS resources in one time slot configured in the first resource set to be equal to the number of the SRS resources in the corresponding time slot configured in the second resource set.
18. The method according to the item 15 in which,
the second communication node expects the spatial relationship information of the first resource set to be the same as the spatial relationship information of the second resource set.
19. The method of item 14, for codebook-based or non-codebook-based transmissions, the set of SRS resources comprises a first set of resources whose resource type is periodic.
20. The method of item 19, further comprising:
receiving trigger information;
the trigger information is indicated by an SRS request field of downlink control information by a first communication node, and the trigger information is used for triggering a second communication node to transmit an aperiodic SRS in a target time slot, wherein the target time slot is the 1 st effective time slot counted from a reference time slot, or the k +1 th effective time slot counted from the reference time slot, k is 0 or a positive integer, or the k-th effective time slot counted from the reference time slot, and k is a positive integer;
the reference time slot is a time slot corresponding to a value obtained by rounding down the product of n and a first parameter, n corresponds to a time slot for triggering the aperiodic SRS, and the first parameter is 2 muSRSThe power of 2 muPDCCHRatio of powers of μSRSConfiguring the interval of the sub-carriers for triggering the aperiodic SRS; mu.sPDCCHAnd configuring the subcarrier interval of the PDCCH carrying the trigger information.
21. The method of item 20, the active time slot comprising at least one of:
the time slot is provided with available uplink symbols for sending all SRS resources in an SRS resource set, and meets the minimum time requirement between the PDCCH triggering the non-periodic SRS and all SRS sending in the SRS resource set;
the available uplink symbols in the time slot are used for transmitting all SRS resources in the SRS resource set, meet the minimum time requirement between the PDCCH triggering the aperiodic SRS and all SRS transmission in the SRS resource set, and are time slots except the periodic SRS transmission time slot.
22. The method according to the item 15 in which,
the second communication node expects the power control parameter of the first resource set configuration to be the same as the power control parameter of the second resource set configuration;
the power control parameters include: transmit power, path loss compensation, and path loss.
23. The method according to the item 22 in which,
and the difference value between the sending power of the first resource set and the sending power of the second resource set is a preset value, or the first communication node is configured through a radio resource control signaling.
24. The method of item 15, further comprising:
receiving trigger information;
and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, the trigger information is indicated by the first communication node through a scheduling request indication domain in the PDCCH, and the trigger information is used for indicating the second communication node to determine SRS resource from the nearest resource set, wherein the nearest resource set is the first resource set or the second resource set which is nearest to the time slot in which the PDCCH is located.
25. The method according to the item 14, wherein,
when the resource type corresponding to the SRS resource set is at least one of a periodic resource and a semi-persistent resource, the configured parameters of the SRS resource set include at least one of: an aperiodic SRS resource triggering state, a periodic SRS resource triggering state, a semi-persistent SRS resource triggering state, an aperiodic SRS resource triggering state list, a periodic SRS resource triggering state list, and a semi-persistent SRS resource triggering state list.
26. The method of item 14, further comprising:
under the condition that a plurality of SRS resource sets are configured and the resource types of the SRS resource sets are all periodic, a first communication node indicates a second communication node to select one SRS resource set through downlink control information or MAC CE signaling and stops or cancels the transmission of other SRS resource sets.
27. A transmission apparatus, comprising:
a configuration module configured to configure a Sounding Reference Signal (SRS) resource set, the SRS resource set being used for beam management, codebook, non-codebook or antenna switching;
and the signal receiving module is used for receiving the SRS sent by the second communication node according to the SRS resource set.
28. A transmission apparatus, comprising:
a configuration receiving module configured to receive SRS resource set configuration information of a first communication node;
and the signal sending module is used for sending the SRS according to the configuration information of the SRS resource set, and the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
29. A first communications node, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method of any of items 1-13.
30. A second communications node, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method of any of items 14-26.
31. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the transmission method according to any one of the items 1 to 13 or the transmission method according to any one of the items 14 to 26.

Claims (10)

1. A transmission method applied to a first communication node, comprising:
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 the SRS sent by the second communication node according to the SRS resource set.
2. The method of claim 1, wherein for codebook-based or non-codebook-based transmissions, the set of SRS resources comprises a first set of resources and a second set of resources;
the resource type corresponding to the first resource set is non-periodic resource, semi-continuous resource or periodic resource;
the resource type corresponding to the second resource set is non-periodic resource, semi-continuous resource or periodic resource.
3. The method of claim 1, wherein the set of SRS resources comprises a first set of resources, and wherein a resource type of the first set of resources is a periodic resource.
4. The method of claim 2, further comprising:
and under the condition that the resource type corresponding to the first resource set is periodic resource and the resource type corresponding to the second resource set is non-periodic resource, indicating the second communication node to determine SRS resource from the nearest resource set through a scheduling request indication domain in the PDCCH, wherein the nearest resource set is the first resource set or the second resource set nearest to the time slot in which the PDCCH is located.
5. A transmission method applied to a second communication node, comprising:
receiving configuration information of an SRS resource set of a first communication node, wherein the SRS resource set is used for beam management, codebook, non-codebook or antenna switching;
and sending the SRS according to the configuration information of the SRS resource set.
6. A transmission apparatus, comprising:
a configuration module configured to configure a Sounding Reference Signal (SRS) resource set, the SRS resource set being used for beam management, codebook, non-codebook or antenna switching;
and the signal receiving module is used for receiving the SRS sent by the second communication node according to the SRS resource set.
7. A transmission apparatus, comprising:
a configuration receiving module configured to receive SRS resource set configuration information of a first communication node;
and the signal sending module is used for sending the SRS according to the configuration information of the SRS resource set, and the SRS resource set is used for beam management, codebook, non-codebook or antenna switching.
8. A first communications node, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method of any one of claims 1-4.
9. A second communications node, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transmission method of claim 5.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the transmission method according to one of claims 1 to 4 or the transmission method according to claim 5.
CN201911090287.0A 2019-11-08 2019-11-08 Transmission method, transmission device, first communication node, second communication node and medium Pending CN111092708A (en)

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