CN114499781A

CN114499781A - Reference signal transmission method, transmitting terminal, receiving terminal, device and storage medium

Info

Publication number: CN114499781A
Application number: CN202011147300.4A
Authority: CN
Inventors: 刘正宣; 陈润华
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2022-05-13

Abstract

The embodiment of the application provides a reference signal transmission method, a transmitting terminal, a receiving terminal, a device and a storage medium, wherein the method comprises the following steps: determining a plurality of binding resources from all available reference signal resources; and sending the plurality of binding resources to a receiving end through the same antenna port at different sending moments by using the same analog beam and the same data beam so that the receiving end can perform channel measurement based on the plurality of binding resources. According to the method, the transmitting terminal, the receiving terminal, the device and the storage medium, the transmitting terminal transmits a plurality of reference signal resources in different transmitting moments through the same analog beam and the same data beam in a binding mode through the same antenna port, so that the receiving terminal can perform channel estimation according to the reference signal resources transmitted at the multiple moments, accuracy of channel estimation is improved, and data transmission performance is guaranteed.

Description

Reference signal transmission method, transmitting terminal, receiving terminal, device and storage medium

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a reference signal transmission method, a transmitting end, a receiving end, an apparatus, and a storage medium.

Background

In a mobile communication system, a network side may instruct a terminal to send a sounding Reference signal srs (sounding Reference signaling) to the network side for measurement of an uplink channel. The network side also issues a channel State Information Reference signal (CSI-RS) to the terminal for the terminal to measure the downlink channel.

However, due to the limited transmit-receive power of the terminal, especially when the terminal is located at the edge of a cell, the coverage area for transmitting the reference signal is limited, and both the SRS signal received by the network side and the CSI-RS signal received by the terminal side may be weak, which results in inaccurate estimation of the uplink and downlink channel information and affects the data transmission performance of the terminal.

Disclosure of Invention

The embodiment of the application provides a reference signal transmission method, a transmitting end, a receiving end, a device and a storage medium, which are used for solving the problems that the existing channel information estimation based on a reference signal is limited by the receiving and transmitting power of a terminal and has poor accuracy.

In a first aspect, an embodiment of the present application provides a reference signal transmission method, including:

determining a plurality of binding resources from all available reference signal resources;

and sending the plurality of binding resources to a receiving end through the same antenna port at different sending moments by using the same analog beam and the same data beam so that the receiving end can perform channel measurement based on the plurality of binding resources.

Optionally, the determining a plurality of bonding resources from all available reference signal resources includes:

determining a preset number of binding resources from all available reference signal resources based on the resource types and the time slot offset values of all available reference signal resources, wherein the preset number is an integer greater than 1.

Optionally, the determining a preset number of bundled resources from all available reference signal resources based on the resource types and slot offset values of all available reference signal resources includes:

and if the resource types of all the available reference signal resources are periodic types and/or semi-continuous types, or the resource types of all the available reference signal resources are non-periodic types, continuously presetting a number of reference signal resources in all the available reference signal resources which are arranged from small to large according to the time slot offset value as the binding resources.

Optionally, the step of using a preset number of consecutive reference signal resources in all available reference signal resources arranged from small to large according to the time slot offset value as the binding resource specifically includes:

if the reference signal resource trigger information is received, selecting a continuous preset number of reference signal resources including the reference signal resource with the minimum time slot offset value after the trigger time indicated by the reference signal resource trigger information as the binding resource from all available reference signal resources arranged from small to large according to the time slot offset value, wherein the reference signal resource with the minimum time slot offset value after the trigger time is taken as a starting point;

otherwise, selecting a continuous preset number of reference signal resources including the reference signal resource with the minimum time slot deviant in a period as the binding resource by taking the reference signal resource with the minimum time slot deviant in a period as the starting point from all the available reference signal resources which are arranged from small to large according to the time slot deviant.

if available reference signal resources with the resource type being an aperiodic type and the resource type being a periodic type exist at the same time, or available reference signal resources with the resource type being an aperiodic type and the resource type being a semi-persistent type exist at the same time, a continuous preset number of reference signal resources including at least one available reference signal resource of the aperiodic type are selected from all available reference signal resources arranged from small to large according to the time slot offset value and are used as the binding resources.

Optionally, the selecting a continuous preset number of reference signal resources including at least one non-periodic type of available reference signal resource from all available reference signal resources arranged from small to large according to the slot offset value includes:

selecting a reference signal resource with the minimum time slot offset value from all available reference signal resources arranged from small to large according to the time slot offset value as a starting point of the binding resources with the preset number, and selecting the reference signal resources with the continuous preset number, wherein the reference signal resources with the minimum time slot offset value are selected from all available reference signal resources with the non-periodic type;

or, in all available reference signal resources arranged from small to large according to the time slot offset value, taking the reference signal resource with the maximum time slot offset value in all available reference signal resources of the non-periodic type as the end point of the binding resources with the preset number, and selecting the reference signal resources with the continuous preset number including the reference signal resource with the maximum time slot offset value;

or, in all available reference signal resources arranged from small to large according to the time slot offset value, taking the reference signal resource corresponding to the middle value of the time slot offset value in all available reference signal resources of the non-periodic type as the central point of the bound resources of the preset number, and selecting the reference signal resources of the continuous preset number including the reference signal resource corresponding to the middle value of the time slot offset value.

Optionally, the reference signal resource is a sounding reference signal SRS resource, and the receiving end is a network side.

receiving binding resource configuration information sent by the network side, wherein the binding resource configuration information is at least one of Radio Resource Control (RRC) information, Media Access Control (MAC) -Control Element (CE) information and Downlink Control Information (DCI);

and determining a plurality of binding resources from all available SRS resources based on the binding resource configuration information.

Optionally, the determining, based on the bonding resource configuration information, a plurality of bonding resources from all available SRS resources includes:

and determining the SRS resource corresponding to each binding SRS resource identifier indicated by the binding resource configuration information from all available SRS resources as the binding resource.

determining a binding time interval based on the current time and a binding time threshold indicated by the binding resource configuration information, or based on a binding start time and a binding time threshold indicated by the binding resource configuration information;

and determining SRS resources with the transmission time within the binding time interval from all available SRS resources as the binding resources.

Optionally, the spatial correlation information configured by the plurality of bonding resources is independent of a channel state information reference signal CSI-RS;

or, the spatial correlation information configured by the plurality of bundled resources is associated with the CSI-RS transmitted last time before the plurality of bundled resources are transmitted.

Optionally, the reference signal resource is a channel state information reference signal CSI-RS resource, and the receiving end is a terminal.

Optionally, the spatial correlation information configured by the plurality of bundled resources is independent of a Sounding Reference Signal (SRS);

or, the spatial correlation information configured by the plurality of bundled resources is associated with the SRS transmitted last time before the plurality of bundled resources are transmitted.

Optionally, the different transmission time instants are different time slots, or different symbols in the same time slot.

In a second aspect, an embodiment of the present application provides a reference signal transmission method, including:

receiving a plurality of binding resources sent by a transmitting terminal through the same antenna port at different sending moments by using the same analog beam and the same data beam, wherein the plurality of binding resources are determined by the transmitting terminal from all available reference signal resources;

performing channel measurements based on the plurality of bonded resources.

Optionally, the reference signal resource is a sounding reference signal SRS resource, and the transmitting end is a terminal.

Optionally, the receiving and transmitting end, at different transmission time instants, sends multiple bonding resources through the same antenna port with the same analog beam and the same data beam, and before the receiving and transmitting end, further includes:

sending binding resource configuration information to the terminal, so that the terminal determines the binding resources from all available SRS resources based on the binding resource configuration information;

the binding resource configuration information is at least one of Radio Resource Control (RRC) information, Media Access Control (MAC) -Control Element (CE) information and Downlink Control Information (DCI).

Optionally, the binding resource configuration information includes a binding time threshold, or the binding time threshold and a binding start time, or a plurality of bound SRS resource identifiers.

Optionally, the reference signal resource is a channel state information reference signal CSI-RS resource, and the transmitting end is a network side.

In a third aspect, an embodiment of the present application provides a transmitting end, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the following steps when executing the program:

determining a preset number of bonding resources from all available reference signal resources based on the resource types and the time slot offset values of all available reference signal resources, wherein the preset number is an integer greater than 1.

if available reference signal resources with the resource type being an aperiodic type and available reference signal resources with the resource type being a periodic type or a semi-persistent type exist, selecting a continuous preset number of reference signal resources including the available reference signal resources with the aperiodic type from all the available reference signal resources arranged from small to large according to the time slot offset value as the binding resources.

In a fourth aspect, an embodiment of the present application provides a receiving end, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program to implement the following steps:

receiving a plurality of binding resources sent by a transmitting terminal through the same antenna port by using the same analog beam and the same data beam at different sending moments, wherein the plurality of binding resources are determined by the transmitting terminal from all available reference signal resources;

performing channel measurements based on the plurality of bonded resources.

In a fifth aspect, an embodiment of the present application provides a reference signal transmission apparatus, including:

a binding determining unit, configured to determine a plurality of binding resources from all available reference signal resources;

and the binding sending unit is used for sending the plurality of binding resources to a receiving end through the same antenna port at different sending moments by using the same analog beam and the same data beam so as to enable the receiving end to perform channel measurement based on the plurality of binding resources.

In a sixth aspect, an embodiment of the present application provides a reference signal transmission apparatus, including:

a binding receiving unit, configured to receive multiple binding resources sent by a sending end through the same antenna port at different sending times by using the same analog beam and the same data beam, where the multiple binding resources are determined by the sending end from all available reference signal resources;

a channel measurement unit, configured to perform channel measurement based on the plurality of bonding resources.

In a seventh aspect, the present application provides a non-transitory computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method as provided in the first aspect or the second aspect.

According to the reference signal transmission method, the transmitting terminal, the receiving terminal, the device and the storage medium, the transmitting terminal transmits a plurality of reference signal resources in different transmitting moments through the same analog beam and the same data beam in a binding mode through the same antenna port, so that the receiving terminal can perform channel estimation according to the reference signal resources transmitted at the plurality of moments, accuracy of channel estimation is improved, and data transmission performance is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic flowchart of a reference signal transmission method according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of SRS resource mapping provided in an embodiment of the present application;

fig. 3 is a schematic diagram of resource binding of a P-SRS or an SP-SRS according to an embodiment of the present disclosure;

fig. 4 is a schematic resource binding diagram of an a-SRS according to an embodiment of the present application;

FIG. 5 is a schematic diagram of resource binding of a P-SRS and an SP-SRS provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of resource binding of a P-SRS and an A-SRS provided in an embodiment of the present application;

FIG. 7 is a schematic resource binding diagram of a P-SRS and an A-SRS provided by another embodiment of the present application;

FIG. 8 is a schematic diagram of resource binding of a P-SRS and an A-SRS provided in another embodiment of the present application;

fig. 9 is a schematic diagram of spatial correlation information association provided in an embodiment of the present application;

fig. 10 is a flowchart illustrating a reference signal transmission method according to another embodiment of the present application;

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

fig. 12 is a schematic structural diagram of a receiving end according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a reference signal transmission apparatus according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a reference signal transmission apparatus according to another embodiment of the present application.

Detailed Description

In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In a mobile communication system, a terminal usually uses a single CSI-RS received at a single time to perform downlink channel estimation, and a network side usually uses a single SRS received at a single time to perform uplink channel estimation. However, the estimation method is limited by the transceiving power of the terminal, and particularly when the terminal is located at the edge of a cell, the coverage area of reference signal transmission is limited, and a single CSI-RS received by the terminal and a single SRS sent by the terminal may be weak, so that the estimation of uplink and downlink channel information is not accurate, and the data transmission performance of the terminal is affected. In view of the above, embodiments of the present application provide a method for transmitting a reference signal to enhance a coverage of the reference signal, so as to improve data transmission performance of a terminal.

Fig. 1 is a schematic flowchart of a reference signal transmission method provided in an embodiment of the present application, and as shown in fig. 1, an execution subject of the method is a transmitting end of reference signal transmission, and the method includes:

step 110, determining a plurality of bonding resources from all available reference signal resources.

And step 120, sending the multiple bonding resources to a receiving end through the same antenna port at different sending moments by using the same analog beam and the same data beam, so that the receiving end performs channel measurement based on the multiple bonding resources.

Here, the transmitting end may be a terminal, and correspondingly the receiving end is a network side, and the reference signal resource is a sounding reference signal SRS resource. The terminal determines a plurality of binding resources from all available SRS resources, and sends the binding resources to the network side through the same analog beam and the same data beam at different sending moments through the same antenna port, so that the network side can perform uplink channel measurement based on the binding resources.

In addition, the transmitting end can also be a network side, correspondingly, the receiving end is a terminal, and the reference signal resource is a channel state information reference signal CSI-RS resource. The network side determines a plurality of bound resources from all available CSI-RS resources, and sends the plurality of bound resources to the terminal through the same analog beam and the same data beam at different sending moments through the same antenna port, so that the terminal can perform downlink channel measurement based on the plurality of bound resources.

Specifically, in step 110, the sending end may select two or more reference signal resources from all available reference signal resources, and use each selected reference signal resource as a bonding resource, thereby obtaining two or more bonding resources. Here, the bundling resource is a reference signal resource for performing bundling transmission, and the bundling transmission refers to transmission through the same analog beam and the same data beam at the same antenna port.

The plurality of bundled resources may be part or all of all available reference signal resources, and the plurality of bundled resources may have the same or different resource types, where the resource types may specifically be a periodic type, a semi-persistent type, or an aperiodic type.

Each binding resource corresponds to a different sending time, where the different sending time may be a different time slot or a different symbol in the same time slot, and this is not specifically limited in this embodiment of the present application.

In step 120, after determining a plurality of bound resources, the transmitting end may transmit the bound resources one by one through the same analog beam and the same data beam at the same antenna port according to the transmission time corresponding to each bound resource.

Accordingly, the receiving end can receive the bonding resources one by one through the same analog beam and the same data beam at the same antenna port based on the sending time corresponding to each bonding resource, and perform joint channel estimation on the received multiple bonding resources.

According to the method provided by the embodiment of the application, the multiple reference signal resources are bound and transmitted through the same analog beam and the same data beam by the same antenna port at different transmission moments, so that a receiving end can perform channel estimation according to the reference signal resources transmitted at multiple moments, the accuracy of channel estimation is improved, and the data transmission performance is ensured.

Based on the above embodiment, step 110 includes:

determining a preset number of bonding resources from all available reference signal resources based on the resource types and the time slot offset values of all available reference signal resources, wherein the preset number is an integer larger than 1.

The preset number may be predetermined by the transmitting end and the receiving end, and is greater than 1 and less than the total number of all available reference signal resources. When selecting the binding resources from all available reference signal resources, it should be ensured that the number of the selected binding resources is equal to the preset number.

Furthermore, the selection of the bonding resource can be implemented based on the resource types and slot offset values of all available reference signal resources. For example, different binding resource selection rules may be preset corresponding to different resource types of the reference signal resource, and for example, all available reference signal resources may be arranged in a sequence from a small time slot offset value to a large time slot offset value, and a preset number of consecutive reference signal resources are preferentially selected as the binding resources when a preset number of binding resources are selected.

The resource types of the reference signal resources may be divided according to three types, namely, a periodic type, a semi-persistent type and an aperiodic type. Correspondingly, the preset number of bonding resources may be a preset number of reference signal resources of the same resource type or different resource types, and specifically may be reference signal resource bonding of the same or different periodic cycle types or the semi-persistent type, or reference signal resource bonding of a plurality of aperiodic types, or reference signal resource bonding of the periodic type and reference signal resource bonding of the semi-persistent type, or reference signal resource bonding of the periodic type and reference signal resource bonding of the non-periodic type, or reference signal resource bonding of the semi-persistent type and reference signal resource bonding of the non-periodic type, which is not specifically limited in this embodiment of the present application.

For the resource type of the reference signal resource, the SRS resource is taken as an example for description below, and the resource type classification of the CSI-RS resource is similar thereto, which is not described herein again:

in an NR (New Radio, New air interface) system, in a time domain, an existing SRS resource may be transmitted over N consecutive OFDM symbols, where N is 1,2, or 4. Fig. 2 is a schematic diagram of SRS resource mapping provided in an embodiment of the present application, and as shown in fig. 2, SRS resource 1 occupies one OFDM symbol, SRS resource 2 occupies 4 OFDM symbols, and SRS resource 3 occupies 2 OFDM symbols.

In the frequency domain, the existing SRS resources form a Comb (Comb) structure, i.e., one SRS resource is not mapped on consecutive subcarriers. The Comb structure is represented by a Comb parameter, which is equal to 2 or 4; a Comb parameter of 2 indicates that one SRS resource is mapped on every other subcarrier, such as SRS resource 1 and SRS resource 2 shown in fig. 2; the Comb parameter of 4 indicates that one SRS resource is mapped on every third subcarrier, such as SRS resource 3 shown in fig. 2.

The Periodic type of SRS is a Periodic sounding reference signal (P-SRS). All parameters of the P-SRS are configured by a high-level signaling, and the terminal periodically transmits the parameters after the parameters are configured by the high-level signaling. Since the NR system supports various subcarrier spacings, the period and offset of the SRS are configured in units of slots, as shown in table 1:

TABLE 1 SRS periodicity and offset

The Semi-persistent SRS, i.e., Semi-persistent-SRS (SP-SRS), is supported by the terminal to transmit the SP-SRS in the NR system, and all parameters of the SP-SRS are configured by high-layer signaling, which is different from the P-SRS in that although the corresponding parameters are already configured, the terminal cannot transmit the SP-SRS until receiving an activation command. Once activated, the terminal starts to transmit the SP-SRS until receiving a deactivation command sent by the network side. The SP-SRS activation and deactivation command is sent by a MAC (Medium Access Control) layer, that is, the activation and deactivation command is a MAC-CE (Medium Access Control-Control Element) command. The terminal transmission SP-SRS behavior during the active state is the same as the P-SRS transmission behavior.

The NR system also supports a terminal to send the sounding reference signal in an Aperiodic manner, and specifically, the terminal may be triggered to send the a-SRS by a 2-bit DCI (Downlink Control Information) signaling.

Based on any of the above embodiments, step 110 includes:

if the resource types of all the available reference signal resources are periodic types and/or semi-persistent types, or the resource types of all the available reference signal resources are non-periodic types, continuously presetting a number of reference signal resources in all the available reference signal resources which are arranged from small to large according to the time slot offset value, and taking the reference signal resources as binding resources.

Specifically, when the resource types of all the available reference signal resources are all periodic types, or all the available reference signal resources are semi-persistent types, or only include periodic types and semi-persistent types, or all the available reference signal resources are non-periodic types, all the available reference signal resources may be ordered according to the sequence of the slot offset values from small to large, and M consecutive reference signal resources are bundled, so as to determine M bundled resources. Here, M is a preset number.

Based on any of the above embodiments, in the case that the resource types of all available reference signal resources are of a periodic type and/or a semi-persistent type, or the resource types of all available reference signal resources are of an aperiodic type, step 110 includes:

if the reference signal resource trigger information is received, selecting a continuous preset number of reference signal resources including the reference signal resource with the minimum time slot offset value after the trigger time indicated by the reference signal resource trigger information as binding resources from all available reference signal resources arranged from small to large according to the time slot offset value by taking the reference signal resource with the minimum time slot offset value after the trigger time as a starting point;

otherwise, selecting a continuous preset number of reference signal resources including the reference signal resource with the minimum time slot offset value in a period as binding resources from all available reference signal resources which are arranged from small to large according to the time slot offset value, wherein the reference signal resource with the minimum time slot offset value in the period is taken as a starting point.

Specifically, when all available reference signal resources are of the same resource type, or are of a periodic type and a semi-persistent type, the transmitting end may determine, according to whether there is a triggered reference signal resource at present, a starting point of a bonding resource from all available reference signal resources arranged in order from a small value to a large value according to a slot offset value, and further determine all bonding resources.

Further, the judgment of whether the triggered reference signal resource exists at present may be based on whether the reference signal resource trigger information is received, where the reference signal resource trigger information is used to trigger the reference signal resource, and the reference signal resource trigger information may be specifically used to trigger the reference signal resources of the semi-persistent type and the aperiodic type. When the reference signal resource is the SRS, the semi-continuous SRS can be triggered by the reference signal resource triggering information of the MAC-CE type, and the non-periodic SRS can be triggered by the reference signal resource triggering information of the DCI type; when the reference signal resource is a CSI-RS, the semi-persistent CSI-RS may be triggered by the MAC-CE type reference signal resource trigger Information, and the aperiodic CSI-RS may be triggered by the UCI (Uplink Control Information) type reference signal resource trigger Information.

For the determination of the starting point, if the triggered reference signal resource exists, the reference signal resource with the minimum time slot offset value after the triggering time is taken as the starting point, and if the triggered reference signal resource does not exist, the reference signal resource with the minimum time slot offset value in the transmission period of the reference signal resource is taken as the starting point. After the starting point of the binding resource is determined, a preset number of continuous reference signal resources including the starting point can be selected as a preset number of binding signals.

Based on any of the above embodiments, in the case that the resource types of all available reference signal resources are of the periodic type or the semi-persistent type, step 110 includes:

fig. 3 is a schematic diagram of resource binding of a P-SRS or an SP-SRS according to an embodiment of the present application, and as shown in fig. 3, a receiving end network side may configure a periodic type or a semi-persistent type SRS resource set in advance for a transmitting end terminal, where 4 periodic type or semi-persistent type SRS resources are configured in the SRS resource set, and a period T of each SRS resource is configured to be 5 slots. The 4 SRS resources are configured with a slot offset T_offsetRespectively 0,1,2 and 3. It is assumed that the size of the slot bundle, i.e., the preset number M, is 4. The terminal can minimize the time slot offset in one period, namely T_offseT is 0 as the starting point of the bound SRS resource, and after different slot offsets are ordered from small to large, the SRS resource corresponding to the M-1 slot offset value is transmitted as the end point of the bound SRS resource, namely T_offsetAt 3.

After that, the terminal uses the same analog beam and digital beam to transmit on different time slots through the same antenna port M bonding resources.

Based on any of the above embodiments, in the case that the resource types of all available reference signal resources are non-periodic types, step 110 includes:

fig. 4 is a schematic diagram of resource binding of an a-SRS according to an embodiment of the present application, and as shown in fig. 4, a receiving end network side configures 3 aperiodic SRS resource sets for a transmitting end terminal, each resource set is configured with 1 aperiodic SRS resource, and slot offsets k configured for the 3 a-SRS resources are 2,3, and 5, respectively. The network side sends a DCI to the terminal at time slot n while triggering the 3 resource sets. And the terminal triggers the SRS resource transmission in 3 resource sets according to the received DCI signaling.

Further, the terminal firstly sorts the timeslot offset values of the 3 resource sets in descending order according to the configuration parameters in the resource sets, and then selects the first M-3 SRSs for binding transmission. And taking the SRS resource transmitted by the minimum slot offset k being 2 as a binding starting point, and taking the M-1 SRS resource transmission as a binding end point.

Based on any of the above embodiments, in the case that the resource types of all available reference signal resources are a periodic type and a semi-persistent type, step 110 includes:

fig. 5 is a schematic diagram of resource binding of a P-SRS and an SP-SRS provided in an embodiment of the present application, and as shown in fig. 5, a receiving end network side configures a periodic and a semi-persistent SRS resource set for a transmitting end terminal, where the periodic and semi-persistent SRS resource sets are configured with 4 periodic and semi-persistent SRS resources, and a period T configuration of each SRS resource is 40 slots. Time slot offset T configured by 4P-

SRS resources

_offset0,9,19,29, respectively. Time slot offset T configured by 4 SP-

SRS resources

_offset4,14,24,34, respectively. Assuming the size of the slot binding, i.e. the predetermined number M is 4. The terminal sorts different time slot offsets according to the size according to the SRS resource set configuration parameters, and then the time slot offset is the minimum in one period, namely T_offsetTaking 0 as the starting point of the SRS resource bound, and transmitting the SRS resource corresponding to the M-1 time slot offset value, namely T_offsetAnd 14 as the final point of the bound SRS resource.

Based on any of the above embodiments, step 110 includes:

Here, in the case that the aperiodic reference signal resource exists in the available reference signal resources, specifically, the available reference signal resources may include both the aperiodic reference signal resource and the periodic or non-persistent reference signal resource, or the available reference signal resources may include three types of reference signal resources, namely, periodic, non-persistent, and aperiodic reference signal resources.

Specifically, when the bonding resource is selected under such a condition, the triggered aperiodic type reference signal resource is ensured to be included in the bonding resource as much as possible while considering the slot offset value of each available reference signal resource.

Based on any of the above embodiments, in the case that there exist available reference signal resources with a resource type of aperiodic type and a resource type of periodic type simultaneously, or there exist available reference signal resources with a resource type of aperiodic type and a resource type of semi-persistent type simultaneously, step 110 includes:

Specifically, if only one aperiodic reference signal resource exists in all available reference signal resources, the aperiodic reference signal resource can be directly used as a starting point, an end point or a central point of a preset number of bound resources, and then a preset number of continuous reference signal resources including the aperiodic reference signal resource are selected as the bound resources;

if two or more aperiodic reference signal resources exist in all available reference signal resources, the bonding resource can be selected in the following manner:

firstly, determining the positions of the triggered available reference signal resources of each aperiodic type in all the reference signal resources arranged according to the sequence of the time slot offset values from small to large, taking the position with the minimum time slot offset value in all the triggered reference resource signals of the aperiodic types, namely the most front position in all the triggered reference resource signals of the aperiodic types as the starting point of M binding resources with preset quantity, and selecting M-N reference signal resources backwards on the assumption that the quantity of the reference signal resources at the starting point is N, thereby forming M binding resources;

or, the positions of the triggered available reference signal resources of each aperiodic type in all the reference signal resources arranged according to the sequence of the time slot offset values from small to large can be determined, the position with the largest time slot offset value in all the triggered reference resource signals of the aperiodic types, that is, the rearmost position in all the triggered reference resource signals of the aperiodic types, is taken as the end point of the M binding resources in the preset number, and assuming that the number of the reference signal resources at the end point is N, the M-N reference signal resources are selected forward to form the M binding resources;

or, the positions of the triggered available reference signal resources of each aperiodic type in all the reference signal resources arranged according to the sequence of the slot offset values from small to large may be determined, and the position corresponding to the middle value of the slot offset values in all the triggered reference resource signals of the aperiodic types, that is, the position at the middle of the triggered reference resource signals of the aperiodic types, is used as the center point of M binding resources of the preset number, and assuming that the number of the reference signal resources at the center point is N, M-N reference signal resources are selected forward and backward together, thereby forming M binding resources.

Based on any of the above embodiments, under the condition that an available reference signal resource with a resource type of aperiodic type and an available reference signal resource with a resource type of periodic type exist at the same time, it is assumed that a receiving end network side configures a periodic SRS resource set and an aperiodic SRS resource set for a transmitting end terminal respectively, where the periodic SRS resource set includes SRS resources with 4 periods, the aperiodic SRS resource set includes SRS resources with 1 aperiodic type, and the period T configuration of each SRS resource is 40 slots. Time slot offset T configured by 4P-SRS resources_offsetAre respectively 0,9,19,29. The time slot offset k configured for the A-SRS resource. The network side sends a DCI to the terminal at the time slot n and simultaneously triggers the A-SRS of the aperiodic resource set, and the terminal sends an aperiodic SRS resource at the time slot n + k. It is assumed that the size of the slot bundle, i.e., the preset number M, is 4. The binding transmission of the P-SRS and the A-SRS resources has the following three modes:

fig. 6 is a schematic diagram of resource binding of a P-SRS and an a-SRS according to an embodiment of the present application, and as shown in fig. 6, after slot offsets configured for different P-SRS resources by a terminal are ordered from small to large, if an a-SRS is transmitted between two minimum offset values, the terminal may use the a-SRS as a central point of the bound resources, and take the minimum slot offset, i.e., T, in one period as the minimum slot offset_offsetAs the starting point of the bonding resource, the SRS resource corresponding to the 3 rd slot offset value is transmitted, i.e. T_offsetAs the end point of the bound resource at 19. Then, the terminal transmits on different time slots through the same M bonding resources of the antenna ports by using the same analog beam and digital beam.

Fig. 7 is a schematic diagram of resource binding of a P-SRS and an a-SRS according to another embodiment of the present application, and as shown in fig. 7, a terminal takes an a-SRS resource as an end point of a bound resource, sorts slot offsets of different P-SRS resource configurations according to sizes, and then takes the end point as a starting point for transmitting a forward 3 rd P-SRS resource. Then, the terminal transmits on different time slots through the same M bonding resources of the antenna ports by using the same analog beam and digital beam.

Fig. 8 is a schematic diagram of resource binding of a P-SRS and an a-SRS according to another embodiment of the present application, and as shown in fig. 8, a terminal uses an a-SRS resource as a starting point of a binding resource, sorts slot offsets configured by different P-SRS resources according to sizes, and transmits SRS resources corresponding to a 3 rd slot offset value, that is, T is T_offsetAnd 29 as the end point of the bound resource. Then, the terminal transmits on different time slots through the same M bonding resources of the antenna ports by using the same analog beam and digital beam.

It should be noted that, in the case that an available reference signal resource with a non-periodic resource type and an available reference signal resource with a semi-persistent resource type exist at the same time, the method for determining the binding resource may refer to a method for determining an available reference signal resource with a non-periodic resource type and an available reference signal resource with a periodic resource type, which is not described herein again.

Based on any of the above embodiments, the reference signal resource is a sounding reference signal SRS resource, and the receiving end is a network side. Correspondingly, the transmitting end of the execution main body in the embodiment of the application is a terminal. In this case, the determination of the bound resource may also be implemented according to a manner of signaling sent by the network side. At this time, step 110 includes:

receiving binding resource configuration information sent by a network side, wherein the binding resource configuration information is at least one of Radio Resource Control (RRC) information, media access control-control unit (MAC-CE) information and Downlink Control Information (DCI);

Specifically, the binding resource configuration information is configured to the terminal by the network side, and is used for notifying the terminal that the SRS resource to be transmitted needs to be bound. The binding resource configuration information may be that the network side is configured to the terminal in the form of RRC signaling before SRS transmission, or that the network side performs dynamic indication of binding resources through MAC-CE or DCI when a used analog or digital beam may change during SRS transmission, and needs to re-bind SRS resource transmission, or needs to increase SRS transmission period, or needs to specify SRS resource binding transmission.

The binding resource configuration information may include an identifier of the SRS resource to be bound for transmission, or an identifier of the SRS resource set to be bound for transmission, or may also include a time threshold of the SRS resource to be bound for transmission, which is not specifically limited in this embodiment of the present application.

For example, the network side may configure, by RRC, M-5P-SRS resource bundling transmissions for the terminal, where the period T of the 5 SRS resources is 40slots, and the slot offsets are 0,9,19,29, and 39, respectively. And after receiving the binding resource configuration information in the RRC form, the terminal binds and transmits the 5P-SRS resources.

For another example, the network side configures a periodic SRS resource set and two aperiodic SRS resource sets to the terminal, the periodic SRS resource set configures 4P-SRS resources, and the periodic T configuration of each SRS resource is 40 slots. Time slot offset T configured by 4P-

SRS resources

_offset0,9,19,29 respectively. Each aperiodic SRS resource set is configured with 1A-SRS resource, and the two A-SRS resources are configured with a time slot offset k. When the network side detects that the beam used by the terminal to transmit the SRS changes at a certain time, the network side triggers the two a-SRS resources through the DCI signaling, and indicates that the size M of the bound and transmitted SRS resource is 4 in the DCI signaling, the terminal can use the two a-SRS resources as the starting points of the bound resources according to the bound and configured resource information included in the DCI signaling, and select two P-SRS arranged behind the two a-SRS resources in the order of the smaller slot offset value to the larger slot offset value, so as to obtain a total of 4 bound resources for binding transmission.

Based on any of the above embodiments, the determining, in step 110, a plurality of bonding resources from all available SRS resources based on the bonding resource configuration information includes:

and determining the SRS resource corresponding to each binding SRS resource identifier indicated by the binding resource configuration information from all available SRS resources as a binding resource.

Specifically, the binding resource configuration information may directly carry a resource identifier of each SRS resource that needs to be bound and transmitted, that is, the binding SRS resource identifier. The resource identifier may be a resource ID directly corresponding to the SRS resource, or may be information related to the SRS resource and usable for determining the SRS resource, such as a slot offset value, a resource type, and the like. After receiving the binding resource configuration information, the terminal can select, according to each binding SRS resource identifier included in the binding resource configuration information, an SRS resource corresponding to each binding SRS resource identifier from all available SRS resources, thereby obtaining a binding resource.

and determining the SRS resource of the transmission moment in the binding time interval from all the available SRS resources as the binding resource.

Specifically, the binding resource configuration information may carry a binding time threshold, where the binding time threshold represents a period of time, and the binding time threshold may be combined with a receiving time of the binding configuration information or a binding start time carried in the binding configuration information to form a period of time, that is, a binding time interval. And the binding time interval is used for reflecting the transmission time interval corresponding to the SRS resource needing to be bound and transmitted.

The binding resource configuration information may only carry the binding time threshold, or may carry both the binding time threshold and the binding start time. When the binding resource configuration information can only carry a binding time threshold, defaulting the receiving time of the terminal, namely the current time is the initial time of a binding time interval, and the binding time threshold is the interval length of the binding time interval; when the binding resource configuration information carries both the binding time threshold and the binding start time, the binding start time can be directly used as the start time of the binding time interval, and the binding time threshold is the interval length of the binding time interval.

After the binding time interval is obtained, the SRS resource with the transmission time within the binding time interval can be selected from all available SRS resources and used as the binding resource.

Based on any of the above embodiments, the spatial correlation information configured by the plurality of bonding resources is independent of the CSI-RS;

or the spatial correlation information configured by the plurality of bundled resources is associated with the CSI-RS transmitted last time before the plurality of bundled resources are transmitted.

Specifically, the usage of SRS resources may be configured as codebook transmission, non-codebook transmission, antenna switching, and beam management. For uplink codebook transmission and beam management, SRS resource binding transmission can be performed with reference to any of the embodiments described above; for antenna switching transmission, the bundled SRS resources are transmitted using the same antenna port, for example, the number of the configured SRS resource 0, SRS resource 1, and SRS resource 2 is 1,2, and 1, respectively, and then only SRS resource 0 and SRS resource 2 can be used as the bundled resources, so that SRS resource 0 and SRS resource 2 can be transmitted using the same digital beam and analog beam. For non-codebook transmission, two specific cases may be specified according to whether spatial correlation info configured with SRS is associated with downlink CSI-RS transmission:

case 1: the spatiallationinfo configuring the SRS does not associate with any downlink CSI-RS transmission;

for the SRS resource set configured to the terminal by the network side, the terminal may directly refer to the method for determining the binding resource shown in any of the above embodiments, and determine a preset number of binding resources from all the selectable SRS resources for binding transmission.

Case 2: configuring spatiallationinfo of the SRS to associate with one downlink CSI-RS transmission;

of particular relevance here is the CSI-RS that was most recently received prior to the bundled resource transmission.

Fig. 9 is a schematic diagram of spatial correlation information association provided in the embodiment of the present application, and as shown in fig. 9, before a bound SP-SRS resource, a terminal has received three CSI-RS resources, which are CSI-RS 0, CSI-RS 1, and CSI-RS 2, respectively. To enable bundled SP-SRS to be used for non-codebook transmission, the spatiallationsinfo of the bundled SP-SRS resources are each associated with CSI-RS 2 so that the bundled resources can be transmitted in the same beam.

Based on any of the above embodiments, the reference signal resource is a channel state information reference signal CSI-RS resource, and the receiving end is a terminal. Correspondingly, the transmitting end of the execution main body in the embodiment of the application is the network side. In this case, corresponding to the case that the reference channel resource is an SRS resource, the spatial correlation information configured by the plurality of bonding resources is not related to the sounding reference signal SRS; or, the spatial correlation information configured by the plurality of bundled resources is associated with the SRS transmitted last time before the plurality of bundled resources are transmitted.

Based on any of the above embodiments, the different transmission time instants are different time slots, or different symbols in the same time slot.

Specifically, the above embodiments have been described for the case where different transmission times are different time slots. In addition, in the case that different transmission times are different symbols in the same time slot, the above embodiment may be referred to, and only different time slots in the above embodiments are replaced with different OFDM symbols transmitted in the same time slot, which is not described herein again.

Based on any of the above embodiments, fig. 10 is a schematic flowchart of a reference signal transmission method according to another embodiment of the present application, and as shown in fig. 10, an execution subject of the method is a receiving end of reference signal transmission, and the method includes:

step 1010, receiving a plurality of bonding resources sent by the transmitting end through the same antenna port at different sending times by using the same analog beam and the same data beam, wherein the plurality of bonding resources are determined by the transmitting end from all available reference signal resources.

At step 1020, channel measurements are made based on the plurality of bonded resources.

Here, the receiving end may be a network side, and correspondingly the transmitting end is a terminal, and the reference signal resource is a sounding reference signal SRS resource. The terminal determines a plurality of binding resources from all available SRS resources, and sends the plurality of binding resources to the network side through the same analog wave beam and the same data wave beam at different sending time by the same antenna port, and the network side can perform uplink channel measurement based on the plurality of binding resources after receiving the plurality of binding resources.

In addition, the receiving end can also be a terminal, correspondingly, the transmitting end is a network side, and the reference signal resource is a channel state information reference signal CSI-RS resource. The network side determines a plurality of bound resources from all available CSI-RS resources, and sends the plurality of bound resources to the terminal through the same analog beam and the same data beam at different sending moments through the same antenna port, and the terminal can perform downlink channel measurement based on the plurality of bound resources after receiving the plurality of bound resources.

Specifically, in step 1010, the sending end may select two or more reference signal resources from all available reference signal resources, and use each selected reference signal resource as a bonding resource, thereby obtaining two or more bonding resources. Here, the bundling resource is a reference signal resource for performing bundling transmission, and the bundling transmission refers to transmission through the same analog beam and the same data beam at the same antenna port.

Each binding resource corresponds to a different sending time, where the different sending times may be different time slots or different symbols in the same time slot, and this is not specifically limited in this embodiment of the present application.

After determining a plurality of bound resources, the transmitting end may transmit the bound resources one by one through the same analog beam and the same data beam at the same antenna port according to the transmission time corresponding to each bound resource.

Accordingly, the receiving end may receive the bonding resources one by one through the same analog beam and the same data beam at the same antenna port based on the transmission time corresponding to each bonding resource.

In step 1020, after receiving the multiple bonding resources, the receiving end may perform joint channel estimation on the multiple bonding resources, and perform joint signal estimation on multiple reference signal resources sent at multiple times, compared with a scheme of performing channel estimation only on a single reference signal resource sent at a single time, the channel information can be estimated more accurately, so as to enhance the coverage of the reference signal.

The method provided by the embodiment of the application receives the reference signal resources sent by the same antenna port at different sending moments through the same analog beam and the same data beam in a binding mode, and carries out channel estimation according to the reference signal resources sent at the multiple moments, so that the accuracy of channel estimation is improved, and the data transmission performance is guaranteed.

Based on any of the above embodiments, the reference signal resource is a Sounding Reference Signal (SRS) resource, and the transmitting end is a terminal. Accordingly, the receiving end is the network side. In this case, the determination of the bound resource may also be implemented according to a manner of signaling sent by the network side.

Further, step 1010 is preceded by:

sending binding resource configuration information to the terminal, so that the terminal determines a plurality of binding resources from all available SRS resources based on the binding resource configuration information;

SRS resources

_offset0,9,19,29, respectively. Each aperiodic SRS resource set is configured with 1A-SRS resource, and the two A-SRS resources are configured with a time slot offset k. When the network side detects that the beam used by the terminal to transmit the SRS changes at a certain time, the network side triggers the two a-SRS resources through the DCI signaling, and indicates that the size M of the bound and transmitted SRS resource is 4 in the DCI signaling, the terminal can use the two a-SRS resources as the starting points of the bound resources according to the bound and configured resource information included in the DCI signaling, and select two P-SRS arranged behind the two a-SRS resources in the order of the smaller slot offset value to the larger slot offset value, so as to obtain a total of 4 bound resources for binding transmission.

Based on any of the above embodiments, the binding resource configuration information includes a binding time threshold, or the binding time threshold and a binding start time, or a plurality of bound SRS resource identifiers.

The binding resource configuration information may carry a binding time threshold, where the binding time threshold represents a period of time, and the binding time threshold may be combined with a receiving time of the binding configuration information or a binding start time carried in the binding configuration information to form a period of time, that is, a binding time interval. And the binding time interval is used for reflecting the transmission time interval corresponding to the SRS resource needing to be bound and transmitted.

Further, the binding resource configuration information may only carry the binding time threshold, or may carry both the binding time threshold and the binding start time. When the binding resource configuration information can only carry a binding time threshold, defaulting the receiving time of the terminal, namely the current time is the initial time of a binding time interval, and the binding time threshold is the interval length of the binding time interval; when the binding resource configuration information carries both the binding time threshold and the binding start time, the binding start time can be directly used as the start time of the binding time interval, and the binding time threshold is the interval length of the binding time interval. After determining the binding time interval, the terminal may select, from all available SRS resources, an SRS resource whose transmission time is within the binding time interval as a binding resource.

or the spatial correlation information configured by the plurality of bundled resources is associated with the plurality of bundled resources to send the last transmitted CSI-RS.

Specifically, the usage of SRS resources may be configured as codebook transmission, non-codebook transmission, antenna switching, and beam management. For uplink codebook transmission and beam management, SRS resource binding transmission can be performed with reference to any of the above embodiments; for antenna switching transmission, the bundled SRS resources are transmitted using the same antenna port, for example, the number of the configured SRS resource 0, SRS resource 1, and SRS resource 2 is 1,2, and 1, respectively, and then only SRS resource 0 and SRS resource 2 can be used as the bundled resources, so that SRS resource 0 and SRS resource 2 can be transmitted using the same digital beam and analog beam. For non-codebook transmission, whether spatial correlation info configured with SRS is associated with downlink CSI-RS transmission may be specifically divided into two cases:

specifically associated here is the CSI-RS that was most recently received prior to the transmission of the bundled resource.

Based on any of the above embodiments, the reference signal resource is a CSI-RS resource, and the transmitting end is a network side. Accordingly, the receiving end of the execution main body in the embodiment of the present application is a terminal. In this case, corresponding to the case that the reference channel resource is an SRS resource, the spatial correlation information configured by the plurality of bonding resources is not related to the sounding reference signal SRS; or, the spatial correlation information configured by the plurality of bundled resources is associated with the SRS transmitted last time before the plurality of bundled resources are transmitted.

Based on any of the above embodiments, a method for transmitting a reference signal, where the reference signal resource is an SRS resource, a transmitting end is a terminal, and a receiving end is a network side, includes the following steps:

the terminal may select a preset number M of SRS resources as the bonding resources from all available SRS resources according to a predetermined selection manner of the bonding resources or received bonding resource configuration information sent by the network side.

And then, the terminal sends the M binding resources to the network side through the same analog beam and the same data beam by the same antenna port at different sending moments, and the network side can perform uplink channel measurement based on all the binding resources after receiving each binding resource.

The selection method of the pre-agreed binding resource may specifically include:

in a first manner, when all available SRS resources are of the same resource type, or all available SRS resources are of a periodic type and a semi-persistent type, all available SRS resources may be arranged from small to large according to a slot offset value, and M consecutive SRS resources are selected as binding resources:

further, there may be triggered SRS resources in all available SRS resources, where the triggered SRS resources may be semi-persistent SRS resources triggered by MAC-CE or aperiodic SRS resources triggered by DCI. When triggered SRS resources exist, M SRS resources that are continuous after the triggering time may be used as binding resources; if there is no triggered SRS resource, M consecutive SRS resources transmitted first in one transmission period may be directly used as the bonding resource.

In a second manner, when all available SRS resources include not only aperiodic SRS resources but also periodic SRS resources and/or semi-persistent SRS resources, then, from all available SRS resources arranged from small to large according to the slot offset value, M consecutive SRS resources including aperiodic SRS resources are selected as binding resources:

further, assuming that the number of the aperiodic-type SRS resources is N, selecting M consecutive SRS resources including the aperiodic-type SRS resources may specifically be: selecting M-1 SRS resources behind a starting point by taking the SRS resource with the minimum time slot offset value in the N aperiodic SRS resources as the starting point to form M binding resources; or taking the SRS resource with the maximum time slot offset value in the N aperiodic SRS resources as a terminal point, and selecting M-1 SRS resources before the terminal point to form M binding resources; or taking the SRS resource corresponding to the middle value of the time slot offset value in the N aperiodic SRS resources as a central point, and selecting M-1 SRS resources which are nearest to the middle point before and after the central point to form M binding resources.

In addition, the selection method of the bound resource based on the bound resource configuration information may specifically include:

selecting binding resources from all available SRS resources according to the SRS resource corresponding to each binding SRS resource identifier contained in the binding resource configuration information;

or, a binding time interval corresponding to the transmission time of the binding resource may be determined according to a binding time threshold included in the binding resource configuration information, and then the SRS resource whose transmission time is within the binding time interval is selected from all available SRS resources as the binding resource.

In addition, the spatial correlation information configured by the plurality of bonding resources is irrelevant to a channel state information reference signal (CSI-RS); or the spatial correlation information configured by the plurality of bundled resources is associated with the plurality of bundled resources to send the last transmitted CSI-RS.

According to the method provided by the embodiment of the application, the terminal transmits the plurality of SRS resources in different transmission moments through the same simulation wave beam and the same data wave beam in a binding manner by using the same antenna port, so that the network side can perform uplink channel estimation according to the SRS resources transmitted at the plurality of moments, the accuracy of the uplink channel estimation is improved, and the data transmission performance is ensured.

Based on any of the above embodiments, a method for transmitting a reference signal, where the reference signal resource is a CSI-RS resource, a transmitting end is a network side, and a receiving end is a terminal, includes the following steps:

the network side can select M CSI-RS resources with preset quantity from all available CSI-RS resources as binding resources according to a selection mode of the binding resources agreed in advance.

Then, the network side sends the M binding resources to the terminal through the same analog beam and the same data beam at different sending times through the same antenna port, and the terminal can perform downlink channel measurement based on all the binding resources after receiving each binding resource.

in a first manner, when all available CSI-RS resources are of the same resource type, or all available CSI-RS resources are of a periodic type and a semi-persistent type, all available CSI-RS resources may be arranged from small to large according to a slot offset value, and M consecutive CSI-RS resources are selected as bonding resources:

further, there may be triggered CSI-RS resources among all available CSI-RS resources, where the triggered SRS resource may be a semi-persistent CSI-RS resource triggered by MAC-CE or an aperiodic CSI-RS resource triggered by UCI. When triggered CSI-RS resources exist, M continuous CSI-RS resources after the triggering time can be used as binding resources; if the triggered CSI-RS resources do not exist, M continuous CSI-RS resources sent firstly in one sending period can be directly used as binding resources.

In a second mode, when all available CSI-RS resources include not only aperiodic CSI-RS resources but also periodic CSI-RS resources and/or semi-persistent CSI-RS resources, then, in all available CSI-RS resources arranged from small to large according to the slot offset value, M consecutive CSI-RS resources including aperiodic CSI-RS resources are selected as bonding resources:

further, assuming that the number of the aperiodic CSI-RS resources is N, selecting M consecutive CSI-RS resources including the aperiodic CSI-RS resources may specifically be: selecting M-1 CSI-RS resources behind a starting point by taking the CSI-RS resource with the minimum time slot offset value in the N aperiodic CSI-RS resources as the starting point to form M binding resources; or selecting M-1 CSI-RS resources before the end point by taking the CSI-RS resource with the largest time slot offset value in the N aperiodic CSI-RS resources as the end point to form M bound resources; or selecting M-1 nearest CSI-RS resources before and after the intermediate point by taking the CSI-RS resource corresponding to the intermediate value of the time slot offset value in the N aperiodic CSI-RS resources as a central point to form M binding resources.

In addition, the spatial correlation information configured by the plurality of bonding resources is irrelevant to the Sounding Reference Signal (SRS); or, the spatial correlation information configured by the plurality of bonding resources is associated with the plurality of bonding resources to transmit the last SRS transmitted before.

According to the method provided by the embodiment of the application, the network side binds and sends the multiple CSI-RS resources through the same analog beam and the same data beam by using the same antenna port at different sending moments, so that the terminal can perform downlink channel estimation according to the CSI-RS resources sent at the multiple moments, the accuracy of downlink channel estimation is improved, and the data transmission performance is ensured.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, e.g., a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange language and/or data with the Radio Access Network. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network side related to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services for a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames and Internet Protocol (IP) packets with one another as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communications network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Fig. 11 is a schematic structural diagram of a transmitting end according to an embodiment of the present application, as shown in fig. 11, the transmitting end includes a memory 1120, a transceiver 1110, and a processor 1100, where:

a memory 1120 for storing a computer program; a transceiver 1110 for transceiving data under the control of the processor 1100; a processor 1100 for reading the computer program in the memory 1120 and performing the following operations:

In particular, the transceiver 1110 is used to receive and transmit data under the control of the processor 1100.

Where in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more of the processor 1100, represented by the processor 1100, and various circuits of the memory, represented by the memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

Alternatively, the processor 1100 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

It should be noted that, the transmitting end provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

Optionally, according to the transmitting end provided by an embodiment of the present application, the determining a plurality of bonding resources from all available reference signal resources includes:

Optionally, according to the transmitting end provided by an embodiment of the present application, the determining, based on the resource types and the slot offset values of all available reference signal resources, a preset number of bonding resources from all available reference signal resources includes:

Optionally, according to the transmitting end provided by an embodiment of the present application, the step of using a preset number of consecutive reference signal resources in all available reference signal resources arranged from small to large according to the time slot offset value as the bonding resource specifically includes:

Optionally, according to the transmitting end provided by an embodiment of the present application, the selecting, from all available reference signal resources arranged from small to large according to the slot offset value, a consecutive preset number of reference signal resources including at least one non-periodic type of available reference signal resource includes:

Optionally, according to the transmitting end provided in an embodiment of the present application, the reference signal resource is a sounding reference signal SRS resource, and the receiving end is a network side.

Optionally, according to the transmitting end provided by an embodiment of the present application, the determining, based on the bonding resource configuration information, a plurality of bonding resources from all available SRS resources includes:

Optionally, at the transmitting end according to an embodiment of the present application, the spatial correlation information configured by the multiple bonding resources is independent of a CSI-RS;

Optionally, according to the transmitting end provided in an embodiment of the present application, the reference signal resource is a channel state information reference signal CSI-RS resource, and the receiving end is a terminal.

Optionally, according to the transmitting end provided in an embodiment of the present application, the spatial correlation information configured by the multiple bonding resources is independent of a sounding reference signal SRS;

Optionally, according to the transmitting end provided in an embodiment of the present application, the different sending time instants are different time slots, or different symbols in the same time slot.

Fig. 12 is a schematic structural diagram of a receiving end according to an embodiment of the present application, and as shown in fig. 12, the receiving end includes a memory 1220, a transceiver 1210, and a processor 1200, where:

a memory 1220 for storing computer programs; a transceiver 1210 for transceiving data under the control of the processor 1200; a processor 1200 for reading the computer program in the memory 1220 and performing the following operations:

performing channel measurements based on the plurality of bonded resources.

In particular, a transceiver 1210 for receiving and transmitting data under the control of the processor 1200.

Where in fig. 12, the bus architecture may include any number of interconnected buses and bridges, with one or more processors 1200, represented by processor 1200, and various circuits of memory, represented by memory 1220, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1210 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1200 in performing operations.

Optionally, the processor 1200 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

It should be noted that, the receiving end provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

Optionally, according to the receiving end provided in an embodiment of the present application, the reference signal resource is a sounding reference signal SRS resource, and the transmitting end is a terminal.

Optionally, according to the receiving end provided by an embodiment of the present application, the receiving and transmitting end, at different transmission time, sends multiple bonding resources through the same antenna port by using the same analog beam and the same data beam, and before the receiving end, the method further includes:

Optionally, according to the receiving end provided in an embodiment of the present application, the binding resource configuration information includes a binding time threshold, or the binding time threshold and a binding start time, or a plurality of binding SRS resource identifiers.

Optionally, according to the receiving end provided in an embodiment of the present application, the spatial correlation information configured by the multiple bonding resources is independent of a CSI-RS;

Optionally, according to the receiving end provided in an embodiment of the present application, the reference signal resource is a channel state information reference signal CSI-RS resource, and the transmitting end is a network side.

Optionally, according to the receiving end provided in an embodiment of the present application, spatial correlation information configured by the multiple bonding resources is unrelated to a sounding reference signal SRS;

or, the spatial correlation information configured by the plurality of bundled resources is associated with the plurality of bundled resources to transmit the last SRS transmitted before.

Optionally, according to the receiving end provided in an embodiment of the present application, the different sending time instants are different time slots, or different symbols in the same time slot.

Based on any of the above embodiments, fig. 13 is a schematic structural diagram of a reference signal transmission apparatus provided in the embodiments of the present application, and as shown in fig. 13, the reference signal transmission apparatus includes a binding determining unit 1310 and a binding sending unit 1320;

the binding determining unit 1310 is configured to determine a plurality of binding resources from all available reference signal resources;

the bundling transmitting unit 1320 is configured to transmit the multiple bundling resources to a receiving end through the same antenna port at different transmission time instances by using the same analog beam and the same data beam, so that the receiving end performs channel measurement based on the multiple bundling resources.

It should be noted that, the reference signal transmission apparatus provided in the embodiment of the present application can implement all the method steps implemented by the foregoing method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted here.

Based on any of the above embodiments, the binding determination unit 1310 is configured to:

Based on any of the above embodiments, if the resource types of all available reference signal resources are periodic types and/or semi-persistent types, or the resource types of all available reference signal resources are aperiodic types, the binding determining unit 1310 is configured to:

Based on any of the above embodiments, if there exist available reference signal resources with a resource type of aperiodic type and a resource type of periodic type at the same time, or there exist available reference signal resources with a resource type of aperiodic type and a resource type of semi-persistent type at the same time, the binding determining unit 1310 is configured to:

Based on any of the above embodiments, the reference signal resource is a sounding reference signal SRS resource, and the receiving end is a network side.

Based on any of the above embodiments, the spatial correlation information configured by the plurality of bonding resources is independent of a channel state information reference signal CSI-RS;

Based on any of the above embodiments, the reference signal resource is a channel state information reference signal CSI-RS resource, and the receiving end is a terminal.

Based on any of the above embodiments, the spatial correlation information configured by the plurality of bonding resources is independent of a Sounding Reference Signal (SRS);

It should be noted that the reference signal transmission apparatus provided in the embodiment of the present application can implement all the method steps implemented by the foregoing method embodiments, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiments in this embodiment are not repeated herein.

Based on any of the above embodiments, fig. 14 is a schematic structural diagram of a reference signal transmission apparatus according to another embodiment of the present application, as shown in fig. 14, the reference signal transmission apparatus includes a bundling receiving unit 1410 and a channel measuring unit 1420;

the bonding receiving unit 1410 is configured to receive multiple bonding resources that are sent by a transmitting end through the same antenna port at different sending times by using the same analog beam and the same data beam, where the multiple bonding resources are determined by the transmitting end from all available reference signal resources;

the channel measurement unit 1420 is configured to perform channel measurement based on the plurality of bundled resources.

Based on any of the above embodiments, the reference signal resource is a sounding reference signal, SRS, resource, and the transmitting end is a terminal.

Based on any of the above embodiments, the apparatus further comprises a configuration information sending unit; the configuration information sending unit is used for:

Based on any of the above embodiments, the reference signal resource is a channel state information reference signal CSI-RS resource, and the transmitting end is a network side.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the reference signal transmission method provided in each of the above embodiments, and the method includes:

An embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the reference signal transmission method provided in each of the above embodiments, and the method includes:

performing channel measurements based on the plurality of bonded resources.

In the processor-readable storage medium provided in this embodiment, the computer program stored thereon enables the processor to implement all the method steps implemented by the foregoing method embodiments, and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiments are omitted here.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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

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

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

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

Claims

1. A method for transmitting a reference signal, comprising:

2. The method of claim 1, wherein the determining the plurality of bonding resources from all available reference signal resources comprises:

3. The method of claim 2, wherein the determining a predetermined number of bundled resources from all available reference signal resources based on resource types and slot offset values of all available reference signal resources comprises:

4. The method for transmitting reference signals according to claim 3, wherein the step of using a preset number of consecutive reference signal resources in all available reference signal resources arranged from small to large according to the slot offset value as the bonding resource specifically includes:

5. The method of claim 2, wherein the determining a predetermined number of bundled resources from all available reference signal resources based on resource types and slot offset values of all available reference signal resources comprises:

6. The method according to claim 5, wherein the selecting a predetermined number of consecutive reference signal resources including at least one non-periodic type of available reference signal resource from all available reference signal resources arranged from small to large according to the slot offset value comprises:

7. The method according to any one of claims 1 to 6, wherein the reference signal resources are SRS resources, and the receiving end is a network side.

8. The method of claim 7, wherein the determining a plurality of bonding resources from all available reference signal resources comprises:

9. The method of claim 8, wherein the determining a plurality of bonding resources from all available SRS resources based on the bonding resource configuration information comprises:

10. The method of claim 8, wherein the determining a plurality of bonding resources from all available SRS resources based on the bonding resource configuration information comprises:

11. The method for transmitting reference signals according to claim 7, wherein the spatial correlation information configured by the plurality of bonding resources is independent of a channel state information reference signal (CSI-RS);

12. The method according to any one of claims 1 to 6, wherein the reference signal resource is a CSI-RS resource, and the receiving end is a terminal.

13. The method for transmitting reference signals according to claim 12, wherein the spatial correlation information configured by the plurality of bonding resources is independent of Sounding Reference Signals (SRS);

14. The method according to any one of claims 1 to 6, wherein the different transmission time instants are different time slots or different symbols in the same time slot.

15. A method for transmitting a reference signal, comprising:

performing channel measurements based on the plurality of bonded resources.

16. The method according to claim 15, wherein the reference signal resource is a Sounding Reference Signal (SRS) resource, and the transmitting end is a terminal.

17. The method of claim 16, wherein the receiving and transmitting end transmits the plurality of bonding resources through the same antenna port with the same analog beam and the same data beam at different transmission time instances, and before further comprising:

18. The method of claim 17, wherein the bonding resource configuration information includes a bonding time threshold, or the bonding time threshold and a bonding start time, or a plurality of bonding SRS resource identifiers.

19. The method for transmitting reference signals according to claim 17, wherein the spatial correlation information configured by the plurality of bonding resources is independent of a channel state information reference signal, CSI-RS;

or, the spatial correlation information configured by the bundled resources is associated with the CSI-RS transmitted by the bundled resources last time.

20. The method of claim 15, wherein the reference signal resource is a CSI-RS resource, and the transmitting end is a network side.

21. The method for transmitting reference signals according to claim 20, wherein the spatial correlation information configured by the plurality of bonding resources is independent of Sounding Reference Signals (SRS);

22. The method according to any of claims 15 to 21, wherein the different transmission time instants are different time slots or different symbols in the same time slot.

23. A transmitting terminal comprising a memory, a processor and a program stored in the memory and executable on the processor, wherein the processor executes the program to perform the steps of:

24. The transmitting end of claim 23, wherein the determining a plurality of bonding resources from all available reference signal resources comprises:

25. The transmitting end of claim 24, wherein the determining a preset number of bundled resources from all available reference signal resources based on the resource types and slot offset values of all available reference signal resources comprises:

26. The transmitting end of claim 24, wherein the determining a preset number of bundled resources from all available reference signal resources based on the resource types and slot offset values of all available reference signal resources comprises:

27. A receiving end, comprising a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement the following steps:

performing channel measurements based on the plurality of bonded resources.

28. A reference signal transmission apparatus, comprising:

29. A reference signal transmission apparatus, comprising:

30. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the reference signal transmission method according to any one of claims 1 to 22.