CN110460416B - Sounding reference signal transmission method, terminal equipment and network equipment - Google Patents
Sounding reference signal transmission method, terminal equipment and network equipment Download PDFInfo
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- CN110460416B CN110460416B CN201810434001.5A CN201810434001A CN110460416B CN 110460416 B CN110460416 B CN 110460416B CN 201810434001 A CN201810434001 A CN 201810434001A CN 110460416 B CN110460416 B CN 110460416B
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Abstract
The application discloses a sounding reference signal sending method, terminal equipment and network equipment, which are used for solving the problem that the terminal equipment cannot determine which time can send SRS resources when the aperiodic SRS resources are sent. The method comprises the following steps: receiving aperiodic first SRS triggering state indication information from network equipment; obtaining at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS triggering state indication information; determining a transmission time corresponding to the at least one first SRS resource set based on the time for receiving the first SRS triggering state indication information and the time offset corresponding to the at least one first SRS resource set; and transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a Sounding Reference Signal (SRS) transmission method, a terminal device, and a network device.
Background
A New Radio (NR) system supports terminal equipment antenna switching to transmit SRS, so that network equipment can acquire downlink channel information. SRS transmission can be divided into: periodic transmission, semi-persistent transmission, and aperiodic transmission.
When the terminal device transmits the SRS in an aperiodic manner, the higher layer signaling usually configures SRS resource sets, where each SRS resource set includes SRS resources. Since the number of symbols available for transmitting SRS in one slot is limited, and the SRS antenna switching transmission requires a guard interval of at least 1 symbol, the number of slots required for the terminal device antenna switching transmission of SRS may be greater than one (for example, two slots are required), and at this time, the terminal device may not be able to determine which slots may transmit SRS.
Disclosure of Invention
An object of the embodiments of the present application is to provide an SRS transmission method, a terminal device, and a network device, so as to solve the problem that when an aperiodic SRS resource is transmitted, the terminal device cannot determine at which times the SRS resource can be transmitted.
In a first aspect, a sounding reference signal sending method is provided, where the method is performed by a terminal device, and the method includes: receiving aperiodic SRS triggering state indication information from network equipment; obtaining at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS triggering state indication information; determining a transmission time corresponding to the at least one first SRS resource set based on the time for receiving the first SRS triggering state indication information and the time offset corresponding to the at least one first SRS resource set; and transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set.
In a second aspect, a sounding reference signal receiving method is provided, where the method is performed by a network device, and the method includes: sending aperiodic first SRS triggering state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set; and receiving a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, wherein the transmission time corresponding to the at least one first SRS resource set is determined by the terminal equipment based on the time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
In a third aspect, a terminal device is provided, which includes: a receiving module, configured to receive aperiodic SRS trigger state indication information from a network device; a resource set obtaining module, configured to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS trigger state indication information; a transmission time determining module, configured to determine, based on a time when the first SRS trigger state indication information is received and a time offset corresponding to the at least one first SRS resource set, a transmission time corresponding to the at least one first SRS resource set; and a transmitting module, configured to transmit the corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set.
In a fourth aspect, a network device is provided, the network device comprising: an indication information sending module, configured to send aperiodic first SRS trigger state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set; an SRS resource set receiving module, configured to receive a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, where the transmission time corresponding to the at least one first SRS resource set is determined by a terminal device based on a time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
In a fifth aspect, a terminal device is provided, which includes a processor, a memory and a computer program stored on the memory and operable on the processor, and when executed by the processor, the computer program implements the steps of the sounding reference signal transmitting method according to the first aspect.
In a sixth aspect, a network device is provided, which comprises a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, implementing the steps of the sounding reference signal receiving method according to the second aspect.
In a seventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, implements the steps of the sounding reference signal transmitting method according to the first aspect or implements the steps of the sounding reference signal receiving method according to the second aspect.
In the embodiment of the present invention, the terminal device may determine the transmission time corresponding to the SRS resource set based on the time for receiving the SRS trigger state indication information and the time offset corresponding to the SRS resource set, and finally transmit the corresponding SRS resource set at the determined transmission time, thereby solving the problem that the terminal device cannot determine at which time the SRS resource can be transmitted. Meanwhile, the problem caused by inconsistent understanding about the sending time between the network equipment and the terminal equipment can be avoided, and the transmission efficiency of the SRS resource set is improved conveniently.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flow chart of a sounding reference signal transmitting method according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an application of a sounding reference signal transmission method in resource collision according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an application of a sounding reference signal transmission method according to another embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an application of a sounding reference signal transmission method according to still another embodiment of the present invention;
fig. 5 is a schematic flowchart of a sounding reference signal receiving method according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
FIG. 7 is a schematic block diagram of a network device according to one embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal device according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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.
It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS) or a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, or a New Radio (NR) System, or a subsequent communication System.
In the embodiment of the present invention, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), etc., and the Terminal device may communicate with one or more core networks through a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.
In the embodiment of the present invention, the network device is a device deployed in a radio access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of devices having a base station function may differ. For example, in an LTE network, called an Evolved node B (eNB or eNodeB), in a third Generation (3G) network, called a node B (node B), or a network device in a later Evolved communication system, etc., although the words are not limiting.
As shown in fig. 1, an embodiment of the present invention provides a method for sending a sounding reference signal, which may be executed by a terminal device, and includes the following steps:
s110: receiving aperiodic first SRS trigger state indication information from a network device.
As mentioned above, SRS resource transmission can be divided into: periodic transmission, semi-persistent transmission and aperiodic transmission, and the embodiment can be applied to the scene of aperiodic transmission.
The first SRS trigger state indication information, the first SRS resource set, and the like mentioned in this embodiment are only for convenience of distinguishing from other SRS trigger state indication information (such as the second, third, and fourth SRS trigger state indication information) and other SRS resource sets mentioned later, and do not represent other special meanings.
The SRS trigger state indication information is usually sent by the network device, and may be used to indicate an SRS trigger state of the terminal device, where the SRS trigger state corresponds to an SRS resource set, a time offset, and the like.
Specifically, before the embodiment is performed, the network device may pre-configure, through high-layer signaling, an SRS resource set and a time offset, which correspond to each SRS trigger state, where the time offset indicates a time interval between the terminal device receiving the SRS trigger state indication information and actually transmitting the SRS resource set.
In addition, when the terminal device transmits the aperiodic SRS resource, the network device may configure 2 SRS resource sets in advance for the terminal device through a high-level signaling, where the 2 SRS resource sets include 4 SRS resources in total, and specifically, each SRS resource set may include 2 SRS resources; or, one SRS resource set includes 1 SRS resource, and the other SRS resource set includes 3 SRS resources.
S120: and obtaining at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS triggering state indication information.
As described above, the SRS trigger state corresponds to an SRS resource set, a time offset, and the like, for example, SRS trigger state 0 corresponds to SRS resource set 0 and SRS resource set 1:
the SRS resource set 0 comprises SRS resources 0 and 2, and the time offset of the SRS resource set 0 is 4;
SRS resource set 1 includes SRS resources 1 and 3, and the time offset of SRS resource set 1 is 6.
Therefore, in step S120, the corresponding SRS trigger state may be obtained according to the first SRS trigger state indication information, and then the corresponding at least one first SRS resource set and the time offset corresponding to the obtained at least one first SRS resource set are obtained according to the SRS trigger state. Generally, one set of SRS resources corresponds to one time offset.
In this embodiment, the number of the obtained at least one first SRS resource set may specifically be 1 or multiple, for example, 2. When the number of the at least one first SRS resource set is multiple, step S120 may be to obtain time offsets corresponding to the multiple first SRS resource sets.
S130: and determining the transmission time corresponding to the at least one first SRS resource set based on the time for receiving the first SRS triggering state indication information and the time offset corresponding to the at least one first SRS resource set.
In this step, the transmission time corresponding to the first SRS resource set may be the time when the first SRS trigger state indication information is received plus a time offset corresponding to the first SRS resource set. For example, if the time for receiving the first SRS trigger state indication information is time n and the time offset corresponding to the first SRS resource set is m, the transmission time corresponding to the first SRS resource set may be n + m.
The number of the at least one first SRS resource set obtained in step S120 may be 1 or 2, and the transmission time of each first SRS resource set may be determined through step S130.
It should be noted that, in this specification, time concepts such as "time'" for receiving the first SRS trigger state indication information, "time offset", "transmission time" and the like are mentioned, and specifically may be a slot or a symbol, for example, a time offset corresponding to at least one first SRS resource set, and specifically a slot offset corresponding to at least one first SRS resource set; a transmission time corresponding to the at least one first SRS resource set, specifically, a transmission slot corresponding to the at least one first SRS resource set, and so on.
S140: and transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set.
As described above, in this embodiment, the number of the obtained at least one first SRS resource set may be specifically 1 or 2, and accordingly, the transmission time corresponding to the obtained at least one first SRS resource set is also 1 or 2, so step S140 may transmit the corresponding first SRS resource set (specifically, the SRS resources in the first SRS resource set) at the determined transmission time.
By the sounding reference signal transmission method provided by the embodiments of the present specification, the terminal device may determine the transmission time corresponding to the SRS resource set based on the time for receiving the SRS trigger state indication information and the time offset corresponding to the SRS resource set, and finally transmit the corresponding SRS resource set at the determined transmission time, thereby solving the problem that the terminal device cannot determine at which time the SRS resource can be transmitted. Meanwhile, the problem caused by inconsistent understanding about the sending time between the network equipment and the terminal equipment can be avoided, and the transmission efficiency of the SRS resource set is improved conveniently.
When the terminal device transmits the SRS resource aperiodically, the operation steps from "receiving the SRS trigger state indication information" to "transmitting the corresponding SRS resource at the transmission time" may be performed multiple times according to the above steps S110 to S140.
The sounding reference signal transmission method provided in the embodiment of the present disclosure may be applied not only in a scenario where the terminal device uses the 1T4R antenna to switch and transmit the aperiodic SRS resource, but also in a scenario where the terminal device uses the 1T2R and 2T4R antennas to switch and transmit and manages the aperiodic SRS resource.
When transmitting SRS resource sets in step S140 of the above embodiment, if a network device configures a first target SRS resource set and a second target SRS resource set for the terminal device at a target transmission time (that is, the transmission times of the two SRS resource sets are the same), and there is a resource conflict between the first target SRS resource set and the second target SRS resource set, the embodiment shown in fig. 1 may further include the following steps:
not transmitting the second set of target SRS resources; alternatively, the first and second electrodes may be,
not transmitting SRS resources in the second SRS resource set, wherein resource collision occurs;
wherein the first target set of SRS resources is one of the at least one first set of SRS resources; the target transmission time corresponds to the first target SRS resource set;
the time for receiving the first SRS trigger state indication information is after or before the time for receiving the second SRS trigger state indication information, and the second SRS trigger state indication information corresponds to the second target SRS resource set.
To describe the above scenario of resource collision when transmitting SRS resource sets in detail, a specific embodiment is described below, as shown in fig. 2:
the terminal equipment switches and transmits the aperiodic SRS resource through a 1T4R antenna, wherein:
1) the terminal device receives SRS trigger state indication information in the time slot n by executing the step S110, where the SRS trigger state indication information indicates an SRS trigger state 0;
then, step S120 is executed to obtain SRS resource set 0 corresponding to SRS trigger state 0, where SRS resource set 0 includes SRS resources 0 and 2; the time offset corresponding to the SRS resource set 0 is 8;
by executing step S130, the transmission time corresponding to SRS resource set 0 is obtained as time slot n + 8.
At the same time, the user can select the desired position,
2) the terminal device receives SRS trigger state indication information at time slot n +4 by executing the step S110, where the SRS trigger state indication information indicates an SRS trigger state 1;
then, step S120 is executed to obtain SRS resource set 1 corresponding to SRS trigger state 1, where SRS resource set 1 includes SRS resources 1 and 3, and the time offset corresponding to SRS resource set 1 is 4;
by executing step S130, the transmission time corresponding to SRS resource set 1 is obtained as time slot n + 8.
As can be seen from the above process, when resource collision occurs in the time slot n +8 between the SRS resource set 0 and the SRS resource set 1, which SRS resource set is to be transmitted and which SRS resource set is not to be transmitted may be determined according to the receiving time (time slot n) of the SRS trigger state indication information corresponding to the SRS resource set 0 and the receiving time (time slot n +4) of the SRS trigger state indication information corresponding to the SRS resource set 1.
Preferably, as shown in fig. 2, SRS resource set 0 may not be transmitted, and later triggered SRS resource set 1 will be transmitted in slot n +8, or,
alternatively, SRS resource set 1 may not be transmitted, and the earlier triggered SRS resource set 0 will be transmitted in slot n + 8.
Of course, since a plurality of SRS resources may be transmitted in one slot, and only symbols occupied by some SRS resources may collide in the slot n +8 between the SRS resource set 0 and the SRS resource set 1, it may also be:
not sending the SRS resource with conflict in the SRS resource set 0, and at the moment, continuing sending the SRS resource without conflict in the SRS resource set 0; the later triggered SRS resource set 1 will be transmitted in slot n +8, or,
optionally, the SRS resource with collision in the SRS resource set 1 may not be transmitted, and the SRS resource without collision in the SRS resource set 1 will continue to be transmitted; the earlier triggered SRS resource set 0 will be transmitted in slot n + 8.
Preferably, in the embodiment shown in fig. 1, a time window may also be determined, where the time window may be understood as a time interval, and thus, step S140 of the embodiment shown in fig. 1 may specifically be: transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set in the time window; meanwhile, the first SRS resource set corresponding to the transmission time outside the time window may not be transmitted.
The starting time of the time window may be: receiving a time of the first SRS trigger state indication information; alternatively, the starting time of the time window may be: and in the sending time corresponding to the at least one first SRS resource set, sending time with the shortest time interval from the receiving of the first SRS trigger state indication information.
The time window is configured by the network device through a high-level signaling, or the time window is agreed based on a protocol.
To illustrate the concept of the time window mentioned above in detail, two examples will be presented below, see fig. 3 and 4:
as in the embodiment shown in fig. 3, the terminal device receives SRS trigger state indication information in the time slot n by performing the step S110, where the SRS trigger state indication information indicates an SRS trigger state 0;
then, by executing step S120, the SRS trigger state 0 is obtained and the SRS resource set 0 and the SRS resource set 1 are simultaneously indicated, wherein
The SRS resource set 0 comprises SRS resources 0 and 2; the time offset corresponding to the SRS resource set 0 is 4;
SRS resource set 1 includes SRS resources 1 and 3. The time offset corresponding to the SRS resource set 1 is 6;
by executing step S130, it is determined that the transmission time corresponding to SRS resource set 0 is timeslot n + 4;
and determining that the sending time corresponding to the SRS resource set 1 is a time slot n + 6.
Meanwhile, the time window is determined to be 4 time slots, and the starting time of the time window is as follows: a transmission time (slot n +4) having a shortest interval from the time (slot n) for receiving the first SRS trigger state indication information; the end time of the time window is time slot n +8,
by executing step S140, since the transmission time corresponding to SRS resource set 0 is time slot n + 4; the sending time corresponding to the SRS resource set 1 is a time slot n +6, and is within a time window (the starting time is a time slot n + 4; and the ending time is a time slot n +8), so step S140 may specifically be:
sending an SRS resource set 0 in a time slot n + 4; SRS resource set 1 is transmitted in slot n + 6.
Referring to another embodiment, as shown in fig. 4, the terminal device receives SRS trigger state indication information in a time slot n by performing the step S110, where the SRS trigger state indication information indicates an SRS trigger state 0;
then, by executing step S120, the SRS trigger state 0 is obtained and the SRS resource set 0 and the SRS resource set 1 are simultaneously indicated, wherein
The SRS resource set 0 comprises SRS resources 0 and 2; the time offset corresponding to the SRS resource set 0 is 4;
SRS resource set 1 includes SRS resources 1 and 3. The time offset corresponding to the SRS resource set 1 is 8;
by executing step S130, it is determined that the transmission time corresponding to SRS resource set 0 is timeslot n + 4;
and determining that the sending time corresponding to the SRS resource set 1 is a time slot n + 8.
Meanwhile, the time window is determined to be 2 time slots, and the starting time of the time window is as follows: a transmission time (slot n +4) having a shortest interval from the time (slot n) for receiving the first SRS trigger state indication information; the end time of the time window is time slot n +6,
by executing step S140, since the transmission time corresponding to SRS resource set 0 is time slot n +4, within the time window (the starting time is time slot n + 4; the ending time is time slot n + 6);
the sending time corresponding to the SRS resource set 1 is a time slot n +8, and is outside the time window (the starting time is the time slot n + 4; and the ending time is the time slot n +6), so step S140 may specifically be:
sending an SRS resource set 0 in a time slot n + 4; SRS resource set 1 is no longer transmitted in slot n + 8.
By determining the operation of the time window in the embodiments shown in fig. 3 and fig. 4, in the embodiment shown in fig. 2 where the resource conflict occurs, it may also be performed to determine whether the determined transmission time is within the time window, and if so, then perform the operation steps of the embodiment shown in fig. 2 where the resource conflict occurs.
In addition, in the several embodiments described above, the terminal device may configure different SRS resource sets to alternately or sequentially transmit, or to be: the terminal device does not expect that the network configures the same SRS resource set to continuously transmit, which is now described by way of example:
in the embodiment shown in fig. 1, if the number of the first SRS resource sets obtained by S120 is one, at this time, when the SRS is executed according to S110 to S140, one SRS resource set may be transmitted at a determined transmission time, and if the steps of S110 to S140 are repeatedly executed, a phenomenon that the same SRS resource set is continuously transmitted may occur, in order to avoid the continuous transmission of the same SRS resource set, the network device may alternately transmit different SRS trigger state indication information (different SRS trigger state indication information correspond to different SRS resource sets) to the terminal device, but the SRS trigger state indication information may have a situation of being lost, and in order to avoid the continuous transmission of the same SRS resource set when the SRS trigger state indication information is lost, after the execution according to the embodiment shown in fig. 1 is completed, the method may further include the following steps:
receiving third SRS triggering state indication information, wherein the third SRS triggering state indication information is triggering state indication information which is received for the first time by a terminal device after receiving the first SRS triggering state indication information, and the third SRS triggering state indication information has the same content as the first SRS triggering state indication information; then
Ignoring the third SRS trigger state indication information.
Generally, the terminal device executes steps S110 to S140 in the embodiment shown in fig. 1 when receiving the SRS trigger state indication information, and the terminal device "ignores the third SRS trigger state indication information" mentioned here, that is, does not execute steps S110 to S140 in the embodiment shown in fig. 1 any more.
Through the above operation, the same SRS resource set can be prevented from being continuously transmitted.
In addition, in the embodiment shown in fig. 1, if the number of the first SRS resource sets obtained in step S120 is two, in this case, the description is made with reference to the example of fig. 3.
When the execution is performed according to S110 to S140 in fig. 3, SRS trigger state indication information is received in slot n, SRS resource set 0 is transmitted in slot n +4, and SRS resource set 1 is transmitted in slot n + 6.
Assuming that the terminal device receives the same SRS trigger state indication information again in the slot n +1, a scenario may occur in which the next SRS resource set 0 is transmitted in the slot n +5, the next SRS resource set 1 is transmitted in the slot n +7, and the same SRS resource set is continuously transmitted in the same scenario, so as to avoid continuous transmission of the same SRS resource set, after the execution is performed according to the embodiment shown in fig. 1, the method may further include the following steps:
1) receiving fourth SRS triggering state indication information, wherein the fourth SRS triggering state indication information has the same content as the first SRS triggering state indication information;
2) obtaining at least one fourth SRS resource set and a time offset corresponding to the at least one fourth SRS resource set based on the fourth SRS triggering state indication information;
3) determining a transmission time corresponding to the at least one fourth SRS resource set based on the time for receiving the fourth SRS triggering state indication information and the time offset corresponding to the at least one fourth SRS resource set;
4) if the transmission time corresponding to a fourth target SRS resource set in the at least one fourth SRS resource set is within a specified time interval, then
Not transmitting the fourth set of target SRS resources, or not transmitting the at least one fourth set of SRS resources;
wherein the designated time interval is a time interval consisting of an earliest transmission time (slot n +4 in fig. 3) and a latest transmission time (slot n +6 in fig. 3) among the transmission times corresponding to the at least one first SRS resource set.
Through the above operation, the same SRS resource set can be prevented from being continuously transmitted.
Fig. 5 is a schematic flow chart of a method for receiving a sounding reference signal according to an embodiment of the present invention, which can be applied to a network device. As shown in fig. 5, the method includes:
s510: sending aperiodic first SRS triggering state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set;
s520: and receiving a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, wherein the transmission time corresponding to the at least one first SRS resource set is determined by the terminal equipment based on the time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
By the sounding reference signal receiving method provided by the embodiments of the present specification, the terminal device may determine the transmission time corresponding to the SRS resource set based on the time for receiving the SRS trigger state indication information and the time offset corresponding to the SRS resource set, and finally transmit the corresponding SRS resource set at the determined transmission time, thereby solving the problem that the terminal device cannot determine at which time the SRS resource can be transmitted. Meanwhile, the problem caused by inconsistent understanding about the sending time between the network equipment and the terminal equipment can be avoided, and the transmission efficiency of the SRS resource set is improved conveniently.
Furthermore, in the above embodiments, different SRS resource sets may be transmitted alternately or sequentially, or may be referred to as: optionally, as an embodiment, the method further includes that the terminal device does not expect that the network device configures the same SRS resource set to continuously transmit: if the same first SRS resource set is continuously received by the network device, the same first SRS resource set is discarded, that is, the received first SRS resource set is processed, and the subsequent same first SRS resource set is discarded.
In addition, the network device considers the beginning of a new transmission of the at least one aperiodic SRS resource when receiving the first set of SRS resources. As an example shown in fig. 3, the network device receives the SRS resource set 0 at a slot n +4 and receives the SRS resource set 1 at a slot n +6, if the terminal device repeatedly performs operations S110 to S140, the network device may receive the SRS resource set 0 and receive the SRS resource set 1 multiple times, and consider that a new transmission of the at least one aperiodic SRS resource starts each time the SRS resource set 0 is received, and if a certain SRS resource set 0 fails to be transmitted, only the SRS resource set 1 is received, and may discard the SRS resource set 1.
The sounding reference signal transmission method according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 5. A terminal device according to an embodiment of the present invention will be described in detail below with reference to fig. 6.
Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 6, the terminal apparatus 600 includes:
a receiving module 601, configured to receive aperiodic SRS trigger state indication information from a network device;
a resource set obtaining module 602, configured to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS trigger state indication information;
a transmission time determining module 603, configured to determine a transmission time corresponding to the at least one first SRS resource set based on a time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set;
a transmitting module 604 may be configured to transmit the corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set.
The terminal device 600 according to the embodiment of the present invention may refer to the flow corresponding to the method shown in fig. 1 in the embodiment of the present invention, and each unit/module and the other operations and/or functions in the terminal device 600 are respectively for implementing the corresponding flow in the method shown in fig. 1, and are not described again herein for brevity.
Optionally, as an embodiment, if a network device configures a first target SRS resource set and a second target SRS resource set for the terminal device at a target transmission time, and there is a resource conflict between the first target SRS resource set and the second target SRS resource set, the terminal device 600 further includes:
a processing module (not shown) configured to not transmit the second set of target SRS resources; alternatively, the first and second electrodes may be,
not transmitting SRS resources in the second SRS resource set, wherein resource collision occurs;
wherein the first target set of SRS resources is one of the at least one first set of SRS resources; the target transmission time corresponds to the first target SRS resource set;
the time for receiving the first SRS trigger state indication information is after or before the time for receiving the second SRS trigger state indication information, and the second SRS trigger state indication information corresponds to the second target SRS resource set.
Optionally, as an embodiment, the terminal device 600 further includes:
a time window determination module (not shown) for determining a time window;
the transmitting module 604 is configured to transmit the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set within the time window.
Optionally, as an embodiment, the starting time of the time window is: receiving a time of the first SRS trigger state indication information; or
The starting time of the time window is as follows: and in the sending time corresponding to the at least one first SRS resource set, sending time with the shortest time interval from the receiving of the first SRS trigger state indication information.
Optionally, as an embodiment, the time window is configured by the network device through a high layer signaling, or the time window is based on a protocol convention.
Alternatively, the processor may, as an embodiment,
the receiving module 601 may further be configured to: receiving third SRS triggering state indication information, wherein the third SRS triggering state indication information is triggering state indication information which is received for the first time by a terminal device after receiving the first SRS triggering state indication information, and the third SRS triggering state indication information has the same content as the first SRS triggering state indication information; then
The processing module may be further configured to: ignoring the third SRS trigger state indication information.
Alternatively, the processor may, as an embodiment,
the receiving module 601 may be further configured to receive fourth SRS trigger state indication information, where the fourth SRS trigger state indication information has the same content as the first SRS trigger state indication information;
a resource set obtaining module 602, further configured to obtain at least one fourth SRS resource set and a time offset corresponding to the at least one fourth SRS resource set based on the fourth SRS trigger state indication information;
the transmission time determining module 603 may be further configured to determine, based on the time for receiving the fourth SRS trigger state indication information and the time offset corresponding to the at least one fourth SRS resource set, the transmission time corresponding to the at least one fourth SRS resource set;
if the transmission time corresponding to a fourth target SRS resource set in the at least one fourth SRS resource set is within a specified time interval, then
The processing module may be further configured to not transmit the fourth target SRS resource set, or not transmit the at least one fourth SRS resource set;
wherein the designated time interval is a time interval composed of the earliest transmission time and the latest transmission time among the transmission times corresponding to the at least one first SRS resource set.
Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in fig. 7, the network device 700 includes:
an indication information sending module 701, configured to send aperiodic first SRS trigger state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set;
the SRS resource set receiving module 702 may be configured to receive a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, where the transmission time corresponding to the at least one first SRS resource set is determined by the terminal device based on a time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
The network device 700 according to the embodiment of the present invention may refer to the flow corresponding to the method shown in fig. 5 in the embodiment of the present invention, and each unit/module and the other operations and/or functions in the network device 700 are respectively for implementing the corresponding flow in the embodiment of the method shown in fig. 5, and are not described herein again for brevity.
Alternatively, if the SRS resource set receiving module 702 continuously receives the same first SRS resource set, the same first SRS resource set is discarded.
Fig. 8 is a block diagram of a terminal device of another embodiment of the present invention. The terminal apparatus 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal device 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.
The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 802 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.
The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.
In this embodiment of the present invention, the terminal device 800 further includes: a computer program stored 802 on the memory and executable on the processor 801, which when executed by the processor 801, carries out the steps of the method shown in fig. 1.
The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and combines the hardware to complete the steps of the method. In particular, the computer readable storage medium has stored thereon a computer program, which when executed by the processor 801, performs the steps of the embodiments of the method 100 as described above.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The terminal device 800 can implement each process implemented by the terminal device in the foregoing embodiments, and details are not described here to avoid repetition.
Referring to fig. 9, fig. 9 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement the details of the method embodiment 500 and achieve the same effects. As shown in fig. 9, the network device 900 includes: a processor 901, a transceiver 902, a memory 903, and a bus interface, wherein:
in this embodiment of the present invention, the network device 900 further includes: a computer program stored on the memory 903 and executable on the processor 901, the computer program, when executed by the processor 901, implementing the steps of the method shown in fig. 5.
In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 901 and various circuits of memory represented by memory 903 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 902 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.
The processor 901 is responsible for managing a bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiments shown in fig. 1 and fig. 5, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A method for sending sounding reference signals, the method being performed by a terminal device, the method comprising:
receiving aperiodic SRS triggering state indication information from network equipment;
obtaining at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS triggering state indication information;
determining a transmission time corresponding to the at least one first SRS resource set based on the time for receiving the first SRS triggering state indication information and the time offset corresponding to the at least one first SRS resource set;
and transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set.
2. The method of claim 1, wherein if a network device configures a first set of target SRS resources and a second set of target SRS resources for the terminal device at a target transmission time, and there is a resource collision between the first set of target SRS resources and the second set of target SRS resources, the method further comprises:
not transmitting the second set of target SRS resources; alternatively, the first and second electrodes may be,
not transmitting SRS resources in the second target SRS resource set, wherein resource conflict occurs;
wherein the first target set of SRS resources is one of the at least one first set of SRS resources; the target transmission time corresponds to the first target SRS resource set;
the time for receiving the first SRS trigger state indication information is after or before the time for receiving the second SRS trigger state indication information, and the second SRS trigger state indication information corresponds to the second target SRS resource set.
3. The method of claim 1, wherein the method further comprises:
determining a time window;
wherein the transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set comprises:
and transmitting the corresponding first SRS resource set at the transmission time corresponding to the at least one first SRS resource set in the time window.
4. The method of claim 3,
the starting time of the time window is as follows: receiving a time of the first SRS trigger state indication information; or
The starting time of the time window is as follows: and in the sending time corresponding to the at least one first SRS resource set, sending time with the shortest time interval from the receiving of the first SRS trigger state indication information.
5. The method of claim 4,
the time window is configured by the network device through higher layer signaling, or,
the time window is based on protocol conventions.
6. The method of claim 1, wherein the method further comprises:
receiving third SRS triggering state indication information, wherein the third SRS triggering state indication information is triggering state indication information which is received for the first time by a terminal device after receiving the first SRS triggering state indication information, and the third SRS triggering state indication information has the same content as the first SRS triggering state indication information; then
Ignoring the third SRS trigger state indication information.
7. The method of claim 1, wherein the method further comprises:
receiving fourth SRS triggering state indication information, wherein the fourth SRS triggering state indication information has the same content as the first SRS triggering state indication information;
obtaining at least one fourth SRS resource set and a time offset corresponding to the at least one fourth SRS resource set based on the fourth SRS triggering state indication information;
determining a transmission time corresponding to the at least one fourth SRS resource set based on the time for receiving the fourth SRS triggering state indication information and the time offset corresponding to the at least one fourth SRS resource set;
if the transmission time corresponding to a fourth target SRS resource set in the at least one fourth SRS resource set is within a specified time interval, then
Not transmitting the fourth set of target SRS resources, or not transmitting the at least one fourth set of SRS resources;
wherein the designated time interval is a time interval composed of the earliest transmission time and the latest transmission time among the transmission times corresponding to the at least one first SRS resource set.
8. A sounding reference signal receiving method, wherein the method is performed by a network device, and wherein the method comprises:
sending aperiodic first SRS triggering state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set;
and receiving a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, wherein the transmission time corresponding to the at least one first SRS resource set is determined by the terminal equipment based on the time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
9. The method of claim 8, wherein the method further comprises:
discarding the same first set of SRS resources if the same first set of SRS resources are received consecutively.
10. A terminal device, comprising:
a receiving module, configured to receive aperiodic SRS trigger state indication information from a network device;
a resource set obtaining module, configured to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set based on the first SRS trigger state indication information;
a transmission time determining module, configured to determine, based on a time when the first SRS trigger state indication information is received and a time offset corresponding to the at least one first SRS resource set, a transmission time corresponding to the at least one first SRS resource set;
and a transmitting module, configured to transmit the corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set.
11. A network device, comprising:
an indication information sending module, configured to send aperiodic first SRS trigger state indication information; the first SRS triggering state indication information is used for enabling terminal equipment to obtain at least one first SRS resource set and a time offset corresponding to the at least one first SRS resource set;
an SRS resource set receiving module, configured to receive a corresponding first SRS resource set at a transmission time corresponding to the at least one first SRS resource set, where the transmission time corresponding to the at least one first SRS resource set is determined by a terminal device based on a time for receiving the first SRS trigger state indication information and a time offset corresponding to the at least one first SRS resource set.
12. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the sounding reference signal transmitting method according to any of claims 1 to 7.
13. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements the steps of the sounding reference signal receiving method according to claim 8 or 9.
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| EP4101105A4 (en) * | 2020-02-04 | 2023-11-01 | Qualcomm Incorporated | Dynamic aperiodic srs slot offset indication |
| CN112039646B (en) * | 2020-08-11 | 2023-04-28 | 中国信息通信研究院 | Uplink positioning pilot frequency indicating method and device |
| WO2022036719A1 (en) * | 2020-08-21 | 2022-02-24 | Oppo广东移动通信有限公司 | Wireless communication method and device |
| WO2022077322A1 (en) * | 2020-10-15 | 2022-04-21 | 富士通株式会社 | Sounding reference signal sending method and apparatus, and sounding reference signal receiving method and apparatus |
| CN114390533A (en) * | 2020-10-20 | 2022-04-22 | 维沃移动通信有限公司 | Aperiodic RS transmission method, terminal and network side equipment |
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| CN114844604A (en) * | 2021-02-01 | 2022-08-02 | 中国移动通信有限公司研究院 | Triggering and sending method of non-periodic sounding reference signal, terminal and equipment |
| BR112023020260A2 (en) | 2021-04-03 | 2023-11-14 | Apple Inc | IMPROVEMENT OF AN APERIODIC SRS DRIVING MECHANISM |
| WO2022236454A1 (en) | 2021-05-08 | 2022-11-17 | Apple Inc. | Triggering aperiodic channel state information (csi) reporting based on downlink control information (dci) |
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