CN110324124A - The transmission method and terminal device of aperiodic sounding reference signal SRS - Google Patents
The transmission method and terminal device of aperiodic sounding reference signal SRS Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
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Abstract
The present invention provides the transmission method and terminal device of a kind of aperiodic sounding reference signal SRS, this method comprises: receiving aperiodic SRS in time slot n sends instruction, the aperiodic SRS sends instruction for triggering and the transmission of the associated SRS resource set of the aperiodic SRS triggering state of target；The preconfigured SRS resource with the associated SRS resource set of the aperiodic SRS triggering state of the target is transmitted in time slot n+k to time slot n+k+m-1；The embodiment of the present invention can fail to avoid aperiodic SRS transmission, improve the transmission performance of aperiodic SRS, and then can promote the acquisition performance of BTS channel status information.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a transmission method for an aperiodic sounding reference signal SRS and a terminal device.
Background
Fifth generation 5G (5)thGeneration) the mobile communication system supports terminals UE 1T2R (1Transmit 2Receive ), 2T4R ((2Transmit 4Receive, 2Transmit 4 Receive), and 1T4R (1Transmit4Receive ) antenna switching transmissionThe characteristic is particularly suitable for scenes with reciprocity between uplink and downlink, and can assist the base station to acquire all downlink channel information. The configuration of terminal antenna switching transmission is related to the terminal capability, and can be realized by configuring Sounding Reference Signal (SRS) transmission through high-level signaling.
When a terminal adopts 1T2R antenna switching transmission, a high-level signaling configures 1 SRS resource set containing 2 SRS resources, the 2 SRS resources are transmitted on different symbols, each SRS contains 1 SRS port, and each SRS port corresponds to a different terminal antenna port.
When a terminal adopts 2T4R antenna switching transmission, a high-level signaling configures 1 SRS resource set containing 2 SRS resources, the 2 SRS resources are transmitted on different symbols, each SRS resource contains 1 SRS port pair, and each SRS port pair corresponds to different terminal antenna port pairs.
When a terminal adopts 1T4R antenna switching transmission, a high-level signaling configures 1 SRS resource set containing 4 SRS resources, the 4 SRS resources are transmitted on different symbols, each SRS resource contains 1 SRS port, and each SRS port corresponds to a different terminal antenna port.
When the terminal antenna is switched and transmitted, at least 15us of antenna switching delay needs to be reserved among different SRS resources in 1 SRS resource set as a guard interval, and the minimum guard interval is defined as shown in table 1:
TABLE 1 terminal antenna switching guard interval
| Number of value configuration | Sub-carrier bandwidth (KHz) | Guard interval (symbol) |
| 0 | 15 | 1 |
| 1 | 30 | 1 |
| 2 | 60 | 1 |
| 3 | 120 | 2 |
In a 5G mobile communication system, in 1 time slot, SRS resources can occupy the last 6 symbols, and higher layer signaling can configure SRS to occupy 1/2/4 symbol transmissions. Therefore, for terminal 1T2R and 2T4R antenna switching transmission, it can be completed within 1 slot. However, for terminal 1T4R antenna switching transmission, at least 2 time slots are required.
According to different SRS transmission periods, periodic SRS transmission, semi-continuous SRS transmission and aperiodic triggering SRS are supported. When the SRS is triggered in an aperiodic way, the high-level signaling configures an SRS resource set and a time slot offset corresponding to each SRS triggering state, wherein the time slot offset indicates the time slot-level interval between the time when the terminal receives the SRS triggering and the time when the terminal actually sends the SRS triggering.
In order to support more diversified service transmission, the 5G also supports flexible time slot configuration, and uplink and downlink symbol transmission can be dynamically configured in different time slots. Similar problems may exist with subsequently evolving communication systems.
The prior art may not have enough symbols in 1 slot for terminal 1T2R and 2T4R antenna switching transmission due to support of dynamic slot configuration, and may also not have enough symbols in 2 consecutive slots for terminal 1T4R antenna switching transmission.
When the SRS is configured by the higher layer signaling and sent by aperiodic triggering, 1 SRS resource set may be transmitted in 1 or more slots, and the SRS transmission may fail due to the aperiodic triggering of SRS offset configuration.
Disclosure of Invention
The embodiment of the invention provides a transmission method of an aperiodic Sounding Reference Signal (SRS) and terminal equipment, which are used for solving the problem that transmission failure is easily caused when one SRS resource set is transmitted in a plurality of time slots in the prior art.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows: a transmission method of an aperiodic Sounding Reference Signal (SRS) is applicable to terminal equipment and comprises the following steps:
receiving an aperiodic SRS sending instruction in a time slot n, wherein the aperiodic SRS sending instruction is used for triggering transmission of an SRS resource set associated with a target aperiodic SRS triggering state, and n is an integer greater than or equal to 0;
and transmitting the SRS resource in the pre-configured SRS resource set associated with the target aperiodic SRS triggering state from a time slot n + k to a time slot n + k + m-1, wherein m is an integer larger than or equal to 1, k is a time slot offset between the receiving of the aperiodic SRS sending instruction and the beginning of transmitting the SRS resource set, and k is an integer larger than or equal to 0.
An embodiment of the present invention further provides a terminal device, including:
a receiving module, configured to receive an aperiodic SRS transmission instruction in a timeslot n, where the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with a target aperiodic SRS trigger state, where n is an integer greater than or equal to 0;
and a transmission module, configured to transmit, in a slot n + k to a slot n + k + m-1, an SRS resource in an SRS resource set associated with the target aperiodic SRS trigger state, where m is an integer greater than or equal to 1, k is a slot offset between receiving an aperiodic SRS transmission instruction and starting transmission of the SRS resource set, and k is an integer greater than or equal to 0.
The embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the steps of the transmission method for the aperiodic sounding signal SRS described above are implemented.
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 steps of the transmission method for the aperiodic sounding signal SRS are implemented as described above.
The embodiment of the invention provides a transmission method of an aperiodic SRS when an SRS resource set cannot be completely transmitted in 1 time slot, which can avoid the transmission failure of the aperiodic SRS, improve the transmission performance of the aperiodic SRS and further improve the acquisition performance of the channel state information of a base station.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart illustrating steps of a method for transmitting an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a first example of a transmission method for an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a second example of a transmission method of an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a third example of a transmission method of an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a fourth example of a transmission method of an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a fifth example of a transmission method of an aperiodic sounding reference signal SRS according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 8 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 9 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
As shown in fig. 1, an embodiment of the present invention provides a method for transmitting an aperiodic sounding reference signal SRS, which is applicable to a terminal device, and includes:
step 101, receiving an aperiodic SRS transmission instruction in a slot n, where the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with a target aperiodic SRS trigger state, where n is an integer greater than or equal to 0.
In this step, a network device (e.g., a base station) may send the aperiodic SRS transmission instruction through downlink control information, that is, a terminal device receives the downlink control information in a time slot n, where the downlink control information carries the aperiodic SRS transmission instruction.
Preferably, the aperiodic SRS transmission instruction includes: for example, if the aperiodic SRS trigger state is "00", the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with the aperiodic SRS trigger state "00" (specifically, the aperiodic SRS trigger state 0 is the target aperiodic SRS trigger state). Alternatively, the aperiodic SRS transmission instruction includes: identification information of an SRS resource set associated with the target aperiodic SRS trigger state, for example, the SRS resource set is "01", at this time, the aperiodic SRS transmission instruction is used to trigger transmission of the SRS resource set "01", and further, based on the aperiodic SRS transmission instruction, both the network device and the terminal device also determine the target aperiodic SRS trigger state of the SRS resource set "01"; or the aperiodic SRS transmission indication adopts other identification information for indication, which is not described herein any more.
102, transmitting pre-configured SRS resources in an SRS resource set associated with the target aperiodic SRS trigger state from a time slot n + k to a time slot n + k + m-1, wherein m is an integer greater than or equal to 1; k is a slot offset between the reception of the aperiodic SRS sending instruction and the beginning of the transmission of the SRS resource set, and k is an integer greater than or equal to 0.
In this step, the process of the network device pre-configuring the SRS resource set associated with the target aperiodic SRS trigger state is as follows: the network device configures SRS resource sets and slot offsets respectively associated with one or more aperiodic SRS trigger states through high-level signaling or dedicated signaling. For example, the network device configures or signals through a high layer signaling, the SRS resource set 0 associated with the aperiodic SRS trigger state 0, and the SRS resource set 1 associated with the aperiodic SRS trigger state 1; the SRS resource set 0 comprises an SRS resource 0, an SRS resource 1, an SRS resource 2 and an SRS resource 3; SRS resource set 1 includes SRS resources 4 and SRS resources 5.
It should be noted that, for configuration of SRS resource sets in multiple aperiodic SRS trigger states, a network device may configure the SRS resource sets simultaneously through one higher layer signaling or dedicated signaling, or may configure the SRS resource sets separately through multiple higher layer signaling or dedicated signaling, which is not limited herein.
Preferably, k in step 102 is a slot offset configured by the network device through higher layer signaling, where the slot offset k is used to indicate a slot-level interval between when the terminal device receives the aperiodic SRS transmission instruction and when the terminal device actually starts to transmit the SRS resource, that is, k is a slot.
The specific setting of the value of m is mainly referred to the following parameters: the number of SRS resources contained in the SRS resource set which is associated with the target aperiodic SRS triggering state and is to be transmitted, and the number of SRS resources which can be transmitted at most in each of a plurality of time slots starting from the time slot n + k. For example, when 4 SRS resources are included in the SRS resource set to be transmitted and associated with the target aperiodic SRS trigger state, if each of a plurality of slots starting from the slot n + k is configured to transmit 2 SRS resources at most, then m may be set to be equal to 2 or less than 2; if each of a plurality of slots starting from the slot n + k is configured to transmit 1 SRS resource at the maximum, m may be set equal to 4 or less than 4.
It is further noted that step 102 specifically includes: and transmitting part of SRS resources or all SRS resources in the SRS resource set associated with the target aperiodic SRS triggering state from the time slot n + k to the time slot n + k + m-1. According to the slot format and the network side configuration of each slot between the slot n + k and the slot n + k + m-1, the SRS resource in the SRS resource set associated with the target aperiodic SRS trigger state may be transmitted in each slot between the slot n + k and the slot n + k + m-1, or may be transmitted in a part of the slots between the slot n + k and the slot n + k + m-1, and the specific transmission condition is determined according to the slot format and the network side configuration in the actual use process, which is not specifically limited herein.
In the above embodiment of the present invention, the value of m can be divided into the case where m is equal to 1 and the case where m is greater than or equal to 2.
On one hand, under the condition that m is equal to 1, transmitting SRS resources in an SRS resource set in 1 time slot from a time slot n + k to a time slot n + k +1-1, namely transmitting the SRS resources in the SRS resource set in the time slot n + k; in this case, the terminal transmits only a part of SRS resources in the SRS resource set in slot n + k, and the terminal does not transmit the remaining SRS resources in the SRS resource set.
Specifically, step 102 includes:
acquiring the number A of the most transmissible SRS resources in a time slot n + k, wherein A is an integer greater than or equal to 1; the number of SRS resources that can be transmitted at most in the timeslot n + k is determined by the timeslot format and the network side configuration, and the timeslot format can be configured by the network device in advance through higher layer signaling or dedicated signaling (e.g., radio resource control RRC signaling).
B SRS resources in an SRS resource set associated with the target aperiodic SRS triggering state are transmitted in a time slot n + k, wherein B is an integer greater than or equal to 1, B is less than or equal to A, and B is less than or equal to the number of the SRS resources in the SRS resource set.
In this step, for the remaining SRS resources in the SRS resource set associated with the target aperiodic SRS trigger state except for the B SRS resources transmitted in the time slot n + k, the terminal does not transmit the remaining SRS resources in the SRS resource set.
Preferably, B is equal to a when the number of SRS resources in the set of SRS resources associated with the target aperiodic SRS trigger state is greater than a. For example, the SRS resource set associated with the target aperiodic SRS trigger state includes 6 SRS resources, and the maximum number a of the transmittable SRS resources in the slot n + k is 3, then 3 SRS resources (i.e., B is equal to 3) in the SRS resource set associated with the target aperiodic SRS trigger state are transmitted in the slot n + k.
Example 1
As shown in fig. 2, it is assumed that the aperiodic SRS trigger state 0 configured by the higher layer signaling corresponds to an SRS resource set 0, the SRS resource set 0 includes SRS resources 0 to 3, and the offset of the aperiodic SRS transmission instruction is 4. When the terminal device receives the non-periodic SRS trigger state 0 triggered by the downlink control information at the time slot n, the terminal device starts to transmit the SRS resource set 0 at the time slot n + 4. Due to the influence of the slot format and the network side configuration, at most 2 SRS resources can be transmitted in the slot n + k, so the SRS resource 0 and the SRS resource 2 are transmitted in the slot n +4, and the SRS resource 1 and the SRS resource 3 are not transmitted any more.
On the other hand, when m is greater than or equal to 2, in this case, the terminal transmits all or part of the SRS resources in the SRS resource set from slot n + k to slot n + k + m-1.
Specifically, step 102 includes:
acquiring the maximum number of the SRS resources which can be transmitted in each time slot from the time slot n + k to the time slot n + k + m-1; the number of the SRS resources that can be transmitted at most in each of the above time slots n + k to n + k + m-1 is determined by the slot format and the network side configuration, and the slot format can be configured in advance by the network device through higher layer signaling or dedicated signaling (e.g., radio resource control RRC signaling).
Sequentially transmitting SRS resources in an SRS resource set associated with the target aperiodic SRS triggering state from a time slot n + k to a time slot n + k + m-1; the number of SRS resources transmitted in each time slot is less than or equal to the maximum number of SRS resources transmittable in the time slot, and the number of SRS resources transmitted in each time slot is less than or equal to the number of SRS resources in the SRS resource set.
In the embodiment of the present invention, neither the terminal device nor the network device expects the network device to configure the time domain resources for arbitrary SRS resource transmission to collide, so that the total number of SRS resources transmitted in the time slot n + k to the time slot n + k + m-1 is equal to the number of SRS resources in the SRS resource set associated with the target aperiodic SRS trigger state under the condition that it is assumed that the time domain resources for arbitrary SRS resources do not collide. For example, if the SRS resource set associated with the target aperiodic SRS trigger state includes 6 SRS resources, the total number of SRS resources transmitted in the above slot n + k to slot n + k + m-1 is also 6, and the number of SRS resources transmitted in each slot of the slot n + k to slot n + k + m-1 is determined by the slot format and the network side configuration.
Preferably, the number of SRS resources transmitted in any two time slots from the time slot n + k to the time slot n + k + m-1 is the same, i.e. the number of SRS resources transmitted in each time slot is the same. The number of the SRS resources which can be transmitted at most in each time slot from the time slot n + k to the time slot n + k + m-1 can be determined to be the same according to the time slot format and the network side configuration. The number of SRS resources transmitted in each time slot is the same in the mode, and the complexity of the base station can be simplified. In this way, each slot from slot n + k to slot n + k + m-1 is used for transmitting SRS resources.
Example two (m equals 2):
as shown in fig. 3, it is assumed that the aperiodic SRS trigger state 0 corresponds to an SRS resource set 0 in the higher layer signaling configuration, the SRS resource set 0 includes SRS resources 0 to 3, and the offset of the aperiodic SRS transmission instruction is 4. When the terminal device receives the non-periodic SRS trigger state 0 triggered by the downlink control information at the time slot n, the terminal device starts to transmit the SRS resource set 0 at the time slot n + 4. Because 2 SRS resources can be transmitted at most in one slot due to the slot configuration, SRS resource 0 and SRS resource 2 are preferentially transmitted in the n +4 slot, and SRS resource 1 and SRS resource 3 are transmitted in the n +5 slot.
Although transmitting the same number of SRS resources in each slot may simplify the base station implementation complexity, it also restricts the configuration of the slot format, reducing the flexibility of the slot configuration. Preferably, the embodiment of the present invention further provides another implementation manner, where the number of SRS resources transmitted in at least two slots between the slot n + k and the slot n + k + m-1 is different, that is, the number of SRS resources transmitted in a plurality of slots is different. The number of the SRS resources which can be transmitted at most in each time slot from the time slot n + k to the time slot n + k + m-1 can be determined to be different according to the time slot format and the network side configuration. The SRS resources transmitted in a plurality of time slots are different in number, so that the configuration of a flexible time slot format can be supported, and the method is suitable for more scenes. In this manner, SRS resources may be transmitted in a portion of the slot between slot n + k and slot n + k + m-1 (i.e., one or more slots between slot n + k and slot n + k + m-1 may be configured to not transmit SRS resources or not configured for SRS resource transmission).
Example three (m equals 3):
as shown in fig. 4, it is assumed that the aperiodic SRS trigger state 0 configured by the higher layer signaling corresponds to an SRS resource set 0, the SRS resource set 0 includes SRS resources 0 to 3, and the offset of the aperiodic SRS transmission instruction is 4. The terminal receives the non-periodic SRS triggering state 0 transmission triggered by the downlink control information in the time slot n, and then the terminal starts to transmit the SRS resource set 0 in the time slot n + 4. Due to the influence of the slot format and the network side configuration, at most 3 SRS resources can be transmitted in the n +4 slot, no SRS resource is configured in the n +5 slot, and at most 1 SRS resource can be transmitted in the n +6 slot, so SRS resources 0, 1 and 2 are preferentially transmitted in the n +4 slot, and SRS resource 3 is transmitted in the n +6 slot.
Further, in the foregoing embodiment of the present invention, the sequentially transmitting SRS resources in the SRS resource set associated with the target aperiodic SRS trigger state from a timeslot n + k to a timeslot n + k + m-1 includes:
and sequentially transmitting the SRS resources in the SRS resource set from the time slot n + k to the time slot n + k + m-1 according to the SRS resource sequence in the SRS resource set configured in advance.
In this step, the preset configuration may be configured by the network device through a high-level signaling or a dedicated signaling, or may be pre-agreed in a protocol. And the network equipment and the terminal equipment know in advance the SRS resource sequence in the pre-configured SRS resource set, so that the problem of inconsistent understanding of the network equipment and the terminal equipment is avoided, and the SRS transmission efficiency is improved.
Or sequentially transmitting the SRS resources in the SRS resource set from the time slot n + k to the time slot n + k + m-1 according to the SRS resource numbers in the SRS resource set.
Specifically, the SRS resources in the SRS resource set are transmitted in sequence according to the ascending order or the descending order or the odd-even order of the SRS resource numbers in the SRS resource set. It should be noted that, the network device and the terminal device of the transmission sequence of the SRS resource number are also known in advance, which can avoid the problem of inconsistent understanding of the network device and the terminal device, and improve the SRS transmission efficiency.
Bearing the above example, although both the terminal device and the network device do not expect the network device to configure time domain resources for arbitrary SRS resource transmission to collide, the situation of resource collision may still occur in the actual transmission process, specifically, in the case that there are SRS resource sets associated with at least 2 different aperiodic SRS trigger states in the target time slot between the time slot n + k and the time slot n + k + m-1, and time domain occupied symbols of the different SRS resource sets collide, the collision solution provided by the embodiment of the present invention includes:
acquiring at least 2 SRS resource sets which are collided;
and selecting a target SRS resource set from the at least 2 conflicting SRS resource sets to transmit in the target time slot according to the receiving time of the aperiodic SRS transmission instruction for transmitting the at least 2 conflicting SRS resource sets.
In this step, the transmission of the SRS resource set associated with the aperiodic SRS trigger state is triggered by the aperiodic SRS transmission instruction, and therefore the reception time of the aperiodic SRS transmission instruction corresponds to the trigger time of the corresponding SRS resource set. In short, when the time domain occupied symbols of at least two SRS resource sets collide, one of the at least two SRS resource sets (target SRS resource set) where the collision occurs in the transmission of the colliding target slot is determined according to the triggering time of the at least two SRS resource sets where the collision occurs; for example, the SRS resource set with the earlier trigger time is transmitted in the target slot, or the SRS resource set with the later trigger time is transmitted in the target slot.
Preferably, in order to avoid frequent collision of time domain occupied symbols of aperiodic SRS resources, in the above embodiment of the present invention, the selecting a target SRS resource set from the at least 2 colliding SRS resource sets according to a receiving time of an aperiodic SRS transmission instruction for transmitting the at least 2 colliding SRS resource sets to transmit in the target slot includes:
acquiring at least 2 time interval values between each receiving time of the non-periodic SRS sending instructions of at least 2 SRS resource sets which collide and a target time slot:
selecting a minimum time interval value from the at least 2 time interval values, and determining an SRS resource set corresponding to the minimum time interval value as the target SRS resource set;
and transmitting SRS resources of the target SRS resource set in the target time slot.
In the embodiment of the invention, the non-periodic SRS resource set triggered later is preferentially sent, so that the timeliness of part of the non-periodic SRS resource sets can be ensured, frequent collision of the non-periodic SRS resources can be avoided, and the SRS transmission efficiency is improved.
Further, in the above embodiment of the present invention, two processing manners are provided for an SRS resource set with a trigger time earlier in at least two SRS resource sets with collision:
the first method is as follows: stopping transmitting other SRS resource sets except the target SRS resource set in the SRS resource set with the conflict; i.e. the earlier triggered aperiodic SRS resource where the collision occurred will stop transmitting.
According to the method, the non-periodic SRS resource triggered later is sent preferentially, and the non-periodic SRS resource triggered earlier is stopped, so that frequent collision caused by non-periodic SRS sending can be avoided.
Example four
As shown in fig. 5, it is assumed that an aperiodic SRS trigger state 0 configured by a higher layer signaling corresponds to an SRS resource set 0, the SRS resource set 0 includes SRS resources 0 to 3, and an offset of an aperiodic SRS transmission instruction is 4; the aperiodic SRS trigger state 1 corresponds to an SRS resource set 1, the SRS resource set 1 includes SRS resources 4 and 5, and the offset of the aperiodic SRS transmission instruction is 4.
The terminal receives the non-periodic SRS triggering state 0 transmission triggered by the downlink control information in the time slot n, and then the terminal starts to transmit the SRS resource set 0 in the time slot n + 4. The terminal receives the non-periodic SRS triggering state 1 transmission triggered by the downlink control information in the time slot n +1, and then the terminal starts to transmit the SRS resource set 1 in the time slot n + 5. Because of the influence of the slot format and the network side configuration, at most 2 SRS resources can be transmitted in one slot, and therefore, SRS resources 0 and 2 are preferentially transmitted in n +4 slots. In the n +5 time slot, the time domain occupied symbols of the SRS resources corresponding to the SRS resource set 0 and the SRS resource set 1 collide, and the terminal only transmits the SRS resource in the later triggered SRS resource set 1, and stops transmitting the SRS resources 1 and 3 corresponding to the earlier triggered SRS resource set 0.
The second method comprises the following steps: and in the target time slot, stopping transmitting SRS resources of other SRS resource sets except the target SRS resource set in the SRS resource sets with collision. Namely, part of SRS resources in the SRS resource set triggered earlier and collided are stopped from being transmitted in the target time slot. The approach also indicates that the slot following the target slot may continue to transmit the remaining SRS resources in the set of previously triggered SRS resources where the collision occurred.
According to the method, the non-periodic SRS resources triggered later are preferentially sent, and the non-periodic SRS resources triggered earlier are continued, so that the non-periodic SRS discarding can be avoided, the SRS transmission efficiency is improved, and the base station channel state information acquisition performance is improved.
Example five
As shown in fig. 6, it is assumed that an aperiodic SRS trigger state 0 configured by a higher layer signaling corresponds to an SRS resource set 0, the SRS resource set 0 includes SRS resources 0 to 3, and an offset of an aperiodic SRS transmission instruction is 4; the aperiodic SRS trigger state 1 corresponds to an SRS resource set 1, the SRS resource set 1 includes SRS resources 4 and 5, and the offset of the aperiodic SRS transmission instruction is 4.
The terminal receives the non-periodic SRS triggering state 0 transmission triggered by the downlink control information in the time slot n, and then the terminal starts to transmit the SRS resource set 0 in the time slot n + 4. The terminal receives the non-periodic SRS triggering state 1 transmission triggered by the downlink control information in the time slot n +1, and then the terminal starts to transmit the SRS resource set 1 in the time slot n + 5. Because of the influence of the slot format and the network side configuration, at most 2 SRS resources can be transmitted in one slot, and therefore, SRS resources 0 and 2 are preferentially transmitted in n +4 slots. In the n +5 time slot, the time domain occupied symbols of the SRS resources corresponding to the SRS resource set 0 and the SRS resource set 1 collide, and the terminal will only transmit the later triggered SRS resource in the SRS resource set 1. While SRS resources 1 and 3 of SRS resource set 0 will continue to transmit in n +6 slots.
It should be noted that, the "SRS resource transmission" mentioned in the embodiment of the present invention specifically refers to "SRS resource transmission"; for example, the SRS resource sets other than the target SRS resource set in the SRS resource set where the transmission is stopped from colliding specifically refer to: and stopping transmitting the SRS resource sets except the target SRS resource set in the SRS resource set with the conflict. For another example, in the target timeslot, stopping transmitting SRS resources of SRS resource sets other than the target SRS resource set in the SRS resource set where the collision occurs specifically refers to: and stopping transmitting SRS resources of other SRS resource sets except the target SRS resource set in the SRS resource set with the conflict in the target time slot.
To sum up, the embodiment of the present invention provides a method for transmitting an aperiodic SRS when an SRS resource set cannot be completely transmitted in 1 timeslot, where the SRS resource set associated with a target aperiodic SRS trigger state, which is pre-configured by a network device, is transmitted in m timeslots, so that an aperiodic SRS transmission failure can be avoided, transmission performance of the aperiodic SRS can be improved, and further, acquisition performance of channel state information of a base station can be improved.
As shown in fig. 7, an embodiment of the present invention further provides a terminal device 700, including:
a receiving module 701, configured to receive an aperiodic SRS transmission instruction in a timeslot n, where the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with a target aperiodic SRS trigger state, where n is an integer greater than or equal to 0;
a transmission module 702, configured to transmit, in a time slot n + k to a time slot n + k + m-1, an SRS resource in an SRS resource set associated with the target aperiodic SRS trigger state, where m is an integer greater than or equal to 1; k is a slot offset between the reception of the aperiodic SRS sending instruction and the beginning of the transmission of the SRS resource set, and k is an integer greater than or equal to 0.
Preferably, in the above embodiment of the present invention, the transmission module 702 includes:
a first obtaining submodule, configured to obtain, when m is equal to 1, a number a of maximum transmittable SRS resources in a slot n + k, where a is an integer greater than or equal to 1;
a first transmission sub-module, configured to transmit, in a slot n + k, B SRS resources in an SRS resource set associated with the target aperiodic SRS trigger state, where B is an integer greater than or equal to 1, B is less than or equal to a, and B is less than or equal to the number of SRS resources in the SRS resource set.
Preferably, in the above embodiment of the present invention, the transmission module 702 includes:
the second acquisition submodule is used for acquiring the maximum number of the SRS resources which can be transmitted in each time slot from the time slot n + k to the time slot n + k + m-1 under the condition that m is greater than or equal to 2;
a second transmission submodule, configured to sequentially transmit SRS resources in an SRS resource set associated with the target aperiodic SRS trigger state from a time slot n + k to a time slot n + k + m-1; the number of SRS resources transmitted in each time slot is less than or equal to the maximum number of SRS resources transmittable in the time slot, and the number of SRS resources transmitted in each time slot is less than or equal to the number of SRS resources in the SRS resource set.
Preferably, in the above embodiment of the present invention, the number of SRS resources transmitted in any two timeslots from timeslot n + k to timeslot n + k + m-1 is the same; or,
the number of SRS resources transmitted in at least two slots between slot n + k to slot n + k + m-1 is different.
Preferably, in the above embodiment of the present invention, the second transmission sub-module includes:
the first transmission unit is used for sequentially transmitting SRS resources in the SRS resource set from a time slot n + k to a time slot n + k + m-1 according to an SRS resource sequence in the SRS resource set configured in advance; and/or the presence of a gas in the gas,
and a second transmission unit, configured to sequentially transmit SRS resources in the SRS resource set according to the SRS resource number in the SRS resource set from time slot n + k to time slot n + k + m-1.
Preferably, in the above embodiment of the present invention, the terminal device further includes:
a collision generation module, configured to acquire at least 2 SRS resource sets that collide when there is transmission of SRS resource sets associated with at least 2 different aperiodic SRS trigger states in a target time slot between a time slot n + k and a time slot n + k + m-1 and time domain occupied symbols of the different SRS resource sets collide;
and the conflict resolution module is used for selecting a target SRS resource set from the at least 2 conflicting SRS resource sets to transmit in the target time slot according to the receiving time of the aperiodic SRS sending instruction of the at least 2 conflicting SRS resource sets.
Preferably, in the above embodiment of the present invention, the conflict resolution module includes:
the interval acquisition submodule is used for acquiring at least 2 time interval values between each receiving moment of the non-periodic SRS sending instructions of at least 2 SRS resource sets which collide and a target time slot;
a set determining submodule, configured to select a minimum time interval value from the at least 2 time interval values, and determine an SRS resource set corresponding to the minimum time interval value as the target SRS resource set;
and a resource transmission submodule, configured to transmit SRS resources of the target SRS resource set in the target timeslot.
Preferably, in the above embodiment of the present invention, the terminal device further includes:
a first transmission stopping module, configured to stop transmitting other SRS resource sets except the target SRS resource set in the SRS resource set where the collision occurs; and/or the presence of a gas in the gas,
and a second transmission stopping module, configured to stop transmitting, in the target timeslot, SRS resources of other SRS resource sets except the target SRS resource set in the SRS resource set where the collision occurs.
The terminal device provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiments of fig. 1 to fig. 6, and is not described herein again to avoid repetition.
To sum up, the embodiment of the present invention provides a method for transmitting an aperiodic SRS when an SRS resource set cannot be completely transmitted in 1 timeslot, where the SRS resource set associated with a target aperiodic SRS trigger state, which is pre-configured by a network device, is transmitted in m timeslots, so that an aperiodic SRS transmission failure can be avoided, transmission performance of the aperiodic SRS can be improved, and further, acquisition performance of channel state information of a base station can be improved.
It should be noted that, the terminal device provided in the embodiments of the present invention is a terminal device capable of executing the transmission method of the aperiodic sounding reference signal SRS, and all embodiments of the transmission method of the aperiodic sounding reference signal SRS are applicable to the terminal device and can achieve the same or similar beneficial effects.
Figure 8 is a schematic diagram of a hardware structure of a terminal device implementing various embodiments of the present invention,
the terminal device 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 8 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
A radio frequency unit 801, configured to receive an aperiodic SRS transmission instruction in a timeslot n, where the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with a target aperiodic SRS trigger state, where n is an integer greater than or equal to 0;
a processor 810, configured to transmit SRS resources in a set of SRS resources associated with the target aperiodic SRS trigger state, configured in advance, from a timeslot n + k to a timeslot n + k + m-1, where m is an integer greater than or equal to 1; k is a slot offset between the reception of the aperiodic SRS sending instruction and the beginning of the transmission of the SRS resource set, and k is an integer greater than or equal to 0.
The embodiment of the invention provides a transmission method of an aperiodic SRS when an SRS resource set cannot be completely transmitted in 1 time slot, which can avoid transmission failure of the aperiodic SRS by transmitting the SRS resource in the SRS resource set which is pre-configured by network equipment and is associated with the target aperiodic SRS trigger state in m time slots, improve the transmission performance of the aperiodic SRS and further improve the acquisition performance of the channel state information of a base station.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.
The terminal device provides wireless broadband internet access to the user through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal apparatus 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.
The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 801 in case of a phone call mode.
The terminal device 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8061 and/or the backlight when the terminal device 800 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 807 is operable to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 8071 can be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the terminal device, and this is not limited herein.
The interface unit 808 is an interface for connecting an external device to the terminal apparatus 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 800 or may be used to transmit data between the terminal apparatus 800 and an external device.
The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 810 is a control center of the terminal device, connects various parts of the whole terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby performing overall monitoring of the terminal device. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.
Terminal device 800 may also include a power supply 811 (such as a battery) for powering the various components, and preferably, power supply 811 may be logically coupled to processor 810 via a power management system to provide management of charging, discharging, and power consumption via the power management system.
In addition, the terminal device 800 includes some functional modules that are not shown, and are not described in detail here.
Preferably, as shown in fig. 9, an embodiment of the present invention further provides a terminal device, which includes a processor 900, a memory 910, and a computer program that is stored in the memory 910 and is executable on the processor 900, and when the computer program is executed by the processor 900, the computer program implements each process of the foregoing transmission method for an aperiodic sounding reference signal SRS, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
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 foregoing method for transmitting an aperiodic sounding reference signal SRS, 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.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (18)
1. A transmission method of an aperiodic Sounding Reference Signal (SRS) is applicable to terminal equipment, and is characterized by comprising the following steps:
receiving an aperiodic SRS sending instruction in a time slot n, wherein the aperiodic SRS sending instruction is used for triggering transmission of an SRS resource set associated with a target aperiodic SRS triggering state, and n is an integer greater than or equal to 0;
and transmitting the SRS resource in the pre-configured SRS resource set associated with the target aperiodic SRS triggering state from a time slot n + k to a time slot n + k + m-1, wherein m is an integer larger than or equal to 1, k is a time slot offset between the receiving of the aperiodic SRS sending instruction and the beginning of transmitting the SRS resource set, and k is an integer larger than or equal to 0.
2. The method of claim 1, wherein the transmitting SRS resources from a preconfigured set of SRS resources associated with the target aperiodic SRS trigger state in slot n + k to slot n + k + m-1 if m is equal to 1, comprises:
acquiring the number A of the most transmissible SRS resources in a time slot n + k, wherein A is an integer greater than or equal to 1;
b SRS resources in an SRS resource set associated with the target aperiodic SRS triggering state are transmitted in a time slot n + k, wherein B is an integer greater than or equal to 1, B is less than or equal to A, and B is less than or equal to the number of the SRS resources in the SRS resource set.
3. The method of claim 1, wherein in case m is greater than or equal to 2, the transmitting SRS resources in the set of SRS resources associated with the preconfigured target aperiodic SRS trigger state in slot n + k to slot n + k + m-1 comprises:
acquiring the maximum number of the SRS resources which can be transmitted in each time slot from the time slot n + k to the time slot n + k + m-1;
sequentially transmitting SRS resources in an SRS resource set associated with the target aperiodic SRS triggering state from a time slot n + k to a time slot n + k + m-1; the number of SRS resources transmitted in each time slot is less than or equal to the maximum number of SRS resources transmittable in the time slot, and the number of SRS resources transmitted in each time slot is less than or equal to the number of SRS resources in the SRS resource set.
4. The method of claim 3, wherein the number of SRS resources transmitted in any two slots between slot n + k to slot n + k + m-1 is the same; or,
the number of SRS resources transmitted in at least two slots between slot n + k to slot n + k + m-1 is different.
5. The method of claim 3, wherein sequentially transmitting SRS resources in the set of SRS resources associated with the target aperiodic SRS triggering state from slot n + k to slot n + k + m-1 comprises:
sequentially transmitting SRS resources in the SRS resource set from a time slot n + k to a time slot n + k + m-1 according to a pre-configured SRS resource sequence in the SRS resource set; or,
and sequentially transmitting the SRS resources in the SRS resource set from the time slot n + k to the time slot n + k + m-1 according to the SRS resource numbers in the SRS resource set.
6. The method of claim 1, further comprising:
the method comprises the steps that transmission of SRS resource sets associated with at least 2 different aperiodic SRS triggering states exists in a target time slot between a time slot n + k and a time slot n + k + m-1, and under the condition that time domain occupied symbols of different SRS resource sets collide, at least 2 colliding SRS resource sets are obtained;
and selecting a target SRS resource set from the at least 2 conflicting SRS resource sets to transmit in the target time slot according to the receiving time of the aperiodic SRS transmission instruction for transmitting the at least 2 conflicting SRS resource sets.
7. The method of claim 6, wherein the selecting a target SRS resource set from the at least 2 colliding SRS resource sets for transmission in the target slot according to a receiving time of an aperiodic SRS transmission indication for transmitting the at least 2 colliding SRS resource sets comprises:
acquiring at least 2 time interval values between each receiving time of the non-periodic SRS sending instructions of at least 2 SRS resource sets which collide and a target time slot:
selecting a minimum time interval value from the at least 2 time interval values, and determining an SRS resource set corresponding to the minimum time interval value as the target SRS resource set;
and transmitting SRS resources of the target SRS resource set in the target time slot.
8. The method of claim 7, further comprising:
stopping transmitting other SRS resource sets except the target SRS resource set in the SRS resource set with the conflict; or,
and in the target time slot, stopping transmitting SRS resources of other SRS resource sets except the target SRS resource set in the SRS resource sets with collision.
9. A terminal device, comprising:
a receiving module, configured to receive an aperiodic SRS transmission instruction in a timeslot n, where the aperiodic SRS transmission instruction is used to trigger transmission of an SRS resource set associated with a target aperiodic SRS trigger state, where n is an integer greater than or equal to 0;
a transmission module, configured to transmit SRS resources in a set of SRS resources associated with the target aperiodic SRS trigger state, configured in advance, from a time slot n + k to a time slot n + k + m-1, where m is an integer greater than or equal to 1; k is a slot offset between the reception of the aperiodic SRS sending instruction and the beginning of the transmission of the SRS resource set, and k is an integer greater than or equal to 0.
10. The terminal device of claim 9, wherein the transmission module comprises:
a first obtaining submodule, configured to obtain, when m is equal to 1, a number a of maximum transmittable SRS resources in a slot n + k, where a is an integer greater than or equal to 1;
a first transmission sub-module, configured to transmit, in a slot n + k, B SRS resources in an SRS resource set associated with the target aperiodic SRS trigger state, where B is an integer greater than or equal to 1, B is less than or equal to a, and B is less than or equal to the number of SRS resources in the SRS resource set.
11. The terminal device of claim 9, wherein the transmission module comprises:
the second acquisition submodule is used for acquiring the maximum number of the SRS resources which can be transmitted in each time slot from the time slot n + k to the time slot n + k + m-1 under the condition that m is greater than or equal to 2;
a second transmission submodule, configured to sequentially transmit SRS resources in an SRS resource set associated with the target aperiodic SRS trigger state from a time slot n + k to a time slot n + k + m-1; the number of SRS resources transmitted in each time slot is less than or equal to the maximum number of SRS resources transmittable in the time slot, and the number of SRS resources transmitted in each time slot is less than or equal to the number of SRS resources in the SRS resource set.
12. The terminal device of claim 11, wherein the number of SRS resources transmitted in any two slots from slot n + k to slot n + k + m-1 is the same; or,
the number of SRS resources transmitted in at least two slots between slot n + k to slot n + k + m-1 is different.
13. The terminal device of claim 11, wherein the second transmission sub-module comprises:
the first transmission unit is used for sequentially transmitting SRS resources in the SRS resource set from a time slot n + k to a time slot n + k + m-1 according to an SRS resource sequence in the SRS resource set configured in advance; and/or the presence of a gas in the gas,
and a second transmission unit, configured to sequentially transmit SRS resources in the SRS resource set according to the SRS resource number in the SRS resource set from time slot n + k to time slot n + k + m-1.
14. The terminal device according to claim 9, wherein the terminal device further comprises:
a collision generation module, configured to acquire at least 2 SRS resource sets that collide when there is transmission of SRS resource sets associated with at least 2 different aperiodic SRS trigger states in a target time slot between a time slot n + k and a time slot n + k + m-1 and time domain occupied symbols of the different SRS resource sets collide;
and the conflict resolution module is used for selecting a target SRS resource set from the at least 2 conflicting SRS resource sets to transmit in the target time slot according to the receiving time of the aperiodic SRS sending instruction of the at least 2 conflicting SRS resource sets.
15. The terminal device of claim 14, wherein the conflict resolution module comprises:
the interval acquisition submodule is used for acquiring at least 2 time interval values between each receiving moment of the non-periodic SRS sending instructions of at least 2 SRS resource sets which collide and a target time slot;
a set determining submodule, configured to select a minimum time interval value from the at least 2 time interval values, and determine an SRS resource set corresponding to the minimum time interval value as the target SRS resource set;
and a resource transmission submodule, configured to transmit SRS resources of the target SRS resource set in the target timeslot.
16. The terminal device according to claim 15, wherein the terminal device further comprises:
a first transmission stopping module, configured to stop transmitting other SRS resource sets except the target SRS resource set in the SRS resource set where the collision occurs; and/or the presence of a gas in the gas,
and a second transmission stopping module, configured to stop transmitting, in the target timeslot, SRS resources of other SRS resource sets except the target SRS resource set in the SRS resource set where the collision occurs.
17. A terminal device, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for transmission of an aperiodic sounding signal, SRS, according to any one of claims 1 to 8.
18. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for transmission of an aperiodic sounding signal, SRS, as recited in any one of claims 1 to 8.
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| WO2021159692A1 (en) | 2020-02-14 | 2021-08-19 | Qualcomm Incorporated | Multi-slot aperiodic sounding reference signal |
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