SRS resource determination method and device and storage medium

Abstract

The embodiment of the invention provides an SRS resource determination method and device and a storage medium. The method comprises the steps that network equipment periodically acquires interference measurement results on the last n uplink symbols of a special time slot; the value of n is equal to the number of uplink symbols used for sending the SRS in the special time slot; and determining a time slot and a symbol occupied by the SRS resource according to the interference measurement result. Therefore, the SRS can be no longer transmitted in a special time slot in a fixed manner, but the transmitting position of the SRS can be adaptively selected according to the interference condition, so that the purposes of reducing SRS interference and improving user perception are achieved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, device and storage medium for determining SRS resources. Background Art

[0002] A channel sounding reference signal (SRS) is an uplink reference signal sent by a terminal (or user equipment, UE) to a network device, and can be used by the network device to evaluate the uplink channel quality.

[0003] Currently, SRS is fixedly sent on the last few symbols of a special time slot. When there is interference with the SRS in the special time slot, the signal to noise ratio (SNR) of the SRS deteriorates, greatly affecting the user's perception. Summary of the invention

[0004] In view of the problems existing in the prior art, the embodiments of the present application provide a method, device and storage medium for determining SRS resources.

[0005] In a first aspect, an embodiment of the present application provides a method for determining an SRS resource, which is applied to a network device, including:

[0006] Periodically obtaining interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot;

[0007] The time slot and symbol occupied by the SRS resource are determined according to the interference measurement result.

[0008] In a second aspect, an embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor;

[0009] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0010] Periodically obtaining interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot;

[0011] The time slot and symbol occupied by the SRS resource are determined according to the interference measurement result.

[0012] In a third aspect, an embodiment of the present application further provides a device for determining an SRS resource, including:

[0013] An acquisition unit, used to periodically acquire interference measurement results on the last n uplink symbols of a special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot;

[0014] The determining unit is used to determine the time slot and symbol occupied by the SRS resource according to the interference measurement result.

[0015] In a fourth aspect, an embodiment of the present application further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method for determining SRS resources as described in the first aspect above.

[0016] In a fifth aspect, an embodiment of the present application further provides a communication device, wherein a computer program is stored in the communication device, and the computer program is used to enable the communication device to execute the method for determining SRS resources as described in the first aspect above.

[0017] In a sixth aspect, an embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method for determining SRS resources as described in the first aspect above.

[0018] In a seventh aspect, an embodiment of the present application further provides a chip product, wherein a computer program is stored in the chip product, and the computer program is used to enable the chip product to execute the method for determining SRS resources as described in the first aspect above.

[0019] The SRS resource determination method, device and storage medium provided in the embodiments of the present application periodically measure the interference measurement results on the last n uplink symbols of a special time slot, and determine the time slots and symbols occupied by the SRS resources based on these interference measurement results, so that the SRS is no longer fixed to be sent in the special time slot, but the SRS sending position can be adaptively selected according to the interference situation, thereby achieving the purpose of reducing SRS interference and improving user perception. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 An example diagram comparing LTE and NR frame structures for related technologies;

[0022] Figure 2A flowchart of a method for determining SRS resources provided in an embodiment of the present application;

[0023] Figure 3 An example diagram of the SRS resource determination process provided in an embodiment of the present application;

[0024] Figure 4 A schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of the structure of an apparatus for determining SRS resources provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0027] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0028] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] At present, SRS is fixedly transmitted in special time slots. When there is interference in the SRS of special time slots, for example, many projects cannot completely clear the frequency due to many reasons, when the 5G New Radio (NR) base station is opened, the long-term evolution (LTE) signal of the same frequency will interfere with the SRS of NR, thereby causing the SRS SNR to deteriorate, affecting the speed of midpoint and good point users. At the same time, the poor point (good point, midpoint, and poor point are divided according to the reference signal received power (ss-rsrp) of the synchronization signal and the signal to interference and noise ratio (ss-sinr) of the synchronization signal) users may have a poor SRS SNR. The base station cannot demodulate the SRS, resulting in frequent uplink desynchronization of poor users and inability to conduct business.

[0031] Figure 1 An example diagram comparing the LTE and NR frame structures provided for related technologies, such as Figure 1 As shown in the figure, when the 5G base station uses a 5ms single-cycle frame structure, its subframe configuration is DDDDDDDSUU, and the symbol configuration of the special time slot S is 6:4:4 (D:GP:U). Currently, SRS is fixedly sent on the last 4 symbols of the special time slot. Figure 1 It can be seen that the uplink symbols in the LTE and NR special time slots are completely aligned. When the LTE SRS and the 5G SRS are both sent in the uplink symbols of the special time slot, because the sending positions completely overlap, LTE will cause great interference to the demodulation of the 5G SRS. The high SRS interference greatly affects the user's perception.

[0032] In view of the above problems, the embodiments of the present application provide a solution, which can adaptively select the SRS transmission position according to the interference situation of the special time slot, so as to achieve the purpose of reducing SRS interference and improving user perception.

[0033] Figure 2 The flowchart of the method for determining SRS resources provided in the embodiment of the present application is shown in FIG. Figure 2 As shown, the method comprises the following steps:

[0034] Step 200: Periodically obtain interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot.

[0035] Step 201: Determine the time slots and symbols occupied by SRS resources according to the interference measurement result.

[0036] Specifically, to achieve adaptive optimization of SRS resources, in the embodiment of the present application, the network device can periodically obtain interference measurement results on the last n uplink symbols of the special time slot. The period for obtaining the interference measurement results can be set as needed and is not limited here.

[0037] In some embodiments, when obtaining the interference measurement results on the last n uplink symbols of the special time slot, the interference measurement results on the last n uplink symbols of the uplink time slot may also be obtained.

[0038] For different frame structures, the position and number of special time slots and uplink time slots in a subframe may be different. The method for determining SRS resources provided in the present application can be applicable to various frame structures. For any frame structure, the network device can periodically obtain the interference measurement results on the last n uplink symbols of the special time slot in the frame structure, or obtain the interference measurement results on the last n uplink symbols of the uplink time slot at the same time.

[0039] For example, suppose the base station uses Figure 1 The 5ms single-cycle frame structure shown has a subframe configuration of DDDDDDDSUU. The last three time slots (slot7, slot8 and slot9) in a subframe are respectively one special time slot (S) and two uplink time slots (U). The symbol configuration of the special time slot is 6:4:4, and the number of uplink symbols n used to send SRS in the special time slot is equal to 4. The base station can periodically obtain the last 4 uplink symbols of slot7 in the subframe, or also obtain the interference measurement results of the last 4 uplink symbols of slot8 and the last 4 uplink symbols of slot9.

[0040] In some embodiments, the interference noise (Interference over Thermal, IoT) value on each resource block (Resource Blocks, RB) of each uplink symbol can be measured to obtain the interference measurement result. For example, for a certain uplink symbol, the IoT value on each RB (such as 100M bandwidth, the number of RBs is 273) of the uplink symbol can be measured, and then the average value of the IoT values ​​on all RBs of the uplink symbol is used as the interference measurement result of the uplink symbol.

[0041] Of course, the interference measurement result may also be any other measurement result that can be used to characterize the interference situation on the uplink symbol, and the present application does not impose any limitation on this.

[0042] After obtaining the interference measurement results on the last n uplink symbols of the special time slot, the network device can determine the time slot and symbol occupied by the SRS resources according to these interference measurement results, that is, determine in which time slot and which symbol the SRS should be sent.

[0043] In the embodiment of the present application, the time slot occupied by the SRS resource may be a special time slot or an uplink time slot, and the network device may adaptively determine the transmission position of the SRS according to the interference condition on the uplink symbol of the time slot.

[0044] It should be noted that the method for determining SRS resources in the embodiment of the present application can be embodied in the network device in the form of an enabled function. For example, the "SRS resource adaptation" function is set in the network device. The function can be turned on or off by operating the network device. It can also be a system function that is enabled by default in the network device. The specific method can be determined based on the actual situation of the network device, and will not be elaborated later.

[0045] The method for determining SRS resources provided in the embodiment of the present application periodically measures the interference measurement results on the last n uplink symbols of a special time slot, and determines the time slots and symbols occupied by SRS resources based on these interference measurement results, so that the SRS is no longer fixedly sent in the special time slot, but the SRS sending position can be adaptively selected according to the interference situation, thereby achieving the purpose of reducing SRS interference and improving user perception.

[0046] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0047] When the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the first uplink interference average value of the first time slot; wherein the first time slot includes the special time slot and the uplink time slot, and the first uplink interference average value of the first time slot is the average value of the interference measurement results on the last n uplink symbols of the first time slot.

[0048] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0049] When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, it is determined that the SRS resource occupies the last n uplink symbols in the special time slot.

[0050] Specifically, when the network device determines the time slots and symbols occupied by SRS resources based on the interference measurement results, it can first determine the interference situation of the last n uplink symbols of the special time slot (i.e., the time slot used to send SRS in the prior art), and determine the time slots and symbols occupied by SRS resources based on the determination results.

[0051] When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, the network device can determine that the SRS resource occupies the last n uplink symbols of the special time slot. The SRS interference threshold can be set as needed and is not limited here.

[0052] When there is a symbol whose interference measurement result is greater than the SRS interference threshold in the last n uplink symbols of the special time slot, the network device can make further judgments and determine the time slot and symbol occupied by the SRS resource based on the average value of the interference measurement results on the last n uplink symbols of the special time slot and the average value of the interference measurement results on the last n uplink symbols of the uplink time slot. For example, when the interference in the special time slot is large, the SRS can be moved to the uplink time slot where the interference may be smaller, thereby reducing SRS interference and improving user perception.

[0053] In some embodiments, the method further comprises:

[0054] After determining that the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtain the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot, and determine the first uplink interference average value of the first time slot based on the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot.

[0055] For example, after determining that there are symbols whose interference measurement results are greater than the SRS interference threshold in the last n uplink symbols of the special time slot, the network device can obtain the latest interference measurement results on the last n uplink symbols of the special time slot and the uplink time slot, and use the latest interference measurement results to calculate the average value of the interference measurement results on the last n uplink symbols of the special time slot, and the average value of the interference measurement results on the last n uplink symbols of the uplink time slot, so as to make a more accurate judgment.

[0056] In some embodiments, the network device may also obtain the interference measurement results of the last n uplink symbols of the uplink time slot when periodically obtaining the interference measurement results of the last n uplink symbols of the special time slot as described above, and use these interference measurement results to calculate the average value of the interference measurement results of the last n uplink symbols of the special time slot and the average value of the interference measurement results of the last n uplink symbols of the uplink time slot.

[0057] The base station described above uses Figure 1Taking the 5ms single-cycle frame structure shown as an example (for ease of understanding, the following text will use this frame structure as an example), slot7 is a special time slot, slot8 and slot9 are uplink time slots, n is equal to 4, and the base station can first determine the interference situation of the last 4 uplink symbols of slot7 (denoted as slot7_symbol10, slot7_symbol11, slot7_symbol12 and slot7_symbol13).

[0058] If the interference measurement results on slot7_symbol10, slot7_symbol11, slot7_symbol12 and slot7_symbol13 are all less than or equal to the SRS interference threshold, the base station can determine that the SRS resource occupies the last 4 uplink symbols of slot7.

[0059] If the interference measurement result of at least one symbol in slot7_symbol10, slot7_symbol11, slot7_symbol12 and slot7_symbol13 is greater than the SRS interference threshold, the base station can make further judgments. First, determine the average value of the interference measurement results on the last 4 uplink symbols of slot7, the average value of the interference measurement results on the last 4 uplink symbols of slot8, and the average value of the interference measurement results on the last 4 uplink symbols of slot9, and then determine the time slot and symbol occupied by the SRS resource based on these three average values.

[0060] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot includes:

[0061] Determine a first average interference minimum value, where the first average interference minimum value is a minimum value between a first uplink interference average value of the special time slot and a first uplink interference average value of the uplink time slot;

[0062] The time slots and symbols occupied by the SRS resources are determined according to a comparison result between the first average interference minimum value and the SRS interference threshold.

[0063] Specifically, the network device may first compare the average value of the interference measurement results on the last n uplink symbols of the special time slot with the average value of the interference measurement results on the last n uplink symbols of the uplink time slot, and determine the smallest average value therebetween as the first average interference minimum value.

[0064] Then, the network device compares the first average interference minimum value with the SRS interference threshold, and determines the time slot and symbol occupied by the SRS resource according to the comparison result.

[0065] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first average interference minimum value and the SRS interference threshold includes:

[0066] When the first average interference minimum value is less than or equal to the SRS interference threshold, determine that the SRS resource occupies the last n uplink symbols in the second time slot; wherein the second time slot is the time slot corresponding to the first average interference minimum value in the first time slot;

[0067] When the first average interference minimum value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is the average value of the interference measurement results on m consecutive symbols of the last n uplink symbols of the second time slot, and m is a positive integer less than or equal to n-1.

[0068] Specifically, if the first average interference minimum value is less than or equal to the SRS interference threshold, the network device may determine that the SRS resource occupies the last n uplink symbols of the time slot corresponding to the first average interference minimum value.

[0069] For example, assuming that the average value of the interference measurement results on the last 4 uplink symbols of slot8 is the first average interference minimum value, and the first average interference minimum value is less than or equal to the SRS interference threshold, the base station can determine that the SRS resources occupy the last 4 uplink symbols of slot8.

[0070] If the first average interference minimum value is greater than the SRS interference threshold, the network device may further determine whether there are fewer continuous uplink symbols in the time slot corresponding to the first average interference minimum value that can meet the SRS interference threshold, thereby determining the time slots and symbols occupied by the SRS resources.

[0071] For example, assuming that the average value of the interference measurement results on the last four uplink symbols of slot8 is the first average interference minimum value, and the first average interference minimum value is greater than the SRS interference threshold, then the base station can narrow the range of consecutive uplink symbols occupied by SRS, such as determining whether the average value of the interference measurement results on three consecutive uplink symbols among the last four uplink symbols of slot8 is less than or equal to the SRS interference threshold, so as to determine the time slots and symbols occupied by SRS resources.

[0072] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the second uplink interference average value of the second time slot includes:

[0073] Determine in sequence the second average minimum interference values ​​corresponding to different m values, and after each determination of the second average minimum interference value, perform the following steps: compare the second average minimum interference value with the SRS interference threshold, if the second average minimum interference value is greater than the SRS interference threshold, determine the second average minimum interference value corresponding to the next m value, if the second average minimum interference value is less than or equal to the SRS interference threshold, stop determining the second average minimum interference value corresponding to the subsequent m value, and determine that the SRS resource occupies m consecutive symbols corresponding to the second average minimum interference value in the second time slot;

[0074] The value of m decreases from n-1 to 1 in steps of 1, and the second average interference minimum value is the minimum value of all second uplink interference average values ​​corresponding to the same m value in the second time slot.

[0075] For example, assuming that the average value of the interference measurement results on the last 4 uplink symbols of slot8 is the first average interference minimum value, and the first average interference minimum value is greater than the SRS interference threshold, then the base station first determines whether there are 3 consecutive uplink symbols among the last 4 uplink symbols of slot8 whose average value of the interference measurement results is less than or equal to the SRS interference threshold.

[0076] Specifically, assuming that the last four uplink symbols of slot8 are recorded as slot8_symbol10, slot8_symbol11, slot8_symbol12 and slot8_symbol13 respectively, the base station can calculate the average value of the interference measurement results on the three consecutive symbols of slot8_symbol10, slot8_symbol11 and slot8_symbol12 (recorded as Avg3-1), and the interference measurement results on the three consecutive symbols of slot8_symbol11, slot8_symbol12 and slot8_symbol13. The average value of the results (denoted as Avg3-2) is taken, and the minimum value of the two average values ​​(assuming to be Avg3-1) is compared with the SRS interference threshold. If the minimum value is less than or equal to the SRS interference threshold, it can be determined that the SRS resource occupies three consecutive symbols, slot8_symbol10, slot8_symbol11 and slot8_symbol12; if the minimum value is greater than the SRS interference threshold, the base station can continue to reduce the number of consecutive uplink symbols to be judged, and then judge whether there are two consecutive uplink symbols in the last four uplink symbols of slot8 whose average value of the interference measurement results on the uplink symbols is less than or equal to the SRS interference threshold.

[0077] The base station can calculate the average value of the interference measurement results on the two consecutive symbols slot8_symbol10 and slot8_symbol11 (recorded as Avg2-1), the average value of the interference measurement results on the two consecutive symbols slot8_symbol11 and slot8_symbol12 (recorded as Avg2-2), and the average value of the interference measurement results on the two consecutive symbols slot8_symbol12 and slot8_symbol13 (recorded as Avg2-3), and compare the minimum value of the three average values ​​(assuming Avg2-1) with the SRS interference threshold. If the minimum value is less than or equal to the SRS interference threshold, it can be determined that the SRS resource occupies the two consecutive symbols slot8_symbol10 and slot8_symbol11; if the minimum value is greater than the SRS interference threshold, the base station can continue to reduce the number of consecutive uplink symbols to be judged, and then judge whether there is an interference measurement result on one uplink symbol among the last four uplink symbols of slot8 that is less than or equal to the SRS interference threshold.

[0078] Assuming that slot8_symbol10 is the uplink symbol with the smallest interference measurement result among the last four uplink symbols of slot8, and the interference measurement result on slot8_symbol10 is less than or equal to the SRS interference threshold, the base station can determine that the SRS resource occupies slot8_symbol10.

[0079] In some embodiments, if slot8_symbol10 is the uplink symbol with the smallest interference measurement result among the last 4 uplink symbols of slot8, and the interference measurement result on slot8_symbol10 is greater than the SRS interference threshold, then the base station can determine that the SRS resource occupies the last 4 uplink symbols of slot7, that is, determine that the SRS is still sent in the special time slot.

[0080] In some embodiments, the method further comprises:

[0081] According to the determined time slots and symbols occupied by the SRS resources, SRS configuration information is sent to the terminal.

[0082] For example, when the time slots and symbols occupied by the SRS resources determined in this cycle are different from the time slots and symbols occupied by the SRS resources determined in the previous cycle, the network device can send SRS configuration information to the subordinate terminals according to the time slots and symbols occupied by the SRS resources determined in this cycle, so that the terminals can determine the sending location of the SRS according to the SRS configuration information.

[0083] Of course, the network device may also send SRS configuration information to the subordinate terminals each time after determining the time slots and symbols occupied by the SRS resources.

[0084] In some implementations, when the network device determines that the SRS resource occupies a special time slot, the network device can send the corresponding special time slot through the parameter periodicityAndOffset-p of the srs-Config in the radio resource control (RRC) reconfiguration message, and control the starting symbol position and length of the SRS through the parameters SymbolStartPosition and nrofSymbols of the srs-Config in the RRC reconfiguration message.

[0085] In some implementations, when the network device determines that the SRS resource occupies the uplink time slot, the network device can send the corresponding uplink time slot through the parameter periodicityAndOffset-p of the srs-Config in the RRC reconfiguration message, and control the starting symbol position and length of the SRS through the parameters SymbolStartPosition and nrofSymbols of the srs-Config in the RRC reconfiguration message.

[0086] In some embodiments, the method further comprises:

[0087] Physical uplink shared channel PUSCH configuration information is sent to the terminal, where the values ​​of the start symbol and the length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83.

[0088] Specifically, considering that the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) cannot be sent in the entire time slot when SRS is sent in the uplink time slot, the embodiment of the present application proposes that more optional values ​​​​can be added to the start symbol and length parameters (startSymbolAndLength) in the PUSCH configuration information (pusch-Config) (currently only the value 27, indicating that PUSCH occupies all 14 symbols of the uplink time slot) to ensure normal scheduling of PUSCH.

[0089] The values ​​of startSymbolAndLength are 41, 55, 49, and 83, respectively indicating that the number of symbols occupied by the PUSCH is 13, 12, 11, and 10. Accordingly, 1, 2, 3, and 4 symbols can be used for other purposes in the uplink time slot, such as sending SRS.

[0090] In some implementations, the network device may send PUSCH configuration information to the terminal when determining that the SRS resource occupies the uplink time slot, and the values ​​of the starting symbol and the length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83, or the values ​​of the starting symbol and the length parameter in the PUSCH configuration information correspond to the number of symbols in the uplink time slot occupied by the SRS resource. For example, the values ​​of the starting symbol and the length parameter in the PUSCH configuration information may include 41, 55, 49 and 83; or, if the SRS resource occupies the last 3 symbols in the uplink time slot, the values ​​of the starting symbol and the length parameter in the PUSCH configuration information may be 49.

[0091] In some implementations, the network device may add at least one of 41, 55, 49, and 83 in the parameter startSymbolAndLength of pusch-Config through an RRC reconfiguration message.

[0092] In some implementations, the network device may pre-send PUSCH configuration information, and the values ​​of the starting symbol and length parameters in the PUSCH configuration information may include at least one of 41, 55, 49, and 83. The subsequent terminal may determine the sending position of the SRS based on the SRS configuration information. If the SRS resource occupies the uplink time slot, the terminal may determine the symbols occupied by the PUSCH based on the number of symbols occupied by the SRS resource.

[0093] The following describes the methods provided in the above embodiments of the present application by using examples of specific application scenarios.

[0094] Example 1:

[0095] by Figure 1Taking the NR 5ms single-cycle frame structure shown as an example, the subframe configuration is DDDDD DDSUU, a subframe contains 10 time slots, the last 3 time slots are slot7 (S time slot), slo8 (U time slot) and slot9 (U time slot), and there are 12 SRS interference measurement results for slot7, slo8 and slot9: s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot, s7_srs_symbol13_prbiot, s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot, ol13_prbiot, s9_srs_symbol10_prbiot, s9_srs_symbol11_prbiot, s9_srs_symbol12_prbiot, s9_srs_symbol13_prbiot. The parameters used by the base station are shown in Table 1.

[0096] Table 1 List of parameters used by base stations

[0097]

[0098] Figure 3 The example diagram of the SRS resource determination process provided in the embodiment of the present application is as follows: Figure 3 As shown, it mainly includes:

[0099] 1. Turn on the "SRS resource adaptation" function switch.

[0100] 2. The base station performs periodic measurement according to the “base station detects slot7 SRS symbol interference period” to obtain the interference measurement results s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot on the last 4 uplink symbols of slot7.

[0101] 3. The base station determines whether any of s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot has a value higher than the parameter “SRS interference threshold”.

[0102] 3.1. If s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot are all lower than the "SRS interference threshold", SRS is still sent in slot 7 by default.

[0103] 3.2. If any of s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot is higher than the "SRS interference threshold", the base station starts to detect the interference on the last 4 uplink symbols of slot7, slot8 and slot9, and obtains the interference measurement results s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol13_prbiot on the last 4 uplink symbols of slot7 respectively. The interference measurement results on the last 4 uplink symbols of slot8 are s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot and s8_srs_symbol13_prbiot, and the interference measurement results on the last 4 uplink symbols of slot9 are s9_srs_symbol10_prbiot, s9_srs_symbol11_prbiot, s9_srs_symbol12_prbiot and s9_srs_symbol13_prbiot.

[0104] 3.2.1. Find Min(Avg(s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot, s7_srs_symbol13_prbiot), Avg(s8_sr s_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot), Avg(s9_srs_symbol10_prbiot, s9_srs_symbo l11_prbiot, s9_srs_symbol12_prbiot, s9_srs_symbol13_prbiot)). Calculate the average value of uplink interference of four consecutive symbols in each time slot, and then calculate the minimum value of the average value of uplink interference of four consecutive symbols in all time slots, and determine whether the minimum value is less than or equal to the "SRS interference threshold". If the minimum value is less than or equal to the "SRS interference threshold", the SRS transmission time slot and symbol can be determined. For example, if the average interference of slot8 is the smallest and less than the "SRS interference threshold", it can be determined that the SRS is sent in the last 4 symbols of slot8.

[0105] 3.2.2. If the minimum value obtained in 3.2.1 is still greater than the parameter "SRS interference threshold", the base station checks whether there are three consecutive symbols in the time slot with the smallest average interference that meet the "SRS interference threshold" (the following formula assumes that slot8 has the smallest average interference). Calculate Min(Avg(s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot), Avg(s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot)), and the base station determines whether the minimum value of the average interference of three consecutive symbols in slot8 is less than or equal to the "SRS interference threshold". If the minimum value of the average interference of three consecutive symbols is less than or equal to the "SRS interference threshold", the SRS transmission time slot and symbol can be determined. For example, Avg(s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot) is smaller and less than the "SRS interference threshold", then it can be determined that SRS is sent in the three symbols symbol10, symbol11 and symbol12 of slot8.

[0106] 3.2.3. If the minimum value obtained in 3.2.2 is still greater than the parameter "SRS interference threshold", the base station checks whether there are two consecutive symbols in the time slot with the smallest average interference that meet the "SRS interference threshold" (the following formula assumes that slot8 has the smallest average interference). Calculate Min(Avg(s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot), Avg(s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot), Avg(s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot)), and the base station determines whether the minimum value of the average interference of two consecutive symbols in slot8 is less than or equal to the "SRS interference threshold". If the minimum value of the average interference of two consecutive symbols is less than or equal to the "SRS interference threshold", the SRS transmission time slot and symbol can be determined. For example, if Avg(s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot) is the smallest and smaller than the "SRS interference threshold", it can be determined that SRS is sent in the two symbols symbol11 and symbol12 of slot8.

[0107] 3.2.4. If the minimum value obtained in 3.2.3 is still greater than the parameter "SRS interference threshold", the base station checks whether there is a symbol in the time slot with the smallest average interference that meets the "SRS interference threshold" (the following formula assumes that slot8 has the smallest average interference). Calculate Min(s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symb ol13_prbiot), and the base station determines whether the minimum value is less than or equal to the "SRS interference threshold". If the minimum value is less than or equal to the "SRS interference threshold", the SRS transmission time slot and symbol can be determined. For example, s8_srs_symbol12_prbiot is the smallest and less than the "SRS interference threshold", then it can be determined that the SRS is sent at symbol symbol12 in slot8. If the minimum value is still greater than the "SRS interference threshold", it is determined that the SRS is sent in the special time slot.

[0108] 4. Determine the symbols and time slots occupied by SRS resources and configure SRS resources.

[0109] 4.1. Determine whether the SRS transmission time slot includes a normal time slot.

[0110] 4.1.1. If the SRS transmission time slot does not include the normal time slot (that is, the SRS is sent in the special time slot), the corresponding time slot is sent through the parameter periodicityAndOffset-p of the srs-Config in the RRC reconfiguration message, and the length of the SRS is controlled by the parameters SymbolStartPosition and nrofSymbols of the srs-Config in the RRC reconfiguration message.

[0111] 4.1.2. If the SRS transmission time slot includes the normal time slot (i.e., the SRS is transmitted in the uplink time slot), the corresponding time slot is sent through the parameter periodicityAndOffset-p of srs-Config in the RRC reconfiguration message, and the length of SRS is controlled through the parameters SymbolStartPosition and nrofSymbols of srs-Config in the RRC reconfiguration message. Add {41, 55, 49, 83} to the parameter startSymbolAndLength of pusch-Config through the RRC reconfiguration message (when SRS is transmitted in the normal time slot, PUSCH cannot be transmitted in the full time slot, and the corresponding field needs to be added in startSymbolAndLength to ensure normal scheduling of PUSCH).

[0112] By periodically testing the interference of the SRS transmission position, the base station can timely understand the SRS interference situation and move the SRS transmission position to the time slot and symbol without interference, which can improve the SRS SNR and increase the downlink rate and uplink rate.

[0113] By giving priority to ensuring that as many symbols as possible are used to send SRS in a single time slot, it is possible to ensure that more non-codebook users are supported in the cell (based on the reciprocity of the service channel, the downlink rate of non-codebook users can be greatly improved compared to codebook users), thereby improving the cell throughput.

[0114] When SRS adapts to the normal time slot, by adding {41, 55, 49, 83} (increasing the length type of PUSCH) in the parameter startSymbolAndLength of pusch-Config through RRC reconfiguration, it can be ensured that when SRS occupies the normal time slot, PUSCH can occupy the remaining symbols, avoiding waste of resources.

[0115] When there are many cells in the existing network, it is impossible to check the SRS interference for each cell all the time. The time slot occupied by SRS is set independently. The SRS sending position can be changed in time through the adaptation of SRS resources. While improving the rate of the good points, it also reduces the problem of the base station being unable to demodulate the SRS due to the poor SRS SNR, which leads to the user's uplink desynchronization.

[0116] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0117] Figure 4 A schematic diagram of the structure of a network device provided in an embodiment of the present application, such as Figure 4 As shown, the network device includes a memory 420, a transceiver 410 and a processor 400; wherein the processor 400 and the memory 420 may also be arranged physically separately.

[0118] The memory 420 is used to store computer programs; the transceiver 410 is used to send and receive data under the control of the processor 400.

[0119] Specifically, the transceiver 410 is used to receive and send data under the control of the processor 400 .

[0120] Among them, Figure 4 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 400 and memory represented by memory 420. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 410 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.

[0121] The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.

[0122] The processor 400 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0123] The processor 400 calls the computer program stored in the memory 420 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: periodically obtaining the interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot; and determining the time slots and symbols occupied by SRS resources based on the interference measurement results.

[0124] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0125] When the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the first uplink interference average value of the first time slot; wherein the first time slot includes the special time slot and the uplink time slot, and the first uplink interference average value of the first time slot is the average value of the interference measurement results on the last n uplink symbols of the first time slot.

[0126] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot includes:

[0127] Determine a first average interference minimum value, where the first average interference minimum value is a minimum value between a first uplink interference average value of the special time slot and a first uplink interference average value of the uplink time slot;

[0128] The time slots and symbols occupied by the SRS resources are determined according to a comparison result between the first average interference minimum value and the SRS interference threshold.

[0129] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first average interference minimum value and the SRS interference threshold includes:

[0130] When the first average interference minimum value is less than or equal to the SRS interference threshold, determine that the SRS resource occupies the last n uplink symbols in the second time slot; wherein the second time slot is the time slot corresponding to the first average interference minimum value in the first time slot;

[0131] When the first average interference minimum value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is the average value of the interference measurement results on m consecutive symbols of the last n uplink symbols of the second time slot, and m is a positive integer less than or equal to n-1.

[0132] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the second uplink interference average value of the second time slot includes:

[0133] Determine in sequence the second average minimum interference values ​​corresponding to different m values, and after each determination of the second average minimum interference value, perform the following steps: compare the second average minimum interference value with the SRS interference threshold, if the second average minimum interference value is greater than the SRS interference threshold, determine the second average minimum interference value corresponding to the next m value, if the second average minimum interference value is less than or equal to the SRS interference threshold, stop determining the second average minimum interference value corresponding to the subsequent m value, and determine that the SRS resource occupies m consecutive symbols corresponding to the second average minimum interference value in the second time slot;

[0134] The value of m decreases from n-1 to 1 in steps of 1, and the second average interference minimum value is the minimum value of all second uplink interference average values ​​corresponding to the same m value in the second time slot.

[0135] In some embodiments, the method further comprises:

[0136] After determining that the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtain the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot, and determine the first uplink interference average value of the first time slot based on the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot.

[0137] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0138] When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, it is determined that the SRS resource occupies the last n uplink symbols in the special time slot.

[0139] In some embodiments, the method further comprises:

[0140] According to the determined time slots and symbols occupied by the SRS resources, SRS configuration information is sent to the terminal.

[0141] In some embodiments, the method further comprises:

[0142] Physical uplink shared channel PUSCH configuration information is sent to the terminal, where the values ​​of the start symbol and the length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83.

[0143] It should be noted here that the above-mentioned network device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0144] Figure 5 A schematic diagram of the structure of the device for determining SRS resources provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the device comprises:

[0145] The acquisition unit 500 is used to periodically acquire interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot;

[0146] The determining unit 510 is configured to determine the time slots and symbols occupied by the SRS resources according to the interference measurement result.

[0147] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0148] When the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the first uplink interference average value of the first time slot; wherein the first time slot includes the special time slot and the uplink time slot, and the first uplink interference average value of the first time slot is the average value of the interference measurement results on the last n uplink symbols of the first time slot.

[0149] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot includes:

[0150] Determine a first average interference minimum value, where the first average interference minimum value is a minimum value between a first uplink interference average value of the special time slot and a first uplink interference average value of the uplink time slot;

[0151] The time slots and symbols occupied by the SRS resources are determined according to a comparison result between the first average interference minimum value and the SRS interference threshold.

[0152] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first average interference minimum value and the SRS interference threshold includes:

[0153] When the first average interference minimum value is less than or equal to the SRS interference threshold, determine that the SRS resource occupies the last n uplink symbols in the second time slot; wherein the second time slot is the time slot corresponding to the first average interference minimum value in the first time slot;

[0154] When the first average interference minimum value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is the average value of the interference measurement results on m consecutive symbols of the last n uplink symbols of the second time slot, and m is a positive integer less than or equal to n-1.

[0155] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the second uplink interference average value of the second time slot includes:

[0156] Determine in sequence the second average minimum interference values ​​corresponding to different m values, and after each determination of the second average minimum interference value, perform the following steps: compare the second average minimum interference value with the SRS interference threshold, if the second average minimum interference value is greater than the SRS interference threshold, determine the second average minimum interference value corresponding to the next m value, if the second average minimum interference value is less than or equal to the SRS interference threshold, stop determining the second average minimum interference value corresponding to the subsequent m value, and determine that the SRS resource occupies m consecutive symbols corresponding to the second average minimum interference value in the second time slot;

[0157] The value of m decreases from n-1 to 1 in steps of 1, and the second average interference minimum value is the minimum value of all second uplink interference average values ​​corresponding to the same m value in the second time slot.

[0158] In some embodiments, the acquisition unit 500 is further configured to:

[0159] After determining that the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtain the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot, and determine the first uplink interference average value of the first time slot based on the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot.

[0160] In some embodiments, determining the time slot and symbol occupied by the SRS resource according to the interference measurement result includes:

[0161] When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, it is determined that the SRS resource occupies the last n uplink symbols in the special time slot.

[0162] In some embodiments, the apparatus further comprises:

[0163] The first sending unit is used to send SRS configuration information to the terminal according to the determined time slot and symbol occupied by the SRS resource.

[0164] In some embodiments, the apparatus further comprises:

[0165] The second sending unit is used to send physical uplink shared channel PUSCH configuration information to the terminal, where the values ​​of the start symbol and length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83.

[0166] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0167] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0168] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0169] On the other hand, an embodiment of the present application further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the SRS resource determination method provided in the above embodiments.

[0170] It should be noted here that the non-transitory readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0171] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0172] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0173] The terminal involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0174] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0175] Network devices and terminals can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0176] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0177] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0178] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0179] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0180] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for determining a channel sounding reference signal SRS resource, characterized in that: Applied to network equipment, including: Periodically obtaining interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot; The time slot and symbol occupied by the SRS resource are determined according to the interference measurement result.

2. The method for determining SRS resources according to claim 1, characterized in that: The determining, according to the interference measurement result, the time slot and symbol occupied by the SRS resource comprises: When the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the first uplink interference average value of the first time slot; wherein the first time slot includes the special time slot and the uplink time slot, and the first uplink interference average value of the first time slot is the average value of the interference measurement results on the last n uplink symbols of the first time slot.

3. The method for determining SRS resources according to claim 2, characterized in that: The determining, according to the first uplink interference average value of the first time slot, the time slot and symbol occupied by the SRS resource includes: Determine a first average interference minimum value, where the first average interference minimum value is a minimum value between a first uplink interference average value of the special time slot and a first uplink interference average value of the uplink time slot; The time slots and symbols occupied by the SRS resources are determined according to a comparison result between the first average interference minimum value and the SRS interference threshold.

4. The method for determining SRS resources according to claim 3, characterized in that: The determining, according to a comparison result of the first average interference minimum value and the SRS interference threshold, a time slot and a symbol occupied by an SRS resource includes: When the first average interference minimum value is less than or equal to the SRS interference threshold, determine that the SRS resource occupies the last n uplink symbols in the second time slot; wherein the second time slot is the time slot corresponding to the first average interference minimum value in the first time slot; When the first average interference minimum value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is the average value of the interference measurement results on m consecutive symbols of the last n uplink symbols of the second time slot, and m is a positive integer less than or equal to n-1.

5. The method for determining SRS resources according to claim 4, characterized in that: The determining, according to the second uplink interference average value of the second time slot, the time slot and symbol occupied by the SRS resource includes: Determine in sequence the second average minimum interference values ​​corresponding to different m values, and after each determination of the second average minimum interference value, perform the following steps: compare the second average minimum interference value with the SRS interference threshold, if the second average minimum interference value is greater than the SRS interference threshold, determine the second average minimum interference value corresponding to the next m value, if the second average minimum interference value is less than or equal to the SRS interference threshold, stop determining the second average minimum interference value corresponding to the subsequent m value, and determine that the SRS resource occupies m consecutive symbols corresponding to the second average minimum interference value in the second time slot; The value of m decreases from n-1 to 1 in steps of 1, and the second average interference minimum value is the minimum value of all second uplink interference average values ​​corresponding to the same m value in the second time slot.

6. The method for determining SRS resources according to any one of claims 2 to 5, characterized in that: The method further comprises: After determining that the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtain the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot, and determine the first uplink interference average value of the first time slot based on the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot.

7. The method for determining SRS resources according to claim 1, characterized in that: The determining, according to the interference measurement result, the time slot and symbol occupied by the SRS resource comprises: When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, it is determined that the SRS resource occupies the last n uplink symbols in the special time slot.

8. The method for determining SRS resources according to any one of claims 1 to 5 or 7, characterized in that: The method further comprises: According to the determined time slots and symbols occupied by the SRS resources, SRS configuration information is sent to the terminal.

9. The method for determining SRS resources according to any one of claims 1 to 5 or 7, characterized in that: The method further comprises: Physical uplink shared channel PUSCH configuration information is sent to the terminal, where the values ​​of the start symbol and the length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83.

10. A network device, characterized in that: Including memory, transceiver, processor; a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Periodically obtaining interference measurement results on the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot; The time slot and symbol occupied by the SRS resource are determined according to the interference measurement result.

11. The network device according to claim 10, characterized in that: The determining, according to the interference measurement result, the time slot and symbol occupied by the SRS resource comprises: When the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the first uplink interference average value of the first time slot; wherein the first time slot includes the special time slot and the uplink time slot, and the first uplink interference average value of the first time slot is the average value of the interference measurement results on the last n uplink symbols of the first time slot.

12. The network device according to claim 11, characterized in that: The determining, according to the first uplink interference average value of the first time slot, the time slot and symbol occupied by the SRS resource includes: Determine a first average interference minimum value, where the first average interference minimum value is a minimum value between a first uplink interference average value of the special time slot and a first uplink interference average value of the uplink time slot; The time slots and symbols occupied by the SRS resources are determined according to a comparison result between the first average interference minimum value and the SRS interference threshold.

13. The network device according to claim 12, characterized in that: The determining, according to a comparison result of the first average interference minimum value and the SRS interference threshold, a time slot and a symbol occupied by an SRS resource includes: When the first average interference minimum value is less than or equal to the SRS interference threshold, determine that the SRS resource occupies the last n uplink symbols in the second time slot; wherein the second time slot is the time slot corresponding to the first average interference minimum value in the first time slot; When the first average interference minimum value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined according to the second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is the average value of the interference measurement results on m consecutive symbols of the last n uplink symbols of the second time slot, and m is a positive integer less than or equal to n-1.

14. The network device according to claim 13, characterized in that: The determining, according to the second uplink interference average value of the second time slot, the time slot and symbol occupied by the SRS resource includes: Determine in sequence the second average minimum interference values ​​corresponding to different m values, and after each determination of the second average minimum interference value, perform the following steps: compare the second average minimum interference value with the SRS interference threshold, if the second average minimum interference value is greater than the SRS interference threshold, determine the second average minimum interference value corresponding to the next m value, if the second average minimum interference value is less than or equal to the SRS interference threshold, stop determining the second average minimum interference value corresponding to the subsequent m value, and determine that the SRS resource occupies m consecutive symbols corresponding to the second average minimum interference value in the second time slot; The value of m decreases from n-1 to 1 in steps of 1, and the second average interference minimum value is the minimum value of all second uplink interference average values ​​corresponding to the same m value in the second time slot.

15. The network device according to any one of claims 11 to 14, characterized in that: The operations also include: After determining that the interference measurement result on at least one uplink symbol among the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtain the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot, and determine the first uplink interference average value of the first time slot based on the interference measurement result on at least one uplink symbol among the last n uplink symbols of the first time slot.

16. The network device according to claim 10, characterized in that: The determining, according to the interference measurement result, the time slot and symbol occupied by the SRS resource comprises: When the interference measurement result on each uplink symbol in the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, it is determined that the SRS resource occupies the last n uplink symbols in the special time slot.

17. The network device according to any one of claims 10 to 14 or 16, characterized in that: The operations also include: According to the determined time slots and symbols occupied by the SRS resources, SRS configuration information is sent to the terminal.

18. The network device according to any one of claims 10 to 14 or 16, characterized in that: The operations also include: Physical uplink shared channel PUSCH configuration information is sent to the terminal, where the values ​​of the start symbol and the length parameter in the PUSCH configuration information include at least one of 41, 55, 49 and 83.

19. A device for determining channel sounding reference signal SRS resources, characterized in that: include: An acquisition unit, used for periodically acquiring interference measurement results on the last n uplink symbols of a special time slot; the value of n is equal to the number of uplink symbols used to send SRS in the special time slot; The determining unit is used to determine the time slot and symbol occupied by the SRS resource according to the interference measurement result.

20. A non-transitory readable storage medium, characterized in that: The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 9.

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