Method, apparatus and storage medium for determining srs resource

Abstract

Embodiments of the present application provide a method, device and storage medium for determining SRS resource, the method comprising: periodically obtaining, by a network device, an interference measurement result 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 SRS in the special time slot; and determining, according to the interference measurement result, a time slot and a symbol occupied by SRS resource. Thus, SRS can no longer be fixedly sent in a special time slot, but can be adaptively selected according to the interference condition, so as to reduce SRS interference and improve user perception.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and particularly relates to a method and device for determining SRS resources and a storage medium. BACKGROUND

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

[0003] Currently, the SRS is sent on the last few symbols of a special time slot, and when the SRS of the special time slot is interfered, the signal to noise ratio (SNR) of the SRS deteriorates, which greatly affects user perception. SUMMARY

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

[0005] In a first aspect, the embodiments of the present application provide a method for determining SRS resources, applied to a network device, and including the following steps.

[0006] Periodically obtaining an interference measurement result 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 SRS in the special time slot;

[0007] Determining a time slot and a symbol occupied by SRS resources according to the interference measurement result.

[0008] In a second aspect, the embodiments of the present application further provide a network device including a memory, a transceiver and a processor.

[0009] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations.

[0010] Periodically obtaining an interference measurement result 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 SRS in the special time slot;

[0011] Determining a time slot and a symbol occupied by SRS resources according to the interference measurement result.

[0012] In a third aspect, the embodiments of the present application further provide a device for determining SRS resources, including the following.

[0013] The acquisition unit is configured 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 for sending SRS in the special time slot;

[0014] The determination unit is configured to determine the time slot and symbol occupied by the SRS resource according to the interference measurement results.

[0015] In a fourth aspect, the embodiments of the present application further provide a non-transitory readable storage medium, which stores a computer program, and the computer program is used to make a processor execute the SRS resource determination method in the first aspect.

[0016] In a fifth aspect, the embodiments of the present application further provide a communication device, which stores a computer program, and the computer program is used to make the communication device execute the SRS resource determination method in the first aspect.

[0017] In a sixth aspect, the embodiments of the present application further provide a processor readable storage medium, which stores a computer program, and the computer program is used to make a processor execute the SRS resource determination method in the first aspect.

[0018] In a seventh aspect, the embodiments of the present application further provide a chip product, which stores a computer program, and the computer program is used to make the chip product execute the SRS resource determination method in the first aspect.

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

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiment or related art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0021] Figure 1 The LTE and NR frame structure comparison example provided by the related art is shown in the following figure;

[0022] Figure 2A flowchart of a method for determining SRS resources provided by an embodiment of the present application is shown in FIG. 1.

[0023] Figure 3 An example flowchart of a method for determining SRS resources provided by an embodiment of the present application is shown in FIG. 2.

[0024] Figure 4 A structure diagram of a network device provided by an embodiment of the present application is shown in FIG. 3.

[0025] Figure 5 A structure diagram of a device for determining SRS resources provided by an embodiment of the present application is shown in FIG. 4. DETAILED DESCRIPTION

[0026] In the embodiments of the present application, the term "and / or" is used to describe the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

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

[0028] In the embodiments of the present application, the terms "first", "second", and the like 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 interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are usually of the same type and do not limit the number of objects, for example, the first object can be one or more.

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0030] Currently, SRS is fixed in special time slot transmission. When there is interference in the special time slot SRS, such as many projects cannot completely clear the frequency due to various reasons, when the 5G new radio (NR) base station is opened, the co-frequency long term evolution (LTE) signal will cause interference to the SRS of the NR, thereby causing the SRS SNR to deteriorate, affecting the rate of the middle point, good point user, and the poor point (good point, middle point, poor point is divided according to the synchronization signal reference signal received power (ss-rsrp), synchronization signal signal to interference and noise ratio (ss-sinr)) User may be unable to demodulate SRS due to too poor SRS SNR, resulting in frequent uplink out-of-sync of poor point users and inability to perform services.

[0031] Figure 1 The related art provides a comparison example diagram of LTE and NR frame structure, as shown in Figure 1 When the 5G base station uses a 5ms single period frame structure, the subframe configuration is DDDDDDDSUU, and the symbol configuration of the special time slot S is 6:4:4 (D:GP:U). Currently, SRS is fixed on the last 4 symbols of the special time slot for transmission. From Figure 1 It can be seen that the uplink symbols in the special time slots of LTE and NR are completely aligned. When the SRS of LTE and the SRS of 5G are both transmitted in the uplink symbols of the special time slot, because the transmission positions completely overlap, LTE will cause great interference to the demodulation of the SRS of 5G, and the high SRS interference greatly affects the user perception.

[0032] To solve the above problems, the embodiments of the present application provide a solution, which can adaptively select the transmission position of SRS according to the interference condition of the special time slot, so as to reduce the SRS interference and improve the user perception.

[0033] Figure 2 The flowchart of the SRS resource determination method provided by the embodiments of the present application can be applied to a network device (for example, a base station), as shown in Figure 2 The method comprises the following steps:

[0034] Step 200, periodically acquire the interference measurement result of the last n uplink symbols of the special time slot; the value of n is equal to the number of uplink symbols for transmitting SRS in the special time slot.

[0035] Step 201, according to the interference measurement result, determine the time slot and symbol occupied by the SRS resource.

[0036] Specifically, to achieve adaptive optimization of SRS resources, in the embodiments 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, which is not limited herein.

[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 can also be obtained.

[0038] For different frame structures, the positions and quantities of the special time slot and the uplink time slot in a subframe can be different. The SRS resource determination method provided by the present application can be applied to various different 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.

[0039] For example, it is assumed that the base station uses the 5ms single-period frame structure shown in FIG. 1, the subframe configuration is 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 n of uplink symbols for transmitting SRS in the special time slot is equal to 4. The base station can periodically obtain the interference measurement results on the last 4 uplink symbols of slot7, or also obtain the interference measurement results on the last 4 uplink symbols of slot8 and the last 4 uplink symbols of slot9. Figure 1

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

[0041] Of course, the interference measurement result can also be any other measurement result that can be used to characterize the interference on the uplink symbol, which is not limited herein.

[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 resource, i.e., determine which time slot and which symbol the SRS should be transmitted on, according to the interference measurement results.​

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

[0044] It should be noted that the method for determining the SRS resource in the embodiments of the present application can exist in the form of an openable function in the network device, for example, a function of "SRS resource adaptation" is set in the network device, which can be opened or closed by operation of the network device, or it can be a system function that is opened by default in the network device, and the specific mode is determined according to the actual situation of the network device, which will not be described in detail hereinafter.

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

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

[0047] In the case that the interference measurement result on at least one of 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 comprises 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, the determining the time slot and symbol occupied by the SRS resource according to the interference measurement results comprises:

[0049] In the case that the interference measurement result on each of the last n uplink symbols of the special time slot is less than or equal to the SRS interference threshold, the last n uplink symbols of the special time slot are determined to be occupied by the SRS resource.

[0050] Specifically, when the network device determines the time slot and symbol occupied by the SRS resource according to the interference measurement results, it can first determine the interference of the last n uplink symbols of the special time slot (i.e. the time slot for sending the SRS in the prior art), and determine the time slot and symbol occupied by the SRS resource according to the determination result.

[0051] When the interference measurement result on each of 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, which is not limited herein.

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

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

[0054] After determining that the interference measurement result on at least one of the last n uplink symbols of the special time slot is greater than the SRS interference threshold, the interference measurement result on at least one of the last n uplink symbols of the first time slot is obtained, and the first uplink interference average value of the first time slot is determined according to the interference measurement result on at least one of the last n uplink symbols of the first time slot.

[0055] For example, after determining that there is a symbol in the last n uplink symbols of the special time slot whose interference measurement result is greater than the SRS interference threshold, 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 of the interference measurement results on the last n uplink symbols of the special time slot and the average of the interference measurement results on the last n uplink symbols of the uplink time slot, so as to make more accurate judgment.

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

[0057] The base station uses the method as described above Figure 1The illustrated 5ms single cycle frame structure is an example (for ease of understanding, the following frame structure is taken as an example), slot 7 is a special slot, slot 8 and slot 9 are uplink slots, n is equal to 4, and the base station can first determine the interference of the last 4 uplink symbols of slot 7 (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 slot 7.

[0059] If the interference measurement results of at least one symbol among slot7_symbol10, slot7_symbol11, slot7_symbol12 and slot7_symbol13 are greater than the SRS interference threshold, the base station can make further determination. First, determine the average value of the interference measurement results on the last 4 uplink symbols of slot 7, the average value of the interference measurement results on the last 4 uplink symbols of slot 8, and the average value of the interference measurement results on the last 4 uplink symbols of slot 9, and then determine the time slot and symbol occupied by the SRS resource according to the three average values.

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

[0061] determining a first minimum average interference, the first minimum average interference being the minimum value of the first uplink interference average value of the special slot and the first uplink interference average value of the uplink slot;

[0062] determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold.

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

[0064] Then, the network device compares the first minimum average interference 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, the determining the time slot and the symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold comprises:

[0066] In the case that the first minimum average interference is less than or equal to the SRS interference threshold, determining 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 minimum average interference in the first time slot.

[0067] In the case that the first minimum average interference is greater than the SRS interference threshold, determining the time slot and the symbol occupied by the SRS resource 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 the continuous m symbols in the last n uplink symbols of the second time slot, and the m is a positive integer less than or equal to n-1.

[0068] Specifically, if the first minimum average interference 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 time slot corresponding to the first minimum average interference.

[0069] For example, assuming that the average value of the interference measurement results on the last 4 uplink symbols of slot8 is the first minimum average interference, and the first minimum average interference is 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 slot8.

[0070] If the first minimum average interference is greater than the SRS interference threshold, the network device can further determine whether there are fewer continuous uplink symbols in the time slot corresponding to the first minimum average interference that can satisfy the SRS interference threshold, so as to determine the time slot and the symbol occupied by the SRS resource.

[0071] For example, assuming that the average value of the interference measurement results on the last 4 uplink symbols of slot8 is the first minimum average interference, and the first minimum average interference is greater than the SRS interference threshold, the base station can reduce the range of the continuous uplink symbols occupied by the SRS, such as determining whether the average value of the interference measurement results on the continuous 3 uplink symbols in the last 4 uplink symbols of slot8 is less than or equal to the SRS interference threshold, so as to determine the time slot and the symbol occupied by the SRS resource.

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

[0073] determining the second average interference minimum value corresponding to each m value in turn, and after determining each second average interference minimum value, performing the following steps: comparing the second average interference minimum value with the SRS interference threshold, if the second average interference minimum value is greater than the SRS interference threshold, determining the second average interference minimum value corresponding to the next m value, if the second average interference minimum value is less than or equal to the SRS interference threshold, stopping determination of the second average interference minimum value corresponding to subsequent m values, and determining that the SRS resource occupies the continuous m symbols corresponding to the second average interference minimum value in the second time slot;

[0074] wherein the m value is sequentially decreased from n-1 to 1 by a step of 1, and the second average interference minimum value is the minimum value of all second average uplink interference 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, the base station first determines whether the average value of the interference measurement results on the continuous 3 uplink symbols in the last 4 uplink symbols of slot8 is less than or equal to the SRS interference threshold.

[0076] Specifically, assuming that the last 4 uplink symbols of slot8 are sequentially recorded as slot8_symbol10, slot8_symbol11, slot8_symbol12 and slot8_symbol13, the base station can calculate the average value of the interference measurement results on the 3 continuous symbols of slot8_symbol10, slot8_symbol11 and slot8_symbol12 (denoted as Avg3-1), and the average value of the interference measurement results on the 3 continuous symbols of slot8_symbol11, slot8_symbol12 and slot8_symbol13 (denoted as Avg3-2), compare the minimum value (assuming Avg3-1) of the two average values 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 3 continuous symbols of 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 continuous uplink symbols for judgment, and next determine whether the average value of the interference measurement results on the continuous 2 uplink symbols in the last 4 uplink symbols of slot8 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 (denoted as Avg2-1), the average value of the interference measurement results on the two consecutive symbols slot8_symbol11 and slot8_symbol12 (denoted as Avg2-2), and the average value of the interference measurement results on the two consecutive symbols slot8_symbol12 and slot8_symbol13 (denoted as Avg2-3). The minimum value of these three average values ​​(let's assume it's Avg2-1) 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 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. Next, it can be determined whether there is an uplink symbol in the last four uplink symbols of slot8 whose interference measurement result 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 4 uplink symbols of slot8, and the interference measurement result on slot8_symbol10 is less than or equal to the SRS interference threshold, then 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 being transmitted in a special time slot.

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

[0081] Based on the determined time slots and symbols used for SRS resources, SRS configuration information is sent to the terminal.

[0082] For example, if the time slots and symbols occupied by SRS resources in the current cycle are different from those in the previous cycle, the network device can send SRS configuration information to its subordinate terminals based on the time slots and symbols occupied by SRS resources in the current cycle. Thus, the terminals can determine the transmission location of SRS based on the SRS configuration information.

[0083] Of course, network devices can also send SRS configuration information to their subordinate terminals after each determination of the time slots and symbols occupied by SRS resources.

[0084] In some embodiments, in the case that the network device determines that the SRS resource occupies a special slot, the network device can issue the corresponding special slot through the parameter periodicityAndOffset-p of srs-Config in a Radio Resource Control (RRC) reconfiguration message, and control the starting symbol position and length of the SRS through the parameters SymbolStartPosition and nrofSymbols of srs-Config in the RRC reconfiguration message.

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

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

[0087] The terminal is sent physical uplink shared channel (PUSCH) configuration information, and the starting symbol and length parameters in the PUSCH configuration information include at least one of 41, 55, 49, and 83.

[0088] Specifically, considering that when the SRS is sent in an uplink slot, the physical uplink shared channel (PUSCH) cannot be sent in the full slot, embodiments of the present application propose that more optional values can be added to the starting symbol and length parameters (startSymbolAndLength) in the PUSCH configuration information (pusch-Config) to ensure normal scheduling of the PUSCH. Currently, only the value 27 is taken, indicating that the PUSCH occupies all 14 symbols of the uplink slot.

[0089] In the embodiments, the startSymbolAndLength values of 41, 55, 49, and 83 respectively indicate that the number of symbols occupied by the PUSCH is 13, 12, 11, and 10, respectively, and correspondingly, there can be 1, 2, 3, and 4 symbols in the uplink slot for other purposes, such as sending the SRS.

[0090] In some embodiments, the network device can send the PUSCH configuration information to the terminal in a case where the SRS resource occupies the uplink slot, and the value of the start symbol and length parameter in the PUSCH configuration information includes at least one of 41, 55, 49, and 83, or the value of the start symbol and length parameter in the PUSCH configuration information corresponds to the number of symbols in the uplink slot occupied by the SRS resource. For example, the value of the start symbol and length parameter in the PUSCH configuration information can include 41, 55, 49, and 83; or the SRS resource occupies the last 3 symbols in the uplink slot, and the value of the start symbol and length parameter in the PUSCH configuration information can be 49.

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

[0092] In some embodiments, the network device can send the PUSCH configuration information in advance, and the value of the start symbol and length parameter in the PUSCH configuration information includes at least one of 41, 55, 49, and 83. Subsequently, the terminal can determine the sending position of the SRS according to the SRS configuration information, and if the SRS resource occupies the uplink slot, the terminal can determine the occupied symbols of the PUSCH according to the number of symbols occupied by the SRS resource.

[0093] The method provided by the above embodiments of the present application is illustrated by examples of specific application scenarios.

[0094] Example 1:

[0095] For example, the SRS resource occupies the last 3 symbols in the uplink slot, and the value of the start symbol and length parameter in the PUSCH configuration information can be 49. Figure 1The illustrated NR 5ms single period frame structure is taken as an example, the subframe configuration is DDDDD DDSUU, one 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 the srs interference measurement results of slot7, slo8 and slot9 are 12 in total: 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, 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 the base station

[0097]

[0098] Figure 3 The SRS resource determination process provided by the embodiment of the application is shown in the example diagram as follows: Figure 3 The main steps include:

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

[0100] 2. The base station measures the interference measurement results of the last 4 uplink symbols of slot7, i.e. s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot, according to the "base station detects slot7 srs symbol interference period".

[0101] 3. The base station judges whether there is a value higher than the parameter "SRS interference threshold" in s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot.

[0102] 3.1, if s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot are all below the "SRS interference threshold", then the default is still to send SRS in slot 7.

[0103] 3.2, if any of s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot are above the "SRS interference threshold", the base station starts to detect the interference on the last 4 uplink symbols of slot 7, slot 8 and slot 9, and gets the interference measurement results on the last 4 uplink symbols of slot 7, s7_srs_symbol10_prbiot, s7_srs_symbol11_prbiot, s7_srs_symbol12_prbiot and s7_srs_symbol13_prbiot, on the last 4 uplink symbols of slot 8, s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot and s8_srs_symbol13_prbiot, and on the last 4 uplink symbols of slot 9, s9_srs_symbol10_prbiot, s9_srs_symbol11_prbiot, s9_srs_symbol12_prbiot and s9_srs_symbol13_prbiot, respectively.

[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_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot), Avg(s9_srs_symbol10_prbiot, s9_srs_symbol11_prbiot, s9_srs_symbol12_prbiot, s9_srs_symbol13_prbiot)). Find the average of uplink interference of 4 consecutive symbols in each time slot, and then find the minimum of the average of uplink interference of 4 consecutive symbols in all time slots. Determine whether the minimum is less than or equal to the "SRS interference threshold". If the minimum is less than or equal to the "SRS interference threshold", the SRS sending time slot and symbol can be determined. For example, the average interference of slot8 is the minimum and less than the "SRS interference threshold", so the SRS can be determined to be sent in the last 4 symbols of slot8.

[0105] 3.2.2, if the minimum found in 3.2.1 is still greater than the "SRS interference threshold", the base station checks whether the time slot with the minimum average interference has 3 consecutive symbols satisfying the "SRS interference threshold" (the following formula assumes that the average interference of slot8 is the minimum). Find 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 determine whether the minimum of the average interference of 3 consecutive symbols in slot8 is less than or equal to the "SRS interference threshold". If the minimum of the average interference of 3 consecutive symbols is less than or equal to the "SRS interference threshold", the SRS sending 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", so the SRS can be determined to be sent in symbol10, symbol11 and symbol12 of slot8.

[0106] 3.2.3, If the minimum value calculated in 3.2.2 is still greater than the parameter "SRS interference threshold", the base station checks whether the time slot with the minimum average interference has 2 consecutive symbols satisfying the "SRS interference threshold" (the following formula assumes that slot8 has the minimum 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 judges whether the minimum value of the average interference of the 2 consecutive symbols in slot8 is less than or equal to the "SRS interference threshold". If the minimum value of the average interference of the 2 consecutive symbols is less than or equal to the "SRS interference threshold", the SRS transmission time slot and symbol are determined. For example, if Avg(s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot) is the minimum value and is less than the "SRS interference threshold", it is determined that the SRS is transmitted in symbol11 and symbol12 of slot8.

[0107] 3.2.4, If the minimum value calculated in 3.2.3 is still greater than the parameter "SRS interference threshold", the base station checks whether the time slot with the minimum average interference has 1 symbol satisfying the "SRS interference threshold" (the following formula assumes that slot8 has the minimum average interference). Calculate Min(s8_srs_symbol10_prbiot, s8_srs_symbol11_prbiot, s8_srs_symbol12_prbiot, s8_srs_symbol13_prbiot), and the base station judges 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 are determined. For example, if s8_srs_symbol12_prbiot is the minimum value and is less than the "SRS interference threshold", it is determined that the SRS is transmitted in symbol12 of slot8. If the minimum value is still greater than the "SRS interference threshold", it is determined that the SRS is transmitted in a special time slot.

[0108] 4, The symbol and time slot occupied by the SRS resource are determined, and the SRS resource is configured.

[0109] 4.1, It is judged whether the SRS transmission time slot contains a normal time slot.

[0110] 4.1.1, if the SRS sending time slot does not contain a normal time slot (i.e. SRS is sent in a special time slot), the corresponding time slot is issued 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.

[0111] 4.1.2, if the SRS sending time slot contains a normal time slot (i.e. SRS is sent in an uplink time slot), the corresponding time slot is issued 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. The parameters startSymbolAndLength in pusch-Config in the RRC reconfiguration message are added {41, 55, 49, 83} (when SRS is sent in a normal time slot, PUSCH cannot be sent in a full time slot, and the corresponding field needs to be added in startSymbolAndLength to ensure normal scheduling of PUSCH).

[0112] Through the periodic test of SRS sending position interference, the base station can timely understand the SRS interference situation, and move the SRS sending position to a time slot and symbol without interference, which can improve the SRS SNR and improve the downlink rate and uplink rate.

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

[0114] When SRS adapts to a normal time slot, the parameters startSymbolAndLength in pusch-Config in the RRC reconfiguration are added {41, 55, 49, 83} (to increase the length type of PUSCH), which can ensure that when SRS occupies a normal time slot, PUSCH can occupy the remaining symbols, avoiding resource waste.

[0115] When there are many cells in the existing network, it is impossible to check SRS interference for each cell at all times, and the SRS occupied time slot is independently set. Through the adaptation of SRS resources, the sending position of SRS can be changed in time, which can improve the medium and good point rate, and also reduce the problem that the poor point SRS SNR is too poor to be demodulated by the base station, thereby causing the user's uplink to lose step.

[0116] The methods and apparatuses provided in the various embodiments of this application are based on the same concept. Since the methods and apparatuses solve problems in similar ways, the implementations of the apparatuses and methods can refer to each other, and repeated details will not be repeated.

[0117] Figure 4 This is a schematic diagram of the network device provided in the embodiments of this 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 physically arranged 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, transceiver 410 is used to receive and send data under the control of processor 400.

[0120] Among them, Figure 4 In this application, 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 together. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described herein. The bus interface provides an interface. The transceiver 410 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, and other transmission media.

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

[0122] The processor 400 can 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 can also adopt a multi-core architecture.

[0123] The processor 400 invokes a computer program stored in the memory 420 to execute any of the methods provided by the embodiments of the present application according to the obtained executable instructions, for example: periodically obtaining an interference measurement result 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 SRS in the special time slot; determining the time slot and symbol occupied by the SRS resource according to the interference measurement result.

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

[0125] In the case that the interference measurement result on at least one of 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 comprises the special time slot and an 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, the determining the time slot and symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot comprises:

[0127] determining a first minimum average interference, which is the minimum value of the first uplink interference average value of the special time slot and the first uplink interference average value of the uplink time slot;

[0128] determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold.

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

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

[0131] in the case that the first minimum average interference is greater than the SRS interference threshold, determining the time slot and symbol occupied by the SRS resource according to a 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 the continuous m symbols of the last n uplink symbols of the second time slot, and the m is a positive integer less than or equal to n-1.

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

[0133] determining the second minimum average interference value corresponding to different m values in sequence, and after determining the second minimum average interference value each time, performing the following steps: comparing the second minimum average interference value with the SRS interference threshold, if the second minimum average interference value is greater than the SRS interference threshold, determining the second minimum average interference value corresponding to the next m value, if the second minimum average interference value is less than or equal to the SRS interference threshold, stopping determining the second minimum average interference value corresponding to subsequent m values, and determining that the SRS resource occupies the continuous m symbols corresponding to the second minimum average interference value in the second time slot;

[0134] wherein the m value decreases from n-1 to 1 by 1 as a step, and the second minimum average interference value is the minimum value of all second uplink interference average values corresponding to the same m value of the second time slot.

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

[0136] after determining that the interference measurement result on at least one of the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtaining the interference measurement result on at least one of the last n uplink symbols of the first time slot, and determining the first uplink interference average value of the first time slot according to the interference measurement result on at least one of the last n uplink symbols of the first time slot.

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

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

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

[0140] sending SRS configuration information to the terminal according to the determined time slot and symbol occupied by the SRS resource.

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

[0142] sending physical uplink shared channel (PUSCH) configuration information to the terminal, and the value of the starting symbol and the length parameter in the PUSCH configuration information includes at least one of 41, 55, 49 and 83.

[0143] It should be noted that the network device provided by the embodiments of the present application can realize all the method steps achieved by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0144] Figure 5 The structural schematic diagram of the SRS resource determination apparatus provided by the embodiments of the present application is shown in FIG. 1, which comprises: Figure 5

[0145] The obtaining unit 500 is configured to periodically obtain 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 for transmitting SRS in the special time slot.

[0146] The determining unit 510 is configured to determine the time slot and symbol occupied by the SRS resource according to the interference measurement results.

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

[0148] In the case that the interference measurement result on at least one uplink symbol of 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 comprises 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, the determining the time slot and symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot comprises:

[0150] determining a first minimum average interference, which is the minimum value of the first uplink interference average value of the special time slot and the first uplink interference average value of the uplink time slot;

[0151] determining the time slot and symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold.

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

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

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

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

[0156] determining the second average interference minimum value corresponding to different m values in sequence, and performing the following steps after determining the second average interference minimum value each time: comparing the second average interference minimum value with the SRS interference threshold, determining the second average interference minimum value corresponding to a next m value in a case that the second average interference minimum value is greater than the SRS interference threshold, and stopping determining the second average interference minimum value corresponding to a subsequent m value and determining that the SRS resource occupies the continuous m symbols corresponding to the second average interference minimum value in the second time slot in a case that the second average interference minimum value is less than or equal to the SRS interference threshold.

[0157] wherein the m values decrease from n-1 to 1 by 1 as a step, and the second average interference minimum value is a minimum value in all second uplink interference average values corresponding to the same m value of the second time slot.

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

[0159] obtaining the interference measurement result on at least one uplink symbol in the last n uplink symbols of the first time slot after determining that the interference measurement result on at least one uplink symbol in the last n uplink symbols of the special time slot is greater than the SRS interference threshold, and determining the first uplink interference average value of the first time slot according to the interference measurement result on at least one uplink symbol in the last n uplink symbols of the first time slot.

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

[0161] In a case that the interference measurement result on each of 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 of the special time slot.

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

[0163] The first sending unit is configured 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 includes:

[0165] The second sending unit is configured to send physical uplink shared channel (PUSCH) configuration information to the terminal, and the value of the start symbol and the length parameter in the PUSCH configuration information includes 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 illustrative, and is only a logical function division. When actually implemented, another division mode can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0167] When the integrated unit is realized 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 solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0168] It should be noted that the above apparatus provided by the embodiments of the present application can realize all the method steps realized by the above method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0169] In another aspect, the embodiments of the present application also provide a non-transitory readable storage medium, which stores a computer program for causing a processor to perform the method for determining SRS resource provided by each of the above embodiments.

[0170] It should be noted that the non-transitory readable storage medium provided by the embodiments of the present application can implement all the method steps of the above method embodiments and achieve the same technical effects, and the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[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 a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD)), etc.

[0172] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable systems can be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile system (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, and the like. Among these various systems, there are terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), and the like.

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

[0174] The network device according to the embodiments of the present applicationapplicationbe a base station, whichapplicationinclude multiple cells serving terminals. According to different application scenarios, the base stationapplicationalsobe called an access point, orapplicationalsome other name. The network deviceapplicationalserve as a router between received air frames and Internet Protocol (IP) packets, between a wireless terminal device and the rest of an access network, whichapplicationinclude an Internet Protocol (IP) communication network. The network deviceapplicationalserve to coordinate management of properties of an air interface. For example, the network device according to the embodiments of the present applicationapplicationalsbe a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), an evolutional network device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in the embodiments of the present application. In some network structures, the network deviceapplicationinclude a centralized unit (CU) node and a distributed unit (DU) node, whichapplicationalsbe arranged geographically apart.

[0175] The network device and the terminalapplicationalsuse one or more antennas for Multi Input Multi Output (MIMO) transmission, whichapplicationalsbe Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the shape and number of antenna combinations, the MIMO transmissionapplicationalsbe 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or diversity transmission, precoding transmission or beamforming transmission, etc.

[0176] Those skilled in the art will appreciate that embodiments of the application can be readily used as software, hardware, or a combination of software and hardware. In one

[0177] The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic

[0178] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic

[0179] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic Figure 1 The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic

[0180] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the apparatus and methods described herein, equivalents and substitutions can be made. Any and all such modifications and variations are intended to be included herein.

Claims

1. A method for determining Channel Sounding Reference Signal (SRS) resources, characterized in that, The application is applied to a network device, comprising: the last of the special time slots is periodically acquired n interference measurement result on the last of the special time slots; the value of the parameter n the value of the parameter is equal to the number of uplink symbols in the special time slot used for sending SRS determining the time slot and the symbol occupied by the SRS resource according to the interference measurement result; the step of determining the time slot and the symbol occupied by the SRS resource according to the interference measurement result comprises: In the case that the interference measurement result on at least one of 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; and / or, In the case that the interference measurement result on each of 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.

2. The method for determining SRS resources according to claim 1, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot comprises: determining a first minimum average interference, the first minimum average interference being the minimum value of the first uplink interference average value of the special time slot and the first uplink interference average value of the uplink time slot; determining the time slot and the symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold.

3. The method of determining SRS resources according to claim 2, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold comprises: In a case where the first minimum average interference is less than or equal to the SRS interference threshold, it is determined that an SRS resource occupies the last n uplink symbol in a second time slot; wherein the second time slot is a time slot corresponding to the first minimum average interference in the first time slot. In the case that the first average interference minimum value is greater than the SRS interference threshold, SRS resource occupied time slots and symbols are determined according to a second uplink interference average value of the second time slot; wherein the second uplink interference average value of the second time slot is an average value of interference measurement results on continuous symbols in the last n symbols of the second time slot, and the m is a positive integer less than or equal to m -1. n ​ 4. The method of determining SRS resources according to claim 3, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the second uplink interference average value of the second time slot comprises: Determine the differences in sequence m The second average interference minimum value corresponding to the selected value is determined. After each determination of the second average interference minimum value, the following steps are performed: compare the second average interference minimum value with the SRS interference threshold. If the second average interference minimum value is greater than the SRS interference threshold, then determine the next... m The second average minimum interference value corresponding to the selected value is used. If the second average minimum interference value is less than or equal to the SRS interference threshold, the determination of subsequent values ​​is stopped. m The second average minimum interference value corresponding to the value is taken, and the continuous value corresponding to the second average minimum interference value in the second time slot occupied by SRS resources is determined. m One symbol; Wherein, the second average interference minimum value is the minimum value of all second uplink interference average values corresponding to the same time slot with the value of the second time slot being taken as a step from -1 to 1 in turn. m n -1 in turn to 1, the second average interference minimum value is the minimum value of all second uplink interference average values corresponding to the same time slot with the value of the second time slot being taken as a step from -1 to 1 in turn. m -1 in turn to 1, the second average interference minimum value is the minimum value of all second uplink interference average values corresponding to the same time slot with the value of the second time slot being taken​ 5. The method of determining SRS resources according to any one of claims 1 to 4, characterized in that, the method further comprises: after determining the interference measurement result of at least one of the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtaining the interference measurement result of at least one of the last n uplink symbols of the first time slot, and determining the first uplink interference average value of the first time slot according to the interference measurement result of at least one of the last n uplink symbols of the first time slot.

6. The method of determining SRS resources according to any one of claims 1 to 4, characterized in that, the method further comprises: sending SRS configuration information to the terminal according to the determined time slot and the symbol occupied by the SRS resource.

7. The method of determining SRS resources according to any one of claims 1 to 4, characterized in that, the method further comprises: sending physical uplink shared channel (PUSCH) configuration information to the terminal, the value of the start symbol and the length parameter in the PUSCH configuration information comprising at least one of 41, 55, 49 and 83.

8. A network device, comprising: comprising a memory, a transceiver and a processor; the memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations: the last of the special time slots is periodically acquired n interference measurement result on the last of the special time slots; the value of the parameter n the value of the parameter is equal to the number of uplink symbols in the special time slot used for sending SRS determining the time slot and the symbol occupied by the SRS resource according to the interference measurement result; the step of determining the time slot and the symbol occupied by the SRS resource according to the interference measurement result comprises: In the case that the interference measurement result on at least one of 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; and / or, In the case that the interference measurement result on each of 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.

9. The network device of claim 8, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the first uplink interference average value of the first time slot comprises: determining a first minimum average interference, the first minimum average interference being the minimum value of the first uplink interference average value of the special time slot and the first uplink interference average value of the uplink time slot; determining the time slot and the symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold.

10. The network device of claim 9, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the comparison result of the first minimum average interference and the SRS interference threshold comprises: In a case where the first minimum average interference is less than or equal to the SRS interference threshold, it is determined that an SRS resource occupies the last n uplink symbol in a second time slot; wherein the second time slot is a time slot corresponding to the first minimum average interference in the first time slot. If the minimum average interference value is greater than the SRS interference threshold, the time slot and symbol occupied by the SRS resource are determined based on the average uplink interference value of the second time slot; wherein, the average uplink interference value of the second time slot is the last value of the second time slot. n consecutive uplink symbols m The average value of the interference measurement results on each symbol, the m Less than or equal to n A positive integer of -1.

11. The network device of claim 10, wherein, the step of determining the time slot and the symbol occupied by the SRS resource according to the second uplink interference average value of the second time slot comprises: Determine the differences in sequence m The second average interference minimum value corresponding to the selected value is determined. After each determination of the second average interference minimum value, the following steps are performed: compare the second average interference minimum value with the SRS interference threshold. If the second average interference minimum value is greater than the SRS interference threshold, then determine the next... m The second average minimum interference value corresponding to the selected value is used. If the second average minimum interference value is less than or equal to the SRS interference threshold, the determination of subsequent values ​​is stopped. m The second average minimum interference value corresponding to the value is taken, and the continuous value corresponding to the second average minimum interference value in the second time slot occupied by SRS resources is determined. m One symbol; Wherein, the second average interference minimum value is the minimum value of all the second uplink interference average values corresponding to the same time slot. m The value of the second average interference minimum value decreases from 1 to 1 by steps of 1. n The second average interference minimum value is the minimum value of all the second uplink interference average values corresponding to the same time slot. m The value of the second average interference minimum value decreases from 1 to 1 by steps of 1.

12. The network device of any of claims 8 to 11, wherein, the operation further comprises: after determining that the interference measurement result on at least one of the last n uplink symbols of the special time slot is greater than the SRS interference threshold, obtaining an interference measurement result on at least one of the last n uplink symbols of the first time slot, and determining a first uplink interference average value of the first time slot according to the interference measurement result on at least one of the last n uplink symbols of the first time slot.

13. The network device of any of claims 8 to 11, wherein, the operation further comprises: sending SRS configuration information to the terminal according to the determined time slot and the symbol occupied by the SRS resource.

14. The network device of any of claims 8 to 11, wherein, the operation further comprises: sending physical uplink shared channel (PUSCH) configuration information to the terminal, the value of the start symbol and the length parameter in the PUSCH configuration information comprising at least one of 41, 55, 49 and 83.

15. A device for determining Channel Sounding Reference Signal (SRS) resources, characterized in that, comprising: The acquisition unit is configured to periodically acquire an interference measurement result on the last uplink symbol of the special time slot. n The acquisition unit is configured to periodically acquire an interference measurement result on the last uplink symbol of the special time slot. the n value of the special slot is equal to the number of uplink symbols used for transmitting SRS in the special slot; a determining unit, configured to determine the time slot and the symbol occupied by the SRS resource according to the interference measurement result; the step of determining the time slot and the symbol occupied by the SRS resource according to the interference measurement result comprises: In the case that the interference measurement result on at least one of 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; and / or, In the case that the interference measurement result on each of 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.

16. A non-transitory readable storage medium, characterized in that, The non-transitory readable storage medium stores a computer program for causing the processor to execute the method of any one of claims 1 to 7.

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