CN110535581B

CN110535581B - Resource determination method, device and computer readable storage medium for uplink signal

Info

Publication number: CN110535581B
Application number: CN201810909865.8A
Authority: CN
Inventors: 王瑜新; 鲁照华; 蒋创新; 吴昊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2022-11-08
Anticipated expiration: 2038-08-10
Also published as: CN110535581A; WO2020030158A1

Abstract

The application discloses a resource determination method, equipment and a computer readable storage medium of an uplink signal, wherein the method is applied to a first communication node or a second communication node and comprises the following steps: and determining the resources of the SRS of the second communication node according to a predefined mode. According to the method and the device, the resource of the SRS is determined according to a predefined mode, the problem of how to count the sending number of the SRS after introducing a plurality of SRS symbols into the conventional uplink subframe of the LTE is solved, and therefore the frequency hopping of the SRS or the antenna switching of the SRS is successfully realized.

Description

Resource determination method, device and computer readable storage medium for uplink signal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a device, and a computer-readable storage medium for determining a resource of an uplink signal.

Background

The Sounding Reference Signal (SRS) is a Signal used between the second communication node device and the first communication node device to measure the Channel State Information (CSI). In a Long Term Evolution (LTE) system, a second communication Node, for example, a User Equipment (UE), periodically transmits an uplink SRS on a last data symbol of a transmission subframe according to parameters, such as a frequency band, a frequency domain position, a sequence cyclic shift, a period, and a subframe offset, indicated by a first communication Node, for example, an evolved Node B (e-Node-B, eNB). And the eNB judges the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling, closed-loop power control and the like according to the obtained CSI.

In the study of LTE-a Release 16 (LTE-a Release 16), it is proposed to consider introducing multiple SRS symbols to the uplink Normal Subframe (Normal Subframe) in order to enhance SRS capacity and coverage. However, after introducing a plurality of SRS symbols, how to determine resources of a plurality of SRS symbol resources has not been proposed yet in the related art.

Disclosure of Invention

In order to solve the foregoing technical problem, embodiments of the present invention provide a method, an apparatus, and a computer-readable storage medium for determining resources of an uplink signal, which are capable of determining resources of multiple SRS symbols.

The embodiment of the invention provides a resource determination method of an uplink signal, which comprises the following steps:

the first communication node determines the resources of the SRS of the second communication node according to a predefined mode.

Further, when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the method further includes:

determining that the second communication node reserves a guard interval of at least one time domain symbol between two adjacent time domain symbols of the SRS.

Further, the determined SRS resource includes parameters: SRS Transmission number n _SRS The SRS Transmission number n _SRS The calculation formula of (2) is as follows:

wherein n is _f Numbering the systematic frames, n _s Numbering time slots, T, within a radio frame _offset For SRS subframe offset, T _SRS For the period of the SRS transmission, the SRS is transmitted,

and the number of SRS symbols in the subframe is shown, R is a repetition factor, l' is the number of the SRS symbols in the subframe, m is the number of symbols of the reserved guard interval, and m is greater than or equal to 0.

Further, when the SRS is inconsistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the method further includes:

determining that the second communication node reserves a guard interval of at least one time domain symbol between the SRS and an adjacent physical uplink shared channel or physical uplink control channel.

Further, the adjacent physical uplink shared channel or physical uplink control channel includes at least one of:

the physical uplink shared channel or the physical uplink control channel in a subframe in which the SRS adjacent to the SRS is located; alternatively, the first and second liquid crystal display panels may be,

and the physical uplink shared channel or the physical uplink control channel of the next subframe adjacent to the subframe where the SRS adjacent to the SRS is located.

Further, the method further comprises:

the first communication node configures one or more SRS symbols for an uplink normal subframe of the second communication node.

Further, when the second communication node is configured as closed-loop transmit antenna selection enabled or open-loop transmit antenna selection enabled, the first communication node configures one SRS symbol for an uplink regular subframe of the second communication node.

Further, the determined SRS resource includes parameters: SRS Transmission number n _SRS The predefined manner includes:

the first communication node calculates the transmission number n of the SRS by the following formula _SRS ：

Wherein n is _f Numbering the systematic frames, n _s Numbering time slots, T, within a radio frame _offset For SRS subframe offset, T _SRS For the period of the SRS transmission,

is the number of SRS symbols within a subframe, R is the repetition factor,l' is the SRS symbol number in the subframe; alternatively, the first and second electrodes may be,

Wherein, n' _SRS Are intermediate calculated variables.

Further, the SRS resource includes a time domain position where the SRS is transmitted, and the time domain position includes:

the reciprocal M1 symbols of the first slot of the subframe, wherein M1 is an integer between 1 and 7;

a 2 nd to M2 nd last symbol of a second slot of the subframe, wherein M2 is an integer between 2 and 7.

Further, the SRS is an aperiodic SRS or a semi-persistent SRS.

The embodiment of the invention also provides a resource determination method of an uplink signal, which comprises the following steps:

and the second communication node determines the resource of the SRS of the second communication node according to a predefined mode.

Further, the determined SRS resource includes parameters: SRS Transmission number n _SRS The SRS Transmission number n _SRS The calculation formula of (c) is:

Further, when the SRS and an antenna port used by an adjacent physical uplink shared channel or physical uplink control channel are inconsistent, the method further includes:

the physical uplink shared channel or the physical uplink control channel in a subframe in which the SRS adjacent to the SRS is located; alternatively, the first and second electrodes may be,

Further, the determined SRS resource includes parameters: SRS Transmission number n _SRS The predefined manner comprises:

the second communication node calculates the SRS transmission number n by the following formula _SRS ：

Wherein n is _f Number system frame, n _s Numbering time slots, T, within a radio frame _offset For SRS subframe offset, T _SRS As SRSThe period of the transmission is such that,

the number of SRS symbols in the subframe is shown, R is a repetition factor, and l' is the number of the SRS symbols in the subframe; alternatively, the first and second electrodes may be,

Wherein, n' _SRS Are intermediate calculated variables.

Further, the SRS is an aperiodic SRS or a semi-persistent SRS.

Further, the method further comprises:

and the second communication node determines that the last SRS symbol or last SRS symbols of the uplink conventional subframe are the time domain positions of the SRS resources.

Further, when the second communication node is configured to be either closed-loop transmit antenna selection enabled or open-loop transmit antenna selection enabled, the second communication node determines a last SRS symbol of an uplink regular subframe as a time domain location of the SRS resource.

An embodiment of the present invention further provides an apparatus, including a processor and a memory, where:

the processor is configured to execute a resource determination program of the uplink signal stored in the memory to implement the steps of the resource determination method of the uplink signal according to any one of the above.

An embodiment of the present invention further provides a computer-readable storage medium, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the steps of the method for determining a resource of an uplink signal according to any one of the above.

An embodiment of the present invention further provides an apparatus, where the apparatus is a first communication node, and the apparatus includes a first determining module, where:

the first determining module is configured to determine, according to a predefined manner, resources of a sounding reference signal, SRS, of the second communication node.

Further, when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the first determining module is further configured to:

Further, when the SRS is inconsistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the first determining module is further configured to:

The embodiment of the present invention further provides a device, where the device is a second communication node, and the device includes a second determining module, where:

the second determining module is configured to determine, according to a predefined manner, resources of a sounding reference signal, SRS, of the device.

Further, when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the second determining module is further configured to:

Further, when the SRS is inconsistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the second determining module is further configured to:

Compared with the prior art, the method comprises the steps that a first communication node and a second communication node determine the resource of a SRS (sounding reference signal) according to a predefined mode, and the resource of the SRS is determined according to the predefined mode, so that the problem of counting the sending number of the SRS after introducing a plurality of SRS symbols into a conventional uplink subframe of LTE (long term evolution) is solved, and the frequency hopping of the SRS or the antenna switching of the SRS is successfully realized;

furthermore, at least one guard interval of the time domain symbol is reserved between two adjacent time domain symbols of the SRS, so that the UE is ensured to carry out antenna switching transmission of the SRS on the premise of meeting antenna switching time delay, and the SRS transmission method is perfected;

furthermore, by reserving a guard interval of at least one time domain symbol between the SRS and the adjacent physical uplink shared channel or physical uplink control channel, when different antennas are adopted for transmitting different uplink signals such as PUSCH, DMRS, SRS and the like, the UE can be smoothly switched in the time domain, and the SRS transmitting method is perfected.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a flowchart illustrating a method for determining resources of an uplink signal according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an apparatus according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating another method for determining uplink signal resources according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another apparatus (first communication node) according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another device (second communication node) according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

In the LTE system, a Physical Downlink Control Channel (PDCCH) is used to carry Downlink Control Information (DCI), where the DCI may include uplink and Downlink scheduling Information and uplink power Control Information. DCI formats (formats) are classified into DCI formats 0, 1A, 1B, 1C, 1D, 2A, 3,3A, etc., and the DCI formats 2B, 2C, 2D are added in LTE-a Release 12 (LTE-a Release 12) to support various applications and transmission modes. The first communication node, e.g. eNB, may configure the second communication node device, e.g. UE, through the downlink control information, or the second communication node device accepts configuration of higher layers (highers), which is also referred to as configuring the UE through higher layer signaling.

In a study of LTE-a Release 10 (LTE-a Release 10) it was proposed: in uplink communication, non-precoded SRS should be used, namely: antenna specific SRS, while reference signals DMRS for demodulation of PUSCH are precoded. The first communication node can estimate the original CSI of the uplink by receiving the non-precoded SRS, and the precoded DMRS cannot enable the first communication node to estimate the original CSI of the uplink. At this time, when the UE transmits the non-precoded SRS using multiple antennas, the SRS resource required by each UE increases, which also causes the number of UEs that can be multiplexed simultaneously in the system to decrease. The UE may send the SRS through two triggering modes, namely, a higher layer signaling (also referred to as triggering through trigger type 0) or downlink control information (also referred to as triggering through trigger type 1), where the triggering is based on the higher layer signaling and the triggering is based on the downlink control information, and the triggering is based on the higher layer signaling and the non-periodic SRS. The LTE-A Release 10 is added with a mode of non-periodically sending the SRS, so that the utilization rate of the SRS resource is improved to a certain extent, and the flexibility of resource scheduling is improved.

For a conventional uplink subframe, the existing LTE protocol only allows one symbol to be used for transmitting an SRS, and the calculation formula is as follows:

wherein N is _SP For the number of switching points from downlink to uplink, n, within a radio frame _f Numbering the systematic frames, n _s Numbering time slots, T, within a radio frame _offset For SRS subframe offset, T _SRS For the period of the SRS transmission,

the operator is a round-down operator;

the first communication node may be a base station of a macro cell, a base station or a transmission node of a small cell (small cell), a transmission node in a high frequency communication system, a transmission node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a User Equipment (UE), a mobile phone, a portable device, an automobile, and the like.

The uplink signal may be an SRS, or an uplink demodulation reference signal, or an uplink signal for performing random access, or a PUSCH signal, or a phase tracking reference signal.

The information of the antenna or the antenna group may be identification information of the antenna or the antenna group, port information of the antenna or the antenna group, and may also be beam identification information corresponding to the antenna or the antenna group.

The SRS resource indication information may be information such as SRS sequence, SRS time-frequency location parameter, etc.

By switching the antennas of the SRS, the problem of channel reciprocity when the number of transmission links and the number of reception links of the second communication node are not the same can be solved, for example, when the second communication node is configured as 1T2R, 2T4R, or 4T 8R. Where T denotes the number of transmission links and R denotes the number of reception links, for example, 1T2R denotes that the number of transmission links is 1 and the number of reception links is 2.

As shown in fig. 1, an embodiment of the present invention provides a method for determining resources of an uplink signal, including the following steps:

step 101: the first communication node determines the resources of the SRS of the second communication node in a predefined manner.

In an example of this embodiment, the determined SRS resource includes parameters: SRS Transmission Number (Transmission Number) n _SRS The predefined manner includes:

when the SRS transmission number n is _SRS When the time domain symbol is taken as granularity, the first communication node calculates the sending number n of the SRS by the following formula _SRS ：

is in a sub-frameThe number of SRS symbols, R is a repetition factor, l' is the SRS symbol number within the subframe,

the operator is a round-down operator;

for example, one radio frame includes 10 subframes, one subframe includes 2 slots, so n _s May be any value between 0 and 19, provided that T is _SRS Is configured to 10,T _offset Is configured to be a plurality of the 8,

is configured to be 4, namely 4 SRS slot symbols are transmitted in the 8 th subframe in every 10 subframes, and l' is any integer between 0 and 3;

when R =1, calculated n _SRS 0,1,2,3,4,5,6,7 … …, where the SRS symbols transmitted in each subframe have different frequency domain positions, or perform SRS antenna switching in units of 1 symbol in the time domain;

when R =2, calculated n _SRS It may be 0,0,1,1,2,2,3,3 … …, where the frequency domain positions of SRS symbols transmitted in each subframe are the same two by two, or the SRS antenna switching is performed in units of 2 symbols in the time domain.

Through the calculation formula of the invention, the problem of how to count the sending number of the SRS after introducing a plurality of SRS symbols into the conventional uplink subframe of the LTE is solved, thereby successfully realizing the frequency hopping of the SRS or the antenna switching of the SRS.

When the SRS transmission number n _SRS When the sub-frame is taken as the granularity, the first communication node calculates the SRS transmission number n by the following formula _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

For example, still taking the SRS configuration example described above, when R =1, n is calculated _SRS Possibly 0,0,0,0,1,1,1,1 … …; when R =2, calculated n _SRS It may be 0,0,0,0,1,1,1,1 … …, that is, when R =1 or R =2, the SRS performs antenna switching in units of subframes in the time domain.

Through the above calculation formula, when the first communication node configures a plurality of SRS symbols for the uplink normal subframe of the second communication node, the transmission numbers of the plurality of SRS symbols can be calculated. After the transmission number of the SRS symbol is calculated, the UE antenna index for transmitting the SRS may be calculated by a correlation calculation formula in the prior art. For example, when the number of transmit antennas of the UE is 2, the UE antenna index for transmitting the SRS is implemented based on the following formula: :

(1) When frequency hopping is not enabled, for local and full measurement bandwidth, the UE antenna index for sending SRS is:

a(n _SRS )＝n _SRS mod2, mod is the remainder operator;

(2) UE antenna index for transmitting SRS when frequency hopping is enabled

(where Π is the multiplicative sign, no matter N _b The value of which is to be taken,

) (ii) a When the SRS is transmitted non-periodically, K is the actual N _b′ The value of (c).

Wherein, C _SRS Configuring bandwidth for SRS(SRS bandwidth configuration)，B _SRS Is SRS Bandwidth (SRS-Bandwidth), b _hop For jumping to bandwidth, N _b′ For the number of segments, m, in the b-th SRS bandwidth tree structure _SRS,N The number of RBs occupied by SRS sequence in N-th level SRS bandwidth tree structure, e.g., when the uplink bandwidth satisfies

N0, N1, N2, N3 are as shown in table 1 below:

TABLE 1

In this embodiment, the method further includes:

In an example of this embodiment, when the second communication node is configured as a closed-loop transmit antenna selection enable or an open-loop transmit antenna selection enable, the first communication node configures one SRS symbol for an uplink normal subframe of the second communication node.

In another example of this embodiment, when the second communication node is configured to perform multi-antenna transmission, the first communication node configures one or more SRS symbols for an uplink normal subframe of the second communication node.

It should be noted that when the UE transmit antenna selection is enabled, the UE does not expect to be configured with more than one number of SRS symbols for the uplink normal subframe;

when the UE is configured for multi-antenna transmission, the uplink regular subframe of the UE may be configured to more than one number of SRS symbols.

In another example of this embodiment, when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the method further includes:

the first communication node determines that the second communication node reserves a guard interval of at least one time domain symbol between two adjacent time domain symbols of the SRS.

By reserving at least one guard interval of the time domain symbol between two adjacent time domain symbols of the SRS, the UE can be ensured to carry out antenna switching transmission of the SRS on the premise of meeting the antenna switching time delay.

In this example, the SRS transmission number n _SRS The calculation formula of (2) is as follows:

For example, still taking the SRS configuration example described above, assuming that m =1, when R =1, n is calculated _SRS It may be 0,0,1,1,2,2,3,3 … …, where the first digit in each repeated number is the actual SRS symbol transmitted and the second digit is the guard interval, i.e., no SRS symbol is transmitted; when R =2, calculated n _SRS It may be 0,0,0,1,1,1,2,2,2 … …, where the first and second digits of each repeated digit are the actual transmitted SRS symbol, and the third digit is the guard interval, i.e., no SRS symbol is transmitted.

For example, for subsequent antenna switching capable of supporting 1T4R, the number of SRS symbols allowed to be configured in one subframe may be supported to 7.

In this embodiment, when the SRS and the antenna port used by the adjacent physical uplink shared channel or physical uplink control channel are not consistent, the method further includes:

the first communication node determines that Y protection intervals of time domain symbols are reserved between the SRS and an adjacent physical uplink shared channel or physical uplink control channel by the second communication node, wherein Y is an integer greater than 1 or equal to 1.

In one example of this embodiment, Y is an integer between 1 and 10, including 1 and 10.

In this embodiment, the adjacent physical uplink shared channel or physical uplink control channel includes at least one of the following:

For example, when an antenna port used by a first SRS symbol in a subframe and an adjacent physical uplink shared channel or physical uplink control channel is not consistent with an antenna port of an SRS, a guard interval of Y symbols is reserved between the physical uplink shared channel or physical uplink control channel and the SRS; alternatively, the first and second electrodes may be,

and when the antenna port used by the last SRS symbol in the subframe is inconsistent with the antenna port used by the adjacent physical uplink shared channel or physical uplink control channel, reserving Y symbol protection intervals between the physical uplink shared channel or physical uplink control channel and the SRS, wherein the reserved Y symbol protection intervals can be positioned on the subframe where the SRS is positioned or positioned on the next subframe adjacent to the subframe where the SRS is positioned.

By reserving Y guard intervals of time domain symbols between the SRS and the adjacent physical uplink shared channel or physical uplink control channel, UE can be ensured to be smoothly switched in the time domain when different antennas are adopted to transmit different uplink signals such as PUSCH, DMRS and SRS.

In this embodiment, the SRS resource includes a time domain position where the SRS is transmitted, and the time domain position includes:

the reciprocal M1 symbols of the first slot of the subframe, wherein M1 is an integer between 1 and 7, including 1 and 7;

a 2 nd to M2 nd last symbol of a second slot of the subframe, wherein M2 is an integer between 2 and 7, including 2 and 7;

in this embodiment, the SRS is an aperiodic SRS or a semi-persistent SRS.

By adding a plurality of SRS symbols, the coverage area and the capacity of the SRS are enhanced.

As shown in fig. 2, an embodiment of the present invention further provides an apparatus, which includes a processor 20 and a memory 21, where:

the processor 20 is configured to execute a resource determination program of an uplink signal stored in the memory 21, so as to implement the steps of the resource determination method of an uplink signal according to any one of the above.

An embodiment of the present invention further provides a computer-readable storage medium, which stores one or more programs, where the one or more programs are executable by one or more processors to implement the steps of the method for determining resources of an uplink signal according to any one of the above.

In this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

As shown in fig. 3, an embodiment of the present invention further provides a method for determining resources of an uplink signal, including the following steps:

step 301: and the second communication node determines the SRS resource of the second communication node according to a predefined mode.

In an example of this embodiment, the determined SRS resource includes parameters: SRS Transmission number n _SRS The predefined manner includes:

when the SRS transmission number n _SRS When the time domain symbol is taken as granularity, the second communication node calculates the sending number n of the SRS by the following formula _SRS ：

is the number of SRS symbols in the subframe, R is the repetition factor, l' is the SRS symbol number in the subframe,

the operator is a round-down operator;

Through the calculation formula provided by the invention, the problem of counting the sending number of the SRS after introducing a plurality of SRS symbols into the conventional uplink subframe of the LTE is solved, so that the frequency hopping of the SRS or the antenna switching of the SRS is successfully realized.

When the SRS transmission number n is _SRS When the sub-frame is taken as the granularity, the second communicationThe signal node calculates the sending number n of the SRS by the following formula _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

For example, still taking the SRS configuration example described above, when R =1, n is calculated _SRS Possibly 0,0,0,0,1,1,1,1 … …; when R =2, calculated n _SRS It may be 0,0,0,0,1,1,1,1 … …, that is, the SRS is antenna switched in units of subframes in the time domain regardless of R =1 or R = 2.

Through the above calculation formula, when the first communication node configures a plurality of SRS symbols for the uplink normal subframe of the second communication node, the transmission numbers of the plurality of SRS symbols can be calculated. It should be noted that, after the transmission number of the SRS symbol is calculated, the UE antenna index for transmitting the SRS may be calculated by using a correlation calculation formula in the prior art, and the correlation calculation is described above and is not described herein again.

In this embodiment, the method further includes:

the uplink regular subframe of the second communication node is configured as one or more SRS symbols.

In an example of this embodiment, when the second communication node is configured as closed-loop transmit antenna selection enabled or open-loop transmit antenna selection enabled, the uplink normal subframe of the second communication node is configured as one SRS symbol.

In another example of this embodiment, when the second communication node is configured for multi-antenna transmission, the uplink normal subframe of the second communication node is configured as one or more SRS symbols.

It should be noted that, when the UE transmit antenna selection is enabled, the UE does not expect to be configured with more than one number of SRS symbols for the uplink normal subframe;

For example, still taking the SRS configuration as an example, assuming that m =1, when R =1, n is calculated _SRS It may be 0,0,1,1,2,2,3,3 … …, where the first digit in each repeated number is the actual SRS symbol transmitted and the second digit is the guard interval, i.e., no SRS symbol is transmitted; when R =2, calculated n _SRS Perhaps 0,0,0,1,1,1,2,2,2 … …, where the first and second digits of each repeated digit are the actual transmitted SRS symbol, and the third digit is the actual transmitted SRS symbolThe word is a guard interval, i.e., no SRS symbol is transmitted.

and determining that the second communication node reserves Y guard intervals of time domain symbols between the SRS and an adjacent physical uplink shared channel or physical uplink control channel, wherein Y is an integer greater than 1 or equal to 1.

For example, when an antenna port used by a first SRS symbol in a subframe and an adjacent physical uplink shared channel or physical uplink control channel is inconsistent with an antenna port of an SRS, a guard interval of Y symbols is reserved between the physical uplink shared channel or physical uplink control channel and the SRS; alternatively, the first and second electrodes may be,

a 2 nd to M2 nd symbol of a second slot of the subframe, wherein M2 is an integer between 2 and 7, including 2 and 7;

in this embodiment, the SRS is an aperiodic SRS or a semi-persistent SRS.

In this embodiment, the method further includes:

and the second communication node determines the time domain position of the resource of which the SRS symbol of the last one or the last more of the uplink regular subframe is the SRS.

In this embodiment, when the second communication node is configured to enable closed-loop transmission antenna selection or enable open-loop transmission antenna selection, the second communication node determines a time domain position of a resource where a last SRS symbol of an uplink regular subframe is an SRS.

In this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a U disk, a ROM, a RAM, a removable hard disk, a magnetic disk, or an optical disk.

As shown in fig. 4, an embodiment of the present invention further provides an apparatus, where the apparatus is a first communication node, and the apparatus includes a first determining module 401, where:

the first determining module 401 is configured to determine, according to a predefined manner, an SRS resource of a second communication node.

In an example of this embodiment, the SRS resource determined by the first determining module 401 includes parameters: SRS Transmission number n _SRS The predefined manner includes:

when the SRS transmission number n is _SRS When the time domain symbol is used as the granularity, the first determining module 401 of the resource calculates the sending number n of the SRS by the following formula _SRS ：

the number of SRS symbols in the subframe is shown, R is a repetition factor, and l' is the number of the SRS symbols in the subframe;

when the SRS transmission number n is _SRS When the subframe is taken as the granularity, the first determining module 401 calculates the SRS transmission number n according to the following formula _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

In this embodiment, the first determining module 401 is further configured to: and configuring one or more SRS symbols for the uplink conventional subframe of the second communication node.

In an example of this embodiment, when the second communication node is configured as a closed-loop transmit antenna selection enable or an open-loop transmit antenna selection enable, the first determining module 401 configures one SRS symbol for an uplink normal subframe of the second communication node.

In another example of this embodiment, when the second communication node is configured to perform multi-antenna transmission, the first determining module 401 configures one or more SRS symbols for an uplink normal subframe of the second communication node.

In another example of this embodiment, when the antenna ports used by two adjacent SRSs are not identical, the first determining module 401 is further configured to: determining that the second communication node reserves a guard interval of at least one time domain symbol between the two adjacent SRSs.

is the number of SRS symbols in a subframe, R is the repetition factorAnd l' is the SRS symbol number in the subframe, m is the symbol number of the reserved guard interval, and m is greater than or equal to 0.

In this embodiment, when the SRS and the antenna port used by the adjacent physical uplink shared channel or physical uplink control channel are not consistent, the first determining module 401 is further configured to: determining that the second communication node reserves a guard interval of at least one time domain symbol between the SRS and an adjacent physical uplink shared channel or physical uplink control channel.

in this embodiment, the SRS is an aperiodic SRS or a semi-persistent SRS.

As shown in fig. 5, an embodiment of the present invention further provides an apparatus, where the apparatus is a second communication node, and the apparatus includes a second determining module 501, where:

the second determining module 501 is configured to determine SRS resources of the device according to a predefined manner.

In an example of this embodiment, the SRS resource determined by the second determining module 501 includes parameters: SRS Transmission number n _SRS The predefined manner includes:

when the SRS transmission number n is _SRS When the time domain symbol is used as the granularity, the second determining module 501 calculates the SRS transmission number n according to the following formula _SRS ：

when the SRS transmission number n _SRS When the subframe is taken as the granularity, the second determining module 501 calculates the SRS transmission number n according to the following formula _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

In another example of this embodiment, when the antenna ports used by two adjacent SRSs are not identical, the second determining module 501 is further configured to: determining that the second communication node reserves a guard interval of at least one time domain symbol between the two adjacent SRSs.

For example, for subsequent antenna switching capable of supporting 1T4R, the number of SRS symbols allowable to be configured in one subframe may be supported to 7.

In this embodiment, when the SRS and the antenna port used by the adjacent physical uplink shared channel or physical uplink control channel are not consistent, the second determining module 501 is further configured to: determining that the second communication node reserves a guard interval of at least one time domain symbol between the SRS and an adjacent physical uplink shared channel or physical uplink control channel.

in this embodiment, the SRS is an aperiodic SRS or a semi-persistent SRS.

In this embodiment, the second determining module 501 is further configured to: and determining the time domain position of the resource of the SRS, which is the last SRS symbol or last SRS symbols of the uplink normal subframe.

In this embodiment, when the second communication node is configured to enable closed-loop transmission antenna selection or enable open-loop transmission antenna selection, the second determining module 501 determines a time domain position of a resource where a last SRS symbol of an uplink regular subframe is an SRS.

It will be apparent to those skilled in the art that the modules or steps of the embodiments of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different from that described herein, or they may be separately fabricated into integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A resource determination method of an uplink signal comprises the following steps:

the method comprises the steps that a first communication node determines resources of a measurement reference signal (SRS) of a second communication node according to a predefined mode;

when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the method further comprises:

determining that the second communication node reserves a guard interval of at least one time domain symbol between two adjacent time domain symbols of the SRS;

the determined SRS resource comprises parameters: SRS Transmission number n _SRS The SRS Transmission number n _SRS The calculation formula of (2) is as follows:

wherein n is _f Numbering the systematic frames, n _s Is oneTime slot numbering, T, in radio frames _offset For SRS subframe offset, T _SRS For the period of the SRS transmission,

and the number of SRS symbols in the subframe is shown, R is a repetition factor, l' is the number of SRS symbols in the subframe, m is the number of symbols of the reserved guard interval, and m is greater than or equal to 0.

2. The method according to claim 1, wherein when the SRS is not consistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the method further comprises:

3. The method of claim 2, wherein the adjacent physical uplink shared channel or physical uplink control channel comprises at least one of:

4. The method of claim 1, further comprising:

5. The method of claim 4, wherein the first communication node configures one SRS symbol for an uplink normal subframe of the second communication node when the second communication node is configured as closed-loop transmit antenna selection enabled or open-loop transmit antenna selection enabled.

6. The method of claim 1, wherein the determined SRS resource comprises parameters: SRS Transmission number n _SRS The predefined manner includes:

the first communication node further calculates the transmission number n of the SRS by the following formula _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

7. The method of claim 1, wherein the SRS resource comprises a time domain position at which the SRS is transmitted, and wherein the time domain position comprises:

8. The method of claim 1, wherein the SRS is an aperiodic SRS or semi-persistent SRS.

9. A resource determination method of an uplink signal comprises the following steps:

the second communication node determines the resource of the SRS of the second communication node according to a predefined mode;

wherein n is _f Number system frame, n _s Numbering time slots, T, within a radio frame _offset For SRS subframe offset, T _SRS For the period of the SRS transmission,

10. The method according to claim 9, wherein when the SRS is not consistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the method further comprises:

11. The method of claim 10, wherein the adjacent physical uplink shared channel or physical uplink control channel comprises at least one of:

the physical uplink shared channel or the physical uplink control channel in the subframe where the SRS adjacent to the SRS is located; alternatively, the first and second electrodes may be,

12. The method of claim 9, wherein the determined SRS resource comprises parameters: SRS Transmission number n _SRS The predefined manner includes:

the second communication node further calculates the transmission number n of the SRS by the following formula _SRS ：

the number of SRS symbols in the subframe is shown, R is a repetition factor, and l' is the number of the SRS symbols in the subframe; alternatively, the first and second liquid crystal display panels may be,

the second communication node further calculates the transmission number of the SRS by the following formulan _SRS ：

Wherein, n' _SRS Are intermediate calculated variables.

13. The method of claim 9, wherein the SRS resource comprises a time domain location where the SRS is transmitted, and wherein the time domain location comprises:

14. The method of claim 9, wherein the SRS is an aperiodic SRS or semi-persistent SRS.

15. The method of claim 9, further comprising:

16. The method of claim 15, wherein the second communication node determines a last SRS symbol of an uplink regular subframe as a time domain location of the SRS resource when the second communication node is configured as closed loop transmit antenna selection enabled or open loop transmit antenna selection enabled.

17. An apparatus for resource determination of an uplink signal, comprising a processor and a memory, wherein:

the processor is configured to execute a resource determination program of the uplink signal stored in the memory to implement the steps of the resource determination method of the uplink signal according to any one of claims 1 to 16.

18. A computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the method for resource determination of an uplink signal according to any one of claims 1 to 16.

19. An apparatus for resource determination of an uplink signal, the apparatus being a first communications node, the apparatus comprising a first determining module, wherein:

the first determining module is configured to determine, according to a predefined manner, resources of a Sounding Reference Signal (SRS) of a second communication node;

when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the first determining module is further configured to:

the resource of the SRS determined by the first determining module comprises the parameters: SRS Transmission number n _SRS The SRS transmission number n _SRS The calculation formula of (c) is:

20. The apparatus of claim 19, wherein when the SRS is not consistent with an antenna port used by an adjacent physical uplink shared channel or a physical uplink control channel, the first determining module is further configured to:

21. A resource determination device for uplink signals, the device being a second communication node, the device comprising a second determination module, wherein:

the second determining module is configured to determine, according to a predefined manner, resources of a sounding reference signal, SRS, of the device;

when the antenna ports used by two adjacent time domain symbols of the SRS are not identical, the second determining module is further configured to:

the resource of the SRS determined by the second determining module includes parameters: SRS Transmission number n _SRS The SRS transmission number n _SRS The calculation formula of (2) is as follows:

22. The apparatus of claim 21, wherein when the SRS is not consistent with an antenna port used by an adjacent physical uplink shared channel or an adjacent physical uplink control channel, the second determining module is further configured to: