Reference signal transmission method and device, terminal, base station and storage medium

Abstract

The present application proposes a reference signal transmission method and device, terminal, base station and storage medium, wherein the reference signal sending method includes: determining that the frequency domain position occupied by the reference signal meets the predetermined conditions, wherein the predetermined conditions include: there are non-continuous frequency bands in the frequency domain position occupied by the reference signal, and the union of the frequency bands occupied by the reference signal is less than the frequency hopping bandwidth; sending the reference signal at the determined frequency domain position; wherein the frequency hopping bandwidth is the bandwidth determined according to the two farthest frequency domain positions in the frequency domain position occupied by the reference signal or the predetermined bandwidth obtained by receiving the first signaling message, wherein the predetermined bandwidth is the bandwidth corresponding to the frequency hopping configuration range notified in the first signaling message; and one of the frequency bands is a PRB. Through the present invention, the problem that the SRS pattern in LTE in the related art cannot meet the requirements of NR is solved.

Description

[0001] This application is a divisional application based on the Chinese patent application with application number 201710720425.3 and application date August 21, 2017. The entire content of the Chinese patent application is hereby incorporated into this application for reference. Technical Field

[0002] The present invention relates to the field of communications, and in particular to a reference signal transmission method and device, a terminal, a base station and a storage medium. Background Art

[0003] In LTE, the structure of the sounding reference signal (SRS) adopts a tree structure such as Figure 1 As shown, SRS has two transmission modes: frequency hopping and non-frequency hopping. In the frequency hopping mode, its frequency hopping pattern is obtained based on the following formula:

[0004]

[0005]

[0006] For SRS except for the uplink pilot time slot (UpPTS),

[0007]

[0008] For SRS transmitted on UpPTS,

[0009]

[0010]

[0011]

[0012]

[0013] In formula (6)

[0014]

[0015] in is the comb offset, k TC is the total number of dressing levels, also known as RPF (repetition factor). SRS It is used to determine the frequency domain bandwidth length parameter information occupied by SRS in a time domain symbol, that is, the tree level corresponding to the frequency domain bandwidth occupied by SRS in a time domain symbol. m can be obtained by looking up the table according to the b value. SRS,b ,n RRCis the frequency domain location information of SRS, which is a multiple of 4, b hop is the frequency hopping range configuration, when b hop <B SRS Frequency hopping occurs only when the frequency is set to zero, otherwise it does not hop. is the number of PRBs corresponding to the uplink system bandwidth allocated to this terminal, The number of subcarriers in a PRB is 12.n f is the frame index, n hf The value is 0 in the first half of the wireless frame and 1 in the second half of the wireless frame. SP is the number of special subframes in a radio frame, k TC ,B SRS ,n RRC , b hop These are all high-level configurations. Figure 1 In the tree structure shown, there are a total of 4 SRSs with different bandwidth lengths, namely {32PRB, 16PRB, 8PRB, 4PRB}. Figure 1 The length of the oblique line in the middle is 4PRB frequency domain position, and its corresponding frequency domain bandwidth index in the frequency domain bandwidth level of b=0,1,2 is n0=0,n1=0,n2=0,n3=.

[0016] Specifically, when configuring b hop =0,B SRS =3,n RRC = 0, 8 SRS time domain symbols are required to complete a complete frequency hopping. Figure 2 is a schematic diagram of a frequency hopping pattern in LTE, such as Figure 2 As shown, starting from the 9th time domain symbol, the frequency domain position occupied by SRS and Figure 2 The time domain symbol occupied by SRS on the first time domain symbol in is the same, Figure 2 The 8 time domain symbols shown constitute a frequency hopping cycle.

[0017] From the above formula and diagram, we can see that in LTE, by setting b hop , UE will b hop The corresponding tree structure contains all B SRS All leaves in the bandwidth level have completed frequency hopping. That is, the frequency hopping required to complete one time is In NR, when the bandwidth supported by the base station is different from the bandwidth supported by the terminal, for example, the base station is 100MHz and the terminal is 1MHz, the preferred bandwidth of 1MHz for this terminal is better within the range of 100MHz. If the LTE frequency hopping mode is used, at least 100 SRS time domain symbols are required. The delay is too long and cannot be tolerated by the system. In NR, when based on beam transmission, the frequency selection is further reduced, and a new frequency hopping pattern solution needs to be considered.

[0018] In short, the SRS transmission mode in LTE cannot adapt well to the many requirements of NR. It is necessary to further consider the relevant improvement mode of SRS so that it can adapt to the many requirements of NR.

[0019] With respect to the above-mentioned technical problems in the related technologies, no effective solutions have been proposed yet. Summary of the invention

[0020] The embodiments of the present invention provide a reference signal transmission method and apparatus, a terminal, a base station, and a storage medium, so as to at least solve the problem in the related art that the SRS pattern in LTE cannot meet the requirements of NR.

[0021] According to one embodiment of the present invention, a reference signal sending method is provided, comprising: determining that a frequency domain position occupied by a reference signal satisfies a predetermined condition, wherein the predetermined condition comprises: there are non-continuous frequency bands at the frequency domain position occupied by the reference signal, and the union of the frequency bands occupied by the reference signal is smaller than a frequency hopping bandwidth; sending the reference signal at the determined frequency domain position; wherein the frequency hopping bandwidth is a bandwidth determined based on two frequency domain positions farthest apart among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to a frequency hopping configuration range notified in the first signaling message; and wherein one frequency band is a PRB.

[0022] Optionally, the existence of a non-continuous frequency band in the frequency domain position occupied by the reference signal includes at least one of the following: in a frequency hopping cycle, there is a non-continuous frequency band in the frequency domain position occupied by the reference signal; there is a non-continuous frequency band in the frequency domain position occupied by the reference signal in a frequency hopping manner.

[0023] Optionally, the frequency hopping cycle satisfies at least one of the following characteristics: in different frequency hopping cycles, the frequency domain position occupied by the reference signal has repeated frequency bands; in different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; there is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping cycle and the time domain parameters, and the second mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping cycle and the time domain parameters.

[0024] Optionally, the predetermined condition also includes: the frequency domain positions occupied by the reference signals in a frequency hopping manner are equally spaced on the frequency hopping bandwidth.

[0025] Optionally, when there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies at least one of the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is A true subset of a frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; wherein, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, and there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index is an index of multiple frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level includes a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; wherein N is an integer greater than or equal to 1.

[0026] Optionally, the frequency domain bandwidth index occupied by the reference signal further satisfies: when the frequency domain bandwidth level belongs to a frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index occupied by the reference signal changes with time.

[0027] Optionally, the frequency hopping bandwidth level set satisfies at least one of the following: the levels in the frequency hopping bandwidth level set are non-continuous; the maximum level in the frequency hopping bandwidth level set is less than or equal to a first level, wherein the first level is the maximum frequency domain bandwidth level among the frequency domain bandwidth levels corresponding to the reference signal; the frequency hopping bandwidth level set may be an empty set; on one time domain symbol, the reference signal corresponds to more than two frequency hopping bandwidth level sets; the frequency hopping bandwidth level set information is carried in the received signaling information.

[0028] Optionally, the frequency domain position k(t) occupied by the reference signal is determined by:

[0029]

[0030]

[0031]

[0032] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is a set of frequency domain bandwidth levels.

[0033] Optionally, before determining the frequency domain position occupied by the reference signal, the method further includes: obtaining at least one of the following parameters through the second signaling information and / or the agreed table: B, N b , n b,orig , k org , b hopA , b hopA_min , b hopA_max ; Among them, b hopA ={b,b hopA_min ≤b≤b hopA_max}, b hopA_min , b hopA_max Is a non-negative integer or b hopA_min , b hopA_max is a non-negative integer less than B.

[0034] Optionally, b hopA Satisfy at least one of the following: max(b hopA )≤B; b hopA Includes non-contiguous frequency domain bandwidth level indexes; b hopA It can be an empty set; on a time domain symbol, the reference signal corresponds to more than two b hopA .

[0035] Optionally, in the case that the reference signal frequency domain bandwidth is multi-level, the method also includes: receiving a second signaling message, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for reference signal hopping in a frequency hopping bandwidth level set; wherein, a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

[0036] Optionally, in the case where the reference signal frequency domain bandwidth is multi-level, the reference signal satisfies at least one of the following characteristics: the frequency domain bandwidth level of the reference signal is divided into multiple frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level; on a time domain symbol, the reference signal corresponds to more than two frequency domain bandwidth indexes in a frequency domain bandwidth level; the reference signal corresponds to more than two starting frequency domain bandwidth level information; the reference signal corresponds to more than two ending frequency domain bandwidth level information; the reference signal first performs a frequency domain bandwidth hopping within the frequency domain bandwidth group, and then performs a frequency domain bandwidth hopping between frequency domain bandwidth groups; wherein a frequency domain bandwidth group is a frequency domain bandwidth group consisting of one or more frequency domain bandwidths in a frequency domain bandwidth level of the N-1th level corresponding to the reference signal, including a frequency domain bandwidth in a frequency domain bandwidth level of the Nth level.

[0037] Optionally, in the case that the reference signal frequency domain bandwidth is multi-level, the method further includes: receiving a third signaling message, wherein the third signaling message is used to determine whether the reference signal jumps in a frequency domain bandwidth group.

[0038] Optionally, the frequency domain position k(t) occupied by the reference signal is determined by:

[0039]

[0040]

[0041]

[0042]

[0043] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,or ig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level with index b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is the frequency domain bandwidth level set, x b , k b is less than or equal to N b The natural number, β b (l)∈{0,1,...,x b -1}.

[0044] Optionally, the method further includes: acquiring at least one of the following parameters by receiving a fourth signaling message or by means of an agreed rule: β b (l), k b , x b .

[0045] Optionally, the method also includes: receiving physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries time domain offset information of the reference signal; and sending the reference signal according to the time domain offset information of the reference signal.

[0046] According to one embodiment of the present invention, a reference signal receiving method is provided, comprising: determining that a frequency domain position occupied by a reference signal satisfies a predetermined condition, wherein the predetermined condition comprises: there are non-continuous frequency bands at the frequency domain position occupied by the reference signal, and the union of the frequency bands occupied by the reference signal is smaller than a frequency hopping bandwidth; receiving the reference signal at the determined frequency domain position; wherein the frequency hopping bandwidth is a bandwidth determined based on two frequency domain positions farthest apart among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to a frequency hopping configuration range notified in the first signaling message; and wherein one frequency band is a PRB.

[0047] Optionally, in the case that the reference signal frequency domain bandwidth is multi-level, the method further includes: sending a second signaling message, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for the reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for the reference signal hopping in a frequency hopping bandwidth level set; wherein, a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

[0048] Optionally, the method also includes: sending physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries time domain offset information of the reference signal; and receiving the reference signal according to the time domain offset information of the reference signal.

[0049] According to one embodiment of the present invention, a reference signal transmission device is provided, comprising: a determination module, used to determine that the frequency domain position occupied by the reference signal satisfies a predetermined condition, wherein the predetermined condition comprises: there are non-continuous frequency bands at the frequency domain position occupied by the reference signal, and the union of the frequency bands occupied by the reference signal is smaller than the frequency hopping bandwidth; a transmission module, used to transmit the reference signal purely at the determined frequency domain position; wherein the frequency hopping bandwidth is a bandwidth determined according to the two farthest frequency domain positions among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to the frequency hopping configuration range notified in the first signaling message; and one of the frequency bands is a PRB.

[0050] Optionally, the reference signal transmission device also includes: transmitting physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries time domain offset information of the reference signal; and transmitting the reference signal according to the time domain offset information of the reference signal.

[0051] Optionally, the transmitting includes sending or receiving.

[0052] According to an embodiment of the present invention, a terminal is provided, comprising: a processor, the processor being configured to run a program, wherein the program executes any one of the reference signal sending methods described above when the program is run.

[0053] According to an embodiment of the present invention, a base station is provided, comprising: a processor, the processor being configured to run a program, wherein the program executes any one of the reference signal receiving methods described above when the program is run.

[0054] According to an embodiment of the present invention, a storage medium is provided, wherein the storage medium includes a stored program, wherein the program executes any one of the reference signal sending methods described above when running.

[0055] According to an embodiment of the present invention, a processor is provided, wherein the processor is used to run a program, wherein the program executes any one of the reference signal receiving methods described above when running.

[0056] Through the present invention, since the frequency domain position occupied by the determined reference signal meets the predetermined conditions, wherein the predetermined conditions include: the existence of a non-continuous frequency band at the frequency domain position occupied by the reference signal, the reference signal can be transmitted at the determined frequency domain position. Compared with the related art in which the frequency domain positions occupied by the reference signal are continuous, the preferred frequency band can be quickly located to better adapt to the requirements of NR. Therefore, the problem that the SRS pattern in LTE in the related art cannot meet the requirements of NR can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0058] Figure 1 is a schematic diagram of a tree structure of an SRS in the related art;

[0059] Figure 2 is a schematic diagram of a frequency hopping pattern in LTE;

[0060] Figure 3 It is a hardware structure block diagram of a mobile terminal of a reference signal transmission method according to an embodiment of the present invention;

[0061] Figure 4 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 1 ;

[0062] Figure 5 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 2 ;

[0063] Figure 6 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 3 ;

[0064] Figure 7 is a structural frame of a reference signal transmission device according to an embodiment of the present invention Figure 1 ;

[0065] Figure 8The structure frame of the reference signal transmission device provided by the embodiment of the present invention is Figure 2 ;

[0066] Fig. 9 The structure frame of the reference signal transmission device provided by the embodiment of the present invention is Figure 3 ;

[0067] Fig.10a This is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 1 ;

[0068] Fig.10b An example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention Figure 1 ;

[0069] Fig.10c According to the preferred embodiment 1 of the present invention, Fig.10b Schematic diagram of the union of the frequency domain positions occupied by the reference signal frequency hopping in the frequency hopping pattern shown Figure 1 ;

[0070] Fig.11a This is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 2 ;

[0071] Fig.11b This is an example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention. Figure 2 ;

[0072] Fig.11c According to the preferred embodiment 1 of the present invention, Fig.11b Schematic diagram of the union of the frequency domain positions occupied by the reference signal frequency hopping in the frequency hopping pattern shown Figure 1 ;

[0073] Fig.12a This is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 3 ;

[0074] Figure 12b This is an example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention. Figure 3 ;

[0075] Fig.13 It is a schematic diagram of a reference signal occupying non-continuous frequency domain positions on a time domain symbol provided according to a preferred embodiment 2 of the present invention;

[0076] Fig.14This is an example diagram of a frequency hopping pattern in which a reference signal occupies a non-continuous frequency domain position on a time domain symbol provided by preferred embodiment 2 of the present invention;

[0077] Fig.15a It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 1 ;

[0078] Fig.15b It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 2 ;

[0079] Fig.15c It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 3 ;

[0080] Fig.16 It is a schematic diagram of a time domain frequency hopping unit provided by preferred embodiment 3 of the present invention being 2 time domain symbols;

[0081] Fig.17 2 is a schematic diagram of the relationship between the high-level triggered SRS and the dynamically triggered SRS provided in the preferred embodiment 3 of the present invention;

[0082] Fig.18a It is a schematic diagram of a port group jumping while a frequency domain jump is provided in a preferred embodiment 4 of the present invention;

[0083] Fig.18b It is a schematic diagram of first antenna port hopping and then frequency domain hopping according to the preferred embodiment 4 of the present invention;

[0084] Fig.18c It is a schematic diagram of first frequency domain hopping and then port group hopping according to the preferred embodiment 4 of the present invention;

[0085] Fig.19a This is a schematic diagram showing that SRS resources also hop while frequency domain hopping is provided in a preferred embodiment 5 of the present invention;

[0086] Fig.19b This is a schematic diagram of first SRS resource group hopping and then frequency domain hopping according to a preferred embodiment 5 of the present invention;

[0087] Fig.19c It is a schematic diagram of frequency domain hopping followed by port group hopping according to preferred embodiment 5 of the present invention;

[0088] Fig.20a This is a schematic diagram of a preferred frequency band set selected by a base station according to a preferred embodiment 7 of the present invention, wherein the preferred frequency band set includes non-continuous frequency bands;

[0089] Fig.20b It is a schematic diagram of a terminal performing frequency hopping on virtual frequency domain resources according to a preferred embodiment of the present invention;

[0090] Fig.21 is a schematic diagram of frequency domain hopping occurring in a virtual bandwidth provided by preferred embodiment 9 of the present invention;

[0091] Fig.22a Schematic diagram of the relationship between the time domain frequency hopping unit and time according to the preferred embodiment 10 of the present invention Figure 1 ;

[0092] Figure 22b Schematic diagram of the relationship between the time domain frequency hopping unit and time according to the preferred embodiment 10 of the present invention Figure 2 . DETAILED DESCRIPTION

[0093] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0094] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0095] Example 1

[0096] The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 3 1 is a hardware structure block diagram of a mobile terminal of a reference signal transmission method according to an embodiment of the present invention. Figure 3 As shown, the mobile terminal 30 may include one or more (only one is shown in the figure) processors 302 (the processor 302 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 304 for storing data, and a transmission device 306 for communication functions. It can be understood by those skilled in the art that Figure 3 The structure shown is for illustration only and does not limit the structure of the above electronic device. Figure 3 More or fewer components as shown, or with Figure 3 Different configurations are shown.

[0097] The memory 304 can be used to store software programs and modules of application software, such as program instructions / modules corresponding to the reference signal transmission method in the embodiment of the present invention. The processor 302 executes various functional applications and data processing by running the software programs and modules stored in the memory 304, that is, implementing the above method. The memory 304 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 304 may further include a memory remotely arranged relative to the processor 302, and these remote memories may be connected to the mobile terminal 30 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0098] The transmission device 306 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal 30. In one example, the transmission device 306 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 306 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0099] In this embodiment, a reference signal transmission method running on the above mobile terminal is provided. Figure 4 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 1 ,like Figure 4 As shown, the process includes the following steps:

[0100] Step S402, determining whether the frequency domain position occupied by the reference signal meets a predetermined condition, wherein the predetermined condition includes: the frequency domain position occupied by the reference signal has a non-continuous frequency band;

[0101] Step S404: Transmit the reference signal at the determined frequency domain position.

[0102] Through the above steps, since the frequency domain position occupied by the determined reference signal meets the predetermined conditions, wherein the predetermined conditions include: there are non-continuous frequency bands at the frequency domain position occupied by the reference signal, the reference signal can be transmitted at the determined frequency domain position. Compared with the related art in which the frequency domain positions occupied by the reference signal are continuous, the preferred frequency band can be quickly located to better adapt to the requirements of NR. Therefore, the problem that the SRS pattern in LTE in the related art cannot meet the requirements of NR can be solved.

[0103] It should be noted that the existence of non-continuous frequency bands in the frequency domain position occupied by the reference signal may include at least one of the following: on a time domain symbol, there is a non-continuous frequency band in the frequency domain position occupied by the reference signal; in a frequency hopping cycle, there is a non-continuous frequency band in the frequency domain position occupied by the reference signal; there is a non-continuous frequency band in the frequency domain position occupied by the reference signal in a frequency hopping manner.

[0104] It should be noted that the above transmission pattern may include a frequency hopping pattern, but is not limited thereto.

[0105] It should be noted that the above-mentioned frequency hopping cycle satisfies at least one of the following characteristics: in different frequency hopping cycles, there are repeated frequency bands in the frequency domain position occupied by the reference signal; in different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; there is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is the mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping cycle and the time domain parameters, and the second mapping relationship is the mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping cycle and the time domain parameters.

[0106] It should be noted that a frequency band may include at least one of the following: a physical resource block PRB, a frequency domain subband, a bandwidth part, and a frequency domain bandwidth of a component carrier frequency.

[0107] It should be noted that, taking the above-mentioned frequency band including one PRB as an example, it is assumed that there are 4 PRBs, namely PRB1, PRB2, PRB3, and PRB4; if the frequency domain position occupied by the above-mentioned reference signal is PRB1, PRB3, PRB4, or PRB1, PRB3, etc., it is considered that the frequency domain position occupied by the above-mentioned reference signal has a non-continuous frequency band, but it is not limited to this.

[0108] In one embodiment of the present invention, the above-mentioned predetermined conditions may also include at least one of the following: the union of the frequency bands occupied by the reference signal is smaller than the frequency hopping bandwidth; the reference signal frequency hops on the virtual frequency domain resources corresponding to the physical frequency domain resources; the frequency domain positions occupied by the reference signal in a frequency hopping manner are equally spaced on the frequency hopping bandwidth; the frequency domain positions occupied by the reference signal in a frequency hopping manner are randomly distributed on the frequency hopping bandwidth; wherein the frequency hopping bandwidth is a bandwidth determined based on the two farthest frequency domain positions among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message.

[0109] It should be noted that, taking the above-mentioned frequency band including one PRB as an example, it is assumed that there are 4 PRBs, namely PRB1, PRB2, PRB3, and PRB4; assuming that the frequency bands occupied by the reference signal are PRB1 and PRB3, then the union is PRB1 and PRB3; and the frequency hopping bandwidth is the difference between the end frequency domain position of PRB4 and the start frequency domain position of PRB1, but is not limited to this.

[0110] In one embodiment of the present invention, when there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies at least one of the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level. A true subset of a frequency domain bandwidth index set corresponding to a bandwidth level; wherein, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index is an index of multiple frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; a frequency domain bandwidth index set corresponding to a frequency domain bandwidth level includes a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 in a tree structure; wherein N is an integer greater than or equal to 1.

[0111] It should be noted that the frequency domain bandwidth index set corresponding to the above reference signal may also be referred to as the frequency domain bandwidth index occupied by the reference signal, but is not limited thereto.

[0112] It should be noted that the frequency domain bandwidth index occupied by the above-mentioned reference signal may also satisfy at least one of the following: when the frequency domain bandwidth level belongs to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index occupied by the reference signal changes with time; when the frequency domain bandwidth level belongs to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set of the reference signal hopping is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

[0113] It should be noted that the above-mentioned frequency hopping bandwidth level set can satisfy at least one of the following: the levels in the frequency hopping bandwidth level set are non-continuous; the maximum level in the frequency hopping bandwidth level set is less than or equal to the first level, wherein the first level is the maximum frequency domain bandwidth level in the frequency domain bandwidth levels corresponding to the reference signal; the frequency hopping bandwidth level set can be an empty set; on one time domain symbol, the reference signal corresponds to more than two frequency hopping bandwidth level sets; the frequency hopping bandwidth level set information is carried in the received signaling information.

[0114] It should be noted that the frequency domain position occupied by the reference signal varies with time. Therefore, the frequency domain position that varies with time can be expressed as a pattern, but is not limited thereto.

[0115] In one embodiment of the present invention, the frequency domain position k(t) occupied by the reference signal may be determined in the following manner:

[0116]

[0117]

[0118]

[0119] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is a set of frequency domain bandwidth levels.

[0120] It should be noted that, before the above step S402, the above method may further include: obtaining at least one of the following parameters through the second signaling information and / or the agreed table: B, N b , n b,orig , korg , b hopA , b hopA_min , b hopA_max ; Among them, b hopA ={b,b hopA_min ≤b≤b hopA_max}, b hopA_min , b hopA_max Is a non-negative integer or b hopA_min , b hopA_max is a non-negative integer less than B.

[0121] It should be noted that b hopA Satisfy at least one of the following: max(b hopA )≤B; b hopA Includes non-contiguous frequency domain bandwidth level indexes; b hopA It can be an empty set; on a time domain symbol, the reference signal corresponds to more than two b hopA .

[0122] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the above method may further include: receiving a second signaling message, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for reference signal hopping in a frequency hopping bandwidth level set; wherein a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

[0123] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the reference signal may satisfy at least one of the following features: the frequency domain bandwidth level of the reference signal is divided into multiple frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level; on a time domain symbol, the reference signal corresponds to more than two frequency domain bandwidth indexes in a frequency domain bandwidth level; the reference signal corresponds to more than two starting frequency domain bandwidth level information; the reference signal corresponds to more than two ending frequency domain bandwidth level information; the reference signal first performs a frequency domain bandwidth hopping within the frequency domain bandwidth group, and then performs a frequency domain bandwidth hopping between frequency domain bandwidth groups; wherein a frequency domain bandwidth group is a frequency domain bandwidth group consisting of one or more frequency domain bandwidths in multiple frequency domain bandwidths in the Nth level, including a frequency domain bandwidth in the N-1th level corresponding to the reference signal.

[0124] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the above method may further include: receiving a third signaling message, wherein the third signaling message is used to determine whether the reference signal jumps in a frequency domain bandwidth group.

[0125] It should be noted that the above-mentioned receiving the third signaling message may be performed before step S402 or after step S402, but is not limited thereto.

[0126] In one embodiment of the present invention, the frequency domain position k(t) occupied by the reference signal may be determined in the following manner:

[0127]

[0128]

[0129]

[0130]

[0131] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b'is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is the frequency domain bandwidth level set, x b , k b is less than or equal to N b The natural number, β b (l)∈{0,1,...,x b -1}.

[0132] It should be noted that the above method may further include: obtaining at least one of the following parameters by receiving a fourth signaling message or by means of an agreed rule: β b (l), k b , x b .

[0133] It should be noted that the receiving of the fourth signaling message may be performed before the step S402, but is not limited thereto.

[0134] The embodiment of the present invention further provides a reference signal transmission method running on the above mobile terminal, Figure 5 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 2 , the method comprising:

[0135] Step S502, receiving physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries parameter information for determining a frequency hopping pattern of a reference signal;

[0136] Step S504, determining a frequency hopping pattern of a reference signal according to the parameter information;

[0137] Step S506: Transmit a reference signal according to the determined frequency hopping pattern.

[0138] Through the above steps, the frequency hopping pattern of the reference signal can be determined by carrying parameter information for determining the frequency hopping pattern of the reference signal through physical layer dynamic control signaling. Compared with the related art that does not support physical layer dynamic control signaling to carry parameter information for determining the frequency hopping pattern of the reference signal, it is achieved that physical layer dynamic control signaling is supported to carry information related to the frequency hopping pattern, so that it can better adapt to the needs of NR and solve the problem that the SRS pattern in LTE in the related art cannot meet the needs of NR.

[0139] It should be noted that the above-mentioned physical layer dynamic control signaling is included in a physical layer control channel, and / or the information in the above-mentioned physical layer dynamic control signaling can be dynamically changed in each time unit.

[0140] It should be noted that the above physical layer dynamic control signaling carries all or part of the parameter information for determining the frequency hopping pattern of the reference signal.

[0141] In one embodiment of the present invention, the above method may further include: receiving high-layer signaling, wherein the high-layer signaling carries parameter information for determining a frequency hopping pattern of a reference signal, and the union of the parameter information carried in the high-layer signaling and the parameter information carried in the physical layer dynamic control signaling is all the parameter information.

[0142] It should be noted that the parameters carried in the above-mentioned physical layer dynamic control signaling and the parameters carried in the above-mentioned high-level signaling can be the same, partially the same, or completely different, as long as the union of the parameters carried in the above-mentioned physical layer dynamic control signaling and the parameters carried in the above-mentioned high-level signaling can be all the parameters used to determine the frequency hopping pattern of the reference signal.

[0143] It should be noted that the parameter information used to determine the frequency hopping pattern of the reference signal includes at least one of the following: frequency hopping bandwidth level set information, frequency hopping bandwidth starting level information, frequency hopping bandwidth ending level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the number of time domain symbols occupied by the reference signal, reference signal cycle information, reference signal cycle offset information, time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, time domain frequency hopping unit information of the reference signal, the number of ports corresponding to the reference signal, the number of port groups of the reference signal, the reference signal port group hopping pattern information, the reference signal frequency hopping parameter set index information, the hopping of the reference signal resource group the relationship between the change and the frequency domain hopping, the relationship between the hopping of the port group and the frequency domain hopping, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode, the frequency domain bandwidth level grouping information, the information used to indicate whether the frequency domain bandwidth level group is frequency hopping, the frequency domain bandwidth grouping information, the information whether the frequency domain bandwidth group is frequency hopping, and the frequency domain bandwidth group hopping sequence information; wherein, the time domain frequency hopping unit information includes that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit.

[0144] It should be noted that the above-mentioned reference signal may correspond to multiple frequency hopping bandwidth starting level information on one time domain symbol, or the above-mentioned reference signal may correspond to multiple frequency hopping bandwidth ending level information on one time domain symbol, or the above-mentioned reference signal may correspond to multiple frequency domain bandwidth levels where the frequency domain bandwidth occupied by the reference signal on one time domain symbol is located, or the above-mentioned reference signal may correspond to multiple maximum values ​​of the frequency domain bandwidth levels corresponding to the reference signal on one time domain symbol, but it is not limited to this. Therefore, the above-mentioned reference information may include multiple frequency hopping bandwidth starting level information, or multiple frequency hopping bandwidth ending level information, or multiple frequency domain bandwidth levels where the frequency domain bandwidth occupied by the reference signals on one time domain symbol is located, or multiple maximum values ​​of the frequency domain bandwidth levels corresponding to the reference signals, but it is not limited to this.

[0145] It should be noted that the above-mentioned time-domain frequency hopping unit information may also include at least one of the following: information on the number of time-domain symbols, and information on the number of time units occupied by the time-domain symbols.

[0146] In one embodiment of the present invention, the above method may also include at least one of the following: the time domain resources occupied by the reference signal triggered by the physical layer dynamic control signaling are a subset of the time domain resources occupied by the reference signal triggered by the first control signaling; when the reference signal triggered by the physical layer dynamic control signaling and the reference signal triggered by the first control signaling occupy the same time domain symbol, only the reference signal triggered by the physical layer dynamic control signaling is transmitted, and the reference signal triggered by the first control signaling is discarded; there is no discontinuous frequency band in the frequency domain position occupied by the reference signal triggered by the physical layer dynamic control signaling, and there is a discontinuous frequency band in the frequency domain position occupied by the reference signal triggered by the first control signaling; The frequency hopping bandwidth level set corresponding to the reference signal triggered by the physical layer dynamic control signaling belongs to the first set, and the frequency hopping bandwidth level set corresponding to the reference signal triggered by the first control signaling belongs to the second set; the transmission parameters of the reference signal triggered by the physical layer dynamic control signaling are determined according to the transmission parameters and time parameters of the reference signal triggered by the first control signaling; the transmission parameter configuration range of the reference signal triggered by the physical layer dynamic control signaling is determined according to the transmission parameter configuration information of the reference signal triggered by the first control signaling; wherein the first control signaling includes at least one of the following: high-level control signaling, control signaling that is closest to the transmission time of the physical layer dynamic control signaling.

[0147] It should be noted that all or part of the parameters in the parameter information carried in the higher layer signaling may be applicable to both the reference signal triggered by the physical layer dynamic control signaling and the reference signal triggered by the higher layer signaling.

[0148] It should be noted that, based on the transmission parameters and time parameters of the reference signal triggered by high-level signaling, the transmission pattern of the reference signal triggered by the physical layer dynamic control signaling can be expressed as: the transmission parameters of the reference signal triggered by the physical layer dynamic control signaling, the transmission parameters and time parameters of the reference signal triggered by the high-level signaling determine the transmission pattern of the reference signal triggered by the physical layer dynamic control signaling; but it is not limited to this.

[0149] The embodiment of the present invention further provides a reference signal transmission method running in the above mobile terminal or base station, Figure 6 The reference signal transmission method according to an embodiment of the present invention is as follows: Figure 3 , the method comprising:

[0150] Step S602, determining transmission parameter information of a reference signal;

[0151] Step S604, transmitting a reference signal according to the determined transmission parameter information; wherein the transmission parameter information includes at least one of the following parameters: frequency domain position information occupied by the reference signal, antenna port grouping information corresponding to the reference signal, and pattern information of the reference signal in the frequency domain position.

[0152] Through the above steps, the above transmission parameter information of the above reference signal can be obtained, so that it can better adapt to the requirements of NR, thereby solving the problem that the SRS pattern in LTE in the related technology cannot meet the requirements of NR.

[0153] It should be noted that the transmission parameter information includes at least one of the following information: time domain frequency hopping unit information, port grouping information, frequency domain repetition factor information corresponding to the frequency domain position, reference signal resource group grouping information, the relationship between the hopping of the reference signal resource group and the frequency domain hopping, the relationship between the hopping of the port group of the reference signal and the frequency domain hopping; frequency hopping bandwidth level set information, frequency hopping bandwidth end level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, reference The reference signal port group hopping pattern information, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode, the frequency domain bandwidth level grouping information, the information used to indicate whether the frequency domain bandwidth level group is frequency hopping, the frequency domain bandwidth grouping information, the information whether the frequency domain bandwidth group is frequency hopping, and the frequency domain bandwidth group hopping order information; wherein, one of the reference signal resource groups includes one or more reference signal ports.

[0154] It should be noted that the port groups of different reference signals send reference signals at different times.

[0155] It should be noted that the time domain frequency hopping unit information may include that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit; different frequency domain bandwidth positions correspond to different repetition factors.

[0156] It should be noted that there is a corresponding relationship between the time domain frequency hopping unit corresponding to the time domain frequency hopping unit information and the number of time domain symbols occupied by the reference signal in one time unit; when the grouping information of the port group can include the number of port groups, there is a corresponding relationship between the time domain frequency hopping unit and the number of port groups; when the grouping information of the port group can include the number of port groups, there is a corresponding relationship between the number of port groups and the number of time domain symbols occupied by the reference signal in one time unit.

[0157] It should be noted that, in a frequency hopping cycle, the time-domain frequency hopping unit information of the reference signal at different times is different.

[0158] In one embodiment of the present invention, the above transmission parameter information may further include: a correspondence between a time-domain frequency hopping unit and time.

[0159] It should be noted that the relationship between the reference signal resource group hopping and the frequency domain hopping may include one of the following: the reference signal resource group hopping is earlier than the frequency domain hopping, the reference signal resource group hopping and the frequency domain hopping are performed simultaneously, and the frequency domain hopping is earlier than the reference signal resource group hopping.

[0160] It should be noted that the relationship between the port group hopping and the frequency domain hopping includes one of the following: the port group hopping is earlier than the frequency domain hopping. The frequency domain hopping is earlier than the port group hopping. The port group hopping and the frequency domain hopping are performed simultaneously.

[0161] It should be noted that the transmission parameter information may be included in at least one of the following control signalings: physical layer dynamic control signaling, and high-layer control signaling.

[0162] It should be noted that the above-mentioned high-level control signaling may be RRC control signaling or MAC CE control signaling, but is not limited thereto.

[0163] It should be noted that the above Figure 4 and Figure 5 The execution subject of the steps of the method described above may be a terminal, such as a mobile terminal, but is not limited thereto. Figure 6 The execution subject of the steps of the method may be a base station or a terminal, but is not limited thereto.

[0164] It should be noted that the above Figure 4 The embodiment shown, Figure 5 The embodiments shown and Figure 6 The illustrated embodiments can be combined with each other and are not limited thereto.

[0165] An embodiment of the present invention further provides a parameter sending method applied to a base station, the method comprising: sending physical layer dynamic control signaling, wherein the physical layer dynamic control signaling carries parameter information for determining a frequency hopping pattern of a reference signal.

[0166] It should be noted that the physical layer dynamic control signaling carries all or part of the parameter information for determining the frequency hopping pattern of the reference signal.

[0167] In one embodiment of the present invention, the above method may further include: sending high-layer signaling, wherein the high-layer signaling carries parameter information for determining the frequency hopping pattern of the reference signal, and the union of the parameter information carried in the high-layer signaling and the parameter information carried in the physical layer dynamic control signaling is all the parameter information.

[0168] It should be noted that sending physical layer dynamic control signaling and sending high-level signaling can be performed simultaneously, or the physical layer dynamic control signaling can be sent first and then the high-level signaling, or the high-level signaling can be sent first and then the physical layer dynamic control signaling, but it is not limited to this.

[0169] It should be noted that the parameter information used to determine the frequency hopping pattern of the reference signal may include at least one of the following: frequency hopping bandwidth level set information, frequency hopping bandwidth starting level information, frequency hopping bandwidth ending level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the number of time domain symbols occupied by the reference signal, reference signal cycle information, reference signal cycle offset information, time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, time domain frequency hopping unit information of the reference signal, the number of ports corresponding to the reference signal, the number of port groups of the reference signal, the reference signal port group hopping pattern information, the reference signal frequency hopping parameter set index information, the reference signal resource The relationship between the source group's hopping and the frequency domain hopping, the relationship between the port group's hopping and the frequency domain hopping, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode; frequency domain bandwidth level grouping information, whether the frequency domain bandwidth level group hops, frequency domain bandwidth grouping information, whether the frequency domain bandwidth group hops, and frequency domain bandwidth group hopping sequence information; wherein, the time domain frequency hopping unit information includes that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit.

[0170] It should be noted that the execution subject of this embodiment may be a base station, but is not limited thereto.

[0171] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0172] Example 2

[0173] In this embodiment, a reference signal transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0174] Figure 7 is a structural frame of a reference signal transmission device according to an embodiment of the present invention Figure 1 ,like Figure 7 As shown, the device comprises:

[0175] The determination module 72 is used to determine whether the frequency domain position occupied by the reference signal meets a predetermined condition, wherein the predetermined condition includes: the frequency domain position occupied by the reference signal has a non-continuous frequency band;

[0176] The transmission module 74 is connected to the determination module 72 and is used to transmit the reference signal at the determined frequency domain position.

[0177] Through the above-mentioned device, since the frequency domain position occupied by the determined reference signal meets the predetermined conditions, wherein the predetermined conditions include: there are non-continuous frequency bands at the frequency domain position occupied by the reference signal, the reference signal can be transmitted at the determined frequency domain position. Compared with the related art in which the frequency domain positions occupied by the reference signal are continuous, the preferred frequency band can be quickly located to better adapt to the requirements of NR. Therefore, the problem that the SRS pattern in LTE in the related art cannot meet the requirements of NR can be solved.

[0178] It should be noted that the existence of non-continuous frequency bands in the frequency domain position occupied by the reference signal may include at least one of the following: on a time domain symbol, there is a non-continuous frequency band in the frequency domain position occupied by the reference signal; in a frequency hopping cycle, there is a non-continuous frequency band in the frequency domain position occupied by the reference signal; there is a non-continuous frequency band in the frequency domain position occupied by the reference signal in a frequency hopping manner.

[0179] It should be noted that the above transmission pattern may include a frequency hopping pattern, but is not limited thereto.

[0180] It should be noted that the above-mentioned frequency hopping cycle satisfies at least one of the following characteristics: in different frequency hopping cycles, there are repeated frequency bands in the frequency domain position occupied by the reference signal; in different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; there is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is the mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping cycle and the time domain parameters, and the second mapping relationship is the mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping cycle and the time domain parameters.

[0181] It should be noted that a frequency band may include at least one of the following: a physical resource block PRB, a frequency domain subband, a bandwidth part, and a frequency domain bandwidth of a component carrier frequency.

[0182] It should be noted that, taking the above-mentioned frequency band including one PRB as an example, it is assumed that there are 4 PRBs, namely PRB1, PRB2, PRB3, and PRB4; if the frequency domain position occupied by the above-mentioned reference signal is PRB1, PRB3, PRB4, or PRB1, PRB3, etc., it is considered that the frequency domain position occupied by the above-mentioned reference signal has a non-continuous frequency band, but it is not limited to this.

[0183] In one embodiment of the present invention, the above-mentioned predetermined conditions may also include at least one of the following: the union of the frequency bands occupied by the reference signal is smaller than the frequency hopping bandwidth; the reference signal frequency hops on the virtual frequency domain resources corresponding to the physical frequency domain resources; the frequency domain positions occupied by the reference signal in a frequency hopping manner are equally spaced on the frequency hopping bandwidth; the frequency domain positions occupied by the reference signal in a frequency hopping manner are randomly distributed on the frequency hopping bandwidth; wherein the frequency hopping bandwidth is a bandwidth determined based on the two farthest frequency domain positions among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message.

[0184] It should be noted that, taking the above-mentioned frequency band including one PRB as an example, it is assumed that there are 4 PRBs, namely PRB1, PRB2, PRB3, and PRB4; assuming that the frequency bands occupied by the reference signal are PRB1 and PRB3, then the union is PRB1 and PRB3; and the frequency hopping bandwidth is the difference between the end frequency domain position of PRB4 and the start frequency domain position of PRB1, but is not limited to this.

[0185] In one embodiment of the present invention, when there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies at least one of the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level. A true subset of a frequency domain bandwidth index set corresponding to a bandwidth level; wherein, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index is an index of multiple frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; a frequency domain bandwidth index set corresponding to a frequency domain bandwidth level includes a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 in a tree structure; wherein N is an integer greater than or equal to 1.

[0186] It should be noted that the frequency domain bandwidth index set corresponding to the above reference signal may also be referred to as the frequency domain bandwidth index occupied by the reference signal, but is not limited thereto.

[0187] It should be noted that the frequency domain bandwidth index occupied by the above-mentioned reference signal may also satisfy at least one of the following: when the frequency domain bandwidth level belongs to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index occupied by the reference signal changes with time; when the frequency domain bandwidth level belongs to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set of the reference signal hopping is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

[0188] It should be noted that the above-mentioned frequency hopping bandwidth level set can satisfy at least one of the following: the levels in the frequency hopping bandwidth level set are non-continuous; the maximum level in the frequency hopping bandwidth level set is less than or equal to the first level, wherein the first level is the maximum frequency domain bandwidth level in the frequency domain bandwidth levels corresponding to the reference signal; the frequency hopping bandwidth level set can be an empty set; on one time domain symbol, the reference signal corresponds to more than two frequency hopping bandwidth level sets; the frequency hopping bandwidth level set information is carried in the received signaling information.

[0189] In one embodiment of the present invention, the determination module 72 may determine the frequency domain position k(t) occupied by the reference signal in the following manner:

[0190]

[0191]

[0192]

[0193] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is a set of frequency domain bandwidth levels.

[0194] It should be noted that the above device may further include: an acquisition module connected to the above determination module 72, used to acquire at least one of the following parameters through the second signaling information and / or the agreed table: B, N b , n b,orig , k org , b hopA , b hopA_min , b hopA_max; Among them, b hopA ={b,b hopA_min ≤b≤b hopA_max}, b hopA_min , b hopA_max Is a non-negative integer or b hopA_min , b hopA_max is a non-negative integer less than B.

[0195] It should be noted that b hopA Satisfy at least one of the following: max(b hopA )≤B; b hopA Includes non-contiguous frequency domain bandwidth level indexes; b hopA It can be an empty set; on a time domain symbol, the reference signal corresponds to more than two b hopA .

[0196] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the above-mentioned device may further include: a receiving module, used to receive a second signaling message, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for reference signal hopping in a frequency hopping bandwidth level set; wherein a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level.

[0197] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the reference signal may satisfy at least one of the following features: the frequency domain bandwidth level of the reference signal is divided into multiple frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level; on a time domain symbol, the reference signal corresponds to more than two frequency domain bandwidth indexes in a frequency domain bandwidth level; the reference signal corresponds to more than two starting frequency domain bandwidth level information; the reference signal corresponds to more than two ending frequency domain bandwidth level information; the reference signal first performs a frequency domain bandwidth hopping within the frequency domain bandwidth group, and then performs a frequency domain bandwidth hopping between frequency domain bandwidth groups; wherein a frequency domain bandwidth group is a frequency domain bandwidth group consisting of one or more frequency domain bandwidths in multiple frequency domain bandwidths in the Nth level, including a frequency domain bandwidth in the N-1th level corresponding to the reference signal.

[0198] In one embodiment of the present invention, when the reference signal frequency domain bandwidth is multi-level, the above-mentioned receiving module is further used to receive a third signaling message, wherein the third signaling message is used to determine whether the reference signal jumps in a frequency domain bandwidth group.

[0199] In one embodiment of the present invention, the determination module 72 may also determine the frequency domain position k(t) occupied by the reference signal in the following manner:

[0200]

[0201]

[0202]

[0203]

[0204] Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b' = 0, 1, ..., B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is the frequency domain bandwidth level set, x b , k b is less than or equal to N b The natural number, β b (l)∈{0,1,...,x b -1}.

[0205] It should be noted that the above device further includes: an acquisition module configured to acquire at least one of the following parameters by receiving a fourth signaling message or by means of an agreed rule: β b (l), k b , x b .

[0206] It should be noted that the above device may be located in a terminal, but is not limited thereto.

[0207] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0208] Example 3

[0209] In this embodiment, a reference signal transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0210] Figure 8 The structure frame of the reference signal transmission device provided by the embodiment of the present invention is Figure 2 ,like Figure 8 As shown, the device comprises:

[0211] The receiving module 82 is used to receive physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries parameter information for determining a frequency hopping pattern of a reference signal;

[0212] A determination module 84, connected to the receiving module 82, for determining a frequency hopping pattern of the reference signal according to the parameter information;

[0213] The transmission module 86 is connected to the determination module 84 and is used to transmit the reference signal according to the determined frequency hopping pattern.

[0214] Through the above-mentioned device, the frequency hopping pattern of the reference signal can be determined by carrying parameter information for determining the frequency hopping pattern of the reference signal through physical layer dynamic control signaling. Compared with the related art that does not support physical layer dynamic control signaling to carry parameter information for determining the frequency hopping pattern of the reference signal, it is achieved that supports physical layer dynamic control signaling to carry information related to the frequency hopping pattern, so that it can better adapt to the needs of NR and solve the problem that the SRS pattern in LTE in the related art cannot meet the needs of NR.

[0215] It should be noted that the above-mentioned physical layer dynamic control signaling is included in a physical layer control channel, and / or the information in the above-mentioned physical layer dynamic control signaling can be dynamically changed in each time unit.

[0216] It should be noted that the above physical layer dynamic control signaling carries all or part of the parameter information for determining the frequency hopping pattern of the reference signal.

[0217] In one embodiment of the present invention, the above-mentioned receiving module 82 can also be used to receive high-level signaling, wherein the high-level signaling carries parameter information for determining the frequency hopping pattern of the reference signal, and the union of the parameter information carried in the high-level signaling and the parameter information carried in the physical layer dynamic control signaling is all the parameter information.

[0218] It should be noted that the parameters carried in the above-mentioned physical layer dynamic control signaling and the parameters carried in the above-mentioned high-level signaling can be the same, partially the same, or completely different, as long as the union of the parameters carried in the above-mentioned physical layer dynamic control signaling and the parameters carried in the above-mentioned high-level signaling can be all the parameters used to determine the frequency hopping pattern of the reference signal.

[0219] It should be noted that the parameter information used to determine the frequency hopping pattern of the reference signal includes at least one of the following: frequency hopping bandwidth level set information, frequency hopping bandwidth starting level information, frequency hopping bandwidth ending level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the number of time domain symbols occupied by the reference signal, reference signal cycle information, reference signal cycle offset information, time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, time domain frequency hopping unit information of the reference signal, the number of ports corresponding to the reference signal, the number of port groups of the reference signal, the reference signal port group hopping pattern information, the reference signal frequency hopping parameter set index information, the hopping of the reference signal resource group the relationship between the change and the frequency domain hopping, the relationship between the hopping of the port group and the frequency domain hopping, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode, the frequency domain bandwidth level grouping information, the information used to indicate whether the frequency domain bandwidth level group is frequency hopping, the frequency domain bandwidth grouping information, the information whether the frequency domain bandwidth group is frequency hopping, and the frequency domain bandwidth group hopping sequence information; wherein, the time domain frequency hopping unit information includes that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit.

[0220] It should be noted that the above-mentioned reference signal may correspond to multiple frequency hopping bandwidth starting level information on one time domain symbol, or the above-mentioned reference signal may correspond to multiple frequency hopping bandwidth ending level information on one time domain symbol, or the above-mentioned reference signal may correspond to multiple frequency domain bandwidth levels where the frequency domain bandwidth occupied by the reference signal on one time domain symbol is located, or the above-mentioned reference signal may correspond to multiple maximum values ​​of the frequency domain bandwidth levels corresponding to the reference signal on one time domain symbol, but it is not limited to this. Therefore, the above-mentioned reference information may include multiple frequency hopping bandwidth starting level information, or multiple frequency hopping bandwidth ending level information, or multiple frequency domain bandwidth levels where the frequency domain bandwidth occupied by the reference signals on one time domain symbol is located, or multiple maximum values ​​of the frequency domain bandwidth levels corresponding to the reference signals, but it is not limited to this.

[0221] It should be noted that the above-mentioned time-domain frequency hopping unit information may also include at least one of the following: information on the number of time-domain symbols, and information on the number of time units occupied by the time-domain symbols.

[0222] In one embodiment of the present invention, the time domain resources occupied by the reference signal triggered by the physical layer dynamic control signaling are a subset of the time domain resources occupied by the reference signal triggered by the first control signaling; when the reference signal triggered by the physical layer dynamic control signaling and the reference signal triggered by the first control signaling occupy the same time domain symbol, only the reference signal triggered by the physical layer dynamic control signaling is transmitted, and the reference signal triggered by the first control signaling is discarded; the frequency domain position occupied by the reference signal triggered by the physical layer dynamic control signaling does not have a non-continuous frequency band, and the frequency domain position occupied by the reference signal triggered by the first control signaling does have a non-continuous frequency band; The frequency hopping bandwidth level set corresponding to the reference signal triggered by the physical layer dynamic control signaling belongs to the first set, and the frequency hopping bandwidth level set corresponding to the reference signal triggered by the first control signaling belongs to the second set; the transmission parameters of the reference signal triggered by the physical layer dynamic control signaling can be determined according to the transmission parameters and time parameters of the reference signal triggered by the first control signaling; the transmission parameter configuration range of the reference signal triggered by the physical layer dynamic control signaling is determined according to the transmission parameter configuration information of the reference signal triggered by the first control signaling; wherein, the first control signaling includes at least one of the following: high-level control signaling, control signaling that is closest to the transmission time of the physical layer dynamic control signaling.

[0223] It should be noted that all or part of the parameters in the parameter information carried in the higher layer signaling may be applicable to both the reference signal triggered by the physical layer dynamic control signaling and the reference signal triggered by the higher layer signaling.

[0224] It should be noted that, based on the transmission parameters and time parameters of the reference signal triggered by high-level signaling, the transmission pattern of the reference signal triggered by the physical layer dynamic control signaling can be expressed as: the transmission parameters of the reference signal triggered by the physical layer dynamic control signaling, the transmission parameters and time parameters of the reference signal triggered by the high-level signaling determine the transmission pattern of the reference signal triggered by the physical layer dynamic control signaling; but it is not limited to this.

[0225] It should be noted that the execution subject of the above steps may be a terminal, but is not limited to this.

[0226] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0227] Example 3

[0228] In this embodiment, a reference signal transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0229] Fig. 9 The structure frame of the reference signal transmission device provided by the embodiment of the present invention is Figure 3 ,like Fig. 9 As shown, the device comprises:

[0230] A determination module 92, configured to determine transmission parameter information of a reference signal;

[0231] The transmission module 94 is connected to the above-mentioned determination module 92, and is used to transmit the reference signal according to the determined transmission parameter information; wherein the transmission parameter information includes at least one of the following parameters: the frequency domain position information occupied by the reference signal, the antenna port grouping information corresponding to the reference signal, and the pattern information of the reference signal in the frequency domain position.

[0232] Through the above-mentioned device, the above-mentioned transmission parameter information of the above-mentioned reference signal can be obtained, so that it can better adapt to the requirements of NR, thereby solving the problem that the SRS pattern in LTE in the related technology cannot meet the requirements of NR.

[0233] It should be noted that the transmission parameter information includes at least one of the following information: time domain frequency hopping unit information, port grouping information, frequency domain repetition factor information corresponding to the frequency domain position, reference signal resource group grouping information, the relationship between the hopping of the reference signal resource group and the frequency domain hopping, the relationship between the hopping of the port group of the reference signal and the frequency domain hopping; frequency hopping bandwidth level set information, frequency hopping bandwidth end level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, reference The reference signal port group hopping pattern information, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode, the frequency domain bandwidth level grouping information, the information used to indicate whether the frequency domain bandwidth level group is frequency hopping, the frequency domain bandwidth grouping information, the information whether the frequency domain bandwidth group is frequency hopping, and the frequency domain bandwidth group hopping order information; wherein, one of the reference signal resource groups includes one or more reference signal ports.

[0234] It should be noted that the port groups of different reference signals send reference signals at different times.

[0235] It should be noted that the time domain frequency hopping unit information may include that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit; different frequency domain bandwidth positions correspond to different repetition factors.

[0236] It should be noted that there is a corresponding relationship between the time domain frequency hopping unit corresponding to the time domain frequency hopping unit information and the number of time domain symbols occupied by the reference signal in one time unit; when the grouping information of the port group can include the number of port groups, there is a corresponding relationship between the time domain frequency hopping unit and the number of port groups; when the grouping information of the port group can include the number of port groups, there is a corresponding relationship between the number of port groups and the number of time domain symbols occupied by the reference signal in one time unit.

[0237] It should be noted that, in a frequency hopping cycle, the time-domain frequency hopping unit information of the reference signal at different times is different.

[0238] In one embodiment of the present invention, the above transmission parameter information may further include: a correspondence between a time-domain frequency hopping unit and time.

[0239] It should be noted that the relationship between the reference signal resource group hopping and the frequency domain hopping may include one of the following: the reference signal resource group hopping is earlier than the frequency domain hopping, the reference signal resource group hopping and the frequency domain hopping are performed simultaneously, and the frequency domain hopping is earlier than the reference signal resource group hopping.

[0240] It should be noted that the relationship between the port group hopping and the frequency domain hopping includes one of the following: the port group hopping is earlier than the frequency domain hopping. The frequency domain hopping is earlier than the port group hopping. The port group hopping and the frequency domain hopping are performed simultaneously.

[0241] It should be noted that the transmission parameter information may be included in at least one of the following control signalings: physical layer dynamic control signaling, and high-layer control signaling.

[0242] It should be noted that the above-mentioned high-level control signaling may be RRC control signaling or MAC CE control signaling, but is not limited thereto.

[0243] It should be noted that the above-mentioned device may be located in a terminal or in a base station, and is not limited thereto.

[0244] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0245] Example 4

[0246] In this embodiment, a parameter sending device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0247] The parameter sending device provided by the embodiment of the present invention includes: a sending module, which is used to send physical layer dynamic control signaling, wherein the physical layer dynamic control signaling carries parameter information for determining a frequency hopping pattern of a reference signal.

[0248] It should be noted that the physical layer dynamic control signaling carries all or part of the parameter information for determining the frequency hopping pattern of the reference signal.

[0249] In one embodiment of the present invention, the above-mentioned sending module is also used to send high-layer signaling, wherein the high-layer signaling carries parameter information for determining the frequency hopping pattern of the reference signal, and the union of the parameter information carried in the high-layer signaling and the parameter information carried in the physical layer dynamic control signaling is all the parameter information.

[0250] It should be noted that sending physical layer dynamic control signaling and sending high-level signaling can be performed simultaneously, or the physical layer dynamic control signaling can be sent first and then the high-level signaling, or the high-level signaling can be sent first and then the physical layer dynamic control signaling, but it is not limited to this.

[0251] It should be noted that the parameter information used to determine the frequency hopping pattern of the reference signal may include at least one of the following: frequency hopping bandwidth level set information, frequency hopping bandwidth starting level information, frequency hopping bandwidth ending level information, the frequency domain bandwidth level where the frequency domain bandwidth occupied by the reference signal on a time domain symbol is located, the maximum value of the frequency domain bandwidth level corresponding to the reference signal, frequency hopping cycle number information, the number of time domain symbols occupied by the reference signal, reference signal cycle information, reference signal cycle offset information, time domain symbol index information occupied by the reference signal in a time unit, the number of time domain symbols occupied by the reference signal in a time unit, time domain frequency hopping unit information of the reference signal, the number of ports corresponding to the reference signal, the number of port groups of the reference signal, the reference signal port group hopping pattern information, the reference signal frequency hopping parameter set index information, the reference signal resource The relationship between the source group's hopping and the frequency domain hopping, the relationship between the port group's hopping and the frequency domain hopping, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level, the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode; frequency domain bandwidth level grouping information, whether the frequency domain bandwidth level group hops, frequency domain bandwidth grouping information, whether the frequency domain bandwidth group hops, and frequency domain bandwidth group hopping sequence information; wherein, the time domain frequency hopping unit information includes that the reference signal performs frequency hopping every other time domain frequency hopping unit and the frequency domain position of the reference signal remains unchanged within a time domain frequency hopping unit.

[0252] It should be noted that the above-mentioned device may be located in a base station, but is not limited thereto.

[0253] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0254] Example 5

[0255] An embodiment of the present invention provides a terminal, which includes: a processor, which is used to run a program, wherein when the program is run, the program executes the above-mentioned embodiment 1. Figure 4 or Figure 5 or Figure 6 The method described in the embodiment shown.

[0256] The embodiment of the present invention further provides a base station, the base station comprising: a processor, the processor is used to run a program, wherein when the program is run, the program executes the method in embodiment 1. Figure 6 The method of the embodiment shown or the parameter sending method in embodiment 1.

[0257] Example 6

[0258] An embodiment of the present invention further provides a storage medium, which includes a stored program, wherein when the program is run, any of the above methods is executed.

[0259] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0260] An embodiment of the present invention further provides a processor, which is used to run a program, wherein the program executes the steps in any of the above methods when running.

[0261] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0262] In order to better understand the embodiments of the present invention, the present invention is further explained below in conjunction with preferred embodiments.

[0263] LTE supports periodic and non-periodic SRS triggering modes, and the periodic and non-periodic SRS parameters are configured independently. Non-periodic SRS does not support frequency hopping mode. In NR, since one SRS resource in one slot can occupy multiple time domain symbols, in order to quickly locate the preferred frequency band, it can be considered that non-periodic triggered SRS also supports frequency hopping mode. It is necessary to further consider the configurable parameters of non-periodic triggered SRS to support frequency hopping patterns. And the connection between periodic frequency hopping and non-periodic frequency hopping.

[0264] In LTE, the system bandwidth occupied by SRS and the tree structure of SRS are notified through system messages. The subframe position occupied by SRS is sent through system messages and is Cell-Specific. Cell-Specific SRS parameters are configured for rate matching of PUCCH / PUSCH, but this also causes a certain amount of resource waste because the SRS resources configured in Cell-Specific may not be occupied by any terminal. Further considering that the time domain start position and time domain end position of PUSCH may be dynamically notified in NR, how to rate match PUCCH / PUSCH with SRS is also an issue that needs further consideration.

[0265] SRS in NR also needs to support beam scanning. How to design the SRS pattern to adapt to beam scanning is also a problem to be considered in this article.

[0266] In short, the SRS transmission mode in LTE cannot adapt well to the many requirements of NR. It is necessary to further consider the relevant improvement mode of SRS so that it can adapt to the many requirements of NR.

[0267] Through the preferred embodiments provided by the present invention, the reference signal can adapt to many new requirements of NR. For example, when the bandwidth corresponding to the base station is much larger than the bandwidth supported by the terminal, the preferred bandwidth of the terminal can be quickly locked, and a more refined channel detection process can be performed in real time in the preferred bandwidth, so that the beam training process is combined in the frequency hopping scheme of the reference signal, and the hopping scheme of the port group is considered in the frequency hopping scheme of the reference signal.

[0268] Preferred embodiment 1

[0269] In the related LTE technology, in order to support edge users or power-limited users or increase the capacity of SRS, the uplink reference signal SRS supports frequency hopping rules, but the union of the frequency domains occupied by the SRS frequency hopping is continuous, and there is no discontinuous frequency band. That is, SRS needs to send reference signals on all frequency bands within the frequency hopping bandwidth.

[0270] Specifically, Figure 1 In the tree structure of SRS shown in the figure, b is the frequency domain bandwidth level index, N b That is, the number of frequency domain bandwidths corresponding to the bandwidth level indexed as b, or N b It can also be referred to as the number of leaves of level b included in a leaf of level with bandwidth level max(b-1,0), wherein the tree structure is a type of the multi-level frequency domain bandwidth structure. Of course, the present application does not exclude other multi-level frequency domain bandwidth structures.

[0271] When configuring b hop =0,B SRS =3, the terminal is based on Figure 2 The frequency hopping pattern shown is used to send SRS. Figure 2 The figure is an example of the frequency domain position occupied by SRS in a frequency hopping cycle. The pattern of the frequency domain position occupied by SRS in different frequency hopping cycles relative to time is repeated. Or the union of the frequency domain positions occupied by SRS in different frequency hopping cycles is the same. In this case, in one frequency hopping cycle, the union of the frequency domain positions occupied by SRS occupies the full frequency hopping bandwidth, that is, Figure 1 The frequency domain bandwidth of b=0 shown in is the frequency hopping bandwidth, such as Figure 2 The frequency domain position occupied by the reference signal in a frequency hopping cycle shown in the square grid occupies the full frequency hopping bandwidth. At this time, to complete the full frequency domain detection, and the terminal can only send the frequency domain bandwidth corresponding to one leaf in b=3 at each moment, 8 time domain symbols are required. When the SRS occupies only one time domain symbol in a time unit (such as a subframe or slot), 8 SRS cycles are required to complete a detection. For the large bandwidth in NR, such a frequency hopping method is intolerable, and considering that the frequency selection characteristics are further reduced based on beam transmission in NR, the preferred frequency band can be obtained without full-bandwidth frequency hopping. It is necessary to consider adapting to the frequency hopping mode in NR. On the other hand, considering that the maximum bandwidth supported by the base station in NR is much larger than the supported bandwidth of the terminal, how to quickly find the preferred bandwidth of the terminal in the large bandwidth supported by the base station is also one of the requirements for accelerating the frequency hopping speed.

[0272] To this end, the reference signal may be notified of the frequency hopping bandwidth level set information in the tree structure; in the bandwidth level that does not belong to the frequency hopping bandwidth level set, the frequency domain bandwidth index information corresponding to the reference signal does not change with time (the frequency domain bandwidth index corresponding to the reference signal may also be referred to as the frequency domain bandwidth index occupied by the reference signal); in the bandwidth level that belongs to the frequency hopping bandwidth level set, the frequency domain bandwidth index of the reference signal changes with time.

[0273] Specifically, taking SRS as an example, SRS adopts a tree structure, notifying b hopA (i.e., the frequency hopping bandwidth level set), such as b hopA ={1,2}, such as Fig.10a As shown, Fig.10a This is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 1 , Fig.10a N_b in the above embodiment is similar to Nb. In the tree structure of SRS, in b∈b hopA= {1,2} level, the bandwidth index corresponding to the SRS traverses all bandwidth indexes of the bandwidth level (all bandwidth indexes corresponding to one bandwidth level are index information of multiple bandwidths of the current level corresponding to a bandwidth of the previous level of the bandwidth level), that is, n1(t)∈{0,1,...N1-1}={0,1}, n2(t)∈{0,1,...N2-1}={0,1}, when Its frequency hopping bandwidth index remains unchanged, such as Fig.10a As shown, n1(t) = 0, n3(t) = 1. Fig.10a Although n1(t)∈{0,1,...N1-1}={0,1},n2(t)∈{0,1,...N2-1}={0,1}, the bandwidth index corresponding to the SRS at the {1,2} bandwidth level traverses all bandwidth indexes of the frequency hopping bandwidth level, but each transmission only sends an SRS with a bandwidth length of b=3, that is, the union of the frequency domain positions occupied by the reference signal frequency hopping (or the frequency domain position occupied by the SRS in a frequency hopping cycle) as shown in Fig.10c The oblique line shaded area shows that, Fig.10c According to the preferred embodiment 1 of the present invention, Fig.10b Schematic diagram of the union of the frequency domain positions occupied by the reference signal frequency hopping in the frequency hopping pattern shown Figure 1 ,in, Fig.10b An example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention Figure 1 .

[0274] Further, the frequency hopping pattern of the SRS on port p is determined by the following formula:

[0275]

[0276]

[0277]

[0278] Where t is a time parameter (such as the t-th SRS transmission), b is the bandwidth level index, b=0, 1, ..., B, where B is a non-negative integer, which is the bandwidth level information in the tree structure corresponding to the maximum continuous frequency domain bandwidth occupied by the reference signal on a time domain symbol, or the maximum bandwidth level in the frequency domain bandwidth level corresponding to the reference signal (in this embodiment, bandwidth level 0 represents the minimum / highest bandwidth level, that is, a bandwidth length in bandwidth level 0 is the largest among all bandwidths. Of course, this embodiment does not exclude that bandwidth level 0 represents the maximum / lowest bandwidth level, then B is the minimum bandwidth level in the bandwidth level corresponding to the reference signal). N bis the number of leaves in bandwidth level indexed as b that a leaf in bandwidth level indexed as min(b+1,0) includes (or N b is the number of bandwidths in the bandwidth level with index b that a bandwidth in the bandwidth level with index min(b+1,0) includes), n b,orig is the starting index of the reference signal in the bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the bandwidth level with index b at time t, is a non-negative integer, It is the frequency domain length information occupied by a leaf (or a bandwidth) in the bandwidth level with index b, for example The unit is subcarrier, of course, this embodiment does not exclude The unit is other cases, such as a physical PRB. The frequency domain bandwidth index is the index information of multiple leaves at the same level included in a leaf at the previous level in the tree structure, and the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level includes the set of index information of all leaves at the same level included in a leaf at the previous level in the tree structure.

[0279] Furthermore, the above parameters t, B, n b,orig , One or more of the above parameters may be obtained through notification from the base station and / or by searching a predetermined table, or based on the following formula:

[0280]

[0281]

[0282]

[0283]

[0284]

[0285] B=B SRS

[0286] where n f is the frame index, n s is the subframe index, T SRS is the period of SRS (in subframes), of course n f It can also be the first time unit index, n s is the second time unit index, where the first time unit includes one or more second time units. offset is the periodic bias, is the maximum value of the periodic deviation, N SPis the number of special subframes in a radio frame, is the comb offset, k TC is the total number of dressing levels, also known as RPF (repetition factor). SRS It is used to determine the frequency domain bandwidth length parameter information occupied by SRS in a time domain symbol, that is, the tree level corresponding to the frequency domain bandwidth occupied by SRS in a time domain symbol, or B SRS It is the maximum frequency domain bandwidth level among the frequency domain bandwidth levels corresponding to SRS. According to the b value table, m can be obtained. SRS,b ,n RRC It is the frequency domain position information of SRS, which is a multiple of 4. is the number of PRBs corresponding to the uplink system bandwidth allocated to this terminal, The number of subcarriers in a PRB is 12.n f is the frame index, n hf The value is 0 in the first half of the wireless frame and 1 in the second half of the wireless frame. SP is the number of special subframes in a radio frame (or the number of GAPs in a radio frame, where GAP is the protection interval between uplink and downlink), k TC ,B SRS ,n RRC , b hop They are all high-level configurations. Figure 1 The tree structure shown, set b hopA ={1,2},B SRS =3, using the frequency hopping pattern of formulas (7-1) to (8-4), the frequency hopping pattern is as follows Fig.10b As shown, the union of the frequency domain positions occupied by the reference signal frequency hopping is as follows Fig.10c As shown in the shaded part in the figure, at this time, the frequency domain position occupied by the reference signal frequency hopping has a non-continuous frequency band, and / or the frequency domain position occupied by the reference signal is smaller than the frequency hopping bandwidth (at this time, the frequency hopping bandwidth is b = max (min (b hopA ),0)=0 bandwidth level corresponds to a bandwidth length), in the above setting b hopA The frequency hopping level set in is continuous, but the maximum value in the frequency hopping level set is less than B SRS , that is, max(b hopA )<B SRS Of course, this embodiment does not exclude that the frequency hopping levels in the frequency hopping level set are non-continuous, such as configuration b hopA ={1,3},B SRS =3, then the bandwidth index corresponding to SRS in each bandwidth level is as follows Fig.11a As shown, Fig.11aThis is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 2 ; Further using formulas (7-1) to (8-4), the frequency hopping pattern of the reference signal (i.e., the pattern of the frequency domain occupied by the reference signal changing with time) is as follows Fig.11b As shown, Fig.11b This is an example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention. Figure 2 , at this time, the frequency domain position occupied by the reference signal in a frequency hopping cycle is as follows Fig.11c The oblique line shaded part is shown as follows, where Fig.11c According to the preferred embodiment 1 of the present invention, Fig.11b Schematic diagram of the union of the frequency domain positions occupied by the reference signal frequency hopping in the frequency hopping pattern shown Figure 1 .

[0287] In formulas (7-1) to (7-2), in a level that does not belong to the frequency hopping level set, the frequency domain bandwidth index information of the reference signal does not change with time, and in a level that belongs to the frequency hopping level set, the frequency domain index bandwidth index of the reference signal changes with time. In another implementation of this embodiment, in a level that does not belong to the frequency hopping level set, the frequency domain bandwidth index information of the reference signal changes with time, but the frequency domain bandwidth index set corresponding to the reference signal at the bandwidth level is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level, and in a level belonging to the frequency hopping bandwidth level set, the frequency domain bandwidth index occupied by the reference signal changes with time; and in a level belonging to the frequency domain bandwidth level set, the frequency domain bandwidth index set occupied by the reference signal is the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

[0288] For example, set the frequency hopping level set to b hopA =2, such as Fig.12a As shown, Fig.12a This is an example of different bandwidth index sets according to different bandwidth level jumps provided by preferred embodiment 1 of the present invention. Figure 3 , when b=0,1, n b(t)=0, when b=2, n2(t)∈{0,1}={0,1,...N2-1}, that is, the bandwidth index set of frequency hopping is the set of all bandwidth indexes in the bandwidth level {0,1,...N2-1}, when b=3, n3(t)∈{0,2}∈{0,1,...N3-1}, that is, the bandwidth index set of frequency hopping is the true subset of the set of all bandwidth indexes corresponding to the bandwidth level. That is, there are 3 level sets {0,1}{2}{3}, for the {0,1} bandwidth level set, the bandwidth index occupied by the reference signal is a fixed value that does not change with time, the bandwidth index occupied by the reference signal in the {2} bandwidth level traverses all bandwidth indexes, and the bandwidth index occupied by the reference signal in the {3} bandwidth level is a true subset of the bandwidth index set corresponding to the bandwidth level. Wherein all bandwidth indexes corresponding to the bandwidth level N are bandwidth indexes corresponding to multiple bandwidths in the bandwidth level N included in a bandwidth in the bandwidth level N-1. Wherein N is an integer greater than 0, that is, the bandwidth level is divided into multiple groups, and different bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between the frequency domain bandwidth index corresponding to the reference signal and the time domain parameter, a relationship between the frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level; whether the bandwidth level has frequency hopping, and the frequency hopping order of the bandwidth level group.

[0289] Furthermore, formula (7-3) is changed to the following formula:

[0290]

[0291] in, Default beta b (l) = l, k b =2, of course, you can also configure β b (l),k b When N b When k is an even number, b If N b Factor. b (l) is an integer, or

[0292]

[0293] for Fig.12a The frequency hopping level set configuration shown in FIG. 1 is obtained based on formula (9): Figure 12b The frequency hopping pattern shown, Figure 12b This is an example of frequency hopping based on a frequency hopping bandwidth level set according to the preferred embodiment 1 of the present invention. Figure 3 , optionally

[0294] Or formula (9-1) unified formula (9-3):

[0295]

[0296] in

[0297] where x b is less than or equal to N b A natural number, optionally or Indicates the number of bandwidth groups, β b (l) indicates whether the bandwidth grouping is frequency hopping, and / or the frequency hopping order of different bandwidth groups, wherein the bandwidth grouping indicates that the Nth bandwidth level in the bth bandwidth level includes a bandwidth in the b-1th bandwidth level. b The bandwidth is divided into a plurality of bandwidth groups. Preferably, these bandwidth groups are divided at equal intervals.

[0298] Optionally, the frequency domain bandwidth index set information corresponding to the reference signal in each bandwidth level can be further notified, so that the reference signal performs frequency hopping in the bandwidth indicated by the bandwidth index in its corresponding bandwidth index set in the bandwidth level, and the bandwidth that does not belong to the bandwidth index set does not hop (that is, the reference signal is not transmitted in the bandwidth indicated by the bandwidth index).

[0299] Preferred embodiment 2

[0300] In this preferred embodiment, the frequency domain position occupied by the measurement reference signal sent on a time domain symbol has a non-continuous frequency band. Fig.13 As shown, Fig.13 It is a schematic diagram showing that a reference signal occupies non-continuous frequency domain positions on a time domain symbol according to a preferred embodiment 2 of the present invention.

[0301] Furthermore, in frequency hopping, the frequency domain position occupied by the measurement reference signal sent on a time domain symbol has non-continuous frequency bands, such as Fig.14 As shown, Fig.14 This is an example diagram of a frequency hopping pattern in which a reference signal occupies a non-continuous frequency domain position on a time domain symbol provided according to the preferred embodiment 2 of the present invention.

[0302] in, Fig.13 , Fig.14 The frequency domain positions occupied by the reference signals and the frequency hopping patterns of the reference signals shown are only examples, and this embodiment does not exclude other frequency domain positions of reference signals or other frequency hopping patterns of reference signals.

[0303] There are non-contiguous frequency bands on a time domain symbol. One way is to configure an independent reference signal resource for each continuous frequency band, and another way is to simultaneously allocate these non-contiguous frequency bands in one reference signal resource.

[0304] Specifically, taking the uplink reference signal SRS as an example, when it is necessary to trigger Fig.15a The frequency hopping pattern shown is, Fig.15a It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 1 ; At this time, in one time domain symbol, SRS occupies two frequency bands, and these two frequency bands are still non-continuous, that is, at this time, in one time domain symbol, SRS occupies two frequency domain bandwidths. The two bandwidths complete the channel detection in bandwidth 0 and bandwidth 1 respectively, such as Fig.15a As shown, frequency band 0 includes 4 small frequency bands, frequency band 1 includes 4 small frequency bands, and the reference signal occupies only one small frequency band in a frequency band at a time. If the multi-level bandwidth structure is continued to be used, that is, Fig.15a The bandwidth 0, 1, 2 in corresponds to a bandwidth of level b = 1, Fig.15a A small bandwidth in bandwidth i corresponds to a large bandwidth of level b=2. At this time, an SRS resource 1 can be allocated to bandwidth 0, and an SRS resource 2 can be allocated to bandwidth 2. An SRS resource includes one or more SRS ports. Frequency hopping parameters are configured for SRS resource 1 and SRS resource 2. However, at this time, SRS resource 1 and SRS resource 2 are sent on the same time domain symbol, and the corresponding SRS ports can be the same. For example, the other configuration parameters of SRS resource 1 and SRS resource 2 are the same, the difference is the starting frequency hopping position, which is similar to n in LTE. RRC Different. Similarly, Fig.15b As shown, Fig.15b It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 2 , configure different SRS resources for bandwidth 0 and bandwidth 2. These two resources can be sent on the same time domain symbol. The difference between the two is the starting frequency hopping position, which is similar to n in LTE. RRC Different. Or Fig.15c As shown, Fig.15c It is a schematic diagram of the existence of multiple non-continuous frequency bands on a time domain symbol in the frequency hopping process provided by the preferred embodiment 2 of the present invention. Figure 3 , configure 3 SRS resources, configure SRS resource 1 for frequency hopping in bandwidth 0, configure SRS resource 2 for frequency hopping in {bandwidth 1, bandwidth 2}, and configure SRS resource 3 for frequency hopping in bandwidth 3. Independent frequency hopping parameters can be configured for these SRS resources. Optionally, these SRS resources can share some parameter configurations, such as antenna port configuration.

[0305] In the above example, multiple continuous frequency bands existing in a time domain symbol are respectively configured with independent SRS resources, and these multiple continuous frequency bands are non-continuous. In another implementation of this embodiment, multiple continuous frequency bands existing in a time domain symbol are configured with one SRS resource, but this SRS resource corresponds to multiple independent parameter configuration information. For example Figures 15a-15b The SRS resources in 15c correspond to 2 sets of parameter configurations, and 15c corresponds to 3 sets of parameter configurations.

[0306] Further, in the multiple SRS resources or multiple SRS parameter configurations configured for multiple continuous frequency bands on a time domain symbol, different SRS resources or different SRS parameter configurations may include at least one of the following parameters: a frequency hopping level set, frequency hopping start level information, and frequency hopping end level information.

[0307] Preferred embodiment 3

[0308] In this embodiment, the dynamic control signaling notifies the frequency hopping pattern, and at least one of the following information is notified in the dynamic control signaling: frequency hopping bandwidth level set information, frequency hopping bandwidth starting level information, frequency hopping bandwidth ending level information, frequency domain bandwidth level information occupied by the reference signal on a time domain symbol, frequency hopping cycle number information, number of time domain symbols occupied by the reference signal, reference signal cycle information, reference signal cycle offset information, time domain symbol index information occupied by the reference signal in a time unit, number of time domain symbols occupied by the reference signal in a time unit, time domain frequency hopping unit information of the reference signal, number of ports corresponding to the reference signal, number of port groups of the reference signal, reference signal port group hopping pattern information, reference signal frequency hopping parameter set index information;

[0309] The frequency hopping parameter set information is carried in high-level control signaling (for example, the high-level signaling includes RRC signaling and / or MAC CE signaling), and the time-domain frequency hopping unit information of the reference signal refers to that the reference signal performs frequency hopping once after every time domain symbol included in the time-domain frequency hopping unit, and the frequency domain position of the reference signal remains unchanged within the time-domain frequency hopping unit. The relationship between the hopping of the reference signal resource group and the frequency domain hopping, the relationship between the hopping of the port group and the frequency domain hopping, the starting frequency domain position occupied by the reference signal, the number of frequency domain hoppings of the reference signal, the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings, the function type of the frequency domain position occupied by the reference signal changing with time, the frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level; the frequency hopping frequency band set information of the reference signal, whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode; frequency domain bandwidth level grouping information, whether the frequency domain bandwidth level group is frequency hopping information, frequency domain bandwidth grouping information, whether the frequency domain bandwidth group is frequency hopping information, and frequency domain bandwidth group hopping sequence information.

[0310] Specifically, similar to the tree structure of the reference signal frequency domain position established in LTE, the frequency hopping bandwidth level set information is b described in the embodiment. hopA , the frequency hopping bandwidth starting level information is similar to b in LTE hop , or b described in Example 1 hopA The minimum value of the frequency hopping bandwidth end level information is similar to B in LTE SRS , or b described in Example 1 hopA The frequency domain bandwidth level information occupied by the reference signal on a time domain symbol is similar to the B SRS , or B. The frequency hopping cycle number information described in Example 1 indicates the number of times the same frequency domain position reference signal is sent, such as Figure 2 In the example, the number of frequency hopping cycles is 1. Fig.11b, 12b, the number of frequency hopping periods in 14 is 2. The number information of the time domain symbols occupied by the reference signal indicates the number of time domain symbols occupied by the reference signal resource currently dynamically triggered, including the number occupied in a slot and the number of occupied slots. The number information of the time domain symbols occupied by the reference signal may be at the reference signal resource level (i.e., one reference signal resource corresponds to one number information, i.e., the total number of time domain symbols occupied by this reference signal resource. At this time, there may be a reference signal port in the reference signal resource that occupies a number of time domain symbols less than the number of time domain symbols occupied by the reference signal resource), or at the port level (i.e., different reference signal ports in a reference signal resource may occupy different numbers of time domain symbols, or all reference signal ports in a reference signal resource occupy the number information of time domain symbols. When only part of the reference signal ports in the reference signal resource are transmitted on a time domain symbol, the total number of time domain symbols occupied by the reference signal resource shall be greater than the number of time domain symbols occupied by a port). The reference signal period information (indicating the period information between reference signal time domain symbols, or or the reference signal occupies a slot period, each slot can occupy multiple time domain symbols, and different time domain symbols in a slot do not satisfy the periodic characteristics), the reference signal period offset information, the time domain symbol index information occupied by the reference signal in a time unit (for example, the time unit is a slot or a subframe, and the time domain symbols occupied in a slot are continuous or evenly spaced in the time domain. At this time, only the starting time domain symbol index and / or the ending time domain symbol index are notified, or the starting time domain symbol index and the time domain duration are notified, and / or the interval information between the time domain symbols is notified), the number of time domain symbols occupied by the reference signal in a time unit, and the time domain frequency hopping unit information of the reference signal (the time domain frequency hopping unit in LTE is now 1 time domain symbol, that is, when the time domain symbol changes, the frequency domain starts to hop. In NR, due to the consideration of receiving beam training, multiple time domain symbols can be activated in a slot, and considering the possibility of port group hopping first and then frequency domain hopping, it is necessary to consider frequency domain hopping between every N reference signal time domain symbols, where N is a natural number, such as Fig.16 As shown, Fig.16It is a schematic diagram of a time domain frequency hopping unit of 2 time domain symbols provided according to a preferred embodiment 3 of the present invention; a frequency domain hopping occurs after every 2 reference signal time domain symbols), information on the number of ports corresponding to the reference signal, information on the number of port groups of the reference signal (grouping the reference signal ports in a reference signal resource, and grouping the ports in the reference signal resource according to the number of ports and the number of port groups in the signal resource group, and the agreed rules), reference signal port group hopping pattern information (when there are multiple reference signal port groups, relevant information on how the port groups hop), reference signal frequency hopping parameter set index information, wherein the frequency hopping parameter set is configured through high-level signaling (such as RRC signaling and / or MAC CE signaling configuration). the relationship between the hopping of the reference signal resource group and the frequency domain hopping (for example, when there are multiple SRS resources, is the SRS resource hopping first and then the frequency domain resource hopping, or is the frequency domain hopping first and then the SRS resource hopping, or is the SRS resource hopping at the same time as the frequency domain hopping), the relationship between the hopping of the port group and the frequency domain hopping (for example, one SRS resource includes multiple antenna ports, and these antenna ports are divided into antenna port groups, and it is necessary to determine the relationship between the hopping of the antenna port group and the frequency domain hopping, is the SRS port group hopping first and then the frequency domain resource hopping, or is the frequency domain hopping first and then the SRS port group hopping, or is the SRS port group hopping at the same time as the frequency domain hopping), the starting frequency domain position occupied by the reference signal (for example, the starting frequency domain position where the reference signal is located during frequency hopping), the number of frequency domain hoppings of the reference signal (that is, the number of frequency domain changes of the reference signal), the frequency domain interval between the frequency domain positions corresponding to adjacent frequency domain hoppings (the hopping interval, the unit of the unit frequency domain interval a frequency band, wherein one frequency band is at least one of the following: a PRB, a subband, a bandwidth part, and a bandwidth corresponding to a component carrier frequency), a function type of how the frequency domain position occupied by the reference signal changes with time (for example, there are multiple frequency hopping pattern functions, and the frequency hopping pattern function is determined by signaling or agreed rules, wherein the frequency hopping pattern is a function of how the frequency domain position occupied by the reference signal changes with time), frequency domain bandwidth index set information corresponding to the reference signal in a frequency domain bandwidth level (in the case of multi-level frequency domain bandwidth, the frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level is the frequency domain bandwidth index occupied by the reference signal); frequency hopping frequency band set information of the reference signal (for example, the base station allocates a frequency hopping frequency band to the terminal as {frequency band 1, frequency band 5, frequency band 6}, and the terminal performs frequency hopping in the allocated frequency hopping frequency band set), whether the reference signal is in a continuous frequency domain hopping mode or a non-continuous frequency domain hopping mode (such as Figure 2 As shown in the grid, the frequency domain position occupied by the reference signal in a frequency hopping cycle is continuous, such as Fig.10c, as described in the shaded part in the figure, the frequency domain position occupied by the reference signal in a frequency hopping cycle has a non-continuous frequency band); frequency domain bandwidth level grouping information (the frequency domain bandwidth level is divided into multiple groups, and different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level, for example, in the bandwidth level in level grouping 1, the bandwidth index corresponding to the reference signal changes over time, and / or the bandwidth index corresponding to the reference signal is the mapping relationship between all frequency domain bandwidth index sets corresponding to the bandwidth level. The present invention relates to a subset 1 of a reference set, in the bandwidth level in the level grouping 2, the bandwidth index corresponding to the reference signal does not change with time, and / or the bandwidth index corresponding to the reference signal is a subset 2 of the set of all frequency domain bandwidth indexes corresponding to the bandwidth level), whether the frequency domain bandwidth level group is frequency hopping, frequency domain bandwidth grouping information (for example, dividing the bandwidths in multiple N-th level bandwidth levels included in a bandwidth in the N-1-th bandwidth level into multiple groups), whether the frequency domain bandwidth group is frequency hopping, and frequency domain bandwidth group frequency hopping order information (for example, the frequency hopping order is frequency domain bandwidth group 1, frequency domain bandwidth group 2, frequency domain bandwidth group 3, or frequency domain bandwidth group 1, frequency domain bandwidth group 3, frequency domain bandwidth group 2, where the frequency hopping order is the order of sending time of different bandwidth groups).

[0311] In the above implementation, the frequency hopping related parameter information is notified in the physical layer dynamic control signaling. This embodiment does not exclude notifying at least one of the following information in the physical layer dynamic control signaling: tree structure information (similar to C in LTE); SRS ,Based on this parameter, its tree structure can be established, such as the number of tree levels, the number of leaves included in each level, the bandwidth length information corresponding to each leaf, etc.).

[0312] In the above implementation, the above information is notified in the physical layer dynamic control signaling, and this embodiment does not exclude that part of the above parameters are notified in the physical layer dynamic signaling, and part of the parameters are notified in the high-level control signaling. The frequency hopping parameters are determined in combination.

[0313] In LTE, the SRS configuration parameters triggered by high layers and the SRS configuration parameters triggered by dynamic signaling are independent. In this embodiment, some parameters are shared between the two, or the parameter configuration of the SRS triggered by dynamic signaling needs to rely on the configuration parameters of the SRS configured by high layers, such as the set of time domain symbol positions occupied by the SRS triggered by dynamic signaling is a subset of the set of time domain symbol positions occupied by the SRS triggered by high layers. When both the SRS triggered by high layers and the SRS triggered by dynamic signaling are to be sent on the same symbol, the SRS triggered by high layers is discarded, or when only the frequency domain resources occupied by the two overlap, the SRS triggered by high layers is discarded. Fig.17 As shown, Fig.17 3 is a schematic diagram of the relationship between the high-level triggered SRS and the dynamically triggered SRS provided in the preferred embodiment of the present invention, wherein the rough side stage is triggered by the high-level triggered SRS or the second control signaling sent previously, such as periodic transmission, and the union of the frequency domain resources occupied by the SRS has non-continuous frequency bands (such as Fig.17 As shown, the reference signal occupies one bandwidth in every 4 bandwidths. During the coarse side period, the base station selects one of the two bandwidth groups (bandwidth group 1 includes {bandwidth 0 to bandwidth 3}, and bandwidth group 2 includes {bandwidth 4 to bandwidth 7}). Dynamic signaling triggers the fine side in a bandwidth group, such as hopping in all bandwidths in one bandwidth group during the fine side stage. Fig.17 After the first coarse side, the base station dynamically triggers the jump in the first bandwidth group. After the second coarse side, the base station selects the second bandwidth group for fine side. In the fine side stage, the reference signal in the coarse side stage is no longer sent on the bandwidth already occupied in the coarse side stage, for example Fig.17 As shown, after the first coarse side cycle, the base station selects bandwidth group 1. In the coarse side stage, the terminal has sent a reference signal on bandwidth 0 in bandwidth group 1. Then, in the fine side stage, the terminal only needs to send a reference signal on {bandwidth 1 to bandwidth 3} in bandwidth group 0. Or at least in the fine measurement stage, the starting bandwidth position in bandwidth group 1 does not start from bandwidth 0 where the reference signal has been sent. That is, the frequency domain position occupied by the SRS triggered by dynamic signaling is determined according to the configuration parameters and time domain parameters of the SRS triggered by high-level signaling. On the other hand, in order to reduce the time domain resources occupied by the SRS, the time domain resources occupied by the SRS triggered by dynamic signaling are a subset of the time domain resources in the coarse side stage. When an SRS triggered by dynamic signaling collides with high-level signaling (or a periodically sent SRS reference signal), the SRS sent periodically is scheduled.

[0314] Or the coarse measurement is configured by high-level signaling and triggered by dynamic signaling (such as half-cycle SRS), and the fine measurement parameters are also configured by high-level signaling and triggered by dynamic signaling. At this time, there is a correlation between the two high-level configuration signalings, for example, some parameters between the two high-level configuration signalings are shared.

[0315] Or the coarse measurement is RRC signaling configuration, dynamic signaling trigger (such as half-periodic SRS), and the fine measurement parameters are MAC CE signaling configuration, dynamic signaling trigger. At this time, some parameters are shared between the RRC signaling configuration and the MAC CE signaling configuration, such as between the two high-level configuration signaling, or the parameter configuration range of MAC CE depends on the parameter configuration of the RRC signaling.

[0316] In this preferred embodiment, the physical layer dynamic control signaling is included in PDCCH (Physical Downlink Control Channel). For example, the physical layer dynamic control information is included in DCI.

[0317] Preferred embodiment 4

[0318] In this preferred embodiment, the relationship between the reference signal port group hopping and the frequency domain hopping is specifically described.

[0319] There are three modes as follows. The first relationship is that the port group also jumps while the frequency domain jumps, such as Fig.18a As shown, Fig.18a 4 is a schematic diagram of a port group that is also jumping while the frequency domain is jumping according to a preferred embodiment of the present invention. The second relationship is that the reference signal port group jumps first, and then the frequency domain jumps, such as Fig.18b As shown, Fig.18b is a schematic diagram of first antenna port hopping and then frequency domain hopping according to the preferred embodiment 4 of the present invention; the third relationship is first frequency domain hopping and then port group hopping, such as Fig.18c As shown, Fig.18c is a schematic diagram of frequency domain hopping followed by port group hopping according to a preferred embodiment 4 of the present invention, Figures 18a to 18c Taking port0 and port1 as an example, similarly, port0 and port1 may correspond to the first port group and the second port group, and each port group includes at least one reference signal port.

[0320] A frequency hopping relationship may be fixed, or a signaling notification may be used to determine which hopping relationship is used, or the hopping relationship may be determined based on the number of time domain symbols occupied by the reference signal resource in a slot. Alternatively, the relationship may be determined based on the number of continuous time domain symbols occupied by the reference signal, wherein the continuous time domain symbols may be in multiple slots.

[0321] Specifically, when the number of time domain symbols occupied by the reference signal resource in a slot (or the number of consecutive symbols occupied by the reference signal) is greater than or equal to a predetermined threshold, the second relationship is adopted, otherwise the first relationship is adopted, for example, the predetermined threshold is the number of port groups. The relationship can also be called a hopping mode.

[0322] Preferred embodiment 5

[0323] In this embodiment, the resource frequency hopping of different reference signals needs to meet certain rules, that is, the frequency hopping between different reference signal resources meets certain constraints. Relevant parameters are configured in the configuration information of the reference signal resource group (also referred to as a reference signal resource set, including multiple reference signal resources), and all reference signal resources in the reference signal resource group perform resource hopping and frequency domain hopping according to the configured parameters;

[0324] For example, there are several types of hopping relationships between reference signal resource hopping and frequency domain hopping.

[0325] The first type: when the frequency domain hops, the sending resource group also hops, such as Fig.19a As shown, Fig.19a This is a schematic diagram showing that SRS resources also hop while frequency domain hopping is provided in a preferred embodiment 5 of the present invention;

[0326] The second method is to send resource group hopping first and then frequency domain hopping, such as Fig.19b As shown, Fig.19b It is a schematic diagram of first SRS resource group hopping and then frequency domain hopping provided according to the preferred embodiment 5 of the present invention.

[0327] The third method: frequency hopping in the frequency domain first, and then frequency hopping with reference to the signal resources, such as Fig.19c As shown, Fig.19c It is a schematic diagram of frequency domain hopping followed by port group hopping according to preferred embodiment 5 of the present invention;

[0328] Figure 19a to Figure 19b In the example, sending resource 1 and sending resource 0 are taken. Similarly, sending resource 1 can correspond to sending resource group 1, and sending resource 0 can correspond to sending resource group 0. A sending resource group includes at least one sending resource. Resources in a sending resource group are sent at the same time, and resources in different sending resource groups are sent in time.

[0329] A frequency hopping relationship may be fixed, or a signaling notification may be used to determine which relationship is used, or the relationship may be determined according to the number of time domain symbols occupied by a reference signal resource set in a slot, or the relationship may be determined according to the number of continuous time domain symbols occupied by the reference signal, wherein the continuous time domain symbols may be in multiple slots, wherein the reference signal resource set includes the multiple reference signal resources of the hopping, such as an SRS resource set (or SRS resource group) including {SRS resource 0, SRS resource 1}.

[0330] Specifically, when the number of time domain symbols occupied by a reference signal resource set (or reference signal resource group) in a slot is greater than or equal to a predetermined threshold, the second relationship is adopted, otherwise the first relationship is adopted, for example, the predetermined threshold is the number of port groups.

[0331] Relationships can also be called transition patterns.

[0332] Preferred embodiment 6

[0333] In this preferred embodiment, tree structure information is added to the dedicated control signaling. According to this parameter, the tree structure can be established, such as the number of tree levels, the number of leaves in each level, the bandwidth length information corresponding to each leaf, etc., similar to C in LTE. SRS .

[0334] In LTE, Cell Specific Notification C SRS The period information and period offset information of SRS, when PUCCH / PUSCH and Cell-Specific SRS resources are in the same subframe, PUCCH / PUSCH is not sent on the time domain symbol occupied by SRS, which causes a waste of resources, because on the one hand, the SRS resources configured by Cell-Specific may not be allocated to any terminal. The starting time domain position and ending time domain position of PUCCH / PUSCH in NR may be dynamically notified, so PUCCH / PUSCH does not need to avoid SRS resources, or PUCCH with dynamically scheduled time domain / frequency domain resources does not need to avoid SRS resources, only periodic PUCCH needs to avoid SRS resources.

[0335] Further, SRS resource pool information can be configured for PUSCH / PUCCH, or SRS resource pool can be configured only for periodic PUCCH, and the PUCCH / PUSCH or periodic PUCCH avoids the configured SRS resource pool resources. Preferably, the configured SRS resource pool resources are configured in dedicated control signaling.

[0336] Preferably, only the PRBs occupied by the SRS are avoided, and the PRBs not occupied in the time domain symbols corresponding to the SRS do not need to be avoided.

[0337] One way of sending SRS resources of UE-Specific is to fall into the SRS resource pool for PUCCH / PUSCH / periodic PUCCH rate matching, and another way is that the resources of SRS sent by UE-Specific can be outside the SRS resource pool for PUCCH / PUSCH / periodic PUCCH rate matching. The SRS resources include at least one of the following resources: SRS resources, SRS time domain resources, SRS frequency domain resources, SRS code domain resources, SRS spatial domain resources

[0338] Preferred embodiment 7

[0339] In this preferred embodiment, the base station allocates a non-continuous frequency domain resource group, and the terminal regards these non-continuous frequency domain resource blocks as virtual frequency domain resource blocks, combines them into a tree structure similar to that in LTE, and performs frequency hopping of all frequency domain resource blocks within the range of the virtual frequency domain resource blocks, or frequency hopping of part of the virtual frequency domain resource blocks.

[0340] Frequency domain hopping is performed in continuous virtual frequency domain resource blocks, and there are agreed mapping rules from virtual frequency domain resource blocks to physical frequency domain resource blocks.

[0341] like Fig.20a As shown, Fig.20a It is a schematic diagram of a preferred frequency band set selected by a base station according to a preferred embodiment 7 of the present invention, wherein the preferred frequency band set has non-continuous frequency bands. By sending a full-bandwidth SRS or a full-bandwidth hopping SRS, the base station selects a preferred bandwidth set for a UE, wherein the preferred bandwidth set has non-continuous frequency bands. The bandwidths in these selected preferred bandwidth sets are virtualized and numbered, such as Fig.20b These virtualized bandwidths are combined into a 3-level tree structure with b=0,1,2. Fig.20b is a schematic diagram of a terminal performing frequency hopping on a virtual frequency domain resource according to a preferred embodiment of the present invention, and then adopting Fig.20b Frequency Hopping. Fig.20a Although the virtualized bandwidth completes full frequency hopping, the actual physical resource bandwidth corresponding to the frequency domain range of these hoppings has non-continuous frequency bands.

[0342] In this preferred embodiment, the frequency domain resource block may be a PRB (Physical resource block), a subband, or a partial band. Or a bandwidth part (similar to the bandwidth part in the NR discussion, such as a bandwidth part of 1 MHz), or a frequency domain bandwidth corresponding to a carrier frequency component (such as a frequency domain bandwidth corresponding to a CC).

[0343] Preferred embodiment 8

[0344] In this preferred embodiment, the antenna port for sending the SRS is determined according to the SRS resource group ID, and / or the antenna port group ID, and / or the time domain parameters. The antenna port group may also be referred to as an antenna port category, or other names.

[0345] Furthermore, an antenna port for sending an SRS in an SRS resource is determined according to the SRS resource group ID and the number of antenna ports in the SRS resource.

[0346] Specifically, different SRS resources in an SRS resource group use the same antenna port to send SRS, and different SRS resource groups can correspond to different antenna ports. For example, an SRS resource group includes N SRS resources, and each SRS resource includes 1 or 2 SRS ports. These SRS resources are for beam training, and for fairness, it is necessary to limit these beams to come from the same transmit antenna. Because the same transmit beam has different performance when it reaches the receiving end after being sent from different transmit antennas. However, since the terminal has multiple panels, beam training is required for different panels. At this time, 2 SRS resource sets are required. The SRS resources in each SRS resource set include 1 or 2 SRS ports, but the transmit antennas corresponding to the 1 or 2 SRSports included in the SRS resources in different SRS resource sets should come from different panels.

[0347] Specifically, as shown in Table 1, there are two SRS resource groups {SRS resource group 1, SRS resource group 2}, SRS resource group 1 includes 4 SRS resources, SRS resource group 2 includes 8 SRS resources, and each SRS resource includes 1 SRS port. At this time, the correspondence between the SRS resource groups and the SRS antenna ports is shown in Table 1.

[0348] Table 1

[0349] SRS resource group ID SRS port 1 10 2 11

[0350] Among them, SRS port 10 and SRS port 11 are different antenna ports. Unlike LTE, all SRS resources of one SRS port only correspond to antenna port 10. Specifically, the antenna port management in LTE is shown in Table 2, which needs to be enhanced in NR as shown in Table 3 or Table 4. That is, there are multiple 1-antenna ports at this time, and there can also be multiple 2-antenna ports. In Table 3, there are 4 types of 1-antenna ports, 3 types of 2-antenna ports, and 2 types of 4-antenna ports. This is just an example and does not exclude other types. The antenna port for sending SRS in Table 4 is determined according to the number of antenna ports and the antenna port group index.

[0351] Table 2

[0352]

[0353] Table 3

[0354]

[0355] Table 4

[0356]

[0357] On the other hand, in LTE, there is no association between port10 and port20~port21, port40~port43, which is left for terminal implementation. However, in NR, the SRS resource of 1 antenna port is used in the beam training stage, and the SRS resource of 4 antenna ports is used in the uplink PMI acquisition stage. For beam training, port10 can be further limited to be associated with {port40~port 41}, for example, port10 is selected from {port40~port 41} and cannot be combined. In short, antenna ports with different numbers of antenna ports are associated with each other, that is, SRS resource 1 including N ports and SRS resource 2 including M antenna ports, when N is less than or equal to M, or when N and M are fixed combinations, there is an association between N antenna ports and M antenna ports, for example, (N=1, M=4) is associated with each other.

[0358] Further, the antenna port relationship between different SRS resources can be determined according to the time parameter, such as different SRS resources at the same time correspond to different transmit antennas, or there is no association between the antenna ports of different SRS resources at the same time, such as different SRS resources at different times correspond to the same transmit antenna (further, this limitation is adopted when these SRS resources are included in an SRS resource group), or there is an association between the antenna ports of different SRS resources at different times (for example, when these SRS resources are included in an SRS resource group and are not transmitted at the same time, they correspond to the same antenna port).

[0359] Preferred embodiment 9

[0360] In this preferred embodiment, different bandwidth resources (or frequency domain positions) correspond to different RPFs, such as Fig.21 As shown, Fig.21 It is a schematic diagram of frequency domain hopping in a virtual bandwidth provided according to preferred embodiment 9 of the present invention. The relationship between bandwidth resources and RPF is determined by signaling information or a rule agreed upon by a base station and a terminal.

[0361] exist Fig.21 In the frequency domain position 0 (also called frequency domain bandwidth 0), the RPF corresponding to the SRS is 2, and in the frequency domain position 1 (also called frequency domain bandwidth 1), the RPF corresponding to the SRS is 4.

[0362] In the present application, the unit of frequency domain position (or frequency domain bandwidth) is at least one of the following: PRB (Physical resource block), subband (including a predetermined number of PRBs), or a partial band. Or a bandwidth part (similar to the bandwidth part in the NR discussion), or a frequency domain bandwidth corresponding to a carrier frequency component (such as the frequency domain bandwidth corresponding to a CC). The unit of the frequency domain repetition factor in RPF is subcarrier, that is, the reference signal occupies one RE for every RPF subcarriers.

[0363] Preferred Embodiment 10

[0364] In this embodiment, the variation of the time-domain frequency hopping unit over time during the frequency hopping process is described.

[0365] like Fig.22a As shown, Fig.22a Schematic diagram of the relationship between the time domain frequency hopping unit and time according to the preferred embodiment 10 of the present invention Figure 1 In a frequency hopping cycle, the time domain hopping unit of the first three frequency domain hoppings is 2, and the time domain hopping unit corresponding to the subsequent frequency domain hopping is 1. For beam training, the base station can obtain the preferred receiving beam based on the first three frequency hoppings, and then use the preferred receiving beam to receive the remaining frequency hoppings in this frequency hopping cycle.

[0366] Or Figure 22b As shown, Figure 22b Schematic diagram of the relationship between the time domain frequency hopping unit and time according to the preferred embodiment 10 of the present invention Figure 2 In a frequency hopping cycle, the time domain hopping unit of the previous frequency domain hopping is 2, and the time domain hopping unit corresponding to the subsequent frequency domain hopping is 1. For beam training, the base station can obtain the preferred receiving beam based on the previous frequency domain, and then use the preferred receiving beam to receive the remaining frequency hopping in this frequency hopping cycle.

[0367] Figures 22a-22b In the embodiment, the time domain frequency hopping unit is 2, and 1 is only an example, and this embodiment does not exclude other time domain frequency hopping units. The time domain frequency hopping unit indicates that the frequency domain of the reference signal in the time domain frequency hopping unit remains unchanged, and the frequency domain of the reference signal changes between the time domain frequency hopping units. The time domain frequency hopping unit information may be the number of time domain symbols occupied by the reference signal (the reference signal may be in one slot or in multiple slots), or the time domain frequency hopping unit information may be the period information of the reference signal and / or the number of time domain symbols included in one period.

[0368] The relationship between the time-domain frequency hopping unit and time is determined according to a predetermined rule and / or through signaling information.

[0369] Optionally, the frequency hopping pattern function formula (6) in LTE needs to be changed to the following form:

[0370]

[0371] Or the frequency hopping pattern function in formula (7-3) is changed to the following formula:

[0372]

[0373] Or change the frequency hopping pattern function in formula (9-1) to the following formula:

[0374]

[0375] Or we can change (9-3) into the following form:

[0376]

[0377] T1 in the above four formulas is the time domain frequency hopping unit information.

[0378] Or the above four formulas can be changed to the following formula

[0379]

[0380]

[0381]

[0382]

[0383] Where T 1,b is the time domain frequency hopping unit information corresponding to bandwidth level b. According to signaling information or agreed rules, T is obtained. 1,b .

[0384] Preferred Embodiment 11

[0385] In the Rel-15 version of NR, there will be signaling to notify the Reserved resources. No signals will be sent or received on these resources. These resources are reserved for signals in future versions for backward compatibility.

[0386] In the frequency hopping process, when the allocated reference signal resources overlap with the allocated reserved resources, the frequency hopping reference signal is not sent on the reserved resources, or the frequency domain position that the reference signal needs to occupy on the reserved resources is postponed to the next frequency hopping resource. Or when there is an overlap, the current frequency hopping reference signal will not be sent, the current frequency hopping will be discarded, or the frequency domain position that the current frequency hopping reference signal needs to occupy will be postponed to the next frequency hopping resource.

[0387] The reference signal in the above embodiment may be an uplink reference signal or a downlink reference signal.

[0388] In the application, the frequency domain bandwidth level may also be referred to as a bandwidth length index, or a tree level, or a tree hierarchy, and the bandwidth index may also be referred to as a frequency domain position index, or a leaf index, or other names, which does not affect the creativity of the present application.

[0389] In the present application, a frequency domain block includes at least one physical resource block (Physical resource block PRB), and the reference signal occupying the frequency domain block means that the reference signal occupies RE in the frequency domain block, such as occupying part of the RE in the frequency domain block (such as occupying D REs in a PRB, such as D = 1, 3, etc.), or a frequency domain block can be a subband (including a predetermined number of PRBs), or a frequency domain block partial band (partial bandwidth). Or it is a bandwidth part (similar to the bandwidth part in the NR discussion), or the bandwidth corresponding to a component carrier. That is, in the present application, the unit of the frequency domain position (or a frequency band / a frequency domain bandwidth) is at least one of the following: PRB (Physical resource block), subband (including a predetermined number of PRBs), or a partial band. Or it is a bandwidth part (similar to the bandwidth part in the NR discussion)

[0390] In the application, the continuous frequency band is based on a set of N PRBs that are physically or logically continuous, where N is an integer greater than or equal to 1. If the PRBs contained in two frequency bands are physically or logically non-contiguous, the two frequency bands are non-contiguous.

[0391] In this application, min(A) means taking the minimum value of set A, and max(A) means taking the maximum value of set A. It means to round x down. Indicates rounding x upwards.

[0392] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0393] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reference signal sending method, characterized in that: include: Determining that the frequency domain position occupied by the reference signal satisfies a predetermined condition, wherein the predetermined condition includes: there are non-continuous frequency bands in the frequency domain position occupied by the reference signal, and a union of the frequency bands occupied by the reference signal is less than or equal to the frequency hopping bandwidth; Sending the reference signal at a determined frequency domain position; The frequency hopping bandwidth is a bandwidth determined according to the two frequency domain positions farthest apart among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to the frequency hopping configuration range notified in the first signaling message; One of the frequency bands is a physical resource block PRB; When there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: When the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; Among them, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, and there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level is a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; wherein N is an integer greater than or equal to 1.

2. The method according to claim 1, characterized in that The frequency domain position occupied by the reference signal has a non-continuous frequency band including: In a frequency hopping cycle, the frequency domain position occupied by the reference signal has a non-continuous frequency band; The frequency domain position occupied by the reference signal in a frequency hopping manner has non-continuous frequency bands.

3. The method according to claim 2, characterized in that The frequency hopping period satisfies at least one of the following characteristics: In different frequency hopping cycles, the frequency domain position occupied by the reference signal has repeated frequency bands; In different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; There is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping period and the time domain parameters, and the second mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping period and the time domain parameters.

4. The method according to claim 1, characterized in that The predetermined conditions also include: The frequency domain positions occupied by the reference signals in a frequency hopping manner are distributed at equal intervals on the frequency hopping bandwidth.

5. The method according to claim 1, further characterized in that: In the case that there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

6. The method according to claim 5, characterized in that The frequency domain bandwidth index occupied by the reference signal also satisfies: When the frequency domain bandwidth level belongs to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index occupied by the reference signal changes with time.

7. The method according to claim 5 or 6, characterized in that: The frequency hopping bandwidth level set satisfies at least one of the following: The levels in the frequency hopping bandwidth level set are non-contiguous; The maximum level in the frequency hopping bandwidth level set is less than or equal to the first level, wherein the first level is the maximum frequency domain bandwidth level in the frequency domain bandwidth levels corresponding to the reference signal; The frequency hopping bandwidth level set may be an empty set; In one time domain symbol, the reference signal corresponds to more than two frequency hopping bandwidth level sets; The frequency hopping bandwidth level set information is carried in the received signaling information.

8. The method according to claim 1, characterized in that The frequency domain position k(t) occupied by the reference signal is determined by: Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b'=0,1,…,B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), and N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is a set of frequency domain bandwidth levels.

9. The method according to claim 8, characterized in that Before determining the frequency domain position occupied by the reference signal, the method further includes: Acquire at least one of the following parameters through the second signaling information and / or the agreed table: B, N b , n b,orig , k org , b hopA , b hopA_min , b hopA_max ; Among them, b hopA ={b,b hopA_min ≤b≤b hopA_max }, b hopA_min , b hopA_max Is a non-negative integer or b hopA_min , b hopA_max is a non-negative integer less than B.

10. The method according to claim 8, characterized in that The b hopA Satisfy at least one of the following: max(b hopA )≤B; b hopA The non-contiguous frequency domain bandwidth level index is included; b hopA Can be an empty set; In one time domain symbol, the reference signal corresponds to more than two b hopA .

11. The method according to claim 1, characterized in that: In the case where the reference signal frequency domain bandwidth is multi-level, the method further includes: Receive a second signaling message, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for the reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for the reference signal hopping in a frequency hopping bandwidth level set; wherein a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

12. The method according to claim 1, characterized in that When the reference signal frequency domain bandwidth is multi-level, the reference signal satisfies at least one of the following characteristics: The frequency domain bandwidth level of the reference signal is divided into a plurality of frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level; On a time domain symbol, the reference signal corresponds to more than two frequency domain bandwidth indexes in a frequency domain bandwidth level; The reference signal corresponds to more than two starting frequency domain bandwidth level information; The reference signal corresponds to more than two ending frequency domain bandwidth level information; The reference signal first performs frequency domain bandwidth hopping within a frequency domain bandwidth group, and then performs frequency domain bandwidth hopping between frequency domain bandwidth groups; Among them, one of the frequency domain bandwidth groups is a frequency domain bandwidth group consisting of one or more frequency domain bandwidths in the multiple frequency domain bandwidths in the Nth level, including a frequency domain bandwidth in the N-1th level corresponding to the reference signal.

13. The method according to claim 1, characterized in that In the case where the reference signal frequency domain bandwidth is multi-level, the method further includes: A third signaling message is received, wherein the third signaling message is used to determine whether the reference signal hops within a frequency domain bandwidth group.

14. The method according to claim 1, characterized in that The frequency domain position k(t) occupied by the reference signal is determined by: Wherein, t is a time parameter, t is a real number greater than or equal to 0, b or b' is the frequency domain bandwidth level index corresponding to the reference signal in the multi-level frequency domain bandwidth level, b or b'=0,1,…,B, B is the maximum frequency domain bandwidth level in the frequency domain bandwidth level corresponding to the reference signal, and B is a non-negative integer, Nb is the number of bandwidths in the frequency domain bandwidth level indexed as b included in a bandwidth in the frequency domain bandwidth level indexed as max(b-1,0), and N b' is the number of bandwidths in the frequency domain bandwidth level indexed as b' that is included in a bandwidth in the frequency domain bandwidth level indexed as max(b'-1,0), max() is the function that takes the maximum value, n b,orig is the starting frequency domain bandwidth index of the reference signal in the frequency domain bandwidth level indexed by b, n b (t) is the frequency domain bandwidth index corresponding to the reference signal in the frequency domain bandwidth level indexed by b at time t, k org is a non-negative integer, is the frequency domain length corresponding to a bandwidth in the frequency domain bandwidth level with index b, Π is the multiplication operation, mod is the remainder function, b hopA is the frequency domain bandwidth level set, x b , k b is less than or equal to N b The natural number, β b (l)∈{0,1,...,x b -1}.

15. The method according to claim 14, characterized in that The method further comprises: At least one of the following parameters is obtained by receiving the fourth signaling message or by means of an agreed rule: β b (l), k b , x b .

16. The method according to claim 1, characterized in that Also includes: Receiving physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries period offset information of the reference signal; The reference signal is sent according to the period offset information of the reference signal.

17. A reference signal receiving method, characterized in that: include: Determining that the frequency domain position occupied by the reference signal satisfies a predetermined condition, wherein the predetermined condition includes: there are non-continuous frequency bands in the frequency domain position occupied by the reference signal, and a union of the frequency bands occupied by the reference signal is less than or equal to the frequency hopping bandwidth; Receiving the reference signal at a determined frequency domain position; The frequency hopping bandwidth is a bandwidth determined according to the two frequency domain positions farthest apart among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to the frequency hopping configuration range notified in the first signaling message; One of the frequency bands is a physical resource block PRB; When there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: When the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; Among them, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, and there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level is a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; wherein N is an integer greater than or equal to 1.

18. The method according to claim 17, characterized in that The frequency domain position occupied by the reference signal has a non-continuous frequency band including: In a frequency hopping cycle, the frequency domain position occupied by the reference signal has a non-continuous frequency band; The frequency domain position occupied by the reference signal in a frequency hopping manner has non-continuous frequency bands.

19. The method according to claim 18, characterized in that The frequency hopping period satisfies at least one of the following characteristics: In different frequency hopping cycles, the frequency domain position occupied by the reference signal has repeated frequency bands; In different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; There is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping period and the time domain parameters, and the second mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping period and the time domain parameters.

20. The method according to claim 17, characterized in that The predetermined conditions also include: The frequency domain positions occupied by the reference signals in a frequency hopping manner are distributed at equal intervals on the frequency hopping bandwidth.

21. The method according to claim 17, further characterized in that: In the case that there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

22. The method according to claim 17, characterized in that In the case where the reference signal frequency domain bandwidth is multi-level, the method further includes: A second signaling message is sent, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for the reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for the reference signal hopping in a frequency hopping bandwidth level set; wherein a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

23. The method according to claim 17, characterized in that When the reference signal frequency domain bandwidth is multi-level, the reference signal satisfies at least one of the following characteristics: The frequency domain bandwidth level of the reference signal is divided into multiple frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, and a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level.

24. The method according to claim 17, characterized in that Also includes: Sending physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries period offset information of the reference signal; The reference signal is received according to period offset information of the reference signal.

25. A reference signal transmission device, characterized in that: include: A determination module, configured to determine whether the frequency domain position occupied by the reference signal satisfies a predetermined condition, wherein the predetermined condition includes: there are non-continuous frequency bands in the frequency domain position occupied by the reference signal, and the union of the frequency bands occupied by the reference signal is less than or equal to the frequency hopping bandwidth; A transmission module, used for transmitting the reference signal at a determined frequency domain position; The frequency hopping bandwidth is a bandwidth determined according to the two frequency domain positions farthest apart among the frequency domain positions occupied by the reference signal or a predetermined bandwidth obtained by receiving a first signaling message, wherein the predetermined bandwidth is a bandwidth corresponding to the frequency hopping configuration range notified in the first signaling message; One of the frequency bands is a physical resource block PRB; When there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: When the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal is a fixed value; when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level; Among them, a frequency domain bandwidth with a frequency domain bandwidth level of level N-1 includes one or more frequency domain bandwidths with a frequency domain bandwidth level of level N, and there are one or more frequency domain bandwidths under a frequency domain bandwidth level, and the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level is a set of indexes of all frequency domain bandwidths with a frequency domain bandwidth level of level N included in a frequency domain bandwidth with a frequency domain bandwidth level of level N-1; wherein N is an integer greater than or equal to 1.

26. The device according to claim 25, characterized in that The frequency domain position occupied by the reference signal has a non-continuous frequency band including: In a frequency hopping cycle, the frequency domain position occupied by the reference signal has a non-continuous frequency band; The frequency domain position occupied by the reference signal in a frequency hopping manner has non-continuous frequency bands.

27. The device according to claim 26, characterized in that The frequency hopping period satisfies at least one of the following characteristics: In different frequency hopping cycles, the frequency domain position occupied by the reference signal has repeated frequency bands; In different frequency hopping cycles, the frequency domain position occupied by the reference signal is the same; There is a corresponding relationship between the relationship items in the first mapping relationship and the relationship items in the second mapping relationship, wherein the first mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the first frequency hopping period and the time domain parameters, and the second mapping relationship is a mapping relationship between the frequency domain position occupied by the reference signal in the second frequency hopping period and the time domain parameters.

28. The device according to claim 25, characterized in that The predetermined conditions also include: The frequency domain positions occupied by the reference signals in a frequency hopping manner are distributed at equal intervals on the frequency hopping bandwidth.

29. The device according to claim 25, further characterized in that: In the case that there are multiple levels of frequency domain bandwidth of the reference signal, the frequency domain bandwidth index corresponding to the reference signal satisfies the following conditions: when the frequency domain bandwidth level does not belong to the frequency hopping bandwidth level set of the reference signal, the frequency domain bandwidth index corresponding to the reference signal changes with time and the frequency domain bandwidth index set corresponding to the reference signal is a true subset of the frequency domain bandwidth index set corresponding to the frequency domain bandwidth level.

30. The device according to claim 25, characterized in that In the case where the reference signal frequency domain bandwidth is multi-level, the method further includes: A second signaling message is transmitted, wherein the second signaling message includes at least one of the following information: a set of frequency domain bandwidth indexes for the reference signal hopping in each level of frequency domain bandwidth level, and a set of frequency domain bandwidth indexes for the reference signal hopping in a frequency hopping bandwidth level set; wherein a frequency domain bandwidth with a frequency domain bandwidth level of the N-1th level includes one or more frequency domain bandwidths with a frequency domain bandwidth level of the Nth level, and there are one or more frequency domain bandwidths under one frequency domain bandwidth level, wherein N is an integer greater than or equal to 1.

31. The device according to claim 25, characterized in that When the reference signal frequency domain bandwidth is multi-level, the reference signal satisfies at least one of the following characteristics: The frequency domain bandwidth level of the reference signal is divided into multiple frequency domain bandwidth level groups, wherein different frequency domain bandwidth level groups correspond to different relationships, wherein the relationship includes at least one of the following: a mapping relationship between a frequency domain bandwidth index corresponding to the reference signal and a time domain parameter, and a relationship between a frequency domain bandwidth index set corresponding to the reference signal in a frequency domain bandwidth level and all frequency domain bandwidth index sets corresponding to the frequency domain bandwidth level.

32. The device according to claim 25, characterized in that Also includes: Transmitting physical layer dynamic control signaling; wherein the physical layer dynamic control signaling carries period offset information of the reference signal; The reference signal is transmitted according to the period offset information of the reference signal.

33. The device according to any one of claims 25 to 32, characterized in that The transmission includes sending or receiving.

34. A terminal, characterized in that: The method comprises a processor, wherein the processor is used to run a program, wherein the reference signal sending method according to any one of claims 1 to 16 is executed when the program is run.

35. A base station, characterized in that: The method comprises a processor, wherein the processor is used to run a program, wherein the program, when running, executes the reference signal receiving method according to any one of claims 17 to 24.

36. A storage medium, characterized in that The storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 24 when executed.

37. A processor, characterized in that: The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 24 when running.

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