A resource mapping method, a sending end and a receiving end

Abstract

The embodiment of the present application discloses a resource mapping method, which can determine the density of reference signals in frequency domain and time domain according to information such as subcarrier spacing configuration parameters, so that the density of the reference signals can still match the coherent bandwidth and coherent time of the corresponding channel after considering that the system works at different frequencies with different subcarrier spacings, and meets the requirements of the communication system. The method comprises the following steps: a sending end acquires at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported mobile speed and scheduled bandwidth information; the sending end determines the time-frequency resource position of mapping the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported mobile speed and the scheduled bandwidth information; and the sending end maps the reference signal at the time-frequency resource position.

Description

[0001] This application is a divisional application of the original application with the application number 201680088063.4 and the original filing date of September 23, 2016, and the entire contents of the original application are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and in particular to a resource mapping method, a transmitting end and a receiving end. BACKGROUND

[0003] In the future 5G system, full-band access will be implemented (including existing 6GHz below frequency band, and 6GHz above frequency band, up to 100GHz millimeter wave frequency band), and the non-idealities in the hardware will introduce phase noise in the 6GHz above frequency band, especially in the millimeter wave frequency band, and the phase noise will cause OFDM (Orthogonal Frequency-Division Multiplexing) system inter-carrier interference (ICI), which greatly reduces the system communication quality. To eliminate ICI, the most practical method is to expand the subcarrier spacing. Therefore, in the future 5G system, different subcarrier spacing configurations are adopted, so that when the system works in the high frequency band, OFDM configuration parameters with larger subcarrier spacing will be used; on the contrary, when the system works in the low frequency band, OFDM configuration parameters with smaller subcarrier spacing will be used.

[0004] In a communication system, in order to ensure that the receiver can correctly demodulate the signal, some reference signals need to be inserted while transmitting data to assist the receiver to correctly estimate the channel information, and use the estimated channel information to equalize the channel effect on the received data and improve the receiving effect of the receiver. The insertion interval of the reference signal in the frequency domain should match the coherence bandwidth of the channel, and in the time domain, it should match the coherence time of the channel.

[0005] Since the future 5G system will work at different frequencies and will use different subcarrier spacing configurations, if the fixed mapping method is still used in the high and low frequency systems, the density of the reference signal will be too small or too dense. Therefore, according to the received reference information to estimate the channel, the equivalent channel parameters obtained are not accurate enough. SUMMARY

[0006] The embodiment of the present application provides a resource mapping method, a sending end and a receiving end, which are used for the sending end to determine the density of reference signals in the frequency domain and the time domain according to information such as the configuration parameter of the subcarrier spacing, so that the density of the reference signals can still match the coherent bandwidth and the coherent time of the corresponding channel after considering that the system works at different frequencies and uses different subcarrier spacings, the reference signals are mapped or received, and the transceiving requirement of the communication system is met.

[0007] In the future 5G system, different subcarrier spacings can be used in different frequencies, and if a fixed mapping method is used in the high-frequency and low-frequency systems, the density of the reference signals is too small or too dense, and the embodiment of the present application is used to solve the problem. The present application is mainly applicable to a communication system, including a sending end and a receiving end, the network elements related to the sending end can include a base station, a wireless access point and user equipment UE, and the network elements related to the receiving end can include user equipment, a terminal, a mobile station (MS) or a base station.

[0008] The first aspect of the embodiment of the present application provides a resource mapping method, which can include that the sending end first determines the scheduled time-frequency resource, the sending end can obtain the related information of the scheduled time-frequency resource, which can include but is not limited to the configuration parameter information of the subcarrier spacing, the frequency information of the current system working, the supported moving speed of the current system and the bandwidth information of the scheduling, and other information; the sending end can further determine the resource position of the time domain / frequency domain of the mapped reference signals according to at least one of the configuration parameter information of the subcarrier spacing, the frequency information of the current working, the supported moving speed of the current and the bandwidth information of the scheduling; the sending end maps the reference signals in the resource position of the time domain / frequency domain; further, the sending end transmits the reference signals to the receiving end.

[0009] In the embodiment of the present application, the sending end determines the resource position of the time domain / frequency domain of the mapped reference signals, maps the reference signals in the resource position of the time domain / frequency domain, and determines the density of the transmitted reference signals, and the density of the reference signals in the frequency domain and the time domain can be determined according to the information in the configuration parameter of the subcarrier spacing. Therefore, the density of the reference signals in the frequency domain and the time domain can be changed, so that the density of the reference signals can still match the coherent bandwidth and the coherent time of the corresponding channel after considering that the system works at different frequencies and uses different subcarrier spacings, the reference signals are mapped or received, and the transceiving requirement of the communication system is met.

[0010] In combination with the first aspect of the embodiment of the present application, in the first implementation manner of the first aspect of the embodiment of the present application, the sending end determines the resource position of the time domain / frequency domain of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, which can include: the sending end determines the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information; and the sending end determines the resource position of the time domain / frequency domain of the mapped reference signal according to the interval of the reference signal.

[0011] In the embodiment of the present application, the sending end can determine the interval of the reference signal according to the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, and the like, where the interval of the reference signal is an embodiment of the reference signal density. The interval of the reference signal can include the interval in the time dimension and the interval in the frequency dimension. Then, the resource position of the time domain / frequency domain of the mapped reference signal is determined according to the determined interval of the reference signal.

[0012] In combination with the first aspect of the embodiment of the present application, in the second implementation manner of the first aspect of the embodiment of the present application, the sending end determines the resource position of the time domain / frequency domain of the transmitted reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, which can include: the sending end determines the resource position of the time domain / frequency domain of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, and according to a preset rule, it should be understood that the preset rule is known by the sending end and the receiving end in advance.

[0013] In the embodiment of the present application, the sending end determines the resource position of the time domain / frequency domain of the transmitted reference signal according to the preset rule, which belongs to static configuration. The sending end configures the resource position of the time domain / frequency domain of the mapped reference signal according to the preset rule, and the receiving end also configures the resource position of the time domain / frequency domain of the received reference signal according to the preset rule. The preset rule is a rule known by the sending end and the receiving end in advance, which provides an optional implementation manner for the embodiment of the present application.

[0014] In combination with the first aspect of the embodiment of the present application, any one of the first to second implementation manners of the first aspect of the embodiment of the present application, in the third implementation manner of the first aspect of the embodiment of the present application, the resource position of the time domain / frequency domain of the mapped reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the orthogonal frequency division multiplexing (OFDM) symbol number of the reference signal.

[0015] The sending end determines the resource position of the time domain / frequency domain of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, which can include the following cases:

[0016] (1) The sending end determines the subcarrier number k of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value;

[0017] (2) The sending end determines the OFDM symbol number l of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value;

[0018] (3) The sending end determines the subcarrier number k and the OFDM symbol number l of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information.

[0019] In the embodiment of the present application, if the resource position of the time domain / frequency domain is represented by (k, l), k is the subcarrier number of the reference signal, and l is the OFDM symbol number of the reference signal; then, the sending end can determine the subcarrier number k and the OFDM symbol number l of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information; or determine the subcarrier number k of the mapped reference signal, and the OFDM symbol number l is a fixed value; or determine the OFDM symbol number l of the mapped reference signal, wherein the subcarrier number k is a fixed value. Further, the implementation of the resource position of the time domain / frequency domain of the mapped reference signal is provided.

[0020] In the fourth implementation of the first aspect of the embodiment of the present application, the method can further include: if the sending end includes a base station, the sending end sends the configuration information of the reference signal position to the receiving end; or if the sending end includes a user equipment, the sending end receives the configuration information of the reference signal position, and determines the resource position of the time domain / frequency domain of the mapped reference signal according to the configuration information of the reference signal position.

[0021] The second aspect of the embodiment of the present application provides a resource mapping method, which can include: a receiving end determining a scheduled time-frequency resource, the receiving end obtaining relevant information of the scheduled time-frequency resource, including but not limited to subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information and the like; the receiving end can determine a time / frequency domain resource position of a received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information; and the receiving end receives a reference signal transmitted by a sending end at the time / frequency domain resource position.

[0022] In the embodiment of the present application, the time / frequency domain resource position of the received reference signal determined by the receiving end is actually the density of the received reference signal, which can be determined according to the information including the subcarrier spacing configuration parameter, the density of the reference signal in the frequency domain and the time domain. Therefore, the density of the reference signal in the frequency domain and the time domain can be changed, so that the density of the reference signal can still match the coherence bandwidth and the coherence time of the corresponding channel after considering that the system works at different frequencies with different subcarrier spacings, and the requirements of the communication system for receiving and transmitting can be met.

[0023] In combination with the second aspect of the embodiment of the present application, in the first implementation manner of the second aspect of the embodiment of the present application, the receiving end can determine the time / frequency domain resource position of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information, which can include: the receiving end determines the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information; and the receiving end determines the time / frequency domain resource position of the received reference signal according to the interval of the reference signal.

[0024] In the embodiment of the present application, the receiving end can determine the interval of the reference signal according to the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information and the like, and the interval of the reference signal is the embodiment of the density of the reference signal. The interval of the reference signal can include the interval in the time dimension and the interval in the frequency dimension. The time / frequency domain resource position of the received reference signal is determined according to the determined interval of the reference signal.

[0025] In combination with the second aspect of the embodiment of the present application, in the second implementation manner of the second aspect of the embodiment of the present application, the receiving end determines the resource position of the time domain / frequency domain of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, comprising: the receiving end determines the resource position of the time domain / frequency domain of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, and according to a preset rule, it should be understood that the preset rule is known by the sending end and the receiving end.

[0026] In the embodiment of the present application, the receiving end determines the resource position of the time domain / frequency domain of the received reference signal according to a preset rule, which belongs to static configuration, the receiving end configures the resource position of the time domain / frequency domain of the received reference signal according to the preset rule, and the sending end also configures the resource position of the time domain / frequency domain of the transmitted reference signal according to the preset rule. The preset rule is known by the sending end and the receiving end, which provides an optional implementation manner for the embodiment of the present application.

[0027] In combination with the second aspect of the embodiment of the present application, in the second implementation manner of the second aspect of the embodiment of the present application, the receiving end determines the resource position of the time domain / frequency domain of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, comprising: the receiving end determines the resource position of the time domain / frequency domain of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, and according to a preset rule, it should be understood that the preset rule is known by the sending end and the receiving end.

[0028] (1) the receiving end determines the subcarrier number k of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value;

[0029] (2) the receiving end determines the OFDM symbol number l of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value;

[0030] (3) the receiving end determines the subcarrier number k and the OFDM symbol number l of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information.

[0031] In the embodiments of the present application, if the resource position in time domain / frequency domain is represented by (k, l), k is the subcarrier number of the reference signal, and l is the orthogonal frequency division multiplexing (OFDM) symbol number of the reference signal; then, the receiving end can determine the subcarrier number k and the OFDM symbol number l of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information; or determine the subcarrier number k of the received reference signal, and the OFDM symbol number l is a fixed value; or determine the OFDM symbol number l of the received reference signal, and the subcarrier number k is a fixed value. Further, an implementation of the resource position in time domain / frequency domain of the received reference signal is provided.

[0032] In the fourth implementation of the second aspect of the embodiments of the present application, the method can further include: if the receiving end includes a base station, the receiving end sends the configuration information of the reference signal position to the sending end, the configuration information of the reference signal position being used by the sending end to determine the resource position in time domain / frequency domain of the mapped reference signal; or if the receiving end includes a user equipment, the receiving end receives the configuration information of the reference signal position sent by the sending end, and determines the resource position in time domain / frequency domain of the received reference signal according to the configuration information of the reference signal position.

[0033] The third aspect of the embodiments of the present application provides a sending end, which has a function of determining the time-frequency resource position of the mapped reference signal corresponding to the implementation of the first aspect described above. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above function.

[0034] The fourth aspect of the embodiments of the present application provides a receiving end, which has a function of determining the time-frequency resource position of the received reference signal corresponding to the implementation of the second aspect described above. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above function.

[0035] The fifth aspect of the embodiments of the present application provides a sending end, which can include a transceiver, a processor, a memory, and a bus, the transceiver, the processor, and the memory being connected through the bus;

[0036] The memory is used to store operation instructions;

[0037] The processor is configured to acquire at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed, and scheduled bandwidth information; and determine a time-frequency resource position of a reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information.

[0038] The transceiver is configured to map the reference signal at the time-frequency resource position.

[0039] The sixth aspect of the embodiment of the present application provides a receiving end, which can include a transceiver, a processor, a memory, and a bus, the transceiver, the processor, and the memory being connected through the bus.

[0040] The memory is configured to store operation instructions.

[0041] The processor is configured to acquire at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed, and scheduled bandwidth information; and determine a time-frequency resource position of a reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information.

[0042] The transceiver is configured to receive the reference signal transmitted by the sending end at the time-frequency resource position.

[0043] The seventh aspect of the embodiment of the present application provides a storage medium, and it needs to be noted that the technical solution of the present application, essentially or the part of the prior art that contributes to the technical solution or the whole or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, and is used for storing computer software instructions for the above-mentioned device, and contains a program designed for the receiving end or the sending end for executing the first aspect, the second aspect, or the third aspect or the fourth aspect.

[0044] The storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0045] In the technical solution provided by the embodiment of the present application, the embodiment of the present application has the following advantages:

[0046] In the embodiment of the present application, the sending end acquires at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information; the sending end determines time-frequency resource position of mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information; and the sending end maps the reference signal at the time-frequency resource position. Then, the sending end determines the density of the reference signal in the frequency domain and the time domain according to the subcarrier spacing configuration parameter information, so that the density of the reference signal can still match the coherence bandwidth and the coherence time of the corresponding channel after considering that the system works at different frequencies with different subcarrier spacings, the reference signal is mapped, and the transceiving requirement of the communication system is met. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 An embodiment diagram of inserting a reference signal in the embodiment of the present application;

[0048] Figure 2 An embodiment diagram of a scenario applied in the embodiment of the present application;

[0049] Figure 3 An embodiment diagram of a resource mapping method in the embodiment of the present application;

[0050] Figure 4 Another embodiment diagram of a resource mapping method in the embodiment of the present application;

[0051] Figure 5 Another embodiment diagram of a resource mapping method in the embodiment of the present application;

[0052] Figure 6 Another embodiment diagram of a resource mapping method in the embodiment of the present application;

[0053] Figure 7 An embodiment diagram of a sending end in the embodiment of the present application;

[0054] Figure 8 An embodiment diagram of a receiving end in the embodiment of the present application;

[0055] Figure 9 An embodiment diagram of a base station in the embodiment of the present application;

[0056] Figure 10 An embodiment diagram of user equipment in the embodiment of the present application. DETAILED DESCRIPTION

[0057] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0058] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present application and above drawings, if any, are used for distinguishing between similar objects, and do not necessarily have a particular order or sequence. It should be understood that the data thus used are interchangeable under appropriate circumstances so that the embodiments described herein can operate in other sequences than those illustrated or described herein. Moreover, the terms "comprise", "have" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, article, or apparatus that comprises a list of steps or units not necessarily limited to those specifically listed, but can include other not expressly listed steps or units, or additional steps or units inherent to such process, method, article, or apparatus.

[0059] In the prior art, taking the existing long term evolution (LTE) system as an example, the LTE works in a low frequency band (within 3 GHz, the spectrum of each operator may be different), the subcarrier spacing is 15 KHz, each subframe contains 14 OFDM symbols, and the time length of one subframe is 1 ms. As shown in the reference signal insertion Figure 1 , one reference signal R5 is placed on every 4 equally spaced OFDM symbols in one subframe, that is, in the data part (in the LTE, the first 3 OFDM symbols of each subframe are used for transmitting a control channel, and the reception of the control channel is based on a common pilot (CRS, Cell Reference Signal)), a reference signal is inserted every 2 OFDM symbols in time; in frequency, a reference signal is inserted every three subcarriers.

[0060] OFDM (Orthogonal frequency-division multiplexing, orthogonal frequency division multiplexing) can be divided into wideband channel into flat fading sub-channel, can effectively against the frequency selective fading in wideband channel, so that the system obtains very high spectral efficiency. OFDM is the most mainstream multiplexing way in the current communication system, the future 5G system will also use OFDM or based on OFDM improvement scheme as multiplexing way. In the future 5G system, work in different frequencies, then can adopt different subcarrier spacing configuration, if the high and low frequency system uses fixed mapping method, will cause the density of reference signal is too small or too dense. For example, high and low frequency all use Figure 1 Method, then in the low frequency system, there is no big problem, but in the high frequency system, due to the use of larger subcarrier spacing, at this time, the interval of reference signal will be large, for example, in the high frequency system, with subcarrier spacing 120KHz as an example, at this time, the interval of reference signal in frequency domain is 8 times of the original LTE system, since the high frequency channel still has certain frequency selectivity, then cause the reference signal in frequency domain is too sparse; And the interval of reference signal in time, only 1 / 8 of the LTE system. Because it is generally believed that high frequency system is mainly used for low speed scene, the speed supported is much lower than that of low frequency system, so it will cause the interval of reference signal in time is too dense.

[0061] The scene diagram applied by the embodiment of the present application is as shown in Figure 2 The present application is mainly applicable to communication system, including sending end and receiving end, it should be understood that Figure 2 Only one of the scenarios of the application is shown. Transmission between the sending end and the receiving end can be transmitted by radio waves, or can be transmitted by visible light, laser, infrared, optical fiber and other transmission media. The network elements involved in the sending end can include base stations, wireless access points, user equipment (UE), and the network elements involved in the receiving end can include user equipment, terminals, mobile stations (MS) or base stations, etc. In a preferred embodiment, the sending end is a base station and the receiving end is user equipment; or the sending end is user equipment and the receiving end is a base station.

[0062] In this invention, the base station determines the interval of the reference signal in the frequency and time domains based on the configuration parameters of the determined OFDM subcarrier intervals and / or the current operating frequency and / or the currently supported mobile speed, and maps the reference signal onto the corresponding time-frequency resources scheduled for the current UE according to the aforementioned intervals. The UE determines the interval of the reference signal in the frequency and time domains based on the configuration parameters of the OFDM subcarrier intervals and / or the current operating frequency and / or the currently supported mobile speed, and receives the reference signal on the corresponding time-frequency resources within the time-frequency resource range specified by the base station according to the aforementioned intervals. Compared with the prior art, the reference signal resource mapping method provided by this invention enables the reference signal density to flexibly adapt to the problem of mismatch between the reference signal density and the correlation bandwidth and coherence time of the channel at the corresponding operating frequency due to the different OFDM symbol lengths caused by different system operating frequencies.

[0063] The technical solution of the present invention will be further described below by way of embodiments, such as... Figure 3 The diagram shown is a schematic representation of an embodiment of the resource mapping method of the present invention. Here, the example uses a UE as the sending end and a base station as the receiving end, illustrating the uplink transmission and reception process in LTE communication, including:

[0064] 301. The base station determines the time and frequency resources for which user equipment is scheduled;

[0065] 302. The base station sends uplink scheduling signaling to the user equipment. The uplink scheduling signaling includes the time and frequency resources to be scheduled.

[0066] This step may include step a and step b, as shown below:

[0067] a. The base station sends uplink scheduling signaling to the user equipment, and the uplink scheduling signaling includes the time and frequency resources to be scheduled;

[0068] b. The user equipment receives uplink scheduling signaling sent by the base station, which includes the scheduled time and frequency resources;

[0069] In this embodiment of the invention, the base station determines the time and frequency resources to be scheduled for the user equipment; the base station sends uplink scheduling signaling to the user equipment, the uplink scheduling signaling including the scheduled time and frequency resources; the user equipment receives the uplink scheduling signaling sent by the base station, the uplink scheduling signaling including the scheduled time and frequency resources.

[0070] 303. The user equipment obtains at least one of the following: subcarrier spacing configuration parameters, current operating frequency information, currently supported mobile speed, and scheduled bandwidth information;

[0071] In the embodiment of the present application, the user equipment receives uplink scheduling signaling sent by the base station, and acquires at least one of the following: scheduled time-frequency resource and subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed, and scheduled bandwidth information. The subcarrier spacing configuration parameter information can include OFDM symbol number of the scheduled time-frequency resource, and / or subframe number, and / or subcarrier number, and / or subband number, and the like.

[0072] 304. The user equipment determines the time-frequency resource position of the mapped reference signal according to at least one of the following: the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information.

[0073] In the embodiment of the present application, the user equipment determines the time-frequency resource position of the mapped reference signal according to at least one of the following: the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information. After determining the time-frequency resource position of the mapped reference signal, the user equipment maps the reference signal on the time-frequency resource position, and maps data on other resources within the scheduled time-frequency resource range.

[0074] Specifically, it can include:

[0075] (1) The user equipment determines the interval of the reference signal according to at least one of the following: the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information. The user equipment determines the time-frequency resource position of the mapped reference signal according to the interval of the reference signal.

[0076] (2) The time-frequency resource position of the mapped reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the OFDM symbol number of the reference signal.

[0077] ① The user equipment determines the subcarrier number k of the mapped reference signal according to at least one of the following: the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value.

[0078] Or,

[0079] ② The user equipment determines the OFDM symbol number l of the mapped reference signal according to at least one of the following: the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value.

[0080] Or,

[0081] The user equipment determines the subcarrier number k and the OFDM symbol number I of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information.

[0082] In the embodiment of the present application, the interval of the reference signal can be the interval in time dimension or the interval in frequency dimension, which will be described respectively as follows:

[0083] A: the interval in time dimension: it can be in units of subframe, time slot or OFDM symbol. The time slot and the subframe are composed of a plurality of OFDM symbols, for example, in LTE, one subframe contains 14 OFDM symbols and one time slot contains 7 OFDM symbols, that is, one subframe contains 2 time slots.

[0084] For example, if the subcarrier spacing is 15*2 n KHz, the interval in time dimension can be 3*2 n OFDM symbols if taking OFDM symbol as an example, or 2 n-2 subframes if taking subframe as an example. It should be noted that when the number of subframes in the interval is a fraction, it means that one subframe contains a plurality of resources for transmitting the reference signal.

[0085] In addition, it should be understood that the interval of the reference signal can also be determined according to the subcarrier spacing, the working frequency, the supported moving speed and / or the scheduled bandwidth information, etc. Taking OFDM symbol as an example, an example of a table is given as shown in Table 1. For the same working frequency, different moving speeds are determined according to the actual working scene, for example, 3km / h corresponds to the downlink access, and 1km / h corresponds to the scene of the backhaul link.

[0086]

[0087] Table 1

[0088] B: the interval in frequency dimension: it can be in units of subcarrier or subband. The subband is composed of a plurality of continuous subcarriers.

[0089] Further, according to the interval in time dimension or the interval in frequency dimension obtained above, how to obtain the time-frequency resource position of the reference signal in the embodiment of the present application will be described as follows:

[0090] 1) the interval of the reference signal includes the interval in time dimension;

[0091] ① The unit of the interval in the time dimension is OFDM symbol, and the subcarrier interval configuration parameter information includes the OFDM symbol number of the scheduled time-frequency resource;

[0092] That is, in the time domain, when the interval is OFDM symbol, the modulo method can be used to determine:

[0093] mod(n, N) = a (1)

[0094] Where n is the OFDM symbol number of the scheduled time-frequency resource, N represents the above determined interval in the time dimension, a is a preset value, and the value range is 0≤a

[0095] ② When the interval in the time dimension is subframe, the subcarrier interval configuration parameter information includes the subframe number of the scheduled time-frequency resource;

[0096] Still use formula (1), but n is the subframe number of the scheduled time-frequency resource, after determining the value that satisfies formula (1) in all n, further determine l as:

[0097] l = {(n-1) x L + l1, (n-1) x L + l2,..., (n-1) x L + l A} (2)

[0098] Where L represents the number of OFDM symbols contained in each subframe, and A represents the number of reference signals contained in each subframe containing reference signals in the time dimension; It should be understood that here l is a set, where l1, l2...l A are a series of preset values.

[0099] 2) The interval of the reference signal includes the interval in the frequency dimension;

[0100] ① The unit of the interval in the frequency dimension is subcarrier, and the subcarrier interval configuration parameter information includes the subcarrier number of the scheduled time-frequency resource;

[0101] In the frequency domain, when the interval in the frequency dimension is subcarrier, the modulo method as formula (1) can be used to determine:

[0102] mod(m, M) = b (3)

[0103] Where m is the subcarrier number of the scheduled time-frequency resource, M represents the above determined interval in the frequency dimension, b is a preset value, and the value range is 0≤b

[0104] When the interval of the frequency dimension is in units of subbands, the subcarrier spacing configuration parameter information includes the subband number of the scheduled time-frequency resource;

[0105] Still, formula (3) can be used, but m is the subband number of the scheduled time-frequency resource. After the values satisfying formula (3) are determined among all m, k is further determined as:

[0106] k = {(m-1) x K + k1, (m-1) x K + k2,..., (m-1) x K + k B} (4)

[0107] K represents the number of subcarriers contained in each subband, and B represents the number of reference signals contained in each reference signal subband in the frequency dimension; it should be understood that k here is a set, wherein k1, k2,..., k B are a series of preset values.

[0108] (3) The user equipment determines the time-frequency resource position of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information, and according to a preset rule.

[0109] For example, in the prior art, the subcarrier spacing of the LTE system is 15KHz, each subframe contains 14 OFDM symbols, and the duration of one subframe is 1ms. Then, the reference signal will be placed on 4 equally spaced OFDM symbols in one subframe. In the 5G, 6G, etc. communication system, if the subcarrier spacing is 120KHz, then 120KHz is 8 times of 15KHz. If a fixed mapping method is used, then the interval of the reference signal in the frequency domain is 8 times of the original LTE system, resulting in that the reference signal is too sparse in the frequency domain; and the interval of the reference signal in time is only 1 / 8 of the LTE system, resulting in that the interval of the reference signal in time is too dense. In frequency, a reference signal is inserted every three subcarriers; in time, a reference signal is inserted every 2 OFDM symbols, which can be referred to Table 1.

[0110] In the embodiment of the application, a preset rule can be used to determine the time-frequency resource position of the mapped reference signal (using static configuration). That is, when the subcarrier spacing is 120KHz, in frequency, a reference signal can be inserted every 3*8 = 24 subcarriers, and in time, a reference signal can be inserted every 2 / 8 = 0.25 OFDM symbols, that is, this is the determined time-frequency resource position of the mapped reference signal.

[0111] 305、The base station acquires at least one of subcarrier spacing configuration parameter information, currently working frequency information, currently supported moving speed, and scheduled bandwidth information;

[0112] In the embodiments of the present application, the base station acquires at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information. The subcarrier spacing configuration parameter information herein can include OFDM symbol number of scheduled time-frequency resource, and / or subframe number, and / or subcarrier number, and / or subband number and the like.

[0113] 306、The base station determines time-frequency resource positions of receiving reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information;

[0114] In the embodiments of the present application, the base station determines time-frequency resource positions of receiving reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information, and receives reference signals at the positions. Specifically, it can include:

[0115] (1) The base station determines interval of reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information, and determines time-frequency resource positions of receiving reference signals according to the interval of reference signals.

[0116] (2) The time-frequency resource positions of receiving reference signals are represented by (k, l), k is subcarrier number of reference signals, and l is OFDM symbol number of reference signals.

[0117] ① The base station determines subcarrier number k of mapping reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information, wherein OFDM symbol number l is a first preset value (i.e. l is a fixed value).

[0118] Or,

[0119] ② The base station determines OFDM symbol number l of mapping reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information, wherein subcarrier number k is a second preset value (i.e. k is a fixed value).

[0120] Or,

[0121] ③ The base station determines subcarrier number k and OFDM symbol number l of mapping reference signals according to at least one of subcarrier spacing configuration parameter information, current working frequency information, current supported moving speed and scheduled bandwidth information.

[0122] (3) The base station determines the time-frequency resource position of the mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information, and according to a preset rule.

[0123] It should be noted that the detailed process of determining the time-frequency resource position of the received reference signal can refer to step 304, and is similar to the determination of the time-frequency resource position of the mapping reference signal, which will not be repeated here. The timing of the user equipment determining the time-frequency resource position of the mapping reference signal and the base station determining the time-frequency resource position of the received reference signal is not specifically limited.

[0124] 307. The user equipment transmits the reference signal to the base station;

[0125] In the embodiment of the application, the step can include steps c and d, as follows:

[0126] c. The user equipment maps the reference signal at the time-frequency resource position;

[0127] In the embodiment of the application, the user equipment maps the reference signal at the time-frequency resource position, and maps data on other resources within the scheduled time-frequency resource range, and further, the user equipment transmits the reference signal and the data to the base station after mapping.

[0128] d. The base station receives the reference signal transmitted by the user equipment at the time-frequency resource position.

[0129] In the embodiment of the application, the base station receives the reference signal transmitted by the user equipment at the time-frequency resource position determined for receiving the reference signal, and receives data transmitted on other resources within the scheduled time-frequency resource range.

[0130] 308. The base station performs channel estimation according to the received reference signal.

[0131] In the embodiment of the application, the base station performs channel estimation according to the received reference signal, and performs receiving demodulation on data on other resources within the scheduled time-frequency resource range based on the estimated channel state information.

[0132] Compared with the prior art, the reference signal resource mapping method provided by the embodiment of the present application can adapt the density of the reference signal to the problem of mismatch between the density of the reference signal and the coherence bandwidth and coherence time of the corresponding channel caused by the different OFDM symbol lengths due to different system operating frequencies. The improvement over the prior art is that in the prior art, when the system is designed, full-band access is not considered, a unique fixed operating frequency is assumed, and a subcarrier spacing is selected based on the operating frequency and the hardware level and channel scenario. In this way, the density of the reference signal in the frequency domain and the time domain is fixed. In the embodiment of the present application, the process of uplink scheduling is shown, and the density of the reference signal in the frequency domain and the time domain can be changed. The density of the reference signal in the frequency domain and the time domain can be determined according to the information including the subcarrier spacing configuration parameter, so that the density of the reference signal can still match the coherence bandwidth and the coherence time of the corresponding channel after considering that the system operates at different frequencies and uses different subcarrier spacings, thereby meeting the requirements of the communication system for receiving and transmitting.

[0133] As shown in Figure 4 , it is another embodiment schematic diagram of the resource mapping method in the embodiment of the present application, which is described by taking the sending end as the UE and the receiving end as the base station as an example, that is, the process of uplink transmission in the LTE communication process, including:

[0134] 401. The base station determines the time-frequency resources scheduled for the user equipment;

[0135] 402. The base station sends uplink scheduling signaling to the user equipment, and the uplink scheduling signaling includes the scheduled time-frequency resources;

[0136] 403. The base station acquires at least one of the subcarrier spacing configuration parameter information, the current operating frequency information, the currently supported moving speed, and the scheduled bandwidth information;

[0137] 404. The base station determines the time-frequency resource position of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current operating frequency information, the currently supported moving speed, and the scheduled bandwidth information;

[0138] In the embodiment of the present application, steps 401 and 402 are the same as steps 301 and 302, and steps 403-404 are the same as steps 305-306, which will not be described here.

[0139] 405. The base station sends the configuration information of the reference signal position to the user equipment;

[0140] In the embodiment of the present application, this step can include steps e and f, as shown below:

[0141] e、 the base station sends configuration information of the reference signal position to the user equipment;

[0142] In the embodiment of the present application, the base station first determines the configuration information of the reference signal position, and then sends the configuration information of the reference signal position to the user equipment. The related information of the configuration information of the reference signal position can be the interval of the reference signal in time and / or frequency. When the time interval is in units of subframes or time slots, and the frequency interval is in units of subbands, the related information can further include the offset in units of OFDM symbols in time and the offset in units of subcarriers in frequency.

[0143] f、 the user equipment receives the configuration information of the reference signal position;

[0144] In the embodiment of the present application, the user equipment receives the configuration information of the reference signal position. The related information of the configuration information of the reference signal position can be the interval of the reference signal in time and / or frequency. When the time interval is in units of subframes or time slots, and the frequency interval is in units of subbands, the related information can further include the offset in units of OFDM symbols in time and the offset in units of subcarriers in frequency.

[0145] 406、 the user equipment determines the time-frequency resource position of the mapped reference signal according to the configuration information of the reference signal position;

[0146] In the embodiment of the present application, the user equipment determines the time-frequency resource position of the mapped reference signal according to the configuration information of the reference signal position. The user equipment maps the reference signal on the time-frequency resource position. The specific determination method can refer to the formula (1)-formula (4) in step 304 in the embodiment shown in Figure 3

[0147] 407、 the user equipment transmits the reference signal to the base station;

[0148] In the embodiment of the present application, the step includes steps g and h, as shown below:

[0149] g、 the user equipment transmits the reference signal to the base station;

[0150] In the embodiment of the present application, after the user equipment determines the time-frequency resource position of the mapped reference signal, the user equipment transmits the reference signal to the base station on the time-frequency resource position, and transmits data on other resources within the scheduled time-frequency resource range.

[0151] h、 the base station receives the reference signal transmitted by the user equipment according to the determined time-frequency resource position of the received reference signal;

[0152] ​In this embodiment of the invention, the base station receives the reference signal sent by the user equipment at the time-frequency resource location where the reference signal is determined, and also receives data transmitted on other resources within the time-frequency resource range.

[0153] 408. The base station performs channel estimation based on the received reference signal.

[0154] In this embodiment of the invention, step 408 and Figure 3 Step 308 in the illustrated embodiment is the same and will not be repeated here.

[0155] In this embodiment of the invention, which is a semi-static or dynamic configuration, the base station needs to send the configuration information of the reference signal to the user equipment. The user equipment then determines the time-frequency resource location of the mapped reference signal based on the configuration information of the reference signal. The base station determines that the time-frequency resource location of the received reference signal remains unchanged.

[0156] like Figure 5 The diagram shown is a schematic diagram of another embodiment of the resource mapping method in this invention. Here, the example uses the sending end as the base station and the receiving end as the UE for illustration, specifically the downlink transmission and reception process in LTE communication, including:

[0157] 501. The base station determines the time and frequency resources for which user equipment is scheduled;

[0158] 502. The base station sends downlink scheduling signaling to the user equipment. The downlink scheduling signaling includes the time and frequency resources to be scheduled.

[0159] This step may include step a and step b, as shown below:

[0160] a. The base station sends downlink scheduling signaling to the user equipment, and the downlink scheduling signaling includes the time and frequency resources to be scheduled;

[0161] b. The user equipment receives downlink scheduling signaling sent by the base station, which includes the scheduled time and frequency resources;

[0162] In this embodiment of the invention, the base station first determines the time-frequency resources used by the user equipment (UE) for downlink service. Then, based on the channel state, service request status, and current resource usage of the UEs it serves, the base station completes scheduling, determining the corresponding transmission algorithm and the time-frequency resources used by each UE. The base station sends downlink scheduling signaling to the UE, which includes the scheduled time-frequency resources. The UE receives the downlink scheduling signaling sent by the base station, which also includes the scheduled time-frequency resources.

[0163] 503. The base station obtains at least one of the following: subcarrier spacing configuration parameter information, currently operating frequency information, currently supported mobile speed, and scheduled bandwidth information;

[0164] In the embodiments of the present application, the base station acquires at least one of subcarrier spacing configuration parameter information, current working frequency information, currently supported moving speed and scheduled bandwidth information according to time-frequency resources scheduled for the user equipment; the subcarrier spacing configuration parameter information can include OFDM symbol number of the scheduled time-frequency resources, and / or subframe number, and / or subcarrier number, and / or subband number and the like.

[0165] 504、The base station determines the time-frequency resource position of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed and the scheduled bandwidth information;

[0166] In the embodiments of the present application, the base station determines the time-frequency resource position of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed and the scheduled bandwidth information. After the base station determines the time-frequency resource position of the reference signal, the reference signal is mapped at the time-frequency resource position, and data is mapped at other resources within the scheduled time-frequency resource range.

[0167] Specifically, it can include:

[0168] (1) The base station determines the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed and the scheduled bandwidth information; and the base station determines the time-frequency resource position of the reference signal according to the interval of the reference signal.

[0169] (2) The time-frequency resource position of the reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the OFDM symbol number of the reference signal.

[0170] ① The base station determines the subcarrier number k of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value (i.e. l is a fixed value);

[0171] Or,

[0172] ② The base station determines the OFDM symbol number l of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value (i.e. k is a fixed value);

[0173] Or,

[0174] The base station determines the subcarrier number k and the OFDM symbol number l of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed, and the scheduled bandwidth information.

[0175] In the embodiment of the present application, the interval of the reference signal can be the interval in the time dimension or the interval in the frequency dimension. The interval in the time dimension and the interval in the frequency dimension are described as follows:

[0176] A: The interval in the time dimension can be in units of subframes, time slots, or OFDM symbols. The time slot and the subframe are composed of a plurality of OFDM symbols. For example, in LTE, one subframe contains 14 OFDM symbols, and one time slot contains 7 OFDM symbols, that is, one subframe contains 2 time slots.

[0177] For example, if the subcarrier spacing is 15*2 n KHz, the interval in the time dimension can be 3*2 n OFDM symbols, or the interval in the time dimension can be 2 n-2 subframes. It should be noted that when the number of subframes in the interval is a fraction, it means that one subframe contains a plurality of resources for transmitting and receiving the reference signal.

[0178] In addition, it should be understood that the interval of the reference signal can also be determined according to the subcarrier spacing, the working frequency, the supported moving speed, and / or the scheduled bandwidth information. Here, an example of a table is given in the case of OFDM symbols, as shown in Table 1. For the same working frequency, different moving speeds are determined according to the actual working scenario. For example, 3 km / h corresponds to a downlink access, and 1 km / h corresponds to a backhaul link scenario.

[0179] B: The interval in the frequency dimension can be in units of subcarriers or subbands. The subband is composed of a plurality of subcarriers.

[0180] Further, the interval in the time dimension or the interval in the frequency dimension obtained above can be used to explain how to obtain the time-frequency resource position of the reference signal in the embodiment of the present application.

[0181] 1) The interval of the reference signal includes the interval in the time dimension.

[0182] ① The unit of the interval in the time dimension is the OFDM symbol, and the subcarrier spacing configuration parameter information includes the OFDM symbol number of the scheduled time-frequency resource.

[0183] That is, in the time domain, when the interval is the OFDM symbol, the modulo method can be used to determine:

[0184] mod(n,N)=a (1)

[0185] wherein n is the OFDM symbol number of the scheduled time-frequency resource, N represents the interval of the determined time dimension, a is a preset value, and the value range is 0≤a

[0186] ②When the interval of the time dimension is a subframe, the subcarrier spacing configuration parameter information includes the subframe number of the scheduled time-frequency resource;

[0187] Still using formula (1), only n is the subframe number of the scheduled time-frequency resource, and after the value satisfying formula (1) in all n is determined, l is further determined as:

[0188] l={(n-1)×L+l1,(n-1)×L+l2,...,(n-1)×L+l A} (2)

[0189] wherein L represents the number of OFDM symbols contained in each subframe, and A represents the number of reference signals in the time dimension in each subframe containing reference signals; it should be understood that l here is a set, wherein l1, l2…l A are a series of preset values.

[0190] 2) The interval of the reference signal includes the interval of the frequency dimension;

[0191] ①The unit of the interval of the frequency dimension is a subcarrier, and the subcarrier spacing configuration parameter information includes the subcarrier number of the scheduled time-frequency resource;

[0192] In the frequency domain, when the interval of the frequency dimension is a subcarrier, the modulo method such as formula (1) can be used to determine:

[0193] mod(m,M)=b (3)

[0194] wherein m is the subcarrier number of the scheduled time-frequency resource, M represents the interval of the determined frequency dimension, b is a preset value, and the value range is 0≤b

[0195] ②When the unit of the interval of the frequency dimension is a subband, the subcarrier spacing configuration parameter information includes the subband number of the scheduled time-frequency resource;

[0196] Still formula (3) can be used, only m is the subband number of the scheduled time-frequency resource, and after the value satisfying formula (3) in all m is determined, k is further determined as:

[0197] k = {(m-1) x K + k1, (m-1) x K + k2,..., (m-1) x K + k B} (4)

[0198] wherein K represents the number of subcarriers contained in each subband, B represents the number of reference signals in the frequency dimension contained in each reference signal subband; it should be understood that k here is a set, wherein k1, k2...k B are a series of preset values.

[0199] (3) The base station determines the time-frequency resource position of the mapped reference signal according to at least one of subcarrier spacing configuration parameter information, current working frequency information, currently supported mobile speed and scheduled bandwidth information, and according to a preset rule.

[0200] For example, in the prior art, the subcarrier spacing of the LTE system is 15 KHz, each subframe contains 14 OFDM symbols, and the duration of one subframe is 1 ms. Then, the reference signal will be placed on 4 equally spaced OFDM symbols in one subframe, and in the 5G, 6G and other communication systems, if the subcarrier spacing is 120 KHz, then 120 KHz is 8 times of 15 KHz, if a fixed mapping method is used, then the interval of the reference signal in the frequency domain is 8 times of the original LTE system, resulting in that the reference signal is too sparse in the frequency domain; and the interval of the reference signal in time is only 1 / 8 of the LTE system, which will cause the reference signal to be too dense in time. In frequency, a reference signal is inserted every three subcarriers; in time, a reference signal is inserted every 2 OFDM symbols, which can refer to Table 1 described above.

[0201] In the embodiment of the application, a preset rule can be used to determine the time-frequency resource position of the mapped reference signal (using static configuration). That is, when the subcarrier spacing is 120 KHz, in frequency, a reference signal can be inserted every 3*8 = 24 subcarriers, and in time, a reference signal can be inserted every 2 / 8 = 0.25 OFDM symbols, that is, this is the determined time-frequency resource position of the mapped reference signal.

[0202] 505, the user equipment acquires at least one of subcarrier spacing configuration parameter information, current working frequency information, currently supported mobile speed and scheduled bandwidth information;

[0203] In the embodiment of the present application, the user equipment receives the downlink scheduling signaling sent by the base station, and after the downlink scheduling signaling including the scheduled time-frequency resource, the user equipment acquires at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information. The subcarrier spacing configuration parameter information here can include the OFDM symbol number of the scheduled time-frequency resource, and / or the subframe number, and / or the subcarrier number, and / or the subband number and the like.

[0204] 506、The user equipment determines the time-frequency resource position of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information.

[0205] In the embodiment of the present application, the UE determines the time-frequency resource position of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information.

[0206] It should be understood that when the static configuration is adopted here, the method of determining the time-frequency resource position of the received reference signal by the UE and the method of determining the time-frequency resource position of the transmitted reference signal by the base station are the same, and specifically:

[0207] (1) The user equipment determines the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information; and the user equipment determines the time-frequency resource position of the received reference signal according to the interval of the reference signal.

[0208] (2) The time-frequency resource position of the received reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the OFDM symbol number of the reference signal.

[0209] ① The user equipment determines the subcarrier number k of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value.

[0210] Or,

[0211] ② The user equipment determines the OFDM symbol number l of the received reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the current supported moving speed and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value.

[0212] Or,

[0213] The user equipment determines subcarrier number k and OFDM symbol number l for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0214] The user equipment determines the time-frequency resource position for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information according to a preset rule.

[0215] It should be noted that the detailed process of determining the time-frequency resource position for receiving the reference signal can refer to step 504, and is similar to determining the time-frequency resource position for mapping the reference signal, and thus is not described herein again. The timing sequence of determining the time-frequency resource position for mapping the reference signal by the user equipment and determining the time-frequency resource position for receiving the reference signal by the base station is not specifically limited.

[0216] 507. The base station transmits the reference signal to the user equipment;

[0217] In the embodiment of the application, the step can include steps c and d, as follows:

[0218] c. The base station transmits the reference signal to the user equipment according to the time-frequency resource position;

[0219] In the embodiment of the application, the base station transmits the reference signal to the UE within the time-frequency resource range scheduled by the UE according to the determined time-frequency resource position, and transmits data on other resources in the scheduling range. That is, the base station can map and then transmit the reference signal according to the determined time-frequency resource position (k, l), or can map and then transmit the reference signal according to the density determined according to the preset rule.

[0220] d. The user equipment receives the reference signal transmitted by the base station on the time-frequency resource position;

[0221] In the embodiment of the application, after the user equipment determines the time-frequency resource position for receiving the reference signal, the user equipment receives the reference signal transmitted by the base station on the time-frequency resource position, and receives data transmitted on other resources in the scheduling time-frequency resource range.

[0222] 508. The user equipment performs channel estimation according to the received reference signal.

[0223] In the embodiment of the application, the UE performs channel estimation according to the received reference signal, and performs receiving demodulation on data on other resources in the scheduling time-frequency resource range based on the estimated channel state information.

[0224] Compared with the prior art, the reference signal resource mapping method provided by the embodiment of the present application can adapt the density of the reference signal to the problem of mismatch between the density of the reference signal and the coherence bandwidth and coherence time of the corresponding channel caused by the different OFDM symbol lengths due to the different working frequencies of the system. The improvement of the embodiment of the present application over the prior art is that, in the prior art, when the system is designed, full-band access is not considered, a unique fixed working frequency is assumed, and a subcarrier spacing is selected based on the working frequency and the hardware level and the channel scenario; in this way, the density of the reference signal in the frequency domain and the time domain is fixed. In the embodiment of the present application, the process of downlink scheduling is shown, and the density of the reference signal in the frequency domain and the time domain can be changed, which can be determined according to the configuration parameter information of the subcarrier spacing or other information, so that the density of the reference signal can still match the coherence bandwidth and the coherence time of the corresponding channel after considering that the system works at different frequencies with different subcarrier spacings, thereby meeting the requirements of the communication system for receiving and transmitting.

[0225] As shown in Figure 6 , it is another embodiment schematic diagram of the resource mapping method in the embodiment of the present application, which is described by taking the sending end as a base station and the receiving end as a UE, that is, the process of downlink scheduling in the LTE communication process, which includes the following steps.

[0226] 601. The base station determines the time-frequency resources scheduled for the user equipment.

[0227] 602. The base station sends downlink scheduling signaling to the user equipment, and the downlink scheduling signaling includes the scheduled time-frequency resources.

[0228] 603. The base station acquires at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0229] 604. The base station determines the time-frequency resource position of the mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the current working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0230] In the embodiment of the present application, steps 601-604 are the same as steps 501-504 shown in Figure 5 , which will not be described here.

[0231] 605. The base station sends the configuration information of the reference signal position to the user equipment.

[0232] In the embodiment of the present application, this step can include steps e and f, as shown below.

[0233] e、 the base station sends configuration information of the reference signal position to the user equipment;

[0234] In the embodiment of the present application, the base station first determines the configuration information of the reference signal position, and then sends the configuration information of the reference signal position to the user equipment. The related information of the configuration information of the reference signal position can be the interval of the reference signal in time and / or frequency. Further, when the time interval is in units of subframes or time slots, and the frequency interval is in units of subbands, the above-mentioned related information can further include the offset in units of OFDM symbols in time and the offset in units of subcarriers in frequency domain.

[0235] f、 the user equipment receives the configuration information of the reference signal position;

[0236] In the embodiment of the present application, the user equipment receives the configuration information of the reference signal position. The related information of the configuration information of the reference signal position can be the interval of the reference signal in time and / or frequency. Further, when the time interval is in units of subframes or time slots, and the frequency interval is in units of subbands, the above-mentioned related information can further include the offset in units of OFDM symbols in time and the offset in units of subcarriers in frequency domain.

[0237] 606、 the user equipment determines the time-frequency resource position of receiving the reference signal according to the configuration information of the reference signal position;

[0238] In the embodiment of the present application, the user equipment determines the time-frequency resource position of receiving the reference signal according to the configuration information of the reference signal position. The specific determination method can refer to the formula (1)-formula (4) in step 504 in the embodiment shown in Figure 5 The formula (1)-formula (4) in step 504 in the embodiment shown in

[0239] 607、 the base station transmits the reference signal to the user equipment;

[0240] In the embodiment of the present application, the step includes steps g and h, as shown below:

[0241] g、 the base station transmits the reference signal to the user equipment according to the time-frequency resource position;

[0242] In the embodiment of the present application, the base station transmits the reference signal to the UE within the time-frequency resource range scheduled by the UE according to the determined time-frequency resource position, and transmits data on other resources in the scheduling range. That is, the base station can transmit the reference signal after mapping according to the determined time-frequency resource position (k, l), or can transmit the reference signal after mapping according to the density determined according to the preset rule.

[0243] h、 the user equipment receives the reference signal transmitted by the base station on the time-frequency resource position;

[0244] In the embodiment of the present application, the user equipment receives the reference signal transmitted by the base station in determining the time-frequency resource position of the received reference signal, and receives data transmitted on other resources within the scheduled time-frequency resource range.

[0245] 608、The user equipment performs channel estimation according to the received reference signal.

[0246] In the embodiment of the present application, the step 608 is the same as the step 508 in the embodiment shown in the figure, and thus will not be described here. Figure 5

[0247] In the embodiment of the present application, for one embodiment of the semi-static or dynamic configuration, the base station needs to send the configuration information of the reference signal to the user equipment, and the user equipment determines the time-frequency resource position of the received reference signal according to the configuration information of the reference signal, and the base station determines the time-frequency resource position of the transmitted reference signal without change.

[0248] The above describes the method for mapping resources in the embodiment of the present application, and the following describes the sending end and the receiving end in the embodiment of the present application, as shown in the figure, Figure 7 which is one embodiment of the sending end in the embodiment of the present application, and can include:

[0249] The obtaining module 701 is configured to obtain at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0250] The determining module 702 is configured to determine the time-frequency resource position of the mapped reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0251] The transmitting module 703 is configured to map the reference signal at the time-frequency resource position.

[0252] Optionally, in some embodiments of the present application,

[0253] The determining module 702 is specifically configured to determine the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information, and determine the time-frequency resource position of the mapped reference signal according to the interval of the reference signal.

[0254] Optionally, in some embodiments of the present application,

[0255] The determining module 702 is specifically configured to determine the time-frequency resource position of the mapped reference signal according to the preset rule, according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.​

[0256] Optionally, in some embodiments of the present application, the time-frequency resource position of the mapping reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the orthogonal frequency division multiplexing (OFDM) symbol number of the reference signal.

[0257] The determining module 702 is specifically configured to determine the subcarrier number k of the mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value.

[0258] Alternatively,

[0259] The determining module 702 is specifically configured to determine the OFDM symbol number l of the mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value.

[0260] Alternatively,

[0261] The determining module 702 is specifically configured to determine the subcarrier number k and the OFDM symbol number l of the mapping reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0262] Optionally, in some embodiments of the present application,

[0263] The transmitting module 703 is configured to transmit the configuration information of the reference signal position to the receiving end if the sending end includes a base station.

[0264] Alternatively,

[0265] The acquiring module 701 is configured to receive the configuration information of the reference signal position and determine the time-frequency resource position of the mapping reference signal according to the configuration information of the reference signal position if the sending end includes a user equipment.

[0266] As Figure 8 shown, it is a schematic diagram of one embodiment of the receiving end in the embodiments of the present application, which can include:

[0267] The acquiring module 801 is configured to acquire at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0268] The determining module 802 is configured to determine the time-frequency resource position of the receiving reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed, and the scheduled bandwidth information.

[0269] The receiving module 803 is configured to receive the reference signal transmitted by the sending end at the time-frequency resource position.

[0270] Optionally, in some embodiments of the present application,

[0271] The determining module 802 is specifically configured to determine the interval of the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information; and determine the time-frequency resource position for receiving the reference signal according to the interval of the reference signal.

[0272] Optionally, in some embodiments of the present application,

[0273] The determining module 802 is specifically configured to determine the time-frequency resource position for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, and according to a preset rule.

[0274] Optionally, in some embodiments of the present application, the time-frequency resource position for receiving the reference signal is represented by (k, l), k is the subcarrier number of the reference signal, and l is the OFDM symbol number of the reference signal;

[0275] The determining module 802 is specifically configured to determine the subcarrier number k for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the OFDM symbol number l is a first preset value.

[0276] Alternatively,

[0277] The determining module 802 is specifically configured to determine the OFDM symbol number l for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information, wherein the subcarrier number k is a second preset value.

[0278] Alternatively,

[0279] The determining module 802 is specifically configured to determine the subcarrier number k and the OFDM symbol number l for receiving the reference signal according to at least one of the subcarrier spacing configuration parameter information, the currently working frequency information, the currently supported moving speed and the scheduled bandwidth information.

[0280] Optionally, in some embodiments of the present application, the receiving end further comprises:

[0281] The transmitting module 803 is configured to transmit the configuration information of the reference signal position to the sending end if the receiving end comprises a base station, and the configuration information of the reference signal position is used for the sending end to determine the time-frequency resource position of the mapped reference signal.

[0282] Or,

[0283] The acquiring module 801 is configured to acquire the configuration information of the reference signal position sent by the sending end if the receiving end comprises a user equipment, and determine the time-frequency resource position of the received reference signal according to the configuration information of the reference signal position.

[0284] As Figure 9 shown, it is a schematic diagram of one embodiment of the base station in the embodiment of the application, comprising:

[0285] The base station can have a large difference due to different configurations or performances, and can comprise a transceiver 901, one or more central processing units (CPU) 902 (for example, one or more processors) and a memory 903, one or more storage media 904 (for example, one or more mass storage devices) for storing application programs 9041 or data 9042. Among them, the memory 903 and the storage medium 904 can be temporary storage or persistent storage. The programs stored in the storage medium 904 can include one or more modules (not shown in the figure), each of which can include a series of instruction operations in the cloud controller. Further, the central processing unit 902 can be configured to communicate with the storage medium 904 and execute a series of instruction operations in the storage medium 904 on the base station. Figure 9

[0286] In the embodiment of the application, the transceiver 901 is configured to perform Figure 3 step 302 in the method 300, Figure 4 steps 402 and 405 in the method 400, Figure 5 steps 502 and 507 in the method 500, Figure 6 steps 602, 605 and 607 in the method 600.

[0287] The central processing unit 902 is configured to perform Figure 3 steps 301, 305, 306 and 308 in the method 300, Figure 4 steps 401, 403, 404 and 408 in the method 400, Figure 5 steps 501, 503 and 504 in the method 500, Figure 6 steps 601, 603 and 604 in the method 600.

[0288] As Figure 10 shown, it is a schematic diagram of one embodiment of the user equipment in the embodiment of the application, comprising:

[0289] ​The user equipment can be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, etc. Taking the mobile phone as an example, the user equipment is a mobile phone:

[0290] Figure 10 A block diagram of a part of the structure of a mobile phone related to the terminal provided by the embodiments of the present application is shown. Referring to Figure 10 , the mobile phone includes a radio frequency (RF) circuit 1010, a memory 1020, an input unit 1030, a display unit 1040, a sensor 1050, an audio circuit 1060, a wireless fidelity (WiFi) module 1070, a processor 1080, and a power supply 1090, etc. Those skilled in the art can understand that Figure 10 the structure of the mobile phone shown in the above is not a limitation on the mobile phone, and the mobile phone can include more or less components than those shown in the figure, or combine some components, or have different arrangement of components.

[0291] The components of the mobile phone will be introduced in detail below. Figure 10

[0292] The RF circuit 1010 can be used for receiving and sending signals in the process of information or call, in particular, receiving the downlink information of a base station and processing by the processor 1080; in addition, sending the uplink data to the base station. Generally, the RF circuit 1010 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the RF circuit 1010 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to global system for mobile communication (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), email, short message service (SMS), etc.

[0293] ​The memory 1020 can be used to store software programs and modules, and the processor 1080 can execute various function applications and data processing of the mobile phone by running the software programs and modules stored in the memory 1020. The memory 1020 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), and the like. In addition, the memory 1020 can include a high-speed random access memory, and can also include a non-volatile memory, for example, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0294] The input unit 1030 can be used to receive inputted digital or character information, and to generate key signal input related to the user settings and function control of the mobile phone. Specifically, the input unit 1030 can include a touch panel 1031 and other input devices 1032. The touch panel 1031, also called a touch screen, can collect the touch operation of a user thereon or nearby (such as the operation of the user using a finger, a stylus, or any suitable object or accessory on or near the touch panel 1031), and drive the corresponding connection device according to the pre-set program. Optionally, the touch panel 1031 can include two parts of a touch detection device and a touch controller. The touch detection device detects the touch position of the user and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, and converts it into touch coordinates, and then sends it to the processor 1080, and can also receive the command from the processor 1080 and execute it. In addition, the touch panel 1031 can be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave type. In addition to the touch panel 1031, the input unit 1030 can also include other input devices 1032. Specifically, the other input devices 1032 can include one or more of a physical keyboard, a function key (such as a volume control key, an on-off key, etc.), a trackball, a mouse, a joystick, and the like.

[0295] The display unit 1040 can be used to display information input by a user or information provided to the user as well as various menus of the phone. The display unit 1040 can include a display panel 1041, which can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, a touch panel 1031 can cover the display panel 1041, and when the touch panel 1031 detects a touch operation thereon or adjacent thereto, it transmits to the processor 1080 to determine the type of touch event, and then the processor 1080 provides corresponding visual output on the display panel 1041 according to the type of touch event. Although in the above embodiment, the touch panel 1031 and the display panel 1041 are implemented as two independent components to realize the input and output functions of the phone, in some embodiments, the touch panel 1031 and the display panel 1041 can be integrated to realize the input and output functions of the phone. Figure 10

[0296] The phone can also include at least one sensor 1050, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1041 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 1041 and / or the backlight when the phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and when at rest, it can detect the magnitude and direction of gravity, which can be used for applications that identify the posture of the phone (such as landscape / portrait screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like. As for other sensors that the phone can also be configured, such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, they will not be described here.

[0297] The audio circuit 1060, the speaker 1061, and the microphone 1062 can provide an audio interface between the user and the phone. The audio circuit 1060 can convert received audio data into an electrical signal, which is transmitted to the speaker 1061 to be converted into a sound signal for output; on the other hand, the microphone 1062 converts the collected sound signal into an electrical signal, which is received by the audio circuit 1060 to be converted into audio data, which is then output to the processor 1080 for processing, and then transmitted to another phone via the RF circuit 1010, or output to the memory 1020 for further processing.

[0298] ​WiFi belongs to short distance wireless transmission technology, and the mobile phone can help users send and receive emails, browse web pages and access streaming media through the WiFi module 1070, which provides users with wireless broadband Internet access. Although Figure 10 The WiFi module 1070 is shown, but it can be understood that it does not belong to the necessary structure of the mobile phone, and can be omitted as needed without changing the essence of the application.

[0299] The processor 1080 is the control center of the mobile phone, which connects all parts of the mobile phone through various interfaces and lines, executes various functions of the mobile phone and processes data by running or executing software programs and / or modules stored in the memory 1020 and calling data stored in the memory 1020, thereby monitoring the mobile phone as a whole. Optionally, the processor 1080 can include one or more processing units; preferably, the processor 1080 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application program, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1080.

[0300] The mobile phone also includes a power supply 1090 (such as a battery) for supplying power to various components, and preferably the power supply can be logically connected to the processor 1080 through a power management system, so as to realize the functions of managing charging, discharging and power consumption management through the power management system.

[0301] Although not shown, the mobile phone can also include a camera, a Bluetooth module, etc., which will not be described here.

[0302] In the embodiment of the application, the processor 1080 included in the user equipment also has the following functions:

[0303] performing steps 303 and 304 in Figure 3 performing step 406 in Figure 4 performing steps 505, 506 and 508 in Figure 5 performing steps 606 and 608 in Figure 6

[0304] The radio frequency circuit 1010 included in the user equipment also has the following functions:

[0305] performing step 307 in Figure 3 performing step 407 in Figure 4

[0306] ​​The embodiment of the present application further provides a storage medium, it is to be explained that the technical scheme of the present application is essentially or says to the part of contribution to the prior art or the whole or part of the technical scheme can be embodied in the form of software product, the computer software product is stored in a storage medium, is used for storing computer software instruction used for the above-mentioned equipment, it contains the program for executing the above-mentioned first aspect, second aspect or the program designed for equipment.The storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or optical disc and various program code storage medium.

[0307] The terms "first", "second", "third", "fourth" and the like in the description and in the claims of the present application, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms herein is to be construed to cover the possibility where more than one of the similar object recited are present. Also, the use of terms such as "including", "comprising", "having" and the like are used herein to generally mean the presence of stated elements or integers or steps, but not to preclude the presence or addition of one or more other elements or integers or steps, unless specifically recited otherwise.

Claims

1. A method for resource mapping, characterized in that, include: The transmitting end obtains the subcarrier interval configuration parameter information; The subcarrier spacing configuration parameter information includes: OFDM symbol number of the scheduled time-frequency resources, and / or, subframe number, and / or, subcarrier number, and / or, subband number; The transmitting end obtains at least one of the currently used subcarrier interval and the scheduled bandwidth information; The transmitting end determines the time interval of the reference signal based on at least one of the currently used subcarrier interval and the scheduled bandwidth information, and the correspondence between multiple values ​​of at least one of the subcarrier interval and the scheduled bandwidth information and multiple values ​​of the time interval of the reference signal. The transmitting end determines the time-frequency resource location of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal; The transmitting end maps the reference signal at the time-frequency resource location.

2. The method according to claim 1, characterized in that, The transmitting end determines the time-frequency resource location of the mapped reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, including: The transmitting end determines the time-frequency resource location of the mapped reference signal according to the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, following a preset rule.

3. The method according to claim 1 or 2, characterized in that, The time-frequency resource location of the mapped reference signal is represented by (k, l), where k is the subcarrier number of the reference signal and l is the orthogonal frequency division multiplexing (OFDM) symbol number of the reference signal. The transmitting end determines the time-frequency resource location of the mapped reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, including: The transmitting end determines the subcarrier number k of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the OFDM symbol number l is a first preset value; or, The transmitting end determines the OFDM symbol number l of the mapping reference signal according to the subcarrier spacing configuration parameter information and the time domain spacing of the reference signal, wherein the subcarrier number k is a second preset value; or, The transmitting end determines the subcarrier number k and OFDM symbol number l of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal.

4. The method according to claim 1 or 2, characterized in that, The method further includes: If the transmitting end includes a base station, the transmitting end will send the configuration information of the time-frequency resource location of the reference signal to the receiving end; or, If the transmitting end includes a user equipment, the transmitting end receives the configuration information of the time-frequency resource location of the reference signal, and determines the time-frequency resource location of the mapped reference signal based on the configuration information of the time-frequency resource location of the reference signal.

5. A method for resource mapping, characterized in that, include: The receiving end obtains the subcarrier interval configuration parameter information; The subcarrier spacing configuration parameter information includes: OFDM symbol number of the scheduled time-frequency resources, and / or, subframe number, and / or, subcarrier number, and / or, subband number; The receiving end obtains at least one of the currently used subcarrier interval and the scheduled bandwidth information; The receiving end determines the time interval of the reference signal based on at least one of the currently used subcarrier interval and the scheduled bandwidth information, and the correspondence between multiple values ​​of at least one of the subcarrier interval and the scheduled bandwidth information and multiple values ​​of the time interval of the reference signal. The receiving end determines the time-frequency resource location of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal; The receiving end receives the reference signal transmitted by the transmitting end at the time-frequency resource location.

6. The method according to claim 5, characterized in that, The receiving end determines the time-frequency resource location of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, including: The receiving end determines the time-frequency resource location of the received reference signal according to the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, following a preset rule.

7. The method according to claim 5 or 6, characterized in that, The time-frequency resource location of the received reference signal is represented by (k, l), where k is the subcarrier number of the reference signal and l is the OFDM symbol number of the reference signal. The receiving end determines the time-frequency resource location of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, including: The receiving end determines the subcarrier number k of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the OFDM symbol number l is a first preset value; or, The receiving end determines the OFDM symbol number k of the received reference signal according to the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the subcarrier number k is a second preset value; or, The receiving end determines the subcarrier number k and OFDM symbol number l of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal.

8. The method according to claim 5 or 6, characterized in that, The method further includes: If the receiving end includes a base station, the receiving end sends the configuration information of the time-frequency resource location of the reference signal to the transmitting end. The configuration information of the reference signal location is used by the transmitting end to determine the time-frequency resource location of the mapping reference signal. or, If the receiving end includes a user equipment, the receiving end receives the configuration information of the time-frequency resource location of the reference signal sent by the transmitting end, and determines the time-frequency resource location of the received reference signal based on the configuration information of the time-frequency resource location of the reference signal.

9. A transmitter, characterized in that, include: The acquisition module is used to obtain subcarrier interval configuration parameter information; The subcarrier spacing configuration parameter information includes: OFDM symbol number of the scheduled time-frequency resources, and / or, subframe number, and / or, subcarrier number, and / or, subband number; The acquisition module is also used to acquire at least one of the currently used subcarrier interval and the scheduled bandwidth information; The determining module is configured to determine the time interval of the reference signal based on at least one of the currently used subcarrier interval and the scheduled bandwidth information, and the correspondence between multiple values ​​of at least one of the subcarrier interval and the scheduled bandwidth information and multiple values ​​of the time interval of the reference signal. The determining module is further configured to determine the time-frequency resource location of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal; A mapping module is used to map the reference signal at the time-frequency resource location.

10. The transmitting end according to claim 9, characterized in that, The determining module is specifically used to determine the time-frequency resource location of the mapped reference signal according to the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, and in accordance with preset rules.

11. The transmitting end according to claim 9 or 10, characterized in that, The time-frequency resource location of the mapped reference signal is represented by (k, l), where k is the subcarrier number of the reference signal and l is the orthogonal frequency division multiplexing (OFDM) symbol number of the reference signal. The determining module is specifically used to determine the subcarrier number k of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the OFDM symbol number l is a first preset value; or, The determining module is specifically used to determine the OFDM symbol number l of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the subcarrier number k is a second preset value; or, The determining module is specifically used to determine the subcarrier number k and OFDM symbol number l of the mapping reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal.

12. The transmitting end according to claim 9 or 10, characterized in that, A transmitting module is configured to transmit the configuration information of the time-frequency resource location of the reference signal to the receiving end if the transmitting end includes a base station. or, The acquisition module is configured to, if the transmitting end includes a user equipment, receive configuration information of the time-frequency resource location of the reference signal, and determine the time-frequency resource location of the mapped reference signal based on the configuration information of the time-frequency resource location of the reference signal.

13. A receiving end, characterized in that, include: The acquisition module is used to obtain subcarrier interval configuration parameter information; The subcarrier spacing configuration parameter information includes: OFDM symbol number of the scheduled time-frequency resources, and / or, subframe number, and / or, subcarrier number, and / or, subband number; The acquisition module is also used to acquire at least one of the currently used subcarrier interval and the scheduled bandwidth information; The determining module is configured to determine the time interval of the reference signal based on at least one of the currently used subcarrier interval and the scheduled bandwidth information, and the correspondence between multiple values ​​of at least one of the subcarrier interval and the scheduled bandwidth information and multiple values ​​of the time interval of the reference signal. The determining module is further configured to determine the time-frequency resource location of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal; A receiving module is used to receive a reference signal transmitted by a transmitter at the time-frequency resource location.

14. The receiving end according to claim 13, characterized in that, The determining module is specifically used to determine the time-frequency resource location of the received reference signal according to a preset rule based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal.

15. The receiving end according to claim 13 or 14, characterized in that, The time-frequency resource location of the received reference signal is represented by (k, l), where k is the subcarrier number of the reference signal and l is the OFDM symbol number of the reference signal. The determining module is specifically used to determine the subcarrier number k of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the OFDM symbol number l is a first preset value; or, The determining module is specifically used to determine the OFDM symbol number k of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal, wherein the subcarrier number k is a second preset value; or, The determining module is specifically used to determine the subcarrier number k and OFDM symbol number l of the received reference signal based on the subcarrier spacing configuration parameter information and the time-domain spacing of the reference signal.

16. The receiving end according to claim 13 or 14, characterized in that, The receiving end also includes: A transmitting module is configured to transmit configuration information of the time-frequency resource location of the reference signal to the transmitting end if the receiving end includes a base station. The configuration information of the reference signal location is used by the transmitting end to determine the time-frequency resource location of the mapping reference signal. or, The acquisition module is configured to, if the receiving end includes a user equipment, receive configuration information of the time-frequency resource location of the reference signal sent by the transmitting end, and determine the time-frequency resource location of the received reference signal based on the configuration information of the time-frequency resource location of the reference signal.

17. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause the communication device to perform the method according to any one of claims 1-8.

18. A resource mapping apparatus, characterized in that, The apparatus includes a processor and a storage medium storing instructions that, when executed by the processor, cause the processor to perform the method according to any one of claims 1-8.

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