CN108667759A - A signal transmission method and device thereof - Google Patents

Abstract

The embodiment of the present invention discloses a signal transmission method, wherein the method includes the following steps: the first user equipment determines the first cyclic shift factor corresponding to the first user equipment; The shift factor performs cyclic shift processing on the first time-domain signal to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain signal; the first user equipment performs discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal; the first user equipment performs frequency-frequency processing on the first frequency-domain signal Domain processing obtains the first signal to be sent, and sends the first signal to be sent. By adopting the embodiment of the present invention, the purpose of randomizing inter-cell interference can be achieved.

Description

A signal transmission method and device thereof

technical field

The present invention relates to the field of communication technologies, in particular to a signal transmission method and a device thereof.

Background technique

In a Long Term Evolution (LTE) system, important control information such as an uplink Hybrid Automatic Repeat reQuest (HARQ) acknowledgment, a Channel Quality Indicator (CQI) and a scheduling request are generally controlled by the physical uplink Channel (Physical Uplink ControlCHannel, PUCCH) transmission. The New Radio (NR) system will continue to use the physical uplink control channel to transmit uplink control information (Uplink Control Information, UCI), except for the long-term PUCCH similar to LTE, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) proposes to use a short-duration PUCCH in the NR system, which can greatly shorten the uplink feedback delay. The short-term PUCCH generally consists of 1 to 2 Orthogonal Frequency Division Multiplexing (OFDM) symbols or Discrete Fourier Transformation spread OFDM (Discrete Fourier Transformation spread OFDM, DFT-s-OFDM) symbols, and can carry 1 to tens of bits of information.

In 3GPP related meetings, regarding the single-symbol short-term PUCCH, a consensus was reached on the design criteria of the short-term PUCCH under a given load. The design criteria include: 1) The multiplexing capacity of the short-term PUCCH can be lower than that of the long-term PUCCH PUCCH; 2) Consider at least frequency diversity, interference diversity, peak-to-average power ratio (Peak to Average Power Ratio, PAPR) performance, reference signal overhead and other performance indicators; 3) It can support interference randomization operation; 4) For more than 2 bits UCI load, try to support scalable design.

The currently proposed short-term PUCCH design scheme has inter-cell interference.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a signal transmission method and device thereof, which can achieve the purpose of randomizing inter-cell interference.

In a first aspect, an embodiment of the present invention provides a signal transmission method, including:

The first user equipment determines a first cyclic shift factor corresponding to the first user equipment;

The first user equipment performs cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is multiplexed in the time domain a reference sequence and a signal obtained from a sequence of the first uplink control information;

The first user equipment performs discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal;

The first user equipment performs frequency domain processing on the first frequency domain signal to obtain a first signal to be sent, and sends the first signal to be sent.

In a second aspect, an embodiment of the present invention provides a signal transmission device, including:

a processing unit, configured to determine a first cyclic shift factor corresponding to the first user equipment;

The processing unit is further configured to perform cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is A signal obtained by using the first reference sequence and the sequence of the first uplink control information;

The processing unit is further configured to perform discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal;

The processing unit is further configured to perform frequency domain processing on the first frequency domain signal to obtain a first signal to be sent;

A sending unit, configured to send the first signal to be sent.

In a third aspect, an embodiment of the present invention provides a first user equipment, including a processor and a transceiver,

The processor is configured to determine a first cyclic shift factor corresponding to the first user equipment;

The processor is further configured to perform cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is A signal obtained by using the first reference sequence and the sequence of the first uplink control information;

The processor is further configured to perform discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal;

The processor is further configured to perform frequency domain processing on the first frequency domain signal to obtain a first signal to be sent;

The transceiver is configured to send the first signal to be sent.

In the above three aspects, after determining the first cyclic shift factor, the first user equipment cyclically shifts the time domain signal according to the first cyclic shift factor, and then performs discrete Fourier transform processing and frequency domain processing to obtain the first cyclic shift factor. The signals to be sent, and the first signal to be sent are sent, and the purpose of randomizing inter-cell interference can be achieved through time domain cyclic shift.

In combination with the above three aspects, in a possible implementation manner, the first user equipment determines the first cyclic shift factor corresponding to the first user equipment according to the received first downlink notification signaling, the The first downlink notification signaling carries information about the first cyclic shift factor allocated for the first user equipment.

In combination with the above three aspects, in a possible implementation manner, the first user equipment calculates the first cyclic shift factor corresponding to the first user equipment according to the received first broadcast signaling, specifically, according to The first broadcast signaling obtains the cell identity of the cell to which the first user equipment belongs, and the first broadcast signaling carries the information of the cell to which the first user equipment belongs; and calculates according to the cell identity to obtain the first A first cyclic shift factor corresponding to a user equipment.

In combination with the above three aspects, in a possible implementation manner, the first reference sequence is a sequence with a first cyclic prefix added before the sequence of the first reference signal, and the length of the first cyclic prefix is greater than or equal to zero an integer of . A cyclic prefix is added before the sequence of the reference signal, so that the network device can eliminate the multipath interference of the reference signal to the uplink control information through proper processing.

In combination with the above three aspects, in a possible implementation manner, if the first user equipment is located in a first cell and the second user equipment is located in a second cell adjacent to the first cell, the first The cyclic shift factor is different from the second cyclic shift factor corresponding to the second user equipment, and the first cyclic shift factor and the second cyclic shift factor are integers greater than or equal to zero. Adjacent cells use different cyclic shift factors to achieve the purpose of randomizing inter-cell interference.

In combination with the above three aspects, in a possible implementation manner, if the first user equipment and the second user equipment are located in the same cell, the sequence of the first reference signal is the same as the first reference signal sequence corresponding to the second user equipment. The multiplexing mode of the sequence of the two reference signals is code division multiplexing.

In combination with the above three aspects, in a possible implementation manner, if the first user equipment and the second user equipment are located in the same cell, the sequence of the first uplink control information is the same as that of the second user equipment. The multiplexing manner of the sequence of the second uplink control information is code division multiplexing or space division multiplexing.

In a fourth aspect, the embodiment of the present invention provides another signal transmission method, including:

The network device determines a first cyclic shift factor corresponding to the first user equipment;

The network device receives a first signal to be sent sent by the first user equipment, where the first signal to be sent is the discrete Fourier transform performed by the first user equipment on the first cyclically shifted time domain signal in sequence, A signal obtained by frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, and the first The time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain.

In the fifth aspect, the embodiment of the present invention provides another signal transmission device, including:

a processing unit, configured to determine a first cyclic shift factor corresponding to the first user equipment;

A receiving unit, configured to receive a first signal to be transmitted sent by the first user equipment, where the first signal to be transmitted is sequentially subjected to discrete Fourier transform by the first user equipment on the first cyclically shifted time domain signal . A signal obtained by frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, and the first A time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain.

In a sixth aspect, an embodiment of the present invention provides a network device, including a processor and a transceiver,

The processor is configured to determine a first cyclic shift factor corresponding to the first user equipment;

The transceiver is configured to receive a first signal to be sent sent by the first user equipment, where the first signal to be sent is the discrete Fourier sequence of the first cyclically shifted time domain signal by the first user equipment. The signal obtained by leaf transformation and frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, so The first time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain.

In the fourth to sixth aspects above, the network device determines the cyclic shift factor corresponding to the user equipment, and receives the signal to be transmitted sent by the user equipment, so that the network device can process the signal to be transmitted to achieve the purpose of randomizing inter-cell interference.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the network device sends the first downlink notification signaling to the first user equipment after determining the first cyclic shift factor, The first downlink notification signaling carries information about the first cyclic shift factor allocated for the first user equipment, and the first downlink notification signaling is used for the first user equipment to determine the The first cyclic shift factor.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the network device sends a first broadcast signaling to the first user equipment, and the first broadcast signaling carries the first broadcast signaling of the first user equipment Information about the cell to which the first user equipment belongs, the first broadcast signaling is used by the first user equipment to obtain the cell identity of the cell to which the first user equipment belongs, and the cell identity corresponding to the first user equipment is calculated according to the cell identity The first cyclic shift factor.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the first reference sequence is a sequence with a first cyclic prefix added before the sequence of the first reference signal, and the length of the first cyclic prefix is is an integer greater than or equal to zero. The cyclic prefix is added before the sequence of the reference signal, and the network device can eliminate the multipath interference of the reference signal to the uplink control information through proper processing.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the network device determines a second cyclic shift factor corresponding to the second user equipment, and the second cyclic shift factor is different from the first cyclic shift factor The shift factors are different, and the second cell to which the second user equipment belongs is adjacent to the first cell to which the first user equipment belongs; receiving a second signal to be sent sent by the second user equipment, the first The second signal to be sent is a signal obtained by the second user equipment through discrete Fourier transform and frequency domain processing on the second cyclically shifted time domain signal in sequence, and the second cyclically shifted time domain signal is the signal obtained by the user equipment A signal obtained by performing cyclic shift processing on a second time domain signal according to the second cyclic shift factor, where the second time domain signal is obtained by multiplexing a second reference sequence and a sequence of second uplink control information in the time domain signal of.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the network device determines the sequence of the first reference signal, and determines the sequence corresponding to the second user equipment located in the same cell as the first user equipment. For the sequence of the second reference signal, the multiplexing mode of the sequence of the first reference signal and the sequence of the second reference signal is code division multiplexing. The network equipment allocates reference signal sequences of different user equipments in the same cell as different cyclically shifted versions of the same root sequence.

With reference to the fourth aspect to the sixth aspect, in a possible implementation manner, the multiplexing method of the sequence of the first uplink control information and the sequence of the second uplink control information corresponding to the second user equipment is code division multiplexing or space division multiplexing.

In a seventh aspect, the present application provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute the signal transmission method as described in the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute the signal transmission method as described in the fourth aspect.

By implementing the embodiments of the present invention, the purpose of randomizing inter-cell interference can be achieved.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the following will describe the drawings that need to be used in the embodiments of the present invention or the background technology.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention;

Fig. 2 is a schematic diagram of the basic principle of the short-term physical uplink control channel;

FIG. 3 is a schematic flowchart of a signal transmission method provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the basic structure of a single-symbol time-domain signal;

Fig. 5 is a structural schematic diagram of four kinds of cyclically shifted time-domain signals;

Figure 6a is a schematic diagram of continuous subcarrier mapping;

Figure 6b is a schematic diagram of equally spaced subcarrier mapping;

FIG. 7 is a schematic structural diagram of a time-domain signal of two symbols provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a signal transmission device provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another signal transmission device provided by an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a first user equipment provided by an embodiment of the present invention;

Fig. 11 is a schematic structural diagram of a network device provided by an embodiment of the present invention.

Detailed ways

Embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

The embodiment of the present invention can be applied to a wireless communication system. A wireless communication system is usually composed of a base station (BaseStation, BS). A base station coverage area includes at least one cell. The base station can provide communication services to multiple user equipments in the cell. Refer to the figure 1 shows a schematic diagram of an application scenario. The base station coverage area includes three cells, which provide communication services for user equipment 1 in cell 1 and user equipment 2 in cell 2. It should be noted that the number of cells, base station configuration, user equipment number, and user equipment configuration shown in FIG. 1 are for example and do not limit the embodiment of the present invention. The base station can be connected to core network equipment, which is not shown in FIG. 1 . Wherein, the base station includes a baseband unit (Baseband Unit, BBU) and a remote radio unit (Remote Radio Unit, RRU). BBU and RRU can be placed in different places, for example: RRU is far away and placed in an open area away from high traffic, and BBU is placed in the central computer room. The BBU and RRU can also be placed in the same equipment room. The BBU and the RRU may also be different components under one rack.

It should be noted that the wireless communication systems mentioned in the embodiments of the present invention include but are not limited to: Narrow Band-Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Time Division Synchronization Code division multiple access system (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA), long term evolution system (Long Term Evolution, LTE), NR system and future mobile communication system.

In the embodiment of the present invention, the base station is a device deployed in a radio access network to provide a wireless communication function for user equipment. The base station may include various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, transmission reception points (Transmission Reception Point, TRP) and so on. In systems using different radio access technologies, the name of the equipment with base station functions may be different. For example, in an LTE system, it is called an evolved NodeB (evolved NodeB, eNB or eNodeB). In a 3rd Generation (3G) system, it is called a Node B (Node B, NB). For the convenience of description, in all the embodiments of the present invention, the above-mentioned apparatuses for providing wireless communication functions for user equipment are collectively referred to as network equipment.

The user equipment (User Equipment, UE) involved in the embodiments of the present invention may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem. The user equipment may also be called a mobile station (Mobile Station, MS) or a terminal (Terminal), and may also include a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smartphone), a wireless data card, a personal Digital assistant (Personal Digital Assistant, PDA) computer, tablet computer, wireless modem (modem), handheld device (handset), laptop computer (laptop computer), machine type communication (Machine Type Communication, MTC) terminal, etc. For convenience of description, in all embodiments of the present invention, the above-mentioned devices are collectively referred to as user equipment.

A short-term PUCCH design scheme was proposed in a 3GPP related meeting, which is designed based on the DFT-s-OFDM waveform. Please refer to the schematic diagram of the basic principle of the short-term PUCCH shown in Figure 2. First, UCI and uplink are multiplexed in the time domain. The reference signal (Reference Signal, RS) obtains the time domain signal, and then transforms the time domain signal into the frequency domain through DFT to obtain the frequency domain signal, and then performs subcarrier mapping and inverse fast Fourier transform (Inverse Fast Fourier Transform) on the frequency domain signal in sequence. , IFFT), adding a cyclic prefix (Cyclic Prefix, CP) and other conventional operations in the frequency domain, and finally the generated signal is transmitted through the radio frequency module. Among them, some frequency domain conventional operations and radio frequency modules are not shown in FIG. 2 . According to the process shown in Figure 2, the final generated waveform has the characteristics of low PAPR, and the load can be flexibly configured.

However, the above design solution directly performs time division multiplexing of the UCI and the uplink RS, and inter-cell interference exists.

In view of this, the embodiment of the present invention provides a signal transmission method and its device, which improves the time-domain signal in the schematic diagram of the basic principle shown in FIG. the goal of. Correspondingly, the embodiments of the present invention also provide a signal transmission method and device thereof. The network equipment receives the signal to be transmitted sent by the user equipment, and processes the signal to be transmitted to obtain a reference signal sequence and a sequence of uplink control information.

The signal transmission method provided by the embodiment of the present invention will be described in detail below.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a signal transmission method provided by an embodiment of the present invention. The schematic flowchart is introduced from the perspective of interaction between the network device and the first user equipment. The method includes but is not limited to the following steps:

Step S101: the network device determines a first cyclic shift factor corresponding to the first user equipment;

Wherein, the first user equipment is any user equipment within the coverage of the network equipment.

In a possible implementation manner, the network device may determine the first cyclic shift factor corresponding to the first user equipment according to a certain rule, and the specific rule is not limited in this embodiment of the present invention. For example, the network device may determine the first cyclic shift factor according to a table lookup rule. First, the network device determines the cell identity of the cell to which the first user equipment belongs, and according to the cell identity in the preset comparison table The cyclic shift factor corresponding to the cell identifier is searched in and determined as the first cyclic shift factor, and the preset comparison table includes the cyclic shift factor corresponding to each cell identifier in at least one cell identifier. For another example, the network device allocates the first cyclic shift factor to the first user equipment according to a random allocation rule.

In a possible implementation manner, the network device may first determine a cell identity of a cell to which the first user equipment belongs, and calculate a first cyclic shift factor corresponding to the first user equipment according to the cell identity, The specific calculation formula or calculation method is not limited in the embodiment of the present invention.

In the above two possible implementation manners, the method for the network device to determine the cell identity of the cell to which the first user equipment belongs is not limited in this embodiment of the present invention. Wherein, the cell identifier may be a physical cell identifier (Physical Cell Identifier, PCI).

Optionally, the network device may determine the first cyclic shift factor corresponding to the first user equipment when the first user equipment initiates random access.

For a second user equipment located in the same cell as the first user equipment, the network device may assign a second cyclic shift factor that is the same as or different from the first cyclic shift factor to the second user equipment , that is, the cyclic shift factors of UEs in the same cell may be the same or different. For example, the network device allocates a cyclic shift factor of 1 to UE 1 in cell 1, and may allocate cyclic shift factor 1 or cyclic shift factor 2 to UE 2 in cell 1.

For a second user equipment in a second cell adjacent to the first cell to which the first user equipment belongs, the network device may assign a cyclic shift factor different from the first cyclic shift factor to the second user equipment. The second cyclic shift factor is to assign different cyclic shift factors to UEs in adjacent cells. For example, the network device allocates a cyclic shift factor of 1 to UE 1 in cell 1, and allocates a cyclic shift factor of 2 to UE 2 in cell 2, and the cyclic shift factor 1 and cyclic shift factor 2 are different.

For a second user equipment in a second cell that is not adjacent to the first cell to which the first user equipment belongs, the network device may allocate the same or the same cyclic shift factor as the first cyclic shift factor to the second user equipment. different second cyclic shift factors.

The cyclic shift factor that the network device may assign to user equipment within its coverage is an integer greater than or equal to zero, and the first cyclic shift factor and the second cyclic shift factor are both integers greater than or equal to zero. If the cyclic shift factor is equal to zero, it may indicate that the cyclic shift may not be performed.

After the network device determines the first cyclic shift factor, it may notify the first user equipment through downlink notification signaling.

Specifically, the network device sends a first downlink notification signaling to the first user equipment, where the first downlink notification signaling carries information about the first cyclic shift factor, that is, the network device sends The downlink notification signaling notifies the user equipment of the information of the cyclic shift factor. Wherein, the information of the first cyclic shift factor may be the specific value of the first cyclic shift factor, or the number or identifier of the first cyclic shift factor (a number or identifier corresponds to a cyclic shift factor). The specific value of the bit factor), may also be other information that indirectly indicates the specific value of the first cyclic shift factor.

The first downlink notification signaling carries information about the first cyclic shift factor, and is used to notify the first user equipment to cyclically shift the first time-domain signal according to the first cyclic shift factor, The first downlink notification signaling may be message 2 and message 4 in the random access process, may also be media access control (Media Access Control, MAC) layer signaling, and may also be radio resource control (Radio Resource Control) , RRC) signaling or other high-level signaling, which is not limited in this embodiment of the present invention.

Optionally, the network device sends second downlink notification signaling to the second user equipment, where the second downlink notification signaling carries information of the second cyclic shift factor. The second user equipment may be located in the same cell as the first user equipment, or may be located in a second cell adjacent to the first cell to which the first user equipment belongs, or may be located in a second cell adjacent to the first cell to which the first user equipment belongs. A second cell that is not adjacent to the first cell. If the second user equipment is located in a second cell adjacent to the first cell to which the first user equipment belongs, the second cyclic shift factor is different from the first cyclic shift factor.

After the network device determines the cell identity of the cell to which the first user equipment belongs, it may notify the first user equipment through broadcast signaling.

Specifically, the network device sends a first broadcast signaling to the first user equipment, where the first broadcast signaling carries information about the cell to which the first user equipment belongs, that is, the network device transmits information about the cell to which the first user equipment belongs. The broadcast notification signaling notifies all user equipments in the cell to which the first user equipment belongs to the information of the cell to which it belongs. The information about the cell to which it belongs may include a cell identifier, information indirectly indicating the cell identifier, and the like. Wherein, the first broadcast signaling may be a broadcast message including a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Synchronized Sample Scrambling, SSS), or other broadcast messages that may indicate the information of the cell to which it belongs. The combination of PSS and SSS is used to indicate the physical cell identity.

Optionally, if the second user equipment and the first user equipment are located in different cells, the network device may send a second broadcast signaling to the second user equipment, that is, the network device transmits the second broadcast signaling through the first user equipment. The second broadcast signaling notifies all user equipments in the cell to which the second user equipment belongs to the information of the cell to which it belongs. If the second user equipment is located in the same cell as the first user equipment, the second user equipment may obtain information about the cell to which it belongs through the first broadcast signaling.

Step S102: the first user equipment determines a first cyclic shift factor corresponding to the first user equipment;

In a possible implementation manner, the first user equipment receives the first downlink notification signaling sent by the network device, and determines the first downlink notification signaling according to the received first downlink notification signaling. The first cyclic shift factor corresponding to a user equipment, the first downlink notification signaling carrying information about the first cyclic shift factor allocated for the first user equipment. The first user equipment may acquire the specific value of the first cyclic shift factor according to the information of the first cyclic shift factor. If the information of the first cyclic shift factor is a specific value, the first user equipment may obtain it directly, and use the value to perform cyclic shift. If the information of the first cyclic shift factor is the number or identifier of the cyclic shift factor, the first user equipment obtains the specific value of the first cyclic shift factor according to a preset correspondence relationship, and the preset The corresponding relationship includes the corresponding relationship between the number or identifier of the cyclic shift factor and the specific value of the cyclic shift factor, and the preset corresponding relationship is stored in the network device and the first user equipment.

In a possible implementation manner, the first user equipment receives the first broadcast signaling sent by the network device, and obtains, according to the received first broadcast signaling, the The cell identity of the cell, for example, the first broadcast signaling is a broadcast message including PSS and SSS, and the first user equipment determines the PCI of the cell it belongs to according to the PSS and SSS. The first user equipment calculates according to the cell identifier to obtain the first cyclic shift factor corresponding to the first user equipment. The formula or method for calculating the cyclic shift factor by the first user equipment is the same as the formula or method for calculating the cyclic shift factor by the network device, so that the calculation results at both ends are the same.

Step S103: The first user equipment performs cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal;

Wherein, the first time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain, and the first reference sequence is the first reference sequence added before the sequence of the first reference signal. Sequence of CPs. It should be noted that the first uplink control information may be a sequence, or may be a plurality of modulation symbols, respectively corresponding to different load requirements. If the first uplink control information is a sequence, then the sequence of the first uplink control information is itself. If the first uplink control information is a plurality of modulation symbols, the first user equipment processes it to obtain a sequence of the first uplink control information.

Refer to FIG. 4, which is a schematic diagram of the basic structure of a single-symbol time-domain signal. The CP is added before the RS. The RS in FIG. 4 can represent an uplink reference signal, for example, it can be a sounding reference signal (Sounding Reference Signal , SRS), a demodulation reference signal (Demodulation Reference Signal, DRS) used for uplink channel estimation, coherent detection and demodulation on the base station side; UCI in FIG. 4 represents uplink control information. It should be noted that adding the CP before the RS is performed before the DFT, which is different from the process of adding a cyclic prefix in FIG. 2 , and the length of the two additions of the CP may be different. In Fig. 4, RS and UCI represent one symbol, that is, represent a single symbol.

Wherein, the sequence of the first reference signal is a sequence of an uplink reference signal, which may be a ZC sequence, a Gold sequence, or the like. Assuming that the length of the sequence of the first reference signal is L, it can be expressed as z=[z ₀ ,...,z _L-1 ]; the length of the first CP is L ₁ ; the first reference sequence The length of L+L ₁ can be expressed as The length of the sequence of the first uplink control information is M, which can be expressed as d=[d ₀ ,...,d _M-1 ]. The length of the first time domain signal obtained by multiplexing the first reference sequence and the first uplink control information sequence in the time domain is N=M+L+L ₁ , which can be expressed as x=[z, d].

Assuming that the first cyclic factor is N _c , the first user equipment performs cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first The length of a cyclically shifted time-domain signal is N=M+L+L ₁ , which can be expressed as x _c =circshift(x, N _c ), where circshift means performing N _c cyclic shift on x.

Different values of _Nc lead to different structures of the obtained first cyclically shifted time-domain signals. Refer to FIG. 5 , which is a schematic structural diagram of four cyclically shifted time-domain signals. If N _c is zero, that is, no cyclic shift is performed, the structure of the first cyclically shifted time-domain signal may be as shown in the first row of FIG. 5 , which is the same as that shown in FIG. 4 . If N _c is M/2, the structure of the first cyclically shifted time-domain signal may be as shown in the second row of FIG. 5 . If N _c is M, the structure of the first cyclically shifted time-domain signal may be as shown in the third row of FIG. 5 . If N _c is M+L, the structure of the first cyclically shifted time-domain signal may be as shown in the fourth row of FIG. 5 . It should be noted that the four structures shown in FIG. 5 are for example only, and do not constitute a limitation to the embodiment of the present invention. Practical applications include but are not limited to these four structures.

Different user equipments may perform cyclic shift processing on respective corresponding time-domain signals according to respective corresponding cyclic shift factors to obtain respective corresponding cyclic-shifted time-domain signals. Due to the different values of N _c , the structure of the cyclically shifted time-domain signal is different, which can be used for inter-cell interference randomization. The network device assigns different N _c to user equipments in adjacent cells, which can prevent RSs of adjacent cells from colliding in the time domain, thereby achieving the purpose of randomized interference.

It should be noted that the length of the first cyclic prefix is an integer greater than or equal to zero, and the specific value is not limited in this embodiment of the present invention. When the length of the first cyclic prefix is zero, different cyclic shift factors may still be used between cells to randomize interference.

Step S104: the first user equipment performs discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal;

The first user equipment performs N-point DFT processing on x _c to obtain a first frequency domain signal, and the first frequency domain signal may be expressed as X _c =dft(x _c ).

Step S105: The first user equipment performs frequency domain processing on the first frequency domain signal to obtain a first signal to be sent;

Wherein, the frequency domain processing includes conventional processing procedures such as subcarrier mapping, IFFT, and CP addition. The first user equipment may map X _c to several subcarriers in the frequency domain according to the scheduling information sent by the network equipment.

The first user equipment may map _Xc to consecutive subcarriers, for example, refer to _FIG . The consecutive subcarriers are subcarrier k to subcarrier k+N-1.

The first user equipment can map X _c to equally spaced distribution (comb) subcarriers, for example, refer to FIG _. On the subcarriers of , the interval is D, where D is an integer greater than 1, and the specific numerical value is not limited in the embodiment of the present invention. Mapping X _c to equally spaced (comb) subcarriers can improve frequency domain diversity and ensure low PAPR.

It can be understood that the frequency domain signal corresponding to UE 1 and the frequency domain signal corresponding to UE 2 can be comb-shaped frequency division multiplexed, and the structure of the cyclically shifted time domain signal corresponding to UE2 can be the same as that of the cyclically shifted time domain signal corresponding to UE1. The fields have the same or different structure. In other words, frequency domain signals corresponding to cyclically shifted time domain signals of different structures can be comb-shaped frequency division multiplexed.

Step S106: the first user equipment sends the first signal to be sent; optionally, the first user equipment sends the first signal to be sent to the network device;

It can be understood that the first signal to be sent carries the sequence of the first reference signal and the sequence of the first uplink control information. The first user equipment may send the first signal to be sent to the network device through a radio frequency module.

Step S107: the network device receives the first signal to be sent; optionally, the network device receives the first signal to be sent sent by the first user equipment;

Based on the basic structure of the time-domain signal shown in Figure 4, due to the existence of the CP, the RS will not suffer from the multipath interference of UCI, and the convolution of the RS and the channel is converted into a circular convolution, so that the network equipment can use a variety of channels The estimation algorithm obtains the frequency domain channel response of the channel. After obtaining the channel response in the frequency domain, the network equipment can use the equalization algorithm to compensate the fading channel of the composite signal of RS and UCI, eliminate the multipath effect, and eliminate the multipath interference of RS to UCI at the same time. Therefore, even if UCI does not add an extra CP before DFT, network equipment can protect it from RS interference by proper signal processing steps. Compared with before DFT, the scheme of adding CP before RS and before UCI can save additional overhead.

Optionally, the network device may perform signal processing on the first signal to be sent according to the first cyclic shift factor to obtain the first reference signal sequence and the first uplink control information sequence, and then obtain The first reference signal and the first uplink control information. The network device may sequentially perform decyclic prefix, fast Fourier transform, desubcarrier mapping, inverse discrete Fourier transform, and inverse discrete Fourier transform on the first signal to be transmitted based on the inverse processing procedure in FIG. The first time-domain signal is obtained through de-cyclic shift processing of the shift factor, so as to obtain the first reference signal sequence and the first uplink control information sequence.

Optionally, the network device may receive a second signal to be sent sent by the second user equipment. The second cell to which the second user equipment belongs is adjacent to the first cell to which the first user equipment belongs, and the second cyclic shift factor corresponding to the second user equipment is different from the first cyclic shift factor same. The second signal to be sent is a signal obtained by the second user equipment through discrete Fourier transform and frequency domain processing on the second cyclically shifted time domain signal in sequence, and the second cyclically shifted time domain signal is the The signal obtained by the user equipment performing cyclic shift processing on the second time domain signal according to the second cyclic shift factor, the second time domain signal is multiplexing the second reference sequence and the second uplink control information in the time domain The signal obtained by the sequence. The network device may process the second signal to be sent according to the second cyclic shift factor to obtain the second reference signal sequence and the second uplink control information sequence, and then obtain the second reference signal sequence. signal and the second uplink control information. Similarly, the network device may obtain the second reference signal sequence and the second uplink control information sequence based on the reverse processing procedure in FIG. 2 .

In the method described in Figure 3, after determining the cyclic shift factor, the user equipment cyclically shifts the time-domain signal according to the cyclic shift factor, and then performs DFT processing and frequency domain processing to obtain the signal to be transmitted, and sends the signal to be transmitted The signal is cyclically shifted in the time domain to achieve the purpose of randomizing inter-cell interference. Since the cyclic prefix is added before the sequence of the reference signal of the time domain signal, multipath interference between the uplink control information and the reference signal can be avoided.

The method described in FIG. 3 takes one user equipment as an example. Based on the method described in FIG. 3 , the embodiment of the present invention can also implement multiplexing of multiple user equipments in the same cell. The following introduces two user equipments in the same cell as an example, and the two user equipments may be UE1 and UE2.

Before UE 1 and UE 2 perform cyclic shift, the network device determines that the RS sequence corresponding to UE 1 is z ₁ , and determines that the RS sequence corresponding to UE 2 is z ₂ , z ₁ and z ₂ are orthogonal sequences, in order to resist multipath Effect, the most typical orthogonal method of two sequences is time-domain cyclic shift, that is, z ₁ and z ₂ are different cyclic shifted versions of the same root sequence. In other words, the multiplexing mode of z ₁ and z ₂ is code division multiplexing, and besides realizing code division multiplexing through time-domain cyclic shift, code division multiplexing can also be realized in other ways. After the network device determines z ₁ and z ₂ , it can notify UE 1 and z ₁ of the sequence number or other information through downlink signaling; notify UE 2 and z ₂ of the sequence number or other information, so that UE 1 and UE 2 respectively Time-division multiplexing is performed by using z ₁ , z ₂ and the sequence of UCI 1 and the sequence of UCI 2 to obtain time-domain signal 1 and time-domain signal 2 . Wherein, the downlink signaling may be the downlink notification signaling in the method described in FIG. 3 , or other downlink signaling for notifying the UE which reference signal to use.

For the small load scenario where the uplink control information loads 1-2 bits, before UE 1 and UE 2 perform cyclic shift, the network device can notify UE 1, the sequence number of UCI 1 or other information through downlink signaling; notify UE 2, The sequence number of UCI 2 or other information, so that UE 1 and UE 2 can time-division multiplex the sequence of UCI 1 and the sequence of UCI 2 respectively to obtain time-domain signal 1 and time-domain signal 2. In other words, the multiplexing method of UCI 1 and UCI 2 is code division multiplexing. In this case, the code division multiplexing may be realized by time-domain cyclic shift, orthogonal mask, or other methods.

For high-load scenarios with a large number of uplink control information load bits, UCI 1 and UCI 2 can be distinguished through space division multiplexing, that is, UE 1 sends the first signal to be sent carrying UCI 1, and UE 2 sends a signal carrying UCI 2. The second signal to be sent. The network device can distinguish the respective UCIs of the two UEs through a signal processing method.

The signal transmission method provided by the embodiment of the present invention is suitable for the single-symbol short-term PUCCH scenario, and the two-symbol short-term PUCCH scenario can be extended based on the embodiment of the present invention. The structural diagram of the two-symbol time-domain signal can be referred to in Fig. 7.

In a possible implementation manner, referring to the first row of FIG. 7 , the structures of the time-domain signals of the two symbols are the same, which is a copy of the structure shown in FIG. 4 . Optionally, the cyclic shift factor corresponding to the first symbol may be different from the cyclic shift factor corresponding to the second symbol, and after determining the cyclic shift factor corresponding to the first symbol, the UE may, according to the cyclic shift factor corresponding to the first symbol The factor and the preset calculation formula calculate the cyclic shift factor corresponding to the second symbol. Optionally, the first symbol and the second symbol have different frequency domain positions, that is, frequency hopping.

In a possible implementation, please refer to the second row of Figure 7, the structure of the time-domain signal of the first symbol is the same as that shown in Figure 4, and the second symbol only includes UCI and does not include RS, which can save overhead . The UE can still cyclically shift the time-domain signal of two symbols according to the cyclic shift factor.

The two-symbol short-duration PUCCH scenario is different from the single-symbol short-duration PUCCH scenario except that the time-domain signal is different, and other processing procedures may be the same.

The method of the embodiment of the present invention has been described in detail above, and the device of the embodiment of the present invention is provided below.

Please refer to FIG. 8 . FIG. 8 is a schematic structural diagram of a signal transmission device provided by an embodiment of the present invention. The signal transmission device 301 may include a processing unit 3011 and a sending unit 3012 .

A processing unit 3011, configured to determine a first cyclic shift factor corresponding to the first user equipment;

The processing unit 3011 is further configured to perform cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is signals obtained by multiplexing the first reference sequence and the sequence of the first uplink control information;

The processing unit 3011 is further configured to perform discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal;

The processing unit 3011 is further configured to perform frequency domain processing on the first frequency domain signal to obtain a first signal to be sent;

A sending unit 3012, configured to send the first signal to be sent.

It should be noted that the signal transmission device 301 shown in FIG. 8 can implement the operation flow of the user equipment side of the embodiment shown in FIG. 3 , wherein the processing unit 3011 is configured to perform step S102, step S103, step S104 and step S105; The sending unit 3013 is configured to execute step S106. The signal transmission device 301 is, for example, any UE within the coverage area of the base station, and the signal transmission device 301 may also be an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) or a digital signal processor (Digital Signal Processor, DSP) or chip. If the signal transmission device 301 is a chip, the sending unit 3012 may be an output interface of the chip.

Please refer to FIG. 9 . FIG. 9 is a schematic structural diagram of another signal transmission device provided by an embodiment of the present invention. The signal transmission device 402 may include a processing unit 4011 and a receiving unit 4012 .

A processing unit 4011, configured to determine a first cyclic shift factor corresponding to the first user equipment;

The receiving unit 4012 is configured to receive a first signal to be sent sent by the first user equipment, where the first signal to be sent is the discrete Fourier transform of the first cyclically shifted time domain signal by the first user equipment in sequence A signal obtained through transformation and frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, the The first time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain.

It should be noted that the signal transmission apparatus 401 shown in FIG. 9 can realize the operation flow of the network device side of the embodiment shown in FIG. 3 , wherein the processing unit 4011 is used to perform step S101; the sending unit 4012 is used to perform step S107. The signal transmission device 401 is, for example, a base station, and the signal transmission device 401 may also be an ASIC or a DSP or a chip that implements related functions. If the signal transmission device 401 is a chip, the receiving unit may be an output interface of the chip.

As shown in FIG. 10 , the embodiment of the present invention also provides a first user equipment 302 . The first user equipment may be any UE within the coverage area of the base station, or a DSP, ASIC or chip that implements a related resource mapping function. The first user equipment 302 includes:

The memory 3021 is used to store programs; wherein, the memory can be random access memory (English: Random Access Memory, referred to as: RAM) or read-only memory (English: Read Only Memory, referred to as: ROM) or flash memory, wherein the memory can be located in a separate Located in the communication device, it may also be located inside the processor 3023 .

The transceiver 3022 can be a separate chip, or a transceiver circuit in the processor 3023 or an input and output interface. The transceiver 3022 is configured to send the first signal to be sent; the transceiver 3022 is also configured to receive the first downlink notification signaling or the first broadcast signaling sent by the network device.

The processor 3023 is configured to execute the program stored in the memory, and when the program is executed, the processor 3023 is configured to determine a first cyclic shift factor corresponding to the first user equipment; the processor 3023 is also configured to Perform cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is multiplexed in the time domain with the first reference sequence and the first The signal obtained by the sequence of the uplink control information; the processor 3023 is further configured to perform discrete Fourier transform processing on the first cyclically shifted time domain signal to obtain a first frequency domain signal; the processor 3023 is further configured to process the first frequency domain signal Perform frequency domain processing on the first frequency domain signal to obtain a first signal to be sent.

The transceiver 3021 , the memory 3022 , and the processor 3023 are optionally connected through a bus 3024 .

As shown in FIG. 11 , the embodiment of the present invention also provides a network device 402 . The network device may be a base station, or a DSP or an ASIC or a chip that implements a related resource mapping function. The network device 402 includes:

The memory 4021 is used to store programs; the memory may be RAM, ROM or flash memory, and the memory may be located in the communication device alone, or inside the processor 4042 .

The transceiver 4022 may be a separate chip, or may be a transceiver circuit in the processor 4023 or serve as an input/output interface. The transceiver 4022 is configured to receive a first signal to be transmitted sent by the first user equipment, where the first signal to be transmitted is the discrete Fourier transform performed by the first user equipment on the first cyclically shifted time domain signal in sequence, A signal obtained by frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, and the first The time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain. The transceiver 4022 is further configured to send the first downlink notification signaling or the first broadcast signaling to the first user equipment.

The processor 4023 is configured to execute the program stored in the memory, and when the program is executed, the processor 4023 is configured to determine a first cyclic shift factor corresponding to the first user equipment.

The transceiver 4021 , the memory 4022 , and the processor 4023 are optionally connected through a bus 4024 .

An embodiment of the present invention also provides a communication system, including the network device and the first user equipment in the foregoing embodiments.

The device in the embodiment of the present application may be a field-programmable gate array (Field-Programmable GateArray, FPGA), an application specific integrated chip (Application Specific Integrated Circuit, ASIC), or a system chip (Systemon Chip, SoC), or It can be a central processing unit (Central ProcessorUnit, CPU), a network processor (Network Processor, NP), a digital signal processing circuit (Digital Signal Processor, DSP), or a microcontroller (Micro Controller Unit, MCU), and may also be a programmable controller (Programmable Logic Device, PLD) or other integrated chips.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here. For the sake of convenience and brevity, the various method embodiments may also be referred to each other, and details are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (30)

1. A signal transmission method, characterized in that, comprising: The first user equipment determines a first cyclic shift factor corresponding to the first user equipment; The first user equipment performs cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is multiplexed in the time domain a reference sequence and a signal obtained from a sequence of the first uplink control information; The first user equipment performs discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal; The first user equipment performs frequency domain processing on the first frequency domain signal to obtain a first signal to be sent, and sends the first signal to be sent. 2. The method according to claim 1, wherein the first user equipment determining the first cyclic shift factor corresponding to the first user equipment comprises: The first user equipment determines a first cyclic shift factor corresponding to the first user equipment according to the received first downlink notification signaling, where the first downlink notification signaling carries Information about the allocated first cyclic shift factor. 3. The method according to claim 1, wherein the determining, by the first user equipment, the first cyclic shift factor corresponding to the first user equipment comprises: The first user equipment acquires the cell identity of the cell to which the first user equipment belongs according to the received first broadcast signaling, where the first broadcast signaling carries information about the cell to which the first user equipment belongs; The first user equipment calculates according to the cell identifier to obtain a first cyclic shift factor corresponding to the first user equipment. 4. The method according to any one of claims 1-3, wherein the first reference sequence is a sequence in which a first cyclic prefix is added before the sequence of the first reference signal, and the first cyclic prefix The length of is an integer greater than or equal to zero. 5. The method according to any one of claims 1-4, wherein if the first user equipment is located in a first cell, and the second user equipment is located in a second cell adjacent to the first cell, Then the first cyclic shift factor is different from the second cyclic shift factor corresponding to the second user equipment, and the first cyclic shift factor and the second cyclic shift factor are integers greater than or equal to zero. 6. The method according to any one of claims 1-4, wherein if the first user equipment and the second user equipment are located in the same cell, the sequence of the first reference signal is the same as that of the second user equipment. The multiplexing mode of the sequence of the second reference signal corresponding to the user equipment is code division multiplexing. 7. The method according to claim 6, wherein the multiplexing mode of the sequence of the first uplink control information and the sequence of the second uplink control information corresponding to the second user equipment is code division multiplexing or Space division multiplexing. 8. A signal transmission method, characterized in that, comprising: The network device determines a first cyclic shift factor corresponding to the first user equipment; The network device receives a first signal to be sent sent by the first user equipment, where the first signal to be sent is the discrete Fourier transform performed by the first user equipment on the first cyclically shifted time domain signal in sequence, A signal obtained by frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, and the first The time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain. 9. The method according to claim 8, wherein before the network device receives the first signal to be sent sent by the first user equipment, further comprising: sending, by the network device to the first user equipment, first downlink notification signaling, where the first downlink notification signaling carries information about the first cyclic shift factor allocated for the first user equipment, The first downlink notification signaling is used for the first user equipment to determine the first cyclic shift factor. 10. The method according to claim 8, wherein before the network device receives the first signal to be sent sent by the first user equipment, further comprising: The network device sends first broadcast signaling to the first user equipment, where the first broadcast signaling carries information about the cell to which the first user equipment belongs, and the first broadcast signaling is used for the first The user equipment obtains the cell identity of the cell to which the first user equipment belongs, and calculates the first cyclic shift factor corresponding to the first user equipment according to the cell identity. 11. The method according to any one of claims 8-10, wherein the first reference sequence is a sequence in which a first cyclic prefix is added before the sequence of the first reference signal, and the first cyclic prefix The length of is an integer greater than or equal to zero. 12. The method according to any one of claims 8-11, further comprising: The network device determines a second cyclic shift factor corresponding to the second user equipment, where the second cyclic shift factor is different from the first cyclic shift factor, and the second cell to which the second user equipment belongs is the same as The first cell to which the first user equipment belongs is adjacent; The network device receives a second to-be-sent signal sent by the second user equipment, where the second to-be-sent signal is that the second user equipment sequentially undergoes discrete Fourier transform, A signal obtained by frequency domain processing, the second cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the second time domain signal according to the second cyclic shift factor, the second The time domain signal is a signal obtained by multiplexing the second reference sequence and the second uplink control information sequence in the time domain. 13. The method according to any one of claims 8-11, further comprising: The network device determines a sequence of the first reference signal, determines a sequence of a second reference signal corresponding to a second user equipment located in the same cell as the first user equipment, and the sequence of the first reference signal is the same as the sequence of the first reference signal The multiplexing mode of the sequence of the second reference signal is code division multiplexing. 14. The method according to claim 13, wherein the multiplexing mode of the sequence of the first uplink control information and the sequence of the second uplink control information corresponding to the second user equipment is code division multiplexing or Space division multiplexing. 15. A first user equipment, characterized by comprising a processor and a transceiver; The processor is configured to determine a first cyclic shift factor corresponding to the first user equipment; The processor is further configured to perform cyclic shift processing on the first time-domain signal according to the first cyclic shift factor to obtain a first cyclically shifted time-domain signal, and the first time-domain signal is A signal obtained by using the first reference sequence and the sequence of the first uplink control information; The processor is further configured to perform discrete Fourier transform processing on the first cyclically shifted time-domain signal to obtain a first frequency-domain signal; The processor is further configured to perform frequency domain processing on the first frequency domain signal to obtain a first signal to be sent; The transceiver is configured to send the first signal to be sent. 16. The first user equipment according to claim 15, wherein when the processor is configured to determine the first cyclic shift factor corresponding to the first user equipment, it is specifically configured to: The uplink notification signaling determines the first cyclic shift factor corresponding to the first user equipment, and the first downlink notification signaling carries information of the first cyclic shift factor allocated for the first user equipment. 17. The first user equipment according to claim 15, wherein when the processor is configured to determine the first cyclic shift factor corresponding to the first user equipment, it is specifically configured to: Obtaining the cell identity of the cell to which the first user equipment belongs through signaling, where the first broadcast signaling carries information about the cell to which the first user equipment belongs; calculating according to the cell identity to obtain the cell identity corresponding to the first user equipment The first cyclic shift factor. 18. The first user equipment according to any one of claims 15-17, wherein the first reference sequence is a sequence in which a first cyclic prefix is added before the sequence of the first reference signal, and the first reference sequence The length of a cyclic prefix is an integer greater than or equal to zero. 19. The first user equipment according to any one of claims 15-18, wherein if the first user equipment is located in a first cell, the second user equipment is located in a second cell adjacent to the first cell Two cells, the first cyclic shift factor is different from the second cyclic shift factor corresponding to the second user equipment, and the first cyclic shift factor and the second cyclic shift factor are greater than or equal to zero an integer of . 20. The first user equipment according to any one of claims 15-18, wherein if the first user equipment and the second user equipment are located in the same cell, the sequence of the first reference signal and the The multiplexing manner of the sequence of the second reference signal corresponding to the second user equipment is code division multiplexing. 21. The first user equipment according to claim 20, wherein the multiplexing method of the sequence of the first uplink control information and the sequence of the second uplink control information corresponding to the second user equipment is code division multiplexing or space division multiplexing. 22. A network device, comprising a processor and a transceiver, The processor is configured to determine a first cyclic shift factor corresponding to the first user equipment; The transceiver is configured to receive a first signal to be sent sent by the first user equipment, where the first signal to be sent is the discrete Fourier sequence of the first cyclically shifted time domain signal by the first user equipment. The signal obtained by leaf transformation and frequency domain processing, the first cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the first time domain signal according to the first cyclic shift factor, so The first time domain signal is a signal obtained by multiplexing the first reference sequence and the sequence of the first uplink control information in the time domain. 23. The network device of claim 22, wherein The transceiver is further configured to send a first downlink notification signaling to the first user equipment, where the first downlink notification signaling carries the first cyclic shift allocated for the first user equipment Factor information, the first downlink notification signaling is used for the first user equipment to determine the first cyclic shift factor. 24. The network device of claim 22, wherein The transceiver is further configured to send first broadcast signaling to the first user equipment, where the first broadcast signaling carries information about the cell to which the first user equipment belongs, and the first broadcast signaling is used for The first user equipment acquires a cell identity of the cell to which the first user equipment belongs, and calculates the first cyclic shift factor corresponding to the first user equipment according to the cell identity. 25. The network device according to any one of claims 22-24, wherein the first reference sequence is a sequence with a first cyclic prefix added before the sequence of the first reference signal, and the first cyclic prefix The length of the prefix is an integer greater than or equal to zero. 26. The network device according to any one of claims 22-25, characterized in that, The processor is further configured to determine a second cyclic shift factor corresponding to the second user equipment, where the second cyclic shift factor is different from the first cyclic shift factor, and the second cyclic shift factor to which the second user equipment belongs The second cell is adjacent to the first cell to which the first user equipment belongs; The transceiver is further configured to receive a second signal to be transmitted sent by the second user equipment, the second signal to be transmitted is the second cyclically shifted time domain signal sequentially processed by the second user equipment A signal obtained by Liye transform and frequency domain processing, the second cyclically shifted time domain signal is a signal obtained by the user equipment performing cyclic shift processing on the second time domain signal according to the second cyclic shift factor, The second time domain signal is a signal obtained by multiplexing the second reference sequence and the second uplink control information sequence in the time domain. 27. The network device according to any one of claims 22-25, characterized in that, The processor is further configured to determine a sequence of the first reference signal, determine a sequence of a second reference signal corresponding to a second user equipment located in the same cell as the first user equipment, and the sequence of the first reference signal The multiplexing mode of the sequence and the sequence of the second reference signal is code division multiplexing. 28. The network device according to claim 27, wherein the multiplexing method of the sequence of the first uplink control information and the sequence of the second uplink control information corresponding to the second user equipment is code division multiplexing or space division multiplexing. 29. A computer-readable storage medium, comprising instructions, which, when run on a computer, cause the computer to execute the method according to any one of claims 1-7. 30. A computer-readable storage medium, comprising instructions, which, when run on a computer, cause the computer to execute the method according to any one of claims 8-14.