WO2022036566A1

WO2022036566A1 - Control channel transmission method, terminal, network device and storage medium

Info

Publication number: WO2022036566A1
Application number: PCT/CN2020/109874
Authority: WO
Inventors: 左志松; 徐伟杰
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2022-02-24
Also published as: CN115868223A

Abstract

The embodiments of the present application disclose a control channel transmission method, a terminal, a network device and a storage medium. Said method comprises: a terminal acquiring a base sequence and uplink control information; cyclically shifting the base sequence on the basis of the uplink control information to obtain a first sequence; acquiring an orthogonal spread spectrum sequence, the orthogonal spread spectrum sequence being a sequence constituted by at least one spread spectrum parameter; performing spread spectrum on the first sequence according to the orthogonal spread spectrum sequence to obtain at least one second sequence, the at least one second sequence corresponding to the at least one spread spectrum parameter on a one-to-one basis; mapping the at least one second sequence onto a control channel; and transmitting the control channel.

Description

Transmission method, terminal, network device and storage medium of control channel

technical field

The present application relates to the field of communication technologies, and in particular, to a control channel transmission method, a terminal, a network device and a storage medium.

Background technique

In order to take into account high reliability, high flexibility and high efficiency, the New Radio (NR) system supports two types of Physical Uplink Control Channel (PUCCH), namely long PUCCH and short PUCCH; Format 1 in PUCCH can multiplex more users due to the use of time-domain spread spectrum, and has better coverage than other formats. However, format 1 needs to transmit a reference signal (Reference Signal, RS) on the PUCCH; this affects the coverage of the PUCCH.

SUMMARY OF THE INVENTION

The embodiments of the present application expect to provide a control channel transmission method, a terminal, a network device, and a computer-readable storage medium, which enhance the coverage of the control channel.

The technical solutions of the embodiments of the present application can be implemented as follows:

An embodiment of the present application provides a method for transmitting a control channel, which is applied to a terminal, including:

Acquiring a base sequence and uplink control information; cyclically shifting the base sequence based on the uplink control information to obtain a first sequence; acquiring an orthogonal spread spectrum sequence; the orthogonal spread spectrum sequence is composed of at least one spread spectrum parameter according to the orthogonal spreading sequence, the first sequence is spread to obtain at least one second sequence; the at least one second sequence corresponds to the at least one spreading parameter one-to-one; The at least one second sequence is mapped onto the control channel; the control channel is transmitted.

The embodiment of the present application provides a channel transmission method, which is applied to a network device, including:

receiving a control channel; at least one second sequence is mapped on the control channel; the at least one second sequence is used to represent uplink control information of the first terminal; wherein, the at least one second sequence is obtained by orthogonal spreading The sequence is obtained by spreading the first sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; the at least one second sequence is in one-to-one correspondence with the at least one spreading parameter; the first A sequence is obtained by cyclically shifting the base sequence based on the uplink control information.

An embodiment of the present application provides a terminal, including:

The acquisition module is used to acquire the base sequence and the uplink control information; the cyclic shift module is used to perform cyclic shift on the base sequence based on the uplink control information to obtain the first sequence; the acquisition module is also used to acquire the positive sequence. a cross-spreading sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; a spreading module is used to spread the first sequence according to the orthogonal spreading sequence, to obtain at least one second sequence; the at least one second sequence is in one-to-one correspondence with the at least one spreading parameter; a mapping module, configured to map the at least one second sequence to the control channel; a sending module, configured to The control channel is sent.

An embodiment of the present application provides a network device, including:

a receiving module, configured to receive a control channel; at least one second sequence is mapped on the control channel; the at least one second sequence is used to represent uplink control information of the first terminal; wherein, the at least one second sequence is Obtained by spreading the first sequence with an orthogonal spreading sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; the at least one second sequence and the at least one spreading parameter are one-to-one Correspondingly; the first sequence is obtained by cyclically shifting the base sequence based on the uplink control information.

An embodiment of the present application provides a terminal, including: a first processor and a first memory for storing a computer program that can run on the first processor,

Wherein, the first processor is configured to execute the steps of the above terminal-side control channel transmission method when running the computer program.

An embodiment of the present application provides a network device, including: a second processor and a second memory for storing a computer program that can run on the second processor,

Wherein, the second processor is configured to execute the steps of the above-mentioned method for transmitting a control channel on the network device side when running the computer program.

An embodiment of the present application provides a storage medium, which is applied to a terminal and stores a computer program. When the computer program is executed by one or more first processors, the first processors execute the above-mentioned terminal-side channel processing. transfer method.

An embodiment of the present application provides a storage medium, which is applied to a network device and stores a computer program. When the computer program is executed by one or more second processors, the second processor executes the above-mentioned network device side. The transmission method of the channel.

Embodiments of the present application provide a method for transmitting a control channel, a terminal, a network device, and a storage medium. The terminal acquires a base sequence and uplink control information; based on the uplink control information, the base sequence is cyclically shifted to obtain a first sequence; cross-spreading sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; according to the orthogonal spreading sequence, the first sequence is spread to obtain at least one second sequence; at least one second sequence and at least one Spread spectrum parameters are in one-to-one correspondence; at least one second sequence is mapped to the control channel, and the control channel is sent; that is, the terminal obtains first sequences representing different UCIs by cyclically shifting the base sequence, and then After the sequence is spread spectrum, it is mapped on the control channel, so that the control channel supports multi-user multiplexing without carrying RS signals, which enhances the coverage of the control channel.

Description of drawings

1 is a block diagram of a communication system provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a PUCCH format 2 provided by an embodiment of the present application;

3 is a schematic diagram of an RS pattern of PUCCH format 1 provided by an embodiment of the present application;

4 is a schematic flowchart of a method for transmitting a control channel according to an embodiment of the present application;

5 is a schematic flowchart of a method for carrying UCI on a control channel according to an embodiment of the present application;

FIG. 6 is a schematic diagram of interaction between a terminal and a network device according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram 1 of a terminal according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram 1 of a network device according to an embodiment of the present application;

FIG. 9 is a schematic diagram 2 of the structure and composition of a terminal according to an embodiment of the present application;

FIG. 10 is a second schematic diagram of the structure and composition of a network device according to an embodiment of the present application.

detailed description

FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application. The communication system may include: a terminal 101 and a network device 102 .

The terminal 101 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS), Terminal (terminal device) and so on. For the convenience of description, the devices mentioned above are collectively referred to as terminals. The network device 102 and the terminal 101 communicate with each other through a certain air interface technology, such as a Uu interface.

The network device 102 may be an evolved base station (evolved NodeB, eNB), an access point (access point, AP) or a relay station in a Long Term Evolution (Long Term Evolution, LTE) system, or a base station (such as a gNB) in a 5G system. Or transmission point (Transmission Point, TRP), etc. In the 5G NR-U system, the device with base station function is called gNodeB or gNB. As communication technology evolves, the description of "base station" may change. The network device 102 may also be a wireless controller, a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a network bridge in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, A router or a network device in a future communication system, it can also be a base station in the NTN system (such as gNB or Transmission Point (TRP), Global System of Mobile communication, GSM) system or Code Division Multiple Access ( The base station (Base Transceiver Station, BTS) of the Code Division Multiple Access (CDMA) system can also be the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) system. The application examples are not limited.

In addition, in this embodiment of the present application, the network device 102 provides services for a cell, and the terminal 101 communicates with the network device 102 through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be The cell corresponding to the network device 102 (for example, a base station), the cell may belong to a macro base station, or it may belong to a base station corresponding to a small cell (small cell), and the small cell here may include: urban cell (etro cell), micro cell (Micro cell) , Pico cell, Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services. In addition, the cell may also be a hypercell (Hypercell).

In the embodiments of the present application, multiple cells may work on the same frequency on a carrier in an LTE system or an NR system at the same time. In some special scenarios, the concepts of the above-mentioned carrier and cell may also be considered equivalent. For example, in a carrier aggregation (Carrier Aggregation, CA) scenario, when a secondary carrier is configured for the UE, it will carry both the carrier index of the secondary carrier and the cell identity (Cell Identification, Cell ID) of the secondary cell operating on the secondary carrier. In this case, it can be considered that the concepts of the carrier and the cell are equivalent, for example, the UE accessing a carrier is equivalent to accessing a cell.

In the embodiment of the present application, in order to take into account high reliability, high flexibility, and high efficiency, the NR system supports two types of PUCCH: long PUCCH and short PUCCH; wherein, the short PUCCH is for the case of small coverage, the symbol occupied in the time domain No more than 2; the long PUCCH occupies more symbols, and the coverage performance is better than that of the short PUCCH.

It should be noted that, in PUCCH, the short PUCCH includes two formats: format 0 and format 2; the occupied symbols do not exceed 2; wherein, format 0 represents different uplink control information by performing different cyclic shifts on 12 long sequences ( Uplink control information, UCI), no RS.

In this embodiment of the present application, the UCI carried in the PUCCH includes, but is not limited to: ACK/NACK information fed back by HARQ, scheduling request (Scheduling Request, SR), and channel status information (Channel Status Information, CSI).

Among them, ACK/NACK is determined by the terminal according to the demodulation result of the Physical Downlink Shared Channel (PDSCH); if the terminal can correctly receive the information on the PDSCH, it needs to send ACK on the corresponding PDCCH, otherwise it needs to send NACK; CSI describes the attenuation factor of the signal on the transmission path, such as signal scattering, environmental attenuation, distance attenuation and other information; it is obtained by the terminal through evaluation; SR is the information that the terminal applies for resources from the network side.

In this embodiment of the present application, format 0 may carry 1-2 bits of UCI. Exemplarily, Table 1 shows the mapping relationship between 1-bit ACK/NACK information and PUCCH format 0 sequence cyclic shift.

Table 1

ACK/NACKACK/NACK	NACKNACK	ACKACK
序列循环移位Sequence cyclic shift	m _cs＝0 m _cs = 0	m _cs＝6 m _cs = 6

Among them, m _cs represents the number of bits to cyclically shift the base sequence. The sequence obtained by cyclically shifting the base sequence by 6 bits represents the ACK information; the sequence obtained by cyclically shifting the base sequence by 0 bits, that is, the base sequence itself represents the NACK information.

Table 2

ACK/NACKACK/NACK	NACK，NACKNACK, NACK	NACK，ACKNACK, ACK	ACK，ACKACK, ACK	ACK，NACKACK, NACK
序列循环移位Sequence cyclic shift	m _cs＝0 m _cs = 0	m _cs＝3 m _cs = 3	m _cs＝6 m _cs = 6	m _cs＝9 m _cs = 9

Table 2 shows the mapping relationship between 2bit ACK/NACK information and PUCCH format 0 sequence cyclic shift. Each bit in the 2bit can correspond to a NACK or ACK information, so the 2bit information can include 4 kinds of UCI, each of which corresponds to a different number of bits of cyclic displacement. For example, the number of bits of the cyclic shift corresponding to the combination of NACK and NACK information is 0.

In this embodiment of the present application, format 2 can carry UCI larger than 2 bits, the RS overhead is 1/3, and the number of occupied PRBs can be set.

Exemplarily, Figure 2 shows a schematic structural diagram of PUCCH format 2. As shown in Figure 2, format 2 can occupy 1 to 16 RBs in the frequency domain, and the subcarrier indices occupied by the RS in the frequency domain are 1 and 4. , 7..., UCI information may occupy other subcarriers.

In this embodiment of the present application, the long PUCCH has three formats, including format 1, format 3, and format 4. The long PUCCH usually occupies more symbols and needs to carry RS information. As shown in Table 3, Table 3 is a long PUCCH format table of NR.

table 3

Wherein, the base sequence of format 1 is a ZC sequence with a length of 12 in the frequency domain, and the modulation symbol used to carry information is multiplied by the base sequence to obtain a modulated base sequence, which can represent different bearer information; If the information to be carried is 1 bit, it is modulated by Binary Phase Shift Keying (BPSK); if the information to be carried is 2 bits, it is modulated by Quadrature Phase Shift Keying (QPSK) Modulation; in order to achieve the effect of multi-user multiplexing, for the OFDM symbols of multiple UCIs in the time domain, the time domain Orthogonal Cover Code (OCC) can also be used to spread the modulated sequence; Format 3 occupies Format 4 supports frequency domain OCC spreading.

In the embodiment of this application, format 1, format 3, and format 4 all represent different information by modulating the base sequence by modulation symbols. Therefore, format 1, format 3, and format 4 all need to carry RS signals for the network to use. The modulated sequence is demodulated by the RS signal.

FIG. 3 shows a schematic diagram of the RS pattern of format 1 defined by the NR standard. As shown in FIG. 3, for one slot, RS is carried on even symbols (numbered from 0), and UCI is carried on odd symbols.

It should be noted that both UCI and RS are low peak-to-average ratio sequences using the ZC class. The information payload of UCI of format 1 is directly modulated on the sequence.

In this embodiment of the present application, format 3 and format 4 can carry more information, so relatively more UCI symbols are required. When no additional RS is configured, each frequency hopping part of PUCCH formats 3 and 4 includes one column of RSs. However, higher layers can configure additional RSs. After configuring additional RSs, if the number of time-domain symbols included in each frequency hopping part is not greater than 5, one column of RSs is included. If the number of time domain symbols included in each frequency hopping part is greater than or equal to 5, 2 columns of RSs are included. The UCI information of PUCCH formats 3 and 4 needs to be channel coded. The coded payload is modulated on the OFDM symbol of each UCI by means of DFT preprocessing.

In the embodiment of the present application, format 1 can multiplex more users, and the coverage performance is better; however, format 1 needs to carry RS, and there is an RS overhead, which affects the coverage performance of format 1.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

An embodiment of the present application provides a method for transmitting a control channel, which is applied to a terminal. As shown in FIG. 4 , the method includes:

S101. Acquire a base sequence and uplink control information.

In this embodiment of the present application, the uplink control information UCI is represented by a sequence; the terminal may obtain a base sequence first, process the base sequence to obtain different sequences, and use different sequences to represent different UCIs.

In this embodiment of the present application, the base sequence is a pseudo-random sequence. The base sequence may be obtained by the terminal according to a function index related to the time slot where the control channel is located and the terminal identifier.

Here, the length of the processed sequence is the same as the base sequence length. The length of the base sequence may be a positive integer multiple of 12, such as 12, 24, and 36, which is not limited in this embodiment of the present application.

S102. Based on the uplink control information, perform a cyclic shift on the base sequence to obtain a first sequence.

In this embodiment of the present application, after acquiring the UCI, the terminal may perform cyclic shift processing on the base sequence to obtain a first sequence, and the UCI is represented by the first sequence; the first sequence is a sequence obtained by cyclically shifting the base sequence; The sequence and base sequences are the same length.

It should be noted that different first sequences can be obtained with different cyclic shift bits for the base sequence, and different first sequences represent different UCIs; therefore, for different UCIs, the terminal needs to perform different cyclic shifts.

In some embodiments of the present application, the terminal may determine, based on the UCI, the number of bits of the cyclic displacement, that is, the cyclic displacement value; and then perform cyclic displacement on the base sequence according to the cyclic displacement value to obtain the first sequence.

In the embodiment of the present application, different cyclic displacement values can be set for different UCIs; after the terminal confirms the UCI to be sent, it can determine the corresponding cyclic displacement value according to the UCI, and then perform cyclic displacement on the base sequence according to the cyclic displacement value. , to obtain the first sequence representing the UCI.

Here, the maximum value of the cyclic shift value is related to the length of the base sequence. For example, the length of the base sequence is 12, and the number of bits of the cyclic shift may be 0 to 11; wherein, the cyclic shift is 0 bits, which corresponds to the base sequence itself.

Exemplarily, the base sequence is (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11). When the terminal receives the information on the PDSCH successfully, it needs to send an ACK to the network side. Based on Table 1, it is determined that the number of bits m _cs of the cyclic shift is 6, then the terminal cyclically shifts the base sequence by 6 bits to obtain the first sequence ( 6, 7, 8, 9, 10, 11, 0, 1, 2, 3, 4, 5), after the network device detects the first sequence, it can know that the terminal successfully receives the corresponding PDSCH.

It should be noted that, the larger the bit interval of the cyclic displacement between different first sequences, the smaller the correlation, the better the orthogonality, and the better the detection of the sequences.

S103. Obtain an orthogonal spread spectrum sequence; the orthogonal spread spectrum sequence is a sequence composed of at least one spread spectrum parameter;

S104. Spread the first sequence according to the orthogonal spreading sequence to obtain at least one second sequence; the at least one second sequence corresponds to at least one spreading parameter one-to-one;

In this embodiment of the present application, in order to enable multiple terminals to multiplex the control channel, after each terminal obtains the first sequence, it can spread the first sequence obtained by itself with an orthogonal spreading sequence to obtain at least one first sequence. Two sequences, the UCI of itself is represented by at least one second sequence.

In the embodiment of the present application, after the terminal spreads the first sequence, the number of the obtained second sequence is the same as the length value of the orthogonal spreading sequence; the orthogonal spreading sequence is composed of at least one spreading parameter, and the positive The number of spreading parameters in the cross-spreading sequence is the length of the orthogonal spreading sequence; wherein, each spreading coefficient corresponds to a second sequence; the length of each second sequence is the same as the length of the first sequence.

Exemplarily, the orthogonal spreading sequence is a sequence composed of seven spreading parameters, and then seven second sequences can be obtained by spreading the first sequence with the orthogonal spreading sequence.

S105. Map at least one second sequence to the control channel;

S106. Send a control channel.

In the embodiment of the present application, after obtaining at least one second sequence, the terminal needs to map the at least one second sequence to the control channel, and then send the control channel, so as to send the UCI of the terminal to the network device.

In this application, the number of the at least one second sequence is less than or equal to the number of symbols occupied by the control channel; the terminal may map each second sequence in the at least one second sequence to a corresponding symbol; Each of the second sequences is respectively mapped to a plurality of corresponding symbols, which is not limited in this embodiment of the present application.

In the embodiment of the present application, each element in the second sequence corresponds to a subcarrier, and the terminal may map the second sequence to the control channel in the order of the subcarriers from low to high, or the terminal may map the second sequence to the control channel in the order of subcarriers from high to high The bottom sequence is sequentially mapped to the control channel, and the embodiment of the present application does not limit the mapping manner in the frequency domain.

Exemplarily, if the terminal determines 3 second sequences, and the control channel occupies 6 symbols, the terminal may map each second sequence to 2 symbols.

In this embodiment of the present application, the terminal may sequentially map at least one second sequence to the symbols of the control channel from front to back in the time domain; for example, the first second sequence is mapped to the first symbol of the control channel, and the second One second sequence is mapped to the second symbol of the control channel, such a mapping; at least one second sequence may also be mapped to the corresponding symbol according to the preset correspondence, which is not limited in this embodiment of the present application .

It can be understood that the terminal obtains first sequences representing different UCIs by cyclically shifting the base sequence, then spreads the first sequence to obtain at least one second sequence, and maps the at least one second sequence on the control channel, While the control channel supports multi-user multiplexing, there is no need to carry RS signals, thereby reducing unnecessary wireless resource overhead and enhancing the coverage of the control channel.

In some embodiments of the present application, the implementation of acquiring the orthogonal spreading sequence in S103 may include:

S201. Obtain a spreading coefficient;

S202. Determine an orthogonal spreading sequence according to the spreading coefficient.

In this embodiment of the present application, the spreading coefficient is used to represent the multiplexing capability of the control channel. The size of the spreading coefficient is different, and the length of the determined orthogonal spreading sequence is different; the larger the spreading coefficient is, the more users can support multiplexing, and the smaller the spreading coefficient is, the fewer users can support multiplexing.

In the embodiment of the present application, the spreading coefficient may be preset in the standard, or configured by a network device, or determined by the terminal according to the time domain resources of the control channel, for which the embodiment of the present application does not limit.

In some embodiments of the present application, the terminal may determine the spreading coefficient according to the number of symbols occupied by the control channel.

In this embodiment of the present application, the correspondence between the number of symbols occupied by the control channel and the spreading coefficient may be preset, so that the terminal can determine the spreading factor according to the above correspondence after determining the number of symbols occupied by the control channel.

In the embodiment of the present application, the more symbols occupied by the control channel, the more users that can be supported for multiplexing, and the larger the spreading coefficient is.

In some embodiments of the present application, the control channel includes at least one symbol group; each symbol group includes at least one symbol; the at least one symbol group is in one-to-one correspondence with at least one spreading parameter; the terminal can obtain each symbol in the control channel The number of symbols in the group; the spreading coefficient is determined according to the number of symbols occupied by the control channel and the number of symbols in each symbol group.

In the embodiment of the present application, the symbols occupied by the control channel are divided into at least one symbol group, and each symbol group corresponds to a spreading parameter; here, the terminal can obtain the number of symbols in each symbol group, according to the symbols occupied by the control channel number and the number of symbols in each symbol group to determine the spreading factor.

In some embodiments of the present application, the number of symbols occupied by the control channel may be divided by the number of symbols in each symbol group to obtain a quotient value; the quotient value is rounded up to obtain a spreading coefficient.

Exemplarily, the terminal obtains the number of symbols occupied by the control channel 7 and the number of symbols in each symbol group 2, and obtains a quotient value of 3.5; rounds up 3.5 to 4, and obtains a spreading coefficient of 4; that is, the control channel It is divided into 4 groups, the first to third groups occupy 2 symbols, and the last group occupies 1 symbols.

The number of symbols in each symbol group may be configured by a high layer, or may be a preset fixed value, which is not limited in this embodiment of the present application.

In some embodiments of the present application, the implementation of determining the orthogonal spreading sequence according to the spreading coefficient in S202 may include:

S301. Obtain a target first orthogonal parameter; the target orthogonal parameter is a first orthogonal parameter corresponding to a terminal in at least one first orthogonal parameter;

S302. Determine an orthogonal spreading sequence according to the spreading coefficient and the target first orthogonal parameter.

In this embodiment of the present application, after determining the spreading coefficient, the terminal can determine the length of the orthogonal spreading sequence, so as to obtain at least one orthogonal spreading sequence of this length; at least one orthogonal spreading sequence is associated with at least one first The orthogonal parameters correspond, and each first orthogonal parameter corresponds to a terminal.

In the embodiment of the present application, the terminal needs to determine the first orthogonal parameter corresponding to itself from the at least one first orthogonal parameter, that is, the target first orthogonal parameter; and then determine from the at least one orthogonal spreading sequence and The orthogonal spreading sequence corresponding to the target first orthogonal parameter.

In some embodiments of the present application, the terminal may determine the target first orthogonal parameter based on the high-layer configuration.

In this embodiment of the present application, the target first orthogonal parameter may be directly configured by the high layer; that is, the terminal may directly obtain the target first orthogonal parameter configured by the high layer; the target first orthogonal parameter may also be based on Determined by parameters configured by other high layers, for example, the terminal may calculate the target first orthogonal parameter through its own resource index; here, the resource index may be a frequency and code domain index.

In some embodiments of the present application, in S302, determining the realization of the orthogonal spreading sequence according to the spreading coefficient and the target first orthogonal parameter may include:

S3011. Determine at least one second orthogonal parameter sequence according to the spreading coefficient; the length value of the second orthogonal parameter sequence is the same as the value of the spreading coefficient;

In this embodiment of the present application, the terminal determines at least one second orthogonal parameter sequence according to the spreading coefficient; wherein, the number of the at least one second orthogonal parameter sequence is the same as the value of the spreading coefficient; each second orthogonal parameter The length of the sequence is the same as the value of the spreading coefficient; that is, how many second orthogonal parameter sequences can be determined according to the value of the spreading coefficient, and how many second orthogonal parameter sequences are included in each second orthogonal parameter sequence a second quadrature parameter.

In the embodiment of the present application, the correspondence between the spreading coefficient and the at least one second orthogonal parameter sequence may be preset in the standard or configured on the network side, which is not limited in the embodiment of the present application.

Here, each second orthogonal parameter sequence corresponds to a different terminal, and at least one corresponding orthogonal spreading sequence is obtained by at least one second orthogonal parameter sequence.

It should be noted that the size of the spreading coefficient determines the length of the second orthogonal parameter sequence, thereby determining how many users multiplexing the control channel can support.

S3012. Determine a target second orthogonal parameter sequence from at least one second orthogonal parameter sequence according to the target first orthogonal parameter.

In the embodiment of the present application, after the terminal determines at least one second orthogonal parameter sequence, the terminal determines the target first orthogonal parameter from the at least one second orthogonal parameter sequence through the target first orthogonal parameter corresponding to itself, from the at least one second orthogonal parameter sequence. The target second orthogonal parameter sequence corresponding to the cross parameter; and then, the orthogonal spreading sequence of the terminal is determined by the target second orthogonal parameter sequence.

Wherein, the corresponding relationship between the at least one second orthogonal parameter sequence and the at least one orthogonal parameter may be preset in the standard, or may be configured on the network side, which is not limited in this embodiment of the present application.

Exemplarily, Table 4 is a correspondence table of the second orthogonal parameter sequence, the spreading coefficient and the orthogonal parameter. Based on Table 4, the terminal can determine the positive value of the terminal according to the spreading coefficient and the target orthogonal parameter. Cross-spreading sequence.

Table 4

As shown in Table 4,

is the spreading factor,

is the second orthogonal parameter sequence, and i is the first orthogonal parameter. If the terminal determines that the spreading coefficient is equal to 2, it means that the control channel supports multiplexing of two users, and the obtained two second orthogonal parameter sequences are: [0,0] and [0,1]; among them, [0,0] The corresponding first quadrature parameter i is 0, and the first quadrature parameter i corresponding to [0,1] is 1; after that, if the target quadrature parameter i acquired by the terminal is 1, it can determine the target second quadrature The parameter sequence is [0,1].

Wherein, the correspondence table between the second orthogonal parameter sequence, the spreading coefficient and the orthogonal parameter may be preset or configured by a network device, which is not limited in this embodiment of the present application.

It should be noted that Table 4 is only an example. In practical application, the spreading coefficient in the table can be greater than 7; the maximum value of the spreading coefficient in the table can be set as required. No restrictions apply.

S3013. Determine an orthogonal spreading sequence according to the target second orthogonal parameter sequence.

In this embodiment of the present application, the length of the target second orthogonal parameter sequence is the same as the length of the orthogonal spreading sequence; the terminal may determine the corresponding second orthogonal parameter according to at least one second orthogonal parameter in the target second orthogonal parameter sequence At least one spreading parameter, at least one spreading parameter constitutes an orthogonal spreading sequence.

It should be noted that the order of the at least one second orthogonal parameter in the target second orthogonal parameter sequence corresponds to the time domain order from front to back, and the corresponding at least one spreading parameter obtained by the at least one second orthogonal parameter is The order in the orthogonal spreading sequence is also correspondingly in the time domain order from front to back.

Exemplarily, if the target second orthogonal parameter sequence is [0,1], then the first second orthogonal parameter 0 in the sequence is at the front in the time domain, and the second second orthogonal parameter 1 in the sequence is at the back in the time domain. .

In some embodiments of the present application, the spreading parameters in the orthogonal spreading sequence are determined according to the target second orthogonal parameter sequence, as shown in formula (1):

where m=0,1,…,

w _i (m) is the mth spreading parameter in the orthogonal spreading sequence,

is the target second orthogonal parameter sequence; it can be seen that each spreading parameter in the orthogonal spreading sequence is a complex number, and the orthogonal spreading sequence is a complex number sequence with the same length as the target second orthogonal parameter sequence.

Exemplarily, based on Table 1, the terminal determines that the spreading coefficient is 2, and the target first orthogonal parameter i corresponding to the terminal is 1. After that, it can be determined that the target second orthogonal parameter sequence is [0, 1], and then the target second orthogonal parameter sequence can be determined to be [0,1]. out

Then according to formula (1), it is determined that w ₁ (0) is e ^j0 , and w ₁ (1) is e ^jπ ; then the orthogonal spreading sequence is [e ^j0 , e ^jπ ].

In some embodiments of the present application, the terminal may sequentially multiply at least one spreading parameter in the orthogonal spreading sequence with the first sequence in the time domain sequence from front to back to obtain at least one second sequence.

In the embodiment of the present application, the terminal multiplies the first spreading parameter in the orthogonal spreading sequence by the first sequence to obtain the first second sequence; and then compares the second spreading parameter with the first sequence. Multiply to obtain the second second sequence. In this way, the mth spreading coefficient is multiplied by the first sequence to obtain the mth second sequence, thereby obtaining at least one second sequence.

In some embodiments of the present application, the terminal may map the mth obtained second sequence in the at least one second sequence to the mth group of symbols of at least one symbol group; m is an integer greater than or equal to 0; m A time-domain order that characterizes at least one group of symbols.

In the embodiment of the present application, the second sequence mapped on the mth group of symbols can be obtained by formula (2):

Z _m (n)= _wi (m) y(n) Equation (2)

where n=0,1,...,

is the number of subcarriers on a resource block (Resource Block, RB), n represents the sequence length; Z _m (n) is the second sequence mapped on the mth group of symbols; y (n) is the first sequence, n represents sequence length.

Exemplarily, the spreading coefficient is 2, and the terminal determines an orthogonal spreading sequence with a length of 2, including two spreading parameters w _i (0) and w _i (1), and then obtains according to formula (2) in the first The 0th second sequence Z ₀ (n) mapped on the 0th group of symbols and the 1st second sequence Z ₁ (n) mapped on the 1st group of symbols.

In this embodiment of the present application, the terminal may first determine at least one second sequence, and then map the at least one second sequence to a corresponding symbol in a time domain sequence; The time domain sequence is mapped to the corresponding symbols, which is not limited in this embodiment of the present application.

It can be understood that the terminal can map different second sequences on different symbol groups of the control channel to represent its own UCI; that is, the second sequence mapped by the terminal in each group is the same, so that the The multiplexing of formats on the same time-frequency resources improves the use efficiency of time-frequency resources.

Exemplarily, the control channel occupies one time slot, with a total of 14 symbols; wherein, the number of symbols in each symbol group of the control channel is 2; FIG. 5 shows a schematic flowchart of the method for carrying UCI on the control channel; as shown in FIG. 5 . As shown, the method can include:

S1, the terminal obtains the uplink control information UCI and the base sequence, and performs a cyclic shift on the base sequence according to the UCI to obtain the first sequence y(n);

The description of S1 is the same as that of S101-S102, and details are not repeated here.

S2. Obtain an orthogonal spread spectrum sequence, and spread the first sequence according to the orthogonal spread spectrum sequence to obtain seven second sequences.

In this embodiment of the present application, the terminal determines an orthogonal spreading sequence with a length of 7, including 7 spreading parameters: w _i (0), w _i (1), . . . , w _i (6). The seven spread spectrum parameters are multiplied by the first sequence y(n) in order of time domain, that is, in the order of m from small to large, to obtain seven second sequences: Z ₀ (n), Z ₁ (n), ..., Z ₆ (n).

S3. Map the seven second sequences to the seven symbol groups of the control channel from front to back according to the time domain sequence.

In this embodiment of the present application, the terminal obtains 7 second sequences and maps them to corresponding symbol groups in time domain order; for example, Z ₀ (n) is the first obtained second sequence, which corresponds to the 0th group of symbols.

In this embodiment of the present application, each second sequence is mapped in a corresponding symbol group, and each symbol group includes 2 symbols; that is, the second sequence is mapped repeatedly within 2 symbols of each symbol group, so that , multiplexing on the same time-frequency resources as format 0, which occupies two symbols, can be realized.

In some embodiments of the present application, the terminal may map the mth obtained second sequence to the mth group of symbols in the order of subcarriers from low to high.

In this embodiment of the present application, the terminal maps the m-th obtained second sequence on the m-th group of symbols, and maps the m-th obtained second sequence in the order of subcarriers from low to high.

In some embodiments of the present application, if the control channel supports frequency hopping, the terminal can map the mth obtained second sequence to the first frequency hopping of the mth group of symbols; The number of carriers is greater than or equal to the length of the second sequence.

In this embodiment of the present application, the terminal needs to map the second sequence on consecutive subcarriers. If the control channel supports frequency hopping, and the terminal needs to map the mth obtained second sequence to the mth group of symbols, it can determine the number of subcarriers for each frequency hopping on each symbol in the mth group of symbols, and use A frequency hopping segment whose number of subcarriers is greater than or equal to the length of the second sequence is determined as the first segment frequency hopping, and the terminal may map the mth obtained second sequence to the first segment frequency hopping.

In some embodiments of the present application, the terminal may map the mth obtained second sequence to the first frequency hopping of the mth group of symbols in the order of subcarriers from low to high.

An embodiment of the present application provides a channel transmission method, which is applied to a network device, and the method includes:

S401. Receive a control channel;

At least one second sequence is mapped on the control channel; at least one second sequence is used to represent uplink control information of the first terminal; wherein, at least one second sequence is obtained by spreading the first sequence with an orthogonal spreading sequence; The orthogonal spreading sequence is a sequence composed of at least one spreading parameter; at least one second sequence corresponds to at least one spreading parameter one-to-one; and the first sequence is obtained by cyclically shifting the base sequence based on the uplink control information.

In the embodiment of the present application, the network device receives the control channel, and at least one second sequence is mapped on the control channel; the at least one second sequence is obtained by cyclically shifting the base sequence and spreading the spectrum; that is, the network device The UCI can be obtained by decoding the second sequence without performing coherent demodulation based on the RS, which improves the decoding efficiency of the network device.

In this embodiment of the present application, the control channel supports multi-user multiplexing, and the network device can determine the UCI of the first terminal corresponding to the at least one second sequence; the network device can decode any one of the at least one second sequence. Get that UCI.

In some embodiments of the present application, the orthogonal spreading sequences are determined according to spreading coefficients.

In some embodiments of the present application, the spreading factor is determined according to the number of symbols occupied by the control channel.

In some embodiments of the present application, the control channel includes at least one symbol group; the spreading factor is determined according to the number of symbols occupied by the control channel and the number of symbols in each symbol group in the at least one symbol group.

In some embodiments of the present application, the spreading coefficient is obtained by rounding up the quotient; the quotient is obtained by dividing the number of symbols occupied by the control channel by the number of symbols in each symbol group.

In some embodiments of the present application, the number of symbols in each symbol group is a high-level configuration; or, the number of symbols in each symbol group is a preset fixed value.

In some embodiments of the present application, the orthogonal spreading sequence is determined according to the spreading coefficient and the target first orthogonal parameter; the target first orthogonal parameter is an orthogonal parameter corresponding to the terminal in at least one orthogonal parameter.

In some embodiments of the present application, the first orthogonal parameter is determined based on a higher layer configuration.

In some embodiments of the present application, the arrangement order of at least one spreading parameter in the orthogonal spreading sequence represents the time domain order from front to back; at least one second sequence is at least one spreading parameter in the orthogonal spreading sequence The parameters are obtained by multiplying the first sequence in sequence in the time domain.

In some embodiments of the present application, the mth obtained second sequence in the at least one second sequence is mapped on the mth group of symbols of the at least one symbol group; m represents the time domain order of the at least one symbol group.

In this embodiment of the present application, the network device may first decode the second sequence mapped on the mth symbol group to obtain the UCI of the first terminal. If the decoding fails, it may continue to decode the second sequence on the m+kth symbol group. Two-sequence decoding is used to obtain the UCI of the first terminal; wherein, m and k can be set as required, which is not limited in this embodiment of the present application.

In this embodiment of the present application, the network device may receive the same second sequence on the symbols of each symbol group, thereby enabling multiplexing in time-frequency resources with formats of other control channels.

In some embodiments of the present application, the m-th obtained second sequence is mapped on the m-th group of symbols in an ascending order of subcarriers.

In some embodiments of the present application, the mth obtained second sequence is mapped to the first segment of frequency hopping on the mth group of symbols in the order of subcarriers from low to high; continuous subcarriers in the first segment of frequency hopping The number of is greater than or equal to the length of the second sequence.

In the embodiment of the present application, the manner of carrying information on the control channel, that is, the related description of at least one second sequence mapped on the control channel, has been described in detail on the terminal side, and will not be repeated here.

Based on the foregoing embodiment, the present application provides a schematic diagram of interaction between a terminal and a network device. As shown in FIG. 6 , the method includes:

S501. The terminal sends a control channel to a network device; at least one second sequence is mapped on the control channel; at least one second sequence is used to represent uplink control information of the terminal; wherein, at least one second sequence is paired by an orthogonal spread spectrum sequence The first sequence is obtained by spreading; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; at least one second sequence is in one-to-one correspondence with at least one spreading parameter; the first sequence is based on the uplink control information to the base sequence. obtained by cyclic displacement.

In the embodiment of the present application, the terminal obtains the first sequence used to characterize the UCI by cyclically shifting the base sequence, and then spreads the first sequence according to the orthogonal spreading sequence to obtain at least one second sequence, which will be at least one second sequence. A second sequence is mapped on the control channel, so that the control channel supports multi-user multiplexing without carrying RS signals, thereby reducing unnecessary wireless resource overhead and enhancing the coverage of the control channel; at the same time, it improves the network equipment decoding efficiency.

FIG. 7 is a schematic structural diagram 1 of a terminal provided by an embodiment of the present application. As shown in FIG. 7 , the terminal 7 includes:

an acquisition module 701, configured to acquire a base sequence and uplink control information;

A cyclic shift module 702, configured to perform a cyclic shift on the base sequence based on the uplink control information to obtain a first sequence;

The acquisition module 701 is further configured to acquire an orthogonal spread spectrum sequence; the orthogonal spread spectrum sequence is a sequence composed of at least one spread spectrum parameter;

A spreading module 703, configured to spread the first sequence according to the orthogonal spreading sequence to obtain at least one second sequence; the at least one second sequence is identical to the at least one spreading parameter. one correspondence;

a mapping module 704, configured to map the at least one second sequence to the control channel;

A sending module 705, configured to send the control channel.

In some embodiments, the obtaining module 701 is further configured to obtain a spreading coefficient; and determine the orthogonal spreading sequence according to the spreading coefficient.

In some embodiments, the obtaining module 701 is further configured to determine the spreading coefficient according to the number of symbols occupied by the control channel.

In some embodiments, the control channel includes at least one symbol group; the at least one symbol group is in one-to-one correspondence with the at least one spreading parameter; the acquiring module 701 is further configured to acquire the information in the control channel The number of symbols in each symbol group; the spreading coefficient is determined according to the number of symbols occupied by the control channel and the number of symbols in each symbol group.

In some embodiments, the obtaining module 701 is further configured to divide the number of symbols occupied by the control channel by the number of symbols of each symbol group to obtain a quotient; round the quotient upward to obtain the spreading factor.

In some embodiments, the number of symbols in each symbol group is a high-level configuration; or, the number of symbols in each symbol group is a preset fixed value.

In some embodiments, the obtaining module 701 is further configured to obtain a target first orthogonal parameter; the target first orthogonal parameter is a first orthogonal parameter corresponding to the terminal among at least one first orthogonal parameter parameter; determining the orthogonal spreading sequence according to the spreading coefficient and the target first orthogonal parameter.

In some embodiments, the first orthogonal parameter is determined based on a higher layer configuration.

In some embodiments, the arrangement order of the at least one spreading parameter in the orthogonal spreading sequence represents the time domain order from front to back; the spreading module 703 is further configured to arrange the at least one spreading parameter The at least one second sequence is obtained by multiplying the first sequence in sequence according to the time domain sequence.

In some embodiments, the mapping module 704 is further configured to map the mth obtained second sequence in the at least one second sequence to the mth group of symbols of the at least one symbol group; the m is an integer greater than or equal to 0; the m represents the time domain order of the at least one symbol group.

In some embodiments, the mapping module 704 is further configured to map the mth obtained second sequence to the mth group of symbols in the order of subcarriers from low to high.

In some embodiments, the control channel supports frequency hopping; the mapping module 704 is further configured to map the m-th obtained second sequence to the m-th sub-carrier in descending order of sub-carriers on the first frequency hopping of the group symbol; the number of consecutive subcarriers in the first frequency hopping is greater than or equal to the length of the second sequence.

FIG. 8 is a schematic diagram 1 of the structure and composition of a network device provided by an embodiment of the present application. As shown in FIG. 8 , the network device 8 includes:

A receiving module 801, configured to receive a control channel; at least one second sequence is mapped on the control channel; the at least one second sequence is used to represent uplink control information of the first terminal; wherein, the at least one second sequence It is obtained by spreading the first sequence with an orthogonal spreading sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter; the at least one second sequence is the same as the at least one spreading parameter. One-to-one correspondence; the first sequence is obtained by cyclically shifting the base sequence based on the uplink control information.

In some embodiments, the orthogonal spreading sequences are determined from spreading coefficients.

In some embodiments, the spreading factor is determined according to the number of symbols occupied by the control channel.

In some embodiments, the control channel includes at least one symbol group; the spreading factor is determined according to the number of occupied symbols of the control channel and the number of symbols in each symbol group of the at least one symbol group.

In some embodiments, the spreading coefficient is obtained by rounding up a quotient value; the quotient is obtained by dividing the number of symbols occupied by the control channel by the number of symbols in each symbol group.

In some embodiments, the orthogonal spreading sequence is determined according to the spreading coefficient and a target first orthogonal parameter; the target first orthogonal parameter is at least one orthogonal parameter corresponding to the terminal Orthogonal parameters.

In some embodiments, the arrangement order of the at least one spreading parameter in the orthogonal spreading sequence represents a time domain order from front to back; the at least one second sequence is at least one of the orthogonal spreading sequences A spreading parameter is obtained by multiplying the first sequence in sequence according to the time domain sequence.

In some embodiments, the mth obtained second sequence in the at least one second sequence is mapped on the mth group of symbols of the at least one symbol group; the m represents the time domain of the at least one symbol group order.

In some embodiments, the m-th obtained second sequence is mapped on the m-th group of symbols in a descending order of sub-carriers.

In some embodiments, the m-th obtained second sequence is mapped to the first frequency hopping segment on the m-th group of symbols in the order of subcarriers from low to high; in the first segment of frequency hopping The number of consecutive subcarriers is greater than or equal to the length of the second sequence.

FIG. 9 is a second schematic diagram of the structure and composition of a terminal according to an embodiment of the present application. As shown in FIG. 9 , the terminal 9 includes a first memory 901 , a first processor 902 , and is stored in the first memory 901 and can be accessed by the first processor 902 A computer program running on the computer program; wherein the first processor is configured to execute the channel transmission method on the terminal side as in the foregoing embodiment when the computer program is executed.

It can be understood that the terminal 9 further includes a bus system 903 ; various components in the terminal 9 are coupled together through the bus system 903 . It can be understood that the bus system 903 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 903 also includes a power bus, a control bus and a status signal bus.

FIG. 10 is a second schematic diagram of the structure and composition of a network device according to an embodiment of the present application. As shown in FIG. 10 , the network device 10 includes a second memory 1001, a second processor 1002, and is stored in the second memory 1001 and can be processed in the second The computer program running on the processor 1002; wherein, the second processor is configured to execute the channel transmission method on the network device side as in the foregoing embodiment when the computer program is executed.

It can be understood that the network device 10 further includes a bus system 1003 ; various components in the network device 10 are coupled together through the bus system 1003 . It can be understood that the bus system 1003 is used to realize the connection communication between these components. In addition to the data bus, the bus system 1003 also includes a power bus, a control bus, and a status signal bus.

It can be understood that the memory in this embodiment may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. The non-volatile memory may be Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable Programmable Read-Only Memory) , EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Magnetic Random Access Memory (FRAM), Flash Memory (Flash Memory), Magnetic Surface Memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory, CD-ROM); magnetic surface memory can be disk memory or tape memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of example but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (SSRAM), Memory (Dynamic Random Access Memory, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate Synchronous Dynamic Random Access Memory, DDRSDRAM), Enhanced Type synchronous dynamic random access memory (Enhanced Synchronous Dynamic Random Access Memory, ESDRAM), synchronous link dynamic random access memory (SyncLink Dynamic Random Access Memory, SLDRAM), direct memory bus random access memory (Direct Rambus Random Access Memory, DRRAM) ). The memories described in the embodiments of the present application are intended to include, but not be limited to, these and any other suitable types of memories.

The methods disclosed in the above embodiments of the present application may be applied to a processor, or implemented by a processor. A processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processors may be general-purpose processors, DSPs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The processor may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, the storage medium is located in a memory, and the processor reads the information in the memory, and completes the steps of the foregoing method in combination with its hardware.

Embodiments of the present application further provide a computer-readable storage medium on which a computer program is stored. When the computer-readable storage medium is located in a network device, when the computer program is executed by a first processor, the network device of the embodiment of the present application is implemented. Steps in a side channel transmission method.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and when the computer-readable storage medium is located in a terminal, when the computer program is executed by a second processor, the terminal side channel of the embodiment of the present application is implemented steps in the transfer method.

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

Industrial Applicability

In the embodiment of the present application, the terminal performs cyclic shift on the base sequence based on the uplink control information to obtain the first sequence, and then performs time-domain spreading on the first sequence to obtain at least one second sequence, and maps the at least one second sequence to the control On the channel, while the control channel supports multi-user multiplexing, there is no need to bear the RS, thereby enhancing the coverage of the control channel.

Claims

A method for transmitting a control channel, characterized in that, applied to a terminal, comprising:

Obtain base sequence and uplink control information;

Based on the uplink control information, performing a cyclic shift on the base sequence to obtain a first sequence;

obtaining an orthogonal spreading sequence; the orthogonal spreading sequence is a sequence composed of at least one spreading parameter;

Spread the first sequence according to the orthogonal spreading sequence to obtain at least one second sequence; the at least one second sequence corresponds to the at least one spreading parameter one-to-one;

mapping the at least one second sequence onto the control channel;

The control channel is sent.
The method according to claim 1, wherein the obtaining an orthogonal spread spectrum sequence comprises:

Get the spreading factor;

The orthogonal spreading sequence is determined according to the spreading coefficient.
The method according to claim 2, wherein the obtaining a spreading coefficient comprises:

The spreading factor is determined according to the number of symbols occupied by the control channel.
The method according to any one of claims 1-3, wherein the control channel includes at least one symbol group; the at least one symbol group is in a one-to-one correspondence with the at least one spreading parameter; the acquiring Spreading factors, including:

obtaining the number of symbols in each symbol group in the control channel;

The spreading factor is determined according to the number of symbols occupied by the control channel and the number of symbols in each of the symbol groups.
The method according to claim 4, wherein the determining the spreading coefficient according to the number of symbols occupied by the control channel and the number of symbols in each symbol group comprises:

The quotient is obtained by dividing the number of symbols occupied by the control channel by the number of symbols in each symbol group;

The quotient is rounded up to obtain the spreading coefficient.
The method according to claim 4 or 5, characterized in that, comprising:

The number of symbols in each symbol group is a high-level configuration; or,

The number of symbols in each symbol group is a preset fixed value.
The method according to any one of claims 2-6, wherein the determining the orthogonal spreading sequence according to the spreading coefficient comprises:

obtaining a target first orthogonal parameter; the target first orthogonal parameter is a first orthogonal parameter corresponding to the terminal among at least one first orthogonal parameter;

The orthogonal spreading sequence is determined according to the spreading coefficient and the target first orthogonal parameter.
The method of claim 7, wherein the first orthogonal parameter is determined based on a high layer configuration.
The method according to any one of claims 1-8, wherein the arrangement order of at least one spreading parameter in the orthogonal spreading sequence represents a time domain order from front to back; Cross-spreading sequence, spread spectrum on the first sequence to obtain at least one second sequence, including:

The at least one spreading parameter is sequentially multiplied by the first sequence according to the time domain sequence to obtain the at least one second sequence.
The method according to any one of claims 1-9, wherein the mapping the at least one second sequence to the control channel comprises:

mapping the mth obtained second sequence in the at least one second sequence to the mth group of symbols of the at least one symbol group; the m is an integer greater than or equal to 0; the m represents the The time domain order of at least one symbol group.
The method according to any one of claims 1-10, wherein the mapping the at least one second sequence to a symbol in the corresponding at least one symbol group comprises:

The m-th obtained second sequence is mapped to the m-th group of symbols in the order of sub-carriers from low to high.
The method according to any one of claims 1-11, wherein the control channel supports frequency hopping; and the mapping of the at least one second sequence to symbols in the corresponding at least one symbol group includes :

Mapping the mth obtained second sequence to the first frequency hopping of the mth group of symbols in the order of subcarriers from low to high; the number of consecutive subcarriers in the first frequency hopping greater than or equal to the length of the second sequence.
A method for transmitting a control channel, applied to a network device, characterized in that it includes:

receive control channel;

The control channel is mapped with at least one second sequence; the at least one second sequence is used to represent the uplink control information of the first terminal; wherein, the at least one second sequence The orthogonal spreading sequence is a sequence composed of at least one spreading parameter; the at least one second sequence is in one-to-one correspondence with the at least one spreading parameter; the first sequence is based on The uplink control information is obtained by cyclically shifting the base sequence.
The method of claim 13, wherein the orthogonal spreading sequence is determined according to a spreading coefficient.
The method according to claim 14, wherein the spreading coefficient is determined according to the number of symbols occupied by the control channel.
The method according to claim 14 or 15, wherein the control channel includes at least one symbol group; the spreading factor is based on the number of symbols occupied by the control channel and each symbol in the at least one symbol group The number of symbols in a symbol group is determined.
The method according to claim 16, wherein the spreading coefficient is obtained by rounding up a quotient value; the quotient is the number of symbols occupied by the control channel divided by the each symbol group number of symbols obtained.
The method of claim 16 or 17, comprising:

The number of symbols in each symbol group is a high-level configuration; or,

The number of symbols in each symbol group is a preset fixed value.
The method according to any one of claims 14-18, wherein the orthogonal spreading sequence is determined according to the spreading coefficient and a target first orthogonal parameter; the target first orthogonal parameter is an orthogonal parameter corresponding to the terminal among the at least one orthogonal parameter.
The method of claim 19, wherein the first orthogonal parameter is determined based on a higher layer configuration.
The method according to any one of claims 13-20, wherein the arrangement order of at least one spreading parameter in the orthogonal spreading sequence represents a time domain order from front to back; the at least one second The sequence is obtained by multiplying at least one spreading parameter in the orthogonal spreading sequence with the first sequence in sequence according to the time domain sequence.
The method according to any one of claims 13-21, wherein the second sequence obtained by the mth in the at least one second sequence is mapped on the mth group of symbols of the at least one symbol group; The m characterizes the time domain order of the at least one symbol group.
The method according to any one of claims 13-22, wherein the m-th obtained second sequence is mapped on the m-th group of symbols in an ascending order of subcarriers.
The method according to any one of claims 13-23, wherein the m-th obtained second sequence is mapped to the first segment of the m-th group of symbols in the order of sub-carriers from low to high On frequency hopping; the number of consecutive subcarriers in the first frequency hopping segment is greater than or equal to the length of the second sequence.
A terminal, characterized in that, comprising:

an acquisition module for acquiring the base sequence and uplink control information;

a cyclic shift module, configured to perform a cyclic shift on the base sequence based on the uplink control information to obtain a first sequence;

The acquisition module is further configured to acquire an orthogonal spread spectrum sequence; the orthogonal spread spectrum sequence is a sequence composed of at least one spread spectrum parameter;

A spreading module, configured to spread the first sequence according to the orthogonal spreading sequence to obtain at least one second sequence; the at least one second sequence and the at least one spreading parameter are one-to-one correspond;

a mapping module, configured to map the at least one second sequence to the control channel;

A sending module, configured to send the control channel.
A network device, characterized in that it includes:

a receiving module for receiving a control channel;

The control channel is mapped with at least one second sequence; the at least one second sequence is used to represent the uplink control information of the first terminal; wherein, the at least one second sequence is a The orthogonal spreading sequence is a sequence composed of at least one spreading parameter; the at least one second sequence corresponds to the at least one spreading parameter one-to-one; the first sequence is based on The uplink control information is obtained by cyclically shifting the base sequence.
A terminal, characterized in that the terminal comprises: a first processor and a first memory for storing a computer program that can run on the first processor;

Wherein, when the first processor is configured to execute the computer program, the steps of the method according to any one of claims 1 to 12 are executed.
A network device, characterized in that the network device comprises: a second processor and a second memory for storing a computer program that can run on the second processor;

Wherein, the second processor is configured to execute the steps of the method of any one of claims 13 to 24 when running the computer program.
A storage medium, applied to a network device, characterized in that a computer program is stored, and when the computer program is executed by one or more first processors, the processor executes the claims 1 to 12 The transmission method of any one of the channels.
A storage medium, applied to a terminal, characterized in that a computer program is stored, and when the computer program is executed by one or more second processors, the processor executes any of the claims 13 to 24. A transmission method of the described channel.