WO2018113045A1

WO2018113045A1 - Method and device for uplink information transmission

Info

Publication number: WO2018113045A1
Application number: PCT/CN2017/070371
Authority: WO
Inventors: 刘云; 王键; 王达
Original assignee: 华为技术有限公司
Priority date: 2016-12-19
Filing date: 2017-01-06
Publication date: 2018-06-28
Also published as: CN109155699B; CN109155699A

Abstract

A method and a device for uplink information transmission, being used for solving the technical problem that there are not enough symbols in a self-contained sub-frame to transmit uplink control signaling. The method for uplink transmission comprises: a terminal device determining M groups of physical resource blocks, M being a positive integer; the terminal device transmitting identical information bits on each group of physical resource blocks among the M groups of physical resource blocks, and transmitting a reference signal on each group of physical resource blocks among the M groups of physical resource blocks.

Description

Uplink information transmission method and device

The present application claims the priority of the Chinese Patent Application, filed on Dec. 19, 2016, the application Serial No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. in.

Technical field

The present invention relates to the field of mobile communications technologies, and in particular, to an uplink information transmission method and device.

Background technique

The fifth generation of mobile communication technology New Wireless (5G New Radio, 5G NR) is a newly proposed topic in the 3rd Generation Partnership Project (3GPP) organization, which is located in the release 14 version.

During the discussion of 5G NR, many companies jointly proposed self-contained sub-frames, as shown in Figure 1A, which are three structures of self-contained sub-frames. The self-contained sub-frame includes three parts, and the first part is a DL control, which can transmit a downlink grant (DL grant) or an uplink grant (UL grant), and is used to tell the user equipment (User Equipment, UE) resources how to configure of. The second part is a data part, and the downlink data may be transmitted by the Evolved Node B (eNB), or the uplink data may be transmitted by the UE according to the resource allocated by the previously received UL grant, and the second part further includes the guard interval. (Guard Period, GP). The third part is the uplink control (UL control). In the third part, the UE can reply a positive acknowledgement (ACK)/negative acknowledgement (NACK) to the previously received downlink data, or the UE can transmit channel state information (CSI). ) to assist the eNB in subsequent scheduling use. In some cases, the UL control portion may also be occupied by upstream data. In addition, in order to distinguish different types of subframes, a self-contained subframe for transmitting downlink data is referred to as a downlink-based self-contained subframe, and a self-contained subframe for transmitting uplink data is referred to as an uplink-based subframe. Self-contained sub-frames.

5G NR latest meeting minutes expenditure, single-signal UL control is a method that must be adopted in the standard, that is, in a self-contained subframe, only one symbol is reserved for transmitting the uplink control signal. Order, that is, as a UL control.

In the existing Long Term Evolution (LTE) system, one subframe includes 14 symbols in the time domain, and these 14 symbols can be used to transmit uplink control signaling. It can be seen that compared to LTE, there are not enough symbols in the self-contained subframe to transmit uplink control signaling.

Summary of the invention

The embodiment of the invention provides a method and a device for transmitting uplink information, which are used to solve the technical problem that there are not enough symbols in the self-contained subframe for transmitting uplink control signaling.

In a first aspect, an uplink information transmission method is provided, which is performed by a terminal device. The method includes: the terminal device determines M groups of physical resource blocks, and M is a positive integer. The terminal device transmits the same information bits on the physical resource blocks in each of the M groups of physical resource blocks, and transmits the reference signals on the physical resource blocks in each of the M groups of physical resource blocks.

In the embodiment of the present invention, the terminal device may be extended in the frequency domain, that is, the M group of physical resource blocks may be selected, and the same information bits are transmitted in the physical resource blocks included in each group, so that even in the time domain, A symbol is occupied, but more information bits can still be transmitted in the frequency domain, thereby solving the problem of time domain limitation, so that information bits can be transmitted as much as possible.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the terminal information device transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, and the M group physics Before transmitting the reference signal on the physical resource block in each group in the resource block, the terminal device spreads the information bits through the first spreading sequence, and spreads the reference signal through the second spreading sequence. The first spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the first spreading sequence used by all the physical resource blocks included in the M physical resource block is different, or the M group physical Some of the first spreading sequences used by all the physical resource blocks included in the resource block are the same. The second spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the second spreading sequence used by all the physical resource blocks included in the M physical resource block is different, or the M physical resource blocks are different. A portion of the second spreading sequence used by all of the included physical resource blocks is the same.

The terminal device may first spread the information bits and the reference signal and then transmit the information to reduce interference and improve information transmission quality.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the first spreading sequence is the same, the phase of the first spreading sequence is the same, and the first spreading sequence is different. It means that the phase of the first spreading sequence is different.

In conjunction with the first possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the second spreading sequence is the same, the phase of the second spreading sequence is the same, and the second spreading sequence is different. It means that the phase of the second spreading sequence is different.

As explained above, how the two spreading sequences are the same is different.

With reference to the first possible implementation manner of the first aspect, the possible implementation manner of the third possible implementation manner, in the fourth possible implementation manner of the first aspect, the terminal device further passes the M group The physical resource block transmits other multiple information bits. The terminal device spreads a plurality of information bits by using a plurality of spreading sequences when transmitting a plurality of information bits, and the plurality of spreading sequences are orthogonal to the first spreading sequence.

That is, the terminal device can multiplex M sets of physical resource blocks to transmit multiple information bits, so that more information bits can be transmitted through limited resources, and resource utilization and information transmission efficiency are improved. Moreover, the terminal device uses different spreading sequences to spread different information bits, and different spreading sequences are orthogonal to each other, thereby reducing interference and enabling the network device to obtain multiple information bits.

With reference to the first possible implementation of the first aspect to any possible implementation of the fourth possible implementation, in a fifth possible implementation manner of the first aspect, if there is another terminal device The M-group physical resource block is multiplexed to transmit information bits and/or reference signals, and the spreading sequence used by the first spreading sequence to spread information bits transmitted by another terminal device to another terminal device is orthogonal to each other, and second The spreading sequence is spread orthogonal to the spreading sequence used by another terminal device to spread the reference signal transmitted by the other terminal device.

That is, in addition to a terminal device that can multiplex M sets of physical resource blocks to transmit multiple information bits, different terminal devices can also multiplex M sets of physical resource blocks to transmit respective information bits to be transmitted, and multiple terminal devices implement For resource reuse, improve resource utilization and information transmission efficiency. Moreover, different terminal devices use different spreading sequences to spread the information bits transmitted by the respective terminals, and different spreading sequences are orthogonal to each other, thereby reducing interference and enabling network devices to obtain different terminal devices for transmission. Multiple information bits.

With reference to the first possible implementation manner of the first aspect, the possible implementation manner of the fifth possible implementation manner, in the sixth possible implementation manner of the first aspect, the terminal device is in the M group physical The same information bits are transmitted on the physical resource blocks in each group in the resource block, and the reference signals are transmitted on the physical resource blocks in each of the M groups of physical resource blocks, including: the terminal device is in the M group physical resource blocks. The spread information bits are transmitted on the physical resource blocks in each of the groups, and the spread reference signals are transmitted on the physical resource blocks in each of the M sets of physical resource blocks.

That is to say, if the terminal device spreads the information bits and the reference signal, the terminal device transmits the spread information bits and the spread reference signal to reduce interference.

In conjunction with the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the first aspect, the terminal device is configured to spread the information bits by using the first spreading sequence, including: the terminal device divides the information bits into For at least two pieces of sub-information, the terminal device spreads at least two pieces of sub-information through at least two first spreading sequences. Wherein at least two first spreading sequences are orthogonal to each other.

The terminal device may divide the information bits into at least two sub-informations and then spread the at least two sub-informations respectively, that is, even if the transmission is performed in the same PRB, the transmitted information bits may be divided into multiple parts and differently used. The spreading sequence spreads the multiple portions separately to further reduce the PAPR.

In conjunction with the seventh possible implementation of the first aspect, in an eighth possible implementation manner of the first aspect, the terminal device transmits the spread spectrum on the physical resource block in each of the M groups of physical resource blocks The information bits include: the terminal device transmits the spread of the at least two pieces of sub-information on the physical resource blocks in each of the M groups of physical resource blocks.

If the terminal device divides the information bits into at least two sub-information and then spreads the at least two sub-informations respectively, the terminal device transmits the at least two sub-informations after the spreading.

In conjunction with the first aspect, in a ninth possible implementation of the first aspect, M is greater than or equal to two. Transmitting the same information ratio on the physical resource blocks in each of the M groups of physical resource blocks at the terminal device Before the special device, the terminal device divides the information bits into M sub-information. Then, the terminal device transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, including: each physical resource block included in the group of physical resource blocks of the M group of physical resource blocks. One of the M sub-information is transmitted. The M group physical resource block transmits M sub-information.

That is, the terminal device can allocate information bits to be transmitted to different physical resource block groups for transmission, and in this way, the diversity gain can be improved. Moreover, the terminal device can transmit the sub-information on each of the physical resource blocks of the set of physical resource blocks, and the repeated transmission is implemented for each sub-information to improve the success rate of the information transmission.

In conjunction with the ninth possible implementation of the first aspect, in a tenth possible implementation manner of the first aspect, each physical resource block included in a group of physical resource blocks in the M group of physical resource blocks of the terminal device Before transmitting one of the M pieces of sub-information, the terminal device spreads a sub-information by using the first spreading sequence. Then, the terminal device transmits one of the M pieces of sub-information on each physical resource block included in the group of physical resource blocks in the M group of physical resource blocks, including: a group of physical devices of the terminal device in the M group of physical resource blocks A spread sub-information is transmitted on each physical resource block included in the resource block.

That is, the terminal device can still spread the sub-information first, and then transmit the spread sub-information to reduce the interference.

With reference to the tenth possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, the terminal device transmits the reference signal on the physical resource block in each of the M groups of physical resource blocks Previously, the terminal device spreads the reference signal through the second spreading sequence. Then, the terminal device transmits the reference signal on the physical resource block in each of the M groups of physical resource blocks, including: the terminal device transmits the spread reference after the physical resource block in each group of the M group of physical resource blocks signal.

Whether it is information bits or reference signals, the terminal equipment can perform spreading and then transmission to reduce interference.

With reference to the ninth possible implementation manner of the first aspect, the possible implementation manner of the eleventh possible implementation manner, in the twelfth possible implementation manner of the first aspect, the terminal is configured A plurality of other information bits are also transmitted through the M group of physical resource blocks. The terminal device spreads a plurality of information bits by using a plurality of spreading sequences when transmitting a plurality of information bits, and the plurality of spreading sequences are orthogonal to the first spreading sequence.

With reference to any one of the possible implementations of the ninth possible implementation of the first aspect to the eleventh possible implementation manner, in the thirteenth possible implementation manner of the first aspect, The terminal device multiplexes the M groups of physical resource blocks to transmit information bits and/or reference signals, and the spreading sequence of the first spreading sequence and the information bits transmitted by another terminal device to another terminal device are orthogonal to each other. The spreading sequence in which the second spreading sequence is spread with the reference signal transmitted by the other terminal device to the other terminal device is orthogonal to each other.

With reference to the first aspect or the first possible implementation of the first aspect to any one of the thirteen possible implementation manners, in the fourteenth possible implementation manner of the first aspect, The terminal device determines the M group of physical resource blocks, including: the terminal device determines the M group of physical resource blocks according to the total number of physical resource blocks and the number of times the information bits need to be repeatedly transmitted.

A way is provided for the terminal device to select a physical resource block.

In a second aspect, an uplink information transmission method is provided, which is performed by a terminal device. The method includes: the terminal device determines P physical resource blocks, and P is a positive integer. The terminal device transmits information bits on the P physical resource blocks, wherein the information bits on each of the physical resource blocks are discontinuous.

For example, for one information bit, the terminal device may map the information bits into the P physical resource blocks by means of cross-mapping, and the symbols included in the information bits are not adjacent to each other, and have a certain interval, thereby improving the diversity gain. .

With reference to the second aspect, in a first possible implementation manner of the second aspect, the terminal device spreads the reference signal by using the second spreading sequence, and the terminal device transmits the spread reference signal on the P physical resource blocks. .

The terminal device transmits the reference signal through the P physical resource blocks in addition to the information bits transmitted through the P physical resource blocks. The reference signal may not be cross-mapped, so the terminal device may first spread the reference signal and then transmit it to reduce interference.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, if another terminal device multiplexes P physical resource block transmission reference signals, the second spreading sequence The spreading sequences spread with the reference signal transmitted by the other terminal device to the other terminal device are orthogonal to each other.

The other terminal devices can multiplex the P physical resource blocks to transmit the reference signal, and the other terminal devices do not need to exclusively occupy the transmission resources to send the reference signal to the network device, and directly multiplex the P physical resource blocks occupied by the terminal device. It saves transmission resources, improves resource utilization, and facilitates subsequent operations directly by other terminal devices. Moreover, the spreading sequence used by the other terminal devices is orthogonal to the second spreading sequence to reduce interference, so that the network device can correctly obtain the reference signals transmitted by different terminal devices.

In a third aspect, an uplink information transmission method is provided, which is performed by a terminal device. The method includes the terminal device transmitting information bits on K sub-symbols included in a symbol for transmitting information bits in a physical resource block, and transmitting the reference signal on remaining sub-symbols included in the symbol for transmitting the information bits. Wherein the symbol for transmitting information bits includes at least two sub-symbols.

The original symbol for transmitting information bits is divided into at least two sub-symbols, and at least two sub-symbols can transmit both information bits and reference signals, so that the original symbols can be completed without the original symbol length being changed. More tasks to improve resource utilization.

With reference to the third aspect, in the first possible implementation manner of the third aspect, among the K sub-symbols Each sub-symbol carries the same information bits, or each of the K sub-symbols carries a different information bit.

That is, K sub-symbols can be used to transmit the same information bits, or K sub-symbols can be used to transmit different information bits in a flexible manner.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the symbol for transmitting the information bit in the physical resource block of the terminal device includes the K Before transmitting the information bits on the sub-symbols, the terminal device spreads the information bits through the first spreading sequence. Then, the terminal device transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, including: the terminal device transmits the spread information bits on the K sub-symbols.

Before transmitting the information bits on the K sub-symbols, the terminal device may first spread the information bits and then transmit the spread information bits, thereby reducing interference and improving the information transmission success rate.

With the second possible implementation of the third aspect, in a third possible implementation manner of the third aspect, if another terminal device multiplexes K sub-symbols to transmit information bits, the first spreading sequence and the other A spreading sequence in which a terminal device spreads information bits transmitted by another terminal device is orthogonal to each other.

Different terminal devices can multiplex K sub-symbols to transmit information bits to be transmitted, and multiple terminal devices implement multiplexing of resources, improve resource utilization and information transmission efficiency. Moreover, different terminal devices use different spreading sequences to spread the information bits transmitted by the respective terminals, and different spreading sequences are orthogonal to each other, thereby reducing interference and enabling the network device to correctly obtain different terminal device transmissions. Multiple information bits.

With reference to the third aspect or the first possible implementation manner of the third aspect to any one of the third possible implementation manners, in a fourth possible implementation manner of the third aspect, in the terminal Before transmitting the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits, the terminal device spreads the reference signal through the second spreading sequence. Then, the terminal device transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits, including: the terminal device transmits the spread reference signal on the remaining sub-symbols.

Before the terminal device transmits the reference signal on the remaining sub-symbols, the reference signal may be spread and then the spread reference signal is transmitted, thereby reducing interference and improving the information transmission success rate.

With the fourth possible implementation of the third aspect, in a fifth possible implementation manner of the third aspect, if another terminal device multiplexes the remaining sub-symbol transmission reference signals, the second spreading sequence and the other A spreading sequence in which a terminal device spreads a reference signal transmitted by another terminal device is orthogonal to each other.

Different terminal devices can reuse the remaining sub-symbols to transmit respective reference signals to be transmitted, and multiple terminal devices implement multiplexing of resources, improve resource utilization and information transmission efficiency. Moreover, different terminal devices use different spreading sequences to spread the respective reference signals transmitted, and different spreading sequences are orthogonal to each other, thereby reducing interference and enabling network devices to correctly obtain different terminal device transmissions. Multiple reference signals.

With reference to the third aspect or the first possible implementation manner of the third aspect, the possible implementation manner of the fifth possible implementation manner, in the sixth possible implementation manner of the third aspect, The number of sub-symbols included in the sub-symbol is even, and the remaining sub-symbols are discretely distributed on the sub-carriers included in the physical resource block, and the number of sub-symbols included on each sub-carrier occupied is an even number.

With reference to the third aspect or the first possible implementation manner of the third aspect, the possible implementation manner of the sixth possible implementation manner, in the seventh possible implementation manner of the third aspect, the remaining sub The symbol occupies an arbitrary position on the symbol used to transmit the uplink control signal.

That is to say, in the frequency domain, the sub-symbols carrying the reference signal (ie, the remaining sub-symbols) may be discretely distributed to improve the diversity gain. In the time domain, the sub-symbols carrying the reference signal can be distributed at any position in a flexible manner.

In a fourth aspect, a terminal device is provided, the terminal device comprising a processor and a transmitter. The processor is configured to determine M groups of physical resource blocks, and M is a positive integer. The processor is configured to transmit the same information bits on the physical resource blocks in each of the M sets of physical resource blocks, and transmit the reference signals on the physical resource blocks in each of the M sets of physical resource blocks.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the processor is further configured to: transmit, by the transmitter, the same information ratio on the physical resource block in each of the M groups of physical resource blocks And, before the reference signal is transmitted on the physical resource block in each of the M groups of physical resource blocks, the information bits are spread by the first spreading sequence, and the reference signal is performed by the second spreading sequence. Spread spectrum. The first spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the first spreading sequence used by all the physical resource blocks included in the M physical resource block is different, or the M group physical Some of the first spreading sequences used by all the physical resource blocks included in the resource block are the same. The second spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the second spreading sequence used by all the physical resource blocks included in the M physical resource block is different, or the M physical resource blocks are different. A portion of the second spreading sequence used by all of the included physical resource blocks is the same.

With reference to the first possible implementation manner of the fourth aspect, in the second possible implementation manner of the fourth aspect, the first spreading sequence is the same, the phase of the first spreading sequence is the same, and the first spreading sequence is different. It means that the phase of the first spreading sequence is different.

With the first possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the second spreading sequence is the same, the phase of the second spreading sequence is the same, and the second spreading sequence is different. It means that the phase of the second spreading sequence is different.

In conjunction with the first possible implementation of the fourth aspect, the possible implementation of the third possible implementation, in a fourth possible implementation of the fourth aspect, the transmitter is further configured to: The other plurality of information bits are transmitted through the M group of physical resource blocks. Wherein, when the transmitter transmits a plurality of information bits, the processor spreads the plurality of information bits by using a plurality of spreading sequences, and the plurality of spreading sequences are orthogonal to the first spreading sequence.

In combination with the first possible implementation manner of the fourth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the fourth aspect, if there is another terminal device The M-group physical resource block is multiplexed to transmit information bits and/or reference signals, and the spreading sequence used by the first spreading sequence to spread information bits transmitted by another terminal device to another terminal device is orthogonal to each other, and second The spreading sequence is spread orthogonal to the spreading sequence used by another terminal device to spread the reference signal transmitted by the other terminal device.

Combining the first possible implementation of the fourth aspect with any of the fifth possible implementations In a sixth possible implementation manner of the fourth aspect, the transmitter is configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, and, in the M Transmitting reference signals on physical resource blocks in each group in the group of physical resource blocks, including: transmitting the spread information bits on the physical resource blocks in each of the M groups of physical resource blocks, and, in the M group of physical The spread reference signal is transmitted on the physical resource block within each group in the resource block.

In conjunction with the sixth possible implementation of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the processor is configured to perform the spreading of the information bits by using the first spreading sequence, including: Dividing into at least two sub-informations, at least two sub-information are spread by at least two first spreading sequences. Wherein at least two first spreading sequences are orthogonal to each other.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the transmitter is configured to transmit the spread spectrum on the physical resource block in each of the M groups of physical resource blocks The information bits include: transmitting at least two pieces of spread information on the physical resource blocks in each of the M sets of physical resource blocks.

With reference to the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the processor is further configured to: before the transmitter transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks , the information bits are divided into M sub-information. Then, the transmitter is configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, including: on each physical resource block included in a group of physical resource blocks in the M group of physical resource blocks Transmit one of the M sub-information. The M group physical resource block transmits M sub-information.

In conjunction with the ninth possible implementation of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the processor is further configured to: include, in the set of physical resource blocks in the M group of physical resource blocks, the transmitter includes: A sub-information is spread by the first spreading sequence before transmitting one of the M sub-informations on each physical resource block. The transmitter is configured to transmit one of the M sub-informments on each of the physical resource blocks included in the set of physical resource blocks in the M group of physical resource blocks, including: a set of physical resource blocks in the M group of physical resource blocks includes A sub-information after spreading is transmitted on each physical resource block.

In conjunction with the tenth possible implementation of the fourth aspect, the eleventh possible In an implementation manner, the processor is further configured to: after the transmitter transmits the reference signal on the physical resource block in each of the M sets of physical resource blocks, spread the reference signal by using the second spreading sequence. The transmitter is configured to transmit the reference signal on the physical resource block in each of the M groups of physical resource blocks, including: transmitting the spread reference signal on the physical resource block in each of the M groups of physical resource blocks.

With reference to the ninth possible implementation manner of the fourth aspect, the possible implementation manner of the eleventh possible implementation manner, in the twelfth possible implementation manner of the fourth aspect, the transmitter further uses On: transmitting a plurality of other information bits through the M group physical resource block. The terminal device spreads a plurality of information bits by using a plurality of spreading sequences when transmitting a plurality of information bits, and the plurality of spreading sequences are orthogonal to the first spreading sequence.

With reference to any one of the possible implementation manners of the ninth possible implementation manner of the fourth aspect, the eleventh possible implementation manner of the fourth aspect, The terminal device multiplexes the M groups of physical resource blocks to transmit information bits and/or reference signals, and the spreading sequence of the first spreading sequence and the information bits transmitted by another terminal device to another terminal device are orthogonal to each other. The spreading sequence in which the second spreading sequence is spread with the reference signal transmitted by the other terminal device to the other terminal device is orthogonal to each other.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect to any one of the thirteen possible implementation manners, in the fourteenth possible implementation manner of the fourth aspect, The processor is configured to determine the M group of physical resource blocks, including: determining the M groups of physical resource blocks according to the total number of physical resource blocks and the number of times the information bits need to be repeatedly transmitted.

In a fifth aspect, a terminal device is provided, the terminal device comprising a processor and a transmitter. The processor is configured to determine P physical resource blocks, and P is a positive integer. The transmitter is used to transmit information bits on P physical resource blocks. The information bits on each of the physical resource blocks are not continuous.

In conjunction with the fifth aspect, in a first possible implementation manner of the fifth aspect, the processor is further configured to: perform a spreading on the reference signal by using the second spreading sequence. The transmitter is further configured to: transmit the spread reference signal on the P physical resource blocks.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, if another terminal device multiplexes P physical resource block transmission reference signals, the second expansion The spreading sequence spread by the frequency sequence with the reference signal transmitted by the other terminal device to the other terminal device is orthogonal to each other.

In a sixth aspect, a terminal device is provided, the terminal device comprising a transmitter. The transmitter is configured to transmit information bits on K sub-symbols included in a symbol for transmitting information bits in a physical resource block, and to transmit a reference signal on remaining sub-symbols included in a symbol for transmitting information bits. Wherein the symbol for transmitting information bits includes at least two sub-symbols.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, each of the K sub-symbols carries the same information bit, or each of the K sub-symbols carries different information bits.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the terminal device further includes a processor. The processor is configured to: spread the information bits by using the first spreading sequence before the transmitter transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block. Then, the transmitter transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, including: transmitting the spread information bits on the K sub-symbols.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, if another terminal device multiplexes K sub-symbol transmission information bits, the first spreading sequence and another A spreading sequence in which a terminal device spreads information bits transmitted by another terminal device is orthogonal to each other.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, the possible implementation manner of the third possible implementation manner, in the fourth possible implementation manner of the sixth aspect, the terminal The device also includes a processor. The processor is configured to: spread the reference signal by using the second spreading sequence before the transmitter transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits. Then, the transmitter transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits, including: transmitting the spread reference signal on the remaining sub-symbols.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, if another terminal device multiplexes the remaining sub-symbol transmission reference signal, the second spreading sequence The spreading sequences that are spread by the reference signal transmitted by the other terminal device to the other terminal device are orthogonal to each other.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, the possible implementation manner of the fifth possible implementation manner, in the sixth possible implementation manner of the sixth aspect, The remaining sub-symbols include an even number of sub-symbols, and the remaining sub-symbols are discretely distributed on the sub-carriers included in the physical resource block, and the number of sub-symbols included on each occupied sub-carrier is an even number.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, the possible implementation manner of the sixth possible implementation manner, in the seventh possible implementation manner of the sixth aspect, the remaining sub The symbol occupies an arbitrary position on the symbol used to transmit the uplink control signal.

In a seventh aspect, a terminal device is provided, the terminal device comprising a functional unit for performing the method provided by the first aspect or any of the possible implementations of the first aspect.

In an eighth aspect, a terminal device is provided, the terminal device comprising a functional unit for performing the method provided by the second aspect or any of the possible implementations of the second aspect.

In a ninth aspect, a terminal device is provided, the terminal device comprising a functional unit for performing the method provided by the third aspect or any of the possible implementations of the third aspect.

According to a tenth aspect, a computer storage medium is provided for storing computer software instructions for use in the terminal device, which includes any of the possible implementations for performing the first aspect or the first aspect, which are designed for the terminal device. program.

In an eleventh aspect, a computer storage medium is provided for storing computer software instructions for use in the terminal device, which includes any of the possible implementations for performing the second aspect or the second aspect, which are designed for the terminal device program of.

According to a twelfth aspect, a computer storage medium is provided for storing computer software instructions for use in the terminal device, which includes any possible implementation manner for performing the third aspect or the third aspect, which is designed for the terminal device program of.

In the embodiment of the present invention, the terminal device may be extended in the frequency domain, so that even if only one symbol is occupied in the time domain, more information bits can be transmitted in the frequency domain, thereby solving The problem of time domain limitation is determined, so that information bits can be transmitted as much as possible.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly described below. It is obvious that the following drawings are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1A is a schematic structural diagram of a self-contained subframe proposed in a 5G NR;

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

2 is a flowchart of an uplink information transmission method according to an embodiment of the present invention;

3A-3D are schematic diagrams of M group PRBs allocated to a terminal device according to an embodiment of the present invention;

4 is a schematic diagram of two manners for a terminal device to transmit information bits according to an embodiment of the present invention;

5A is a schematic diagram of a terminal device spreading a reference signal and an information bit according to an embodiment of the present invention;

FIG. 5B is a schematic diagram of spreading a reference signal and a plurality of information bits when a terminal device transmits a plurality of information bits through an allocated PRB according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of spreading a reference signal and an information bit by a terminal device of a bit when multiple terminal devices multiplex PRB according to an embodiment of the present disclosure;

7A-7C are schematic diagrams showing placement positions of DMRSs in a single PRB according to an embodiment of the present invention;

8A-8E are schematic diagrams showing placement positions of DMRSs in consecutive multiple PRBs according to an embodiment of the present invention;

FIG. 9 is a flowchart of an uplink information transmission method according to an embodiment of the present invention;

10A-10B are schematic diagrams of mapping information bits of a terminal device according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a terminal device copying transmission information bits according to an embodiment of the present invention;

12A-12B are reference parameters of a terminal device when multiplexing DMRS subcarriers according to an embodiment of the present invention; Schematic diagram of the spread spectrum of the test signal;

FIG. 13 is a flowchart of an uplink information transmission method according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of a terminal device transmitting a reference signal and information bits through sub-symbols according to an embodiment of the present invention; FIG.

FIG. 17 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the embodiments of the present invention.

Hereinafter, some of the terms in the embodiments of the present invention will be explained to facilitate understanding by those skilled in the art.

1) A terminal device, which is a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The user equipment can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN. The terminal device may include a UE, a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, a Remote Station, and a Pickup Station. Access Point (AP), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a portable, pocket, handheld, computer built-in or in-vehicle mobile device. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), wearable Style Equipment such as a smart watch or smart bracelet.

2) A network device, for example comprising a base station (e.g., an access point), may refer to a device in the access network that communicates over the air interface with the wireless terminal device over one or more sectors. The base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the wireless terminal device and the rest of the access network, wherein the remainder of the access network can include an IP network. The base station can also coordinate attribute management of the air interface. For example, the base station may include a Radio Network Controller (RNC) or a Base Station Controller (BSC), or may also include an evolved base station in an evolved LTE system (LTE-Advanced, LTE-A). (NodeB or eNB or e-NodeB, evolutional Node B), or may also include the next generation node B (NG-NB) in the 5G system, which is not limited in the embodiment of the present invention.

3) Information bits, which can be understood as uplink control information, for example, including the decoding result of the codeword sent by the terminal device to the received network device, and may also include other uplink control information.

4) The terms "system" and "network" in the embodiments of the present invention may be used interchangeably. "Multiple" means two or more, and in view of this, "a plurality" may also be understood as "at least two" in the embodiment of the present invention. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, the character "/", unless otherwise specified, generally indicates that the contextual object is an "or" relationship.

The application scenario of the embodiment of the present invention is described below. Please refer to FIG. 1B. FIG. 1B includes a network device and a terminal device, wherein the network device takes a base station as an example, and the base station provides a service for the terminal device. In FIG. 1B, the base station transmits a codeword to the terminal device through the downlink-based self-contained subframe, and the terminal device sends the information bit and the reference signal to the base station through the uplink-based self-contained subframe.

However, the number of symbols included in the self-contained subframe for transmitting uplink control signaling is not too large, and the self-contained subframe shown in FIG. 1A is taken as an example. In this self-contained subframe, only one is included. The number of symbols used for transmitting uplink control signaling is obviously small. Compared with the LTE system, there are not enough symbols in the self-contained subframe to transmit uplink control signaling.

The technical solution of the embodiment of the present invention is proposed to solve the technical problem. In the embodiment of the present invention, The terminal device can be extended in the frequency domain, that is, the M group of physical resource blocks can be selected, and the same information bits are transmitted in the physical resource blocks included in each group, so that even if only one symbol is occupied in the time domain, More information bits can still be transmitted in the frequency domain, thereby solving the problem of time domain limitation, so that information bits can be transmitted as much as possible.

The technical solution provided by the embodiments of the present invention can be used not only for a 5G system and a next-generation communication system, but also for a communication system such as a third-generation mobile communication system (3G) system or a fourth-generation mobile communication system (4G) system. For example, the technical solution provided by the embodiment of the present invention may be applied to the LTE system, and the embodiment of the present invention is not limited.

The technical solution provided by the embodiment of the present invention is described in the following with reference to the accompanying drawings. In the following description, the scenario shown in FIG. 1B is taken as an example, and the network device is a base station as an example.

Referring to FIG. 2, an embodiment of the present invention provides an uplink information transmission method, and a flow of the method is described as follows.

S21. The terminal device determines an M group physical resource block (PRB). M is a positive integer.

The terminal device may determine the M group PRBs in all available PRBs included in the uplink bandwidth allocated to the terminal device, and each group PRB in the M group PRB may include at least one PRB. The terminal device may determine the M group PRB according to the total number of PRBs (ie, X) and the number of times the information bits need to be repeatedly transmitted.

The number of available PRBs included in the uplink bandwidth allocated to the terminal device is X, and the X PRBs are sequentially numbered from low frequency to high frequency, or sequentially numbered from high frequency to low frequency, that is, numbers of X PRBs. 1, 2, ..., X, respectively. N times of frequency domain repeated transmission is required for the information bits, for example, N=2, as shown in FIGS. 3A and 3B, or N=4, as shown in FIGS. 3C and 3D. 3A-3D show that the terminal device determines three sets of PRBs, wherein the squares of the diagonal lines, the squares of the horizontal lines, and the blank boxes each represent a PRB in a group of PRBs. In order to improve the overall frequency domain diversity, the terminal device may select several PRBs in the frequency band for repeated transmission to achieve the effect of diversity gain. Then, the value of N can be specified by a standard or a protocol, or the terminal device can be notified in advance by the base station. At this time, the number of the PRB selected by the terminal device must meet the following requirements:

when

In the manner adopted by FIG. 3A and FIG. 3C, the number of the PRB selected by the terminal device belongs to the following group:

Or, when N is an even number, according to the manner adopted in FIG. 3A and FIG. 3C, the number of the PRB selected by the terminal device belongs to the following group:

when

In the manner shown in FIG. 3B and FIG. 3D, the number of the PRB selected by the terminal device belongs to the following group:

Or, when N is an even number, according to the manner shown in FIG. 3B and FIG. 3D, the number of the PRB selected by the terminal device belongs to the following group:

Where i is the number of the PRB.

In order to prevent the same signal from different PRB transmissions from increasing the Peak to Average Power Ratio (PAPR), the embodiment of the present invention proposes that different PRBs should use different spreading sequences for spreading processing, thereby reducing the overall PAPR. Optionally, if N=2, a spreading sequence may be used for spreading, the sequence is

or

Alternatively, the phase change of a column of the above matrix does not affect the phase difference between two elements before and after a certain row of the matrix, for example, the phase difference between the first element of the first row of the matrix and the second element of the first row is

Take

For example, the signal transmitted on the first PRB is the original signal, and the signal transmitted on the second PRB is the original signal multiplied by

The resulting signal is used to reduce the PAPR. Optionally, if N=4, a set of spreading sequences may be used for spreading, and the signal transmitted by one PRB is the original signal, and the subsequent PRBs are respectively multiplied by the elements corresponding to the spreading sequence.

After a set of PRBs is selected, the remaining PRBs can still be further selected and grouped, that is, in the formula shown above, different i values correspond to different PRB groups. Different PRB groups can be allocated to multiple terminal devices for transmission, or can be assigned to the same terminal device for transmission.

S22. The terminal device transmits the same information bit on the physical resource block in each of the M group physical resource blocks, and transmits the reference signal on the physical resource block in each of the M group physical resource blocks. The base station receives the same information bits on the physical resource blocks in each of the M sets of physical resource blocks, and receives the reference signals on the physical resource blocks in each of the M sets of physical resource blocks. In the embodiment of the present invention, the reference signal transmitted by the terminal device may include a Demodulation Reference Signal (DMRS), which is used for signal measurement.

Specifically, there are two ways for a terminal device to transmit information bits. In the first mode, one terminal device uses multiple sets of PRBs to transmit different information bits. In the second mode, one terminal device uses a set of PRBs to transmit different information bits. The following are introduced separately.

1. The first method: a terminal device uses multiple sets of PRBs to transmit different information bits.

The terminal device selects multiple sets of PRBs in the frequency domain according to the manner described in S21, that is, M is greater than or equal to 2. As shown in FIG. 4, the terminal device selects two sets of PRBs. The left side in Figure 4 represents the first mode, the right side represents the second mode, and the second mode will be described later. In the first mode, the shaded box represents a set of PRBs in the two sets of PRBs, and the blank boxes represent the remaining set of PRBs in the two sets of PRBs.

The terminal device divides the information bits to be transmitted into M sub-information, and at this time, M is greater than or equal to 2. For example, if the terminal device selects two sets of PRBs, the terminal device divides the information bits into two sub-information. For example, if the base station sends four codewords to the terminal device, the terminal device decodes the four codewords, and sends the decoding results of the four codewords to the base station through two sets of PRBs. Then, the terminal device can use a group of PRBs in the two sets of PRBs to transmit decoding results or other uplink control information for the first codeword and the second codeword, and utilize the remaining set of PRBs in the two sets of PRBs. The decoding result or the other uplink control information for the third code word and the fourth code word are transmitted. In addition, the terminal device also needs to transmit the DMRS through the two sets of PRBs. Specifically, how to transmit signals in a certain group of PRBs, as shown in FIG. 5A, is a transmission mode of sub-information a(0) in a PRB. In FIG. 5A, the shaded squares represent subcarriers used to transmit DMRS in the frequency domain, and the remaining blank squares represent subcarriers used to transmit information bits.

In the embodiment of the present invention, the terminal device transmits the same information bits on the PRBs in each group of the M groups of PRBs, and before the reference signals are transmitted on the PRBs in each group of the M groups of PRBs, The terminal device first spreads each sub-information through the first spreading sequence, and spreads the reference signal transmitted on each PRB through the second spreading sequence. After that, the terminal device transmits the spread sub-information on each PRB included in a group of PRBs in the M group of physical resource blocks, and transmits the spread spectrum on each PRB included in a group of PRBs in the M group of PRBs. Reference signal. The first spreading sequence used by all the PRBs included in the M group PRB is the same, or the first spreading sequence used by all the PRBs included in the M group PRB is different, or the first of all the PRBs included in the M group PRB is used. Some of the first spreading sequences are the same in the spreading sequence. The second spreading sequence used by all PRBs included in the M group PRB is the same, or the second spreading sequence used by all PRBs included in the M group PRB is different, or the second spreading frequency used by all PRBs included in the M group PRB Some of the second spreading sequences are identical in the sequence. The first spreading sequence is the same, and the phase of the first spreading sequence is the same. Correspondingly, the first spreading sequence is different, which means that the phase of the first spreading sequence is different. The second spreading sequence is the same, which means that the phases of the second spreading sequence are the same. Correspondingly, the second spreading sequence is different, which means that the phases of the second spreading sequence are different.

For example, for a certain terminal device, the second spreading sequence used for spreading the DMRS is [+1, +1, -1, -1] shown in FIG. 5A. The first spreading sequence used for spreading a sub-information is [+1, +1, -1, -1, +1, +1, -1, -1] shown in FIG. 5A, then, The sub-information transmitted on the PRB is [+1*a(0), +1*a(0), -1*a(0), -1*a(0), +1*a(0), + 1*a(0), -1*a(0), -1*a(0)]. On the remaining PRBs of the group of PRBs, the same method is also used for transmission. When the terminal device transmits another sub-information, another set of PRBs is used for transmission. The first spreading sequence used by another set of PRBs may be the same as or different from the first spreading sequence used by the set of PRBs, and the second spreading sequence used by another set of PRBs and the second spreading used by the set of PRBs The frequency sequences can be the same or different.

When receiving, each base station receives a signal transmitted on each PRB included in each group of PRBs, and multiplies a signal of a portion of the DMRS received on each PRB by a corresponding second spreading sequence to obtain channel parameters. The signal of the portion of the information bit received on each PRB is multiplied by the corresponding first spreading sequence and then compared with the measured channel parameters to obtain a plurality of information symbols. The result of each PRB on each group of PRBs is combined, and then the information bits transmitted by the terminal device are decoded.

2. The second method: a terminal device uses a set of PRBs to transmit different information bits.

The terminal device selects a group of PRBs in the frequency domain, that is, M=1, as shown in the second mode in FIG.

For example, if the base station sends four codewords to the terminal device, the terminal device decodes the four codewords, and sends a decoding result of the four codewords to the base station through a group of PRBs. The terminal device can then use the set of PRBs to transmit decoding results for the first codeword, the second codeword, the third codeword, and the fourth codeword or other uplink control information.

In the embodiment of the present invention, the terminal device transmits the same information bit on the PRB in each group of the M group PRBs, and before the reference signal is transmitted on the PRB in each group of the M group PRBs, the terminal device first The information bits are divided into at least two pieces of sub-information, and the terminal device spreads at least two pieces of sub-information by using at least two first spreading sequences, wherein one of the first spreading sequences is used for spreading a sub-information, and the terminal device The reference signal is spread by the second spreading sequence. After that, the terminal device transmits the spread at least two sub-informations on each PRB included in a group of PRBs in the M group of PRBs, and transmits the spread spectrum on each PRB included in a group of PRBs in the M group of PRBs. Reference signal. The first spreading sequence used by all the PRBs included in the M group PRB is the same, or the first spreading sequence used by all the PRBs included in the M group PRB is different, or the first of all the PRBs included in the M group PRB is used. Some of the first spreading sequences are the same in the spreading sequence. The second spreading sequence used by all PRBs included in the M group PRB is the same, or the second spreading sequence used by all PRBs included in the M group PRB is different, or the second spreading frequency used by all PRBs included in the M group PRB Some of the second spreading sequences are identical in the sequence. The first spreading sequence is the same, and the phase of the first spreading sequence is the same. Correspondingly, the first spreading sequence is different, which means that the phase of the first spreading sequence is different. The second spreading sequence is the same, which means that the phases of the second spreading sequence are the same. Correspondingly, the second spreading sequence is different, which means that the phases of the second spreading sequence are different.

For example, the terminal device uses the first spreading sequence 1 to spread the decoding result of the first codeword and the second codeword or other uplink control information, and then uses the first spreading sequence 2 to the third codeword. And the decoding result of the fourth codeword or other uplink control information is spread, and the first spreading sequence 1 and the first spreading sequence 2 are orthogonal. In this case, it can also be considered that the same situation is the case that one terminal device transmits a plurality of information bits through the M group PRB. That is, if the terminal device transmits a plurality of information bits through a set of PRBs, the terminal device uses multiple spreading sequences for multiple signals before transmitting the plurality of information bits. The bits are spread, wherein one information bit is spread by a spreading sequence, the plurality of spreading sequences being orthogonal to each other. Correspondingly, the terminal device can multiplex a set of PRBs to transmit a plurality of information bits, and use a plurality of orthogonal spreading sequences to spread a plurality of information bits, thereby reducing interference and ensuring quality of information transmission. Of course, in this case, the number of PRB groups actually determined by the terminal device, that is, M, may be equal to 1 or may be greater than 1. If M is greater than 1, then only one information bit may be transmitted for each group of PRBs, or multiple information bits may be multiplexed and transmitted, which is not limited in the embodiment of the present invention.

Specifically, how to transmit signals in a certain group of PRBs, as shown in FIG. 5B, is a transmission mode of sub-information a(0) and a(1) in one PRB. In FIG. 5B, the shaded squares represent subcarriers used to transmit DMRS in the frequency domain, and the remaining blank squares represent subcarriers used to transmit information bits.

In FIG. 5B, for example, for a certain terminal device, the second spreading sequence used for spreading the DMRS is [+1, +1, -1, -1] shown in FIG. 5B. The spreading sequence 1 used for spreading the sub-information a(0) pair is [+1, +1, -1, -1, +1, +1, -1, -1] shown in FIG. 5B. Then, the sub-information a(0) transmitted on the PRB is [+1*a(0), +1*a(0), -1*a(0), -1*a(0), +1. *a(0), +1*a(0), -1*a(0), -1*a(0)]. The spreading sequence 2 used for spreading the sub-information a(1) pair is [+1, -1, -1, +1, +1, -1, -1, +1] shown in FIG. 5B. Then, the sub-information a(1) transmitted on the PRB is [+1*a(1), -1*a(1), -1*a(1), +1*a(1), +1* a(1), -1*a(1), -1*a(1), +1*a(1)]. The spreading sequence 1 and the spreading sequence 2 employed by the two symbols a(0) and a(1) are mutually orthogonal. At this time, the information bits actually transmitted in this PRB are signals superimposed by the spread spectrum sequence 1 and the spread spectrum sequence 2, that is, the actually transmitted information bits are [+1*a(0), + 1*a(0),-1*a(0),-1*a(0),+1*a(0),+1*a(0),-1*a(0),-1* a(0)]+[+1*a(1),-1*a(1),-1*a(1),+1*a(1),+1*a(1),-1* a(1),-1*a(1),+1*a(1)]=[a(0)+a(1), a(0)-a(1),-a(0)-a (1), -a(0)+a(1), a(0)+a(1), a(0)-a(1), -a(0)-a(1), -a(0 ) +a(1)]. On the remaining PRBs of the group of PRBs, the same method is also used for transmission.

When receiving, each base station receives a signal transmitted on each PRB included in each group of PRBs, and multiplies a signal of a portion of the DMRS received on each PRB by a corresponding second spreading sequence to obtain channel parameters. For the signal received on each PRB in the portion of the information bit, if the terminal device is used to The two first spreading sequences are spread, and then multiplied by the corresponding first spreading sequence and then compared with the measured channel parameters to obtain a plurality of information symbols. If the terminal device performs spreading using the first spreading sequence, multiplying the first spreading sequence and comparing the measured channel parameters to obtain an information symbol. The result of each PRB on each group of PRBs is combined, and then the information bits transmitted by the terminal device are decoded.

As described above, the transmission situation of a terminal device is described. The following describes the transmission of multiple terminal devices. When multiple terminal devices transmit, different PRB groups can be selected for transmission, or in order to save resources, the same PRB group can be multiplexed for transmission. If different PRB groups are selected for transmission, the transmission mode of each terminal device is Refer to the transmission method of a terminal device as described above, and I will not repeat them. The following mainly introduces the case where multiple terminal devices multiplex the same PRB group for transmission. For details on how to select a PRB group, refer to the introduction of S21, and I will not repeat them.

In the embodiment of the present invention, if another terminal device multiplexes the M group of PRB transmission information bits and/or reference signals selected by the terminal device, the first spreading sequence used by the terminal device and other terminal devices treat the other The information bits transmitted by the terminal device are spread orthogonally using the spreading sequences used by the terminal device, and the second spreading sequence used by the terminal device and the other terminal devices use the reference signals transmitted by the other terminal devices for spreading. The spreading sequences are orthogonal to each other.

Take the same PRB group as the example of the two terminal devices, which are the terminal device 1 and the terminal device 2. Referring to FIG. 6, a schematic diagram of multiplexing a PRB for the terminal device 1 and the terminal device 2 is shown. In FIG. 6, the shaded squares represent subcarriers used to transmit DMRS in the frequency domain, and the remaining blank squares represent subcarriers used to transmit information bits. For the terminal device 1, the second spreading sequence used for spreading the DMRS is [+1, +1, -1, -1] shown in FIG. The information bit transmitted by the terminal device 1 on the PRB is a(0), and the first spreading sequence used by the terminal device 1 to spread a(0) is [+1, +1, - shown in FIG. 1,-1, +1, +1, -1, -1], then a(0) transmitted on the PRB is [+1*a(0), +1*a(0), -1* a(0), -1*a(0), +1*a(0), +1*a(0), -1*a(0), -1*a(0)]. For the terminal device 2, the second spreading sequence used for spreading the DMRS is [+1, -1, +1, -1] shown in FIG. 6, and the information bits transmitted by the terminal device 2 on the PRB are b(0), the spreading sequence used by the terminal device 2 for spreading the b(0) is [+1, -1, +1, -1, +1, -1, +1 shown in FIG. -1], the b(0) transmitted on the PRB is [+1*b(0), -1*b(0), +1*b(0), -1*b(0), + 1*b(0), -1*b(0), +1*b(0), -1*b(0)]. Wherein the terminal device 1 makes The second spreading sequence used and the second spreading sequence used by the terminal device 2 are orthogonal to each other, for example [+1, +1, -1, -1] and [+1, -1, +1, -1] The result of multiplying the alignment is 0. And the first spreading sequence used by the terminal device 1 and the first spreading sequence used by the terminal device 2 are orthogonal to each other, for example [+1, +1, -1, -1, +1, +1, -1, - 1] and [+1,-1,+1,-1,+1,-1,+1,-1] multiply the result by 0.

That is, multiple terminal devices can multiplex the same PRB group. As long as different spreading sequences are used, interference can be reduced, information transmission quality can be ensured, transmission resources are saved, and utilization of transmission resources is improved.

When receiving, each base station receives a signal transmitted on each group of PRBs, and multiplies the signal of the part of the DMRS received on each PRB by a corresponding second spreading sequence to obtain channel parameters, as shown in FIG. The second spreading sequence corresponding to the terminal device 1 is [+1, +1, -1, -1], or the second spreading sequence corresponding to the terminal device 1 is [+1, -1, +1, - 1]. The signal of the signal received on each PRB is multiplied by a plurality of first spreading sequences and then compared with the measured channel parameters to obtain an information symbol, that is, taking FIG. 6 as an example, the terminal device 1 corresponds to The first spreading sequence is [+1, +1, -1, -1, +1, +1, -1, -1], and the first spreading sequence corresponding to the terminal device 2 is [+1, -1 , +1, -1, +1, -1, +1, -1], combining the results of each PRB on each set of PRBs, and then decoding a(0) and b(0).

The embodiment shown in Figure 2 is more suitable for the case of transmitting a small number of information bits, i.e. the terminal device has to transmit less information bits. The following describes the situation in which the terminal device needs to transmit more information bits.

In the embodiment of the present invention, the DMRS transmitted in the PRB may be reduced, that is, the partial subcarrier originally used for transmitting the DMRS is changed to be used for transmitting information bits. Introduced below.

As shown in Figures 7A-7C, the placement of the DMRS in a single PRB is provided. 7A-7C respectively show the positions of the subcarriers in which the DMRS and the information bits are located in one PRB, wherein the shaded squares indicate the subcarriers in which the DMRSs are located, and the blank squares indicate the subcarriers in which the information bits are located. The subcarriers in the PRB are numbered from low frequency to high frequency or from high frequency to low frequency. In FIGS. 7A-7C, the numbers from high frequency to low frequency are taken as an example, that is, numbers 1 to 12. In FIG. 7A, the subcarriers occupied by the DMRS are numbered 2, 5, 8, and 11, and information bits are transmitted on the remaining subcarriers. In FIG. 7B, the subcarriers occupied by the DMRS are numbered 4 and 9, and information bits are transmitted on the remaining subcarriers. In Figure 7C, the DMRS The carrier number is 3, 10, and information bits are transmitted on the remaining subcarriers. In FIG. 7A, in order to maximize the effectiveness of the channel measurement, a subcarrier in which an information bit is located is placed next to each DMRS, so that the channel measurement works well. In FIG. 7B and FIG. 7C, in order to reduce the number of subcarriers occupied by the DMRS, only two subcarriers are used for transmitting the DMRS. To maximize the effect of the DMRS, the subcarriers in which the two DMRSs are located are separated by four or 6 subcarriers.

As shown in FIGS. 8A-8E, the placement positions of the DMRSs in a plurality of consecutive PRBs are provided. 8A-8E respectively show subcarrier positions where DMRS and information bits are located in consecutive PRBs, where the hatched squares indicate the subcarriers in which the DMRSs are located, and the blank squares indicate the subcarriers in which the information bits are located. The subcarriers in the PRB are numbered from low frequency to high frequency or from high frequency to low frequency. In FIGS. 8A-8E, the numbers from high frequency to low frequency are taken as an example, that is, numbers 1 to 24. In FIG. 8A, the subcarriers occupied by the DMRS are numbered 2, 5, 8, 11, 14, 17, 20, and 23, and information bits are transmitted on the remaining subcarriers. In FIG. 8B, the subcarriers occupied by the DMRS are numbered 3, 7, 11, 15, 19, and 23, and information bits are transmitted on the remaining subcarriers. In FIG. 8C, the subcarriers occupied by the DMRS are numbered 2, 6, 10, 15, 19, and 23, and information bits are transmitted on the remaining subcarriers. In FIG. 8D, the subcarriers occupied by the DMRS are numbered 3, 9, 15, 21, and information bits are transmitted on the remaining subcarriers. In FIG. 8E, the subcarriers occupied by the DMRS are numbered 3, 9, 16, 22, and information bits are transmitted on the remaining subcarriers.

When designing the location of the DMRS, that is, when designing the subcarriers occupied by the DMRS in the PRB, in order to maximize the effectiveness of the channel measurement, one DMRS subcarrier, that is, a subcarrier carrying the DMRS, is placed every N subcarriers, such that Two adjacent DMRS subcarriers can be used to measure the channel of the subcarrier between them. Since the subcarriers on both sides are located at the boundary, if the subcarriers of the boundary are subcarriers for transmitting information bits, only the nearest DMRS subcarriers can be referred to. Therefore, DMRS subcarriers should be placed in the vicinity as much as possible. For example, when F consecutive PRBs are used (F can take a positive integer), one DMRS is placed every x subcarriers, and the DMRS placement method includes but is not limited to the following three types:

1) The location of the first DMRS subcarrier is located

Then, one DMRS subcarrier is placed every x subcarriers, as shown in FIG. 8A. It should be noted that if the subcarrier number starts from 0 to 12F-1, the location corresponding to the first DMRS subcarrier is located.

Then placing one DMRS subcarrier with x subcarriers;

2) If

Not an integer, the location of the first DMRS subcarrier is located

or

Then, one DMRS subcarrier is placed every x subcarriers, and reference may be made to FIG. 8B or FIG. 8D. It should be noted that if the subcarrier number starts from 0 to 12F-1, the location corresponding to the first DMRS subcarrier is located.

or

Then placing one DMRS subcarrier per x subcarriers;

3) If

Not an integer, the location of the first DMRS subcarrier is located

Then place one DMRS subcarrier every x subcarriers until

The next DMRS is numbered

Then, one DMRS subcarrier is placed at intervals of x subcarriers until the last DMRS subcarrier number is

Reference may be made to Figure 8C or Figure 8E. It should be noted that if the subcarrier number starts from 0 to 12F-1, the location corresponding to the first DMRS subcarrier is located.

Then place one DMRS subcarrier every x subcarriers until

The next DMRS is numbered

Then, one DMRS subcarrier is placed every x subcarriers until the last DMRS subcarrier number is

The above three methods can be used not only to determine the placement mode of the DMRS when using F consecutive PRB transmissions, but also to determine how the DMRS is placed in a single PRB when using a single PRB transmission.

The above describes the DMRS placement mode when the terminal device needs to transmit more information bits. Referring to FIG. 9, an embodiment of the present invention provides an uplink information transmission method, which is mainly used to introduce how the terminal device transmits more. Information bits. The flow of the method is described below.

S91. The terminal device determines P physical resource blocks. P is a positive integer.

The terminal device may determine P PRBs in all available PRBs included in the uplink bandwidth allocated to the terminal device, that is, allocate P PRBs to the terminal device in the frequency domain.

S92. The terminal device transmits information bits on the P physical resource blocks, and the base station receives the information bits transmitted by the terminal device by using the P physical resource blocks. The information bits on each of the PRBs are not continuous.

In these P PRBs, the positions of the respective PRBs are discrete. To achieve information bit discontinuity on each PRB, the mapping of the terminal device is described below.

For example, the information bits to be transmitted by the terminal device include the symbols s0 to s15, and the PRBs allocated to the terminal devices include PRB1 and PRB2, that is, N=2, as shown in FIG. 10A, the terminal device sets the first symbol, that is, the symbol s0. Mapping to PRB 1, mapping the second symbol, symbol s1, to PRB 2, mapping the third symbol, symbol s2, to PRB 1, and so on, using this cross-mapping approach The information bits on PRB1 and the information bits on PRB2 are not continuous to improve the diversity gain. In FIG. 10A, the shaded squares indicate the subcarriers in which the DMRS is located, and the blank squares indicate the subcarriers in which the information bits are located.

Or for example, the information bits to be transmitted by the terminal device include the symbols s0 to s31, and the PRBs allocated to the terminal devices include PRB1, PRB2, PRB3, and PRB4, that is, N=4, as shown in FIG. 10B. In FIG. 10B, the shaded squares indicate the subcarriers in which the DMRS is located, and the blank squares indicate the subcarriers in which the information bits are located. The terminal device maps the first symbol, symbol s0, to PRB 1, maps the second symbol, symbol s1, to PRB 3, and maps the third symbol, symbol s2, to PRB 2, and the fourth symbol. The symbols, that is, the symbol s3 is mapped to the PRB 4, and so on. In this way, the information bits on PRB1 and the information bits on PRB2 are not consecutive, and the interval between adjacent two symbols included in the information bits is made farther, so that the diversity gain is better.

Although the mapping mode provided by the embodiment of the present invention is more suitable for the case where the terminal device transmits more information bits, the mapping mode provided by the embodiment of the present invention may also be adopted by the terminal device when transmitting less information bits.

In addition, FIG. 10A and FIG. 10B provided by the embodiments of the present invention are only examples, and a single PRB or a plurality of consecutive PRBs as described in the embodiments shown in FIG. 7A to FIG. 7C or FIG. 8A to FIG. 8E may be used. A PRB is replaced in the embodiment of the present invention, and the method mapping provided by the embodiment of the present invention is referenced. For example, the PRB 1 in FIG. 10A can be replaced with a frequency band composed of any of a plurality of consecutive PRBs in the embodiment shown in FIG. 8A to FIG. 8E, and still mapped by referring to the method provided by the embodiment of the present invention.

Specifically, the source of the symbol s0, the symbol s1, and the like included in the information bit may refer to the prior art, and details are not described herein.

As described above, a scheme of allocating a plurality of PRBs to the same terminal device in the frequency domain to transmit a large number of information bits is described. In the embodiment of the present invention, even if the terminal device needs to transmit more information bits, it can perform repeated transmission in the frequency domain to improve the transmission success rate. That is, P PRBs are allocated to a terminal device in the frequency domain to transmit information bits. In the P PRBs, the terminal device maps information bits to consecutive PRBs, and performs information on the remaining PRBs in the frequency domain. The copy transmission of bits, that is, repeated transmission.

For example, the information bits to be transmitted by the terminal device include the symbols s0 to s15, and the PRBs allocated to the terminal devices include PRB1, PRB2, PRB3, and PRB4, that is, N=4, as shown in FIG. In Fig. 11, the hatched squares indicate the subcarriers in which the DMRS is located, and the blank squares indicate the subcarriers in which the information bits are located. The terminal device maps the first symbol, symbol s0, to PRB 1, maps the second symbol, symbol s1, to PRB 2, and maps the third symbol, symbol s2, to PRB 1. By analogy, this way of cross-mapping is used. After the mapping on the two PRBs is completed, the replication transmission is performed on the other two PRBs, that is, PRB3 and PRB4, and the mapping manner on PRB3 and PRB4 can refer to the cross-mapping manner on PRB1 and PRB2. Alternatively, the signals transmitted on PRB 3 and PRB4 can be obtained by rotating the signals transmitted on PRB1 and PRB 2, that is, multiplied by the signals transmitted on PRB 1 and PRB 2

or

Obtain, in order to randomize the transmitted signal and reduce the PAPR.

In addition, the terminal device transmits the reference signal in addition to the P bits, and the reference signal transmitted by the terminal device in the embodiment of the present invention includes the DMRS.

Then, the terminal device may first spread the DMRS through the second spreading sequence, and then transmit the spread DMRS on the P PRBs.

If the terminal device transmits in a manner similar to FIG. 10A or FIG. 10B, the base station is receiving The signals transmitted on each group of PRBs are respectively received, and the signals of the signals received on each PRB of each group of PRBs in the DMRS are respectively multiplied by corresponding second spreading sequences to obtain channel parameters, each group of PRBs. The signal of the signal received on each PRB in the part of the information bit is compared with the measured channel parameter to obtain an information symbol. Optionally, further process such as channel coding and decoding may be performed, and the specific process may refer to the prior art.

If the terminal device performs the copy transmission in a manner similar to that of FIG. 11, the base station receives the signal transmitted on each group of PRBs when receiving, and the signal of the signal received on each PRB of each group of PRBs in the DMRS, Multiplying the corresponding second spreading sequence respectively to obtain channel parameters, comparing the signals of the signals received in each of the PRBs in each of the PRBs with the measured channel parameters, and combining the plurality of sets of PRBs Or the result of multiple PRBs, get the information symbol. Optionally, further process such as channel coding and decoding may be performed, and the specific process may refer to the prior art.

In a possible implementation, the subcarriers used to carry the DMRS in the P PRBs may also be multiplexed by other terminal devices, and the other terminal devices may transmit the reference signals through the subcarriers. The reference signals transmitted by the other terminal devices to multiplex the subcarriers may include reference signals for performing channel measurement, such as DMRS, or a Sounding Reference Signal (SRS).

That is to say, after P PRBs in the frequency domain are allocated to a certain terminal device, the DMRS signal of the terminal device is transmitted on the subcarrier for placing the DMRS. At this time, the other terminal devices may multiplex the DMRS subcarriers to transmit the reference signal, and the embodiment of the present invention does not limit the number of the multiplexed terminal devices. The terminal device uses the second spreading sequence to spread the frequency of the DMRS, and the other terminal devices may separately spread the transmitted reference signal by using a spreading sequence, wherein the second spreading sequence used by the terminal device and other The spreading sequences used by the terminal devices are orthogonal to each other, thereby reducing interference, so that the reference signals transmitted by other terminal devices do not affect the reception of the DMRS signals transmitted by the terminal devices.

See, for example, Figures 12A and 12B. In FIGS. 12A-12B, the shaded squares indicate the subcarriers in which the DMRS is located, and the blank squares indicate the subcarriers in which the information bits are located. In FIG. 12A, the DMRS of the terminal device 1 is transmitted on the subcarrier position for carrying the DMRS, and the terminal device 2, the terminal device 3, These subcarriers are multiplexed with the terminal device 4. The second spreading sequence used by the terminal device 1 for spreading the DMRS signal is [+1, +1, -1, -1], and the terminal device 2 performs spreading on the reference signal transmitted by the terminal device 2 for spreading. The frequency sequence is [+1, -1, -1, +1], and the spreading sequence used by the terminal device 3 for spreading the reference signal transmitted by the terminal device 3 is [+1, +1, +1, +1] The spreading sequence used by the terminal device 4 for spreading the reference signal transmitted by the terminal device 4 is [+1, -1, +1, -1]. These four spreading sequences are orthogonal to each other to avoid mutual interference. In FIG. 12B, the DMRS of the terminal device 1 is transmitted at the subcarrier position for carrying the DMRS, and the terminal device 2 multiplexes these subcarriers. The second spreading sequence used by the terminal device 1 for spreading the DMRS signal is [+1, -1], and the spreading sequence used by the terminal device 2 for spreading the reference signal transmitted by the terminal device 2 is [+1]. , +1], the two are orthogonal to each other to avoid interference.

If the other terminal equipment multiplexes the subcarriers for carrying the DMRS in the P PRBs, the base station receives the signals transmitted on each group of PRBs when receiving, and the signals received on each PRB in each group of PRBs are referred to. The signal of the part of the signal is multiplied by the corresponding second spreading sequence to obtain channel parameters, wherein some of the channel parameters correspond to a certain terminal device, such as the terminal device 1 in FIG. 12A or FIG. 12B, the terminal device is in addition to being Information bits are transmitted on other subcarriers than the multiplexed subcarriers, and the remaining channel parameters correspond to other terminal devices, such as terminal device 2, terminal device 3 or terminal device 4 in FIG. 12A, or for example, in FIG. 12B The terminal device 2, which does not transmit information bits on other subcarriers than the multiplexed subcarriers. That is, other terminal devices simply multiplex the subcarriers for carrying the DMRS to transmit the reference signals, and do not reuse other subcarrier transmission information bits. The signals of the signals received on each of the PRBs in each of the PRBs are compared with the measured channel parameters to obtain information symbols. Optionally, a further channel coding and decoding process may also be performed, and the specific process may refer to the prior art.

Channel information can be obtained by multiplexing other DMRS subcarriers on other terminal devices, and no other terminal equipment needs to use a dedicated transmission resource to transmit reference signals, thereby saving transmission resources. Moreover, other terminal devices can assist subsequent transmissions according to the obtained channel information, such as a pre-coding matrix of a multi-antenna transmission, to help improve processing efficiency.

In the previous embodiment, the transmission is performed using normal symbols in the time domain. Then, a symbol can only transmit one type of information, for example, one symbol for transmitting information bits, or one symbol for transmitting reference signals, which is not flexible enough in terms of symbol utilization. In view of this, the embodiment of the present invention proposes that the length of one symbol transmitted under the existing subcarrier spacing can be extended by the subcarrier spacing to G times, and the G short symbols are transmitted together, that is, one symbol is divided into G symbols. Short symbols, or G sub-symbols. Where G can take 2 ⁿ , n is an integer greater than 1, for example, G can take 4, or 8 or the like. In particular, when the existing subcarrier spacing is 15 kHz, subcarriers with a subcarrier spacing of 60 kHz may be used for transmission. The following describes how to transfer by G sub-symbols.

Referring to FIG. 13, an embodiment of the present invention provides an uplink information transmission method, and a flow of the method is described as follows.

S131. The terminal device determines a physical resource block.

The terminal device may determine the PRB in all available PRBs included in the uplink bandwidth allocated to the terminal device, that is, allocate the PRB to the terminal device in the frequency domain. The terminal device may determine that one PRB or multiple PRBs.

Among them, S131 is an optional step, and in order to distinguish from the mandatory step, the frame for indicating S131 is drawn as a broken line in FIG.

S132. The terminal device transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, and transmits the reference signal on the remaining sub-symbols included in the symbol used for transmitting the information bits. Then, the base station receives the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, and receives the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits. Wherein the symbol for transmitting information bits includes at least two sub-symbols. In the embodiment of the present invention, the reference signal transmitted by the terminal device includes a DMRS.

The symbol used for transmitting information bits is a symbol for transmitting uplink control information in a subframe, and the structure of the subframe is different, and the number of symbols included in one subframe for transmitting information bits and the location thereof It will vary, such as the self-contained sub-frame shown in Figure 1A, which includes a symbol for transmitting information bits. In the following, the PRB determined by the terminal device is an example of the self-contained subframe format shown in FIG. 1A in the time domain, and G=4 is taken as an example. The embodiment of the present invention is of course not limited thereto.

The original symbol length used to transmit information bits can be used to transmit 4 sub-symbols. Can A signal to be transmitted on each subcarrier is generated using a Zad-off Chu sequence or a special Quadrature Phase Shift Keyin (QPSK) sequence. As shown in FIG. 14, sub-symbol 1 transmits DMRS, and a signal to be transmitted on each subcarrier is generated by using a Zad-off Chu sequence or a special QPSK sequence, and sub-symbol 1 is an orthogonal frequency division complex of discrete Fourier transform spread spectrum. The multiple access (DFT-s-OFDM) symbol is used, that is, the number of remaining sub-symbols is one. Before transmitting the DMRS through the remaining sub-symbols, the terminal device may first spread the DMRS through the second spreading sequence, and then transmit the spread DMRS through the remaining sub-symbols. After that, sub-symbol 2, sub-symbol 3 and sub-symbol 4 transmit information bits, ie K=3, which can transmit the same information bits, and can also transmit different information bits, when the three sub-symbols transmit the same information bits. The coverage of the information bits can be enhanced. Before transmitting the information bits through the K sub-symbols, the terminal device may first spread the information bits through the first spreading sequence, and then transmit the spread information bits through the K sub-symbols. In Fig. 14, the hatched squares indicate the subcarriers in the subsymbols in which the DMRS is transmitted, and the horizontally drawn squares represent the subcarriers in the subsymbols in which the information bits are transmitted.

At the same time, the K sub-symbol can support multiplexing of multiple terminal devices. For example, each terminal device uses a first spreading sequence to spread the transmitted information bits, and the first spreading sequences used by different terminal devices are orthogonal to each other. Thereby achieving the purpose of multiplexing and not interfering with each other. In addition, the remaining sub-symbols may also support multiplexing of multiple terminal devices. For example, each terminal device uses a second spreading sequence to spread the transmitted reference signals, and the second spreading sequences used by different terminal devices are orthogonal to each other. In order to achieve reuse and mutual interference.

In FIG. 14, the first sub-symbol is used to transmit the DMRS. In the embodiment of the present invention, the DMRS may be transmitted by any one of the four sub-symbols, that is, the position of the sub-symbol occupied by the DMRS is not limited. Moreover, in the embodiment of the present invention, the number of sub-symbols occupied by the DMRS is not limited. FIG. 14 is an example, or two sub-symbols may be used to transmit the DMRS. In general, the number of sub-symbols transmitting the DMRS may be less than or equal to 1/2 of the number of sub-symbols included in the symbol used to transmit the information bits.

In the embodiment of the present invention, if the number of sub-symbols included in the remaining sub-symbols is an even number, the remaining sub-symbols are discretely distributed on the sub-carriers included in the PRB, and the sub-symbols included on each of the occupied sub-carriers The number is even. As shown in FIG. 15, the number of remaining sub-symbols is 2, that is, the DMRS is transmitted through two sub-symbols. In Fig. 15, the hatched squares indicate the subcarriers in the subsymbols in which the DMRS is transmitted, and the horizontally drawn squares represent the subcarriers in the subsymbols in which the information bits are transmitted. The sub-symbol 1 transmits the DMRS on the subcarrier of the high frequency side of the PRB, and the sub-symbol 2 also transmits the information bit on the sub-carrier of the high-frequency side of the PRB, where the DMRS and the sub-symbol 2 are transmitted on the sub-symbol 1 The transmitted information bits occupy the same subcarrier. Subsymbol 3 transmits DMRS on subcarriers on the low frequency side of the PRB, and subsymbol 4 also transmits information bits on subcarriers on the low frequency side of the PRB, where the information bits transmitted on the DMRS and subsymbol 4 transmitted on subsymbol 3 Occupy the same subcarrier. If the PRB numbers occupied by sub-symbol 1 are i, i+1, i+2, and i+3, there are X PRBs available in the uplink bandwidth allocated for the terminal device, and the PRB number occupied by the third sub-symbol 3 at this time. They are Xi, Xi-1, Xi-2 and Xi-3. The transmission of information bits obtains a diversity gain by transmitting on both sides of the frequency band. Specifically for the transmission of each sub-symbol, a signal to be transmitted on each sub-carrier may be generated by using a Zad-off Chu or a special QPSK sequence, such that the sub-symbol 4 is a DFT-s-OFDM symbol.

FIG. 15 shows that subcarriers occupied by subsymbol 1 and subsymbol 2 and subcarriers occupied by subsymbol 3 and subsymbol 4 are distributed on both sides of the frequency band. In practical applications, as long as the two subcarriers are discretely distributed, Must be distributed on both sides of the band. Of course, better diversity gain can be obtained by distributing on both sides of the band.

In the embodiment of the present invention, the remaining sub-symbols can occupy arbitrary positions on the symbols used for transmitting the uplink control signals. 14 has shown the case where the number of remaining sub-symbols is 1, and the following describes the case where the remaining sub-symbols include a plurality. Referring to FIG. 16, in FIG. 16, the number of remaining sub-symbols is 2, that is, there are two sub- The symbols are used to transmit DMRS, and the other two sub-symbols are used to transmit information bits, ie K=2. For example, sub-symbol 1 and sub-symbol 3 transmit DMRS, and sub-symbol 2 and sub-symbol 4 transmit information bits. In Fig. 16, the hatched squares indicate the subcarriers in the subsymbols that transmit the DMRS, and the dashed squares represent the subcarriers in the subsymbols that transmit the information bits. For example, FIG. 16 is only an example. In practical applications, the sub-symbol occupied by the DMRS may be any two of the four sub-symbols, which is not limited in the embodiment of the present invention.

At the same time, the four sub-symbols can also support multiplexing of multiple terminal devices, and multiple terminal devices can use different spreading sequences to spread the transmitted signals, and the spreading sequences of different terminal devices are used. It can be orthogonal to each other. For example, the four sub-symbols are multiplexed by two terminal devices, and continue to use FIG. 16 as an example to treat the information bits transmitted on the DMRS and sub-symbol 2 transmitted on the sub-symbol 1 as the first whole, and transmit the sub-symbol 3 The information bits transmitted on the DMRS and the sub-symbol 4 are regarded as the second whole, and the first terminal device spreads the first whole and the second whole by using the spreading sequence of [+1, +1], and second. The terminal equipment spreads the first whole and the second whole by using a spreading sequence of [+1, -1]. After receiving by the base station, the signals of the two terminal devices are distinguished by the orthogonality of [+1, +1] and [+1, -1]. Specifically for the transmission of each sub-symbol, a signal to be transmitted on each sub-carrier may be generated by using a Zad-off Chu or a special QPSK sequence, such that the sub-symbol 4 is a DFT-s-OFDM symbol.

The embodiment of the invention provides a method for transmitting a plurality of information bits in a single symbol duration, and the effect of diversity gain can be achieved. In addition, the embodiment of the present invention provides a manner of transmitting a large number of information bits in a single symbol duration, and provides multiple DMRS allocation modes for the PRB to maximize diversity gain. In addition, the embodiment of the present invention further provides a transmission mode of multiple sub-symbols in a single symbol duration, and uses a single carrier symbol for transmission, and the diversity gain can be achieved when the PAPR is reduced.

The device provided by the embodiment of the present invention is described below with reference to the accompanying drawings.

FIG. 17 is a schematic diagram of a computer device 1700 according to an embodiment of the present invention. Computer device 1700 includes at least one processor 1701, a communication bus 1702, a memory 1703, and at least one communication interface 1704. In the embodiment of the present invention, the computer device 1700 shown in FIG. 17 can be used to implement the terminal device as described in the embodiment shown in FIG. 2, the embodiment shown in FIG. 9, or the embodiment shown in FIG. It can be used to implement the base station as described in the embodiment shown in FIG. 2, the embodiment shown in FIG. 9, or the embodiment shown in FIG.

The processor 1701 may be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling program execution of an embodiment of the present invention. .

Communication bus 1702 can include a path for communicating information between the components described above. Communication interface 1704, using any type of transceiver, for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.

The memory 1703 can be a read-only memory (ROM) or can be stored statically. Other types of static storage devices of state information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read only memory (Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.) A disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto. The memory 1703 may be independently present and connected to the processor 1701 via a bus. The memory 1703 can also be integrated with the processor 1701.

The memory 1703 is used to store application code for executing the solution of the present invention, and is controlled by the processor 1701 for execution. The processor 1701 is configured to execute application code stored in the memory 1703. If the terminal device is implemented by the computer device 1700, one or more software modules may be stored in the memory 1703 of the terminal device, and the terminal device may implement the stored software module by using the program code in the processor 1701 and the memory 1703 to implement the information. Transmission of bits and/or reference signals.

In a specific implementation, as an embodiment, the processor 1701 may include one or more CPUs, such as CPU0 and CPU1 in FIG.

In a specific implementation, as an embodiment, the computer device 1700 may include a plurality of processors 1701, such as the first processor 17011 and the second processor 17012 in FIG. 17, wherein the first processor 17011 and the second process The names of the switches 17012 are different and the reference numerals are different, just to distinguish the plurality of processors 1701. Each of these processors 1701 may be a single-CPU processor 1701 or a multi-CPU processor 1701. Processor 1701 herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.

The computer device 1700 described above can be a general purpose computer device or a special purpose computer device. Embodiments of the invention do not limit the type of computer device 1700.

Referring to FIG. 18, an embodiment of the present invention provides a terminal device, where the terminal device includes a processing list. Element 1801 and transmitting unit 1802.

The processing unit 1801 is configured to determine M groups of physical resource blocks, where M is a positive integer. The transmitting unit 1802 is configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, and transmit the reference signal on the physical resource block in each of the M groups of physical resource blocks.

In a possible implementation, the processing unit 1801 is further configured to: transmit, by the sending unit 1802, the same information bit on the physical resource block in each of the M groups of physical resource blocks, and in the M group of physical resource blocks. Before transmitting the reference signal on the physical resource block in each group, the information bits are spread by the first spreading sequence, and the reference signal is spread by the second spreading sequence. The first spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the first spreading sequence used by all the physical resource blocks included in the M physical resource block is different, or the M group physical The first spreading sequence used by all the physical resource blocks included in the resource block is the same as the first spreading sequence; the second spreading sequence used by all the physical resource blocks included in the M physical resource block is the same, or the M group physics The second spreading sequence used by all the physical resource blocks included in the resource block is different, or a part of the second spreading sequence used in all the physical resource blocks included in the M physical resource block is the same.

In a possible implementation, the same first spreading sequence means that the phases of the first spreading sequence are the same, and the difference of the first spreading sequence means that the phases of the first spreading sequence are different.

In a possible implementation, the second spreading sequence is the same as the second spreading sequence, and the second spreading sequence is different. The second spreading sequence is different in phase.

In a possible implementation, the sending unit 1802 is further configured to: transmit another plurality of information bits by using the M group of physical resource blocks. When the transmitting unit 1802 transmits the plurality of information bits, the processing unit 1801 spreads a plurality of information bits by using a plurality of spreading sequences, and the plurality of spreading sequences and the first spreading sequence are orthogonal to each other. That is, the processing unit 1801 first spreads a plurality of information bits by using a plurality of spreading sequences, and then the transmitting unit 1802 transmits the spread of the plurality of information bits through the M sets of physical resource blocks.

In a possible implementation, if another terminal device multiplexes M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence is transmitted to another terminal device by another terminal device. The spreading sequences used for spreading the information bits are orthogonal to each other, and the spreading sequences used by the second spreading sequence and the reference signal transmitted by the other terminal device to the other terminal device are orthogonal to each other.

In a possible implementation, the sending unit 1802 is configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, and the physical resources in each group in the M group of physical resource blocks. Transmitting the reference signal on the block includes: transmitting the spread information bits on the physical resource blocks in each of the M groups of physical resource blocks, and on the physical resource blocks in each of the M groups of physical resource blocks The spread reference signal is transmitted.

In a possible implementation, the processing unit 1801 is configured to: spread the information bits by using the first spreading sequence, including: dividing the information bits into at least two sub-informations, and pairing at least two sub-sequences by at least two first spreading sequences Information is spread. Wherein at least two first spreading sequences are orthogonal to each other.

In a possible implementation, the sending unit 1802 is configured to transmit the spread information bits on the physical resource blocks in each of the M groups of physical resource blocks, including: in each of the M groups of physical resource blocks. The spread resource has at least two sub-informations transmitted on the physical resource block.

In a possible implementation,

The processing unit 1801 is further configured to: before the transmitting unit 1802 transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, divide the information bits into M sub-informations;

The sending unit 1802 is configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, including: each physical resource block included in a group of physical resource blocks in the M group of physical resource blocks Transmit one of the M sub-information. The M group physical resource block transmits M sub-information.

In a possible implementation,

The processing unit 1801 is further configured to: before the transmitting unit 1802 transmits one of the M pieces of information on each physical resource block included in the group of physical resource blocks in the M group of physical resource blocks, by using the first spreading sequence pair a sub-information for spreading;

The sending unit 1802 is configured to transmit one of the M pieces of sub-information on each physical resource block included in the group of physical resource blocks in the M group of physical resource blocks, including: a group of physical resources in the M group of physical resource blocks A spread sub-information is transmitted on each physical resource block included in the block.

In a possible implementation,

The processing unit 1801 is further configured to: after the transmitting unit 1802 transmits the reference signal on the physical resource block in each of the M groups of physical resource blocks, spread the reference signal by using the second spreading sequence;

The transmitting unit 1802 is configured to transmit the reference signal on the physical resource block in each of the M groups of physical resource blocks, including: transmitting the spread reference signal on the physical resource block in each of the M groups of physical resource blocks. .

In a possible implementation, the sending unit 1802 is further configured to: transmit another plurality of information bits by using the M group of physical resource blocks. The terminal device spreads a plurality of information bits by using a plurality of spreading sequences when transmitting a plurality of information bits, and the plurality of spreading sequences are orthogonal to the first spreading sequence. That is, the processing unit 1801 spreads a plurality of information bits by using a plurality of spreading sequences, and the transmitting unit 1802 transmits the spread of the plurality of information bits through the M sets of physical resource blocks.

In a possible implementation, if another terminal device multiplexes M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence is performed with another terminal device to transmit information bits of another terminal device. The spread spectrum spreading sequences are orthogonal to each other, and the spreading sequences of the second spreading sequence and the reference signal transmitted by the other terminal device to the other terminal device are orthogonal to each other.

In a possible implementation, the processing unit 1801 is configured to determine the M sets of physical resource blocks, including: determining the M sets of physical resource blocks according to the total number of physical resource blocks and the number of times the information bits need to be repeatedly transmitted.

In a practical application, the physical device corresponding to the sending unit 1802 may be the communication interface 1704 in FIG. 17, and the physical device corresponding to the processing unit 1801 may be the processor 1701 in FIG. It can be considered that when the terminal device is implemented by the computer device 1700 shown in FIG. 17, in the communication interface 1704 in FIG. 17, some communication interfaces 1704 implement the function of receiving signals, and some communication interfaces 1704 can implement signal transmission. The function, that is, the function of the transmitting unit 1802 is implemented. Alternatively, it can be considered that in the communication interface 1704 in FIG. 17, it is possible that each communication interface 1704 can implement both the function of receiving a signal and the function of the transmitting unit 1802.

The terminal device may be used to perform the method provided by the embodiment shown in FIG. 2 above, and may be, for example, a terminal device as described above. Therefore, for the functions implemented by the units in the terminal device, Please refer to the description of the previous method section for details.

Referring to FIG. 19, an embodiment of the present invention provides a terminal device, where the terminal device includes a processing unit 1901 and a sending unit 1902.

The processing unit 1901 is configured to determine P physical resource blocks, and P is a positive integer. The sending unit 1902 is configured to transmit information bits on the P physical resource blocks. The information bits on each of the physical resource blocks are not continuous.

In a possible implementation,

The processing unit 1901 is further configured to: spread the reference signal by using the second spreading sequence;

The sending unit 1902 is further configured to: transmit the spread reference signal on the P physical resource blocks.

In a possible implementation, if another terminal device multiplexes P physical resource block transmission reference signals, the second spreading sequence spreads with the reference signal transmitted by another terminal device to another terminal device. The sequences are orthogonal to each other.

In a practical application, the physical device corresponding to the sending unit 1902 may be the communication interface 1704 in FIG. 17, and the physical device corresponding to the processing unit 1901 may be the processor 1701 in FIG. It can be considered that when the terminal device is implemented by the computer device 1700 shown in FIG. 17, in the communication interface 1704 in FIG. 17, some communication interfaces 1704 implement the function of receiving signals, and some communication interfaces 1704 can implement signal transmission. The function, that is, the function of the transmitting unit 1902 is implemented. Alternatively, it can be considered that in the communication interface 1704 in FIG. 17, it is possible that each communication interface 1704 can implement both the function of receiving a signal and the function of the transmitting unit 1902.

The terminal device may be used to perform the method provided by the embodiment shown in FIG. 9 above, and may be, for example, a terminal device as described above. Therefore, for the functions and the like implemented by the units in the terminal device, reference may be made to the description of the previous method portion, and details are not described herein.

Referring to FIG. 20, an embodiment of the present invention provides a terminal device, where the terminal device includes a sending unit 2001.

The sending unit 2001 is configured to transmit information bits on the K sub-symbols included in the symbol for transmitting information bits in the physical resource block, and transmit the reference signal on the remaining sub-symbols included in the symbol used for transmitting the information bits. . Wherein the symbol for transmitting information bits includes at least two sub-symbols number.

In a possible implementation, each of the K sub-symbols carries the same information bit, or each of the K sub-symbols carries a different information bit.

In a possible embodiment, the terminal device further comprises a processing unit 2002, which is shown together in FIG. The processing unit 2002 is an optional functional module, which is drawn as a broken line in FIG. 20 in order to distinguish it from the necessary functional modules.

The processing unit 2002 is configured to: after the transmitting unit 2001 transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, spread the information bits by using the first spreading sequence;

The transmitting unit 2001 is configured to transmit information bits on the K sub-symbols included in the symbols for transmitting information bits in the physical resource block, including: transmitting the spread information bits on the K sub-symbols.

In a possible implementation, if another terminal device multiplexes K sub-symbol transmission information bits, the spreading sequence of the first spreading sequence and the information bits transmitted by another terminal device to another terminal device are mutually mutually spread. Orthogonal.

In a possible implementation, the terminal device further includes a processing unit 2002, please continue to refer to FIG.

The processing unit 2002 is configured to: after the transmitting unit 2001 transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits, spread the reference signal by using the second spreading sequence;

The transmitting unit 2001 is configured to transmit the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits, including: transmitting the spread reference signal on the remaining sub-symbols.

In a possible implementation, if another terminal device multiplexes the remaining sub-symbol transmission reference signal, the second spreading sequence is spread spectrum sequence with another terminal device to spread the reference signal signal transmitted by the other terminal device. Orthogonal to each other.

In a possible implementation manner, if the number of sub-symbols included in the remaining sub-symbols is an even number, the remaining sub-symbols are discretely distributed on the sub-carriers included in the physical resource block, and the number of sub-symbols included on each occupied sub-carrier is occupied. It is even.

In a possible embodiment, the remaining sub-symbols occupy an arbitrary position on the symbol used to transmit the uplink control signal.

In an actual application, the physical device corresponding to the sending unit 2001 may be the communication interface 1704 in FIG. 17, and the physical device corresponding to the processing unit 2002 may be the processor 1701 in FIG. It can be considered that when the terminal device is implemented by the computer device 1700 shown in FIG. 17, in the communication interface 1704 in FIG. 17, some communication interfaces 1704 implement the function of receiving signals, and some communication interfaces 1704 can implement signal transmission. The function, that is, the function of the transmitting unit 2001 is implemented. Alternatively, it can be considered that in the communication interface 1704 in FIG. 17, it is possible that each communication interface 1704 can implement both the function of receiving a signal and the function of the transmitting unit 2001.

The terminal device may be used to perform the method provided by the embodiment shown in FIG. 13 above, and may be, for example, a terminal device as described above. Therefore, for the functions and the like implemented by the units in the terminal device, reference may be made to the description of the previous method portion, and details are not described herein.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, where the program includes some or all of the uplink information transmission methods described in the method embodiment shown in FIG. step.

In the embodiment of the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit or unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some Features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.

The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may also be an independent physical module.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solutions of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device, for example, A personal computer, server, or network device, or the like, or a processor, performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a universal serial bus flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.

The above embodiments are only used to describe the technical solutions of the embodiments of the present invention in detail, but the description of the above embodiments is only used to help understand the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. . Variations or substitutions that may be readily conceived by those skilled in the art are intended to be included within the scope of the present invention.

Claims

An uplink information transmission method, comprising:

The terminal device determines the M group physical resource block; M is a positive integer;

Transmitting, by the terminal device, the same information bits on the physical resource blocks in each of the M groups of physical resource blocks, and transmitting the reference on the physical resource blocks in each of the M groups of physical resource blocks signal.
The method of claim 1 wherein

Transmitting, by the terminal device, the same information bits on the physical resource blocks in each of the M groups of physical resource blocks, and transmitting on the physical resource blocks in each of the M groups of physical resource blocks Before the reference signal, it also includes:

The terminal device spreads the information bits by using a first spreading sequence, and spreads the reference signal by using a second spreading sequence; wherein all physical resources included in the M group of physical resource blocks are included The first spreading sequence used by the block is the same, or the first spreading sequence used by all the physical resource blocks included in the M group of physical resource blocks are different, or the M group of physical resource blocks are included. a portion of the first spreading sequence used by all physical resource blocks is the same; the second spreading sequence used by all physical resource blocks included in the M group of physical resource blocks is the same, or The second spreading sequence used by all the physical resource blocks included in the M group physical resource block is different, or the second spreading sequence used by all physical resource blocks included in the M group physical resource block Some of the second spreading sequences are the same.
The method according to claim 2, wherein the same first spreading sequence means that the phase of the first spreading sequence is the same, and the difference of the first spreading sequence refers to the first spreading. The phases of the sequences are different.
The method according to claim 2, wherein the second spreading sequence is the same, the phase of the second spreading sequence is the same, and the second spreading sequence is different, the second spreading is The phases of the sequences are different.
The method of any of claims 2-4, wherein the method further comprises:

The terminal device transmits another plurality of information bits through the M group of physical resource blocks, where the terminal device uses the plurality of spreading sequences to perform the plurality of information bits when transmitting the plurality of information bits. Spreading, the plurality of spreading sequences are orthogonal to the first spreading sequence.
The method according to any one of claims 2 to 5, wherein if the other terminal device multiplexes the M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence and And the spreading sequence used by the other terminal device to spread the information bits transmitted by the another terminal device is orthogonal to each other, the second spreading sequence and the another terminal device to the another terminal device The spread reference sequences used for spreading the transmitted reference signals are orthogonal to each other.
The method according to any one of claims 2-6, wherein the terminal device transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, and The reference signal is transmitted on the physical resource block in each group in the M group physical resource block, including:

Transmitting, by the terminal device, the spread information bits on a physical resource block in each of the M groups of physical resource blocks, and physical resources in each of the M groups of physical resource blocks The spread reference signal is transmitted on the block.
The method according to claim 7, wherein the terminal device spreads the information bits by using a first spreading sequence, including:

The terminal device divides the information bits into at least two sub-information;

The terminal device performs spreading on the at least two sub-information by using at least two first spreading sequences; wherein the at least two first spreading sequences are orthogonal to each other.
The method according to claim 8, wherein the terminal device transmits the spread information bits on a physical resource block in each of the M groups of physical resource blocks, including:

The terminal device transmits the spread at least two pieces of sub-information on a physical resource block in each of the M groups of physical resource blocks.
The method of claim 1 wherein M is greater than or equal to 2;

Before the terminal device transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, the method further includes:

The terminal device divides the information bits into M sub-informations;

Transmitting, by the terminal device, the same information bits on the physical resource blocks in each of the M groups of physical resource blocks, including:

Transmitting, by the terminal device, one of the M pieces of sub-information on each physical resource block included in a group of physical resource blocks of the M group of physical resource blocks; wherein the M group of physical resource block transmission stations M sub-information.
The method of claim 10 wherein:

Before the terminal device transmits one of the M pieces of information on each physical resource block included in a group of physical resource blocks of the M group of physical resource blocks, the method further includes:

Transmitting, by the terminal device, the one sub-information by using a first spreading sequence;

Transmitting, by the terminal device, one of the M pieces of sub-information on each physical resource block included in a group of physical resource blocks of the M group of physical resource blocks, including:

The terminal device transmits the spread sub-information on each physical resource block included in a group of physical resource blocks in the M group of physical resource blocks.
The method of claim 11 wherein:

Before the terminal device transmits the reference signal on the physical resource block in each of the M groups of physical resource blocks, the method further includes:

Transmitting, by the terminal device, the reference signal by using a second spreading sequence;

The terminal device transmits a reference signal on a physical resource block in each of the M groups of physical resource blocks, including:

The terminal device transmits the spread reference signal on a physical resource block in each of the M groups of physical resource blocks.
The method of any of claims 10-12, wherein the method further comprises:

The terminal device transmits another plurality of information bits through the M group of physical resource blocks, where the terminal device uses the plurality of spreading sequences to perform the plurality of information bits when transmitting the plurality of information bits. Spreading, the plurality of spreading sequences are orthogonal to the first spreading sequence.
The method according to any one of claims 10-12, wherein if the other terminal device multiplexes the M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence a spreading sequence that is spread by the other terminal device to the information bits transmitted by the another terminal device, the second spreading sequence and the another terminal device being opposite to the other terminal device The spread reference sequences of the transmitted reference signals for spreading are orthogonal to each other.
The method according to any one of claims 1 to 14, wherein the terminal device determines the M group of physical resource blocks, including:

The terminal device determines the M group physical resource blocks according to the total number of physical resource blocks and the number of times the information bits need to be repeatedly transmitted.
An uplink information transmission method, comprising:

The terminal device determines P physical resource blocks; P is a positive integer;

The terminal device transmits information bits on the P physical resource blocks; information bits on each of the physical resource blocks are discontinuous.
The method of claim 16 wherein the method further comprises:

Transmitting, by the terminal device, the reference signal by using a second spreading sequence;

The terminal device transmits the spread reference signal on the P physical resource blocks.
The method according to claim 17, wherein if the other terminal device multiplexes the P physical resource block transmission reference signals, the second spreading sequence and the another terminal device pair The spreading sequences of the reference signals transmitted by the other terminal device are spread orthogonal to each other.
An uplink information transmission method, comprising:

Transmitting, by the terminal device, the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, and transmitting the reference signal on the remaining sub-symbols included in the symbol for transmitting the information bits; The symbols used to transmit information bits include at least two sub-symbols.
The method of claim 19, wherein each of the K sub-symbols carries the same information bit, or each of the K sub-symbols carries a different information bit.
A method according to claim 19 or 20, wherein

Before the terminal device transmits the information bits on the K sub-symbols included in the symbol for transmitting the information bits in the physical resource block, the method further includes:

Transmitting, by the terminal device, the information bits by using a first spreading sequence;

The terminal device transmits information bits on the K sub-symbols included in the symbol for transmitting information bits in the physical resource block, including:

The terminal device transmits the spread information bits on the K sub-symbols.
The method according to claim 21, wherein if another terminal device multiplexes the K sub-symbol transmission information bits, the first spreading sequence and the another terminal device pair the another The spreading bits of the information bits transmitted by the terminal device are spread orthogonal to each other.
A method according to any of claims 19-22, wherein

Before the terminal device transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting information bits, the method further includes:

Transmitting, by the terminal device, the reference signal by using a second spreading sequence;

Transmitting, by the terminal device, the reference signal on the remaining sub-symbols included in the symbol for transmitting information bits, including:

The terminal device transmits the spread reference signal on the remaining sub-symbols.
The method according to claim 23, wherein if another terminal device multiplexes the remaining sub-symbol transmission reference signal, the second spreading sequence and the other terminal device pair the another The spread spectrum sequences for which the reference signals transmitted by the terminal device are spread are orthogonal to each other.
A method according to any of claims 19-24, wherein

If the number of sub-symbols included in the remaining sub-symbols is an even number, the remaining sub-symbols are discretely distributed on sub-carriers included in the physical resource block, and the number of sub-symbols included on each occupied sub-carrier is even.
A method according to any of claims 19-25, wherein said remaining sub-symbols occupy an arbitrary position on said symbol for transmitting an uplink control signal.
A terminal device, comprising:

a processing unit, configured to determine M groups of physical resource blocks; M is a positive integer;

a sending unit, configured to transmit the same information bit on the physical resource block in each of the M groups of physical resource blocks, and upload the physical resource block in each of the M group of physical resource blocks Input the reference signal.
The terminal device according to claim 27, wherein the processing unit is further configured to:

Transmitting, by the transmitting unit, the same information bits on physical resource blocks in each of the M groups of physical resource blocks, and transmitting on physical resource blocks in each of the M groups of physical resource blocks Before the reference signal, the information bits are spread by a first spreading sequence, and the reference signal is spread by a second spreading sequence; wherein all physical resources included in the M group of physical resource blocks are included The first spreading sequence used by the block is the same, or the first spreading sequence used by all the physical resource blocks included in the M group of physical resource blocks are different, or the M group of physical resource blocks are included. a portion of the first spreading sequence used by all physical resource blocks is the same; the second spreading sequence used by all physical resource blocks included in the M group of physical resource blocks is the same, or The second spreading sequence used by all the physical resource blocks included in the M group physical resource block is different, or the second spreading sequence used by all physical resource blocks included in the M group physical resource block Some of them The same as said second spreading sequence.
The terminal device according to claim 28, wherein the same first spreading sequence means that the phase of the first spreading sequence is the same, and the difference of the first spreading sequence refers to the first expansion The phase of the frequency sequence is different.
The terminal device according to claim 28, wherein the second spreading sequence is the same, the phase of the second spreading sequence is the same, and the second spreading sequence is different, The phase of the frequency sequence is different.
The terminal device according to any one of claims 28-30, wherein the sending unit is further configured to:

And transmitting, by the M group of physical resource blocks, another plurality of information bits; wherein, when the transmitting unit transmits the plurality of information bits, the processing unit performs, by using a plurality of spreading sequences, the plurality of information bits Spreading, the plurality of spreading sequences are orthogonal to the first spreading sequence.
The terminal device according to any one of claims 28 to 31, wherein if the other terminal device multiplexes the M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence Spreading information bits transmitted by the other terminal device to the other terminal device The spreading sequences are orthogonal to each other, and the spreading sequences used by the second spreading sequence and the reference signal transmitted by the other terminal device to the other terminal device are orthogonal to each other.
The terminal device according to any one of claims 28 to 32, wherein the transmitting unit is configured to:

Transmitting the spread information bits on the physical resource blocks in each of the M sets of physical resource blocks, and transmitting and expanding on the physical resource blocks in each of the M sets of physical resource blocks The reference signal after the frequency.
The terminal device according to claim 33, wherein the processing unit is configured to spread the information bits by using a first spreading sequence, including:

Dividing the information bits into at least two sub-information;

The at least two pieces of sub-information are spread by at least two first spreading sequences; wherein the at least two first spreading sequences are orthogonal to each other.
The terminal device according to claim 34, wherein the transmitting unit is configured to transmit the spread information bits on a physical resource block in each of the M groups of physical resource blocks, including:

Transmitting the spread of the at least two pieces of sub-information on a physical resource block in each of the M sets of physical resource blocks.
The terminal device according to claim 27, wherein

The processing unit is further configured to: before the transmitting unit transmits the same information bit on the physical resource block in each of the M groups of physical resource blocks, divide the information bit into M sub-informations;

The transmitting unit is configured to transmit the same information bit on a physical resource block in each of the M groups of physical resource blocks, including: a set of physical resource blocks included in the M group of physical resource blocks Transmitting one of the M pieces of sub-information on the physical resource block; wherein the M sets of physical resource blocks transmit the M pieces of sub-information.
The terminal device according to claim 36, wherein

The processing unit is further configured to: in the group of the sending unit in the M group of physical resource blocks Before transmitting one of the M pieces of sub-information on each physical resource block included in the physical resource block, the one sub-information is spread by the first spreading sequence;

The transmitting unit is configured to transmit one of the M pieces of sub-information on each physical resource block included in a group of physical resource blocks of the M group of physical resource blocks, including: in the M group of physical resources The spread of the one sub-information on each physical resource block included in a set of physical resource blocks in the block.
The terminal device according to claim 37, wherein

The processing unit is further configured to: spread the reference signal by using a second spreading sequence before the transmitting unit transmits the reference signal on the physical resource block in each of the M sets of physical resource blocks ;

The transmitting unit is configured to transmit a reference signal on a physical resource block in each of the M groups of physical resource blocks, including: transmitting and expanding on a physical resource block in each of the M groups of physical resource blocks The reference signal after the frequency.
The terminal device according to any one of claims 36 to 38, wherein the transmitting unit is further configured to:

And transmitting, by the M group of physical resource blocks, another plurality of information bits; wherein, when transmitting the plurality of information bits, the terminal device uses a plurality of spreading sequences to spread the plurality of information bits, where The plurality of spreading sequences are orthogonal to the first spreading sequence.
The terminal device according to any one of claims 36 to 38, wherein if the other terminal device multiplexes the M sets of physical resource block transmission information bits and/or reference signals, the first spreading sequence a spreading sequence that is spread by the other terminal device to the information bits transmitted by the another terminal device, the second spreading sequence and the another terminal device being opposite to the other terminal device The spread reference sequences of the transmitted reference signals for spreading are orthogonal to each other.
The terminal device according to any one of claims 27 to 40, wherein the processing unit is configured to determine M groups of physical resource blocks, including:

The M sets of physical resource blocks are determined according to the total number of physical resource blocks and the number of times the information bits need to be repeatedly transmitted.
A terminal device, comprising:

a processing unit, configured to determine P physical resource blocks; P is a positive integer;

And a sending unit, configured to transmit information bits on the P physical resource blocks; where information bits on each physical resource block are discontinuous.
The terminal device according to claim 42, wherein

The processing unit is further configured to: spread the reference signal by using the second spreading sequence;

The sending unit is further configured to: transmit the spread reference signal on the P physical resource blocks.
The terminal device according to claim 43, wherein if the other terminal device multiplexes the P physical resource block transmission reference signals, the second spreading sequence is opposite to the other terminal device The spreading sequences of the reference signals transmitted by the other terminal device are spread orthogonal to each other.
A terminal device, comprising:

a transmitting unit, configured to transmit information bits on K sub-symbols included in a symbol for transmitting information bits in a physical resource block, and transmit a reference signal on remaining sub-symbols included in the symbol for transmitting information bits; The symbol for transmitting information bits includes at least two sub-symbols.
The terminal device according to claim 45, wherein each of the K sub-symbols carries the same information bit, or each of the K sub-symbols carries a different information bit.
The terminal device according to claim 45 or 46, wherein the terminal device further comprises a processing unit;

The processing unit is configured to: spread the information bits by using a first spreading sequence before the transmitting unit transmits the information bits on the K sub-symbols included in the symbol for transmitting information bits in the physical resource block ;

And transmitting, by the sending unit, information bits on the K sub-symbols included in the symbol for transmitting information bits in the physical resource block, including: transmitting the spread information bits on the K sub-symbols.
The terminal device according to claim 47, wherein if another terminal device multiplexes the K sub-symbol transmission information bits, the first spreading sequence and the another terminal device pair the other The spreading bits of the information bits transmitted by a terminal device for spreading are orthogonal to each other.
The terminal device according to any one of claims 45 to 48, wherein the terminal device further comprises a processing unit;

The processing unit is configured to: after the transmitting unit transmits the reference signal on the remaining sub-symbols included in the symbol for transmitting information bits, spread the reference signal by using a second spreading sequence;

The transmitting unit is configured to transmit the reference signal on the remaining sub-symbols included in the symbol for transmitting information bits, including: transmitting the spread reference signal on the remaining sub-symbols.
The terminal device according to claim 49, wherein if another terminal device multiplexes the remaining sub-symbol transmission reference signal, the second spreading sequence and the another terminal device pair the another The spread spectrum sequences for which the reference signals transmitted by a terminal device are spread are orthogonal to each other.
A terminal device according to any one of claims 45 to 50, characterized in that

If the number of sub-symbols included in the remaining sub-symbols is an even number, the remaining sub-symbols are discretely distributed on sub-carriers included in the physical resource block, and the number of sub-symbols included on each occupied sub-carrier is even.
A terminal device according to any of claims 45-51, wherein said remaining sub-symbols occupy an arbitrary position on said symbol for transmitting an uplink control signal.