WO2020061975A1

WO2020061975A1 - Method and device for signal transmission

Info

Publication number: WO2020061975A1
Application number: PCT/CN2018/108159
Authority: WO
Inventors: 王婷; 窦圣跃; 杨育波; 曹永照
Original assignee: 华为技术有限公司
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-04-02

Abstract

Provided in the present application are a method and device for signal transmission. The method comprises: a time unit set comprises a plurality of consecutive time units; a first time unit subset in the time unit set comprises at least two time units in the plurality of time units; and a second time unit subset in the time unit set also comprises at least one time unit in the plurality of time units. In addition, the time unit comprised in the first time unit subset is different from the time unit comprised in the second time unit subset. At least one terminal may send an SRS on at least one time unit in the first time unit subset, and sends a PUSCH on at least one time unit in the second time unit subset, thereby avoiding a possible conflict between transmissions of SRS and PUSCH, and improving the quality of signal transmission.

Description

Method and device for signal transmission

Technical field

The present application relates to the field of communications, and more particularly, to a method and device for signal transmission.

Background technique

With the development of wireless communication requirements and the increase of various mobile operator services, the overall demand for wireless communication capacity and the load of services are rapidly increasing. Considering the high cost of network device encryption, it is becoming increasingly urgent to increase the spectral efficiency of existing networks. Multiple-input multiple-output (MIMO) transmission can improve spectral efficiency. Among them, sounding reference signal (SRS) is a key factor to improve downlink MIMO performance.

When the SRS is multiplexed with other channels in a subframe, for example, the SRS is multiplexed with a physical uplink shared channel (PUSCH), which will cause a conflict between the SRS and the PUSCH, thereby reducing the quality or performance of the signal transmission. .

Summary of the Invention

The present application provides a method and device for signal transmission, which can help improve the quality or performance of signal transmission.

In a first aspect, a signal transmission method is provided. The method includes: sending at least one of a sounding reference signal SRS and a physical uplink shared channel PUSCH in a time unit set, and a first time unit sub-unit in the time unit set. The set is used to transmit SRS, and the second time unit subset in the time unit set is used to transmit PUSCH. The time unit set includes a plurality of consecutive time units, and any one of the time unit in the first time unit subset is related to the time unit. The time units in the second time unit subset are different, and the first time unit subset includes at least two time units.

The first time unit subset in the time unit set includes at least two time units in the plurality of time units, and any one time unit in the first time unit subset can be used for transmitting SRS. The second time unit subset in the time unit set also includes at least one time unit in the plurality of time units, and any one time unit in the second time unit subset can be used to transmit the PUSCH. In addition, the time unit included in the first time unit subset is different from the time unit included in the second time unit subset. The terminal sends at least one of SRS and PUSCH in the time unit set, or in other words, at least one terminal may send SRS on at least one time unit in the first time unit subset, and at least one terminal sends the The PUSCH is sent on at least one time unit in the second time unit subset, which avoids possible conflicts between the transmission of the SRS and the PUSCH, and improves the quality of signal transmission.

In some possible implementation manners, the second time unit subset includes at least one time unit subset in the time unit set except the first time unit subset, and the time unit set includes multiple time unit subsets. The multiple time unit subsets include the consecutive multiple time units.

Multiple consecutive time units included in the time unit set may be divided into multiple time unit subsets. If the first time unit subset in the multiple time unit subsets is used to transmit SRS, the multiple time unit subsets Any one or more time unit sub-sets in other time unit sub-sets in the set can be used to transmit PUSCH, which avoids possible conflicts between transmission of SRS and PUSCH, and improves the quality of signal transmission.

In some possible implementation manners, the second time unit subset includes at least one time unit in the time unit set other than the first time unit subset.

The time unit included in the first time unit subset in the time unit set is used to transmit SRS, and one or more time units in the time unit set other than the first time unit subset can be used to transmit PUSCH, that is, One or more time units other than the first time unit subset in the time unit set constitute the second time unit subset, which avoids possible conflicts between transmission of SRS and PUSCH, and improves the quality of signal transmission.

In some possible implementation manners, the first time unit subset includes a time unit with an odd number or an even number of time units in the time unit set, and all time units in the first time unit set are sequentially numbered.

All time units in the time unit set may be sequentially numbered, and the first time unit subset may include time units numbered odd, so that at least one time unit numbered even may form a second time unit set, so that the terminal is in At least two time units in the first time unit sub-set transmit SRS, and PUSCH is transmitted in at least one time unit in the second time unit sub-set, thereby reducing interference and improving communication quality.

In some possible implementation manners, the first time unit subset includes an odd-numbered time unit subset or an even-numbered time unit subset in the time unit set, and all times in the first time unit set The unit sub-collection is sequentially numbered.

In the case where the time unit set is divided into multiple time unit sub-sets, different time unit sub-sets may also be sequentially numbered, so that if the odd-numbered time unit sub-set is the first time unit sub-set, the multiple times The even-numbered one or more time unit subsets in the unit subset may be a second time unit subset. In this way, the terminal transmits SRS in at least two time units in the first time unit subset, and transmits PUSCH in at least one time unit in the second time unit subset, thereby reducing interference and improving communication quality.

In some possible implementation manners, the scale factor of the transmission block size for transmitting the PUSCH is related to the proportion of the number of time units included in the first time unit subset to all time units in the time unit set. The scale factor for the transmission block size of the transmission PUSCH is used to determine the transmission block size of the transmission PUSCH.

When the proportion of time units used to transmit SRS to the time unit set is small, the proportion of time units used to transmit PUSCH to the time unit set is large, then the scale factor of the transmission block size used to transmit the physical channel can be set. Bigger. The terminal may determine the ratio of the time unit transmission PUSCH to the time unit set according to the ratio of the time unit transmission to the time unit set for transmitting the SRS, and further determine the ratio of the time unit transmission PUSCH to the time unit set as the ratio of the TBS for transmitting the PUSCH factor.

In some possible implementation manners, the scale factor of the transmission block size for transmitting the PUSCH is a scale factor corresponding to a time unit number interval in which the number of time units included in the first time unit subset is located, where: At least one scaling factor of the transmission block size of the transmission PUSCH has a mapping relationship with at least one time unit number interval used for transmitting the SRS, and the scaling factor of the transmission block size for transmitting the PUSCH is used to determine the transmission block size of the transmission PUSCH.

The time unit number interval can be any subset from 0 to the total number of all time units included in the time unit, that is, there can be multiple time unit number intervals, and each time unit number interval corresponds to a PUSCH. The scale factor of the TBS, and the mapping relationship includes a correspondence between the multiple time unit number intervals and at least one scale factor, so that the terminal can use the time interval and the mapping relationship according to the time unit number interval in which the number of time units used for transmitting SRS is located. To determine the scale factor of the TBS used to transmit the PUSCH.

In some possible implementation manners, the scale factor of the transmission block size used to transmit the PUSCH is related to the proportion of the number of time units included in the second time unit subset to all time units in the time unit set. The scale factor for the transport block size used for transmitting the PUSCH is used to determine the transport block size for transmitting the PUSCH.

The second time unit subset may be related to the scale factor of the transmission block size used to transmit the PUSCH, so that the terminal may determine the scale factor of the transmission block size used to transmit the PUSCH according to the second time unit subset, that is, the second time The unit sub-set includes different time units, for example, the number of time units included is different, and the scale factor of the transmission block size for transmitting the PUSCH may also be different, that is, the flexibility of setting the scale factor is improved.

In some possible implementation manners, the scale factor of the transmission block size for transmitting the PUSCH is a scale factor corresponding to a time unit number interval in which the number of time units included in the second time unit subset is located, where: At least one scaling factor for the transmission block size of the transmission PUSCH has a mapping relationship with at least one time unit number interval for transmitting the PUSCH. The scaling factor for the transmission block size of the transmission PUSCH is used to determine the transmission block size of the transmission PUSCH.

The time unit set can be divided into multiple time unit number intervals, and each time unit number interval has a mapping relationship with a scale factor of a transmission block size for transmitting PUSCH, so that the terminal according to the second time unit subset includes The time unit number interval to which the time unit belongs can determine the scale factor of the transmission block size used to transmit the PUSCH.

In some possible implementation manners, the scale factor of the transmission block size used to transmit the PUSCH is related to the time domain type of the PUSCH, and the time domain type of the PUSCH is related to the first time unit subset, and is used for The scale factor of the transport block size of the transmission PUSCH is used to determine the transport block size of the transmission PUSCH.

The scale factor for the transmission block size used to transmit the PUSCH may be indirectly related to the first time unit subset. For example, the scale factor for the transmission block size used to transmit the PUSCH is related to the time domain type of the PUSCH, and the time domain type of the PUSCH. Related to the first time unit subset, so that the terminal can determine the time domain type of the PUSCH according to the first time unit set, and then determine the transmission block size for transmitting the PUSCH according to the time domain type of the PUSCH, so that the terminal can use appropriate transmission Block size transmission of PUSCH improves transmission performance of transmitting PUSCH.

In some possible implementation manners, the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is, where at least one of the time unit sets A time unit number interval has a mapping relationship with at least one time domain type for transmitting PUSCH.

The time unit set can be divided into multiple time unit number intervals, and each time unit number interval corresponds to a type of time domain of the PUSCH. In this way, the terminal can use the time unit in the time unit set according to the time unit included in the first time unit. The number interval determines the corresponding time domain type.

In some possible implementation manners, the time domain type of the PUSCH includes a subframe level, a slot level, or a subslot level. The time slot type of the subslot level includes a single-symbol subslot level and a multisymbol subslot level. level.

In some possible implementation manners, the type of information carried in the PUSCH is related to the time domain type of the PUSCH, and the information carried in the PUSCH includes bearer control information or bearer control information and data.

The PUSCH may be used to carry at least one of data and control information, that is, the PUSCH may be used to carry only control information, or only data, or data and control information. The type of information carried in the PUSCH may have a mapping relationship with the time domain type of the PUSCH, so that the terminal can determine the type of information carried in the PUSCH according to the time domain type of the PUSCH.

In some possible implementation manners, when the time domain type of the PUSCH is a slot level or a sub-slot level, the information carried in the PUSCH is control information.

If the time domain type of the PUSCH is slot-level or sub-slot-level, the information carried in the PUSCH is control information, thereby improving the transmission efficiency of transmission control information.

In some possible implementation manners, in a case where the time domain type of the PUSCH is a slot level or a subslot level and the frequency domain resource bandwidth for transmitting the PUSCH is less than or equal to N resource block RBs, The information carried is control information, where N> 4.

If the time domain type of the PUSCH is slot-level or sub-slot-level, and the frequency-domain resource bandwidth used to transmit the PUSCH is less than or equal to N RBs, the information carried in the PUSCH is control information, thereby improving transmission control. Information transmission efficiency.

According to a second aspect, a signal transmission method is provided. The method includes: receiving at least one of SRS and PUSCH in a set of time units, and a first subset of time units in the set of time units is used to transmit SRS. A second time unit subset in the time unit set is used to transmit the PUSCH. The time unit set includes a plurality of consecutive time units, and any one of the time units in the first time unit subset and the second time unit subset are The time units are different, and the first subset of time units includes at least two time units.

The first time unit subset in the time unit set includes at least two time units in the plurality of time units, and any one time unit in the first time unit subset can be used for transmitting SRS. The second time unit subset in the time unit set also includes at least one time unit in the plurality of time units, and any one time unit in the second time unit subset can be used to transmit the PUSCH. In addition, the time unit included in the first time unit subset is different from the time unit included in the second time unit subset. The network device may receive the SRS on at least one time unit in the first time unit subset, and receive the PUSCH on at least one time unit in the second time unit subset, so that transmission of SRS and PUSCH may be avoided. The conflict improves the quality of signal transmission.

All time units in the time unit set may be sequentially numbered, and the first time unit subset may include time units numbered odd, so that at least one time unit numbered even may form a second time unit set, such that the network device At least two time units in the first time unit subset can receive the SRS, and at least one time unit in the second time unit subset can receive the PUSCH, thereby reducing interference and improving communication quality.

In the case where the time unit set is divided into multiple time unit sub-sets, different time unit sub-sets may also be sequentially numbered, so that if the odd-numbered time unit sub-set is the first time unit sub-set, the multiple times The even-numbered one or more time unit subsets in the unit subset may be a second time unit subset. In this way, the network device can receive the SRS in at least two time units in the first time unit subset and at least one time unit in the second time unit subset can receive the PUSCH, thereby reducing interference and improving communication quality.

When the proportion of time units used to transmit SRS to the time unit set is small, the proportion of time units used to transmit PUSCH to the time unit set is large, then the scale factor of the transmission block size used to transmit the physical channel can be set. Bigger. The network device may determine the proportion of the time unit transmission of the PUSCH according to the proportion of the time unit set according to the proportion of the time unit transmitting the SRS, and further determine the proportion of the time unit transmission of the PUSCH to the time unit set as the TBS for transmitting the PUSCH. Scale Factor.

In some possible implementation manners, the scale factor of the transmission block size for transmitting the PUSCH is a scale factor corresponding to a time unit number interval in which the number of time units included in the first time unit subset is located, where: At least one scaling factor of the transmission block size of the transmission PUSCH has a mapping relationship with the time unit in the time unit subset of the time unit transmission set for at least one time unit number interval in the time unit set, and the transmission for transmitting the PUSCH The block size scale factor is used to determine the transport block size for transmitting the PUSCH.

The time unit number interval can be any subset from 0 to the total number of all time units included in the time unit, that is, there can be multiple time unit number intervals, and each time unit number interval corresponds to a PUSCH. The scale factor of the TBS, and the mapping relationship includes a correspondence between the multiple time unit number intervals and at least one scale factor, so that the network device can use the time unit number interval in which the number of time units used for transmitting SRS is located and the mapping. The relationship determines the scale factor of the TBS used to transmit the PUSCH.

The second time unit subset may be related to the scale factor of the transmission block size used to transmit the PUSCH, so that the network device may determine the scale factor of the transmission block size used to transmit the PUSCH according to the second time unit subset, that is, the second The time unit sub-set includes different time units, for example, the number of time units included is different, and the scale factor of the transmission block size for transmitting the PUSCH may also be different, that is, the flexibility of setting the scale factor is improved.

The time unit set can be divided into multiple time unit number intervals, and each time unit number interval has a mapping relationship with a scaling factor for transmitting a PUSCH transmission block size, so that the network device includes The scale interval of the number of time units to which the time unit belongs can be determined.

In some possible implementation manners, the scale factor of the transmission block size for transmitting the PUSCH is related to the time domain type of the PUSCH, and the time domain type of the PUSCH is related to the first time unit subset, and the The scale factor of the transport block size of the transmission PUSCH is used to determine the transport block size of the transmission PUSCH.

The scale factor for the transmission block size used to transmit the PUSCH may be indirectly related to the first time unit subset. For example, the scale factor for the transmission block size used to transmit the PUSCH is related to the time domain type of the PUSCH, and the time domain type of the PUSCH. Related to the first time unit subset, so that the network device can determine the time domain type of the PUSCH according to the first time unit set, and then determine the transmission block size for transmitting the PUSCH according to the time domain type of the PUSCH, so that the network device can adopt a suitable The transmission block size is used to transmit PUSCH, which improves the transmission performance of transmitting PUSCH.

In some possible implementation manners, the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is located, where at least one time unit number interval It has a mapping relationship with at least one time domain type used to transmit PUSCH, and the scale factor of the transmission block size used to transmit PUSCH is used to determine the transmission block size used to transmit PUSCH.

The time unit set can be divided into multiple time unit number intervals, and each time unit number interval corresponds to a type of time domain of the PUSCH. In this way, the network device can use the time unit number according to the number of time units included in the first time unit. The number interval determines the corresponding time domain type.

The PUSCH may be used to carry at least one of data and control information, that is, the PUSCH may be used to carry only control information, or only data, or data and control information. The type of information carried in the PUSCH may have a mapping relationship with the time domain type of the PUSCH, so that the network device may determine the type of information carried in the PUSCH according to the time domain type of the PUSCH.

According to a third aspect, a device for signal transmission is provided. The device may be a terminal or a chip in the terminal. The device has the functions of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, and can also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In a possible design, the device includes a transceiver module. Optionally, the device further includes a processing module. The transceiver module may be at least one of a transceiver, a receiver, and a transmitter. The transceiver module It may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further includes a storage module, which may be, for example, a memory. When a memory module is included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module may execute instructions stored in the storage module or derived from other instructions, so that the device executes the communication method of any one of the above aspects. In this design, the device may be a communication device or a network device.

In another possible design, when the device is a chip, the chip includes: a transceiver module, optionally, the chip further includes a processing module, and the transceiver module may be, for example, an input / output interface and a pin on the chip. Or circuit, etc. The processing module may be, for example, a processor. The processing module can execute instructions to cause a chip in the terminal to execute the foregoing first aspect and any possible implemented communication method. Optionally, the processing module may execute instructions in a storage module, and the storage module may be a storage module in a chip, such as a register, a cache, and the like. The storage module can also be located inside the communication device, but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM).

Wherein, the processor mentioned above may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above. Various aspects of the communication method are executed by integrated circuits.

According to a fourth aspect, an apparatus is provided, and the apparatus may be a network device or a chip in the network device. The device has the functions of implementing the second aspect and various possible implementations. This function can be realized by hardware, and can also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In a possible design, the device includes a transceiver module. Optionally, the device further includes a processing module. The transceiver module may be at least one of a transceiver, a receiver, and a transmitter. The transceiver module It may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further includes a storage module, which may be, for example, a memory. When a memory module is included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored by the storage module or derived from other instructions, so that the device executes the communication method of the second aspect and various possible implementation manners. In this design, the device may be a network device.

In another possible design, when the device is a chip, the chip includes a transceiver module. Optionally, the device further includes a processing module. The transceiver module may be, for example, an input / output interface, a pin on the chip. Or circuit, etc. The processing module may be, for example, a processor. The processing module can execute instructions to cause a chip in the terminal to execute the second aspect and any possible implemented communication method. Optionally, the processing module may execute instructions in a storage module, and the storage module may be a storage module in a chip, such as a register, a cache, and the like. The storage module can also be located inside the communication device, but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM).

According to a fifth aspect, a computer storage medium is provided, and the computer storage medium stores program code, where the program code is used to instruct instructions to execute the method in the first aspect or the second aspect or any possible implementation manner thereof.

According to a sixth aspect, a computer program product containing instructions is provided, which when run on a computer, causes the computer to execute the method in the first or second aspect or any possible implementation manner thereof.

According to a seventh aspect, a communication system is provided. The communication system includes a device having functions for implementing the methods in the first aspect and various possible designs, and a method for implementing the methods in the second aspect and various possible designs. Functional device.

According to an eighth aspect, a processor is provided, which is coupled to a memory, and is configured to execute the method in the first or second aspect or any possible implementation manner thereof.

In a ninth aspect, a chip is provided. The chip includes a processor and a communication interface, where the communication interface is used to communicate with an external device or an internal device, and the processor is used to implement the first or second aspect or any possible Method in implementation.

Optionally, the chip may further include a memory, and the memory stores instructions, and the processor is configured to execute the instructions stored in the memory or originate from other instructions. When the instruction is executed, the processor is configured to implement the method in the first aspect or the second aspect described above or any possible implementation manner thereof.

Optionally, the chip may be integrated on a terminal or a network device.

Based on the above technical solution, the terminal may send the SRS on at least two time units included in the first time unit subset in the time unit set, and send on the at least one time unit included in the second time unit subset in the time unit set. PUSCH, where the time unit included in the first time unit subset is different from the time unit included in the second time unit subset, which avoids possible conflicts between the transmission of SRS and PUSCH in the time unit set and improves signal transmission the quality of.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a communication system of the present application;

FIG. 2 is a subframe structure for transmitting SRS;

FIG. 3 is another seed frame structure for transmitting SRS;

4 is a schematic flowchart of a signal transmission method according to an embodiment of the present application;

5 is a schematic diagram of a signal transmission method according to an embodiment of the present application;

6 is a schematic diagram of a signal transmission method according to another embodiment of the present application;

7 is a schematic diagram of a signal transmission method according to another embodiment of the present application;

8 is a schematic diagram of a signal transmission method according to another embodiment of the present application;

FIG. 9 is a schematic block diagram of a signal transmission apparatus according to an embodiment of the present application; FIG.

10 is a schematic structural diagram of a signal transmission apparatus according to an embodiment of the present application;

11 is a schematic block diagram of a signal transmission apparatus according to another embodiment of the present application;

FIG. 12 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application; FIG.

13 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application;

14 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application;

15 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application;

FIG. 16 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application.

detailed description

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a global mobile communication (GSM) system, a code division multiple access (CDMA) system, and a broadband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Global Interoperability for Microwave Access (WiMAX) communication system, 5th Generation (future generation) 5G) system or new radio (NR).

The terminal in this embodiment of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user Device. The terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital processing (personal digital assistant), and a wireless communication function. Handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network, or terminals in the future evolved public land mobile network (PLMN), etc. This is not limited in the embodiments of the present application.

The network device in the embodiment of the present application may be a device for communicating with a terminal, and the network device may be a global mobile communication (GSM) system or a code division multiple access (CDMA) system. Base station (BTS) can also be a base station (nodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolutionary base station (evolutional nodeB) in an LTE system , ENB or eNodeB), or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, access point, vehicle-mounted device, wearable device, and future 5G The network device in the network or the network device in a future evolved PLMN network is not limited in the embodiments of the present application.

FIG. 1 is a schematic diagram of a communication system of the present application. The communication system in FIG. 1 may include at least one terminal (for example, terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is used to provide communication services for the terminal and access the core network. The terminal can access the network by searching for synchronization signals, broadcast signals, and the like sent by the network device 70, so as to perform communication with the network. The terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink / downlink transmission directly with the network device 70. In addition, the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send scheduling information to the terminal 40 and the terminal 60.

In order to facilitate understanding of the embodiments of the present application, the following elements are introduced before the present application is introduced.

Time-frequency resources:

Network devices and terminals can perform data transmission through air interface resources. Air interface resources can include time domain resources and frequency domain resources. Time domain resources and frequency domain resources can be referred to as "time-frequency resources." The frequency domain resource may be located within a set frequency range. The frequency range may also be referred to as a "frequency band" or "frequency band", and the width of the frequency domain resource may be referred to as a "bandwidth (BW)".

Time-frequency resources may include time domain and frequency domain. For example, the unit in the time domain may be a subframe, a time slot, or a symbol, or other time unit, and the unit in the frequency domain may be a resource block (RB) or a subcarrier, or other frequency domain unit. The smallest resource unit in the resource grid may be called a "resource element (RE)", and an RE may be a resource corresponding to one subcarrier and one symbol. One RB may include one or more subcarriers in the frequency domain, for example, it may be 12 subcarriers. A subframe may include one or more time slots, for example, a subframe may include 2 time slots, and a time slot may include one or more symbols. For example, a time slot may include 7 symbols (for example, in LTE Under common cyclic prefix (CP), or 6 symbols (for example, under extended cyclic prefix), or 14 symbols, or 12 symbols.

It should be noted that the data transmission may be that the sending end processes the data to be sent accordingly. For example, the data processing in LTE may be the data to be sent. A cyclic redundancy check code (CRC) may be added, and then Channel coding and rate matching, then scrambling, modulation, layer mapping, precoding, and finally mapping to the RE to generate OFDM symbols, which are sent through the antenna port.

Frame structure:

The LTE system is divided into a frequency division duplex (FDD) system and a time division duplex (TDD) system. The FDD system refers to the use of frequency division multiplexing in the uplink and downlink, occupying different frequency resources. ; TDD system refers to the uplink and downlink using time division multiplexing, occupying the same frequency domain resources. The subframe used for downlink transmission is called a downlink subframe, and the subframe used for uplink transmission is called an uplink subframe.

In the TDD system, in addition to the uplink subframe and the downlink subframe, there is a special subframe, which includes both uplink symbols and downlink symbols. Specifically, the network device sends an uplink-downlink ratio to the terminal, that is, which subframes are uplink subframes (U), which subframes are downlink subframes (D), and which subframes are special subframes (S). For example, as shown in Table 1, Table 1 shows seven uplink and downlink subframe configurations.

Table 1

SRS:

The terminal sends an SRS, and the network device obtains channel information according to the SRS, and performs channel detection. For the TDD system, because of the uplink and downlink channel dissimilarity, network equipment can obtain uplink channel information according to SRS, and then use the dissimilarity to obtain downlink channel information, that is, SRS can facilitate network equipment for uplink and downlink data scheduling. In LTE, SRS is transmitted only on the last symbol of an uplink subframe or on one or more symbols of UpPTS. For example, as shown in FIG. 2, the SRS is transmitted on the last symbol of the uplink subframe; as shown in FIG. 3, the SRS can be in one, two, four, or six of the six symbols included in the UpPTS. The SRS is transmitted, where the number of symbols may be specifically notified to the terminal by the network device through high-level signaling.

The SRS may have a comb-tooth structure in the frequency domain, that is, mapping is performed at intervals of 1 or 3 subcarriers. In the case that an RB includes 12 subcarriers, if the comb structure of the SRS in the frequency domain is spaced by 1 subcarrier, the comb structure of the SRS can be two types; if the SRS is in the frequency domain In the case where the comb tooth structure is 3 subcarriers spaced apart, the comb tooth structure of the SRS can be 4 types.

For non-periodic SRS transmission, there may be no frequency hopping. For periodic SRS, frequency hopping may be used. At this time, frequency hopping may be between sub-frames, and the frequency domain resource positions occupied by SRS on different sub-frames may different. It may also be frequency hopping between slots or frequency hopping between symbols. That is, the frequency domain resource positions occupied by the SRS on different time slots or symbols may be different.

Transport block size (transport block size, TBS):

During the transmission of the signal, the value of TBS is related to the modulation coding scheme (MCS) of the signal, the mapped time-frequency resources, and the number of layers. For example, the value of TBS in LTE can be obtained by looking up the TBS table according to the MCS and the number of allocated RBs. For example, the terminal receives downlink control information (DCI) sent by the network device, and determines the value of MCS according to the modulation and coding domain in the DCI. The MCS in the DCI can be represented by a 5-bit field of the DCI. Take the value of the 5 bits to obtain the MCS value IMCS, as shown in Table 2, and then determine the PRB number NPRB occupied by the PUSCH transmission according to the frequency domain resources indicated by the network device.

Table 2

The TBS number is determined according to the MCS table, and combined with the assigned PRB number NPRB, the TBS value can be determined according to the TBS table. For example, Table 3 shows that it is a TBS table (only a part of the table is truncated). Table 3 shows that the number of resource unit REs in a subframe of a PRB is 120 (or other RE numbers). The number of layers is 1 to design the value of TBS. As shown in Table 3, if the TBS number is 5 and the number of PRBs is 5, the table can be obtained with a value of 424; if the TBS number is 8 and the number of PRBs is 10, the table can be obtained with a value of TBS 1384, and so on. According to Table 3, the value of TBS under any combination of TBS number and PRB number can be obtained. Among them, the maximum number of RBs in LTE can be 110.

table 3

It should be noted that, since the available symbols for data transmission in a special subframe are less than the available symbols for data transmission in a normal subframe, the value of TBS becomes correspondingly smaller. For example, after the TBS value is determined through the above method, the TBS value can be multiplied by a scale factor of 0.75 to obtain the final TBS value.

In a traditional solution, during SRS transmission, a network device may send a sub-frame configuration of the SRS through high-level signaling, indicating a transmission period and an offset of the SRS, and the terminal determines a specific time domain resource for transmitting SRS according to the high-level signaling. In addition, the network device may also send SRS frequency domain resources through high-level signaling, and the terminal determines the specific frequency domain resources for transmitting SRS according to the high-level signaling.

It should be noted that, in the traditional solution, the last symbol in the last subframe in the transmission period indicated by the high-level signaling is usually used to transmit the SRS.

When SRS is multiplexed with other channels in one subframe, for example, SRS and PUSCH multiplexing will cause collision between SRS and PUSCH, thereby reducing the quality or performance of signal transmission.

FIG. 4 shows a schematic flowchart of a signal transmission method according to an embodiment of the present application.

401. The terminal generates SRS and PUSCH.

402. The terminal sends at least one of SRS and PUSCH in a time unit set. A first time unit subset in the time unit set is used for transmitting SRS, and a second time unit subset in the time unit set is used for transmission. PUSCH, the time unit set includes a plurality of consecutive time units, the first time unit subset includes at least two time units, and any one time unit in the first time unit subset and the second time unit subset The time units in are different.

Specifically, the time unit set includes a plurality of consecutive time units. The first time unit subset in the time unit set includes at least two time units in the plurality of time units, and any one time unit in the first time unit subset can be used for transmitting SRS. The second time unit subset in the time unit set also includes at least one time unit in the plurality of time units, and any one time unit in the second time unit subset can be used to transmit PUSCH. In addition, the time unit included in the first time unit subset is different from the time unit included in the second time unit subset. The terminal sends at least one of SRS and PUSCH in the time unit set, or in other words, at least one terminal may send SRS on at least one time unit in the first time unit subset, and at least one terminal sends the The PUSCH is sent on at least one time unit in the second time unit subset, which avoids possible conflicts between the transmission of the SRS and the PUSCH, and improves the quality of signal transmission.

It should be noted that the frequency domain resources used to transmit the SRS and the frequency domain resources used to transmit the physical shared channel may be the same or different, which is not limited in this application.

It should also be noted that in the embodiment of the present application, step 401 may not be performed. For example, if the SRS and PUSCH have been generated or obtained from other places, the terminal does not need to generate SRS and PUSCH again.

It should also be noted that the SRS and PUSCH may belong to the same terminal; or they may not be different terminals, which is not limited in this application. For example, SRS is the SRS of the first terminal in a cell, and PUSCH is the PUSCH of the second terminal in the same cell. In this way, for a certain terminal (such as the first terminal), the SRS can be sent only in time units in the first time unit set. , Another terminal (for example, the second terminal) may send the PUSCH only in a time unit in the second time unit set. That is, in the case that SRS and PUSCH belong to different terminals, if the execution subject in step 402 is the first terminal, the first terminal sends the SRS in the set of time units; if the execution subject in step 402 is the first terminal Two terminals, the second terminal sends a PUSCH in the set of time units. In the case that the SRS and the PUSCH belong to the same terminal, step 402 may specifically be that the terminal sends the SRS and the PUSCH in the set of time units.

It should be understood that multiple consecutive time units included in the time unit set may constitute a subframe, a time slot, a mini time slot, a sub time slot, or a micro time slot. The first time unit subset may be composed of multiple consecutive time units, or may be composed of partially continuous time units, or may be composed of all discontinuous time units; the second time unit subset may be composed of It is composed of multiple continuous time units, or may be composed of partially continuous time units, or may be composed of all discontinuous time units, which is not limited in this application.

It should also be understood that the time unit for transmitting SRS in the embodiments of the present application may refer to the time unit used for sending or receiving SRS. Accordingly, the time unit used for transmitting the PUSCH may refer to a time unit used for transmitting or receiving the PUSCH.

For example, the time unit may be an OFDM symbol. In the case that the time unit set is a subframe, the first time unit subset may be a time slot, mini time slot, sub time slot, or micro time slot composed of multiple consecutive OFDM symbols. Time slot; the second time unit subset may also be a time slot, mini time slot, sub time slot, or micro time slot composed of multiple OFDM symbols. Or the first time unit sub-set may be composed of discontinuous OFDM symbols; the second time unit sub-set may also be composed of discontinuous OFDM symbols, which is not limited in this application.

It should be understood that the time unit set may be a subframe having a subframe structure as shown in FIG. 2, or may be composed of UpPTS as shown in FIG. 3.

Optionally, the second time unit subset may include at least one time unit subset in the time unit set other than the first time unit subset, and the time unit set includes a plurality of time unit subsets, and the multiple The time unit subset includes the consecutive multiple time units.

Specifically, multiple consecutive time units included in the time unit set may be divided into multiple time unit subsets. If the first time unit subset in the multiple time unit subsets is used to transmit SRS, the multiple Any one or more time unit sub-sets in other time unit sub-sets in the time unit sub-set can be used to transmit PUSCH, which avoids possible conflicts between transmission of SRS and PUSCH, and improves the quality of signal transmission.

It should be noted that the time unit set is divided into multiple time unit subsets, and the number of time units included in different time unit subsets may be the same or different, which is not limited in this application.

Optionally, the second time unit subset may include at least one time unit in the time unit set other than the first time unit subset.

Specifically, the time unit included in the first time unit subset in the time unit set is used for transmitting SRS, and one or more time units in the time unit set except the first time unit subset can be used for transmission. PUSCH, that is, one or more time units in the time unit set except the first time unit sub-set constitute the second time unit sub-set, which avoids possible conflicts between transmission of SRS and PUSCH, and improves signal transmission the quality of.

Optionally, the terminal may determine the time unit included in the first time unit subset first, and then determine the time unit included in the second time unit subset according to the time unit set and the first time unit subset, which may help the terminal Select a time unit different from the time unit used to transmit the SRS to transmit the PUSCH, thereby reducing interference and improving communication quality.

For example, the time domain resource used to transmit the PUSCH may be a time unit in the time unit set other than the time unit used to transmit the SRS. For example, the time unit set is used as a sub-frame, and one sub-frame includes two time slots, and one time slot includes 7 OFDM symbols, but this application is not limited thereto. As shown in FIG. 5, subframe n includes time slot 2n and time slot 2n + 1, time slot 2n includes 7 OFDM symbols, time slot 2n + 1 includes 7 OFDM symbols, and all symbols included in time slot 2n are uniformly ordered. Numbering, that is, the symbol numbering can be from 0 to 6, and all symbols included in slot 2n + 1 are sequentially numbered uniformly, that is, the symboling number can be from 0 to 6. If symbols 0 to 5 in slot 2n in the subframe n are used to transmit SRS, then symbol 6 in slot 2n in the subframe n and all symbols included in slot 2n + 1 can be used for transmission PUSCH.

Optionally, the terminal may also determine the time unit included in the second time unit subset first, and then determine the time unit included in the first time unit subset according to the time unit subset and the second time unit subset, which may help The terminal chooses to transmit the SRS in a different time unit from the time unit used to transmit the PUSCH, thereby reducing interference and improving communication quality.

Optionally, the terminal may receive resource configuration information, where the resource configuration information is used to indicate a time unit for transmitting SRS, and / or a time unit for transmitting PUSCH. Accordingly, the network device sends the resource configuration information.

It should be noted that, in the embodiment of the present application, the resource configuration information may also be used to configure frequency domain resources for transmitting SRS and / or PUSCH. The frequency domain resource for transmitting the SRS may be less than or equal to the system bandwidth.

It should also be noted that the resource configuration information may be cell-level resource configuration information or UE-level resource configuration information. The cell-level resource configuration information is resource configuration information that can be used by all terminals in the cell. The UE-level resource configuration information is resource configuration information used for a certain terminal. Specifically, the cell-level resource configuration information may be sent as public information, and the UE-level resource configuration information may be sent as private information.

Optionally, the resource configuration information may be carried in high-level signaling and sent in physical layer signaling, which avoids separate transmission and saves signaling overhead.

It should be understood that the high-level signaling may be radio resource control (RRC) signaling or medium access control (MAC) signaling or other high-level signaling, and the physical layer signaling may be downlink control information ( downlink control information (DCI) or other physical layer signaling.

Optionally, all time units in the time unit set may be sequentially numbered, and the first time unit subset may include time units numbered odd, so that at least one time unit numbered even may form a second time unit set In this way, the terminal transmits SRS in at least two time units in the first time unit subset, and transmits PUSCH in at least one time unit in the second time unit subset, thereby reducing interference and improving communication quality.

Specifically, a time unit for transmitting the PUSCH may be determined according to a symbol number used for transmitting the SRS. For example, if the symbol number used to transmit the SRS is odd, the time domain resource used to transmit the PUSCH may be an even numbered symbol. If the symbol number used to transmit the SRS is even, the time domain resource used to transmit the PUSCH may be an odd numbered symbol.

For example, as shown in FIG. 6, a set of time units is taken as one subframe, one subframe includes two time slots, and one time slot includes seven OFDM symbols, but this application is not limited thereto. As shown in FIG. 6, subframe n includes time slot 2n and time slot 2n + 1, time slot 2n includes 7 OFDM symbols, time slot 2n + 1 includes 7 OFDM symbols, and all symbols included in time slot 2n are uniformly ordered. Numbering, that is, the symbol numbering can be from 0 to 6, and all symbols included in slot 2n + 1 are sequentially numbered uniformly, that is, the symboling number can be from 0 to 6. If the odd-numbered OFDM symbols in the subframe n are used to transmit the SRS, the even-numbered OFDM symbols in the subframe n can be used to transmit the PUSCH. For example, symbols 0,2,4,6 in time slot 2n are used to transmit SRS, and symbols 1,3,5 in time slot 2n can be used to transmit PUSCH. If SRS is not transmitted in 2n + 1, the symbols in slot 2n + 1 can be used to transmit PUSCH. If symbols 0,2,4,6 in 2n + 1 are used to transmit SRS, symbols 1,3,5 in time slot 2n + 1 can be used to transmit PUSCH.

It should be noted that the time unit set is a sub-frame, and the sub-frame includes multiple time slots, and the symbols in each time slot may be sequentially numbered. For example, odd-numbered OFDM symbols in the 7 OFDM symbols in time slot n may be used to transmit SRS, and even-numbered OFDM symbols in the 7 OFDM symbols in time slot 2n may be used to transmit PUSCH. Time slot 2n + 1 can be similar to time slot n. Odd numbered OFDM symbols can be used to transmit SRS, and even numbered OFDM symbols can be used to transmit PUSCH.

Optionally, a time domain resource for transmitting a PUSCH may be determined according to a symbol position number used for transmitting SRS.

For example, if the symbol position used to transmit the SRS is an odd number of symbols, the time domain resource used to transmit the PUSCH may be an even number of symbols. If the symbol position for transmitting the SRS is an even number of symbols, the time domain resource used for transmitting the PUSCH may be an odd number of symbols.

It should be noted that the time unit set is a sub-frame, and the sub-frame includes multiple time slots, and the symbols in each time slot may be sequentially numbered. For example, the odd-numbered symbol of the 7 OFDM symbols in time slot 2n may be used to transmit the SRS, and the even-numbered symbol of the 7 OFDM symbols in time slot 2n may be used to transmit the PUSCH. Time slot 2n + 1 can be similar to time slot 2n. Odd numbered OFDM symbols can be used to transmit SRS, and even numbered OFDM symbols can be used to transmit PUSCH. Alternatively, time slots 2n + 1 and 2n determine the symbols that can be used to transmit PUSCH in the respective time slots independently according to the symbols that can be used to transmit SRS in each time slot. Alternatively, the symbols in the time slot 2n and the time slot 2n + 1 may be consecutively numbered to determine whether it is an odd-numbered symbol or an even-numbered symbol. That is, if the symbols that can be used to transmit SRS in subframe n are an odd number of symbols, the symbols that can be used to transmit PUSCH in subframe n are an even number of symbols.

For example, FIG. 7 illustrates that the set of time units is one subframe, one subframe includes two time slots, and one time slot includes seven OFDM symbols. However, this application is not limited thereto. As shown in FIG. 7, subframe n includes time slot 2n and time slot 2n + 1, time slot 2n includes 7 OFDM symbols, time slot 2n + 1 includes 7 OFDM symbols, and all symbols included in time slot 2n are ordered in a unified order. Numbering, that is, the symbol numbering can be from 0 to 6, and all symbols included in slot 2n + 1 are sequentially numbered uniformly, that is, the symboling number can be from 0 to 6. If the odd-numbered symbols in the subframe are used to transmit the SRS, the even-numbered symbols in the subframe may be used to transmit the PUSCH. For example, the 1,3,5,7,9, ... symbols in a subframe are used to transmit SRS, and the 2,4,6,8, ... in the subframe can be used to transmit PUSCH.

For example, the 1st, 3rd, 5th, and 7th symbols in time slot 2n are used to transmit SRS, and the 2nd, 4th, and 6th symbols in time slot 2n can be used to transmit PUSCH. If SRS is not transmitted in 2n + 1, the symbols in slot 2n + 1 can be used to transmit PUSCH. If the 2,4,6 symbols in 2n + 1 are used to transmit SRS, the 1,3,5 symbols in slot 2n + 1 can be used to transmit PUSCH.

Optionally, in the case that the time unit set is divided into multiple time unit sub-sets, different time unit sub-sets may also be sequentially numbered, so that if the odd-numbered time unit sub-set is the first time unit sub-set, then The even-numbered one or more time unit subsets in the plurality of time unit subsets may be a second time unit subset.

Optionally, a time unit for transmitting a PUSCH may be determined according to a slot number used for transmitting an SRS.

For example, if the number of timeslots used to transmit SRS is odd, the time domain resources used to transmit PUSCH may be even-numbered timeslots. If the number of timeslots used to transmit SRS is even, the time domain resources used to transmit PUSCH may be odd-numbered timeslots.

For example, as shown in FIG. 8, the time unit set is subframe n, and the time unit subset is time slot. When one subframe includes 2 time slots, subframe n includes time slot 2n and time slot 2n + 1. For subframe n, if the SRS is transmitted in slot 2n, the PUSCH is transmitted in slot 2n + 1. For subframe n, if the SRS is transmitted in slot 2n + 1, the PUSCH is transmitted in slot 2n. If the SRS is transmitted in even time slots, the PUSCH can be transmitted in odd time slots. If the SRS is transmitted in odd time slots, the PUSCH can be transmitted in even time slots.

Optionally, all time units in the time unit set may be sequentially numbered, and the first time unit subset may include time units that are evenly numbered, so that at least one time unit that is oddly numbered may form a second time unit set .

Optionally, all time unit subsets in the time unit set may also be sequentially numbered. The first time unit subset may include an even numbered time unit subset, and the second time unit subset includes an odd numbered unit. Time unit sub-collection.

The following is a scheme for determining a transmission block size for transmitting a PUSCH. This embodiment may be combined with the foregoing embodiment, or may be used as an independent embodiment, which is not limited in this application.

It should be noted that the same terms in the embodiments of the present application have the same meaning. To avoid repetition, details are not described herein.

Optionally, the transmission block size used to transmit the PUSCH in the embodiment of the present application may be the terminal obtaining the transmission block size multiplied by a scale factor by looking up a TBS table (such as Table 2) according to the MCS value and RB number.

Specifically, if the set of time units is composed of UpPTS in the special subframe shown in FIG. 3, or some OFDM symbols in the subframe shown in FIG. 2 are used to transmit SRS (for example, another part of OFDM symbols are used to transmit PUSCH), The transmission block size used to transmit the PUSCH may be the product of the value obtained by searching in Table 2 times the scale factor. In this way, the terminal can transmit the PUSCH according to an appropriate transmission block size, thereby further improving the transmission performance of the PUSCH.

Optionally, the terminal may determine a scale factor of a transmission block size for transmitting the PUSCH according to the first time unit subset.

Optionally, the first subset of time units may refer to time units used for transmitting SRS.

Specifically, the first subset of time units may be related to the size of the transmission block used to transmit the PUSCH, so that the terminal may determine the size of the scale factor of the size of the transmission block used to transmit the PUSCH according to the time unit used to transmit the SRS, that is, the first The time unit sub-set includes different time units, and a scale factor of a transmission block size for transmitting a PUSCH may also be different, that is, flexibility in setting the scale factor is improved.

Optionally, the terminal determining the transmission block size for transmitting the PUSCH according to the time unit for transmitting the SRS may specifically determine the scaling factor for the transmission block size for transmitting the PUSCH according to the ratio of the time unit for transmitting the SRS to the time unit set. .

Optionally, the time unit set may be a data scheduling unit such as a subframe or a time slot.

Specifically, if the proportion of time units used to transmit SRS to the time unit set is small, the proportion of time units used to transmit PUSCH to the time unit set is large, then the scale factor of the transmission block size used to transmit the physical channel Can be set larger. The terminal may determine the ratio of the time unit transmission PUSCH to the time unit set according to the ratio of the time unit transmission to the time unit set for transmitting the SRS, and further determine the ratio of the time unit transmission PUSCH to the time unit set as the proportion of the TBS for transmitting the PUSCH. factor.

Optionally, the scaling factor of the transport block size used to transmit the PUSCH may be determined according to the proportion of the time unit used to transmit the SRS to the symbols of the subframe.

For example, if the time unit for transmitting SRS is 0 OFDM symbols, the scale factor of TBS for transmitting PUSCH may be 1;

If the first time unit subset includes OFDM symbols in half a time slot, the scale factor of TBS for transmitting PUSCH may be 1/2;

If the first time unit subset includes n OFDM symbols, the scale factor of TBS for transmitting PUSCH may be (14-n) / 14 (for normal CP (NCP), one subframe includes 14 OFDM Symbols) or (12-n) / 12 (for extended CP (ECP), one subframe includes 12 OFDM symbols).

Optionally, the terminal determines the scale factor of the TBS for transmitting the PUSCH according to the first time unit subset. Specifically, the terminal may determine the TBS for transmitting the PUSCH according to the number of time units in which the time unit for transmitting the SRS is located and the first mapping relationship. Scale factor.

Specifically, the time unit number interval may be any subset from 0 to the total number of all time units included in the time unit, that is, there may be multiple time unit number intervals, and each time unit number interval corresponds to The scale factor of the TBS of a PUSCH, and the first mapping relationship includes a correspondence between the multiple time unit number intervals and at least one scale factor, as shown in Table 4, so that the terminal can use the number of time units for transmitting SRS. The interval between the number of time units and the first mapping relationship determines the scale factor of the TBS used to transmit the PUSCH.

Optionally, the interval of the number of time units may refer to the number of time domain units included, such as the number of symbols included.

Table 4

It should be noted that the scale factor is a value less than or equal to 1, and the scale factors corresponding to different time unit intervals may be the same or different. For example, f1, f2, f3, and f4 can be set to 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/12, 2/3, 2 Any of 5, 3/4, 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7, or 5/7.

For example, the OFDM symbol is used as an example for description. As shown in Table 5, when the SRS occupies the number of symbols in the interval of 0 to 2, the scale factor can be set to 1; the SRS occupies the interval of 3 to 7 In the case of the number of symbols, the scale factor can be set to 1/2; in the case of SRS occupying the number of symbols in the range of 8 to 12, the scale factor can be set to 1/6; SRS occupies in the range of 13 to 14 In the case of the number of symbols, the scale factor can be set to 1/12.

table 5

It should be understood that the first mapping relationship may be predefined; or the terminal may receive first indication information indicating the first mapping relationship. Accordingly, the network device sends the first indication information. That is, the mapping relationship between the number of time units and the scale factor can be configured by the network device.

Optionally, the terminal may also receive second indication information, where the second indication information is used to indicate division of the number of time units. Accordingly, the network device sends the second indication information.

Optionally, the division of the interval of the number of time units used to transmit the SRS may be equally divided, that is, the number of time units included in different intervals of the number of time units is the same. For example, for an NCP including 14 OFDM symbols, it can be divided into 5 time unit number intervals, and each time unit number interval includes a value of 3 OFDM symbols; for an ECP including 12 OFDM symbols, it can be divided into 4 time unit number intervals, each time unit number interval includes a value of 3 OFDM symbols.

It should be noted that if the time units included in the time unit set cannot be divided into equal proportions, the extra time units can be put into any number of time unit intervals.

Table 6

It should be noted that, in the case of NCP, the scale factor of TBS for transmitting PUSCH corresponding to the number of time units for transmitting SRS in the case of ECP may be the same or different, which is not limited in this application. . For example, Table 7 shows that the scale factors of TBS for PUSCH transmission corresponding to the interval of the number of time units in the NCP and ECP cases are the same, where X1, X2, X3, X4, Y1, Y2, Y3, and Y4 are integers. f1, f2, f3, and f4 can be any value less than or equal to 1, for example, f1, f2, f3, and f4 can be set to 1, 1/2, 1/3, 1/4, 1/5, 1 / 6, 1/8, 1/12, 2/3, 2/5, 3/4, 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7 Any one of 5/7 is shown in Table 8 more specifically. Tables 9 and 10 show that the scale factors of TBS for PUSCH transmission corresponding to the interval of the number of time units in the NCP and ECP cases are different, that is, at least one of the following is satisfied: f1 ≠ f1 ′, f2 ≠ f2 ′, f3 ≠ f3 ', f4 ≠ f4', ..., where X1, X2, X3, X4, Y1, Y2, Y3, Y4 are integers, f1, f2, f3, and f4 are arbitrary values less than or equal to 1, f1 ' F2 ', f3', f4 'are arbitrary values less than or equal to 1. For example, f1, f2, f3, f4, f1 ', f2', f3 ', f4' can be set to 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1 / 8, 1/12, 2/3, 2/5, 3/4, 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7, 5/7 Any of the items is shown in Tables 11 and 12 more specifically.

Table 7

Table 8

Table 9

Table 10

Table 11

Table 12

Optionally, the terminal may determine a scale factor of a transmission block size for transmitting the PUSCH according to the second time unit subset.

Specifically, the second time unit sub-set may be related to a scale factor of a transmission block size used for transmitting the PUSCH, so that the terminal may determine the scale factor of the transmission block size used to transmit the PUSCH according to the second time unit subset, that is, The second time unit subset includes different time units. For example, the number of time units included in the second time unit subset is different. The scale factor of the transmission block size used to transmit the PUSCH may also be different, that is, the flexibility of setting the scale factor is improved.

Optionally, the correlation between the second time unit sub-set and the scale factor of the transmission block size used for transmitting the PUSCH may be specifically related to the proportion of time units included in the second time unit sub-set to all time units in the time unit set.

Specifically, the terminal may determine a scale factor of a transmission block size for transmitting the PUSCH according to a ratio of data of time units included in the second time unit subset to all time units in the time unit set. For example, the ratio of the time units included in the second time unit subset to all time units in the time unit set has a mapping relationship with the scale factor of the transmission block size used to transmit the PUSCH, or the time units included in the second time unit subset A ratio of the number of the time units to all time units in the time unit set is determined as a scale factor of a transmission block size for transmitting the PUSCH.

Optionally, the correlation between the second time unit sub-set and the scale factor of the transmission block size used for transmitting the PUSCH may be specifically related to the time unit number interval of the time unit included in the time unit set included in the second time unit sub-set.

Specifically, the time unit set may be divided into multiple time unit number intervals, and each time unit number interval has a mapping relationship with a scale factor of a transmission block size for transmitting PUSCH, and the proportion corresponding to different time unit number intervals The factors may be the same or different, which is not limited in this application. In this way, the terminal can determine the scale factor of the transmission block size for transmitting the PUSCH according to the time unit number interval to which the time unit included in the second time unit subset belongs.

Optionally, the interval of the number of time units may refer to an interval of the number of time units included. The interval of the number of time units may include the value of the number of one or more time units. The time unit may be a subframe, a time slot, a micro time slot, a symbol, or the like.

Optionally, the interval of the number of time units may refer to a type of the time unit, such as a subframe, a time slot, a micro time slot, a symbol, and the like.

For example, the mapping relationship between the number of time units and the scale factor is shown in Table 13, where S1, S2, S3, and S4 are integers, and t1, t2, t3, and t4 are arbitrary values less than or equal to 1, specifically t1, t2, t3, t4 can be set to 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/12, 2/3, 2/5, 3/4 , 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7, 5/7. For example, as shown in Table 14.

Table 13

Table 14

It should be noted that the division of the time unit set may be predefined, or may be configured by a network device, and the mapping relationship between the number of time unit intervals and the scale factor of the transmission block size used to transmit the PUSCH may be predefined. , Or may be configured by a network device, which is not limited in this application.

Optionally, the division of the interval of the number of time units used for transmitting the PUSCH may be equally divided, that is, the number of time units included in different intervals of the number of time units is the same. For example, as shown in Table 15, for an NCP including 14 OFDM symbols, it can be divided into 5 time unit number intervals, and each time unit number interval includes a value of 3 OFDM symbol numbers; for a value including 12 OFDM The symbol ECP can be divided into 4 time unit number intervals, and each time unit number interval includes the value of 3 OFDM symbol numbers.

It should be noted that if the time units included in the time unit set cannot be divided into equal proportions, the number of extra time units can be put into any one of the time unit interval.

Table 15

It should be noted that, in the case of NCP, the scale factor of TBS for transmitting PUSCH corresponding to the number of time units for transmitting PUSCH in the case of ECP may be the same or different, which is not limited in this application. . For example, Table 16 shows that the scale factors of TBS for PUSCH transmission corresponding to the interval of the number of time units for transmitting PUSCH in the case of NCP and ECP are the same. Among them, X1, X2, X3, X4, Y1, Y2, Y3 , Y4 is an integer, t1, t2, t3, t4 can be any value less than or equal to 1, for example, t1, t2, t3, t4 can be 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/12, 2/3, 2/5, 3/4, 3/5, 4/5, 3/8, 1/7, 2/7, 3 / Any one of 7, 4/7, and 5/7 is shown in Table 17 more specifically. Tables 18 and 19 show that the scale factors of TBS for PUSCH transmission corresponding to the interval of the number of time units in the NCP and ECP cases are different, that is, at least one of the following is satisfied: t1 ≠ t1 ', t2 ≠ t2', t3 ≠ t3 ', t4 ≠ t4', ..., where X1, X2, X3, X4, Y1, Y2, Y3, Y4 are integers, t1, t2, t3, and t4 are arbitrary values less than or equal to 1, t1 ' , T2 ', t3', t4 'are arbitrary values less than or equal to 1. For example, t1, t2, t3, t4, t1 ', t2', t3 ', t4' can take values of 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8 , 1/12, 2/3, 2/5, 3/4, 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7, 5/7, and more Specifically, as shown in Table 20 and Table 21.

Table 16

Table 17

Table 18

Table 19

Table 20

Table 21

Optionally, the correlation between the scale factor of the transmission block size used to transmit the PUSCH and the first time unit subset may be indirect correlation. For example, the scale factor of the transmission block size used to transmit the PUSCH is related to the time domain type of the PUSCH. The time domain type is related to the first time unit subset, so that the terminal can determine the time domain type of the PUSCH according to the first time unit set, and then determine the transmission block size for transmitting the PUSCH according to the time domain type of the PUSCH, thereby enabling the terminal to The PUSCH is transmitted with an appropriate transmission block size, which improves the transmission performance of the PUSCH.

It should be noted that the value of the scale factor of the transmission block size used for transmitting the PUSCH may be the same as that described in the foregoing embodiment. To avoid repetition, details are not described herein.

Optionally, the time domain type of the PUSCH may include three time domain types: a subframe-basd, a slot-based, or a subslot-based.

Specifically, the time slot type at the sub-slot level may also include two types: single-symbol sub-slot level and multi-symbol sub-slot level. The multi-symbol time-slot level may be 2 symbol sub-slot level, 3 symbol sub-slot level. Time slot, ..., n symbol sub-slots, etc., n may be a positive integer greater than or equal to two.

Optionally, there is a mapping relationship between a time domain type of the PUSCH and a scale factor of a transport block size for transmitting the PUSCH. It can be one or more rows as shown in Table 22 below.

Table 22

PUSCH的时域类型Time domain type of PUSCH	比例因子Scale Factor
时域类型ATime domain type A	tt1tt1
时域类型BTime domain type B	tt2tt2
时域类型CTime domain type C	tt3tt3
时域类型DTime domain type D	tt4tt4

Among them, the time domain type A, the time domain type B, the time domain type C, and the time domain type D can be at the sub-frame level, the slot level, the sub-slot level, the single symbol sub-slot level, or the multi-symbol sub-slot level. One or more of them, or other time domain types. The scale factors tt1, tt2, tt3, tt4 can be 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/12, 2/3, 2/5, 3 One or more of / 4, 3/5, 4/5, 3/8, 1/7, 2/7, 3/7, 4/7, 5/7, or other values.

Optionally, the mapping relationship between the time domain type of the PUSCH and the scale factor used to transmit the PUSCH transmission block size may be predefined, or may be configured by the network device to the terminal through signaling. Specifically, this application addresses this issue. Not limited.

Specifically, for example, the mapping relationship may be one or more of the following: subframe-basic PUSCH, the scale factor of TBS is 1; slot-based PUSCH, the scale factor of TBS is 1/2; It is 1/6; for single symbol subslot-based PUSCH, the scale factor of TBS is 1/12; for n symbol subslot-based PUSCH, the scale factor of TBS is (12-n) / 12.

Optionally, the correlation between the time domain type of the PUSCH and the first time unit subset may be determined by the size relationship between the time unit included in the first time unit subset and the preset time unit. For example, if the preset time unit is a time slot, and the time unit included in the first subset of time units used for transmitting SRS is a time slot, the time domain type of the PUSCH may be a slot-level time domain type; A time unit is a time slot, and the first subset of time units used to transmit SRS includes a time unit greater than one time slot. The time domain type of the PUSCH may be a sub-slot level time domain type.

It should be noted that if the first subset of time units used for transmitting SRS includes 0 OFDM symbols, the time domain type of the PUSCH may be a subframe-level time domain type.

Optionally, the time unit set may be divided into multiple time unit number intervals, and each time unit number interval corresponds to a type of time domain of the PUSCH, so that the terminal may set the time unit according to the time unit included in the first time unit. The number of time units in the interval determines the corresponding time domain type.

It should be noted that the division manner of dividing the time unit set into multiple time unit number intervals may be the same as the time unit number interval division used to transmit SRS or the PUSCH time unit interval division in the foregoing embodiment. The same, for example, Table 6 or Table 15, will not be repeated here to avoid repetition.

It should also be noted that the time unit number interval, the PUSCH time domain type, and the mapping relationship between the time unit number interval and the PUSCH time domain type may be preset or configured by a network device. This is not limited.

It should also be noted that, for NCP and ECP, the mapping relationship between the number of time unit intervals and the time domain type can be independently designed, or the mapping relationship between the time unit number interval and the time domain type can be set uniformly. This application does not perform this. limited.

Optionally, the type of information carried in the PUSCH may be related to the time domain type of the PUSCH.

Specifically, the PUSCH may be used to carry at least one of data and control information, that is, the PUSCH may be used to carry only control information, or only data, or data and control information. The type of information carried in the PUSCH may have a mapping relationship with the time domain type of the PUSCH, so that the terminal can determine the type of information carried in the PUSCH according to the time domain type of the PUSCH.

Optionally, if the time domain type of the PUSCH is slot-level or sub-slot-level, the information carried in the PUSCH is control information, thereby improving the transmission efficiency of the transmission control information.

Optionally, if the time domain type of the PUSCH is slot-level or sub-slot-level, and the frequency-domain resource bandwidth used to transmit the PUSCH is less than or equal to N RBs, the information carried in the PUSCH is control information, so The transmission efficiency of transmission control information is improved.

Specifically, the value of N may be an integer greater than 4, or N may be any integer greater than 4 and less than or equal to 8. The value of N may be preset or configured by a network device. The application does not limit this.

For example, the value of N is 8. That is, if the time domain type of the PUSCH is slot-level or sub-slot-level, and the frequency-domain resource bandwidth used to transmit the PUSCH is less than or equal to 8 RBs, the information carried in the PUSCH is control information.

It should be understood that the specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present application, but not to limit the scope of the embodiments of the present application.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application. The implementation process constitutes any limitation.

The signal transmission method according to the embodiment of the present application has been described in detail above, and the apparatus for signal transmission according to the embodiment of the present application will be described below.

FIG. 9 shows a schematic block diagram of a signal transmission apparatus 900 according to an embodiment of the present application.

It should be understood that the device 900 may correspond to the terminal in the embodiment shown in FIG. 4 and may have any function of the terminal in the method. The apparatus 900 includes a transceiver module 910.

The transceiver module 910 is configured to send at least one of a sounding reference signal SRS and a physical uplink shared channel PUSCH in a time unit set. A first time unit subset in the time unit set is used to transmit SRS, and the time unit set is A second time unit subset for transmitting PUSCH, the time unit set includes a plurality of consecutive time units, and any time unit in the first time unit subset is different from the time unit in the second time unit subset The first time unit subset includes at least two time units.

Optionally, the apparatus 900 further includes a processing module 920, configured to generate a sounding reference signal SRS and a physical uplink shared channel PUSCH.

Optionally, the processing module 920 is further configured to determine a first time unit subset and a second time unit subset in the time unit set.

Optionally, the second time unit sub-set includes at least one time unit sub-set in the time unit set other than the first time unit sub-set, the time unit set includes a plurality of time unit sub-sets, and the multiple The time unit subset includes the consecutive multiple time units.

Optionally, the second time unit subset includes at least one time unit in the time unit set other than the first time unit subset.

Optionally, the first time unit subset includes a time unit with an odd number or an even number of time units in the time unit set, and all time units in the first time unit set are sequentially numbered.

Optionally, the first time unit subset includes an odd-numbered time unit subset or an even-numbered time unit subset in the time unit set, and all time unit subsets in the first time unit set are in an order Numbering.

Optionally, the scale factor of the transmission block size for transmitting the PUSCH is related to the proportion of the number of time units included in the first time unit subset to all time units in the time unit set, and the The scale factor of the transmission block size is used to determine the transmission block size of the transmission PUSCH; or the scale factor of the transmission block size for the transmission of the PUSCH is the time unit number interval in which the number of time units included in the first time unit subset is located Corresponding scale factor, wherein at least one scale factor of a transmission block size for transmitting PUSCH has a mapping relationship with at least one time unit number interval for transmitting SRS, and the scale factor of the transmission block size for transmitting PUSCH is To determine the transport block size for transmitting the PUSCH.

Optionally, the scale factor of the transmission block size used to transmit the PUSCH is related to the proportion of the number of time units included in the second time unit subset to all time units in the time unit set, and the PUSCH is used to transmit the PUSCH. The scaling factor of the transmission block size is used to determine the transmission block size for transmitting the PUSCH; or the scaling factor for the transmission block size for transmitting the PUSCH is the number of time units in which the number of time units included in the second time unit subset is located A scale factor corresponding to the interval, wherein at least one scale factor of a transmission block size used to transmit the PUSCH and at least one time unit number interval used to transmit the PUSCH have a mapping relationship, and the scale factor of the transmission block size used to transmit the PUSCH Used to determine the transport block size for transmitting PUSCH.

Optionally, the scale factor of the transmission block size for transmitting the PUSCH is related to the time domain type of the PUSCH, and the time domain type of the PUSCH is related to the first time unit subset, and the transmission for transmitting the PUSCH is The block size scale factor is used to determine the transport block size for transmitting the PUSCH.

Optionally, the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is, where at least one time unit in the time unit set The number interval has a mapping relationship with at least one time domain type for transmitting PUSCH.

Optionally, the time domain type of the PUSCH includes a subframe level, a slot level, or a subslot level, and the time slot type of the subslot level includes a single-symbol subslot level and a multisymbol subslot level.

Optionally, the type of information carried in the PUSCH is related to the time domain type of the PUSCH, and the information carried in the PUSCH includes bearer control information or bearer control information and data.

Optionally, when the time domain type of the PUSCH is a slot level or a sub-slot level, the information carried in the PUSCH is control information; or the time domain type of the PUSCH is a slot level or a sub-slot When the bandwidth of the frequency domain resource for transmitting the PUSCH is less than or equal to N RBs, the information carried in the PUSCH is control information, where N> 4.

FIG. 10 illustrates a signal transmission apparatus 1000 provided in an embodiment of the present application. The apparatus 1000 may be a terminal described in FIG. 1 and FIG. 4. The device may use a hardware architecture as shown in FIG. 10. The device may include a processor 1010 and a transceiver 1020. Optionally, the device may further include a memory 1030. The processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through an internal connection path. The related functions implemented by the processing module 920 in FIG. 9 may be implemented by the processor 1010, and the related functions implemented by the transceiver module 910 may be implemented by the processor 1010 controlling the transceiver 1020.

The processor 1010 may include one or more processors, for example, one or more central processing units (CPUs). In the case where the processor is one CPU, the CPU may be a single-core CPU, or Can be a multi-core CPU.

The transceiver 1020 is used to send and receive data and / or signals, and to receive data and / or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and / or signals, and the receiver is used to receive data and / or signals.

The memory 1030 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (EPROM), and read-only memory. A compact disc (read-only memory, CD-ROM). The memory 1030 is used to store related instructions and data.

The memory 1030 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 1010.

Specifically, the processor 1010 is configured to control a transceiver to perform information transmission with a network device. For details, refer to the description in the method embodiment, and details are not described herein again.

It can be understood that FIG. 10 only shows a simplified design of a device for signal transmission. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application within.

In a possible design, the device 1000 may be a chip, for example, it may be a communication chip that can be used in a terminal to implement related functions of the processor 1010 in the terminal. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chip to realize related functions. The chip may optionally include one or more memories for storing program code, and when the code is executed, the processor implements a corresponding function.

FIG. 11 is a schematic diagram of a signal transmission apparatus 1100 according to an embodiment of the present application. The device 1100 includes a transceiver module 1110.

It should be understood that the apparatus 1100 may correspond to the network device in the embodiment shown in FIG. 4 and may have any function of the network device in the method. The device 1100 includes a transceiver module 1110.

The transceiver module 1110 receives at least one of a sounding reference signal SRS and a physical uplink shared channel PUSCH in a time unit set. A first time unit subset in the time unit set is used to transmit SRS. A second time unit subset is used to transmit PUSCH, the time unit set includes a plurality of consecutive time units, and any time unit in the first time unit subset is different from the time unit in the second time unit subset, The first time unit subset includes at least two time units.

Optionally, the apparatus 1100 further includes: a processing module 1120, configured to determine the first time unit subset and the second time unit subset in the time unit set.

Optionally, the second time unit sub-set includes at least one time unit sub-set in the time unit set other than the first time unit sub-set, the time unit set includes a plurality of time unit sub-sets, and the multiple The time unit subset includes the consecutive multiple time units; or the second time unit subset includes at least one time unit in the time unit set other than the first time unit subset.

Optionally, the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is, where at least one time unit in the time unit set The number interval has a mapping relationship with at least one time domain type used to transmit the PUSCH, and the scale factor for the transmission block size used to transmit the PUSCH is used to determine the transmission block size used to transmit the PUSCH.

FIG. 12 shows an apparatus 1200 for signal transmission according to an embodiment of the present application. The apparatus 1200 may be the network device described in FIG. 1 and FIG. 4. The device may adopt a hardware architecture as shown in FIG. 12. The device may include a processor 1210 and a transceiver 1220. Optionally, the device may further include a memory 1230. The processor 1210, the transceiver 1220, and the memory 1230 communicate with each other through an internal connection path. The related functions implemented by the processing module 1120 in FIG. 11 may be implemented by the processor 1210, and the related functions implemented by the transceiver module 1110 may be implemented by the processor 1210 controlling the transceiver 1220.

The processor 1210 may include one or more processors, for example, one or more central processing units (CPUs). In the case where the processor is one CPU, the CPU may be a single-core CPU, or Can be a multi-core CPU.

The transceiver 1220 is used to send and receive data and / or signals, and to receive data and / or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and / or signals, and the receiver is used to receive data and / or signals.

The memory 1230 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (EPROM), and read-only memory. A compact disc (compact disc-read-only memory, CD-ROM). The memory 1230 is used to store related instructions and data.

The memory 1230 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 1210.

Specifically, the processor 1210 is configured to control the transceiver to perform information transmission with the terminal. For details, refer to the description in the method embodiment, and details are not described herein again.

It can be understood that FIG. 12 only shows a simplified design of a device for signal transmission. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application within.

In a possible design, the apparatus 1200 may be a chip, for example, it may be a communication chip that can be used in a network device, and is used to implement related functions of the processor 1210 in the network device. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chip to realize related functions. The chip may optionally include one or more memories for storing program code, and when the code is executed, the processor implements a corresponding function.

An embodiment of the present application further provides a device, which may be a terminal or a circuit. The apparatus may be configured to perform an action performed by a terminal in the foregoing method embodiment.

Optionally, when the device in this embodiment is a terminal, FIG. 15 shows a simplified schematic structural diagram of a terminal. It is easy to understand and easy to illustrate. In FIG. 15, the terminal uses a mobile phone as an example. As shown in FIG. 15, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input / output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, and processing data of the software programs. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input / output devices, such as a touch screen, a display screen, and a keyboard, are mainly used to receive data input by the user and output data to the user. It should be noted that some types of terminals may not have input / output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. After the radio frequency circuit processes the baseband signal, the radio frequency signal is sent out through the antenna in the form of electromagnetic waves. When data is sent to the terminal, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, only one memory and processor are shown in FIG. 15. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, an antenna and a radio frequency circuit having a transmitting and receiving function may be regarded as a transmitting and receiving unit of a terminal, and a processor having a processing function may be regarded as a processing unit of the terminal. As shown in FIG. 13, the terminal includes a transceiver unit 1310 and a processing unit 1320. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like. The processing unit may also be called a processor, a processing single board, a processing module, a processing device, and the like. Optionally, the device for implementing the receiving function in the transceiver unit 1310 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1310 may be regarded as a transmitting unit, that is, the transceiver unit 1310 includes a receiving unit and a transmitting unit. The transceiver unit may also be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be called a receiver, a receiver, or a receiving circuit. The transmitting unit may also be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiver unit 1310 is configured to perform the sending and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit 1320 is configured to perform operations other than the transceiver operation on the terminal in the foregoing method embodiment.

For example, in an implementation manner, the transceiver unit 1310 is configured to perform the sending operation on the terminal side in step 402 in FIG. 4, and / or the transceiver unit 1310 is also configured to perform other transceiver steps on the terminal side in the embodiments of the present application. The processing unit 1320 is configured to perform step 401 in FIG. 2 and / or the processing unit 1320 is further configured to perform other processing steps on the terminal side in the embodiment of the present application.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit or a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

Optionally, when the device is a terminal, reference may also be made to the device shown in FIG. 14. As an example, the device may perform functions similar to the processor 1010 in FIG. 10. In FIG. 14, the device includes a processor 1401, a transmitting data processor 1403, and a receiving data processor 1405. The processing module 920 in the above embodiment may be the processor 1401 in FIG. 14 and perform corresponding functions. The transceiver module 910 in the foregoing embodiment may be the sending data processor 1403 and the receiving data processor 1405 in FIG. 14. Although a channel encoder and a channel decoder are shown in FIG. 14, it can be understood that these modules do not constitute a restrictive description of this embodiment, but are only schematic.

FIG. 15 shows another form of this embodiment. The processing device 1500 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment may serve as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1503 and an interface 1504. The processor 1503 performs the functions of the processing module 920, and the interface 1504 performs the functions of the transceiver module 910. As another modification, the modulation subsystem includes a memory 1506, a processor 1503, and a program stored on the memory and executable on the processor. When the processor executes the program, one of the first to fifth embodiments is implemented. method. It should be noted that the memory 1506 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1500, as long as the memory 1506 can be connected to the memory 1506. The processor 1503 is sufficient.

Optionally, if the device 1100 is a network device, the network device may be the device shown in FIG. 16, and the device 1600 includes one or more radio frequency units, such as a remote radio unit (RRU) 1601 and One or more baseband units (BBUs) (also referred to as digital units, DUs) 1602. The RRU 1601 may be referred to as a transceiver module, corresponding to the transceiver module 1110 in FIG. 11. Optionally, the transceiver module may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1611 And RF unit 1612. The RRU 1601 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending instruction information to a terminal. The 1601 part of the BBU is mainly used for baseband processing and controlling base stations. The RRU 1601 and the BBU 1602 may be physically located together or physically separated, that is, a distributed base station.

The BBU 1602 is a control center of the base station, and may also be referred to as a processing module, which may correspond to the processing module 1120 in FIG. 11, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU (processing module) may be used to control the base station to execute the operation procedure about the network device in the foregoing method embodiment, for example, to generate the foregoing instruction information and the like.

In one example, the BBU 1602 may be composed of one or more boards, and multiple boards may jointly support a single access system wireless access network (such as an LTE network), or may separately support different access systems. Wireless access network (such as LTE network, 5G network or other networks). The BBU 1602 further includes a memory 1621 and a processor 1622. The memory 1621 is used to store necessary instructions and data. The processor 1622 is configured to control the base station to perform necessary actions, for example, it is used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment. The memory 1621 and the processor 1622 may serve one or more single boards. That is, the memory and processor can be set separately on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.

As another form of this embodiment, a computer-readable storage medium is provided, in which instructions are stored, and the instructions in the foregoing method embodiments are executed when the instructions are executed.

As another form of this embodiment, a computer program product including an instruction is provided, and the method in the foregoing method embodiment is executed when the instruction is executed.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) and so on.

In the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship between related objects, and indicates that there can be three kinds of relationships, for example, A and / or B can be expressed as follows: A exists alone, A and B exist simultaneously, and B alone exists, where A, B can be singular or plural. The character "/" generally indicates that the related objects are an "or" relationship. "At least one or more of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one (a) of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

It should be understood that “an embodiment” or “an embodiment” mentioned throughout the specification means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of "in one embodiment" or "in an embodiment" appearing throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present invention. The implementation process constitutes any limitation.

The terms “component”, “module”, “system” and the like used in this specification are used to indicate computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. By way of illustration, both an application running on a computing device and a computing device can be components. One or more components can reside within a process and / or thread of execution, and a component can be localized on one computer and / or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (e.g., data from two components that interact with another component between a local system, a distributed system, and / or a network, such as the Internet that interacts with other systems through signals) Communicate via local and / or remote processes.

It should also be understood that the first, second, and various numbers referred to herein are only for the convenience of description and are not used to limit the scope of the embodiments of the present application.

It should be understood that the term “and / or” in this document is only an association relationship describing an associated object, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, and A and B exist simultaneously. There are three cases of B alone. Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

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

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, which may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

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

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for signal transmission, comprising:

Sending at least one of a sounding reference signal SRS and a physical uplink shared channel PUSCH in a time unit set, a first time unit subset in the time unit set used for transmitting SRS, and a second time in the time unit set The unit sub-set is used for transmitting PUSCH, and the time unit set includes a plurality of consecutive time units, and any one time unit in the first time unit sub-set is different from the time unit in the second time unit sub-set, The first time unit subset includes at least two time units.
The method according to claim 1, wherein the second time unit subset includes at least one time unit subset in the time unit set other than the first time unit subset, and the time The unit set includes a plurality of time unit sub-sets, the plurality of time unit sub-sets including the consecutive multiple time units; or

The second time unit subset includes at least one time unit in the time unit set other than the first time unit subset.
The method according to claim 2, wherein the first time unit subset includes an odd-numbered time unit or an even-numbered time unit in the time unit set, and the first time unit set includes: All time units are numbered sequentially.
The method according to claim 2, wherein the first time unit subset includes an odd-numbered time unit subset or an even-numbered time unit subset in the time unit set, and the first All time unit subsets in a time unit set are sequentially numbered.
The method according to any one of claims 1 to 4, wherein a scale factor of a transmission block size for transmitting a PUSCH and a number of time units included in the first time unit subset set account for the The proportions of all time units in the set of time units are related, and the scale factor for the transmission block size for transmitting the PUSCH is used to determine the transmission block size for transmitting the PUSCH; or

The scale factor of the transmission block size used for transmitting the PUSCH is a scale factor corresponding to a time unit number interval in which the number of time units included in the first time unit subset is, where the transmission block size used for transmitting the PUSCH is There is a mapping relationship between at least one scale factor of at least one time unit number interval for transmitting SRS, and the scale factor of transmission block size for transmitting PUSCH is used to determine a transmission block size for transmitting PUSCH.
The method according to any one of claims 1 to 4, wherein the scale factor of the transmission block size for transmitting the PUSCH and the number of time units included in the second time unit subset set account for The proportions of all time units in the set of time units are related, and the scale factor of the transmission block size for transmitting the PUSCH is used to determine the transmission block size for transmitting the PUSCH; or

The scale factor of the transmission block size used for transmitting the PUSCH is a scale factor corresponding to the interval of the number of time units in which the number of time units included in the second time unit subset is, where the transmission block size used for transmitting the PUSCH is There is a mapping relationship between at least one scaling factor of at least one time unit number interval for transmitting the PUSCH, and the scaling factor for transmitting block size of the PUSCH is used to determine the transmission block size of the transmitting PUSCH.
The method according to any one of claims 1 to 4, wherein a scale factor of a transmission block size for transmitting the PUSCH is related to a time domain type of the PUSCH, and the time of the PUSCH is The domain type is related to the first subset of time units, and the scale factor of the transport block size for transmitting the PUSCH is used to determine the transport block size for transmitting the PUSCH.
The method according to claim 7, wherein the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is located, wherein, At least one time unit number interval in the time unit set has a mapping relationship with at least one time domain type for transmitting a PUSCH.
The method according to claim 7 or 8, wherein the time domain type of the PUSCH includes a subframe level, a slot level, or a subslot level, and the time slot type of the subslot level includes a single-symbol sub Slot level and multi-symbol sub-slot level.
The method according to claim 9, wherein the type of information carried in the PUSCH is related to the time domain type of the PUSCH, and the information carried in the PUSCH includes bearer control information or bearer control information and data.
The method according to claim 10, wherein, when the time domain type of the PUSCH is a slot level or a sub-slot level, the information carried in the PUSCH is control information; or

When the time domain type of the PUSCH is a slot level or a subslot level and the frequency domain resource bandwidth for transmitting the PUSCH is less than or equal to N resource block RBs, the information carried in the PUSCH is control Information, where N> 4.
A method for signal transmission, comprising:

Receive at least one of a sounding reference signal SRS and a physical uplink shared channel PUSCH in a time unit set, a first time unit subset in the time unit set being used to transmit an SRS, and a second time in the time unit set The unit sub-set is used for transmitting PUSCH, and the time unit set includes a plurality of consecutive time units, and any one time unit in the first time unit sub-set is different from the time unit in the second time unit sub-set, The first time unit subset includes at least two time units.
The method according to claim 12, wherein the second time unit subset includes at least one time unit subset in the time unit set other than the first time unit subset, and the time The unit set includes a plurality of time unit sub-sets, the plurality of time unit sub-sets including the consecutive multiple time units; or

The second time unit subset includes at least one time unit in the time unit set other than the first time unit subset.
The method according to claim 13, wherein the first time unit subset includes an odd-numbered time unit or an even-numbered time unit in the time unit set, and the first time unit set includes: All time units are numbered sequentially.
The method according to claim 13, wherein the first time unit subset includes an odd-numbered time unit subset or an even-numbered time unit subset in the time unit set, and the first All time unit subsets in a time unit set are sequentially numbered.
The method according to any one of claims 12 to 15, wherein a scaling factor of a transmission block size for transmitting a PUSCH and a number of time units included in the first time unit subset set account for the The proportions of all time units in the set of time units are related, and the scale factor for the transmission block size for transmitting the PUSCH is used to determine the transmission block size for transmitting the PUSCH; or

The scale factor of the transmission block size used for transmitting the PUSCH is a scale factor corresponding to a time unit number interval in which the number of time units included in the first time unit subset is, where the transmission block size used for transmitting the PUSCH is There is a mapping relationship between at least one scale factor of at least one time unit number interval for transmitting SRS, and the scale factor of transmission block size for transmitting PUSCH is used to determine a transmission block size for transmitting PUSCH.
The method according to any one of claims 12 to 15, wherein the scale factor of the transmission block size for transmitting the PUSCH and the number of time units included in the second time unit subset set account for The proportions of all time units in the set of time units are related, and the scale factor of the transmission block size for transmitting the PUSCH is used to determine the transmission block size for transmitting the PUSCH; or

The scale factor of the transmission block size used for transmitting the PUSCH is a scale factor corresponding to the interval of the number of time units in which the number of time units included in the second time unit subset is, where the transmission block size used for transmitting the PUSCH is There is a mapping relationship between at least one scaling factor of at least one time unit number interval for transmitting the PUSCH, and the scaling factor for transmitting block size of the PUSCH is used to determine the transmission block size of the transmitting PUSCH.
The method according to any one of claims 12 to 15, wherein a scale factor of a transmission block size for transmitting the PUSCH is related to a time domain type of the PUSCH, and the time of the PUSCH is The domain type is related to the first subset of time units, and the scale factor of the transport block size for transmitting the PUSCH is used to determine the transport block size for transmitting the PUSCH.
The method according to claim 18, wherein the time domain type of the PUSCH is a time domain type corresponding to a time unit number interval in which the number of time units included in the first time unit subset is located, wherein, At least one time unit number interval in the set of time units has a mapping relationship with at least one time domain type used to transmit PUSCH, and the scale factor of the transmission block size used to transmit PUSCH is used to determine the transmission block used to transmit PUSCH size.
The method according to claim 18 or 19, wherein the time domain type of the PUSCH includes a subframe level, a slot level, or a subslot level, and the time slot type of the subslot level includes a single-symbol sub Slot level and multi-symbol sub-slot level.
The method according to claim 20, wherein the type of information carried in the PUSCH is related to the time domain type of the PUSCH, and the information carried in the PUSCH includes bearer control information or bearer control information and data.
The method according to claim 21, wherein, when the time domain type of the PUSCH is a slot level or a sub-slot level, the information carried in the PUSCH is control information; or

When the time domain type of the PUSCH is a slot level or a subslot level and the frequency domain resource bandwidth for transmitting the PUSCH is less than or equal to N resource block RBs, the information carried in the PUSCH is control Information, where N> 4.
A device for signal transmission, comprising a unit for performing the method according to any one of claims 1 to 22.
A device for signal transmission, characterized in that the device includes a processor and a memory; the processor is configured to execute instructions in the memory to implement the method according to any one of claims 1 to 22.
A computer-readable storage medium, comprising instructions that, when run on a computer, causes the computer to perform the method according to any one of claims 1 to 22.
A computer program product, which, when run on a computer, causes the computer to perform the method according to any one of claims 1 to 22.
A communication chip, wherein the communication chip stores instructions, and when the communication chip runs on a communication device, causes the communication chip to execute the method according to any one of claims 1 to 22.