CN110557842B

CN110557842B - Signal sending method, device and system

Info

Publication number: CN110557842B
Application number: CN201810557442.4A
Authority: CN
Inventors: 谢信乾; 郭志恒; 费永强; 毕文平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-06-01
Filing date: 2018-06-01
Publication date: 2021-12-17
Anticipated expiration: 2038-06-01
Also published as: WO2019228535A1; CN110557842A

Abstract

The embodiment of the invention provides a signal sending method, a signal sending device and a signal sending system, relates to the technical field of communication, and can obviously improve the success rate of terminal equipment accessing a network. The method comprises the following steps: the terminal device determines uplink configuration information, and sends an uplink signal to the network device according to the uplink configuration information, wherein the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform and a repetition number, and the uplink carrier is one of at least two uplink carriers.

Description

Signal sending method, device and system

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a signal sending method, a signal sending device and a signal sending system.

Background

In the process of accessing the terminal device to the network, the terminal device may send an uplink signal to the network device according to the uplink configuration information, so that the terminal device is smoothly accessed to the network.

At present, for a 5G new radio interface (NR) system in question, uplink carriers may be deployed in uplink frequency bands of different frequencies, and a terminal device selects a suitable uplink carrier for random access, that is, the terminal device selects a certain uplink carrier to send an uplink signal.

However, in the NR system, how to further improve the success rate of the terminal device accessing the network, an effective solution has not been proposed yet.

Disclosure of Invention

The application provides a signal sending method, a signal sending device and a signal sending system, which can obviously improve the success rate of terminal equipment accessing a network.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a signal transmission method, including: the terminal equipment determines uplink configuration information; and the terminal device sends an uplink signal to the network device according to the uplink configuration information, wherein the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform and a repetition number, and the uplink carrier is one of at least two uplink carriers.

According to the signal sending method provided by the application, the terminal equipment can determine the uplink configuration information comprising the uplink carrier and the repetition times, or comprising the signal waveform and the repetition times, or comprising the uplink carrier, the signal waveform and the repetition times, and sends the uplink signal to the network equipment according to the uplink configuration information.

In a first optional implementation manner of the first aspect, the uplink configuration information includes an uplink carrier and a repetition number; the method for determining the uplink configuration information by the terminal device may include: the terminal device determines an uplink carrier and a repetition number according to a measured Reference Signal Received Power (RSRP) and at least one RSRP threshold, where the repetition number is one of at least two repetition numbers, the at least one RSRP threshold is received by the terminal device from the network device, and there is a corresponding relationship between the at least one RSRP threshold and the uplink carrier and the repetition number.

In this application, the correspondence between the at least one RSRP threshold and the uplink carrier and the number of repetitions refers to a correspondence between an RSRP interval formed by the at least one RSRP threshold and the uplink carrier and the number of repetitions. Specifically, the terminal device may determine an RSRP interval to which the measured RSRP belongs according to the measured RSRP and at least one RSRP threshold, and then determine the uplink carrier and the repetition number according to a corresponding relationship between the RSRP interval to which the measured RSRP belongs, the RSRP interval, and the uplink configuration information.

In a second optional implementation manner of the first aspect, the uplink configuration information includes an uplink carrier and a repetition number; the method for determining the uplink configuration information by the terminal device may include: the terminal equipment determines a first uplink carrier for sending uplink signals according to the measured RSRP and at least one first RSRP threshold; and the terminal device determines the repetition times of sending the uplink signal according to the measured RSRP and at least one second RSRP threshold corresponding to the first uplink carrier, wherein the first uplink carrier is one uplink carrier of at least two uplink carriers, the at least one first RSRP threshold is received by the terminal device from the network device, the repetition times is one of the at least two repetition times, and the at least one second RSRP threshold is received by the terminal device from the network device.

In the present application, the at least one first RSRP threshold is a cell common parameter, and values of the first RSRP threshold are the same for all terminal devices in the same cell; the second RSRP threshold is a dedicated parameter of the uplink carrier, and values of the corresponding second RSRP thresholds may be different for different uplink carriers.

Optionally, when a second RSRP threshold corresponding to the first uplink carrier does not exist in the at least one second RSRP threshold, the terminal device determines the number of repetitions of sending the random access preamble signal to be 1, or determines the number of repetitions of sending the random access preamble signal to be a preset number of repetitions.

In a third optional implementation manner of the first aspect, the method for determining the uplink configuration information by the terminal device may include: the terminal equipment receives indication information from the network equipment; and the terminal equipment determines uplink configuration information according to the indication information, wherein the indication information indicates the uplink carrier and the repetition times, or the indication information indicates the signal waveform and the repetition times, or the indication information indicates the uplink carrier, the signal waveform and the repetition times.

In the present application, the terminal device pre-stores a corresponding relationship between the indication information and the uplink configuration information, that is, a corresponding relationship between the indication information and the uplink carrier and the number of repetitions, and after receiving the indication information, the terminal device may determine the uplink carrier and the number of repetitions according to the indication information.

In a fourth optional implementation manner of the first aspect, the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the uplink carrier and the repetition number; the method for determining the uplink configuration information by the terminal device may include: the terminal equipment determines uplink carriers and repetition times according to the indication information; under the condition that the repetition times are less than or equal to the preset times, the terminal equipment determines the signal waveform as a first signal waveform; and under the condition that the repetition times are more than the preset times, the terminal equipment determines the signal waveform as a second signal waveform.

In the application, the terminal equipment can select a proper signal waveform to send the uplink signal according to the determined repetition times, and the success rate of the terminal equipment accessing the network can be provided to a certain extent.

In a fifth optional implementation manner of the first aspect, the signal sending method provided by the present application may further include: the terminal equipment sends a random access preamble signal to the network equipment on an uplink carrier by adopting a first repetition number; under the condition that the random access of the terminal equipment fails, when the uplink carrier is the first type of uplink carrier, the terminal equipment continuously sends a random access preamble signal to the network equipment by adopting a second repetition number on the uplink carrier, wherein the second repetition number is greater than the first repetition number.

In the application, when the terminal device sends the random access preamble signal according to the first repetition number in the uplink configuration information, and the number of times that the terminal device attempts to send the random access preamble signal reaches the first repetition number, the terminal device still does not successfully access the network, and at this time, the terminal device continues to send the random access preamble signal according to the second repetition number greater than the first repetition number on the uplink carrier, so that the problem that the terminal device cannot access the network due to inaccurate measured RSRP determined by the terminal device is avoided, and thus the first repetition number determined by the terminal device cannot meet actual requirements.

In a second aspect, the present application provides a signal transmission method, including: the network equipment sends indication information to the terminal equipment; and the network equipment receives an uplink signal from the terminal equipment, wherein the uplink signal is sent by the terminal equipment according to the uplink configuration information. The indication information indicates uplink configuration information, the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform and a signal waveform, and the uplink carrier is one of at least two uplink carriers.

In a third aspect, the present application provides a signal transmitting method, including: the method comprises the steps that network equipment sends at least one RSRP threshold to terminal equipment, wherein the at least one RSRP threshold is used for determining uplink configuration information, the uplink configuration information comprises uplink carriers and repetition times, and the uplink carriers are one of at least two uplink carriers; and the network equipment receives an uplink signal from the terminal equipment, wherein the uplink signal is sent by the terminal equipment according to the uplink configuration information.

For the descriptions of the technical effects of the second aspect and the third aspect, refer to the descriptions of the technical effects of the first aspect, and are not repeated herein.

In a fourth aspect, the present application provides a terminal device, including a determining module and a sending module. The determining module is configured to determine uplink configuration information, where the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, where the uplink carrier is one of at least two uplink carriers; and the sending module is used for sending the uplink signal to the network equipment according to the uplink configuration information.

In a first optional implementation manner of the fourth aspect, when the uplink configuration information includes an uplink carrier and a repetition number, the determining module is specifically configured to determine the uplink carrier and the repetition number according to a measured RSRP and at least one RSRP threshold, where the repetition number is one of at least two repetition numbers, the at least one RSRP threshold is received by the terminal device from the network device, and a corresponding relationship exists between the at least one RSRP threshold and the uplink carrier and the repetition number.

In a second optional implementation manner of the fourth aspect, when the uplink configuration information includes an uplink carrier and a repetition number, the determining module is specifically configured to determine, according to a measured RSRP and at least one first RSRP threshold, a first uplink carrier for sending an uplink signal; the first uplink carrier is one of at least two uplink carriers, and at least one first RSRP threshold value is received by the terminal equipment from the network equipment; and determining the repetition times of sending the uplink signal according to the measured RSRP and at least one second RSRP threshold corresponding to the first uplink carrier, wherein the repetition times is one of at least two repetition times, and the at least one second RSRP threshold is received by the terminal device from the network device.

In a third optional implementation manner of the fourth aspect, the terminal device provided by the present application further includes a receiving module; the receiving module is configured to receive indication information from a network device, where the indication information indicates an uplink carrier and a repetition number, or the indication information indicates a signal waveform and a repetition number, or the indication information indicates an uplink carrier, a signal waveform, and a repetition number; the determining module is specifically configured to determine the uplink configuration information according to the indication information.

In a fourth optional implementation manner of the fourth aspect, the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the uplink carrier and the repetition number; the determining module is specifically configured to determine an uplink carrier and a repetition number according to the indication information; and under the condition that the repetition times are less than or equal to the preset times, the terminal equipment determines the signal waveform as a first signal waveform; and under the condition that the repetition times are more than the preset times, the terminal equipment determines the signal waveform as a second signal waveform.

In a fifth optional implementation manner of the fourth aspect, the sending module is further configured to send a random access preamble signal to the network device on the uplink carrier by using the first repetition number; and under the condition that the random access of the terminal equipment fails, when the uplink carrier is the first type of uplink carrier, continuously adopting a second repetition number to send a random access preamble signal to the network equipment on the uplink carrier, wherein the second repetition number is greater than the first repetition number.

In the first and fourth aspects, when the uplink signal is a random access preamble signal, the indication information is carried in downlink control information; and when the uplink signal is the uplink signal scheduled by the random access response, the indication information is carried in the random access response.

In a fifth aspect, the present application provides a network device, which includes a sending module and a receiving module. The sending module is configured to send indication information to a terminal device, where the indication information indicates uplink configuration information, the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform, and a signal waveform, where the uplink carrier is one of at least two uplink carriers; and the receiving module is used for receiving an uplink signal from the terminal equipment, wherein the uplink signal is sent by the terminal equipment according to the uplink configuration information.

In the second and fifth aspects, when the uplink signal is a random access preamble signal, the indication information is carried in downlink control information; and when the uplink signal is an uplink signal scheduled by the random access response, the indication information is carried in the random access response.

In a sixth aspect, the present application provides a network device, which includes a sending module and a receiving module. The terminal equipment comprises a sending module and a receiving module, wherein the sending module is used for sending at least one RSRP threshold to the terminal equipment, the at least one RSRP threshold is used for determining uplink configuration information, the uplink configuration information comprises an uplink carrier and repetition times, and the uplink carrier is one of at least two uplink carriers; and the receiving module is used for receiving an uplink signal from the terminal equipment, wherein the uplink signal is sent by the terminal equipment according to the uplink configuration information.

In the third and sixth aspects, the at least one RSRP threshold includes at least one first RSRP threshold and at least one second RSRP threshold, where the at least one first RSRP threshold is used to determine an uplink carrier, and the at least one second RSRP threshold corresponding to the uplink carrier is used to determine a repetition number, where the repetition number is one of at least two repetition numbers.

In a seventh aspect, the present application provides a terminal device, including a processor and a memory coupled to the processor; the memory is configured to store computer instructions, and when the terminal device runs, the processor executes the computer instructions stored in the memory, so as to enable the terminal device to execute the signal transmission method according to any one of the first aspect and various optional implementations thereof.

In an eighth aspect, the present application provides a computer-readable storage medium comprising computer instructions which, when executed by a processor, perform the signal transmission method according to the first aspect and any one of its various alternative implementations.

In a ninth aspect, the present application provides a computer program product comprising instructions which, when executed by a processor, perform the signal transmission method according to the first aspect and any one of its various alternative implementations.

In a tenth aspect, the present application provides a network device comprising a processor and a memory coupled to the processor; the memory is used for storing computer instructions, and when the network device runs, the processor executes the computer instructions stored in the memory, so that the network device executes the signal transmission method according to the second aspect.

In an eleventh aspect, the present application provides a computer-readable storage medium comprising computer instructions which, when executed by a processor, perform the signal transmission method according to the second aspect.

In a twelfth aspect, the present application provides a computer program product containing instructions for executing the signal transmission method according to the second aspect when the instructions are executed by a processor.

In a thirteenth aspect, the present application provides a network device comprising a processor and a memory coupled to the processor; the memory is used for storing computer instructions, and when the network device runs, the processor executes the computer instructions stored in the memory to make the network device execute the signal transmission method according to the third aspect.

In a fourteenth aspect, the present application provides a computer-readable storage medium comprising computer instructions which, when invoked by a processor, perform the signaling method of the third aspect.

In a fifteenth aspect, the present application provides a computer program product comprising instructions for executing the signal transmission method according to the third aspect when the instructions are executed by a processor.

In a sixteenth aspect, the present application provides a communication system comprising the terminal device of the fourth aspect or the seventh aspect and the network device of the fifth aspect or the tenth aspect; alternatively, the communication system comprises the terminal device of the fourth aspect or the seventh aspect and the network device of the sixth aspect or the thirteenth aspect.

Drawings

Fig. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;

fig. 2 is a hardware schematic diagram of a network device according to an embodiment of the present invention;

fig. 3 is a hardware schematic diagram of a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a first signal transmission method according to an embodiment of the present invention;

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

fig. 6 is a schematic diagram of a signal transmission method according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an RSRP interval provided in an embodiment of the present invention;

fig. 8 is a schematic diagram of a signal transmission method according to a fourth embodiment of the present invention;

fig. 9 is a schematic diagram of a signal transmission method according to an embodiment of the present invention;

fig. 10 is a schematic diagram six of a signal transmission method according to an embodiment of the present invention;

fig. 11 is a schematic diagram seven of a signal transmission method according to an embodiment of the present invention;

fig. 12 is a first schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 14 is a first schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first repetition number and the second repetition number, etc. are for distinguishing different positions, and are not for describing a specific order of the repetition numbers.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of processing units refers to two or more processing units; the plurality of systems refers to two or more systems.

Some concepts involved in embodiments of the present invention are explained first below.

Additional uplink (SUL) carriers: are uplink carriers in the NR system that are deployed on other uplink frequency bands (uplink frequency bands other than the uplink frequency band of the NR system). With the development of wireless communication systems, a 5G NR system may be deployed in a frequency band below 6GHz, for example, when a NR system is deployed in a frequency band of 3.5GHz, considering that uplink coverage may not match downlink coverage, resulting in limited uplink rate, SUL uplink carriers may be deployed in other uplink frequency bands. Illustratively, the frequency band of the NR system is 3.5GHz, the frequency band of the LTE system is 1.8GHz, the NR system may deploy an uplink carrier on the frequency band of 3.5GHz, and may also deploy an SUL uplink carrier on the frequency band of the LTE system (i.e., 1.8GHz), so that the uplink frequency band of the LTE system may be used for both the LTE system and the NR system, that is, the LTE system and the NR system share one uplink frequency band. Optionally, the SUL carrier may also be deployed on other dedicated uplink frequency bands, and the dedicated uplink frequency band may be a frequency band that is not shared with the uplink frequency band of the LTE system or the uplink frequency band of another system.

And (3) repeatedly sending: the method is a coverage enhancement technology, when signals are sent between communication devices, a sending end can repeatedly send the signals to a receiving end for many times, so that the receiving end can accumulate energy or power of the received signals, and the accuracy of receiving the signals by the receiving end can be improved. For example, in the random access process of the terminal device, the terminal device may send the random access preamble signal to the network device according to the repetition times, so that the network device may accumulate the energy or power of the random access preamble signal sent multiple times, and the success rate of the random access of the terminal device may be improved.

Signal waveform: refers to a waveform of a transmitted signal, and a signal waveform in the NR system includes an Orthogonal Frequency Division Multiplexing (OFDM) waveform and a discrete fourier transform spread-spectrum (DFT-S-OFDM) waveform.

Based on the problems existing in the foregoing background art, embodiments of the present invention provide a signal sending method, apparatus, and system, where a terminal device may determine uplink configuration information including at least two of an uplink carrier, a repetition number, and a signal waveform, and send an uplink signal to a network device according to the uplink configuration information, so that a success rate of accessing the terminal device to a network can be significantly improved.

The signal transmission method and apparatus provided by the embodiment of the present invention may be applied to a wireless communication system, for example, a system adopting a fifth generation mobile communication technology (may be referred to as a 5G system, or may also be referred to as an NR system). As shown in fig. 1, which is a schematic structural diagram of an NR system according to an embodiment of the present invention, the NR system includes a network device 10 and a terminal device 11. In the process of accessing the network by the terminal device 11, the terminal device 11 may send a random access preamble signal to the network device 10, then the network device 10 sends a random access response to the terminal device 11, and then the terminal device 11 sends an uplink signal scheduled by the random access response to the network device 10, and the terminal device 11 may send the random access preamble signal or the signal scheduled by the random response to the network device 10 according to uplink configuration information (e.g., uplink carrier, repetition number, etc.), where the uplink configuration information may be determined by the terminal device 11, or the network device 10 sends indication information to indicate the uplink configuration information.

The base station, an evolved node base station (eNB), a next generation base station (gNB) in a 5G system, a new radio base station (new radio eNB), a macro base station, a micro base station, a high frequency base station, or a Transmission and Reception Point (TRP), which are generally used by the network device provided in the embodiment of the present invention. For example, the embodiment of the present invention takes a commonly used base station as an example to introduce a hardware structure of a network device. The following describes each component of the base station provided in the embodiment of the present invention with reference to fig. 2. As shown in fig. 2, a base station provided in an embodiment of the present invention may include:

parts

20 and 21. The 20 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the 21 part is mainly used for baseband processing, base station control, and the like. Portion 20 may be generally referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc. Part 21 is typically the control center of the base station and may be generally referred to as a processing unit.

The transceiver unit of part 20, which may also be referred to as a transceiver, or a transceiver, etc., includes an antenna and a radio frequency unit, or only includes a radio frequency unit or a portion thereof, where the radio frequency unit is mainly used for radio frequency processing. Optionally, a device used for implementing the receiving function in the part 20 may be regarded as a receiving unit, and a device used for implementing the sending function may be regarded as a sending unit, that is, the part 20 includes a receiving unit and a sending unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like, and a transmitting unit may be referred to as a transmitter, a transmitting circuit, or the like.

Portion 21 may comprise one or more boards or chips, each of which may comprise one or more processors and one or more memories, the processors being configured to read and execute programs in the memories to implement baseband processing functions and control of the base station. If a plurality of single boards exist, the single boards can be interconnected to increase the processing capacity. As an alternative implementation, multiple boards may share one or more processors, or multiple boards may share one or more memories. The memory and the processor may be integrated together or may be provided separately. In some embodiments, the 20 and 21 sections may be integrated or may be separate. In addition, all functions in the part 21 may be integrated in one chip, or part of the functions may be integrated in one chip to implement another part of the functions may be integrated in one or more other chips to implement, which is not limited in this embodiment of the present invention.

The terminal device provided by the embodiment of the invention can be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), an intelligent automobile, a sensing device, an internet of things (IOT) device, a Customer Premises Equipment (CPE) and the like.

Illustratively, in the embodiment of the present invention, a terminal device is taken as a mobile phone as an example, and a hardware structure of the terminal device is introduced. The following describes each component of the mobile phone provided by the embodiment of the present invention with reference to fig. 3. As shown in fig. 3, a mobile phone provided in an embodiment of the present invention includes: a processor 30, a Radio Frequency (RF) circuit 31, a power supply 32, a memory 33, an input unit 34, a display unit 35, and an audio circuit 36. Those skilled in the art will appreciate that the configuration of the handset shown in fig. 3 does not constitute a limitation of the handset, and may include more or fewer components than those shown in fig. 3, or may combine some of the components shown in fig. 3, or may be arranged differently than those shown in fig. 3.

The processor 30 is the control center of the handset and connects the various parts of the entire handset using various interfaces and lines. The overall monitoring of the handset is performed by executing or executing software programs and/or modules stored in the memory 33 and calling data stored in the memory 33 to perform various functions of the handset and process the data. Alternatively, processor 30 may include one or more processing units. Optionally, the processor 30 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application program, and the like; the modem processor handles primarily wireless communications. It will be appreciated that the modem processor described above may also be a separate processor external to processor 30.

The RF circuit 31 may be used to receive and transmit signals during the transmission and reception of information or during a call. For example, the downlink information of the base station is received and then processed by the processor 30; in addition, the uplink data is transmitted to the base station. Typically, the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), and a duplexer. In addition, the handset may also communicate wirelessly with other devices in the network via the RF circuitry 31. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), LTE, email, and Short Messaging Service (SMS), among others.

The power supply 32 may be used to power various components of the handset, and the power supply 32 may be a battery. Optionally, the power source may be logically connected to the processor 30 through a power management system, so as to implement functions of managing charging, discharging, power consumption management, and the like through the power management system.

The memory 33 may be used to store software programs and/or modules, and the processor 30 executes various functional applications and data processing of the mobile phone by operating the software programs and/or modules stored in the memory 33. The memory 33 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, image data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 33 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 34 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 34 may include a touch screen 341 and other input devices 342. The touch screen 341, also called a touch panel, may collect touch operations of a user on or near the touch screen 341 (for example, operations of the user on or near the touch screen 341 using any suitable object or accessory such as a finger or a stylus pen), and drive the corresponding connection device according to a preset program. Alternatively, the touch screen 341 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 30, and can receive and execute commands sent by the processor 30. In addition, the touch screen 341 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. Other input devices 342 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power switch keys, etc.), a trackball, a mouse, and a joystick.

The display unit 35 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 35 may include a display panel 351. Alternatively, the display panel 351 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch screen 341 may cover the display panel 351, and when the touch screen 341 detects a touch operation on or near the touch screen, the touch screen is transmitted to the processor 30 to determine the type of the touch event, and then the processor 30 provides a corresponding visual output on the display panel 351 according to the type of the touch event. Although in fig. 3, the touch screen 341 and the display panel 351 are two separate components to implement the input and output functions of the mobile phone, in some embodiments, the touch screen 341 and the display panel 351 may be integrated to implement the input and output functions of the mobile phone.

Audio circuitry 36, a speaker 361, and a microphone 362 for providing an audio interface between a user and a cell phone. In one aspect, the audio circuit 36 may transmit the electrical signal converted from the received audio data to the speaker 361, and the audio signal is converted into a sound signal by the speaker 361 for output. On the other hand, the microphone 362 converts the collected sound signals into electrical signals, which are received by the audio circuit 36 and converted into audio data, which are then output by the processor 30 to the RF circuit 31 for transmission to, for example, another cellular phone, or output by the processor 30 to the memory 33 for further processing.

Optionally, the handset as shown in fig. 3 may also include various sensors. Such as gyroscope sensors, hygrometer sensors, infrared sensors, magnetometer sensors, etc., and will not be described in detail herein.

Optionally, the mobile phone shown in fig. 3 may further include a Wi-Fi module, a bluetooth module, and the like, which are not described herein again.

With reference to the application scenario and the wireless communication system, an embodiment of the present invention provides a signal transmission method, as shown in fig. 4, where the method may include S101 to S103:

s101, the terminal equipment determines uplink configuration information, wherein the uplink configuration information comprises an uplink carrier and the repetition times, or the uplink configuration information comprises a signal waveform and the repetition times, or the uplink configuration information comprises the uplink carrier, the signal waveform and the repetition times.

The uplink carrier is one of at least two carriers, and the at least two carriers may be a TDD carrier, an FDD uplink carrier, and an SUL carrier.

In this embodiment of the present invention, the uplink configuration information is configuration information used for a terminal device to send an uplink signal in a process of accessing a network, where the uplink carrier may include multiple different types of carriers, for example, the type of the uplink carrier may be a Time Division Duplex (TDD) carrier, a Frequency Division Duplex (FDD) uplink carrier, or an SUL carrier. Generally, carriers other than the SUL carrier type may be referred to as non-SUL carriers, where the non-SUL carriers may be TDD carriers or FDD uplink carriers. Further optionally, the SUL carriers may also be divided into SUL carriers of different types, for example, by frequency range division, the SUL carriers below the frequency of 3GHz are a type of carrier, the SUL carriers above the frequency of 3GHz are another type, and the SUL carriers may also include other types of carriers, which is not specifically limited in the embodiment of the present invention.

The repetition times in the uplink configuration information is an implementation manner of coverage enhancement, and the energy or power of a signal received by a receiving end is increased by means of transmitting the signal for multiple times, so that the accuracy of signal reception is improved. The signal waveform is a waveform carrying a signal to be transmitted, and the description of the signal waveform is introduced in conjunction with the above concept, and the signal waveform generally includes an OFDM waveform and a DFT-S-OFDM waveform.

And S102, the terminal equipment sends an uplink signal to the network equipment according to the uplink configuration information.

In the embodiment of the present invention, the higher the frequency of the uplink carrier is, the smaller the coverage area is, and for a terminal device located in the center of a cell, the uplink carrier with a higher frequency (for example, the non-SUL carrier deployed at 3.5GHz described above) may be used to transmit an uplink signal; for the terminal device located at the edge of the cell, the uplink signal may be sent by using the uplink carrier with a lower frequency (for example, the SUL carrier deployed on the 1.8GHz band described above), and thus, the terminal device determines the appropriate uplink carrier to send the uplink signal, and the accuracy of receiving the uplink signal by the receiving end can be improved.

The terminal sends an uplink signal to the network device according to the repetition times to realize coverage enhancement, for example, when the terminal device is located in the center of a cell in the process of accessing the network, the terminal device can send the uplink signal by using a smaller repetition time, for example, the terminal device can successfully access the network by sending a random access preamble signal once; when the terminal equipment is positioned at the edge of the cell, the terminal equipment can successfully access the network only by sending the uplink signal for multiple times, and the terminal equipment repeatedly sends the uplink signal to the network equipment for multiple times, so that the success rate of accessing the terminal equipment to the network can be improved.

The terminal equipment adopts a proper signal waveform to send the uplink signal, and the success rate of receiving the uplink signal by the receiving end can be improved. Because the peak-to-average ratio of the DFT-S-OFDM waveform is smaller than that of the OFDM waveform, and the lower the peak-to-average ratio is, the higher the transmission power can be achieved, for terminal equipment at the edge of a cell, when the DFT-S-OFDM waveform is used for transmitting an uplink signal, the higher the transmission power of the uplink signal is, and thus, the accuracy of receiving the uplink signal by a receiving end can be improved.

In summary, the terminal device may send the uplink signal to the network device according to the uplink carrier and the repetition number, or send the uplink signal to the network device according to the signal waveform and the repetition number, or send the uplink signal to the network device according to the uplink carrier, the signal waveform, and the repetition number, so that the success rate of accessing the network by the terminal device can be further improved.

Optionally, the terminal device may also send an uplink signal to the network device according to the uplink carrier and the signal waveform.

S103, the network equipment receives the uplink signal from the terminal equipment.

The uplink signal is sent by the terminal device according to the uplink configuration information.

The signal sending method provided by the embodiment of the invention is applied to a scene that the terminal equipment is accessed to the network, the terminal equipment can determine the uplink configuration information comprising the uplink carrier and the repetition frequency, or comprising the signal waveform and the repetition frequency, or comprising the uplink carrier, the signal waveform and the repetition frequency, and sends the uplink signal to the network equipment according to the uplink configuration information.

It should be noted that, in this embodiment of the present invention, an uplink signal sent by a terminal device to a network device may be a random access preamble signal, or may also be an uplink signal scheduled by a random access response, and the signal sending method provided in this embodiment of the present invention is described in detail below from the perspective of sending different uplink signals by the terminal device.

As shown in fig. 5, when the uplink signal is a random access preamble signal, a signal transmission method provided in an embodiment of the present invention includes:

s201, the terminal equipment determines uplink configuration information, wherein the uplink configuration information comprises an uplink carrier and the repetition times.

Wherein the uplink carrier is one of at least two uplink carriers.

In this embodiment of the present invention, when the uplink signal sent by the terminal device to the network device is a random access preamble (i.e., message1), the uplink configuration information includes two information, namely, an uplink carrier and a repetition number, and for the description of the uplink carrier and the repetition number, reference may be made to the detailed description of the uplink carrier and the repetition number in S101, which is not described herein again.

S202, the terminal equipment sends a random access preamble signal to the network equipment according to the uplink carrier and the repetition times.

S203, the network device receives the random access preamble signal from the terminal device.

In the embodiment of the invention, the terminal equipment sends the random access preamble signal to the network equipment according to the uplink carrier and the repetition frequency, for example, the uplink carrier is the SUL carrier, and the repetition frequency is 4, so that the terminal equipment can send the random access preamble signal to the network equipment on the SUL carrier repeatedly for 4 times, so that the terminal equipment not only can send the random access preamble signal on the uplink carrier properly, but also can send the random access preamble signal repeatedly for multiple times, coverage enhancement is realized, the correctness of the random access preamble signal received by the network equipment is improved, and the success rate of the terminal equipment accessing the network is improved.

With reference to fig. 5, as shown in fig. 6, before the above S201, the signal transmission method provided by the embodiment of the present invention includes S204 to S205:

s204, the network equipment sends at least one RSRP threshold value to the terminal equipment.

Wherein the at least one RSRP threshold is used to determine uplink configuration information (including uplink carriers and repetition times).

S205, the terminal device receives the at least one RSRP threshold from the network device.

In the embodiment of the present invention, the terminal device receives at least one RSRP threshold sent by the network device, and the terminal device may determine a predicted RSRP according to a downlink reference signal sent by the network device, and further determine the uplink configuration information according to the predicted RSRP.

In an implementation manner, based on S204 shown in fig. 6, the S201 may specifically include S2011:

and S2011, the terminal equipment determines the uplink carrier and the repetition frequency according to the measured RSRP and at least one RSRP threshold, and the at least one RSRP threshold and the uplink carrier have a corresponding relation with the repetition frequency.

In this embodiment of the present invention, the terminal device may determine, according to the determined measured RSRP and at least one RSRP threshold sent by the network device, uplink configuration information (i.e., an uplink carrier and a repetition number) matching the measured RSRP, where a correspondence between the at least one RSRP threshold and the uplink carrier and the repetition number refers to a correspondence between an RSRP interval formed by the at least one RSRP threshold and the uplink carrier and the repetition number.

The at least one RSRP threshold may include M RSRP thresholds (M is a positive integer greater than or equal to 1), which are denoted as RSRP thresholds i, i is greater than or equal to 1 and less than M, wherein the RSRP threshold i is less than the RSRP threshold i + 1. When the measured RSRP is smaller than the RSRP threshold value 1, the terminal equipment determines that the uplink carrier is the 1 st uplink carrier, and the repetition frequency is the 1 st repetition frequency; when the measured RSRP is greater than or equal to the RSRP threshold value 1 and less than the RSRP threshold value 2, the terminal equipment determines the 2 nd uplink carrier of the uplink carrier and the 2 nd repetition times; when the measured RSRP is greater than or equal to the RSRP threshold i and less than the RSRP threshold i +1, the terminal equipment determines that the uplink carrier is the (i + 1) th uplink carrier, and the repetition frequency is the (i + 1) th repetition frequency; when the measured RSRP is greater than or equal to the RSRP threshold M, the terminal device determines that the uplink carrier is the M +1 th uplink carrier, and the repetition number is the M +1 th repetition number, it should be noted that the ith uplink carrier and the jth uplink carrier are different uplink carriers and/or the jth repetition number is not equal to the jth repetition number, and i is not equal to j.

It can be seen that the above-mentioned at least one RSRP threshold may divide the range of the whole RSRP threshold into a plurality of smaller RSRP ranges (for convenience of description, the RSRP ranges are hereinafter referred to as RSRP intervals), for example, assuming that the measured RSRP is RSRP _ m, the RSRP thresholds include 3 RSRP thresholds, which are respectively denoted as RSRP _ th1, RSRP _ th2 and RSRP _ th3, RSRP _ th1< RSRP _ th2< RSRP _ th3, and the 3 RSRP thresholds divide the interval of the whole RSRP threshold into 4 RSRP intervals, as shown in fig. 7, the 4 RSRP intervals are interval 1, interval 2, interval 3 and interval 4, respectively, and for interval 1, RSRP _ m < RSRP _ th 1; for interval 2, RSRP _ th1 is not more than RSRP _ m < RSRP _ th 2; for interval 3, RSRP _ th2 is not more than RSRP _ m < RSRP _ th 3; for interval 4, RSRP _ m ≧ RSRP _ th 3.

The determining, by the terminal device, the uplink carrier and the repetition number according to the measured RSRP and the at least one RSRP threshold may specifically include: and the terminal equipment determines the uplink carrier and the repetition times according to the measured RSRP and the corresponding relation between the RSRP interval and the uplink configuration information.

Optionally, first, the terminal device may determine an RSRP interval to which the measured RSRP belongs according to the measured RSRP and at least one RSRP threshold, and then, the terminal device determines the uplink carrier and the repetition number according to a corresponding relationship between the measured RSRP interval, the RSRP interval, and the uplink configuration information.

In the embodiment of the present invention, after acquiring the measured RSRP and receiving at least one RSRP threshold sent by the network device, the terminal device may determine an RSRP interval to which the measured RSRP belongs, and as shown in fig. 7, if the measured RSRP determined by the terminal device is greater than or equal to RSRP _ th1 and is less than RSRP _ th2, it is seen that the RSRP interval to which the measured RSRP belongs is interval 2 in fig. 7.

In the embodiment of the present invention, the terminal device is preconfigured with the corresponding relationship between the RSRP interval and the uplink configuration information, that is, the corresponding relationship between the RSRP interval and the uplink carrier and the repetition number, and the terminal device may determine, according to the RSRP interval to which the measured RSRP belongs, the uplink carrier and the repetition number corresponding to the RSRP interval to which the measured RSRP belongs.

For example, assuming that the RSRP threshold received by the terminal device from the network device is 1, the RSRP threshold divides the entire RSRP interval into 2 RSRP intervals, the RSRP threshold is denoted as RSRP _ th, and the measured RSRP is denoted as RSRP _ m, as shown in table 1 below, an example of a corresponding relationship between the RSRP interval and the uplink carrier and the number of repetitions is described.

TABLE 1

RSRP interval	Uplink carrier wave	Number of repetitions
			Interval 1(RSRP _ m < RSRP _ th)	non-SUL carriers	1
Interval 2(RSRP _ m ≧ RSRP _ th)	SUL Carrier	4

With reference to table 1, if RSRP _ m is smaller than RSRP _ th, the terminal device determines that the uplink carrier is a non-SUL carrier and the repetition number is 1 according to the correspondence between the RSRP interval and the uplink carrier and the repetition number in table 1.

Optionally, the at least one RSRP threshold includes at least one first RSRP threshold and at least one second RSRP threshold, where the at least one first RSRP threshold is used for the terminal device to determine an uplink carrier for sending the random access preamble signal, and the at least one second RSRP threshold is used for the terminal device to determine the number of repetitions for sending the random access preamble signal, and the second RSRP threshold corresponds to one uplink carrier of the at least two uplink carriers.

In another implementation, based on S204 shown in fig. 6, when the at least one RSRP threshold includes at least one first RSRP threshold and at least one second RSRP threshold, as shown in fig. 8, S201 may specifically include S2012-S2013:

s2012, the terminal device determines, according to the measured RSRP and the at least one first RSRP threshold, a first uplink carrier for sending the uplink signal.

The first uplink carrier is one of at least two uplink carriers, and the at least one first RSRP threshold is received by the terminal device from the network device.

S2013, the terminal equipment determines the repetition times of sending the uplink signals according to the measured RSRP and at least one second RSRP threshold corresponding to the first uplink carrier.

Wherein at least one second RSRP threshold is received by the terminal device from the network device.

It should be noted that, in the embodiment of the present invention, when the RSRP thresholds sent by the network device include at least two RSRP thresholds, the at least two RSRP thresholds may be RSRP thresholds of the same type or RSRP thresholds of different types. For the above S2011, the at least two RSRP thresholds may be RSRP thresholds of the same type, and for the above S2012-S2013, the at least two RSRP thresholds are RSRP thresholds of different types, specifically, the at least one first RSRP threshold is a RSRP threshold of one class, and the at least one second RSRP threshold is an RSRP threshold of another class.

The RSRP thresholds of which the at least two RSRP thresholds are of the same type may be understood as: the at least two RSRP thresholds divide the whole RSRP into at least three RSRP intervals, which have a correspondence with the uplink carrier and the repetition number, similar to the correspondence shown in table 1 above, and the terminal device can directly determine the uplink carrier and the repetition number according to the RSRP interval to which the measured RSRP belongs. For example, it is assumed that the RSRP thresholds sent by the network device include 3 RSRP thresholds, which are respectively denoted as RSRP _ th1, RSRP _ th2, and RSRP _ th3, and the measured RSRP is denoted as RSRP _ m, as shown in table 2 below, an example of a corresponding relationship between an RSRP interval and an uplink carrier and a repetition number is provided.

TABLE 2

RSRP interval	Uplink carrier wave	Number of repetitions
			Interval 1(RSRP _ m < RSRP _ th1)	non-SUL carriers	1
Interval 2(RSRP _ th1 ≤ RSRP _ m < RSRP _ th2)	non-SUL carriers	4
			Interval 3(RSRP _ th2 ≤ RSRP _ m < RSRP _ th3)	SUL Carrier	1
Interval 4(RSRP _ m is greater than or equal to RSRP _ th3)	SUL Carrier	2

The at least two RSRP thresholds being different types of RSRP thresholds may be understood as: the at least two RSRP thresholds include at least one first RSRP threshold that may be used to determine uplink carriers and at least one second RSRP threshold that may be used to determine the number of repetitions.

It should be noted that, in the embodiment of the present invention, the at least one first RSRP threshold is a common parameter of a cell, and values of the first RSRP thresholds are the same for all terminal devices in the same cell; the second RSRP threshold is a dedicated parameter of the uplink carrier, and values of the corresponding second RSRP thresholds may be different for different uplink carriers.

As an example, it is assumed that the RSRP thresholds sent by the network device include 3 RSRP thresholds, which are denoted as RSRP _ th1, RSRP _ th2, and RSRP _ th3, respectively, where RSRP _ th1< RSRP _ th2< RSRP _ th3, and RSRP _ th1 are first RSRP thresholds, and the terminal device determines, according to the measured RSRP (denoted as RSRP _ m) and the RSRP _ th1, an RSRP interval to which the measured RSRP belongs, where RSRP _ th1 divides the entire RSRP interval into 2 RSRP intervals, and table 3 below is an example of a corresponding relationship between the RSRP intervals and uplink carriers.

TABLE 3

RSRP interval	Uplink carrier wave
		Interval 1(RSRP _ m < RSRP _ th1)	First uplink carrier
Interval 2(RSRP _ m is greater than or equal to RSRP _ th1)	Second uplink carrier

It should be noted that, in table 3, the first uplink carrier and the second uplink carrier are different types of carriers. The first uplink carrier may be a TDD carrier, an FDD uplink carrier, or an SUL carrier, and similarly, the second uplink carrier may also be a TDD carrier, an FDD uplink carrier, or an SUL carrier.

The RSRP _ th2 and RSRP _ th3 are second RSRP thresholds, and in combination with table 3, assuming that the uplink carrier determined by the terminal device is the first uplink carrier, and the second RSRP threshold corresponding to the first uplink carrier is RSRP _ th2, the terminal device determines the number of repetitions according to the measured RSRP (i.e., RSRP _ m) and RSRP _ th 2. It is understood that RSRP _ th2 divides the whole RSRP interval into 2 RSRP intervals, and table 4 below is an example of the corresponding relationship between the RSRP interval and the number of repetitions when the uplink carrier is the first uplink carrier; assuming that the uplink carrier determined by the terminal device is a second uplink carrier, and the second RSRP threshold corresponding to the second uplink carrier is RSRP _ th3, the terminal device determines the repetition number according to the measured RSRP (i.e., RSRP _ m) and RSRP _ th3, it can be understood that RSRP _ th3 divides the whole RSRP interval into 2 RSRP intervals, and as shown in table 5 below, an example of a corresponding relationship between the RSRP interval and the repetition number when the uplink carrier is the second uplink carrier.

TABLE 4

RSRP interval	Number of repetitions
		Interval 1(RSRP _ m < RSRP _ th2)	4
Interval 2(RSRP _ m is greater than or equal to RSRP _ th2)	1

TABLE 5

RSRP interval	Number of repetitions
		Interval 1(RSRP _ m < RSRP _ th3)	8
Interval 2(RSRP _ m is greater than or equal to RSRP _ th3)	1

It should be noted that, in the embodiment of the present invention, when there is no second RSRP threshold corresponding to the first uplink carrier in the at least one second RSRP threshold, the terminal device determines the number of repetitions of sending the random access preamble signal to be 1, or the terminal device determines the number of repetitions of sending the random access preamble signal to be a preset number of repetitions.

Optionally, in the foregoing embodiment, if the repetition number determined by the terminal device is referred to as a first repetition number, the terminal device sends the random access preamble signal to the network device on the uplink carrier by using the first repetition number, and when the uplink carrier is the first type of uplink carrier in the case that the random access of the terminal device fails, the terminal device continues to send the random access preamble signal to the network device on the uplink carrier by using a second repetition number, where the second repetition number is greater than the first repetition number.

In the embodiment of the present invention, for a certain type of uplink carrier (for example, SUL carrier), when the terminal device sends the random access preamble signal with the first repetition number in the uplink configuration information, and when the number of times that the terminal device attempts to send the random access preamble signal reaches the first repetition number, the terminal device still does not successfully access the network, at this time, the terminal device continues to send the random access preamble signal with the second repetition number greater than the first repetition number on the uplink carrier, so that the problem that the terminal device cannot access the network because the measured RSRP determined by the terminal device is inaccurate can be avoided, so that the first repetition number determined by the terminal device cannot meet the actual requirement.

In summary, the uplink configuration information may be determined by the terminal device according to the measured RSRP and at least one RSRP threshold, and it should be noted that in the embodiment of the present invention, the uplink configuration information may also be determined by the terminal device according to the indication information sent by the network device.

Optionally, with reference to fig. 5, as shown in fig. 9, before the step S201, the signal sending method provided in the embodiment of the present invention may further include step S206:

s206, the network equipment sends indication information to the terminal equipment, wherein the indication information indicates uplink configuration information, and the uplink configuration information comprises uplink carriers and repetition times.

In the embodiment of the present invention, the network device may carry the indication information in the downlink control information and send the downlink control information to the terminal device, specifically, a field with N (N >0) bits may be added to the downlink control information, and the field with N bits may indicate the uplink carrier and the repetition number.

Based on S206 shown in fig. 9, S201 may specifically include S2014-S2015:

s2014, the terminal device receives the indication information from the network device.

S2015, the terminal device determines uplink configuration information according to the indication information.

Specifically, S2015 may include S2015 a:

s2015a, the terminal device determines the uplink configuration information according to the indication information, the correspondence between the indication information and the uplink carrier and the number of repetitions.

In the embodiment of the present invention, since the terminal device pre-stores the corresponding relationship between the indication information and the uplink configuration information, that is, the corresponding relationship between the indication information and the uplink carrier and the repetition number, after receiving the indication information, the terminal device may determine the uplink carrier and the repetition number according to the indication information. Taking the example that the field of the indication information includes 2 bits, the following table 6 shows an example of the correspondence relationship between the indication information and the uplink carrier and the number of repetitions.

TABLE 6

Indicating information	Uplink carrier wave	Number of repetitions
			00	First uplink carrier	Number of first repetitions
01	First uplink carrier	Number of second repetition
			10	Second uplink carrier	Number of third repetition
11	Second uplink carrier	Number of fourth repetition

Of course, the correspondence relationship between the indication information and the uplink carrier and the number of repetitions may also be the correspondence relationship shown in table 7 below.

TABLE 7

Indicating information	Uplink carrier wave	Number of repetitions
			00	First uplink carrier	Number of first repetitions
01	First uplink carrier	Number of second repetition
			10	First uplink carrier	Number of third repetition
11	Second uplink carrier	Number of fourth repetition

It should be noted that, in the embodiment of the present invention, the repetition times corresponding to different uplink carriers may be the same or different, for example, in table 6, the first repetition time and the third repetition time may be the same or different; the repetition times corresponding to the same uplink carrier are different, for example, in table 6, the first repetition time is different from the second repetition time, and the third repetition time is different from the fourth repetition time. The first uplink carrier may be a TDD carrier, an FDD uplink carrier, or an SUL carrier, and similarly, the second uplink carrier may also be a TDD carrier, an FDD uplink carrier, or an SUL carrier, and specifically, the uplink configuration information may be configured according to an actual use requirement, which is not limited in the embodiment of the present invention.

For example, as shown in table 8 below, when the indication information is 3 bits, the indication information corresponds to the uplink carrier and the repetition number.

TABLE 8

Indicating information	Uplink carrier wave	Number of repetitions
			000	TDD carrier	1
001	TDD carrier	4
			010	TDD carrier	8
011	First SUL Carrier	1
			100	First SUL Carrier	2
101	Second SUL Carrier	1
			110	Second SUL Carrier	2

As shown in fig. 10, when the uplink signal is an uplink signal (i.e. message3) scheduled by a random access response, the signaling method according to the embodiment of the present invention includes:

s301, the terminal device determines uplink configuration information, wherein the uplink configuration information comprises an uplink carrier and the repetition times, or the uplink configuration information comprises a signal waveform and the repetition times, or the uplink configuration information comprises the uplink carrier, the signal waveform and the repetition times.

Wherein the uplink carrier is one of at least two uplink carriers.

For the description of the uplink carrier, the number of repetitions, and the signal waveform, reference may be made to the specific description in S101, which is not described herein again.

Optionally, the uplink configuration information may also include an uplink carrier and a repetition number.

S302, the terminal equipment sends the uplink signal scheduled by the random access response to the network equipment according to the uplink configuration information.

S303, the network device receives the uplink signal scheduled by the random access response from the terminal device.

In the embodiment of the present invention, the terminal device may send the uplink signal scheduled by the random access response to the network device according to the uplink carrier and the repetition number, or send the uplink signal scheduled by the random access response to the network device according to the signal waveform and the repetition number, or send the uplink signal scheduled by the random access response to the network device according to the uplink carrier, the signal waveform and the repetition number, so that the success rate of accessing the network by the terminal device can be further improved.

Optionally, with reference to fig. 10, as shown in fig. 11, before S301, the signal sending method provided in the embodiment of the present invention may further include S304:

s304, the network device sends indication information to the terminal device, wherein the indication information indicates the uplink carrier and the repetition times, or the indication information indicates the signal waveform and the repetition times, or the indication information indicates the uplink carrier, the signal waveform and the repetition times.

In the embodiment of the present invention, the network device may carry the indication information in a random access response (i.e., message2) and send the random access response to the terminal device, specifically, an N (N >0) bit field may be added in the random access response, and the N bit field may indicate the above several types of uplink configuration information.

Based on S304 shown in fig. 11, S301 may specifically include S3011-S3012:

s3011, the terminal device receives the instruction information from the network device.

And S3012, the terminal device determines the uplink configuration information according to the indication information.

Similar to S2014-S2015, S3012 may include S3012 a:

s3012a, the terminal device determines the uplink configuration information according to the indication information, the correspondence between the indication information and the uplink configuration information.

The corresponding relationship between the indication information and the uplink configuration may include a corresponding relationship between the indication information and the uplink carrier and the number of repetitions, or include a corresponding relationship between the indication information and the signal waveform and the number of repetitions, or include a corresponding relationship between the indication information and the uplink carrier, the signal waveform, and the number of repetitions.

Illustratively, the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the field of the indication information includes 3 bits as an example, and the following table 9 is an example of a corresponding relationship between the indication information and the uplink carrier, the signal waveform, and the repetition number.

TABLE 9

Indicating information	Uplink carrier wave	Number of repetitions	Signal waveform
				000	TDD carrier	1	OFDM
001	TDD carrier	4	DFT-S-OFDM
				010	TDD carrier	8	DFT-S-OFDM
011	First SUL Carrier	1	OFDM
				100	First SUL Carrier	2	DFT-S-OFDM
101	Second SUL Carrier	1	OFDM
				110	Second SUL Carrier	2	DFT-S-OFDM

For the corresponding relationship between the indication information and the uplink carrier and the repetition number, and the corresponding relationship between the indication information and the signal waveform and the repetition number are similar to the corresponding relationship in the table 9, which is not illustrated in any embodiment of the present invention.

Optionally, in this embodiment of the present invention, when the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the uplink carrier and the repetition number, so that the S3012 may include S3012b and S3012c, or the S3012 may include S3012b and S3012 d:

and S3012b, the terminal device determines the uplink carrier and the repetition frequency according to the indication information.

In the embodiment of the present invention, the terminal device may determine the uplink carrier and the repetition number according to the received indication information and the corresponding relationship between the indication information and the uplink carrier and the repetition number, and then determine the signal waveform according to the repetition number, that is, the terminal device may understand that the repetition number may implicitly indicate the signal waveform. Specifically, the following S3012c and S3012 d:

s3012c, in the case where the number of repetitions is less than or equal to the preset number, the terminal device determines the signal waveform as the first signal waveform.

S3012d, the terminal device determines the signal waveform as the second signal waveform when the number of repetitions is greater than a preset number.

The preset times are preset on the terminal equipment.

It should be noted that, in the embodiment of the present invention, the first signal waveform may be an OFDM waveform, and may also be a DFT-S-OFDM waveform, and similarly, the second signal waveform may be an OFDM waveform, and may also be a DFT-S-OFDM waveform. The first signal waveform is an OFDM waveform, and the second signal waveform is a DFT-S-OFDM waveform; and if the first signal waveform is a DFT-S-OFDM waveform, the second signal waveform is an OFDM waveform.

Optionally, in the embodiment of the present invention, when the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the signal waveform and the repetition number, the terminal device may determine the signal waveform and the repetition number according to the indication information, and if the repetition number may implicitly indicate the uplink carrier, may determine the uplink carrier according to the repetition number.

The above-mentioned scheme provided by the embodiment of the present invention is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, such as a terminal device, a network device, etc., contains a hardware structure and/or software modules for performing each function in order to realize the functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

According to the method example, the terminal device, the network device, and the like may be divided into the functional modules, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In the case of dividing each functional module by corresponding functions, fig. 12 shows a possible structural diagram of the terminal device in the foregoing embodiment, as shown in fig. 12, the terminal device may include: a determining module 40 and a sending module 41. The determining module 40 may be configured to support the terminal device to perform S101, S201 (including S2011 or S2012-S2013), S2015 (including S2015a), and S301 (including S3012(S3012 includes S3012a, or includes S3012b and S3012c, or includes S3012b and S3012d) in the foregoing method embodiments; the sending module 41 may be configured to support the terminal device to perform S102, S202, and S302 in the foregoing method embodiment; optionally, as shown in fig. 12, the terminal device may further include a receiving module 42. The receiving module 42 may be configured to support the terminal device to perform S205, S2014, and S3011 in the foregoing method embodiment. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of an integrated unit, fig. 13 shows a schematic diagram of a possible structure of the terminal device involved in the above-described embodiment. As shown in fig. 13, the terminal device may include: a processing module 50 and a communication module 51. The processing module 50 may be used to control and manage actions of the terminal device, for example, the processing module 50 may be used to support the terminal device to perform S101, S201 (including S2011 or S2012-S2013), S2015 (including S2015a), and S301 (including S3012(S3012 including S3012a, or including S3012b and S3012c, or including S3012b and S3012d) in the above-described method embodiments, and/or other processes for the techniques described herein. The communication module 51 may be configured to support the terminal device to communicate with other network entities, for example, the communication module 51 may be configured to support the terminal device to perform S102, S202, S205, S2014, and S3011 in the foregoing method embodiments. Optionally, as shown in fig. 13, the terminal device may further include a storage module 52 for storing program codes and data of the terminal device.

The processing module 50 may be a processor or a controller (for example, the processor 30 shown in fig. 3), such as a Central Processing Unit (CPU), a general purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the embodiment disclosure. The processor described above may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs and microprocessors, and the like. The communication module 51 may be a transceiver, a transceiver circuit, a communication interface, or the like (e.g., the RF circuit 31 shown in fig. 3). The storage module 52 may be a memory (e.g., may be the memory 33 described above with reference to fig. 3).

When the processing module 50 is a processor, the communication module 51 is a transceiver, and the storage module 52 is a memory, the processor, the transceiver, and the memory may be connected by a bus. The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the case of dividing each functional module by corresponding functions, fig. 14 shows a possible structural schematic diagram of the network device involved in the foregoing embodiment, as shown in fig. 14, the network device may include: a transmitting module 60 and a receiving module 61. The sending module 60 may be configured to support the network device to perform S204, S206, and S304 in the foregoing method embodiment; the receiving module 61 may be configured to support the network device to perform S103, S203, and S303 in the above method embodiment. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of an integrated unit, fig. 15 shows a schematic diagram of a possible structure of the network device involved in the above-described embodiment. As shown in fig. 15, the network device may include: a processing module 70 and a communication module 71. The processing module 70 may be used to control and manage the actions of the network device. The communication module 71 may be configured to support communication between the network device and other network entities, for example, the communication module 71 may be configured to support the network device to perform S103, S203, S204, S206, S303, and S304 in the above-described method embodiments. Optionally, as shown in fig. 15, the network device may further include a storage module 72 for storing program codes and data of the network device.

The processing module 70 may be a processor or controller (e.g., the processor shown in fig. 2 described above), such as a CPU, general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the embodiment disclosure. The processor described above may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs and microprocessors, and the like. The communication module 71 may be a transceiver, a transceiver circuit, a communication interface, or the like (for example, may be the radio frequency unit shown in fig. 2). The storage module 72 may be a memory (e.g., may be the memory described above with respect to fig. 2).

When the processing module 70 is a processor, the communication module 71 is a transceiver, and the storage module 72 is a memory, the processor, the transceiver, and the memory may be connected by a bus. The bus may be a PCI bus or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, 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 loaded and executed on a computer, cause the flow or functions according to embodiments of the invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on 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 transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Drive (SSD)), among others.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A signal transmission method, comprising:

the method comprises the steps that terminal equipment determines uplink configuration information, wherein the uplink configuration information comprises an uplink carrier and repetition times, or the uplink configuration information comprises a signal waveform and the repetition times, or the uplink configuration information comprises the uplink carrier, the signal waveform and the repetition times, wherein the uplink carrier is one of at least two uplink carriers;

the terminal equipment sends an uplink signal to network equipment according to the uplink configuration information;

the terminal equipment sends a random access preamble signal to the network equipment on the uplink carrier by adopting a first repetition number; and under the condition that the random access of the terminal equipment fails, when the uplink carrier is a first type of uplink carrier, the terminal equipment continuously sends a random access preamble signal to the network equipment on the uplink carrier by adopting a second repetition number, wherein the second repetition number is greater than the first repetition number, the types of the uplink carrier comprise an SUL carrier and a non-SUL carrier, and the first type of uplink carrier is an SUL carrier.

2. The method of claim 1, wherein the uplink configuration information comprises an uplink carrier and a repetition number; the terminal device determining the uplink configuration information includes:

the terminal equipment determines the uplink carrier and the repetition times according to the measured Reference Signal Received Power (RSRP) and at least one RSRP threshold, wherein the repetition times are one of at least two repetition times, the at least one RSRP threshold is received by the terminal equipment from the network equipment, and a corresponding relation exists between the at least one RSRP threshold and the uplink carrier and the repetition times.

3. The method of claim 1, wherein the uplink configuration information comprises an uplink carrier and a repetition number; the terminal device determining the uplink configuration information includes:

the terminal equipment determines a first uplink carrier for sending the uplink signal according to the measured RSRP and at least one first RSRP threshold; the first uplink carrier is one of the at least two uplink carriers, and the at least one first RSRP threshold is received by the terminal device from the network device;

and the terminal equipment determines the repetition times of sending the uplink signal according to the measured RSRP and at least one second RSRP threshold corresponding to the first uplink carrier, wherein the repetition times is one of at least two repetition times, and the at least one second RSRP threshold is received by the terminal equipment from the network equipment.

4. The method of claim 1, wherein the determining, by the terminal device, the uplink configuration information comprises:

the terminal equipment receives indication information from the network equipment, wherein the indication information indicates uplink carrier waves and repetition times, or the indication information indicates signal waveforms and repetition times, or the indication information indicates the uplink carrier waves, the signal waveforms and the repetition times;

and the terminal equipment determines the uplink configuration information according to the indication information.

5. The method of claim 4, wherein the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the uplink carrier and the repetition number; the terminal device determining the uplink configuration information includes:

the terminal equipment determines the uplink carrier and the repetition times according to the indication information;

under the condition that the repetition times are less than or equal to the preset times, the terminal equipment determines the signal waveform as a first signal waveform;

and under the condition that the repetition times are greater than the preset times, the terminal equipment determines that the signal waveform is a second signal waveform.

6. The method of claim 4,

the uplink signal is a random access preamble signal, and the indication information is carried in downlink control information;

the uplink signal is an uplink signal scheduled by a random access response, and the indication information is carried in the random access response.

7. A signal transmission method, comprising:

the method comprises the steps that network equipment sends indication information to terminal equipment, wherein the indication information indicates uplink configuration information, the uplink configuration information comprises uplink carriers and repetition times, or the uplink configuration information comprises signal waveforms and repetition times, or the uplink configuration information comprises the uplink carriers, the signal waveforms and the signal waveforms, wherein the uplink carriers are one of at least two uplink carriers;

the network equipment receives an uplink signal from the terminal equipment, wherein the uplink signal is sent by the terminal equipment according to the uplink configuration information;

the network equipment receives a first random access preamble signal; the first random access preamble signal is a random access preamble signal sent by the terminal device to the network device on the uplink carrier by using a first repetition number;

the network equipment receives a second random access preamble signal; the second random access preamble is a random access preamble that is sent to the network device by using a second repetition number on the uplink carrier when the uplink carrier is a first type of uplink carrier under the condition that random access fails after the terminal device sends the first random access preamble, where the second repetition number is greater than the first repetition number, the types of the uplink carrier include a SUL carrier and a non-SUL carrier, and the first type of uplink carrier is a SUL carrier.

8. The method of claim 7,

9. A method for signaling, the method comprising:

the method comprises the steps that network equipment sends at least one Reference Signal Received Power (RSRP) threshold to terminal equipment, wherein the at least one RSRP threshold is used for determining uplink configuration information, the uplink configuration information comprises uplink carriers and repetition times, and the uplink carriers are one of at least two uplink carriers;

10. The method of claim 9,

the at least one RSRP threshold includes at least one first RSRP threshold and at least one second RSRP threshold, where the at least one first RSRP threshold is used to determine the uplink carrier, and the at least one second RSRP threshold corresponding to the uplink carrier is used to determine the repetition number, where the repetition number is one of at least two repetition numbers.

11. The terminal equipment is characterized by comprising a determining module and a sending module;

the determining module is configured to determine uplink configuration information, where the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, where the uplink carrier is one of at least two uplink carriers;

the sending module is used for sending an uplink signal to the network equipment according to the uplink configuration information;

the sending module is further configured to send a random access preamble signal to the network device on the uplink carrier by using a first repetition number; and under the condition that the random access of the terminal equipment fails, when the uplink carrier is a first type of uplink carrier, continuously adopting a second repetition number on the uplink carrier to send a random access preamble signal to the network equipment, wherein the second repetition number is greater than the first repetition number, the types of the uplink carrier comprise an SUL carrier and a non-SUL carrier, and the first type of uplink carrier is an SUL carrier.

12. The terminal device according to claim 11, wherein the uplink configuration information includes an uplink carrier and a repetition number;

the determining module is specifically configured to determine the uplink carrier and the repetition number according to a measured reference signal received power RSRP and at least one RSRP threshold, where the repetition number is one of at least two repetition numbers, the at least one RSRP threshold is received by the terminal device from the network device, and a corresponding relationship exists between the at least one RSRP threshold and the uplink carrier and the repetition number.

13. The terminal device according to claim 11, wherein the uplink configuration information includes an uplink carrier and a repetition number;

the determining module is specifically configured to determine, according to the measured RSRP and at least one first RSRP threshold, a first uplink carrier for sending the uplink signal; the first uplink carrier is one of the at least two uplink carriers, and the at least one first RSRP threshold is received by the terminal device from the network device; and determining the repetition times of sending the uplink signal according to the measured RSRP and at least one second RSRP threshold corresponding to the first uplink carrier, where the repetition times are one of at least two repetition times, and the at least one second RSRP threshold is received by the terminal device from the network device.

14. The terminal device of claim 11, wherein the terminal device further comprises a receiving module;

the receiving module is configured to receive indication information from the network device, where the indication information indicates an uplink carrier and a repetition number, or the indication information indicates a signal waveform and a repetition number, or the indication information indicates an uplink carrier, a signal waveform, and a repetition number;

the determining module is specifically configured to determine the uplink configuration information according to the indication information.

15. The terminal device according to claim 14, wherein the uplink configuration information includes an uplink carrier, a signal waveform, and a repetition number, and the indication information indicates the uplink carrier and the repetition number;

the determining module is specifically configured to determine the uplink carrier and the repetition number according to the indication information; and the terminal device determines the signal waveform as a first signal waveform when the repetition number is less than or equal to a preset number; and under the condition that the repetition times are greater than the preset times, the terminal equipment determines that the signal waveform is a second signal waveform.

16. The terminal device of claim 14,

17. A network device, comprising a sending module and a receiving module;

the sending module is configured to send indication information to a terminal device, where the indication information indicates uplink configuration information, where the uplink configuration information includes an uplink carrier and a repetition number, or the uplink configuration information includes a signal waveform and a repetition number, or the uplink configuration information includes an uplink carrier, a signal waveform, and a signal waveform, where the uplink carrier is one of at least two uplink carriers;

the receiving module is configured to receive an uplink signal from the terminal device, where the uplink signal is sent by the terminal device according to the uplink configuration information;

the receiving module is further configured to receive a first random access preamble signal; the first random access preamble signal is a random access preamble signal sent by the terminal device to the network device on the uplink carrier by using a first repetition number;

the receiving module is further configured to receive a second random access preamble signal; the second random access preamble is a random access preamble that is sent to the network device by using a second repetition number on the uplink carrier when the uplink carrier is a first type of uplink carrier under the condition that random access fails after the terminal device sends the first random access preamble, where the second repetition number is greater than the first repetition number, the types of the uplink carrier include a SUL carrier and a non-SUL carrier, and the first type of uplink carrier is a SUL carrier.

18. The network device of claim 17,

19. A network device, comprising a sending module and a receiving module;

the sending module is configured to send at least one reference signal received power RSRP threshold to a terminal device, where the at least one RSRP threshold is used to determine uplink configuration information, and the uplink configuration information includes an uplink carrier and a repetition number, where the uplink carrier is one of at least two uplink carriers;

20. The network device of claim 19,

21. A terminal device comprising a processor and a memory coupled to the processor;

the memory is configured to store computer instructions, and when the terminal device is running, the processor executes the computer instructions stored in the memory to cause the terminal device to perform the signal transmission method according to any one of claims 1 to 6.

22. A network device comprising a processor and a memory coupled to the processor;

the memory is configured to store computer instructions that, when executed by the network device, cause the network device to perform the signaling method of claim 7 or 8.

23. A network device comprising a processor and a memory coupled to the processor;

the memory is configured to store computer instructions that, when executed by the network device, cause the network device to perform the signaling method of claim 9 or 10.

24. A computer-readable storage medium storing computer instructions which, when executed by a processor, perform a signal transmission method according to any one of claims 1 to 10.

25. A communication system, characterized in that the communication system comprises a terminal device according to any of claims 11 to 16, 21 and a network device according to claim 17 or 18, or claim 22;

alternatively, the communication system comprises a terminal device according to any of claims 11 to 16, claim 21 and a network device according to claim 19 or 20, or claim 23.