Signal transmission method, terminal, and network side device

Abstract

The present application relates to the technical field of communications, and discloses a signal transmission method, a terminal, and a network side device. The signal transmission method of embodiments of the present application comprises: on the basis of the transmission configuration of a first signal, a terminal selects a target communication mode from among at least two communication modes; and the terminal uses the target communication mode to transmit the first signal.

Description

Method for transmitting signal, terminal and network side device

[0001] Cross-reference to related applications

[0002] The present application claims priority from the Chinese patent application No. 2024106568708, filed on May 24, 2024, and entitled "Method for transmitting signal, terminal and network side device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and particularly relates to a method for transmitting signal, a terminal and a network side device. BACKGROUND

[0004] In future communication systems, at least two communication modes (or communication modules) may be integrated into a terminal, such as an ultra-low power communication mode integrated on the basis of a traditional main communication mode. How to perform signal transmission for a terminal with at least two communication modes is a technical problem that needs to be solved in the related art. SUMMARY

[0005] Embodiments of the present application provide a method for transmitting signal, a terminal and a network side device, which can solve the problem that a terminal with at least two communication modes cannot perform signal transmission.

[0006] In a first aspect, a method for transmitting signal is provided, comprising: selecting, by a terminal, a target communication mode from at least two communication modes according to a transmission configuration of a first signal; and transmitting, by the terminal, the first signal using the target communication mode.

[0007] In a second aspect, a method for transmitting signal is provided, comprising: transmitting, by a network side device, a transmission configuration of a first signal, the transmission configuration of the first signal being used to instruct a terminal to select a target communication mode from at least two communication modes.

[0008] In a third aspect, a device for transmitting signal is provided, comprising: a processing module configured to select a target communication mode from at least two communication modes according to a transmission configuration of a first signal; and a transmission module configured to transmit the first signal using the target communication mode.

[0009] In a fourth aspect, a device for transmitting signal is provided, comprising: a transmission module configured to transmit a transmission configuration of a first signal, the transmission configuration of the first signal being used to instruct a terminal to select a target communication mode from at least two communication modes.

[0010] In a fifth aspect, a device for transmitting signal is provided, the device being configured to perform the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

[0011] In a sixth aspect, a terminal is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the method according to the first aspect.

[0012] In a seventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to select a target communication mode from at least two communication modes according to a transmission configuration of a first signal, and the communication interface is configured to transmit the first signal using the target communication mode.

[0013] In an eighth aspect, a network-side device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the method according to the second aspect.

[0014] In a ninth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to transmit a transmission configuration of a first signal, the transmission configuration of the first signal being configured to instruct a terminal to select a target communication mode from at least two communication modes.

[0015] In a tenth aspect, a readable storage medium is provided, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implement steps of the method according to the first aspect, or implement steps of the method according to the second aspect.

[0016] In an eleventh aspect, a wireless communication system is provided, comprising a terminal and a network-side device, the terminal being configured to implement steps of the method according to the first aspect, and the network-side device being configured to implement steps of the method according to the second aspect.

[0017] In a twelfth aspect, a chip is provided, comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute programs or instructions to implement the method according to the first aspect, or implement the method according to the second aspect.

[0018] In a thirteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the method according to the first aspect, or implement the method according to the second aspect.

[0019] In the embodiment of the present application, the terminal can select a target communication mode from at least two communication modes according to the transmission configuration of the first signal, and transmit the first signal using the target communication mode, thereby solving the problem that the terminal with at least two communication modes cannot perform signal transmission, and improving the performance of the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0021] FIG. 2 is a schematic flowchart of a signal transmission method according to an embodiment of the present application;

[0022] FIG. 3 is a schematic flowchart of a signal transmission method according to an embodiment of the present application;

[0023] FIG. 4 is a schematic diagram of the structure of a signal transmission apparatus according to an embodiment of the present application;

[0024] FIG. 5 is a schematic diagram of the structure of a signal transmission apparatus according to an embodiment of the present application;

[0025] FIG. 6 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0026] FIG. 7 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

[0027] FIG. 8 is a schematic diagram of the structure of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0029] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0031] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0032] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0033] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0034] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by a plurality of devices jointly, and the embodiments of the present application do not make a limitation on this. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a dedicated hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0035] The signal transmission method provided by the embodiments of the present application will be described in detail below in combination with the drawings and some embodiments and application scenarios.

[0036] As shown in FIG. 2, the embodiments of the present application provide a signal transmission method 200, which can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal, and the method comprises the following steps.

[0037] S202: The terminal selects a target communication mode from at least two communication modes according to the sending configuration of the first signal.

[0038] The terminal mentioned in various embodiments of the present application can integrate at least two communication modes internally, and at least two communication modes exist at least one independent component in the physical layer, such as a radio frequency front end, an antenna, and a baseband, and all devices can be completely independent. The at least two communication modes can also be expressed as at least two power levels, at least two sending modes, at least two transmission modes, at least two communication devices, at least two sending modes, at least two sending modules, such as a high-power communication module and a low-power communication module, etc.

[0039] In addition to the high-power communication module (or high-power communication mode) and the low-power communication module (or low-power communication mode), the above-mentioned at least two communication modes can also be other distinguishing points, such as high frequency band, low frequency band, high speed, low speed, etc., and other possible combinations are not excluded. The following embodiments are applicable to all terminals with at least two communication modules or one communication module with at least two communication modes. In addition, multiple communication modules can correspond to multiple communication modes respectively, therefore, in the following embodiments, the communication module and the communication mode have the same meaning.

[0040] In one embodiment, the content indicated in the sending configuration of the first signal includes, for example: resources for sending the first signal; whether the first signal is repeatedly transmitted or retransmitted; the communication mode used in each of the multiple repeated transmissions or multiple retransmissions; and the terminal uses the high-power communication mode at least once in the multiple repeated transmissions or multiple retransmissions of the first signal, etc.

[0041] In an embodiment, the transmission configuration of the first signal can be transmitted by the network-side device; or, the transmission configuration of the first signal can also be predefined, such as agreed by a protocol; or, part of the transmission configuration of the first signal is predefined, and the rest of the transmission configuration is indicated by the network-side device.

[0042] S204: The terminal transmits the first signal using the target communication mode.

[0043] In various embodiments of the present application, the first signal can be an uplink signal or channel. For example, the first uplink signal can be transmitted by the terminal before successfully accessing the network, and can be any possible uplink signal before the terminal successfully receives the target downlink signal transmitted by the network side for the first time, such as a physical random access channel (PRACH); or, the first uplink signal can be the first step of uplink signal transmission in the random access process in other scenarios, such as Msg1, MsgA (triggering the network side to transmit Msg2, MsgB); or, the first uplink signal can be other uplink signals that can trigger the network side to transmit the target downlink signal, such as an uplink wake-up signal that wakes up the network side, a sounding reference signal (SRS), etc., such as triggering the physical layer to transmit on-demand SSB, system information blocks (SIB), etc. The first signal can also be a signal or channel in a sidelink, etc.

[0044] The signal transmission method provided by the embodiments of the present application can enable the terminal to select a target communication mode from at least two communication modes according to the transmission configuration of the first signal, and transmit the first signal using the target communication mode, thereby solving the problem that the terminal with at least two communication modes cannot perform signal transmission, and improving the performance of the communication system.

[0045] In an embodiment, the terminal transmits the first signal using the target communication mode includes one of the following:

[0046] Case 1: In the case where the target communication mode is one, the terminal transmits the first signal at least once using the one target communication mode; wherein the first signal transmitted multiple times can be repeated transmission of the first signal, or retransmission of the first signal, and the subsequent cases are similar.

[0047] Case 2: In the case where the target communication mode is at least two, the terminal transmits the first signal at least once using the at least two target communication modes in a time-division manner, and each target communication mode can transmit the first signal at least once.

[0048] Case 3: In the case that the target communication mode is at least two, the terminal uses the at least two target communication modes to respectively transmit the first signal at least once in a time domain partially overlapping or completely overlapping manner, and each target communication mode can transmit the first signal at least once.

[0049] The above-mentioned case 1 and case 2 do not require at least two communication modes to work simultaneously, and thus are applicable to all cases where multiple communication modes share or do not share devices; case 3 requires at least two communication modes to work simultaneously, and which communication modes can work simultaneously depends on the capability of the terminal (such as the device sharing situation of each communication mode) and the configuration of the network side (such as which resources the network side supports to receive signals simultaneously).

[0050] From the perspective of the terminal as a whole, the first signal in case 1 can be single transmission or repeated transmission, while cases 2 and 3 are repeated transmission.

[0051] For cases 2 and 3, there is a case that according to the configuration or agreement, the at least two communication modes selected by the terminal need to respectively transmit the uplink signal at least once, but due to some reasons, such as the successful reception of the downlink signal returned by the network side (such as the acknowledgement of the first signal), or the terminal power consumption or hardware limitation, etc., the first signal that should be transmitted by some communication modes is cancelled, which also falls within the protection scope of the present application.

[0052] The following embodiments will introduce the content related to the transmission configuration of the first signal.

[0053] For example, the first signal is PRACH, and PRACH is the first uplink signal transmitted by the terminal in the access process, and thus the terminal can determine the transmission configuration of the first signal through some methods.

[0054] In an embodiment, before the terminal transmits the first signal using the target communication mode, the method further comprises: the terminal obtaining the transmission configuration of the first signal, and the transmission configuration of the first signal can comprise at least one of the following:

[0055] 1) The target communication mode. The target communication mode can comprise one or more communication modes, and multiple communication modes can also be referred to as a communication mode set or a communication mode group.

[0056] 2) Whether the first signal is repeated transmission or retransmission.

[0057] 3) The resource, signal format or correspondence with the target communication mode of the single transmission of the first signal.

[0058] The above-mentioned resource includes at least one of a time domain resource, a frequency domain resource, and a code domain resource. For example, the first signal is a PRACH, and the time domain resource of the PRACH includes, for example, a time domain starting position of a random access occasion (RO); the frequency domain resource of the PRACH includes, for example, a frequency domain starting position of the RO; and the code domain resource of the PRACH includes, for example, a sequence set of a preamble, a sequence set of an orthogonal cover code (OCC), and the like.

[0059] The above-mentioned signal format includes, for example, a cyclic prefix (CP) format or length, a subcarrier spacing (SCS), a format, a sequence (set), a waveform, a transmission power (including an initial transmission power, a target transmission power, a power ramping step, and the like) of the PRACH, and the like. If the first signal is a signal other than the PRACH (another general uplink signal), the above-mentioned signal format can further include a demodulation reference signal (DMRS) configuration, such as a DMRS port, a DMRS pattern, a modulation and coding scheme (MCS), and the like.

[0060] 4) a correspondence relationship between the resource, the signal format of each transmission of the first signal in the repeated transmission or the retransmission, and the target communication mode.

[0061] The resource and the signal format in this example can be referred to the description in 3).

[0062] For the repeated transmission or the retransmission of the first signal (including single-communication-mode repeated transmission or retransmission and multi-communication-mode repeated transmission or retransmission), the transmission configuration of the first signal can be configured individually for each communication mode and then associated or jointly configured, or configured individually for each transmission and then associated or jointly configured.

[0063] In one embodiment, the transmission configuration of the first signal is configured individually for each communication mode or for each transmission in the repeated transmission or the retransmission, and there is an association relationship between multiple configurations of the same repeated transmission or retransmission of the first signal.

[0064] For example, each transmission of the first signal or each communication mode of the first signal is configured individually, but multiple repeated transmissions or retransmissions of the same first signal are associated.

[0065] The embodiment is configured in a separate manner, which is more flexible; meanwhile, by indicating that there is an association relationship between multiple configurations, it is beneficial for the sending end (the terminal) and the receiving end (such as a network side device or another terminal) to determine the same first signal, and beneficial for effective transmission of the first signal.

[0066] In another embodiment, the repeated transmission or retransmission of the same first signal is jointly configured.

[0067] For example, the joint configuration belongs to multiple repeated transmissions or retransmissions of the same first signal, such as considering all possible repeated transmissions or retransmissions when configuring time domain, frequency domain or code domain resources, signal formats, and target communication modes.

[0068] The embodiment is configured in a separate manner, which is more flexible; meanwhile, by indicating that there is an association relationship between multiple configurations, it is beneficial for the sending end (the terminal) and the receiving end (such as a network side device or another terminal) to determine the same first signal, and beneficial for effective transmission of the first signal.

[0069] In one embodiment, the terminal obtaining the transmission configuration of the first signal comprises: the terminal obtaining the transmission configuration of the first signal by at least one of the following manners:

[0070] 1) receiving a broadcast message or a system message, wherein the broadcast message or the system message comprises the transmission configuration of the first signal.

[0071] In this example, the network side device can indicate the transmission configuration of the first signal to the terminal in a broadcast message or a system message, wherein the network side device can send the broadcast message in a current serving cell or a neighbor cell. The broadcast message refers to all possible messages that the network can send to the terminal before the terminal sends the first signal, including but not limited to a synchronization signal and a PBCH block (SSB), a master information block (MIB), a system information block (SIB), a paging message, etc.

[0072] 2) a predefined manner, wherein the transmission configuration of the first signal is predefined.

[0073] In this example, the sending end (the terminal) and the receiving end (such as a network side device or another terminal) can pre-agree the transmission configuration of the first signal, and the sending end and the receiving end respectively send and receive according to the pre-agreed first configuration.

[0074] 3) the capability or state of the terminal.

[0075] In this example, the capability or status of the terminal includes, for example, the current working condition of the terminal, the working condition or Key Performance Indicator (KPI) of at least two communication modes of the terminal, such as supported frequency bands, power consumption or power level, reliability, latency, and the like, which will be described in detail later.

[0076] 4) A first rule for the terminal to determine the transmission configuration of the first signal.

[0077] The first rule includes, for example, determining the communication mode that cannot be used or is allowed to be used according to at least one of the following: the terminal feature or KPI currently required to be used or supported by the terminal, and the working condition or KPI of the communication mode. The KPI mentioned in various embodiments of the present application can include, but is not limited to, rate, delay, reliability (such as bit error rate, block error rate), power consumption (maximum or minimum), transport block size (TBS) (maximum or minimum), and the like.

[0078] 5) The communication requirement of the current service of the terminal.

[0079] The communication requirement of the current service of the terminal includes, for example, large traffic or high reliability service, and the like.

[0080] 6) The condition for triggering the first signal.

[0081] The condition for triggering the first signal includes, for example, acquiring a SIB, requesting to send a resource when an uplink resource is insufficient, and the like.

[0082] This embodiment facilitates the terminal to acquire the transmission configuration of the first signal by at least one of the above 1) to 6), and further realizes effective transmission of the first signal.

[0083] In one embodiment, the capability or status of the terminal mentioned above includes at least one of the following:

[0084] 1) A terminal feature (UE feature) related to the communication mode of the terminal, which is associated with a resource for transmitting the first signal.

[0085] This embodiment can define a terminal feature related to the communication mode of the terminal, which is associated with a certain transmission resource (such as a PRACH resource).

[0086] The terminal feature can be combined with other terminal features to form a feature combination, and is associated with a group of transmission resources (such as PRACH resources). The terminal can determine whether to select the group of transmission resources to transmit the first signal in the corresponding communication mode based on its own capability.

[0087] 2) the terminal features or Key Performance Indicators (KPIs) that the terminal currently needs to use.

[0088] The terminal features that the terminal currently needs to use include, for example, Ultra Reliable Low Latency Communications (URLLC), Non-Terrestrial Networks (NTN), frequency bands used, early PRACH, and the KPIs that the terminal currently needs to use can be related to rate, spectral efficiency, Transport Block Size (TBS), etc.

[0089] For example, before waking up the first communication mode (such as a high-power or high-performance communication mode), the terminal sends a first signal to the network side device using the second communication mode (such as an extremely low-power communication mode), and then communicates with the network side using the first communication mode. At least one of the power consumption, KPI, power, or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

[0090] 3) the current working condition of the terminal, such as whether the measurement quantity of a downlink signal is greater than or less than a threshold.

[0091] 4) whether the terminal supports using at least two of the communication modes, and of course, the terminal in each embodiment of the present application supports using at least two of the communication modes.

[0092] 5) the working conditions or KPIs of the at least two communication modes of the terminal, such as the supported frequency bands, power consumption or power, reliability, latency, etc.

[0093] 6) whether the at least two communication modes of the terminal support being used simultaneously. For example, when communication mode 1 is working, communication modes 2 and 3 cannot work; or when communication mode 1 is not working, communication modes 2 and 3 can work simultaneously.

[0094] 7) the combination of the at least two communication modes of the terminal that support being used simultaneously. For example, when communication mode 1 is working, communication modes 2 and 3 cannot work; or when communication mode 1 is not working, communication modes 2 and 3 can work simultaneously.

[0095] 8) the location of the terminal in a cell. For example, a terminal located at the edge of a cell can use a high-power communication mode.

[0096] In one embodiment, the terminal can also inform the network side device of its own capability, for example, by binding a specific preamble with a specific terminal capability, or by other means (e.g. in the device registration process) before sending the first signal. At this time, since the network side device has prior information about the terminal capability, the number of configurations that need to be monitored for the first signal can be reduced, and the complexity of the network side device can be reduced.

[0097] In one embodiment, the first rule mentioned above includes at least one of the following:

[0098] 1) If the terminal supports using at least two communication modes for communication, the terminal performs the step of selecting a target communication mode from the at least two communication modes.

[0099] For example, if the terminal supports using at least two communication modes for communication, it can continue to match other rules and determine the target communication mode in the next step.

[0100] 2) If the terminal does not support using at least two communication modes for communication, the terminal transmits the first signal in a legacy manner.

[0101] For example, if the terminal does not support using at least two communication modes for communication, it selects a legacy mode for the transmission of the first signal.

[0102] 3) Determine the communication modes that cannot be used or are allowed to be used according to at least one of the following: terminal features or KPIs currently required to be used or supported by the terminal, and working conditions or KPIs of the communication modes.

[0103] For example, when the terminal feature required to be used by the terminal is NTN, a communication mode with low transmission power may not meet the link budget requirement and cannot be used.

[0104] For another example, when the terminal needs to use a target frequency band, a communication mode that cannot work in the target frequency band can also be excluded.

[0105] 4) Determine the set of available communication modes according to at least one combination of the at least two communication modes that can be used simultaneously.

[0106] 5) Select a set from the set of available communication modes according to the terminal features or KPIs currently required to be used by the terminal.

[0107] The terminal in this example can also determine other transmission configurations of the first signal. The other transmission configurations can be pre-agreed or configured, for example, the target communication mode is associated with the configuration of transmission resource, repeated transmission or retransmission transmission, etc. When the target communication mode is activated, the corresponding transmission resource is activated. For another example, the network side device configures multiple configurations for the terminal, and the terminal selects one from the multiple configurations according to the terminal features or KPIs required at present. At this time, the network side device needs to receive the first signal according to its own implementation, such as simultaneously listening to the first signal transmitted by the terminal in multiple configurations.

[0108] In one embodiment, when the communication requirement of the current service includes at least one of the following, the transmission configuration of the first signal includes the target communication mode as the first communication mode (high-power consumption or high-performance communication mode):

[0109] 1) The service feature of the current service meets the first condition, for example, the current service is a large flow or high reliability service.

[0110] 2) The payload size of the target receiving or transmitting physical channel meets the second condition, such as being greater than a certain threshold.

[0111] Wherein, at least one of the power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode (such as an ultra-low power consumption communication mode), and the first communication mode and the second communication mode are included in the at least two communication modes.

[0112] In this embodiment, the first communication mode has higher power consumption, KPI, power or reliability, which is beneficial to improve the transmission quality of the first signal.

[0113] For example, when the current service requirement of the terminal is a large flow or high reliability service, the terminal can determine to transmit the first signal in the high-power consumption or high-performance communication mode and perform the subsequent communication process, including the transmission of Msg2, the reception of Msg3, etc.

[0114] For example, when the payload size of the target receiving or transmitting physical channel is greater than a certain threshold, the terminal can also determine to transmit the first signal in the high-power consumption or high-performance communication mode and perform the subsequent communication process.

[0115] Generally, the first communication mode has higher rate, spectrum efficiency, but also higher power consumption, which will reduce the terminal's endurance if it is turned on for a long time, and is suitable for transmitting a large amount of data in a short time; while the second communication mode is the opposite, which has lower rate, spectrum efficiency, but very low power consumption, and is suitable for transmitting a small amount of data for a long time, or for monitoring control plane signaling to avoid or reduce the additional delay caused by discontinuous reception (DRX).

[0116] In one embodiment, the conditions for triggering the first signal include at least one of the following: receiving a physical downlink control channel (PDCCH) command, receiving a paging message, acquiring a SIB, requesting to send resources due to resource shortage, receiving a scheduling request (SR), receiving a specific media access control control element (MAC CE), radio link failure (RLF), and beam failure recovery (BFR).

[0117] In this embodiment, each condition for triggering the first signal is associated or preferentially associated with at least one transmission configuration of the first signal, for example, the first signal for acquiring a SIB is preferentially transmitted in the second communication mode (such as the ultra-low power consumption communication mode).

[0118] This embodiment can also be combined with the previous embodiments, for example, when a terminal receives a mobile terminated (MT) service due to receiving a paging message and the service is a small data service, the terminal can use the second communication mode (such as the ultra-low power consumption communication mode) to complete the transmission of the first signal and subsequent data transmission.

[0119] In the retransmission of the first signal, the terminal can fallback to a legacy mechanism to transmit the first signal, and the legacy mechanism is that the terminal communicates through a single communication mode, which is referred to as a third communication mode here, and the third communication mode is included in the at least two communication modes of the terminal.

[0120] In one embodiment, the method further includes: in the case that at least one of the following conditions is met, the terminal falls back to using the third communication mode to transmit the first signal:

[0121] 1) the number of failures of sending the first signal using the target communication mode satisfies a first threshold condition, e.g., is greater than a certain threshold.

[0122] For example, when the number of failures of sending the first signal using at least two communication modes or in a certain communication mode exceeds a certain threshold, the terminal can fall back to a traditional mechanism to send the first signal, using a third communication mode to send the first signal.

[0123] Optionally, at least one of the above-mentioned first threshold condition, the third communication mode and the sending configuration of the first signal can be indicated by the network side device to the terminal through a broadcast message (such as MIB, SIB); it can also be predefined, such as agreed by the protocol.

[0124] 2) the measurement quantity of the downlink second signal satisfies a second threshold condition, e.g., the measurement quantity of the downlink second signal is greater than or equal to a certain threshold.

[0125] For example, when the measurement quantity of the Synchronization Signal-Reference Signal Receiving Power (SS-RSRP), Reference Signal Receiving Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR) of the SSB of the target cell is less than a certain threshold, the terminal can fall back to a traditional mechanism to send the first signal, using a third communication mode to send the first signal.

[0126] Optionally, at least one of the above-mentioned second threshold condition, the third communication mode and the sending configuration of the first signal can be indicated by the network side device to the terminal through a broadcast message (such as MIB, SIB); it can also be predefined, such as agreed by the protocol.

[0127] 3) the location of the terminal satisfies a second condition,

[0128] For example, the terminal judges itself to be located in a rural or macro station coverage area based on the coordinates returned by the Global Navigation Satellite System (GNSS), and the terminal can fall back to a traditional mechanism to send the first signal, using a third communication mode to send the first signal.

[0129] Optionally, at least one of the second condition, the third communication mode and the transmission configuration of the first signal can be indicated by the network side device to the terminal through a broadcast message (such as MIB, SIB); or can be predefined, such as agreed by a protocol.

[0130] In one embodiment, in the case where the terminal reverts to using the third communication mode to transmit the first signal, the power ramp-up value of the first signal is one of the following:

[0131] 1) Inherit the first power ramp-up value when using the target communication mode.

[0132] 2) A power ramp-up value based on the first power ramp-up value, the first power ramp-up value being a power ramp-up value when using the target communication mode.

[0133] 2) A reset power ramp-up value.

[0134] In order to improve reliability, the first signal can adopt repeated transmission or retransmission transmission, and the configuration related to the repeated transmission or retransmission transmission of the first signal is described in the transmission configuration of the first signal in the foregoing embodiments. The following embodiment groups mainly focus on how to use the repeated transmission or retransmission transmission of the first signal.

[0135] In one embodiment, the terminal selects a target communication mode from at least two communication modes according to the transmission configuration of the first signal, including:

[0136] 1) The terminal selects a target communication mode from at least two communication modes according to the number of repeated transmissions of the first signal, and the transmission configuration of the first signal includes the number of repeated transmissions of the first signal.

[0137] Optionally, the terminal selects a target communication mode from at least two communication modes according to the number of repeated transmissions of the first signal, including: in the case where the number of repeated transmissions of the first signal using the second communication mode by the terminal is greater than or equal to a first threshold value, the terminal selects a first communication mode; wherein at least one of the power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

[0138] For example, when the terminal judges that the number of repeated transmissions using the second communication mode is greater than or equal to the first threshold value, the terminal can select the first communication mode with high power or high reliability to perform one-time transmission of the first signal, thereby reducing communication delay and actual energy consumption

[0139] The first threshold value can be indicated by the network to the terminal through a broadcast message (such as MIB, SIB) or predefined.

[0140] 2) the terminal selects a target communication mode from at least two communication modes according to the multiple repeated transmissions or multiple retransmission transmissions of the first signal; wherein the transmission configuration of the first signal comprises the communication modes used in the multiple repeated transmissions or multiple retransmission transmissions respectively.

[0141] Optionally, the transmission configuration of the first signal further comprises: using the first communication mode at least once in the repeated transmissions of the first signal; wherein at least one of the power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

[0142] For example, the network can configure different or independent communication modes to be used in the multiple repeated transmissions or retransmission transmissions respectively. For example, a high-power or high-reliability communication mode is used at least once in the multiple repeated transmissions to determine whether the power climbing mechanism is effective in the current network environment.

[0143] As a sub-embodiment of this embodiment, the mode of the transmission mode of the repeated transmissions or retransmission transmissions of the first signal can be configured by the network or specified by the protocol. For example, the mode of the transmission mode of the multiple repeated transmissions or retransmission transmissions is configured, such as even-numbered times for high-power consumption and odd-numbered times for low-power consumption mode; or vice versa. For example, the mode of the transmission mode of the multiple repeated transmissions or retransmission transmissions is configured as a bitmap, 0 represents low-power mode and 1 represents high-power mode transmission.

[0144] The above embodiments of the present application can enable the terminal device with at least two communication modes to complete the transmission of the first signal, and propose multiple ways of transmitting the first signal using multiple communication modules; and the corresponding acquisition method of the transmission configuration; and how to fall back to the conventional first signal transmission method. In particular, for the terminal low-rate scenario or the case of low-power transmission, the power consumption of the terminal can be greatly reduced. In addition, the method of repeated transmission or retransmission transmission is also considered to improve the reliability and consider the association relationship with the transmission mode and the communication mode, which is particularly suitable for the terminal in a limited coverage situation.

[0145] The signal transmission method according to the embodiments of the present application is described in detail above in combination with FIG. 2. The signal transmission method according to another embodiment of the present application will be described in detail below in combination with FIG. 3. It can be understood that the network side device described from the network side device and the interaction with the terminal are the same as or corresponding to the description of the terminal side in the method shown in FIG. 2, and the relevant description is appropriately omitted to avoid repetition.

[0146] FIG. 3 is a flow diagram illustrating a method for transmitting a signal according to an embodiment of the present application, which can be applied to a network side device. As shown in FIG. 3, the method 300 includes the following steps.

[0147] S302: The network side device transmits a transmission configuration of the first signal, where the transmission configuration of the first signal is used to instruct the terminal to select a target communication mode from at least two communication modes.

[0148] Optionally, after S302, the method further includes the following step: the network side device receives the first signal.

[0149] According to the embodiments of the present application, the network side device transmits a transmission configuration of the first signal, where the transmission configuration of the first signal is used to instruct the terminal to select a target communication mode from at least two communication modes. In this way, the terminal can select a target communication mode from at least two communication modes according to the transmission configuration of the first signal, and transmit the first signal using the target communication mode. Thus, the problem that the terminal cannot transmit a signal when there are at least two communication modes is solved, and the performance of the communication system is improved.

[0150] In one embodiment, the transmission configuration of the first signal includes at least one of the following:

[0151] 1) the target communication mode.

[0152] 2) whether the first signal is repeatedly transmitted or retransmitted.

[0153] 3) a correspondence between a resource, a signal format of a single transmission of the first signal, or the target communication mode.

[0154] 4) a correspondence between a resource, a signal format of each transmission of the first signal in repeated transmission or retransmission, or the target communication mode.

[0155] The resource includes at least one of a time domain resource, a frequency domain resource, and a code domain resource.

[0156] The signal transmission method provided by the embodiments of the present application can be executed by a signal transmission device. In the embodiments of the present application, the signal transmission method is executed by a signal transmission device as an example, and the signal transmission device provided by the embodiments of the present application is described.

[0157] The embodiments of the present application provide a signal transmission device. As an example, the signal transmission device can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network side device, a server, or the like. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application are not limited in this regard.

[0158] The signal transmission apparatus includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor, which can include a general-purpose processor, a special-purpose processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0159] Specifically, referring to FIG. 4, when the signal transmission apparatus is a terminal or a component in the terminal, the signal transmission apparatus 400 includes the following modules.

[0160] The processing module 402 is configured to select a target communication mode from at least two communication modes according to a sending configuration of a first signal.

[0161] The transmission module 404 is configured to send the first signal by using the target communication mode.

[0162] In the embodiments of the present application, the terminal can select a target communication mode from at least two communication modes according to a sending configuration of a first signal, and send the first signal by using the target communication mode, thereby solving the problem that a terminal with at least two communication modes cannot perform signal transmission, and improving the performance of a communication system.

[0163] In one embodiment, the transmission module 404 is configured to perform one of the following:

[0164] 1) when the target communication mode is one, send the first signal at least once by using the one target communication mode.

[0165] 2) when the target communication mode is at least two, send the first signal at least once by using the at least two target communication modes in a time-division manner, respectively.

[0166] 3) in case that the target communication mode is at least two, using the at least two target communication modes to transmit the first signal at least once respectively in a time domain partially or completely overlapped manner.

[0167] In an embodiment, the transmission module 404 or the processing module 402 is further configured to obtain a transmission configuration of the first signal, the transmission configuration of the first signal comprising at least one of:

[0168] 1) the target communication mode.

[0169] 2) whether the first signal is repeatedly transmitted or retransmitted.

[0170] 3) a correspondence between a resource, a signal format of a single transmission of the first signal and the target communication mode.

[0171] 4) a correspondence between a resource, a signal format of each transmission of the first signal in repeated transmission or retransmission and the target communication mode.

[0172] wherein the resource comprises at least one of a time domain resource, a frequency domain resource and a code domain resource.

[0173] In an embodiment, the transmission module 404 or the processing module 402 is configured to obtain the transmission configuration of the first signal by at least one of:

[0174] 1) receiving a broadcast message or a system message, the broadcast message or the system message comprising the transmission configuration of the first signal.

[0175] 2) a predefined manner, the transmission configuration of the first signal being predefined.

[0176] 3) a capability or a status of the apparatus.

[0177] 4) a first rule for the apparatus to determine the transmission configuration of the first signal.

[0178] 5) a communication requirement of a current service of the apparatus.

[0179] 6) a condition triggering the first signal.

[0180] In an embodiment, the transmission module 404 is further configured to fallback to transmit the first signal using a third communication mode in case that at least one of:

[0181] 1) a number of failures of transmitting the first signal using the target communication mode satisfies a first threshold condition.

[0182] 2) a measurement quantity of a second signal in a downlink satisfies a second threshold condition.

[0183] 3) a location of the apparatus satisfies a second condition.

[0184] The third communication mode is included in the at least two communication modes.

[0185] In an embodiment, the processing module 402 is configured to: select a target communication mode from the at least two communication modes according to a number of repeated transmissions of the first signal, wherein the transmission configuration of the first signal comprises the number of repeated transmissions of the first signal; or select a target communication mode from the at least two communication modes according to a number of repeated transmissions or a number of retransmission transmissions of the first signal, wherein the transmission configuration of the first signal comprises a communication mode used in each of the number of repeated transmissions or the number of retransmission transmissions.

[0186] In an embodiment, the processing module 402 is configured to: select a first communication mode when a number of repeated transmissions using a second communication mode is greater than or equal to a first threshold, wherein at least one of power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

[0187] Referring to FIG. 5, when the signal transmission apparatus is a network-side device or a component in the network-side device, the signal transmission apparatus 500 comprises a transmission module 502 configured to send a transmission configuration of a first signal, wherein the transmission configuration of the first signal is used to instruct a terminal to select a target communication mode from at least two communication modes.

[0188] In the embodiments of the present application, the network-side device can send a transmission configuration of a first signal, wherein the transmission configuration of the first signal is used to instruct a terminal to select a target communication mode from at least two communication modes. In this way, the terminal can select a target communication mode from at least two communication modes according to the transmission configuration of the first signal, and send the first signal using the target communication mode, thereby solving the problem that a terminal with at least two communication modes cannot perform signal transmission, and improving the performance of a communication system.

[0189] In an embodiment, the transmission configuration of the first signal comprises at least one of the following:

[0190] 1) the target communication mode.

[0191] 2) whether the first signal is repeatedly transmitted or retransmitted.

[0192] 3) a resource, a signal format of a single transmission of the first signal, or a correspondence relationship with the target communication mode.

[0193] 4) a resource, a signal format, or a correspondence relationship with the target communication mode of each transmission of the first signal repeated transmission or retransmission transmission.

[0194] The resource includes at least one of a time domain resource, a frequency domain resource, and a code domain resource.

[0195] The signal transmission device provided by the embodiments of the present application can implement each process implemented by the method embodiments of FIGS. 2 to 3, and achieve the same technical effects. To avoid repetition, details are not described here.

[0196] As shown in FIG. 6, the embodiments of the present application also provide a communication device 600, which includes a processor 601 and a memory 602, and the memory 602 stores programs or instructions executable on the processor 601. For example, when the communication device 600 is a terminal, the programs or instructions are executed by the processor 601 to implement each step of the above signal transmission method embodiments, and the same technical effects can be achieved. When the communication device 600 is a network side device, the programs or instructions are executed by the processor 601 to implement each step of the above signal transmission method embodiments, and the same technical effects can be achieved. To avoid repetition, details are not described here.

[0197] The embodiments of the present application also provide a terminal, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps in the method embodiments as shown in FIG. 2. The terminal embodiment corresponds to the above terminal side method embodiment, and each implementation process and implementation manner of the above method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. The terminal can be the signal transmission device shown in FIG. 4. Specifically, FIG. 7 is a hardware structure schematic diagram of a terminal for implementing the embodiments of the present application.

[0198] The terminal 700 includes but is not limited to at least part of the components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0199] Those skilled in the art can understand that the terminal 700 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected with the processor 710 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than the illustrated, or combine certain components, or different component arrangements, which are not described here.

[0200] It should be understood that in the embodiments of the present application, the input unit 704 can include a graphics processor 7041 and a microphone 7042, and the graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0201] In the embodiments of the present application, after the radio frequency unit 701 receives the downlink data from the network side device, it can be transmitted to the processor 710 for processing. In addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0202] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0203] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0204] The processor 710 is configured to select a target communication mode from at least two communication modes according to a sending configuration of a first signal; and the radio frequency unit 701 is configured to send the first signal using the target communication mode.

[0205] The terminal can select a target communication mode from at least two communication modes according to the transmission configuration of the first signal, and transmit the first signal by using the target communication mode, thereby solving the problem that the terminal cannot perform signal transmission when there are at least two communication modes, and improving the performance of the communication system.

[0206] It can be understood that the implementation processes of the implementation manners mentioned in the embodiments can refer to the related descriptions of the signal transmission method embodiments, and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0207] The embodiments of the application further provide a network side device, including a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running programs or instructions, and the steps of the method embodiments shown in FIG. 3 are implemented. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the above method embodiments can be applied to the network side device embodiment, and the same technical effects can be achieved.

[0208] Specifically, the embodiments of the application further provide a network side device, which can be the signal transmission apparatus shown in FIG. 5. As shown in FIG. 8, the network side device 800 includes an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected with the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81, and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent, and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0209] The method performed by the network side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0210] The baseband device 83 may, for example, include at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 8. One of the chips is, for example, a baseband processor, which is connected with the memory 85 through a bus interface to call programs in the memory 85 and perform the network device operations shown in the above method embodiments.

[0211] The network side device can further include a network interface 86, which is, for example, a common public radio interface (Common Public Radio Interface, CPRI).

[0212] Specifically, the network side device 800 of the embodiment of the present application further comprises instructions or programs stored on the storage 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the storage 85 to execute the method performed by each module shown in FIG. 5 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0213] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement each process of the signal transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0214] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0215] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the signal transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0216] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0217] The embodiment of the present application further provides a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement each process of the signal transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0218] The embodiment of the present application further provides a signal transmission system, including: a terminal and a network side device, the terminal can be used to execute the steps of the signal transmission method, and the network side device can be used to execute the steps of the signal transmission method.

[0219] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, software, or a combination thereof, and that the scope of the application is not limited to the specific order of execution of the steps described in the examples. In addition, features described in relation to certain examples can be combined in other examples.

[0220] From the above description of the embodiments, it is clear that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0221] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method for transmitting a signal, comprising: selecting, by a terminal, a target communication mode from at least two communication modes according to a transmission configuration of a first signal; and transmitting, by the terminal, the first signal using the target communication mode.

2. The method of claim 1, wherein, The transmitting, by the terminal, the first signal using the target communication mode comprises one of: in a case where the target communication mode is one, transmitting, by the terminal, the first signal at least once using the one target communication mode; in a case where the target communication mode is at least two, transmitting, by the terminal, the first signal at least once using the at least two target communication modes respectively in a time-division manner; and in a case where the target communication mode is at least two, transmitting, by the terminal, the first signal at least once using the at least two target communication modes respectively in a time-domain partially overlapping or completely overlapping manner.

3. The method of claim 1 or 2, wherein, Before the transmitting, by the terminal, the first signal using the target communication mode, the method further comprises: obtaining, by the terminal, the transmission configuration of the first signal, the transmission configuration of the first signal comprising at least one of: the target communication mode; whether the first signal is repeatedly transmitted or retransmitted; a correspondence between a resource, a signal format of a single transmission of the first signal, and the target communication mode; a correspondence between a resource, a signal format of each transmission of the first signal in repeated transmission or retransmission, and the target communication mode; and wherein the resource comprises at least one of a time-domain resource, a frequency-domain resource, and a code-domain resource. 4.The method of claim 3, wherein the transmission configuration of the first signal is configured separately for each of the communication modes or for each of the repeated transmission or retransmission, wherein there is a correlation between multiple configurations of the same repeated transmission or retransmission of the first signal; or the same repeated transmission or retransmission of the first signal is jointly configured. The obtaining, by the terminal, the transmission configuration of the first signal comprises:

5. The method of claim 3, wherein, The obtaining, by the terminal, the transmission configuration of the first signal comprises at least one of: receiving a broadcast message or a system message, the broadcast message or the system message comprising the transmission configuration of the first signal; a predefined manner, the transmission configuration of the first signal being predefined; a capability or a state of the terminal; a first rule for the terminal to determine the transmission configuration of the first signal; a communication requirement of a current service of the terminal; and a condition triggering the first signal. The capability or the state of the terminal comprises at least one of:

6. The method of claim 5, wherein, a terminal feature related to a communication mode of the terminal, the terminal feature being associated with a resource for transmitting the first signal; a terminal feature or a key performance indicator (KPI) currently required to be used by the terminal; a current working condition of the terminal; whether the terminal supports using at least two of the communication modes; a working condition or a KPI of at least two of the communication modes of the terminal; whether at least two of the communication modes of the terminal support being used simultaneously; a combination of at least two of the communication modes of the terminal supporting being used simultaneously; and a location of the terminal in a cell. ​ 7. The method of claim 5, wherein, The first rule comprises at least one of the following: If the terminal supports communication using at least two of the communication modes, the terminal performs the step of selecting the target communication mode from the at least two communication modes; If the terminal does not support communication using at least two of the communication modes, the terminal transmits the first signal using a legacy manner; The communication mode that cannot be used or is allowed to be used is determined according to at least one of the following: a terminal feature or KPI currently required to be used by the terminal or supported by the terminal, an operating condition or KPI of the communication mode; The set of available communication modes is determined according to a combination of at least two of the communication modes that are allowed to be used simultaneously; The set of available communication modes is selected from the set of available communication modes according to a terminal feature or KPI currently required to be used by the terminal.

8. The method of claim 5, wherein, In a case where the communication requirement of the current service comprises at least one of the following, the target communication mode comprised in the transmission configuration of the first signal is a first communication mode: A service feature of the current service satisfies a first condition; A load size of a target received or transmitted physical channel satisfies a second condition; Wherein at least one of power consumption, KPI, power or reliability of the first communication mode is higher than that of a second communication mode, the first communication mode and the second communication mode are comprised in the at least two communication modes.

9. The method of claim 5 or 8, wherein, The condition for triggering the first signal comprises at least one of the following: Receiving a physical downlink control channel (PDCCH) order, receiving a paging message, acquiring a system information block (SIB), requesting to send a resource due to insufficient resources, receiving a scheduling request, receiving a specific medium access control control element (MAC CE), radio link failure (RLF), and beam failure recovery (BFR).

10. The method of claim 9, wherein, Each condition for triggering the first signal is associated or preferentially associated with at least one transmission configuration of the first signal.

11. The method according to any one of claims 1 to 10, wherein, The method further comprises that, in a case where at least one of the following is satisfied, the terminal falls back to transmitting the first signal using a third communication mode: A number of failures of transmitting the first signal using the target communication mode satisfies a first threshold condition; A measurement quantity of a second signal in the downlink satisfies a second threshold condition; A location of the terminal satisfies a second condition; Wherein the third communication mode is comprised in the at least two communication modes.

12. The method of claim 11, wherein, In a case where the terminal falls back to transmitting the first signal using a third communication mode, a power ramping value of the first signal is one of the following: Inherits a first power ramping value when using the target communication mode; A power ramping value obtained based on a first power ramping value, the first power ramping value being a power ramping value when using the target communication mode; A reset power ramping value.

13. The method of any one of claims 1 to 12, wherein, The terminal selecting the target communication mode from the at least two communication modes according to the transmission configuration of the first signal comprises: The terminal selects the target communication mode from the at least two communication modes according to a number of repeated transmissions of the first signal, the transmission configuration of the first signal comprising the number of repeated transmissions of the first signal; or The terminal selects a target communication mode from at least two communication modes according to a number of repeated transmissions or retransmissions of the first signal; wherein the transmission configuration of the first signal comprises a communication mode used in each of the repeated transmissions or retransmissions.

14. The method of claim 13, wherein, The terminal selects a target communication mode from at least two communication modes according to a number of repeated transmissions of the first signal comprises: In a case where a number of repeated transmissions of the first signal by the terminal using the second communication mode is greater than or equal to a first threshold, the terminal selects the first communication mode; wherein at least one of power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

15. The method of claim 13, wherein, The transmission configuration of the first signal further comprises: In the repeated transmissions of the first signal, the first communication mode is used at least once; wherein at least one of power consumption, KPI, power or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

16. A signal transmission method comprising: a network-side device transmitting a transmission configuration of a first signal, the transmission configuration of the first signal being used to instruct a terminal to select a target communication mode from at least two communication modes.

17. The method of claim 16, wherein, The transmission configuration of the first signal comprises at least one of: the target communication mode; whether the first signal is repeatedly transmitted or retransmitted; a resource, a signal format or a correspondence with the target communication mode of a single transmission of the first signal; a resource, a signal format or a correspondence with the target communication mode of each transmission in repeated transmissions or retransmissions of the first signal; wherein the resource comprises at least one of a time domain resource, a frequency domain resource and a code domain resource.

18. A signal transmission apparatus comprising: a processing module configured to select a target communication mode from at least two communication modes according to a transmission configuration of a first signal; a transmission module configured to transmit the first signal using the target communication mode.

19. The apparatus of claim 18, wherein, The transmission module is configured to perform one of: in a case where the target communication mode is one, transmit the first signal at least once using the one target communication mode; in a case where the target communication mode is at least two, transmit the first signal at least once using the at least two target communication modes in a time-division manner respectively; and in a case where the target communication mode is at least two, transmit the first signal at least once using the at least two target communication modes in a time domain partially overlapping or completely overlapping manner respectively.

20. The apparatus of claim 18 or 19, wherein, The transmission module or the processing module is further configured to obtain the transmission configuration of the first signal, the transmission configuration of the first signal comprising at least one of: the target communication mode; whether the first signal is repeatedly transmitted or retransmitted; a resource, a signal format or a correspondence with the target communication mode of a single transmission of the first signal; a correspondence between each transmission of the repeated transmission or retransmission of the first signal and the target communication mode; wherein the resource comprises at least one of a time domain resource, a frequency domain resource, and a code domain resource.

21. The apparatus of claim 20, wherein, The transmission module or the processing module is configured to obtain the transmission configuration of the first signal by at least one of the following manners: receiving a broadcast message or a system message, wherein the broadcast message or the system message comprises the transmission configuration of the first signal; a predefined manner, wherein the transmission configuration of the first signal is predefined; a capability or a state of the apparatus; a first rule for the apparatus to determine the transmission configuration of the first signal; a communication requirement of a current service of the apparatus; a condition triggering the first signal.

22. The apparatus of any one of claims 18 to 21, wherein, The transmission module is further configured to fallback to use a third communication mode to transmit the first signal in a case that at least one of the following conditions is met: a number of failures of transmitting the first signal using the target communication mode meets a first threshold condition; a measurement of a second signal in downlink meets a second threshold condition; a location of the apparatus meets a second condition; wherein the third communication mode is included in the at least two communication modes.

23. The apparatus of any one of claims 18 to 22, wherein, The processing module is configured to: select the target communication mode from the at least two communication modes according to a number of times of repeated transmission of the first signal, wherein the transmission configuration of the first signal comprises the number of times of repeated transmission of the first signal; or select the target communication mode from the at least two communication modes according to a number of times of repeated transmission or retransmission of the first signal, wherein the transmission configuration of the first signal comprises a communication mode used in each of the number of times of repeated transmission or retransmission.

24. The apparatus of claim 23, wherein, The processing module is configured to select a first communication mode in a case that a number of times of repeated transmission using a second communication mode is greater than or equal to a first threshold value. wherein at least one of power consumption, KPI, power, or reliability of the first communication mode is higher than that of the second communication mode, and the first communication mode and the second communication mode are included in the at least two communication modes.

25. An apparatus for transmitting a signal, comprising: a transmission module configured to transmit a transmission configuration of a first signal, wherein the transmission configuration of the first signal is used to indicate a terminal to select a target communication mode from at least two communication modes.

26. The apparatus of claim 25, wherein, The transmission configuration of the first signal comprises at least one of: the target communication mode; whether the first signal is repeatedly transmitted or retransmitted; a correspondence between a resource, a signal format of a single transmission of the first signal, and the target communication mode; a correspondence between a resource, a signal format of each transmission of the repeated transmission or retransmission of the first signal, and the target communication mode; wherein the resource comprises at least one of a time domain resource, a frequency domain resource, and a code domain resource.

27. A terminal comprising a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement steps of the method according to any one of claims 1 to 15.

28. A network-side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implementing the steps of the method of claim 16 or 17.

29. A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implementing the method of any one of claims 1-15, or implementing the steps of the method of claim 16 or 17.

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