A signal transmission method, user equipment, and network equipment

Abstract

Embodiments of the present application relate to a signal transmission method, a user equipment, and a network equipment. The method includes: if an uplink transmission signal overlaps with a Synchronization Signal Block (SSB) in the time domain, a UE in High-Density Frequency Division Duplex (HD-FDD) transmits a target uplink transmission signal in the overlapping symbols of the uplink transmission signal, thereby improving the utilization rate of uplink resources; and / or if a downlink transmission signal overlaps with a valid Random Access Opportunity (valid RO) in the time domain, a UE in HD-FDD receives a target downlink transmission signal in the overlapping symbols of the downlink transmission signal, thereby improving the utilization rate of downlink resources.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and particularly to a signal transmission method, a user equipment, and a network equipment. Background Art

[0002] The 5th Generation Mobile Communication New Radio (5G NR) system can be deployed in unpaired spectrum or paired spectrum. When the NR system is deployed in paired spectrum, the system performs uplink transmission and downlink transmission on different frequency bands. Generally, both the network equipment and the User Equipment (UE) support Frequency Division Duplex (FDD) and can receive and send signals simultaneously.

[0003] With the development of communication technologies, a Reduced-Capability User Equipment (RedCap UE) that can reduce cost overhead has emerged. Even in the NR system of paired spectrum, the RedCap UE may be a Half Duplex Frequency Division Duplex (HD-FDD) user equipment, that is, the RedCap UE cannot receive and send signals simultaneously. For a HD-FDD UE, when it is configured or scheduled to receive an uplink signal and send a downlink signal simultaneously, a "collision" of uplink and downlink signals will occur. When the uplink and downlink signals of a HD-FDD UE overlap, it can only receive the uplink signal or only send the downlink signal. There is no specific solution on how to transmit uplink and downlink signals. Summary of the Invention

[0004] This application provides a signal transmission method, a user equipment, and a network equipment to solve the problem of how to transmit uplink and downlink signals when the uplink and downlink signals of a HD-FDD UE overlap.

[0005] In a first aspect, an embodiment of this application provides a signal transmission method applied to a HD-FDD UE. The method includes:

[0006] If an uplink transmission signal overlaps with a Synchronization Signal Block (SSB) in the time domain, then send a target uplink transmission signal in the overlapping symbols; and / or

[0007] If the downlink transmission signal overlaps with a valid Random Access Channel Occasion (valid RO) in the time domain, the target downlink transmission signal in the downlink transmission signal is received in the overlapping symbols.

[0008] In the above solution, since the above network device can simultaneously transmit the downlink transmission signal and receive the uplink transmission signal, the UE of HD-FDD still transmits the above target uplink transmission signal in the symbols where the uplink transmission signal overlaps with the SSB, thereby improving the utilization rate of uplink resources; the UE of HD-FDD still receives the above target downlink transmission signal in the symbols where the downlink transmission signal overlaps with the valid RO, thereby improving the utilization rate of downlink resources.

[0009] As an optional implementation manner, the target uplink transmission signal is determined by the following method:

[0010] Determine the target uplink transmission signal according to the first predefined rule; or

[0011] Determine the target uplink transmission signal according to the indication of the network device.

[0012] In the above solution, the UE of HD-FDD determines the target uplink transmission signal according to the first predefined rule or the indication of the network device, which is applicable to the requirements of different application scenarios.

[0013] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0014] Determine the dynamic uplink transmission signal as the target uplink transmission signal;

[0015] Determine the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0016] Determine the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0017] Determine some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0018] If it is not necessary to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signal;

[0019] Among them, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the downlink control information (DCI) sent by the network device, and the first preset type includes at least one of a physical uplink control channel (PUCCH), a physical random access channel (PRACH), and a physical uplink shared channel (PUSCH) carrying uplink control information (UCI).

[0020] In the above solution, according to the first predefined rule, the UE in HD-FDD can conveniently determine the target uplink transmission signal from the above uplink transmission signals. When the uplink transmission signal overlaps with the SSB in the time domain, the above UE can still send the above target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0021] As an optional implementation manner, determining the target uplink transmission signal according to an indication of the network device includes:

[0022] Determining the target uplink transmission signal according to the first indication information in the radio resource control (RRC) signaling or the media access control control element (MAC CE) sent by the network device.

[0023] In the above solution, by sending RRC signaling or MAC CE to the UE in HD-FDD, the network device can configure the target uplink transmission signal more flexibly. When the uplink transmission signal overlaps with the SSB in the time domain, the above UE can still send the above target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0024] As an optional implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0025] The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or

[0026] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0027] As an alternative implementation, determining the target uplink transmission signal according to an indication of a network device includes:

[0028] If the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates transmission, determining the dynamic uplink transmission signal as the target uplink transmission signal; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals overlapping with the SSB.

[0029] In the above solution, the network device dynamically indicates the target uplink transmission signal by sending DCI carrying the second indication information to the UE of HD-FDD, which is more applicable to scenarios where the UE repeatedly sends PUSCH, PUCCH, etc. When the uplink transmission signal overlaps with the SSB in the time domain, the above UE can still send the above target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0030] As an alternative implementation, the target downlink transmission signal is determined by the following method:

[0031] Determining the target downlink transmission signal according to a second predefined rule; or

[0032] Determining the target downlink transmission signal according to an indication of a network device.

[0033] In the above solution, the UE of HD-FDD determines the target downlink transmission signal according to the second predefined rule or an indication of the network device, which is applicable to the requirements of different application scenarios.

[0034] As an alternative implementation, the second predefined rule includes some or all of the following:

[0035] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0036] Determining the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0037] Determining the dynamic downlink transmission signal of a second preset type as the target downlink transmission signal;

[0038] Determining some or all of the dynamic downlink transmission signal and the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0039] If it is not necessary to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determining some or all of the downlink transmission signals as the target downlink transmission signals;

[0040] Among them, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes the Physical Downlink Control Channel (PDCCH).

[0041] According to the second predefined rule, the above solution can conveniently determine the target downlink transmission signal from the above downlink transmission signals. When the downlink transmission signal overlaps with the valid RO in the time domain, the above UE can still receive the above target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0042] As an optional implementation manner, determining the target downlink transmission signal according to the indication of the network device includes:

[0043] Determine the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0044] In the above solution, the network device can more flexibly configure the target downlink transmission signal by sending RRC signaling or MAC CE to the UE of HD-FDD. When the downlink transmission signal overlaps with the SSB in the time domain, the above UE can still receive the above target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0045] As an optional implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0046] The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or

[0047] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0048] As an optional implementation manner, determining the target downlink transmission signal according to the indication of the network device includes:

[0049] If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, then determine the dynamic downlink transmission signal as the target downlink transmission signal; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals overlapping with the valid RO.

[0050] In the above solution, the network device dynamically indicates the target downlink transmission signal by sending DCI carrying the fourth indication information to the UE of HD-FDD, which is more applicable to the scenario where the network device repeatedly sends PDSCH. When the downlink transmission signal overlaps with the SSB in the time domain, the above UE can still receive the above target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0051] In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to a network device. The method includes:

[0052] If the uplink transmission signal overlaps with the SSB in the time domain, receive the target uplink transmission signal in the uplink transmission signal sent by the UE of HD-FDD in the overlapping symbols; and / or

[0053] If the downlink transmission signal overlaps with the valid RO in the time domain, send the target downlink transmission signal in the downlink transmission signal to the UE of HD-FDD in the overlapping symbols.

[0054] As an optional implementation manner, the method further includes:

[0055] Determine the target uplink transmission signal according to the first predefined rule; or

[0056] Indicate the target uplink transmission signal to the UE.

[0057] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0058] Determine the dynamic uplink transmission signal as the target uplink transmission signal;

[0059] Determine the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0060] Determine the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0061] Determine some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0062] If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signal;

[0063] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0064] As an alternative implementation manner, indicating the target uplink transmission signal to the UE includes:

[0065] Sending RRC signaling or MAC CE carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information.

[0066] As an alternative implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0067] The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signals; or

[0068] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0069] As an alternative implementation manner, indicating the target uplink transmission signal to the UE includes:

[0070] Sending DCI carrying second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signals based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

[0071] As an alternative implementation manner, the method further includes:

[0072] Determining the target downlink transmission signal according to a second predefined rule; or

[0073] Indicating the target downlink transmission signal to the UE.

[0074] As an alternative implementation manner, the second predefined rule includes some or all of the following:

[0075] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0076] Determining the second preset type of downlink transmission signal as the target downlink transmission signal;

[0077] Determining the second preset type of dynamic downlink transmission signal as the target downlink transmission signal;

[0078] Determining some or all of the dynamic downlink transmission signal and the second preset type of downlink transmission signal as the target downlink transmission signal;

[0079] If the UE does not need to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, then determine some or all of the downlink transmission signals as the target downlink transmission signals;

[0080] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0081] As an optional implementation manner, indicating the target downlink transmission signal to the UE includes:

[0082] Sending an RRC signaling or a MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information.

[0083] As an optional implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0084] The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or

[0085] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0086] As an optional implementation manner, indicating the target downlink transmission signal to the UE includes:

[0087] Sending a DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signal based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI in the downlink transmission signals that overlap with the valid RO.

[0088] In a third aspect, an embodiment of the present application provides a UE for HD-FDD, including: a processor and a memory;

[0089] The memory is used to store computer instructions;

[0090] The processor is used to read the computer instructions and perform the following operations:

[0091] If the uplink transmission signal overlaps with the SSB in the time domain, then send the target uplink transmission signal in the overlapping symbols; and / or

[0092] If the downlink transmission signal overlaps with the valid RO in the time domain, then receive the target downlink transmission signal in the overlapping symbols.

[0093] As an alternative implementation, the target uplink transmission signal is determined as follows:

[0094] Determine the target uplink transmission signal according to a first predefined rule; or

[0095] Determine the target uplink transmission signal according to an indication of a network device.

[0096] As an alternative implementation, the first predefined rule includes some or all of the following:

[0097] Determine a dynamic uplink transmission signal as the target uplink transmission signal;

[0098] Determine an uplink transmission signal of a first preset type as the target uplink transmission signal;

[0099] Determine a dynamic uplink transmission signal of a first preset type as the target uplink transmission signal;

[0100] Determine some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0101] If it is not necessary to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signal;

[0102] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0103] As an alternative implementation, determining the target uplink transmission signal according to an indication of a network device includes:

[0104] Determine the target uplink transmission signal according to the first indication information in the RRC signaling or MAC CE sent by the network device.

[0105] As an alternative implementation, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signal; or

[0106] The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signal; or

[0107] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0108] As an alternative implementation, determining the target uplink transmission signal according to an indication of a network device includes:

[0109] If the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates transmission, determining the dynamic uplink transmission signal as the target uplink transmission signal; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals overlapping with the SSB.

[0110] As an alternative implementation, the target downlink transmission signal is determined by the following method:

[0111] Determining the target downlink transmission signal according to a second predefined rule; or

[0112] Determining the target downlink transmission signal according to an indication of a network device.

[0113] As an alternative implementation, the second predefined rule includes some or all of the following:

[0114] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0115] Determining the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0116] Determining the dynamic downlink transmission signal of a second preset type as the target downlink transmission signal;

[0117] Determining some or all of the dynamic downlink transmission signal and the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0118] If it is not necessary to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determining some or all of the downlink transmission signals as the target downlink transmission signal;

[0119] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0120] As an alternative implementation, determining the target downlink transmission signal according to an indication of a network device includes:

[0121] Determining the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0122] As an alternative implementation, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0123] The third indication information is used to indicate a set of downlink transmission signals belonging to the target downlink transmission signal; or

[0124] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0125] As an optional implementation manner, determining the target downlink transmission signal according to an indication of a network device includes:

[0126] If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, determining the dynamic downlink transmission signal as the target downlink transmission signal; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals overlapping with the valid RO.

[0127] In a fourth aspect, an embodiment of the present application provides a network device, including: a processor and a memory;

[0128] The memory is used to store computer instructions;

[0129] The processor is used to read the computer instructions and perform the following operations:

[0130] If the uplink transmission signal overlaps with the SSB in the time domain, receiving the target uplink transmission signal in the overlapping symbols sent by the UE of HD-FDD; and / or

[0131] If the downlink transmission signal overlaps with the valid RO in the time domain, sending the target downlink transmission signal in the overlapping symbols to the UE of HD-FDD.

[0132] As an optional implementation manner, the operations further include:

[0133] Determining the target uplink transmission signal according to a first predefined rule; or

[0134] Indicating the target uplink transmission signal to the UE.

[0135] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0136] Determining the dynamic uplink transmission signal as the target uplink transmission signal;

[0137] Determining the uplink transmission signal of a first preset type as the target uplink transmission signal;

[0138] Determine the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0139] Determine part or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0140] If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine part or all of the uplink transmission signals as the target uplink transmission signal;

[0141] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0142] As an alternative implementation, indicating the target uplink transmission signal to the UE includes:

[0143] Send an RRC signaling or MAC CE carrying the first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information.

[0144] As an alternative implementation, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0145] The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or

[0146] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0147] As an alternative implementation, indicating the target uplink transmission signal to the UE includes:

[0148] Send a DCI carrying the second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signal based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

[0149] As an alternative implementation, the operation further includes:

[0150] Determine the target downlink transmission signal according to the second predefined rule; or

[0151] Indicate the target downlink transmission signal to the UE.

[0152] As an alternative implementation, the second predefined rule includes some or all of the following:

[0153] Determine the dynamic downlink transmission signal as the target downlink transmission signal;

[0154] Determine the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0155] Determine the dynamic downlink transmission signal of the second preset type as the target downlink transmission signal;

[0156] Determine some or all of the dynamic downlink transmission signal and the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0157] If the UE does not need to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, determine some or all of the downlink transmission signals as the target downlink transmission signal;

[0158] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0159] As an alternative implementation, indicating the target downlink transmission signal to the UE includes:

[0160] Send an RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information.

[0161] As an alternative implementation, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0162] The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or

[0163] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0164] As an alternative implementation, indicating the target downlink transmission signal to the UE includes:

[0165] Send a DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signal based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI in the downlink transmission signals overlapping with the valid RO.

[0166] Fifth aspect, an embodiment of the present application provides a UE for HD-FDD, including:

[0167] A first transmission module, configured to, if an uplink transmission signal overlaps with an SSB in the time domain, transmit a target uplink transmission signal in the overlapping symbols; and / or

[0168] A first reception module, configured to, if a downlink transmission signal overlaps with a valid RO in the time domain, receive a target downlink transmission signal in the overlapping symbols of the downlink transmission signal.

[0169] Sixth aspect, an embodiment of the present application provides a network device, including:

[0170] A second reception module, configured to, if an uplink transmission signal overlaps with a synchronization signal block SSB in the time domain, receive a target uplink transmission signal transmitted by a UE for HD-FDD in the overlapping symbols; and / or

[0171] A second transmission module, configured to, if a downlink transmission signal overlaps with a valid RO in the time domain, transmit a target downlink transmission signal to the UE for HD-FDD in the overlapping symbols.

[0172] Seventh aspect, an embodiment of the present application provides a storage medium, which stores computer-executable instructions for causing a computer to execute the method according to any one of the first aspect or the second aspect.

[0173] In addition, for the technical effects brought by any implementation manner in the second to seventh aspects, reference may be made to the technical effects brought by different implementation manners in the first aspect, which will not be elaborated herein. Description of the Drawings

[0174] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0175] Figure 1 It is a system architecture diagram provided by an embodiment of the present application;

[0176] Figure 2A It is a schematic diagram of the overlap between an uplink transmission signal and an SSB provided by an embodiment of the present application;

[0177] Figure 2B It is a schematic diagram of the overlap between a downlink transmission signal and a valid RO provided by an embodiment of the present application;

[0178] Figure 3A It is an interaction flowchart of the first signal transmission method provided by the embodiment of the present application;

[0179] Figure 3B It is an interaction flowchart of the second signal transmission method provided by the embodiment of the present application;

[0180] Figure 4A It is an interaction flowchart of the third signal transmission method provided by the embodiment of the present application;

[0181] Figure 4B It is an interaction flowchart of the fourth signal transmission method provided by the embodiment of the present application;

[0182] Figure 5A It is an interaction flowchart of the fifth signal transmission method provided by the embodiment of the present application;

[0183] Figure 5B It is an interaction flowchart of the sixth signal transmission method provided by the embodiment of the present application;

[0184] Figure 6A It is an interaction flowchart of the seventh signal transmission method provided by the embodiment of the present application;

[0185] Figure 6B It is an interaction flowchart of the eighth signal transmission method provided by the embodiment of the present application;

[0186] Figure 7 It is a structural diagram of a UE of HD-FDD provided by the embodiment of the present application;

[0187] Figure 8 It is a structural diagram of a network device provided by the embodiment of the present application;

[0188] Figure 9 It is another structural diagram of a UE of HD-FDD provided by the embodiment of the present application;

[0189] Figure 10 It is another structural diagram of a network device provided by the embodiment of the present application. Detailed implementation manners

[0190] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0191] The following explains some terms in the embodiments of the present application to facilitate the understanding of those skilled in the art.

[0192] (1) In the embodiments of the present application, the nouns "network" and "system" are often used interchangeably, but those skilled in the art can understand their meanings.

[0193] (2) In the embodiments of the present application, the term "plurality" means two or more, and other quantifiers are similar.

[0194] (3) In the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0195] (4) The UE involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem. In different systems, the name of the UE may also be different. The wireless UE can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless UE can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, and personal digital assistants (PDAs). The wireless UE can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal device, access terminal device, user terminal device, user agent, user device, which is not limited in the embodiments of the present application.

[0196] (5) The network device involved in the embodiments of the present application may be a base station, which may include multiple cells that provide services to UEs. Depending on the specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an IP communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or may be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or may also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or may be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit may also be arranged separately geographically.

[0197] The network device and the UE may each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission, and the MIMO transmission may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the form and number of the combined root antennas, the MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or may also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0198] (6) In the embodiments of the present application, the uplink transmission signal includes an uplink signal and / or an uplink channel (the uplink channel is equivalent to the signal transmitted through the uplink channel), such as one or more of a sounding reference signal (SRS), a PUSCH (equivalent to the signal transmitted through the PUSCH), a PUCCH (equivalent to the signal transmitted through the PUCCH), and a PRACH (equivalent to the signal transmitted through the PRACH).

[0199] (7) In the embodiments of the present application, the downlink transmission signal includes a downlink signal and / or a downlink channel (the signal transmitted through the downlink channel), such as one or more of a PDSCH (equivalent to the signal transmitted through the PDSCH), a PDCCH (equivalent to the signal transmitted through the PDCCH), and a channel state information reference signal (CSI-RS).

[0200] The technical solutions provided by the embodiments of the present application can be applied to multiple systems, especially 5G systems. For example, the applicable systems can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunications system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5G NR system, etc. Both UE and network devices are included in these multiple systems. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0201] Figure 1 It is a system architecture diagram provided for the embodiments of the present application. The system includes a network device ( Figure 1Taking the gNB as an example), and the UE ( Figure 1 Taking UE1 and UE2 as examples, but there may be more or fewer UEs in actual applications).

[0202] The 5G NR system can be deployed either in unpaired spectrum or in paired spectrum. When the NR system is deployed in paired spectrum, the system conducts uplink transmission and downlink transmission on different frequency bands. Generally, both network devices and user devices support FDD and can receive and send signals simultaneously.

[0203] With the development of communication technology, RedCap UEs that save cost have emerged. Even in the NR system of paired spectrum, RedCap UEs may be HD-FDD UEs, that is, RedCap UEs cannot receive and send signals simultaneously. For HD-FDD UEs, when they are configured or scheduled to receive uplink signals and send downlink signals simultaneously, "collisions" of uplink and downlink signals will occur. HD-FDD UEs can only receive uplink signals or only send downlink signals in the event of "collisions". There is no specific solution for how to transmit uplink and downlink signals.

[0204] In a TDD system, simultaneous uplink transmission and downlink transmission are not supported, that is, neither network devices nor UEs can receive and send signals simultaneously, regardless of whether uplink transmission and downlink transmission are on the same frequency band. For the TDD system, there are the following two "collision" events:

[0205] 1. As Figure 2A shown, when the uplink transmission signal overlaps with the SSB in the time domain (i.e., the SSB collides with the uplink signal and / or uplink channel).

[0206] The SSB is an important channel related to cell search, paging, and initial access. Therefore, the priority of the SSB is higher than that of the uplink transmission signal. The UE does not send uplink transmission signals in the overlapping symbols (such as not sending signals through PUSCH, PUCCH, and PRACH in the overlapping symbols, and not sending SRS in the overlapping symbols either).

[0207] 2. As Figure 2B shown, when the downlink transmission signal overlaps with the valid RO in the time domain (i.e., the valid RO collides with the downlink signal and / or downlink channel). Among them, the overlap between the downlink signal and / or downlink channel and the first N gap symbols of the valid RO is also regarded as a collision, that is, the overlap between the downlink signal and / or downlink channel and the first N gap symbols of the valid RO is also regarded as an overlap in the time domain between the downlink signal and / or downlink channel and the valid RO (i.e., N shown in the figure gapThese symbols are also overlapping symbols, and will not be elaborated one by one hereafter).

[0208] A valid RO is also an important initial access related channel. Therefore, the priority of a valid RO is higher than that of the downlink transmission signal. The UE does not receive the downlink transmission signal in the overlapping symbols (e.g., does not receive the PDSCH and PDCCH in the overlapping symbols, and also does not receive the CSI-RS in the overlapping symbols).

[0209] In a TDD system, the network device cannot perform signal reception and transmission simultaneously. Therefore, when the network device transmits the SSB, the network device only performs downlink transmission and cannot perform uplink reception; when the network device detects the PRACH in a valid RO, the gNB only performs uplink reception and cannot perform downlink transmission, which meets the requirements of the TDD system.

[0210] However, if the above rules are directly applied to the UE of HD-FDD, it may cause waste of available resources. Since the network device in this system still supports FDD, the network device can fully perform signal reception and transmission simultaneously. Therefore, when the uplink transmission signal overlaps with the SSB in the time domain, the UE of HD-FDD does not transmit the uplink transmission signal in the overlapping symbols. When the downlink transmission signal overlaps with the valid RO in the time domain, the UE of HD-FDD does not receive the downlink transmission signal in the overlapping symbols, which may waste the resources that could have been transmitted or received.

[0211] Embodiments of this application are to solve the problem of how to transmit uplink and downlink signals when the uplink and downlink signals of the UE of HD-FDD overlap, and provide a signal transmission method, a user equipment, and a network device. Embodiments of this application can be applied to a 5G system and can also be applied to other systems.

[0212] The following will elaborate on the embodiments of this application in detail with reference to the accompanying drawings.

[0213] During the description process, the implementation of the UE and the network device, as well as their combined implementation, will be described separately. Such a description method does not mean that they must be combined for implementation or must be implemented separately. In fact, when the UE and the network device are implemented separately, they also solve the problems of the UE and the network device respectively. When they are used in combination, better technical effects will be obtained.

[0214] Figure 3A It is an interaction flowchart of the first signal transmission method provided by the embodiments of this application. As Figure 3A shown, it may include:

[0215] Step S301: If the uplink transmission signal overlaps with the SSB in the time domain, the UE of HD-FDD determines the target uplink transmission signal from the uplink transmission signal.

[0216] Step S302: The UE sends the target uplink transmission signal to the network device in the overlapping symbols.

[0217] Considering the feature that the network device connected to the UE of the above HD-FDD can simultaneously send downlink transmission signals and receive uplink transmission signals, it is not always necessary for the UE of the HD-FDD not to send uplink transmission signals to the network device in the above overlapping symbols.

[0218] Still taking the above Figure 2A as an example, when the uplink transmission signal and the SSB overlap in the time domain, the uplink transmission signal can still be sent in the symbols where the uplink transmission signal and the SSB overlap, and the uplink transmission signal sent is the above target uplink transmission signal. In addition, the UE can not send other uplink transmission signals except the target uplink transmission signal in the overlapping symbols.

[0219] In this embodiment, since the above network device can simultaneously send downlink transmission signals and receive uplink transmission signals, the UE improves the utilization rate of uplink resources by still sending the above target uplink transmission signal in the symbols where the uplink transmission signal and the SSB overlap.

[0220] Figure 3B It is an interaction flowchart of the second signal transmission method provided by the embodiment of the present application. As Figure 3B shown, it may include:

[0221] Step S303: If the downlink transmission signal and the valid RO overlap in the time domain, the UE of the HD-FDD determines the target downlink transmission signal from the downlink transmission signal.

[0222] Step S304: The network device sends the target downlink transmission signal to the UE in the overlapping symbols.

[0223] Considering the feature that the above network device can simultaneously send downlink transmission signals and receive uplink transmission signals, it is not always necessary for the UE of the HD-FDD not to receive the downlink transmission signals sent by the network device in the above overlapping symbols.

[0224] Still taking the above Figure 2B as an example, when the downlink transmission signal and the valid RO overlap in the time domain, the downlink transmission signal can still be sent in the symbols where the downlink transmission signal and the valid RO overlap, and the downlink transmission signal sent is the above target downlink transmission signal. In addition, the UE can not receive other downlink transmission signals except the target downlink transmission signal in the overlapping symbols.

[0225] In this embodiment, since the above network device can simultaneously transmit downlink transmission signals and receive uplink transmission signals, the above UE still receives the target downlink transmission signal in the symbols where the downlink transmission signal overlaps with the valid RO, thereby improving the utilization rate of downlink resources.

[0226] In some alternative embodiments, the UE may determine the target uplink transmission signal according to a first predefined rule; correspondingly, the network device also determines the target uplink transmission signal according to the first predefined rule.

[0227] Figure 4A It is an interaction flowchart of the third signal transmission method provided by the embodiments of this application. As Figure 4A shown, it may include:

[0228] Step S401: If the uplink transmission signal overlaps with the SSB in the time domain, the UE and the network device of HD-FDD determine the target uplink transmission signal from the uplink transmission signal according to the first predefined rule.

[0229] Step S402: The UE sends the target uplink transmission signal to the network device in the overlapping symbols.

[0230] Optionally, the first predefined rule includes some or all of the following:

[0231] 1) Determine the dynamic uplink transmission signal as the target uplink transmission signal.

[0232] The dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device. The network device often determines whether to schedule or trigger the uplink transmission signal through DCI according to immediate factors such as the service requirements of the UE and the overall load of the network. Therefore, the dynamic uplink transmission signal is usually more important. When the uplink transmission signal overlaps with the SSB in the time domain, the UE still sends the more important uplink transmission signal scheduled or triggered by DCI in the overlapping symbols.

[0233] Exemplarily, the above dynamic uplink transmission signal includes at least one of the following uplink transmission signals:

[0234] The PUSCH scheduled by DCI;

[0235] The feedback PUCCH of the PDSCH scheduled by DCI;

[0236] Through the feedback PUCCH corresponding to the DCI (for example, in this scenario, the DCI may be a DCI for releasing a semi-persistently scheduled physical downlink shared channel (Semi-Persistent Scheduling PDSCH, SPS-PDSCH), or a DCI for indicating secondary carrier dormancy);

[0237] PRACH triggered by DCI;

[0238] Aperiodic SRS triggered by DCI;

[0239] The first PUSCH in the Configured Grant PUSCH (CG-PUSCH) activated by DCI;

[0240] All PUSCHs in the CG-PUSCH activated by the DCI.

[0241] 2) Determine an uplink transmission signal of a first preset type as the target uplink transmission signal.

[0242] Generally speaking, PUCCH carries UCI, and PRACH can play a role in resynchronization or beam recovery, and their importance may be higher than PUSCH used to carry data and SRS used to detect channel quality. Based on this, the first preset category may include at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0243] Correspondingly, the first preset type of uplink transmission signal includes: at least one of: a signal transmitted through the PUCCH, a signal transmitted through the PRACH, and a signal transmitted through the PUSCH carrying the UCI.

[0244] 3) Determine a dynamic uplink transmission signal of a first preset type as the target uplink transmission signal.

[0245] Still taking the above-mentioned dynamic uplink transmission signal and the above-mentioned first preset type as an example, the target uplink transmission signal includes at least one of the following:

[0246] Feedback PUCCH of PDSCH scheduled by DCI;

[0247] Through the feedback PUCCH corresponding to the DCI;

[0248] PRACH triggered by DCI;

[0249] PUSCH carrying UCI scheduled by DCI.

[0250] 4) Determine some or all of the dynamic uplink transmission signals and the uplink transmission signals of the first preset type as the target uplink transmission signals.

[0251] Still taking the above dynamic uplink transmission signals and the above first preset type as an example, the target uplink transmission signals include at least one of the following:

[0252] PUSCH scheduled by DCI and / or carrying UCI;

[0253] Aperiodic SRS triggered by DCI;

[0254] PUCCH;

[0255] PRACH.

[0256] 5) If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signals.

[0257] The network device can configure the UE to periodically measure the SSB for beam maintenance, channel state estimation, mobility management, etc. Among them, the period of the UE measuring the SSB can be greater than the transmission period of the SSB. For example, the transmission period of the SSB is 10 ms, and the period of the UE measuring the SSB is 40 ms. That is to say, every 4 SSB transmission periods, the UE measures the SSB once, and among the 4 SSB transmission periods, the SSBs in 3 SSB transmission periods do not need to be measured.

[0258] Exemplarily, if the UE does not need to measure the SSB overlapping with the uplink transmission signal (such as the 3 SSB transmission periods in the above example), then determine some or all of the uplink transmission signals as the target uplink transmission signals. For example: If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine the target uplink transmission signals from the uplink transmission signals according to 1)-4) in the above first predefined rule.

[0259] In some embodiments, the above first predefined rule only includes any one of the above rules, and the UE can directly determine the target uplink transmission signal according to this rule.

[0260] In some other embodiments, the above first predefined rule includes multiple rules, and the target uplink transmission signal can be determined by, but not limited to, the following methods:

[0261] 1) Determine the target uplink transmission signal based on the default first predefined rule.

[0262] In this scenario, the above first predefined rule includes a default first predefined rule and at least one non-default first predefined rule.

[0263] 2) The UE determines the target uplink transmission signal based on the first predefined rule notified by the network device.

[0264] Correspondingly, before step S401, the network device also sends information indicating the notification of the first predefined rule to the UE.

[0265] In implementation, the network device may send RRC signaling or MAC CE carrying the above information indicating the notification of the first predefined rule to the UE. The information indicating the notification of the first predefined rule is used to notify the UE which first predefined rule to determine the target uplink transmission signal based on.

[0266] In this embodiment, the UE of HD-FDD can relatively conveniently determine the target uplink transmission signal from the above uplink transmission signals according to the first predefined rule. When the uplink transmission signal overlaps with the SSB in the time domain, the above UE can still send the above target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0267] In some optional implementation manners, the UE may determine the target downlink transmission signal according to a second predefined rule; correspondingly, the network device also determines the target uplink transmission signal according to the second predefined rule.

[0268] Figure 4B It is the interaction flowchart of the fourth signal transmission method provided by the embodiments of the present application. As Figure 4B shown, it may include:

[0269] Step S403: If the downlink transmission signal overlaps with the valid RO in the time domain, the UE of HD-FDD and the network device determine the target downlink transmission signal from the downlink transmission signal according to the second predefined rule.

[0270] Step S404: The network device sends the target downlink transmission signal to the UE in the overlapping symbols.

[0271] Correspondingly, the UE receives the target downlink transmission signal in the above overlapping symbols.

[0272] Optionally, the second predefined rule includes some or all of the following:

[0273] 1) Determine the dynamic downlink transmission signal as the target downlink transmission signal.

[0274] The dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device. The network device often determines whether to schedule or trigger the downlink transmission signal through DCI based on immediate factors such as the service requirements of the UE and the overall network load. Therefore, the dynamic downlink transmission signal is usually relatively important. When the downlink transmission signal overlaps with the valid RO in the time domain, the UE still receives the relatively important downlink transmission signal scheduled or triggered by DCI in the overlapping symbols.

[0275] Exemplarily, the above-mentioned dynamic downlink transmission signal includes at least one of the following downlink transmission signals:

[0276] PDCCH;

[0277] PDSCH scheduled by DCI;

[0278] Aperiodic CSI-RS triggered by DCI;

[0279] The first SPS-PDSCH in the semi-statically scheduled SPS-PDSCH scheduled by DCI;

[0280] All SPS-PDSCH in the SPS-PDSCH scheduled by DCI.

[0281] 2) Determine the downlink transmission signal of the second preset type as the target downlink transmission signal.

[0282] DCI is carried on the PDCCH, and the importance of the PDCCH may be higher than that of the PDSCH for carrying data and the CSI-RS for channel state detection. Based on this, the second preset type may include the PDCCH.

[0283] Correspondingly, the downlink transmission signal of the second preset type includes: the signal transmitted through the PDCCH.

[0284] 3) Determine the dynamic downlink transmission signal of the second preset type as the target downlink transmission signal.

[0285] Still taking the above-mentioned dynamic downlink transmission signal and the above-mentioned second preset type as an example, the target downlink transmission signal includes: the signal transmitted through the PDCCH.

[0286] 4) Determine some or all of the dynamic downlink transmission signal and the downlink transmission signal of the second preset type as the target downlink transmission signal.

[0287] Still taking the above-mentioned dynamic downlink transmission signal and the above-mentioned second preset type as an example, the target downlink transmission signal includes at least one of the following:

[0288] PDCCH;

[0289] PDSCH scheduled by DCI;

[0290] Aperiodic CSI-RS triggered by DCI;

[0291] The first SPS-PDSCH in the semi-statically scheduled SPS-PDSCH scheduled by DCI;

[0292] All SPS-PDSCHs in the SPS-PDSCH scheduled by DCI.

[0293] 5) If the above UE does not need to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, then part or all of the downlink transmission signals are determined as the target downlink transmission signals.

[0294] The network device can trigger the UE to send a PRACH signal in the valid RO through DCI for purposes such as resynchronization. Therefore, the network device instructs the UE to send a PRACH signal in some valid ROs and not to send a PRACH signal in other valid ROs.

[0295] Exemplarily, if the UE does not need to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, then part or all of the downlink transmission signals are determined as the target downlink transmission signals. For example: If the UE does not need to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, according to 1)-4) in the above second predefined rule, the target downlink transmission signal is determined from the downlink transmission signals.

[0296] In some embodiments, the above second predefined rule only includes any one of the above rules, and the UE and the network device can directly determine the target downlink transmission signal according to this rule.

[0297] In some other embodiments, the above second predefined rule includes multiple rules, and the UE and the network device can determine the target downlink transmission signal based on the default second predefined rule. In this scenario, the above second predefined rule includes a default second predefined rule and at least one non-default second predefined rule.

[0298] Alternatively, the UE determines the target downlink transmission signal based on the second predefined rule notified by the network device.

[0299] Correspondingly, before step S403, the network device also sends information characterizing the notification of the second predefined rule to the UE.

[0300] In implementation, the network device may send RRC signaling or MAC CE carrying the information representing the second predefined rule to the UE, and the information representing the second predefined rule is used to notify the UE which second predefined rule to use to determine the target downlink transmission signal.

[0301] In this embodiment, according to the second predefined rule, it is relatively convenient to determine the target downlink transmission signal from the above-mentioned downlink transmission signals. When the downlink transmission signal overlaps with the valid RO in the time domain, the UE can still receive the above-mentioned target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0302] In some alternative embodiments, the network device also indicates the target uplink transmission signal to the UE. Correspondingly, the UE determines the target uplink transmission signal according to the indication of the network device.

[0303] Figure 5A It is an interaction flowchart of the fifth signal transmission method provided by the embodiments of this application. As Figure 5A shown, it may include:

[0304] Step S501: The network device sends RRC signaling or MAC CE carrying the first indication information to the UE of HD-FDD.

[0305] Step S502: If the uplink transmission signal overlaps with the SSB in the time domain, the UE determines the target uplink transmission signal from the uplink transmission signal based on the first indication information.

[0306] Step S503: The UE sends the target uplink transmission signal to the network device in the overlapping symbols.

[0307] This embodiment does not limit the specific content indicated by the above first indication information. For example:

[0308] 1) The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals.

[0309] Exemplarily, the above first indication information indicates that all uplink transmission signals are target uplink transmission signals (the UE always sends uplink transmission signals in the overlapping symbols); or the above first indication information indicates that all uplink transmission signals are not target uplink transmission signals (the UE always does not send uplink transmission signals in the overlapping symbols).

[0310] 2) The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals.

[0311] In some embodiments, the first indication information indicates a set of uplink transmission signals. The uplink transmission signals belonging to the set of uplink transmission signals are target uplink transmission signals (the UE transmits these uplink transmission signals in overlapping symbols), while the uplink transmission signals not belonging to the set of uplink transmission signals are not target uplink transmission signals (the UE does not transmit these uplink transmission signals in overlapping symbols).

[0312] In some other embodiments, the first indication information may also indicate a set of uplink transmission signals. The uplink transmission signals belonging to the set of uplink transmission signals are not target uplink transmission signals (the UE does not transmit these uplink transmission signals in overlapping symbols), while the uplink transmission signals not belonging to the set of uplink transmission signals are target uplink transmission signals (the UE transmits these uplink transmission signals in overlapping symbols).

[0313] One can select from the above two equivalent methods according to the actual application scenario, and this embodiment does not make specific limitations thereon.

[0314] 3) The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0315] Exemplarily, the network device can independently indicate "transmit" or "not transmit" for each uplink transmission signal through the first indication information. If the first indication information indicates that a certain uplink transmission signal "transmits", this uplink transmission signal is the target uplink transmission signal. If the first indication information indicates that a certain uplink transmission signal "does not transmit", this uplink transmission signal is not the target uplink transmission signal. Additionally, if a certain uplink transmission signal is not configured with RRC signaling or MAC CE, this uplink transmission signal is not the target uplink transmission signal, that is, the UE does not transmit this uplink transmission signal in overlapping symbols.

[0316] In this embodiment, by sending RRC signaling or MAC CE to the HD-FDD UE, the network device can configure the target uplink transmission signal more flexibly. When the uplink transmission signal overlaps with the SSB in the time domain, the above-mentioned UE can still transmit the above-mentioned target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0317] In some optional implementation manners, the network device also indicates the target downlink transmission signal to the UE. Correspondingly, the UE determines the target downlink transmission signal according to the indication of the network device.

[0318] Figure 5B It is the interaction flowchart of the sixth signal transmission method provided by the embodiments of this application. As Figure 5B shown, it may include:

[0319] Step S504: The RRC signaling or MAC CE carrying the third indication information sent by the network device to the UE of HD-FDD.

[0320] Step S505: If the downlink transmission signal overlaps with the valid RO in the time domain, the UE determines the target downlink transmission signal from the downlink transmission signal based on the third indication information.

[0321] Step S506: The network device sends the target downlink transmission signal to the UE in the overlapping symbols.

[0322] Correspondingly, the UE receives the target downlink transmission signal in the above overlapping symbols.

[0323] This embodiment does not limit the specific indication content of the above third indication information. For example:

[0324] 1) The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals.

[0325] Exemplarily, the above third indication information indicates that all downlink transmission signals are target downlink transmission signals (the UE always receives downlink transmission signals in the overlapping symbols); or the above third indication information indicates that all downlink transmission signals are not target downlink transmission signals (the UE always does not receive downlink transmission signals in the overlapping symbols).

[0326] 2) The third indication information is used to indicate the set of downlink transmission signals that belong to the target downlink transmission signals.

[0327] In some embodiments, the third indication information indicates a set of downlink transmission signals. The downlink transmission signals belonging to this set of downlink transmission signals are target downlink transmission signals (the UE receives these downlink transmission signals in the overlapping symbols), while the downlink transmission signals not belonging to this set of downlink transmission signals are not target downlink transmission signals (the UE does not receive these downlink transmission signals in the overlapping symbols).

[0328] In some other embodiments, the third indication information indicates a set of downlink transmission signals. The downlink transmission signals belonging to this set of downlink transmission signals are not target downlink transmission signals (the UE does not receive these downlink transmission signals in the overlapping symbols), while the downlink transmission signals not belonging to this set of downlink transmission signals are target downlink transmission signals (the UE receives these downlink transmission signals in the overlapping symbols).

[0329] One can choose from the above two equivalent methods according to the actual application scenario, and this embodiment does not make specific limitations on this.

[0330] 3) The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0331] Exemplarily, the network device can independently indicate "receive" or "not receive" for each downlink transmission signal through the third indication information. If the third indication information indicates that a certain downlink transmission signal is "received", this downlink transmission signal is the target downlink transmission signal. If the third indication information indicates that a certain downlink transmission signal is "not received", this downlink transmission signal is not the target downlink transmission signal. Additionally, if a certain downlink transmission signal is not configured with RRC signaling or MAC CE, this downlink transmission signal is not the target downlink transmission signal, that is, the UE does not receive this downlink transmission signal in the overlapping symbols.

[0332] In this embodiment, by sending RRC signaling or MAC CE to the HD-FDD UE, the network device can configure the target downlink transmission signal more flexibly. When the downlink transmission signal overlaps with the SSB in the time domain, the above UE can still receive the above target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0333] In some alternative embodiments, the network device also indicates the target uplink transmission signal to the UE. Correspondingly, the UE determines the target uplink transmission signal according to the indication of the network device.

[0334] Figure 6A It is the interaction flowchart of the seventh signal transmission method provided by the embodiments of this application. As Figure 6A shown, it may include:

[0335] Step S601: The network device sends DCI carrying the second indication information to the HD-FDD UE.

[0336] Step S602: If the uplink transmission signal overlaps with the SSB in the time domain, the UE determines the target uplink transmission signal in the dynamic uplink transmission signals based on the second indication information.

[0337] Wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB. The dynamic uplink transmission signal can be specifically referred to the above embodiments and will not be elaborated here.

[0338] Step S603: The UE sends the target uplink transmission signal to the network device in the overlapping symbols.

[0339] Exemplarily, specific bits or an indication field in the DCI are the above second indication information, that is, the specific bits or the indication field are used to indicate whether the corresponding dynamic uplink transmission signal is the target uplink signal. For example:

[0340] 1) The DCI includes a 1-bit field or indication domain. This bit indicates whether the corresponding dynamic uplink transmission signal is the target uplink signal with different values. Specifically, this bit can take values of 0 or 1. When the value is 0, it indicates no transmission, that is, it indicates that the corresponding dynamic uplink transmission signal is not the target uplink signal; when the value is 1, it indicates transmission, that is, it indicates that the corresponding dynamic uplink transmission signal is the target uplink signal.

[0341] 2) The DCI includes a field or indication domain of N (N is a positive integer greater than 1) bits. These N bits can represent a total of 2^N states. M of these 2^N states (M < 2^N) indicate no transmission, while the other (2^N - M) states indicate transmission.

[0342] As described above, in some embodiments, the dynamic uplink transmission signal includes the first PUSCH in the CG-PUSCH activated by the DCI. That is, whether the first PUSCH belongs to the target uplink signal is determined according to the indication of the second indication information; at this time, the other PUSCHs in the CG-PUSCH except the first PUSCH are non-dynamic uplink transmission signals, and the non-dynamic uplink transmission signals can be directly determined not to belong to the target uplink signal, or the target uplink transmission signal can be determined from the non-dynamic uplink transmission signals in the manner of the following embodiments.

[0343] In some other embodiments, the dynamic uplink transmission signal includes all PUSCHs in the CG-PUSCH activated by the DCI. That is, whether all PUSCHs belong to the target uplink signal is determined according to the indication of the second indication information.

[0344] Only the target uplink transmission signal in the dynamic uplink transmission signal is determined through the above embodiments. In some alternative embodiments, the target uplink transmission signal in the non-dynamic uplink transmission signal (the non-dynamic uplink transmission signal is the uplink transmission signal that overlaps with the SSB and excludes the above dynamic uplink transmission signal) can be determined in the following manner:

[0345] The first determination method: Determine the target uplink transmission signal from the non-dynamic uplink transmission signal according to the third predefined rule.

[0346] Optionally, the third predefined rule includes some or all of the following:

[0347] 1) Determine the first preset type of non-dynamic uplink transmission signal as the target uplink transmission signal.

[0348] 2) If the UE does not need to measure the SSB that overlaps with the uplink transmission signal, determine the non-dynamic uplink transmission signal as the target uplink transmission signal.

[0349] 3) If the UE does not need to measure the SSB that overlaps with the uplink transmission signal, determine the non-dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0350] Among them, the first preset type can refer to the first preset type in the above first predefined rule. For the case where the third predefined rule only includes any one rule or includes multiple rules, the above embodiments can be referred to, and details are not described here again.

[0351] The second determination method: Determine the target uplink transmission signal from the non-dynamic uplink transmission signals according to the first indication information in the RRC signaling or MAC CE sent by the network device.

[0352] The specific implementation of this second determination method can refer to the above Figure 5A embodiment, the difference is only that Figure 5A the embodiment determines the target uplink transmission signal from all uplink transmission signals that overlap with the SSB, while this second determination method determines the target uplink transmission signal from the dynamic uplink transmission signals that overlap with the SSB, and details are not described here again.

[0353] In this embodiment, the network device dynamically indicates the target uplink transmission signal by sending DCI carrying the second indication information to the UE of HD-FDD, which is more applicable to scenarios where the UE repeatedly sends PUSCH signals, PUCCH signals, etc. When the uplink transmission signal overlaps with the SSB in the time domain, the above UE can still send the above target uplink transmission signal in the overlapping symbols, improving the utilization rate of uplink resources.

[0354] In some alternative embodiments, the network device also indicates the target downlink transmission signal to the UE. Correspondingly, the UE determines the target downlink transmission signal according to the indication of the network device.

[0355] Figure 6B It is the interaction flowchart of the eighth signal transmission method provided by the embodiment of the present application. As Figure 6B shown, it may include:

[0356] Step S604: The network device sends DCI carrying the fourth indication information to the UE of HD-FDD.

[0357] Step S605: If the downlink transmission signal overlaps with the valid RO in the time domain, the UE determines the target downlink transmission signal in the dynamic downlink transmission signals based on the fourth indication information.

[0358] Among them, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI among the downlink transmission signals overlapping with the valid RO. The specific dynamic downlink transmission signal can refer to the above embodiments and will not be elaborated here.

[0359] Step S606: The network device sends the target downlink transmission signal to the UE in the overlapping symbols.

[0360] Correspondingly, the UE receives the target downlink transmission signal in the above overlapping symbols.

[0361] Exemplarily, a specific bit or indication field in the DCI is the above fourth indication information, that is, the specific bit or indication field is used to indicate whether the corresponding dynamic downlink transmission signal is the target downlink signal. For example:

[0362] 1) The DCI includes a 1-bit field or indication field, and this bit uses different values to indicate whether the corresponding dynamic downlink transmission signal is the target downlink signal. Specifically, this bit can take values of 0 or 1. When the value is 0, it indicates non-reception, that is, it indicates that the corresponding dynamic downlink transmission signal is not the target downlink signal; when the value is 1, it indicates reception, that is, it indicates that the corresponding dynamic downlink transmission signal is the target downlink signal.

[0363] 2) The DCI includes a field or indication field of N (N is a positive integer greater than 1) bits. These N bits can represent a total of 2^N states. M of these 2^N states (M < 2^N) indicate non-reception, and the other (2^N - M) states indicate reception.

[0364] As described above, in some embodiments, the dynamic downlink transmission signal includes the first SPS-PDSCH in the SPS-PDSCH scheduled by the DCI. That is, whether the first PDSCH belongs to the target downlink signal is determined according to the indication of the fourth indication information; at this time, the other SPS-PDSCHs in the SPS-PDSCH except the first SPS-PDSCH are non-dynamic downlink transmission signals. The non-dynamic downlink transmission signals can be directly determined not to belong to the target downlink signal, or the target downlink transmission signal can be determined from the non-dynamic downlink transmission signals by the method of the following embodiments.

[0365] In some other embodiments, the dynamic downlink transmission signal includes all SPS-PDSCHs in the SPS-PDSCH scheduled by the DCI. That is, whether all PDSCHs belong to the target downlink signal is determined according to the indication of the fourth indication information.

[0366] Through the above embodiments, only the target downlink transmission signal in the dynamic downlink transmission signal is determined. In some alternative embodiments, the target downlink transmission signal in the non-dynamic downlink transmission signal (the non-dynamic downlink transmission signal is the downlink transmission signal other than the above dynamic downlink transmission signal among the downlink transmission signals overlapping with the valid RO) can be determined in the following manner:

[0367] The first determination method: Determine the target downlink transmission signal from the non-dynamic uplink transmission signal according to the fourth predefined rule.

[0368] Optionally, the fourth predefined rule includes some or all of the following:

[0369] 1) Determine the second preset type of non-dynamic downlink transmission signal as the target downlink transmission signal.

[0370] 2) If the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determine the non-dynamic downlink transmission signal as the target downlink transmission signal.

[0371] 3) If the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determine the second preset type of non-dynamic downlink transmission signal as the target downlink transmission signal;

[0372] Among them, the second preset type can refer to the second preset type in the above second predefined rule. For the case where the second predefined rule only includes any one rule or includes multiple rules, the above embodiments can be referred to, and details are not described here again.

[0373] The second determination method: Determine the target downlink transmission signal from the non-dynamic downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0374] The specific implementation of this second determination method can refer to the above Figure 5B embodiments. The difference is only that Figure 5B in the embodiments, the target downlink transmission signal is determined from all downlink transmission signals overlapping with the valid RO, while in this second determination method, the target downlink transmission signal is determined from the dynamic downlink transmission signals overlapping with the valid RO, and details are not described here again.

[0375] In this embodiment, the network device dynamically indicates the target downlink transmission signal by sending DCI carrying the fourth indication information to the UE of HD-FDD, which is more applicable to the scenario where the network device repeatedly sends PDSCH. When the downlink transmission signal overlaps with the SSB in the time domain, the above UE can still receive the above target downlink transmission signal in the overlapping symbols, improving the utilization rate of downlink resources.

[0376] Based on the same inventive concept, an embodiment of the present application also provides a signal transmission method, which is applied to the above-mentioned UE of HD-FDD and includes:

[0377] If the uplink transmission signal overlaps with the SSB in the time domain, then send the target uplink transmission signal in the uplink transmission signal in the overlapping symbols; and / or

[0378] If the downlink transmission signal overlaps with the valid RO in the time domain, then receive the target downlink transmission signal in the downlink transmission signal in the overlapping symbols.

[0379] As an optional implementation manner, the target uplink transmission signal is determined by the following method:

[0380] Determine the target uplink transmission signal according to the first predefined rule; or

[0381] Determine the target uplink transmission signal according to the indication of the network device.

[0382] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0383] Determine the dynamic uplink transmission signal as the target uplink transmission signal;

[0384] Determine the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0385] Determine the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0386] Determine some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0387] If it is not necessary to measure the SSB overlapping with the uplink transmission signal, then determine some or all of the uplink transmission signals as the target uplink transmission signal;

[0388] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0389] As an alternative implementation, determining the target uplink transmission signal according to an indication of a network device includes:

[0390] Determining the target uplink transmission signal according to first indication information in RRC signaling or MAC CE sent by the network device.

[0391] As an alternative implementation, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signal; or

[0392] The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signal; or

[0393] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0394] As an alternative implementation, determining the target uplink transmission signal according to an indication of a network device includes:

[0395] If the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates transmission, determining the dynamic uplink transmission signal as the target uplink transmission signal; where the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals overlapping with the SSB.

[0396] As an alternative implementation, the target downlink transmission signal is determined by the following method:

[0397] Determining the target downlink transmission signal according to a second predefined rule; or

[0398] Determining the target downlink transmission signal according to an indication of a network device.

[0399] As an alternative implementation, the second predefined rule includes some or all of the following:

[0400] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0401] Determining the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0402] Determining the dynamic downlink transmission signal of a second preset type as the target downlink transmission signal;

[0403] Determining some or all of the dynamic downlink transmission signal and the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0404] If it is not necessary to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, then part or all of the downlink transmission signals are determined as the target downlink transmission signals;

[0405] Among them, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0406] As an optional implementation manner, determining the target downlink transmission signal according to an indication of a network device includes:

[0407] Determining the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0408] As an optional implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0409] The third indication information is used to indicate a set of downlink transmission signals that belong to the target downlink transmission signals; or

[0410] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0411] As an optional implementation manner, determining the target downlink transmission signal according to an indication of a network device includes:

[0412] If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, then the dynamic downlink transmission signal is determined as the target downlink transmission signal; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals that overlap with the valid RO.

[0413] Since this method is the method corresponding to the UE of the above HD-FDD, the specific implementation manner of this method can refer to the above embodiments, and the repeated parts will not be elaborated.

[0414] Based on the same inventive concept, an embodiment of the present application further provides a signal transmission method, which is applied to the above network device, and includes:

[0415] If the uplink transmission signal overlaps with the SSB in the time domain, then receiving the target uplink transmission signal in the overlapping symbols sent by the UE of HD-FDD; and / or

[0416] If the downlink transmission signal overlaps with the valid RO in the time domain, then sending the target downlink transmission signal in the overlapping symbols to the UE of HD-FDD.

[0417] As an alternative implementation, the method further includes:

[0418] Determining the target uplink transmission signal according to a first predefined rule; or

[0419] Instructing the UE to the target uplink transmission signal.

[0420] As an alternative implementation, the first predefined rule includes some or all of the following:

[0421] Determining a dynamic uplink transmission signal as the target uplink transmission signal;

[0422] Determining a first predefined type of uplink transmission signal as the target uplink transmission signal;

[0423] Determining a first predefined type of dynamic uplink transmission signal as the target uplink transmission signal;

[0424] Determining some or all of the dynamic uplink transmission signal and the first predefined type of uplink transmission signal as the target uplink transmission signal;

[0425] If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determining some or all of the uplink transmission signals as the target uplink transmission signal;

[0426] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first predefined type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0427] As an alternative implementation, instructing the UE to the target uplink transmission signal includes:

[0428] Sending an RRC signaling or a MAC CE carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information.

[0429] As an alternative implementation, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signal; or

[0430] The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signal; or

[0431] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0432] As an alternative implementation manner, indicating the target uplink transmission signal to the UE includes:

[0433] Sending DCI carrying second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signal based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI in the uplink transmission signal overlapping with the SSB.

[0434] As an alternative implementation manner, the method further includes:

[0435] Determining the target downlink transmission signal according to a second predefined rule; or

[0436] Indicating the target downlink transmission signal to the UE.

[0437] As an alternative implementation manner, the second predefined rule includes some or all of the following:

[0438] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0439] Determining the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0440] Determining the dynamic downlink transmission signal of a second preset type as the target downlink transmission signal;

[0441] Determining some or all of the dynamic downlink transmission signal and the downlink transmission signal of a second preset type as the target downlink transmission signal;

[0442] If the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determining some or all of the downlink transmission signals as the target downlink transmission signals;

[0443] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0444] As an alternative implementation manner, indicating the target downlink transmission signal to the UE includes:

[0445] Sending RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information.

[0446] As an alternative implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0447] The third indication information is used to indicate a set of downlink transmission signals belonging to the target downlink transmission signal; or

[0448] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0449] As an optional implementation manner, indicating the target downlink transmission signal to the UE includes:

[0450] Sending DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signals based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI among the downlink transmission signals overlapping with validRO.

[0451] Since this method is the method corresponding to the above network device, the specific implementation manner of this method can refer to the above embodiments, and the repeated parts will not be elaborated here.

[0452] As Figure 7 shown, a UE of HD-FDD provided by an embodiment of the present application includes: a processor 701, a memory 702, a transceiver 703, and a bus interface 704.

[0453] The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 701 when performing operations. The transceiver 703 is used to receive and send data under the control of the processor 701.

[0454] The bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 701 and the memory represented by the memory 702 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 701 when performing operations.

[0455] The process disclosed in the embodiments of the present application can be applied to or implemented by the processor 701. During implementation, each step of the signal transmission method can be completed by the integrated logic circuit of the hardware in the processor 701 or the instructions in the form of software. The processor 701 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by the hardware processor, or executed by the combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and combines its hardware to complete the steps of the signal transmission method.

[0456] Specifically, the processor 701 is configured to read the computer instructions in the memory 702 and perform the following operations:

[0457] If the uplink transmission signal overlaps with the SSB in the time domain, then transmit the target uplink transmission signal in the overlapping symbols; and / or

[0458] If the downlink transmission signal overlaps with the valid RO in the time domain, then receive the target downlink transmission signal in the overlapping symbols.

[0459] As an alternative implementation manner, the target uplink transmission signal is determined by the following method:

[0460] Determine the target uplink transmission signal according to the first predefined rule; or

[0461] Determine the target uplink transmission signal according to the indication of the network device.

[0462] As an alternative implementation manner, the first predefined rule includes some or all of the following:

[0463] Determine the dynamic uplink transmission signal as the target uplink transmission signal;

[0464] Determine the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0465] Determine the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal;

[0466] Determine some or all of the dynamic uplink transmission signals and the uplink transmission signals of the first preset type as the target uplink transmission signals;

[0467] If it is not necessary to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signals;

[0468] Among them, the dynamic uplink transmission signals include the uplink transmission signals corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0469] As an optional implementation manner, determining the target uplink transmission signal according to the indication of the network device includes:

[0470] Determine the target uplink transmission signal according to the first indication information in the RRC signaling or MAC CE sent by the network device.

[0471] As an optional implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0472] The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or

[0473] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0474] As an optional implementation manner, determining the target uplink transmission signal according to the indication of the network device includes:

[0475] If the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates transmission, determine the dynamic uplink transmission signal as the target uplink transmission signal; among them, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals overlapping with the SSB.

[0476] As an optional implementation manner, determine the target downlink transmission signal in the following manner:

[0477] Determine the target downlink transmission signal according to the second predefined rule; or

[0478] Determine the target downlink transmission signal according to the indication of the network device.

[0479] As an optional implementation manner, the second predefined rule includes some or all of the following:

[0480] Determine the dynamic downlink transmission signal as the target downlink transmission signal;

[0481] Determine the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0482] Determine the dynamic downlink transmission signal of the second preset type as the target downlink transmission signal;

[0483] Determine some or all of the dynamic downlink transmission signal and the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0484] If it is not necessary to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determine some or all of the downlink transmission signals as the target downlink transmission signal;

[0485] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0486] As an optional implementation manner, determining the target downlink transmission signal according to an indication of a network device includes:

[0487] Determine the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0488] As an optional implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0489] The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or

[0490] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0491] As an optional implementation manner, determining the target downlink transmission signal according to an indication of a network device includes:

[0492] If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, determine the dynamic downlink transmission signal as the target downlink transmission signal; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals overlapping with the valid RO.

[0493] As Figure 8As shown in the figure, a network device provided by an embodiment of the present application includes: a processor 801, a memory 802, a transceiver 803, and a bus interface 804.

[0494] The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 can store the data used by the processor 801 when performing operations. The transceiver 803 is used to receive and send data under the control of the processor 801.

[0495] The bus architecture can include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 801 and the memory represented by the memory 802 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore will not be further described herein. The bus interface provides an interface. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 can store the data used by the processor 801 when performing operations.

[0496] The process disclosed in the embodiment of the present application can be applied to or implemented by the processor 801. During the implementation process, each step of the signal transmission method can be completed by the integrated logic circuit in the hardware of the processor 801 or the instructions in the form of software. The processor 801 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiment of the present application can be directly embodied as being executed by the hardware processor, or executed by a combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, etc. This storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802 and combines its hardware to complete the steps of the signal transmission method.

[0497] Specifically, the processor 801 is used to read the computer instructions in the memory 802 and perform the following operations:

[0498] If the uplink transmission signal overlaps with the SSB in the time domain, then receive the target uplink transmission signal in the uplink transmission signal sent by the UE of HD-FDD in the overlapping symbols; and / or

[0499] If the downlink transmission signal overlaps with the valid RO in the time domain, the target downlink transmission signal in the downlink transmission signal is sent to the UE of HD-FDD in the overlapping symbols.

[0500] As an optional implementation manner, the operation further includes:

[0501] Determining the target uplink transmission signal according to a first predefined rule; or

[0502] Instructing the UE about the target uplink transmission signal.

[0503] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0504] Determining a dynamic uplink transmission signal as the target uplink transmission signal;

[0505] Determining an uplink transmission signal of a first preset type as the target uplink transmission signal;

[0506] Determining a dynamic uplink transmission signal of a first preset type as the target uplink transmission signal;

[0507] Determining some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0508] If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determining some or all of the uplink transmission signals as the target uplink transmission signal;

[0509] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0510] As an optional implementation manner, instructing the UE about the target uplink transmission signal includes:

[0511] Sending an RRC signaling or a MAC CE carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information.

[0512] As an optional implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signal; or

[0513] The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signal; or

[0514] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0515] As an alternative implementation, indicating the target uplink transmission signal to the UE includes:

[0516] Sending DCI carrying second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signals based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

[0517] As an alternative implementation, the operation further includes:

[0518] Determining the target downlink transmission signal according to a second predefined rule; or

[0519] Indicating the target downlink transmission signal to the UE.

[0520] As an alternative implementation, the second predefined rule includes some or all of the following:

[0521] Determining the dynamic downlink transmission signal as the target downlink transmission signal;

[0522] Determining the downlink transmission signals of a second preset type as the target downlink transmission signals;

[0523] Determining the dynamic downlink transmission signals of a second preset type as the target downlink transmission signals;

[0524] Determining some or all of the dynamic downlink transmission signals and the downlink transmission signals of a second preset type as the target downlink transmission signals;

[0525] If the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determining some or all of the downlink transmission signals as the target downlink transmission signals;

[0526] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0527] As an alternative implementation, indicating the target downlink transmission signal to the UE includes:

[0528] Sending RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information.

[0529] As an alternative implementation, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0530] the third indication information is used to indicate a set of downlink transmission signals that belong to the target downlink transmission signals; or

[0531] the third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0532] As an alternative implementation, indicating the target downlink transmission signal to the UE includes:

[0533] sending DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signals based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI among the downlink transmission signals overlapping with validRO.

[0534] As Figure 9 shown, a UE 900 of HD-FDD provided by an embodiment of the present application includes:

[0535] A first transmission module 901, configured to, if the uplink transmission signal overlaps with the SSB in the time domain, transmit the target uplink transmission signal in the overlapping symbols; and / or

[0536] A first reception module 902, configured to, if the downlink transmission signal overlaps with valid RO in the time domain, receive the target downlink transmission signal in the overlapping symbols.

[0537] As an alternative implementation, the first transmission module 901 is configured to determine the target uplink transmission signal in the following manner:

[0538] Determine the target uplink transmission signal according to a first predefined rule; or

[0539] Determine the target uplink transmission signal according to an indication of a network device.

[0540] As an alternative implementation, the first predefined rule includes some or all of the following:

[0541] Determine the dynamic uplink transmission signal as the target uplink transmission signal;

[0542] Determine the uplink transmission signals of a first preset type as the target uplink transmission signals;

[0543] Determine the dynamic uplink transmission signals of a first preset type as the target uplink transmission signals;

[0544] Determine some or all of the dynamic uplink transmission signals and the uplink transmission signals of the first preset type as the target uplink transmission signals;

[0545] If it is not necessary to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signals;

[0546] Wherein, the dynamic uplink transmission signal includes the uplink transmission signal corresponding to the DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0547] As an optional implementation manner, the first sending module 901 determines the target uplink transmission signal according to an indication of the network device, including:

[0548] Determine the target uplink transmission signal according to the first indication information in the RRC signaling or MAC CE sent by the network device.

[0549] As an optional implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0550] The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or

[0551] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0552] As an optional implementation manner, the first sending module 901 determines the target uplink transmission signal according to an indication of the network device, including:

[0553] If the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates transmission, determine the dynamic uplink transmission signal as the target uplink transmission signal; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals overlapping with the SSB.

[0554] As an optional implementation manner, the first receiving module 902 is used to determine the target downlink transmission signal in the following manner:

[0555] Determine the target downlink transmission signal according to the second predefined rule; or

[0556] Determine the target downlink transmission signal according to an indication of the network device.

[0557] As an alternative implementation, the second predefined rule includes some or all of the following:

[0558] Determine the dynamic downlink transmission signal as the target downlink transmission signal;

[0559] Determine the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0560] Determine the dynamic downlink transmission signal of the second preset type as the target downlink transmission signal;

[0561] Determine some or all of the dynamic downlink transmission signal and the downlink transmission signal of the second preset type as the target downlink transmission signal;

[0562] If it is not necessary to send a PRACH signal in the valid RO that overlaps with the downlink transmission signal, determine some or all of the downlink transmission signals as the target downlink transmission signal;

[0563] Wherein, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0564] As an alternative implementation, the first receiving module 902 determines the target downlink transmission signal according to an indication of the network device, including:

[0565] Determine the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device.

[0566] As an alternative implementation, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0567] The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or

[0568] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0569] As an alternative implementation, the first receiving module 902 determines the target downlink transmission signal according to an indication of the network device, including:

[0570] If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, determine the dynamic downlink transmission signal as the target downlink transmission signal; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals overlapping with the valid RO.

[0571] As shown in Figure 10 Figure 10 , a network device 1000 provided by an embodiment of the present application includes:

[0572] A second receiving module 1001, configured to receive a target uplink transmission signal in the uplink transmission signal sent by a UE of HD-FDD in overlapping symbols if the uplink transmission signal overlaps with a synchronization signal block SSB in the time domain; and / or

[0573] A second transmitting module 1002, configured to send a target downlink transmission signal in the downlink transmission signal to a UE of HD-FDD in overlapping symbols if the downlink transmission signal overlaps with a valid RO in the time domain.

[0574] As an optional implementation manner, the second receiving module 1001 is further configured to: determine the target uplink transmission signal according to a first predefined rule;

[0575] Or the second transmitting module 1002 is further configured to indicate the target uplink transmission signal to the UE.

[0576] As an optional implementation manner, the first predefined rule includes some or all of the following:

[0577] Determine a dynamic uplink transmission signal as the target uplink transmission signal;

[0578] Determine an uplink transmission signal of a first preset type as the target uplink transmission signal;

[0579] Determine a dynamic uplink transmission signal of a first preset type as the target uplink transmission signal;

[0580] Determine some or all of the dynamic uplink transmission signal and the uplink transmission signal of the first preset type as the target uplink transmission signal;

[0581] If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine some or all of the uplink transmission signals as the target uplink transmission signals;

[0582] Wherein, the dynamic uplink transmission signal includes an uplink transmission signal corresponding to DCI sent by the network device, and the first preset type includes at least one of PUCCH, PRACH, and PUSCH carrying UCI.

[0583] As an optional implementation manner, the second transmitting module 1002 indicating the target uplink transmission signal to the UE includes:

[0584] Send RRC signaling or MAC CE carrying the first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information.

[0585] As an optional implementation manner, the first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or

[0586] The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signals; or

[0587] The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal.

[0588] As an optional implementation manner, the second sending module 1002 indicates the target uplink transmission signal to the UE, including:

[0589] Send DCI carrying the second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signals based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

[0590] As an optional implementation manner, the second sending module 1002 is further configured to:

[0591] Determine the target downlink transmission signal according to a second predefined rule; or

[0592] Indicate the target downlink transmission signal to the UE.

[0593] As an optional implementation manner, the second predefined rule includes some or all of the following:

[0594] Determine the dynamic downlink transmission signal as the target downlink transmission signal;

[0595] Determine the second preset type of downlink transmission signal as the target downlink transmission signal;

[0596] Determine the second preset type of dynamic downlink transmission signal as the target downlink transmission signal;

[0597] Determine some or all of the dynamic downlink transmission signal and the second preset type of downlink transmission signal as the target downlink transmission signal;

[0598] If the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, determine some or all of the downlink transmission signals as the target downlink transmission signals;

[0599] Among them, the dynamic downlink transmission signal includes the downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes PDCCH.

[0600] As an optional implementation manner, the second sending module 1002 indicates the target downlink transmission signal to the UE, including:

[0601] Sending an RRC signaling or a MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information.

[0602] As an optional implementation manner, the third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or

[0603] The third indication information is used to indicate a set of downlink transmission signals belonging to the target downlink transmission signals; or

[0604] The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

[0605] As an optional implementation manner, the second sending module 1002 indicates the target downlink transmission signal to the UE, including:

[0606] Sending a DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signal based on the fourth indication information; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI in the downlink transmission signals overlapping with validRO.

[0607] An embodiment of the present application provides a storage medium storing computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the signal transmission method performed by the UE of the above HD-FDD.

[0608] An embodiment of the present application provides a storage medium storing computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the signal transmission method performed by the network device as described above.

[0609] The above storage medium may be any available medium or data storage device accessible by a computer, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid state drives (SSD)).

[0610] The foregoing is described with reference to block diagrams and / or flowchart illustrations of methods, apparatus (systems) and / or computer program products according to embodiments of the present application. It should be understood that one block of the block diagrams and / or flowchart illustrations, and combinations of blocks in the block diagrams and / or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, and / or other programmable data processing apparatus to produce a machine, such that the instructions executed via the computer processor and / or other programmable data processing apparatus create a means for implementing the functions / acts specified in the block diagrams and / or flowchart block(s).

[0611] Accordingly, the present application can also be implemented by hardware and / or software (including firmware, resident software, microcode, etc.). Further still, the present application can take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of the present application, a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

[0612] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A signal transmission method, characterized in that Applied to a user equipment (UE) in a half-duplex frequency division duplexing (HD-FDD), the method includes: If the uplink transmission signal overlaps with a synchronization signal block (SSB) in the time domain, then transmit a target uplink transmission signal in the overlapping symbols, where the target uplink transmission signal is determined in the following manner: If it is not necessary to measure the SSB that overlaps with the uplink transmission signal, then determine part or all of the uplink transmission signal as the target uplink transmission signal; or determine the target uplink transmission signal according to an indication from a network device. Determining the target uplink transmission signal according to an indication from a network device includes: Determine the target uplink transmission signal according to first indication information in radio resource control (RRC) signaling or media access control control element (MAC CE) sent by the network device. The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or The first indication information is used to indicate a set of uplink transmission signals that belong to the target uplink transmission signals; or The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal. And / or If a downlink transmission signal overlaps with a valid random access channel occasion (valid RO) in the time domain, then receive a target downlink transmission signal in the overlapping symbols; the target downlink transmission signal is determined in the following manner: If it is not necessary to transmit a physical random access channel (PRACH) signal in the valid RO that overlaps with the downlink transmission signal, then determine part or all of the downlink transmission signal as the target downlink transmission signal; or determine the target downlink transmission signal according to an indication from a network device. Determining the target downlink transmission signal according to an indication from a network device includes: Determine the target downlink transmission signal according to third indication information in RRC signaling or MAC CE sent by the network device. The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or The third indication information is used to indicate a set of downlink transmission signals that belong to the target downlink transmission signals; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

2. The method according to claim 1, characterized in that Determining the target uplink transmission signal according to an indication from a network device further includes: If a second indication information in a downlink control information (DCI) corresponding to a dynamic uplink transmission signal indicates transmission, then determine the dynamic uplink transmission signal as the target uplink transmission signal; where the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals that overlap with the SSB.

3. The method according to claim 1, wherein Determining the target downlink transmission signal according to an indication from a network device further includes: If a fourth indication information in a DCI corresponding to a dynamic downlink transmission signal indicates transmission, then determine the dynamic downlink transmission signal as the target downlink transmission signal; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals that overlap with the valid RO.

4. A signal transmission method, characterized in that, Applied to a network device, the method includes: If the uplink transmission signal overlaps with the Synchronization Signal Block (SSB) in the time domain, receiving the target uplink transmission signal in the overlapping symbols of the uplink transmission signal transmitted by a Half-Duplex Frequency Division Duplex (HD-FDD) User Equipment (UE); Wherein, if the UE does not need to measure the SSB overlapping with the uplink transmission signal, determining part or all of the uplink transmission signal as the target uplink transmission signal; or indicating the target uplink transmission signal to the UE; Indicating the target uplink transmission signal to the UE includes: Sending Radio Resource Control (RRC) signaling or Medium Access Control Control Element (MAC CE) carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information; The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal; And / or If the downlink transmission signal overlaps with a valid Physical Random Access Channel occasion (valid RO) in the time domain, sending the target downlink transmission signal in the overlapping symbols to the HD-FDD UE; Wherein, if the UE does not need to send a Physical Random Access Channel (PRACH) signal in the valid RO overlapping with the downlink transmission signal, determining part or all of the downlink transmission signal as the target downlink transmission signal; or indicating the target downlink transmission signal to the UE; Indicating the target downlink transmission signal to the UE includes: Sending RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information; The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

5. The method according to claim 4, characterized in that, Indicating the target uplink transmission signal to the UE further includes: Sending Downlink Control Information (DCI) carrying second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signal based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

6. The method according to claim 5, wherein Indicating the target downlink transmission signal to the UE further includes: Sending DCI carrying fourth indication information to the UE, so that the UE determines the target downlink transmission signal in the dynamic downlink transmission signal based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI among the downlink transmission signals overlapping with the valid RO.

7. A user equipment UE of half-duplex frequency-division duplexing HD-FDD, characterized in that, The UE includes: a processor and a memory; The memory is used to store computer instructions; The processor is used to read the computer instructions and perform the following operations: If the uplink transmission signal overlaps with the Synchronization Signal Block (SSB) in the time domain, then transmit the target uplink transmission signal in the overlapping symbols in the uplink transmission signal, where the target uplink transmission signal is determined by the following methods: If it is not necessary to measure the SSB that overlaps with the uplink transmission signal, then determine part or all of the uplink transmission signal as the target uplink transmission signal; or determine the target uplink transmission signal according to an indication from the network device; Determining the target uplink transmission signal according to an indication from the network device includes: Determine the target uplink transmission signal according to the first indication information in the Radio Resource Control (RRC) signaling or Medium Access Control Element (MAC CE) sent by the network device; The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or The first indication information is used to indicate the set of uplink transmission signals that belong to the target uplink transmission signals; or The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal; and / or If the downlink transmission signal overlaps with a valid Physical Random Access Channel occasion (valid RO) in the time domain, then receive the target downlink transmission signal in the overlapping symbols in the downlink transmission signal; the target downlink transmission signal is determined by the following methods: If it is not necessary to transmit a Physical Random Access Channel (PRACH) signal in the valid RO that overlaps with the downlink transmission signal, then determine part or all of the downlink transmission signal as the target downlink transmission signal; or determine the target downlink transmission signal according to an indication from the network device; Determining the target downlink transmission signal according to an indication from the network device includes: Determine the target downlink transmission signal according to the third indication information in the RRC signaling or MAC CE sent by the network device; The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or The third indication information is used to indicate the set of downlink transmission signals that belong to the target downlink transmission signals; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

8. The UE according to claim 7, wherein Determining the target uplink transmission signal according to an indication from the network device further includes: If the second indication information in the Downlink Control Information (DCI) corresponding to the dynamic uplink transmission signal indicates transmission, then determine the dynamic uplink transmission signal as the target uplink transmission signal; where the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI sent by the network device among the uplink transmission signals that overlap with the SSB.

9. The UE according to claim 7, characterized in that, Determining the target downlink transmission signal according to an indication from the network device further includes: If the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates transmission, then determine the dynamic downlink transmission signal as the target downlink transmission signal; where the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI sent by the network device among the downlink transmission signals that overlap with the valid RO.

10. A network device, characterized in that, Including: A processor and a memory; The memory stores computer instructions; The processor is configured to read the computer instructions and perform the following operations: If the uplink transmission signal overlaps with the Synchronization Signal Block (SSB) in the time domain, receive the target uplink transmission signal in the overlapping symbols of the uplink transmission signal sent by the Half-Duplex Frequency Division Duplex (HD-FDD) User Equipment (UE); The operations further include: If the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine part or all of the uplink transmission signal as the target uplink transmission signal; or indicate the target uplink transmission signal to the UE; Indicating the target uplink transmission signal to the UE includes: Sending Radio Resource Control (RRC) signaling or Medium Access Control Element (MAC CE) carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information; The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signals; or The first indication information is used to indicate the set of uplink transmission signals belonging to the target uplink transmission signals; or The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal; And / or If the downlink transmission signal overlaps with a valid Physical Random Access Channel occasion (valid RO) in the time domain, send the target downlink transmission signal in the overlapping symbols to the HD-FDD UE; The operations further include: If the UE does not need to send a Physical Random Access Channel (PRACH) signal in the valid RO overlapping with the downlink transmission signal, determine part or all of the downlink transmission signal as the target downlink transmission signal; or indicate the target downlink transmission signal to the UE; Indicating the target downlink transmission signal to the UE includes: Sending RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information; The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or The third indication information is used to indicate the set of downlink transmission signals belonging to the target downlink transmission signals; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

11. The network device according to claim 10, wherein Indicating the target uplink transmission signal to the UE further includes: Sending Downlink Control Information (DCI) carrying second indication information to the UE, so that the UE determines the target uplink transmission signal in the dynamic uplink transmission signal based on the second indication information; wherein, the dynamic uplink transmission signal is the uplink transmission signal corresponding to the DCI among the uplink transmission signals overlapping with the SSB.

12. The network device according to claim 10, wherein, Indicating the target downlink transmission signal to the UE further includes: Send DCI carrying fourth indication information to the UE, so that the UE determines a target downlink transmission signal in the dynamic downlink transmission signal based on the fourth indication information; wherein, the dynamic downlink transmission signal is the downlink transmission signal corresponding to the DCI among the downlink transmission signals overlapping with the valid RO.

13. A user equipment UE of half-duplex frequency-division duplexing HD-FDD, characterized in that, The UE includes: A first transmission module, configured to, if an uplink transmission signal overlaps with a Synchronization Signal Block (SSB) in the time domain, transmit a target uplink transmission signal in the uplink transmission signal in the overlapping symbols; wherein the target uplink transmission signal is determined by the following method: if it is not necessary to measure the SSB overlapping with the uplink transmission signal, determine part or all of the uplink transmission signal as the target uplink transmission signal; or determine the target uplink transmission signal according to an indication of a network device. Determining the target uplink transmission signal according to an indication of a network device includes: Determining the target uplink transmission signal according to first indication information in Radio Resource Control (RRC) signaling or Medium Access Control Element (MAC CE) sent by the network device. The first indication information is used to indicate whether all uplink transmission signals are the target uplink transmission signal; or The first indication information is used to indicate a set of uplink transmission signals belonging to the target uplink transmission signal; or The first indication information is used to indicate whether each uplink transmission signal is the target uplink transmission signal. And / or A first reception module, configured to, if a downlink transmission signal overlaps with a valid Physical Random Access Channel occasion (valid RO) in the time domain, receive a target downlink transmission signal in the downlink transmission signal in the overlapping symbols; the target downlink transmission signal is determined by the following method: if it is not necessary to transmit a Physical Random Access Channel (PRACH) signal in the valid RO overlapping with the downlink transmission signal, determine part or all of the downlink transmission signal as the target downlink transmission signal; or determine the target downlink transmission signal according to an indication of a network device. Determining the target downlink transmission signal according to an indication of a network device includes: Determining the target downlink transmission signal according to third indication information in RRC signaling or MAC CE sent by the network device. The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signal; or The third indication information is used to indicate a set of downlink transmission signals belonging to the target downlink transmission signal; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

14. A network device, characterized in that, The network device includes: A second reception module, configured to, if an uplink transmission signal overlaps with a Synchronization Signal Block (SSB) in the time domain, receive a target uplink transmission signal in the uplink transmission signal sent by a User Equipment (UE) in half-duplex Frequency Division Duplex (HD-FDD) in the overlapping symbols. Wherein, if the UE does not need to measure the SSB overlapping with the uplink transmission signal, determine part or all of the uplink transmission signal as the target uplink transmission signal; or indicate the target uplink transmission signal to the UE. Instructing the UE to the target uplink transmission signal includes: Sending radio resource control (RRC) signaling or media access control element (MAC CE) carrying first indication information to the UE, so that the UE determines the target uplink transmission signal based on the first indication information; And / or A second sending module, configured to, if a downlink transmission signal overlaps with a valid physical random access channel occasion (valid RO) in the time domain, send the target downlink transmission signal in the downlink transmission signal to the UE of HD-FDD in the overlapping symbols; Wherein if the UE does not need to send a PRACH signal in the valid RO overlapping with the downlink transmission signal, part or all of the downlink transmission signal is determined as the target downlink transmission signal; or the UE is instructed to the target downlink transmission signal; Instructing the UE to the target downlink transmission signal includes: Sending RRC signaling or MAC CE carrying third indication information to the UE, so that the UE determines the target downlink transmission signal based on the third indication information; The third indication information is used to indicate whether all downlink transmission signals are the target downlink transmission signals; or The third indication information is used to indicate a set of downlink transmission signals belonging to the target downlink transmission signals; or The third indication information is used to indicate whether each downlink transmission signal is the target downlink transmission signal.

15. A storage medium, characterized in that, The storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the method according to any one of claims 1-6.

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