CN115190598A

CN115190598A - Signal transmission method, user equipment and network equipment

Info

Publication number: CN115190598A
Application number: CN202110360710.5A
Authority: CN
Inventors: 费永强; 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-14

Abstract

The embodiment of the application relates to a signal transmission method, user equipment and network equipment, wherein the method comprises the following steps: if the uplink transmission signal and the synchronization signal block SSB are overlapped in the time domain, the HD-FDD UE sends a target uplink transmission signal in the overlapped symbol, so that the utilization rate of uplink resources is improved; and/or if the downlink transmission signal overlaps with the valid RO in the time domain, the HD-FDD UE receives a target downlink transmission signal in the overlapped symbol, thereby improving the utilization rate of downlink resources.

Description

Signal transmission method, user equipment and network equipment

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a signal transmission method, a user equipment, and a network device.

Background

The fifth generation New wireless for mobile communications (5th New radio,5g NR) system can be deployed in both unpaired and paired spectrum. When the NR system is deployed in a paired spectrum, the system performs uplink transmission and downlink transmission on different Frequency bands, and usually, both a network device and a User Equipment (UE) support Frequency Division Duplex (FDD), and can simultaneously receive and transmit signals.

With the development of communication technology, reduced Capability User Equipment (reccap UE) capable of saving cost and overhead appears. Even in the paired spectrum NR system, the red beacon UE may be a Half Duplex-Frequency Division Duplex (HD-FDD) user equipment, i.e., the red beacon UE cannot receive and transmit signals at the same time. For HD-FDD UEs, when they are configured or scheduled to receive uplink signals and transmit downlink signals at the same time, a "collision" of uplink and downlink signals occurs. When uplink and downlink signals are overlapped, the HD-FDD UE can only receive uplink signals, or can only send downlink signals, and how to transmit the uplink and downlink signals does not have a specific scheme.

Disclosure of Invention

The application provides a signal transmission method, user equipment and network equipment, which are used for solving the problem of how to transmit uplink and downlink signals when the uplink and downlink signals of HD-FDD UE are overlapped.

In a first aspect, an embodiment of the present application provides a signal transmission method, which is applied to a UE in HD-FDD, and the method includes:

if an uplink transmission Signal and a Synchronization Signal Block (SSB) overlap in a time domain, transmitting a target uplink transmission Signal of the uplink transmission Signal in an overlapping symbol; and/or

If a downlink transmission signal overlaps with an effective physical Random Access Channel (valid RO) in a time domain, receiving a target downlink transmission signal in the downlink transmission signal in an overlapped symbol.

According to the scheme, because the network equipment can simultaneously send the downlink transmission signal and receive the uplink transmission signal, the HD-FDD UE still sends the target uplink transmission signal in the symbol overlapped by the uplink transmission signal and the SSB, so that the utilization rate of uplink resources is improved; the HD-FDD UE still receives the target downlink transmission signal in the symbol where the downlink transmission signal overlaps with the valid RO, thereby improving the utilization rate of downlink resources.

As an optional implementation manner, the target uplink transmission signal is determined by:

determining the target uplink transmission signal according to a first predefined rule; or

And determining the target uplink transmission signal according to the indication of the network equipment.

In the scheme, the HD-FDD UE determines the target uplink transmission signal according to the first predefined rule or the indication of the network equipment, and is suitable for the requirements of different application scenes.

As an optional implementation, the first predefined rule includes some or all of:

determining a dynamic uplink transmission signal as the target uplink transmission signal;

determining a first preset type of uplink transmission signal as the target uplink transmission signal;

determining a first preset type of dynamic uplink transmission signal as the target uplink transmission signal;

determining a part or all of the dynamic uplink transmission signal and the first preset type of uplink transmission signal as the target uplink transmission signal;

if the SSB overlapped with the uplink transmission signal does not need to be measured, determining part or all of the uplink transmission signal as the target uplink transmission signal;

the dynamic Uplink transmission signal includes an Uplink transmission signal corresponding to 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) for carrying Uplink Control Information (UCI).

According to the scheme, the HD-FDD UE can conveniently determine the target uplink transmission signal from the uplink transmission signals according to the first predefined rule, and when the uplink transmission signal and the SSB are overlapped in the time domain, the UE can still send the target uplink transmission signal in the overlapped symbol, so that the utilization rate of uplink resources is improved.

As an optional implementation manner, determining the target uplink transmission signal according to an instruction of a network device includes:

and determining the target uplink transmission signal according to a first indication information in a Radio Resource Control (RRC) signaling or a Media Access Control Element (MAC CE) sent by a network device.

According to the scheme, the network equipment can more flexibly configure the target uplink transmission signal by sending the RRC signaling or the MAC CE to the HD-FDD UE, and when the uplink transmission signal and the SSB are overlapped in the time domain, the UE can still send the target uplink transmission signal in the overlapped symbol, so that the utilization rate of uplink resources is improved.

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 alternatively

The first indication information is used for indicating a set of uplink transmission signals belonging to the target uplink transmission signal; or

The first indication information is used for indicating whether each uplink transmission signal is the target uplink transmission signal.

As an optional implementation manner, the determining the target uplink transmission signal according to an instruction of a network device includes:

if the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates sending, determining the dynamic uplink transmission signal as the target uplink transmission signal; the dynamic uplink transmission signal is an uplink transmission signal corresponding to DCI sent by the network device in an uplink transmission signal overlapped with the SSB.

According to the scheme, the network equipment dynamically indicates the target uplink transmission signal by sending the DCI carrying the second indication information to the HD-FDD UE, and the method is more suitable for the UE repeatedly sending PUSCH, PUCCH and other scenes. When the uplink transmission signal and the SSB are overlapped in the time domain, the UE can still send the target uplink transmission signal in the overlapped symbol, thereby improving the utilization rate of the uplink resource.

As an optional implementation manner, the target downlink transmission signal is determined by:

determining the target downlink transmission signal according to a second predefined rule; or

And determining the target downlink transmission signal according to the indication of the network equipment.

According to the scheme, the HD-FDD UE determines the target downlink transmission signal according to the second predefined rule or the indication of the network equipment, and the method is suitable for the requirements of different application scenes.

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

determining a dynamic downlink transmission signal as the target downlink transmission signal;

determining a second preset type of downlink transmission signal as the target downlink transmission signal;

determining a second preset type of dynamic downlink transmission signal as the target downlink transmission signal;

determining part or all of the dynamic downlink transmission signal and the second preset type of downlink transmission signal as the target downlink transmission signal;

if the PRACH signal does not need to be sent in the valid RO overlapped with the downlink transmission signal, determining part or all of the downlink transmission signals as the target downlink transmission signals;

the dynamic Downlink transmission signal includes a Downlink transmission signal corresponding to the DCI sent by the network device, and the second preset type includes a Physical Downlink Control Channel (PDCCH).

According to the scheme, the target downlink transmission signal can be conveniently determined from the downlink transmission signals according to the second predefined rule, and when the downlink transmission signal is overlapped with the valid RO in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, so that the utilization rate of downlink resources is improved.

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

and determining the target downlink transmission signal according to the RRC signaling sent by the network equipment or the third indication information in the MAC CE.

According to the scheme, the network equipment can more flexibly configure the target downlink transmission signal by sending the RRC signaling or the MAC CE to the HD-FDD UE, and when the downlink transmission signal and the SSB are overlapped in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, so that the utilization rate of downlink resources is improved.

As an optional implementation manner, 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 for indicating 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.

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

if the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates sending, determining the dynamic downlink transmission signal as the target downlink transmission signal; the dynamic downlink transmission signal is a downlink transmission signal corresponding to DCI sent by the network device in a downlink transmission signal overlapped with valid RO.

According to the scheme, the network equipment dynamically indicates the target downlink transmission signal by sending the DCI carrying the fourth indication information to the HD-FDD UE, and the method is more suitable for a scene that the network equipment repeatedly sends the PDSCH. When the downlink transmission signal and the SSB are overlapped in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, thereby improving the utilization rate of the downlink resource.

In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to a network device, and the method includes:

if the uplink transmission signal and the SSB are overlapped in the time domain, receiving a target uplink transmission signal in the uplink transmission signal, which is sent by the HD-FDD UE in the overlapped symbol; and/or

And if the downlink transmission signal and the valid RO are overlapped on the time domain, sending a target downlink transmission signal in the downlink transmission signal to the HD-FDD UE in the overlapped symbol.

As an optional implementation, the method further comprises:

determining the target uplink transmission signal according to a first predefined rule; or alternatively

Indicating the target uplink transmission signal to the UE.

if the UE does not need to measure the SSB overlapped with the uplink transmission signal, determining part or all of the uplink transmission signal as the target uplink transmission signal;

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

As an optional implementation manner, the indicating the target uplink transmission signal to the UE includes:

and 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.

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

sending DCI carrying second indication information to the UE so that the UE determines a target uplink transmission signal in dynamic uplink transmission signals based on the second indication information; the dynamic uplink transmission signal is an uplink transmission signal corresponding to the DCI in an uplink transmission signal overlapped with the SSB.

As an optional implementation, the method further comprises:

And indicating the target downlink transmission signal to the UE.

if the UE does not need to send the PRACH signal in the valid RO overlapped with the downlink transmission signal, determining part or all of the downlink transmission signals as the target downlink transmission signals;

the dynamic downlink transmission signal includes a downlink transmission signal corresponding to DCI sent by the network device, and the second preset category includes a PDCCH.

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

and 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.

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

sending DCI carrying fourth indication information to the UE so that the UE determines a target downlink transmission signal in dynamic downlink transmission signals based on the fourth indication information; the dynamic downlink transmission signal is a downlink transmission signal corresponding to the DCI in a downlink transmission signal overlapped with a valid RO.

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

the memory to store computer instructions;

the processor is used for reading the computer instructions and executing the following operations:

if the uplink transmission signal and the SSB are overlapped in the time domain, a target uplink transmission signal in the uplink transmission signal is sent in an overlapped symbol; and/or

And if the downlink transmission signal and the valid RO are overlapped in the time domain, receiving a target downlink transmission signal in the overlapped symbol.

As an optional embodiment, the first predefined rule includes some or all of the following:

determining part or all of the dynamic uplink transmission signals and the first preset type of uplink transmission signals as the target uplink transmission signals;

if the SSB overlapped with the uplink transmission signal does not need to be measured, determining a part of or all the uplink transmission signals as the target uplink transmission signals;

and determining the target uplink transmission signal according to RRC signaling sent by the network equipment or first indication information in the MAC CE.

The first indication information is used for indicating a set of uplink transmission signals belonging to the target uplink transmission signal; or alternatively

if the second indication information in the DCI corresponding to the dynamic uplink transmission signal indicates to be sent, determining the dynamic uplink transmission signal as the target uplink transmission signal; the dynamic uplink transmission signal is an uplink transmission signal corresponding to DCI sent by the network device in an uplink transmission signal overlapped with the SSB.

determining the target downlink transmission signal according to a second predefined rule; or alternatively

determining part or all of the dynamic downlink transmission signal and a second preset type of downlink transmission signal as the target downlink transmission signal;

if the fourth indication information in the DCI corresponding to the dynamic downlink transmission signal indicates sending, determining the dynamic downlink transmission signal as the target downlink transmission signal; the dynamic downlink transmission signal is a downlink transmission signal corresponding to DCI sent by the network device in the downlink transmission signal overlapped with valid RO.

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

the memory to store computer instructions;

if the uplink transmission signal is overlapped with the SSB in the time domain, receiving a target uplink transmission signal in the uplink transmission signal sent by the HD-FDD UE in the overlapped symbol; and/or

As an optional implementation, the operations further comprise:

Indicating the target uplink transmission signal to the UE.

As an optional implementation, the operations further comprise:

And indicating the target downlink transmission signal to the UE.

The third indication information is used for indicating a set of downlink transmission signals belonging to the target downlink transmission signal; or alternatively

In a fifth aspect, an embodiment of the present application provides an HD-FDD UE, including:

a first sending module, configured to send a target uplink transmission signal in an overlapped symbol if the uplink transmission signal overlaps with an SSB in a time domain; and/or

A first receiving module, configured to receive a target downlink transmission signal in a downlink transmission signal in an overlapped symbol if the downlink transmission signal overlaps with the valid RO in a time domain.

In a sixth aspect, an embodiment of the present application provides a network device, including:

a second receiving module, configured to receive, if the uplink transmission signal overlaps with the synchronization signal block SSB in the time domain, a target uplink transmission signal in the uplink transmission signal sent by the HD-FDD UE in an overlapping symbol; and/or

And a second sending module, configured to send a target downlink transmission signal in the downlink transmission signal to the HD-FDD UE in an overlapped symbol if the downlink transmission signal overlaps with the valid RO in a time domain.

In a seventh aspect, an embodiment of the present application provides a storage medium storing computer-executable instructions for causing a computer to perform the method according to any one of the first aspect or the second aspect.

In addition, for technical effects brought by any one of the implementation manners in the second to seventh aspects, reference may be made to technical effects brought by different implementation manners in the first aspect, and details are not described here.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a diagram of a system architecture according to an embodiment of the present application;

fig. 2A is a schematic diagram illustrating overlapping of an uplink transmission signal and an SSB according to an embodiment of the present application;

fig. 2B is a schematic diagram illustrating an overlap between a downlink transmission signal and a valid RO according to an embodiment of the present disclosure;

fig. 3A is an interaction flowchart of a first signal transmission method according to an embodiment of the present application;

fig. 3B is an interaction flowchart of a second signal transmission method according to an embodiment of the present application;

fig. 4A is an interaction flowchart of a third signal transmission method according to an embodiment of the present application;

fig. 4B is an interaction flowchart of a fourth signal transmission method according to an embodiment of the present application;

fig. 5A is an interaction flowchart of a fifth signal transmission method according to an embodiment of the present application;

fig. 5B is an interaction flowchart of a sixth signal transmission method according to an embodiment of the present application;

fig. 6A is an interaction flowchart of a seventh signal transmission method according to an embodiment of the present application;

fig. 6B is an interaction flowchart of an eighth signal transmission method according to an embodiment of the present application;

fig. 7 is a block diagram of a UE for HD-FDD according to an embodiment of the present application;

fig. 8 is a structural diagram of a network device according to an embodiment of the present application;

fig. 9 is a block diagram of another HD-FDD UE according to an embodiment of the present invention;

fig. 10 is a block diagram of another network device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Some terms in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning.

(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

(3) In the embodiment of the present application, "and/or" describes an association relationship of associated objects, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

(4) The UE referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. The name of the UE may also be different in different systems. A wireless UE, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless UE may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment.

(5) The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for serving UEs. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an IP communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), may also be an evolved 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), may also be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico) and the like, and the present application is not limited in this embodiment. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the UE by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

(6) In the embodiment of the present application, the uplink transmission Signal includes an uplink Signal, and/or an uplink channel (the uplink channel is equivalent to a Signal transmitted through the uplink channel), for example, one or more of a Sounding Reference Signal (SRS), a PUSCH (equivalent to a Signal transmitted through the PUSCH), a PUCCH (equivalent to a Signal transmitted through the PUCCH), and a PRACH (equivalent to a Signal transmitted through the PRACH).

(7) In the embodiment of the present application, the downlink transmission Signal includes a downlink Signal, and/or a downlink Channel (a Signal transmitted through the downlink Channel), for example, one or more of a PDSCH (equivalent to a Signal transmitted through the PDSCH), a PDCCH (equivalent to a Signal transmitted through the PDCCH), and a Channel State Information Reference Signal (CSI-RS).

The technical scheme provided by the embodiment of the application can be suitable for various systems, especially 5G systems. For example, suitable systems may be a global system for mobile communications (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, an LTE-advanced (long term evolution) system, an LTE-a system, a UMTS (universal mobile telecommunications system), a WiMAX (worldwide interoperability for microwave Access) system, a 5G NR system, and the like. The UE and the network device are included in these various systems. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5 GS), and the like.

Fig. 1 is a system architecture diagram provided in an embodiment of the present application, where the system includes a network device (in fig. 1, a gNB is taken as an example), and a UE (in fig. 1, UE1 and UE2 are taken as examples, but in practical application, there may be more or fewer UEs).

The 5G NR system can be deployed in either unpaired spectrum or paired spectrum. When the NR system is deployed in a paired spectrum, the system performs uplink transmission and downlink transmission on different frequency bands, and both the network device and the user equipment generally support FDD, and can simultaneously perform reception and transmission of signals.

With the development of communication technologies, a reccap UE that saves cost overhead has emerged. Even in the paired spectrum NR system, the red map UE may be an HD-FDD UE, i.e., the red map UE cannot simultaneously receive and transmit signals. For HD-FDD UEs, when they are configured or scheduled to receive uplink signals at the same time, and transmit downlink signals, a "collision" of uplink and downlink signals occurs. In the event of collision, the HD-FDD UE can only receive uplink signals or can only send downlink signals, and how to transmit uplink and downlink signals is not a specific scheme.

In the TDD system, simultaneous uplink transmission and downlink transmission are not supported, that is, both the network device and the UE cannot simultaneously receive and transmit signals, regardless of whether the uplink transmission and the downlink transmission are on the same frequency band. For a TDD system, there are two "collision" events:

1. as shown in fig. 2A, when the uplink transmission signal overlaps with the SSB in the time domain (i.e., the SSB collides with the uplink signal and/or the uplink channel).

SSBs are important channels related to cell search, paging, and initial access, and therefore have higher priority than uplink transmission signals. The UE does not transmit the uplink transmission signal in the overlapped symbol (e.g., does not transmit the signal through PUSCH, PUCCH, and PRACH in the overlapped symbol, and does not transmit the SRS in the overlapped symbol).

2. As shown in fig. 2B, the downstream transmission signal overlaps with the valid RO in the time domain (i.e., the valid RO collides with the downstream signal and/or the downstream channel). Wherein, the downlink signal and/or downlink channel and the first N of valid RO _gap The overlap between symbols is also considered as a collision, i.e. the downlink signal and/or the downlink channel with the first N of the valid RO _gap The overlap between symbols is also considered as the overlap of the downstream signal and/or downstream channel and valid RO in time domain (i.e. N is shown in the figure) _gap The symbols are also overlapping symbols and will not be described one by one in the following).

The valid RO is also an important initial access-related channel, and thus has a higher priority than a downstream transmission signal. The UE does not receive downlink transmission signals in the overlapped symbols (e.g., does not receive PDSCH and PDCCH in the overlapped symbols, and does not receive CSI-RS in the overlapped symbols).

In the TDD system, the network device cannot receive and transmit signals at the same time, so 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 the valid RO, the gNB only performs uplink reception but cannot perform downlink transmission, which is in accordance with the requirement of the TDD system.

However, if the above rule is directly applied to the HD-FDD UE, the available resources may be wasted. Since the network device in the system still supports FDD, the network device can completely receive and transmit signals at the same time. Therefore, when the uplink transmission signal and the SSB overlap in the time domain, the HD-FDD UE does not transmit the uplink transmission signal in the overlapped symbol, and when the downlink transmission signal and the valid RO overlap in the time domain, the HD-FDD UE does not receive the downlink transmission signal in the overlapped symbol, which may waste resources that can be originally transmitted or received.

The embodiment of the application provides a signal transmission method, user equipment and network equipment in order to solve the problem of how to transmit uplink and downlink signals when the uplink and downlink signals of the HD-FDD UE are overlapped.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description, the implementation of the UE and the network device, and the implementation of the UE and the network device in cooperation with each other will be described. Such a description does not mean that the two must be implemented cooperatively or separately, and actually, when the UE and the network device are implemented separately, the UE and the network device respectively solve the problems of the UE and the network device, and when the UE and the network device are used in combination, a better technical effect is obtained.

Fig. 3A is an interaction flowchart of a first signal transmission method according to an embodiment of the present application, and as shown in fig. 3A, the interaction flowchart may include:

step S301: and if the uplink transmission signal and the SSB are overlapped in the time domain, the HD-FDD UE determines a target uplink transmission signal from the uplink transmission signal.

Step S302: and the UE sends the target uplink transmission signal to network equipment in the overlapped symbols.

Considering the feature that the network device connected to the HD-FDD UE can simultaneously transmit the downlink transmission signal and receive the uplink transmission signal, it is not always necessary that the HD-FDD UE does not transmit the uplink transmission signal to the network device in the overlapped symbol.

Still taking the above fig. 2A as an example, when the uplink transmission signal and the SSB overlap in the time domain, the uplink transmission signal may still be sent in a symbol where the uplink transmission signal and the SSB overlap, and the sent uplink transmission signal is the target uplink transmission signal. In addition, the UE may not transmit other uplink transmission signals than the target uplink transmission signal in the overlapped symbols.

In this embodiment, since the network device may send a downlink transmission signal and receive an uplink transmission signal at the same time, the UE still sends the target uplink transmission signal in a symbol where the uplink transmission signal and the SSB are overlapped, thereby improving the utilization rate of uplink resources.

Fig. 3B is an interaction flowchart of a second signal transmission method according to an embodiment of the present application, and as shown in fig. 3B, the method may include:

step S303: and if the downlink transmission signal is overlapped with the valid RO in the time domain, the HD-FDD UE determines a target downlink transmission signal from the downlink transmission signals.

Step S304: the network equipment sends the target downlink transmission signal to the UE in overlapped symbols.

In consideration of the characteristic that the network device can simultaneously transmit the downlink transmission signal and receive the uplink transmission signal, it is not always necessary that the HD-FDD UE does not receive the downlink transmission signal transmitted by the network device in the overlapped symbol.

Also taking fig. 2B as an example, when the downlink signal and the valid RO overlap in the time domain, the downlink signal may still be transmitted in the symbol where the downlink signal and the valid RO overlap, and the transmitted downlink signal is the target downlink signal. In addition, the UE may not receive other downlink transmission signals than the target downlink transmission signal in the overlapped symbols.

In this embodiment, since the network device may simultaneously send a downlink transmission signal and receive an uplink transmission signal, the UE still receives the target downlink transmission signal in a symbol where the downlink transmission signal overlaps with the valid RO, thereby improving the utilization rate of downlink resources.

In some optional 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.

Fig. 4A is an interaction flowchart of a third signal transmission method provided in the embodiment of the present application, and as shown in fig. 4A, the method may include:

step S401: and if the uplink transmission signal and the SSB are overlapped in the time domain, the HD-FDD UE and the network equipment determine a target uplink transmission signal from the uplink transmission signal according to a first predefined rule.

Step S402: and the UE sends the target uplink transmission signal to network equipment in the overlapped symbols.

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

1) And determining the dynamic uplink transmission signal as the target uplink transmission signal.

The dynamic uplink transmission signal includes an uplink transmission signal corresponding to DCI sent by the network device. The network device often determines whether to schedule or trigger the uplink transmission signal through DCI according to the instant factors such as the service requirement of the UE and the overall load of the network, so that the dynamic uplink transmission signal is usually important. When the uplink transmission signal overlaps with the SSB in the time domain, the UE still transmits the more important uplink transmission signal scheduled or triggered by the DCI in the overlapping symbol.

Illustratively, the dynamic uplink transmission signal includes at least one of the following uplink transmission signals:

PUSCH scheduled by DCI;

a feedback PUCCH for PDSCH scheduled by DCI;

through a feedback PUCCH corresponding to the DCI (for example, the DCI in the scenario may be DCI releasing a Semi-Persistent Scheduling (Semi-Persistent Scheduling PDSCH, SPS-PDSCH), or DCI indicating that the secondary carrier is dormant);

a PRACH triggered by DCI;

an aperiodic SRS triggered by DCI;

configuring a first physical uplink shared channel (CG-PUSCH) of a Grant activated by DCI;

all PUSCHs of CG-PUSCHs activated by the DCI.

2) And determining the uplink transmission signal of the first preset type as the target uplink transmission signal.

Generally, the PUCCH carries UCI, and the PRACH may perform functions such as resynchronization and beam recovery, which may be more important than the PUSCH for carrying data and the SRS for performing channel quality sounding. Based on this, the first preset category may include at least one of PUCCH, PRACH, and PUSCH carrying UCI.

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

3) And determining the dynamic uplink transmission signal of the first preset type as the target uplink transmission signal.

Also taking the dynamic uplink transmission signal and the first predetermined category as examples, the target uplink transmission signal includes at least one of the following:

a feedback PUCCH for PDSCH scheduled by DCI;

feeding back a PUCCH corresponding to the DCI;

a PRACH triggered by DCI;

and the PUSCH which carries the UCI and is scheduled by the DCI.

4) And determining part or all of the dynamic uplink transmission signals and the first preset type of uplink transmission signals as the target uplink transmission signals.

Also taking the dynamic uplink transmission signal and the first predetermined type as examples, the target uplink transmission signal includes at least one of the following:

scheduling and/or carrying PUSCH of UCI through DCI;

DCI triggered aperiodic SRS;

PUCCH；

PRACH。

5) If the UE does not need to measure the SSB overlapped with the uplink transmission signal, determining a part or all of the uplink transmission signal as the target uplink transmission signal.

The network device may configure the UE to measure the SSBs periodically for beam maintenance, channel state estimation, mobility management, and the like, where a period for the UE to measure the SSBs may be greater than a transmission period of the SSBs. For example, the transmission period of the SSB is 10ms, while the period of the UE measuring the SSB is 40ms, that is, the UE measures the SSB 1 time every 4 SSB transmission periods, and the SSB in 3 SSB transmission periods of every 4 SSB transmission periods does not need to be measured.

Illustratively, if the UE does not need to measure the SSBs overlapped with the uplink transmission signal (e.g. 3 SSB transmission periods as in the above example), part or all of the uplink transmission signal is determined as the target uplink transmission signal, for example: if the UE does not need to measure the SSB overlapping with the uplink transmission signal, the target uplink transmission signal is determined from the uplink transmission signal according to 1) -4) in the first predefined rule.

In some embodiments, the first predefined rule only includes any one of the rules, and the UE may determine the target uplink transmission signal directly according to the rule.

In some other embodiments, the first predefined rule includes a plurality of rules, and the target uplink transmission signal may be determined by, but not limited to, the following manners:

1) Determining the target uplink transmission signal based on a default first predefined rule.

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

2) The UE determines a target uplink transmission signal based on a first predefined rule notified by the network equipment.

Correspondingly, before step S401, the network device further sends information characterizing the notification first predefined rule to the UE.

In implementation, the network device may send, to the UE, RRC signaling or MAC CE carrying the information characterizing the notification first predefined rule, where the information characterizing the notification first predefined rule is used to notify the UE of which first predefined rule is used to determine the target uplink transmission signal.

In this embodiment, the HD-FDD UE can determine a target uplink transmission signal from the uplink transmission signals more conveniently according to a first predefined rule, and when the uplink transmission signal overlaps with the SSB in the time domain, the UE can still send the target uplink transmission signal in the overlapping symbol, thereby improving the utilization rate of uplink resources.

In some optional embodiments, 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 a second predefined rule.

Fig. 4B is an interaction flowchart of a fourth signal transmission method provided in the embodiment of the present application, and as shown in fig. 4B, the method may include:

step S403: and if the downlink transmission signal and the valid RO are overlapped in the time domain, the HD-FDD UE and the network equipment determine a target downlink transmission signal from the downlink transmission signal according to a second predefined rule.

Step S404: and the network equipment sends the target downlink transmission signal to the UE in the overlapped symbols.

Correspondingly, the UE receives the target downlink transmission signal in the overlapped symbols.

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

1) And determining the dynamic downlink transmission signal as the target downlink transmission signal.

The dynamic downlink transmission signal includes a downlink transmission signal corresponding to DCI sent by the network device. The network device usually determines whether to schedule or trigger the downlink transmission signal through DCI according to the instant factors such as the service requirement of the UE and the overall load of the network, so that the dynamic downlink transmission signal is usually important. When the downlink transmission signal overlaps with the valid RO in the time domain, the UE still receives the more important downlink transmission signal scheduled or triggered by the DCI in the overlapped symbol.

Illustratively, the dynamic downlink transmission signal includes at least one of the following downlink transmission signals:

PDCCH；

PDSCH scheduled by DCI;

an aperiodic CSI-RS triggered by the DCI;

a first SPS-PDSCH in the semi-persistent scheduled SPS-PDSCH scheduled by the DCI;

and all SPS-PDSCHs scheduled by the DCI.

2) And determining a second preset type of downlink transmission signal as the target downlink transmission signal.

The PDCCH carries DCI, and the importance of the PDCCH may be higher than PDSCH for carrying data and CSI-RS for channel state detection. Based on this, the second preset category may include PDCCH.

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

3) And determining the dynamic downlink transmission signal of the second preset type as the target downlink transmission signal.

Also taking the dynamic downlink transmission signal and the second predetermined type as an example, the target downlink transmission signal includes: a signal transmitted through the PDCCH.

4) And determining part or all of the dynamic downlink transmission signal and the second preset type downlink transmission signal as the target downlink transmission signal.

Also taking the dynamic downlink transmission signal and the second preset type as examples, the target downlink transmission signal includes at least one of the following:

PDCCH；

PDSCH scheduled by DCI;

an aperiodic CSI-RS triggered by the DCI;

and all SPS-PDSCHs scheduled by the DCI.

5) If the UE does not need to send the PRACH signal in the valid RO overlapped with the downlink transmission signal, determining part or all of the downlink transmission signal as the target downlink transmission signal.

The network device may trigger the UE to send a PRACH signal in the valid RO through DCI, for the purpose of resynchronization. Thus, the network device instructs the UE to transmit PRACH signals in some valid ROs and not in others.

For example, if the UE does not need to transmit the PRACH signal in the valid RO overlapped with the downlink transmission signal, part or all of the downlink transmission signal is determined as the target downlink transmission signal, for example: if the UE does not need to send the PRACH signal in the valid RO overlapped with the downlink transmission signal, according to 1) -4) in the second predefined rule, determining the target downlink transmission signal from the downlink transmission signals.

In some embodiments, the second predefined rule only includes any one of the rules, and the UE and the network device may determine the target downlink transmission signal directly according to the rule.

In some other embodiments, the second predefined rule includes a plurality of rules, and the UE and the network device may determine the target downlink transmission signal based on a default second predefined rule. In this scenario, the second predefined rules include a default second predefined rule and at least one non-default second predefined rule.

Or the UE determines the target downlink transmission signal based on a second predefined rule notified by the network equipment.

Correspondingly, before step S403, the network device further sends information characterizing the notification second predefined rule to the UE.

In implementation, the network device may send, to the UE, an RRC signaling or a MAC CE carrying the information indicating the second predefined rule, where the information indicating the second predefined rule is used to inform the UE of which second predefined rule the UE determines the target downlink transmission signal based on.

In this embodiment, according to the second predefined rule, the target downlink transmission signal can be determined from the downlink transmission signals more conveniently, and when the downlink transmission signal overlaps with the valid RO in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, thereby improving the utilization rate of downlink resources.

In some optional embodiments, the network device further indicates the target uplink transmission signal to the UE, and correspondingly, the UE determines the target uplink transmission signal according to the indication of the network device.

Fig. 5A is an interaction flowchart of a fifth signal transmission method according to an embodiment of the present application, and as shown in fig. 5A, the method may include:

step S501: and the network equipment transmits RRC signaling or MAC CE carrying the first indication information to the UE of the HD-FDD.

Step S502: and if the uplink transmission signal and the SSB are overlapped on the time domain, the UE determines a target uplink transmission signal from the uplink transmission signal based on the first indication information.

Step S503: and the UE sends the target uplink transmission signal to network equipment in the overlapped symbols.

In this embodiment, the specific indication content of the first indication information is not limited, for example:

1) The first indication information is used for indicating whether all uplink transmission signals are the target uplink transmission signals.

Illustratively, the first indication information indicates that all uplink transmission signals are target uplink transmission signals (the UE always transmits uplink transmission signals in overlapped symbols); or the first indication information indicates that all uplink transmission signals are not the target uplink transmission signal (the UE does not always send the uplink transmission signal in the overlapped symbol).

2) The first indication information is used for indicating a set of uplink transmission signals belonging to the target uplink transmission signal.

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

In some other embodiments, the first indication information may also indicate a set of uplink transmission signals, where uplink transmission signals belonging to the set of uplink transmission signals are not target uplink transmission signals (the UE does not transmit the uplink transmission signals in the overlapped symbols), and uplink transmission signals not belonging to the set of uplink transmission signals are target uplink transmission signals (the UE transmits the uplink transmission signals in the overlapped symbols).

The two equivalent methods may be selected according to an actual application scenario, which is not specifically limited in this embodiment.

3) The first indication information is used for indicating whether each uplink transmission signal is the target uplink transmission signal.

For example, the network device may independently indicate "send" or "not send" of each uplink transmission signal through the first indication information, where if the first indication information indicates "send" of a certain uplink transmission signal, the uplink transmission signal is a target uplink transmission signal, and if the first indication information indicates "not send" of a certain uplink transmission signal, the uplink transmission signal is not a target uplink transmission signal. In addition, if a certain uplink transmission signal is not configured with RRC signaling or MAC CE, the uplink transmission signal is not the target uplink transmission signal, i.e., the UE does not transmit the uplink transmission signal in the overlapped symbols.

In this embodiment, the network device can more flexibly configure the target uplink transmission signal by sending the RRC signaling or the MAC CE to the HD-FDD UE, and when the uplink transmission signal overlaps with the SSB in the time domain, the UE can still send the target uplink transmission signal in the overlapped symbol, thereby improving the utilization rate of the uplink resource.

In some optional embodiments, the network device further indicates the target downlink transmission signal to the UE, and correspondingly, the UE determines the target downlink transmission signal according to the indication of the network device.

Fig. 5B is an interaction flowchart of a sixth signal transmission method according to an embodiment of the present application, and as shown in fig. 5B, the method may include:

step S504: and the network equipment transmits RRC signaling or MAC CE carrying the third indication information to the UE of the HD-FDD.

Step S505: and if the downlink transmission signal is overlapped with the valid RO in the time domain, the UE determines a target downlink transmission signal from the downlink transmission signals based on the third indication information.

Step S506: and the network equipment sends the target downlink transmission signal to the UE in the overlapped symbols.

In this embodiment, the specific indication content of the third indication information is not limited, for example:

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

Illustratively, the third indication information indicates that all downlink transmission signals are target downlink transmission signals (the UE always receives downlink transmission signals in overlapped symbols); or the third indication information indicates that all downlink transmission signals are not the target downlink transmission signal (the UE does not always receive the downlink transmission signal in the overlapped symbol).

2) The third indication information is used for indicating a set of downlink transmission signals belonging to the target downlink transmission signal.

In some embodiments, the third indication information indicates a set of downlink transmission signals, downlink transmission signals belonging to the set of downlink transmission signals are target downlink transmission signals (the downlink transmission signals are received by the UE in the overlapped symbols), and downlink transmission signals not belonging to the set of downlink transmission signals are not target downlink transmission signals (the downlink transmission signals are not received by the UE in the overlapped symbols).

In some other embodiments, the third indication information indicates a set of downlink transmission signals, downlink transmission signals belonging to the set of downlink transmission signals are not target downlink transmission signals (UE does not receive the downlink transmission signals in the overlapped symbols), and downlink transmission signals not belonging to the set of downlink transmission signals are target downlink transmission signals (UE receives the downlink transmission signals in the overlapped symbols).

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

For example, the network device may independently indicate "receive" or "not receive" of each downlink transmission signal through the third indication information, where if the third indication information indicates "receive" of a certain downlink transmission signal, the downlink transmission signal is a target downlink transmission signal, and if the third indication information indicates "not receive" of a certain downlink transmission signal, the downlink transmission signal is not a target downlink transmission signal. In addition, if a certain downlink transmission signal is not configured with RRC signaling or MAC CE, the downlink transmission signal is not a target downlink transmission signal, that is, the UE does not receive the downlink transmission signal in an overlapped symbol.

In this embodiment, the network device can more flexibly configure the target downlink transmission signal by sending the RRC signaling or the MAC CE to the HD-FDD UE, and when the downlink transmission signal overlaps with the SSB in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, thereby improving the utilization rate of the downlink resource.

Fig. 6A is an interaction flowchart of a seventh signal transmission method according to an embodiment of the present application, and as shown in fig. 6A, the interaction flowchart may include:

step S601: and the network equipment sends DCI carrying the second indication information to the UE of the HD-FDD.

Step S602: and if the uplink transmission signal is overlapped with the SSB in the time domain, the UE determines a target uplink transmission signal in the dynamic uplink transmission signals based on the second indication information.

The dynamic uplink transmission signal is an uplink transmission signal corresponding to the DCI in an uplink transmission signal overlapped with the SSB. For the dynamic uplink transmission signal, reference may be made to the above embodiments, and details are not described herein.

Step S603: and the UE sends the target uplink transmission signal to network equipment in the overlapped symbols.

For example, a specific bit or an indication field in the DCI is the second indication information, that is, the specific bit or the indication field is used to indicate whether a corresponding dynamic uplink transmission signal is a target uplink signal. For example:

1) The DCI includes a field or an indication field of 1 bit, and the bit indicates whether the corresponding dynamic uplink transmission signal is a target uplink signal using different values. Specifically, the bit may take a value of 0 or 1, and when the value is 0, the representation is not sent, that is, the corresponding dynamic uplink transmission signal is indicated not to be the target uplink signal; and when the value is 1, representing sending, namely indicating that the corresponding dynamic uplink transmission signal is a target uplink signal.

2) A field or indication field in the DCI includes N (N is a positive integer greater than 1) bits that can collectively represent 2^ N states, where M of the 2^ N states (M <2^ N) represent no transmission and the other (2 ^ N-M) states represent transmission.

As described above, in some embodiments, the dynamic uplink transmission signal includes the first PUSCH among CG-PUSCHs activated by DCI, and 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 PUSCH other than the first PUSCH in the CG-PUSCH is an inactive uplink transmission signal, and the inactive uplink transmission signal may be directly determined as not belonging to the target uplink signal, or the target uplink transmission signal may be determined from the inactive uplink transmission signal by the following embodiment.

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

Through the embodiment, only the target uplink transmission signal in the dynamic uplink transmission signals is determined. In some optional embodiments, the target uplink transmission signal in the non-dynamic uplink transmission signals (the non-dynamic uplink transmission signal is an uplink transmission signal other than the dynamic uplink transmission signal in the uplink transmission signals overlapped with the SSB) may be determined by:

the first determination method: and determining the target uplink transmission signal from the non-dynamic uplink transmission signals according to a third predefined rule.

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

1) And determining a first preset type of non-dynamic uplink transmission signal as the target uplink transmission signal.

2) And if the UE does not need to measure the SSB overlapped with the uplink transmission signal, determining the non-dynamic uplink transmission signal as the target uplink transmission signal.

3) If the UE does not need to measure the SSB overlapped with the uplink transmission signal, determining a first preset type of non-dynamic uplink transmission signal as the target uplink transmission signal;

the first preset type may refer to the first preset type in the first predefined rule, and for the case that the third predefined rule includes only any rule or includes multiple rules, reference may be made to the above embodiments, which are not described herein again.

The second determination method is as follows: and determining the target uplink transmission signal from the non-dynamic uplink transmission signals according to RRC signaling sent by the network equipment or first indication information in the MAC CE.

The specific implementation of the second determination manner may refer to the above-mentioned embodiment of fig. 5A, and the difference is that the embodiment of fig. 5A determines the target uplink transmission signal from all uplink transmission signals overlapped with the SSB, and the second determination manner determines the target uplink transmission signal from dynamic uplink transmission signals overlapped with the SSB, which is not described herein again.

In this embodiment, the network device dynamically indicates the target uplink transmission signal by sending DCI carrying the second indication information to the HD-FDD UE, and is more suitable for scenarios where the UE repeatedly sends PUSCH signals, PUCCH signals, and the like. When the uplink transmission signal and the SSB are overlapped in the time domain, the UE can still send the target uplink transmission signal in the overlapped symbol, thereby improving the utilization rate of the uplink resource.

Fig. 6B is an interaction flowchart of an eighth signal transmission method according to an embodiment of the present application, and as shown in fig. 6B, the method may include:

step S604: and the network equipment sends DCI carrying the fourth indication information to the UE of the HD-FDD.

Step S605: and if the downlink transmission signal is overlapped with the valid RO in the time domain, the UE determines a target downlink transmission signal in the dynamic downlink transmission signals based on the fourth indication information.

The dynamic downlink transmission signal is a downlink transmission signal corresponding to the DCI in the downlink transmission signal overlapped with the valid RO. For the dynamic downlink transmission signal, reference may be made to the foregoing embodiments, and details are not described herein again.

Step S606: and the network equipment sends the target downlink transmission signal to the UE in the overlapped symbols.

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

1) The DCI includes a 1-bit field or an indication field, where the bit indicates whether a corresponding dynamic downlink transmission signal is a target downlink signal using different values. Specifically, the bit may be set to 0 or 1, and when the bit is set to 0, the bit is not received, that is, the corresponding dynamic downlink transmission signal is not indicated as the target downlink signal; and when the value is 1, representing reception, namely indicating that the corresponding dynamic downlink transmission signal is a target downlink signal.

2) A field or indication field in the DCI includes N (N is a positive integer greater than 1) bits that can collectively represent 2^ N states, where M of the 2^ N states (M <2^ N) indicates no reception and the other (2 ^ N-M) states indicate reception.

As described above, in some embodiments, the dynamic downlink transmission signal includes the first SPS-PDSCH among the SPS-PDSCHs scheduled by the DCI, and 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 SPS-PDSCHs other than the first SPS-PDSCH in the SPS-PDSCH are non-dynamic downlink transmission signals, and the non-dynamic downlink transmission signals may be directly determined as downlink transmission signals not belonging to the target downlink signal, or the target downlink transmission signals may be determined from the non-dynamic downlink transmission signals by the following embodiment.

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

Only the target downlink transmission signal in the dynamic downlink transmission signals is determined through the embodiment. In some optional embodiments, the target downlink transmission signal in the non-dynamic downlink transmission signal (the non-dynamic downlink transmission signal is a downlink transmission signal overlapped with valid RO, and is a downlink transmission signal other than the dynamic downlink transmission signal) may be determined as follows:

the first determination method: and determining the target downlink transmission signal from the non-dynamic uplink transmission signals according to a fourth predefined rule.

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

1) And determining a second preset type of non-dynamic downlink transmission signal as the target downlink transmission signal.

2) And if the UE does not need to send the PRACH signal in the valid RO overlapped with the downlink transmission signal, determining the non-dynamic downlink transmission signal as the target downlink transmission signal.

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

the second preset type may refer to a second preset type in the second predefined rule, and for the case that the second predefined rule includes only any rule or includes multiple rules, reference may be made to the above embodiments, which are not described herein again.

The second determination method is as follows: and determining the target downlink transmission signal from the non-dynamic downlink transmission signal according to the RRC signaling sent by the network equipment or the third indication information in the MAC CE.

The second determination manner can be specifically implemented with reference to the above-mentioned embodiment of fig. 5B, and only differs from the embodiment of fig. 5B in that the target downlink transmission signal is determined from all downlink transmission signals overlapped with valid RO, and the second determination manner is determined from dynamic downlink transmission signals overlapped with valid RO, and details thereof are not repeated here.

In this embodiment, the network device dynamically indicates the target downlink transmission signal by sending DCI carrying the fourth indication information to the HD-FDD UE, and is more suitable for a scenario where the network device repeatedly sends the PDSCH. When the downlink transmission signal and the SSB are overlapped in the time domain, the UE can still receive the target downlink transmission signal in the overlapped symbol, thereby improving the utilization rate of the downlink resource.

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

And if the downlink transmission signal and the valid RO are overlapped on the time domain, receiving a target downlink transmission signal in the overlapped symbol.

the dynamic uplink transmission signal includes an uplink transmission signal corresponding to DCI sent by the network device, and the first preset category includes at least one of a PUCCH, a PRACH, and a PUSCH for carrying UCI.

Since the method is a method corresponding to the HD-FDD UE, specific implementation manners of the method may refer to the above embodiments, and repeated details are not described herein.

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

As an optional implementation, the method further comprises:

Indicating the target uplink transmission signal to the UE.

As an optional implementation, the method further comprises:

And indicating the target downlink transmission signal to the UE.

if the UE does not need to send the PRACH signal in the valid RO overlapped with the downlink transmission signal, determining part or all of the downlink transmission signal as the target downlink transmission signal;

Since the method is a method corresponding to the network device, the specific implementation of the method may refer to the above embodiment, and repeated parts are not described again.

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

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 701.

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

The processes disclosed in the embodiments of the present application may be applied to the processor 701, or implemented by the processor 701. In implementation, the steps of the signal transmission method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the signal transmission method in combination with the hardware thereof.

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

As shown in fig. 8, a network device provided for the embodiment of the present application includes: a processor 801, a memory 802, a transceiver 803, and a bus interface 804.

The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 may store data used by the processor 801 in performing operations. The transceiver 803 is used for receiving and transmitting data under the control of the processor 801.

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

The processes disclosed in the embodiments of the present application can be applied to the processor 801 or implemented by the processor 801. In implementation, the steps of the signal transmission method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The processor 801 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the signal transmission method in combination with the hardware thereof.

Specifically, the processor 801 is configured to read the computer instructions in the memory 802, and perform the following operations:

As an optional implementation, the operations further comprise:

Indicating the target uplink transmission signal to the UE.

As an optional implementation, the operations further comprise:

And indicating the target downlink transmission signal to the UE.

sending DCI carrying fourth indication information to the UE so that the UE determines a target downlink transmission signal in dynamic downlink transmission signals based on the fourth indication information; the dynamic downlink transmission signal is a downlink transmission signal corresponding to the DCI in the downlink transmission signal overlapped with the valid RO.

As shown in fig. 9, an HD-FDD UE900 provided in the embodiment of the present application includes:

a first sending module 901, configured to send a target uplink transmission signal in an overlapped symbol if the uplink transmission signal overlaps with an SSB in a time domain; and/or

A first receiving module 902, configured to receive a target downlink transmission signal in a downlink transmission signal in an overlapped symbol if the downlink transmission signal overlaps with a valid RO in a time domain.

As an optional implementation manner, the first sending module 901 is configured to determine the target uplink transmission signal by:

As an optional implementation manner, the determining, by the first sending module 901, the target uplink transmission signal according to the indication of the network device includes:

As an optional implementation manner, the first receiving module 902 is configured to determine the target downlink transmission signal by:

As an optional implementation manner, the determining, by the first receiving module 902, the target downlink transmission signal according to an instruction of a network device includes:

As shown in fig. 10, a network device 1000 provided for the embodiment of the present application includes:

a second receiving module 1001, configured to receive, if an uplink transmission signal overlaps with a synchronization signal block SSB in a time domain, a target uplink transmission signal in the uplink transmission signal that is sent by a HD-FDD UE in an overlapping symbol; and/or

A second sending module 1002, configured to send, to the HD-FDD UE, a target downlink transmission signal in the downlink transmission signal in an overlapped symbol if the downlink transmission signal overlaps with the valid RO in the time domain.

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

or the second sending module 1002 is further configured to indicate the target uplink transmission signal to the UE.

As an optional implementation manner, the indicating, by the second sending module 1002, the target uplink transmission signal to the UE includes:

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

And indicating the target downlink transmission signal to the UE.

As an optional implementation manner, the indicating, by the second sending module 1002, the target downlink transmission signal to the UE includes:

Embodiments of the present application provide a storage medium storing computer-executable instructions for causing a computer to perform a signal transmission method performed by a UE such as the above HD-FDD.

The embodiment of the application provides a storage medium, which stores computer-executable instructions for causing a computer to execute the signal transmission method executed by the network device.

The storage medium may be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will 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 may 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, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the application may 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 this application, a computer-usable or computer-readable medium may 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.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A signal transmission method is applied to User Equipment (UE) of half duplex-frequency division duplex (HD-FDD), and the method comprises the following steps:

if the uplink transmission signal and the synchronous signal block SSB are overlapped on the time domain, a target uplink transmission signal in the uplink transmission signal is sent in an overlapped symbol; and/or

And if the downlink transmission signal is overlapped with the valid RO on the time domain, receiving a target downlink transmission signal in the overlapped symbol.

2. The method of claim 1, wherein the target uplink transmission signal is determined by:

3. The method of claim 2, wherein the first predefined rule includes some or all of:

the dynamic uplink transmission signal includes an uplink transmission signal corresponding to 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 for carrying uplink control information UCI.

4. The method of claim 2, wherein determining the target uplink transmission signal based on an indication from a network device comprises:

and determining the target uplink transmission signal according to a Radio Resource Control (RRC) signaling sent by the network equipment or first indication information in a Media Access Control (MAC) Cell (CE).

5. The method of claim 4,

the first indication information is used for indicating whether all uplink transmission signals are the target uplink transmission signals; or

6. The method of claim 2, wherein determining the target uplink transmission signal based on an indication from a network device comprises:

7. The method of claim 1, wherein the target downlink transmission signal is determined by:

8. The method of claim 7, wherein the second predefined rule includes some or all of:

the dynamic downlink transmission signal includes a downlink transmission signal corresponding to DCI sent by the network device, and the second preset type includes a physical downlink control channel PDCCH.

9. The method of claim 7, wherein determining the target downlink transmission signal based on an indication from a network device comprises:

10. The method of claim 9,

the third indication information is used for indicating whether all downlink transmission signals are the target downlink transmission signals; or alternatively

11. The method of claim 7, wherein determining the target downlink transmission signal based on an indication from a network device comprises:

12. A signal transmission method, applied to a network device, the method comprising:

if the uplink transmission signal and the synchronous signal block SSB are overlapped on the time domain, receiving a target uplink transmission signal in the uplink transmission signal sent by User Equipment (UE) of half-duplex-frequency division duplex (HD-FDD) in an overlapped symbol; and/or

And if the downlink transmission signal is overlapped with the valid RO of the effective physical random access channel time domain, sending a target downlink transmission signal in the downlink transmission signal to the HD-FDD UE in the overlapped symbol.

13. The method of claim 12, wherein the method further comprises:

Indicating the target uplink transmission signal to the UE.

14. The method of claim 13, wherein the first predefined rule includes some or all of:

15. The method of claim 13, wherein indicating the target uplink transmission signal to the UE comprises:

and sending Radio Resource Control (RRC) signaling or Media Access Control (MAC) information element (CE) carrying first indication information to the UE so that the UE determines the target uplink transmission signal based on the first indication information.

16. The method of claim 15,

the first indication information is used for indicating whether all uplink transmission signals are the target uplink transmission signals or not; or

17. The method of claim 13, wherein indicating the target uplink transmission signal to the UE comprises:

18. The method of claim 12, wherein the method further comprises:

And indicating the target downlink transmission signal to the UE.

19. The method of claim 18, wherein the second predefined rule includes some or all of:

20. The method of claim 18, wherein indicating the target downlink transmission signal to the UE comprises:

21. The method of claim 20,

the third indication information is used for indicating whether all downlink transmission signals are the target downlink transmission signals; or

22. The method of claim 18, wherein indicating the target downlink transmission signal to the UE comprises:

23. A user equipment, UE, for half duplex-frequency division duplex, HD-FDD, the UE comprising: a processor and a memory;

the memory to store computer instructions;

24. The UE of claim 23, wherein the target uplink transmission signal is determined by:

25. The UE of claim 24, wherein the first predefined rule includes some or all of:

26. The UE of claim 24, wherein determining the target uplink transmission signal according to an indication from a network device comprises:

27. The UE of claim 26,

28. The UE of claim 24, wherein determining the target uplink transmission signal according to an indication from a network device comprises:

29. The UE of claim 23, wherein the target downlink transmission signal is determined by:

30. The UE of claim 29, wherein the second predefined rule includes some or all of:

31. The UE of claim 29, wherein determining the target downlink transmission signal based on an indication from a network device comprises:

32. The UE of claim 31,

33. The UE of claim 29, wherein determining the target downlink transmission signal based on an indication from a network device comprises:

34. A network device, comprising: a processor and a memory;

the memory storing computer instructions;

the processor is used for reading the computer instruction and executing the following operations:

35. The network device of claim 34, wherein the operations further comprise:

Indicating the target uplink transmission signal to the UE.

36. The network device of claim 35, wherein the first predefined rule includes some or all of:

37. The network device of claim 35, wherein indicating the target uplink transmission signal to the UE comprises:

38. The network device of claim 37,

39. The network device of claim 35, wherein indicating the target uplink transmission signal to the UE comprises:

40. The network device of claim 34, wherein the operations further comprise:

And indicating the target downlink transmission signal to the UE.

41. The network device of claim 40, wherein the second predefined rule includes some or all of:

42. The network device of claim 40, wherein indicating the target downlink transmission signal to the UE comprises:

43. The network device of claim 42,

44. The network device of claim 40, wherein indicating the target downlink transmission signal to the UE comprises:

45. A user equipment, UE, for half duplex-frequency division duplex, HD-FDD, the UE comprising:

a first sending module, configured to send a target uplink transmission signal in an overlapped symbol if the uplink transmission signal overlaps with a synchronization signal block SSB in a time domain; and/or

A first receiving module, configured to receive a target downlink transmission signal in a downlink transmission signal in an overlapped symbol if the downlink transmission signal overlaps with an effective physical random access channel opportunity valid RO in a time domain.

46. A network device, characterized in that the network device comprises:

a second receiving module, configured to receive a target uplink transmission signal in the uplink transmission signal sent by a user equipment UE of half duplex-frequency division duplex HD-FDD in an overlapped symbol if the uplink transmission signal overlaps with a synchronization signal block SSB in a time domain; and/or

A second sending module, configured to send a target downlink transmission signal in the downlink transmission signal to the HD-FDD UE in an overlapped symbol if the downlink transmission signal overlaps with the valid RO in the time domain.

47. A storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-22.