CN114175793A

CN114175793A - Wireless communication method and terminal device

Info

Publication number: CN114175793A
Application number: CN201980098931.0A
Authority: CN
Inventors: 方昀; 徐婧
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-02
Filing date: 2019-10-02
Publication date: 2022-03-11
Also published as: WO2021062869A1

Abstract

The embodiment of the application provides a wireless communication method and terminal equipment, and the usable symbol of each transmission is determined by explicitly indicating the application range of each transmission of repeated transmission through a dynamic SFI, so that the network equipment and the terminal equipment can be ensured to have consistent understanding on the usable symbol of each transmission. The wireless communication method includes: the terminal equipment monitors a first SFI at a first time domain position; the terminal device determines the flexible symbol transmission direction in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in the repeated transmission, wherein part or all of the repeated transmission is positioned on the flexible symbol in the first time domain resource.

Description

Wireless communication method and terminal device

Technical Field

The present embodiments relate to the field of communications, and in particular, to a wireless communication method and a terminal device.

Background

The New Radio (NR) frame structure uses slots as basic granularity, and symbols in each slot are divided into three categories: downlink (DL) symbols, Uplink (UL) symbols, and flexible (flexible) symbols. The NR frame structure configuration is flexibly configured by combining a semi-static Radio Resource Control (RRC) configuration and a dynamic Downlink Control Information (DCI) and a dynamic Slot Format Indication (SFI) configuration. In NR, multiple repeated transmissions may need to span multiple symbols (symbols) or multiple slots (slots) for transmission, which may lead to a situation where the understanding of the effective time of the dynamic SFI by the terminal device and the network device is inconsistent, thereby achieving normal transmission wirelessly.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and terminal equipment, and the usable symbol of each transmission is determined by explicitly indicating the application range of each transmission of repeated transmission through a dynamic SFI, so that the network equipment and the terminal equipment can be ensured to have consistent understanding on the usable symbol of each transmission.

In a first aspect, a wireless communication method is provided, and the method includes:

the terminal equipment monitors a first SFI at a first time domain position;

and the terminal equipment determines the transmission direction of the flexible symbols in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in multiple repeated transmissions, wherein part or all of the multiple repeated transmissions are positioned on the flexible symbols in the first time domain resource.

In a second aspect, a terminal device is provided, which is configured to perform the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In a third aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.

In a fourth aspect, an apparatus is provided for implementing the method of the first aspect or its implementation manners.

Specifically, the apparatus includes: a processor configured to invoke and run the computer program from the memory, so that the device on which the apparatus is installed performs the method according to the first aspect or its implementations.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, which causes a computer to execute the method of the first aspect or its implementations.

A sixth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of the first aspect or its implementations.

In a seventh aspect, a computer program is provided, which, when run on a computer, causes the computer to perform the method of the first aspect or its implementations.

Through the technical scheme, the terminal equipment determines the transmission direction of the flexible symbol in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in the repeated transmission, so that the transmission direction of the flexible symbol in each transmission of the repeated transmission can be determined, the available symbol in each transmission can be further determined, and the network equipment and the terminal equipment can understand the available symbol in each transmission consistently.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of a multi-slot repeat transmission provided in an embodiment of the present application.

Fig. 3 is a schematic flow chart of a wireless communication method provided according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a dynamic SFI indication flexible symbol provided in an embodiment of the present application.

Fig. 5 is a schematic diagram of another dynamic SFI indication flexible symbol provided by an embodiment of the present application.

Fig. 6 is a schematic diagram of another dynamic SFI indication flexible symbol provided by an embodiment of the present application.

Fig. 7 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort with respect to the embodiments in the present application belong to the protection scope of the present application.

The embodiment of the application can be applied to various communication systems, such as: global System for Mobile communications (GSM) System, Code Division Multiple Access (CDMA) System, Wideband Code Division Multiple Access (WCDMA) System, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) System, LTE-a System, New Radio (NR) System, Evolution System of NR System, LTE-a System over unlicensed spectrum, NR (NR-b) System, UMTS (Universal Mobile telecommunications System), UMTS (UMTS) System, WLAN-b System over unlicensed spectrum, WiFi-b System, Wireless Local Area Network (WLAN) System, Wireless Local Area network (WiFi) System, GPRS (General Packet Radio Service, GPRS) System, GPRS (GPRS) System, LTE-b System, LTE-a System, NR System, LTE-b System over unlicensed spectrum, and LTE-b System over unlicensed spectrum, Next generation communication systems or other communication systems, etc.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

The frequency spectrum of the application is not limited in the embodiment of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum and may also be applied to an unlicensed spectrum.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The embodiments of the present application are described in conjunction with a terminal device and a network device, where: a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc. The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a next generation communication system, for example, a terminal device in an NR Network or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access Point, or a network device or a Base Station (gNB) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a PLMN network for future evolution.

In this embodiment of the present application, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

The NR frame structure takes slots as basic granularity, and symbols in each slot are divided into three categories: downlink symbols, uplink symbols, and flexible symbols. The NR frame structure configuration is flexibly configured by combining the semi-static radio resource control configuration and the dynamic downlink control information configuration. Modification of the frame structure can be realized by both RRC high layer configuration and DCI physical layer configuration in NR. When different configurations modify the frame structure, once a conflict occurs, the principle that the various configurations overlap with each other needs to be determined.

In NR, the semi-static uplink and downlink configuration, the semi-static measurement configuration, and the mutual coverage rule of the dynamic SFI and DCI are as follows:

the uplink and downlink of the semi-static uplink and downlink configuration can not be modified, and the flexible symbols of the semi-static uplink and downlink configuration can be changed by the semi-static measurement configuration, the dynamic SFI and the DCI configuration.

The uplink and downlink configurations in the semi-static measurement configuration can be changed by the dynamic SFI and DCI configurations, and once the change occurs, the semi-static measurement related behavior is terminated.

The data transmission of the DCI configuration cannot be compatible with the uplink and downlink conflicts of the SFI configuration, but the flexible part in the SFI configuration can be modified.

In order to improve the Transmission reliability of a Physical Downlink Shared Channel (PDSCH), NR introduces repeated Transmission of the PDSCH, that is, the PDSCH carrying the same data is transmitted through different time slots/Transmission Reception Points (TRPs)/redundancy versions and the like for multiple times, thereby obtaining diversity gain and reducing the false detection probability. Specifically, the repeated transmission may be performed in multiple time slots (as shown in fig. 3), or may be performed in multiple TRPs. For multi-slot repetition, one DCI may schedule multiple PDSCHs carrying the same data to be transmitted on consecutive multiple slots, using the same frequency domain resources. For the repetition of multiple TRPs, PDSCHs carrying the same data are transmitted on different TRPs respectively, and different beams may be adopted (at this time, multiple TCI states need to be indicated in one DCI, and each Transmission Configuration Indicator (TCI) state is used for one-time repetition Transmission). The repetition of multiple TRPs may also be combined with a multi-slot approach, with consecutive slots being used for transmission and different TRPs being used for transmission in different slots.

In one slot, there may be an uplink symbol, a downlink symbol, and a flexible symbol. The uplink symbol, the downlink symbol, and the flexible symbol may be indicated by a semi-static high-level signaling, and for the semi-static indicated flexible symbol (flexible symbol), the flexible symbol may be indicated as the uplink symbol, the downlink symbol, or the flexible symbol by using dynamic DCI. For the transmission of a Physical Uplink Shared Channel (PUSCH) of a high-reliability Low-Latency Communication (URLLC), it may need to span multiple symbols or multiple slots for transmission, and when a terminal receives a dynamic SFI, it may be at any position of the PUSCH transmission of the URLLC, if the effective times of the dynamic SFI are not understood to be consistent by the terminal device and the network device, it will cause that the PUSCH cannot be transmitted or received at the correct time, and thus the performance requirements of the URLLC on high-reliability Low Latency cannot be met.

The following describes in detail a scheme for determining a flexible symbol transmission direction in multiple repeated transmissions based on a dynamic SFI, which is designed in the present application for the above technical problem.

Fig. 3 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, and as shown in fig. 3, the method 200 may include some or all of the following:

s210, the terminal equipment monitors a first SFI at a first time domain position;

s220, the terminal device determines the flexible symbol transmission direction in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in multiple repeated transmissions, wherein part or all of the multiple repeated transmissions are located on the flexible symbols in the first time domain resource.

For example, the terminal device listens for a first SFI transmitted by the network device at the first time domain location.

Optionally, the first time domain resource is a semi-statically configured time domain resource.

It should be noted that, after the step S220 is executed, the flexible symbol transmission direction in the first time domain resource may be uplink or downlink, and certainly, in some cases, the flexible symbol in the first time domain resource may still be a flexible symbol.

Optionally, in this embodiment of the present application, the first transmission is one of the following:

a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Downlink Shared Channel (PDSCH), and a Physical Downlink Control Channel (PDCCH).

That is, other ones of the plurality of repeated transmissions may coincide with the first transmission.

It should be noted that the first transmission may be a certain transmission in the multiple repeated transmissions, for example, the first transmission is a first transmission in the multiple repeated transmissions, and of course, the first transmission may also be a second transmission or a third transmission in the multiple repeated transmissions, which is not limited in this application.

Optionally, in this embodiment of the present application, the first SFI is one of the SFIs in a periodic SFI transmission. For example, the network device periodically sends the SFI to the terminal device. That is, listening to the time domain location of the SFI is a periodic resource.

Optionally, the first time domain location is configured by the network device, or the first time domain location is preconfigured.

Optionally, in this embodiment of the present application, the effective time of the first SFI is determined according to a first offset and/or a capability of the terminal device, where the first offset is an offset of the effective time of the dynamic SFI.

It should be noted that the capability of the terminal device may be, for example, the demodulation capability of the terminal device.

Optionally, the first offset is configured by the network device, or the first offset is preconfigured.

Optionally, as example 1, the step S220 may specifically be:

under the condition that the terminal device correctly receives the first SFI and the effective time of the first SFI is before the starting time of the first transmission, the terminal device determines the transmission direction of at least one flexible symbol corresponding to the multiple repeated transmissions according to the indication of the first SFI, where the at least one flexible symbol is a flexible symbol in the first time domain resource and is located within the effective time of the first SFI.

Optionally, as an example 2, the step S220 may specifically be:

and under the condition that the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is before the starting time of the first transmission, the terminal equipment determines the flexible symbols corresponding to the repeated transmission as flexible symbols.

Optionally, as an example 3, the step S220 may specifically be:

in case that the terminal device correctly receives the first SFI, and the effective time of the first SFI is after the start time of the first transmission,

the terminal device determines, according to the indication of the first SFI, transmission directions of M flexible symbols corresponding to transmission after the first transmission in the multiple repeated transmissions, where the M flexible symbols are flexible symbols located within an effective time of the first SFI in the first time domain resource, and M is a positive integer.

Optionally, as an example 4, the step S220 may specifically be:

and under the condition that the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is behind the starting time of the first transmission, the terminal equipment determines that the flexible symbol corresponding to the transmission after the first transmission in the repeated transmissions is a flexible symbol.

Optionally, in example 3 and/or example 4, further, the terminal device may further perform the following operations:

the terminal equipment monitors a second SFI on a second time domain position, wherein the SFI is information transmitted periodically, and the second SFI is the SFI of the previous period of the first SFI;

the terminal device determines, according to the monitoring result of the second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions, where the N flexible symbols are flexible symbols located within the effective time of the second SFI in the first time domain resource, and N is a positive integer.

For example, in a case that the terminal device correctly receives the second SFI, the terminal device determines, according to the indication of the second SFI, transmission directions of the N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions.

For another example, in a case that the terminal device does not correctly receive the second SFI, the terminal device determines that the flexible symbol corresponding to the first transmission and the transmission before the first transmission in the multiple repeated transmissions is a flexible symbol.

Optionally, the second time domain location is configured by the network device, or the second time domain location is preconfigured.

Optionally, the effective time of the second SFI is determined according to a second offset and/or the capability of the terminal device, where the second offset is an offset of the effective time of the dynamic SFI.

Optionally, the second offset is configured by the network device, or the second offset is preconfigured.

It should be noted that the second offset may be the same as or different from the first offset.

Optionally, as an example 5, the step S220 may specifically be:

under the condition that the terminal device does not correctly receive the first SFI, and the effective time of the first SFI is after the starting time of the first transmission, the terminal device determines, according to an indication of a second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions, where the SFI is information of periodic transmission, the second SFI is an SFI of a previous cycle of the first SFI, the N flexible symbols are flexible symbols located within the effective time of the second SFI in the first time domain resource, and N is a positive integer.

Optionally, in example 1 and/or example 3 above, the validation time of the first SFI may be configured by the network device, or the validation time of the first SFI may be preconfigured.

Optionally, in the above examples 3 to 5, the validation time of the second SFI may be configured by the network device, or the validation time of the second SFI may be preconfigured.

Optionally, in this embodiment of the present application, for a certain SFI, since the network device cannot determine whether the terminal device correctly receives the SFI, the network device needs to receive the SFI in a possible time domain resource according to two assumptions, namely correct reception of the SFI and incorrect reception of the SFI.

The wireless communication method 200 is described in detail below with reference to specific embodiments.

Optionally, as embodiment 1, as shown in fig. 4, the terminal device receives the dynamic SFI 1 at slot n-2k + m, and receives the dynamic SFI 2 at slot n-k. Wherein, the dynamic SFI 1 is used to indicate that the semi-static (semi-static) configuration is the transmission direction of the flexible symbol in a period of time after the slot n-2k + m, and the dynamic SFI 2 is used to indicate that the semi-static configuration is the transmission direction of the flexible symbol in a period of time after the slot n-k. The effective time of the dynamic SFI 1 is from slot n-2k + m + t to the first symbol of slot n, and the effective time of the dynamic SFI 2 is from the second symbol of slot n to a certain later time. Wherein the period of the dynamic SFI is k-m.

In embodiment 1, a terminal device receives a repeat transmission configured by a network device, where a repetition number of the repeat transmission is 2 times, and a time domain resource occupied by 2 times is started from a first symbol of slot n to a 10 th symbol of slot n.

Since the effective time of the dynamic SFI 2 is later than the starting position of the first transmission of the repeated transmission, all transmissions of the repeated transmission determine the transmission direction of the flexible symbol in the occupied time domain resource according to the indication of the last SFI (i.e. the dynamic SFI 1). In embodiment 1, the symbols 3 to 9 are all determined according to the indication of the dynamic SFI 1, that is, in the 2 times of repeated transmission, the transmission direction of the symbols 3 to 9 is U D, where "U" represents uplink, "D" represents downlink, and "F" represents flexible symbol.

Optionally, as embodiment 2, as shown in fig. 5, the terminal device receives the dynamic SFI 1 at slot n-2k + m, and receives the dynamic SFI 2 at slot n-k. Wherein, the dynamic SFI 1 is used to indicate that semi-static is configured as the transmission direction of the flexible symbol within a period of time after the slot n-2k + m, and the dynamic SFI 2 is used to indicate that semi-static is configured as the transmission direction of the flexible symbol within a period of time after the slot n-k. The effective time of the dynamic SFI 1 is from slot n-2k + m + t to the first symbol of slot n, and the effective time of the dynamic SFI 2 is from the second symbol of slot n to a certain later time. Wherein the period of the dynamic SFI is k-m.

In embodiment 2, a terminal device receives a repeat transmission configured by a network device, where a repetition number of the repeat transmission is 2 times, and a time domain resource occupied by 2 times is started from a first symbol of slot n to a 10 th symbol of slot n.

Since the effective time of the dynamic SFI 2 is later than the initial position of the first transmission of the repeated transmission but earlier than the initial position of the second transmission of the repeated transmission, the first transmission of the 2 times of repeated transmission determines the transmission direction of the flexible symbol in the occupied time domain resource according to the indication of the dynamic SFI 1, and the second transmission determines the transmission direction of the flexible symbol in the occupied time domain resource according to the indication of the dynamic SFI 2. In embodiment 2, for symbols 3 to 9, symbols 3 to 5 are determined as indicated by the dynamic SFI 1, and symbols 6 to 9 are determined as indicated by the dynamic SFI 2. That is, in the 2 repeated transmissions, the transmission direction of the symbols 3-9 is uuuuuuuu, where "U" represents uplink, "D" represents downlink, and "F" represents flexible symbol.

Optionally, as embodiment 3, as shown in fig. 6, the terminal device receives the dynamic SFI 1 in slot n-2k + m and listens to the dynamic SFI 2 in slot n-k, but does not receive the dynamic SFI 2 correctly. Wherein, the dynamic SFI 1 is used to indicate that semi-static is configured as the transmission direction of the flexible symbol within a period of time after slot n-2k + m. The effective time of the dynamic SFI 1 is from slot n-2k + m + t to the first symbol of slot n, and the effective time of the dynamic SFI 2 is from the second symbol of slot n to a certain later time. Wherein the period of the dynamic SFI is k-m.

In embodiment 3, a terminal device receives a repeat transmission configured by a network device, where a repetition number of the repeat transmission is 2 times, and a time domain resource occupied by 2 times is started from a first symbol of slot n to a 10 th symbol of slot n.

Since the effective time of the dynamic SFI 2 is later than the initial position of the first transmission of the repeated transmission but earlier than the initial position of the second transmission of the repeated transmission, the first transmission of the repeated transmission determines the transmission direction of the flexible symbol in the occupied time domain resource according to the indication of the dynamic SFI 1, and the second transmission determines the transmission direction of the flexible symbol in the occupied time domain resource according to the indication of the dynamic SFI 2. In embodiment 3, for symbols 3 to 9, symbols 3 to 5 are determined according to the indication of the dynamic SFI 1, but since the dynamic SFI 2 to be applied for the second transmission is not correctly received, the processing manner of data transmission of symbols 6 to 9 (i.e. symbols 6 to 9 or flexible symbols) according to the dynamic SFI 2 which is not correctly received is adopted. That is, in the 2 repeated transmissions, the transmission directions of the symbols 3 to 9 are U F, where "U" represents uplink and "F" represents flexible symbols.

Therefore, in this embodiment of the present application, the terminal device determines the transmission direction of the flexible symbol in the first time domain resource according to the monitoring result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions, so that the transmission direction of the flexible symbol in each transmission of the multiple repeated transmissions can be determined, and then the available symbol in each transmission can be determined, thereby ensuring that the network device and the terminal device understand the available symbol in each transmission consistently.

Fig. 7 shows a schematic block diagram of a terminal device 300 according to an embodiment of the application. As shown in fig. 7, the terminal device 300 includes:

a communication unit 310 for listening to a first SFI at a first time domain location;

a processing unit 320, configured to determine a flexible symbol transmission direction in a first time domain resource according to a listening result of the first SFI and a position relationship between an effective time of the first SFI and a start time of a first transmission in multiple repeated transmissions, where part or all of the multiple repeated transmissions are located on a flexible symbol in the first time domain resource.

Optionally, the processing unit 320 is specifically configured to:

and under the condition that the terminal equipment correctly receives the first SFI and the effective time of the first SFI is before the initial time of the first transmission, determining the transmission direction of at least one flexible symbol corresponding to the repeated transmission according to the indication of the first SFI, wherein the at least one flexible symbol is a flexible symbol in the effective time of the first SFI in the first time domain resource.

Optionally, the processing unit 320 is specifically configured to:

and under the condition that the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is before the initial time of the first transmission, determining that the flexible symbols corresponding to the repeated transmission are flexible symbols.

Optionally, the processing unit 320 is specifically configured to:

and determining, according to the indication of the first SFI, a transmission direction of M flexible symbols corresponding to a transmission after the first transmission in the multiple repeated transmissions, where the M flexible symbols are flexible symbols located within an effective time of the first SFI in the first time domain resource, and M is a positive integer.

Optionally, the processing unit 320 is specifically configured to:

and determining that a flexible symbol corresponding to transmission after the first transmission in the multiple repeated transmissions is a flexible symbol under the condition that the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is after the starting time of the first transmission.

Optionally, the communication unit 310 is further configured to monitor a second SFI at a second time domain location, where the SFI is information transmitted periodically, and the second SFI is an SFI of a previous period of the first SFI;

the processing unit 320 is further configured to determine, according to the monitoring result of the second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions, where the N flexible symbols are flexible symbols located in the effective time of the second SFI in the first time domain resource, and N is a positive integer.

Optionally, the processing unit 320 is specifically configured to:

under the condition that the terminal equipment correctly receives the second SFI, determining the transmission directions of the N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions according to the indication of the second SFI; or,

and under the condition that the terminal equipment does not correctly receive the second SFI, determining flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions as flexible symbols.

Optionally, the processing unit 320 is specifically configured to:

under the condition that the terminal equipment does not correctly receive the first SFI, and the effective time of the first SFI is after the starting time of the first transmission, determining the transmission directions of N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmission according to the indication of a second SFI, wherein the SFI is information of periodic transmission, the second SFI is the SFI of the previous period of the first SFI, the N flexible symbols are flexible symbols positioned in the effective time of the second SFI in the first time domain resource, and N is a positive integer.

Optionally, the first SFI is one of the periodic SFI transmissions.

Optionally, the effective time of the first SFI is determined according to a first offset and/or the capability of the terminal device, where the first offset is an offset of the effective time of the dynamic SFI.

Optionally, the first transmission is one of:

PUSCH, PUCCH, PDSCH, and PDCCH.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 3, and are not described herein again for brevity.

Fig. 8 is a schematic structural diagram of a communication device 400 according to an embodiment of the present application. The communication device 400 shown in fig. 8 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 400 may also include a memory 420. From the memory 420, the processor 410 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 420 may be a separate device from the processor 410, or may be integrated into the processor 410.

Optionally, as shown in fig. 8, the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 430 may include a transmitter and a receiver, among others. The transceiver 430 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 400 may specifically be a network device or a base station in the embodiment of the present application, and the communication device 400 may implement a corresponding procedure implemented by the network device or the base station in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the communication device 400 may specifically be a mobile terminal/terminal device in the embodiment of the present application, and the communication device 400 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 9 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 500 shown in fig. 9 includes a processor 510, and the processor 510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the apparatus 500 may further include a memory 520. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into the processor 510.

Optionally, the apparatus 500 may further comprise an input interface 530. The processor 510 may control the input interface 530 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 500 may further comprise an output interface 540. The processor 510 may control the output interface 540 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

Optionally, the apparatus may be applied to a network device or a base station in the embodiment of the present application, and the apparatus may implement a corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the apparatus may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 10 is a schematic block diagram of a communication system 600 provided in an embodiment of the present application. As shown in fig. 10, the communication system 600 includes a terminal device 610 and a network device 620.

The terminal device 610 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 620 may be configured to implement the corresponding function implemented by the network device or the base station in the foregoing method, which is not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding 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 a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device or the base station in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device or the base station in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device or the base station in the methods in the embodiments of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device or the base station in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device or the base station in the methods in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the terminal equipment monitors a first time Slot Format Indication (SFI) at a first time domain position;

and the terminal equipment determines the transmission direction of the flexible symbols in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in multiple repeated transmissions, wherein part or all of the multiple repeated transmissions are positioned on the flexible symbols in the first time domain resource.
The method of claim 1, wherein the determining, by the terminal device, the flexible symbol transmission direction in the first time domain resource according to the listening result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions comprises:

and when the terminal equipment correctly receives the first SFI and the effective time of the first SFI is before the starting time of the first transmission, the terminal equipment determines the transmission direction of at least one flexible symbol corresponding to the repeated transmission according to the indication of the first SFI, wherein the at least one flexible symbol is a flexible symbol in the effective time of the first SFI in the first time domain resource.
The method of claim 1, wherein the determining, by the terminal device, the flexible symbol transmission direction in the first time domain resource according to the listening result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions comprises:

and when the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is before the starting time of the first transmission, the terminal equipment determines that the flexible symbols corresponding to the repeated transmission are flexible symbols.
The method of claim 1, wherein the determining, by the terminal device, the flexible symbol transmission direction in the first time domain resource according to the listening result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions comprises:

in the case that the terminal device correctly receives the first SFI, and the effective time of the first SFI is after the starting time of the first transmission,

and the terminal equipment determines the transmission directions of M flexible symbols corresponding to the transmission after the first transmission in the multiple repeated transmissions according to the indication of the first SFI, wherein the M flexible symbols are flexible symbols positioned in the effective time of the first SFI in the first time domain resource, and M is a positive integer.
The method of claim 1, wherein the determining, by the terminal device, the flexible symbol transmission direction in the first time domain resource according to the listening result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions comprises:

and when the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is after the starting time of the first transmission, the terminal equipment determines that the flexible symbol corresponding to the transmission after the first transmission in the repeated transmission is the flexible symbol.
The method according to claim 4 or 5, characterized in that the method further comprises:

the terminal equipment monitors a second SFI on a second time domain position, wherein the SFI is information transmitted periodically, and the second SFI is the SFI of the previous period of the first SFI;

and the terminal equipment determines the transmission directions of N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmission according to the monitoring result of the second SFI, wherein the N flexible symbols are flexible symbols positioned in the effective time of the second SFI in the first time domain resource, and N is a positive integer.
The method of claim 6, wherein the determining, by the terminal device according to the listening result of the second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions comprises:

under the condition that the terminal equipment correctly receives the second SFI, the terminal equipment determines the transmission directions of the N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions according to the indication of the second SFI; or,

and under the condition that the terminal equipment does not correctly receive the second SFI, the terminal equipment determines that flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions are flexible symbols.
The method of claim 1, wherein the determining, by the terminal device, the flexible symbol transmission direction in the first time domain resource according to the listening result of the first SFI and the position relationship between the effective time of the first SFI and the start time of the first transmission in the multiple repeated transmissions comprises:

when the terminal device does not correctly receive the first SFI, and the effective time of the first SFI is after the starting time of the first transmission, the terminal device determines, according to an indication of a second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions, wherein the SFI is information of periodic transmission, the second SFI is an SFI of a previous period of the first SFI, the N flexible symbols are flexible symbols in the first time domain resource within the effective time of the second SFI, and N is a positive integer.
The method of any of claims 1-8, wherein the first SFI is one SFI in a periodic SFI transmission.
The method according to any one of claims 1 to 9,

the effective time of the first SFI is determined according to a first offset and/or the capability of the terminal equipment, wherein the first offset is the offset of the effective time of the dynamic SFI.
The method of claim 10, wherein the first offset is configured by a network device or wherein the first offset is pre-configured.
The method according to any of claims 1 to 11, wherein the first time domain location is configured by a network device or is pre-configured.
The method according to any of claims 1 to 12, wherein the first time domain resource is a semi-statically configured time domain resource.
The method according to any one of claims 1 to 13, wherein the first transmission is one of:

a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH and a physical downlink control channel PDCCH.
A terminal device, comprising:

a communication unit for listening for a first slot format indication, SFI, at a first time domain location;

and the processing unit is used for determining the transmission direction of the flexible symbols in the first time domain resource according to the monitoring result of the first SFI and the position relation between the effective time of the first SFI and the initial time of the first transmission in the repeated transmission, wherein part or all of the repeated transmission is positioned on the flexible symbols in the first time domain resource.
The terminal device of claim 15, wherein the processing unit is specifically configured to:

and when the terminal equipment correctly receives the first SFI and the effective time of the first SFI is before the initial time of the first transmission, determining the transmission direction of at least one flexible symbol corresponding to the repeated transmission according to the indication of the first SFI, wherein the at least one flexible symbol is a flexible symbol in the effective time of the first SFI in the first time domain resource.
The terminal device of claim 15, wherein the processing unit is specifically configured to:

and under the condition that the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is before the starting time of the first transmission, determining that the flexible symbols corresponding to the repeated transmission are flexible symbols.
The terminal device of claim 15, wherein the processing unit is specifically configured to:

in the case that the terminal device correctly receives the first SFI, and the effective time of the first SFI is after the starting time of the first transmission,

determining, according to the indication of the first SFI, a transmission direction of M flexible symbols corresponding to transmission after the first transmission in the multiple repeated transmissions, where the M flexible symbols are flexible symbols located within an effective time of the first SFI in the first time domain resource, and M is a positive integer.
The terminal device of claim 15, wherein the processing unit is specifically configured to:

and determining that a flexible symbol corresponding to transmission after the first transmission in the multiple repeated transmissions is a flexible symbol when the terminal device does not correctly receive the first SFI and the effective time of the first SFI is after the starting time of the first transmission.
The terminal device according to claim 18 or 19,

the communication unit is further configured to monitor a second SFI at a second time domain location, where the SFI is periodically transmitted information, and the second SFI is an SFI of a previous period of the first SFI;

the processing unit is further configured to determine, according to a monitoring result of the second SFI, transmission directions of N flexible symbols corresponding to the first transmission and a transmission before the first transmission in the multiple repeated transmissions, where the N flexible symbols are flexible symbols located within an effective time of the second SFI in the first time domain resource, and N is a positive integer.
The terminal device of claim 20, wherein the processing unit is specifically configured to:

under the condition that the terminal equipment correctly receives the second SFI, determining the transmission directions of the N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions according to the indication of the second SFI; or,

and under the condition that the terminal equipment does not correctly receive the second SFI, determining that flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmissions are flexible symbols.
The terminal device of claim 15, wherein the processing unit is specifically configured to:

and when the terminal equipment does not correctly receive the first SFI and the effective time of the first SFI is after the starting time of the first transmission, determining the transmission directions of N flexible symbols corresponding to the first transmission and the transmission before the first transmission in the repeated transmission according to the indication of a second SFI, wherein the SFI is information of periodic transmission, the second SFI is the SFI of the previous period of the first SFI, the N flexible symbols are flexible symbols positioned in the effective time of the second SFI in the first time domain resource, and N is a positive integer.
The terminal device of any of claims 15-22, wherein the first SFI is one of a periodic SFI transmission.
The terminal device according to any of claims 15 to 23,

the effective time of the first SFI is determined according to a first offset and/or the capability of the terminal equipment, wherein the first offset is the offset of the effective time of the dynamic SFI.
The terminal device of claim 24, wherein the first offset is configured by a network device or is pre-configured.
A terminal device according to any of claims 15 to 25, wherein the first time domain location is configured by a network device or is pre-configured.
The terminal device according to any of claims 15 to 26, wherein the first time domain resource is a semi-statically configured time domain resource.
The terminal device of any of claims 15 to 27, wherein the first transmission is one of:

a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH and a physical downlink control channel PDCCH.
A terminal device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any one of claims 1 to 14.
An apparatus, comprising: a processor for calling and running a computer program from a memory to cause a device in which the apparatus is installed to perform the method of any one of claims 1 to 14.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 14.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 14.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 14.