Repeated transmission method and device, communication equipment and computer readable storage medium

Abstract

The invention discloses a repeated transmission method and device, communication equipment and a computer readable storage medium, and the method comprises the steps that terminal equipment receives first information sent by network equipment, the first information is used for configuring or indicating at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel; wherein the frequency domain resource is a BWP or a carrier wave or a service cell.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method and apparatus for repeated transmission, a communication device, and a computer-readable storage medium. Background Art

[0002] Repeated transmission of physical channels can increase the transmission reliability of physical channels. Due to the limitations of the uplink and downlink frame structure and switching cycle of Time Division Duplexing (TDD), repeated transmission of physical channels has a large transmission delay and low utilization of wireless resources. Summary of the invention

[0003] Embodiments of the present application provide a method and apparatus for repeated transmission, a communication device, a chip, and a computer-readable storage medium.

[0004] The method for repeated transmission provided in an embodiment of the present application includes:

[0005] The terminal device receives first information sent by the network device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are a bandwidth part (Band Width Part, BWP) or a carrier or a service cell.

[0006] The method for repeated transmission provided in an embodiment of the present application includes:

[0007] The network device sends first information to the terminal device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

[0008] The apparatus for repeated transmission provided in an embodiment of the present application is applied to a terminal device, and the apparatus includes:

[0009] A receiving unit is used to receive first information sent by a network device, wherein the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

[0010] The apparatus for repeated transmission provided in an embodiment of the present application is applied to a network device, and the apparatus includes:

[0011] A sending unit is used to send first information to a terminal device, wherein the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

[0012] The communication device provided in the embodiment of the present application includes: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute any one of the above-mentioned repeated transmission methods.

[0013] The chip provided in the embodiment of the present application includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes any one of the above methods.

[0014] The computer-readable storage medium provided in the embodiments of the present application is used to store a computer program, and the computer program enables a computer to execute any one of the above methods.

[0015] In the technical solution of the embodiment of the present application, the network device configures at least two frequency domain resources for repeated transmission of a physical channel for the terminal device, and the frequency domain resource can be a BWP or a carrier or a service cell. In this way, the terminal device can perform repeated transmission of a physical channel on at least two frequency domain resources based on the configuration of the network device, thereby realizing repeated transmission across frequency domain resources. Since the repeated transmission of the physical channel can be performed across frequency domain resources, the repeated transmission of the physical channel does not have to be constrained to the TDD uplink and downlink frame structure and conversion cycle of the same frequency domain resource, thereby reducing the delay of repeated transmission. In addition, since the wireless resources of at least two frequency domain resources can be used, the utilization rate of wireless resources is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of actual repeated transmission;

[0018] Figure 3 It is a schematic diagram of complementary TDD;

[0019] Figure 4 is a schematic diagram of SBFD with carrier aggregation;

[0020] Figure 5 This is a schematic diagram of the process of the repeated transmission method provided in the embodiment of the present application. Figure 1 ;

[0021] Figure 6 This is a schematic diagram of the process of the repeated transmission method provided in the embodiment of the present application. Figure 2 ;

[0022] Figure 7 The structure of the repeated transmission device provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0023] Figure 8 The structure of the repeated transmission device provided in the embodiment of the present application is shown in FIG. Figure 2 ;

[0024] Fig. 9 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0025] Fig.10 It is a schematic structural diagram of the chip of an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application.

[0028] like Figure 1 As shown, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 via an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0029] It should be understood that the embodiments of the present application are only exemplified by the communication system 100, but the embodiments of the present application are not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: 5G communication system (also known as New Radio (NR) communication system), or future communication systems, etc.

[0030] exist Figure 1 In the communication system 100 shown, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area, and may communicate with the terminal device 110 (eg, UE) located in the coverage area.

[0031] The network device 120 may be a base station (gNB) in an NR system, or a network device in a future evolved public land mobile network (PLMN), etc.

[0032] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0033] For example, the terminal device 110 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), 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, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0034] Figure 1 One base station and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0035] It should be noted that Figure 1It is only to illustrate the system to which the present application is applicable in the form of an example. Of course, the method shown in the embodiment of the present application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiment of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that there is an association relationship between A and B. It should also be understood that the "correspondence" mentioned in the embodiment of the present application can mean that there is a direct or indirect correspondence relationship between the two, or it can mean that there is an association relationship between the two, or it can mean that there is an indication and being indicated, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit its specific implementation method. For example, predefined may refer to the definition in the protocol. It should also be understood that in the embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, such as the NR protocol and related protocols used in future communication systems, which is not limited in the present application.

[0036] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

[0037] Repeated transmission of physical channels can increase the transmission reliability of physical channels. The physical channels can be physical downlink shared channels (PDSCH), physical uplink shared channels (PUSCH), physical downlink control channels (PDCCH), and physical uplink control channels (PUCCH).

[0038] For PDSCH, there are two ways: semi-statically configuring the number of repetitions of PDSCH (ie, the number of repeated transmissions) and dynamically indicating the number of repetitions of PDSCH.

[0039] The number of repetitions of semi-statically configured PDSCH means that the network device configures the PDSCH aggregation factor (pdsch-AggregationFactor) for the terminal device through the Radio Resource Control (RRC) signaling, and the pdsch-AggregationFactor is the number of repetitions of PDSCH. For dynamically scheduled PDSCH or semi-persistent scheduling (SemiPersistent Scheduling, SPS) PDSCH, the terminal device receives the repeatedly transmitted PDSCH in pdsch-AggregationFactor consecutive time slots.

[0040] Dynamically indicating the number of repetitions of PDSCH means that the network device indicates the number of repetitions (repetitionNumber) of PDSCH to the terminal device through downlink control information (Downlink ControlInformation, DCI). Specifically, the network device can indicate the repetitionNumber in the time domain resource configuration table of PDSCH carried by DCI. That is to say, when the network device indicates the time domain resource allocation of PDSCH through DCI (i.e., the scheduling signaling of PDSCH), it also indicates the number of repetitions of PDSCH. For dynamically scheduled PDSCH, the terminal device receives the repeatedly transmitted PDSCH in consecutive repetitionNumber time slots.

[0041] For PUSCH, there are two modes: PUSCH repetition type A (PUSCH repetition typeA) and PUSCH repetition type B (PUSCH repetition typeB).

[0042] PUSCH repetition typeA is a repeated transmission based on time slots. Specifically, the terminal device sends the same PUSCH (which can be understood as the same data, or the same transport block (TransportBlock, TB)) on K (K>1) time slots, and the symbol positions occupied by the same PUSCH in K time slots are exactly the same. Sending the same PUSCH on K time slots can also be understood as K repeated transmissions of the same PUSCH on K time slots. There are also two ways to indicate the number of PUSCH repetitions, one is to semi-statically configure the number of PUSCH repetitions, and the other is to dynamically indicate the number of PUSCH repetitions. Among them, the semi-static configuration of the PUSCH repetition number means: the network device configures the PUSCH aggregation factor (pusch-AggregationFactor) for the terminal device through RRC signaling, and the pusch-AggregationFactor is the number of PUSCH repetitions. Dynamic indication of the number of PUSCH repetitions means: the network device indicates the number of PUSCH repetitions (numberOfRepetitions) to the terminal device through DCI. The repeated transmission of the PUSCH may be performed on multiple consecutive time slots or on multiple available uplink time slots.

[0043] PUSCH repetition type B is a repetitive transmission based on mini-slots. Specifically, the terminal device sends the same PUSCH (which can be understood as the same data, or the same TB) on multiple mini-slots. A slot can contain multiple mini-slots. Therefore, PUSCH can be retransmitted multiple times in one slot, but a transmission based on PUSCH Repetition Type B may cross slots. In order to deal with the situation where the transmission crosses slots or encounters unavailable symbols during the transmission process, PUSCH Repetition Type B introduces the concept of actual repetition. Specifically, in PUSCH repetition type B, a repetition is called a nominal repetition. When a nominal repetition encounters the above situation, it will be divided into multiple actual repetitions, such as Figure 2 As shown in the figure, the S time slot and the U time slot are shown, the S time slot represents a special time slot, the S time slot is composed of a downlink (DL) symbol, a guard period (GP) symbol and an uplink (UL) symbol, and the U time slot is composed entirely of UL symbols; nominal repetition #1 ( Figure 2 Nominal#1) represents the first nominal repetition, and nominal repetition#2 ( Figure 2 Nominal#2) represents the second nominal repetition, and Nominal#3 ( Figure 2 Nominal#3) represents the third nominal repetition, and Nominal#4 ( Figure 2 Nominal#4 for short) represents the fourth nominal repetition; wherein, nominal repetition#1 spans time slot S and time slot U, and nominalrepetition#1 is divided into actualrepetition#1( Figure 2 Actual#1) and actual repetition#2 ( Figure 2 During the transmission of nominal repetition #2, unavailable symbols (i.e., symbols #4 and #5) are encountered, and nominal repetition #2 is mapped to actual repetition #3 ( Figure 2 Referred to as Actual#3). Nominal repetition#3 corresponds to actual repetition#4 ( Figure 2 Referred to as Actual#4). Nominal repetition#4 corresponds to actual repetition#5 ( Figure 2 Referred to as Actual #5).

[0044] At present, the repeated transmission of physical channels supported by NR (such as PDSCH, PUSCH) is carried out in one frequency domain resource, where the frequency domain resource can be a carrier or a service cell or a bandwidth part (Band Width Part, BWP). In the scenario of complementary time division duplexing (TDD) or subband full duplex (SBFD) based on carrier aggregation or SBFD based on multiple BWPs, if the repeated transmission is still restricted to only one frequency domain resource, there will be a large transmission delay. At the same time, due to the limitation of repeated transmission in the frequency domain resource, the resource utilization efficiency of the overall system is poor. Figure 3 As shown, Figure 3The diagram shows the complementary TDD scenario. CC represents carrier. The TDD frame structure on CC#1 is USDDD, and the TDD frame structure on CC#2 is DSUUU. U represents uplink time slot, S represents flexible time slot, and D represents downlink time slot. It can be seen that the time domain structures on CC#1 and CC#2 are complementary. If repeated transmission is restricted to only one CC, there will be a large transmission delay, and the wireless resources of the two carriers cannot be fully utilized. Figure 4 As shown, Figure 4 The scenario of SBFD with carrier aggregation is illustrated. CC represents carrier. CC#1, CC#2 and CC#3 are aggregated to form an aggregated carrier. The TDD frame structure of the first and third aggregated carriers is DDDSU, and the TDD frame structure of the second aggregated carrier is DSUUU, where U represents uplink time slot, S represents flexible time slot, and D represents downlink time slot. If repeated transmission is restricted to only one CC, there will be a large transmission delay, and the wireless resources of multiple carriers cannot be fully utilized. SBFD based on multiple BWPs is similar to SBFD based on carrier aggregation.

[0045] Therefore, it is necessary to realize repeated transmission of cross-frequency domain resources. To this end, the following technical solutions of the embodiments of the present application are proposed. The technical solutions of the embodiments of the present application use at least two frequency domain resources to perform repeated transmission of physical channels, which can not only reduce the overall delay of repeated transmission, but also make more effective use of wireless resources.

[0046] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0047] It should be noted that the physical channels in the embodiments of the present application include but are not limited to PDSCH, PUSCH, etc.

[0048] It should be noted that the repeated transmission in the embodiment of the present application may be repeated reception or repeated sending.

[0049] It should be noted that the frequency domain resources in the embodiments of the present application may be a BWP or a carrier or a service cell. At the media access control (MAC) layer of the terminal device, a hybrid automatic repeat request (HARQ) entity is maintained for each cell, and the HARQ entity is responsible for repeated transmission of the physical channel. For a scheme of repeated transmission on at least two frequency domain resources (that is, repeated transmission across frequency domain resources), the HARQ entity responsible for repeated transmission is the HARQ entity corresponding to the service cell where the terminal device first transmits or receives the physical channel.

[0050] Figure 5 This is a schematic diagram of the process of the repeated transmission method provided in the embodiment of the present application. Figure 1 ,like Figure 5 As shown, the repeated transmission method comprises the following steps:

[0051] Step 501: A terminal device receives first information sent by a network device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel.

[0052] In some embodiments, the first information is used to configure or indicate at least two frequency domain resources, which can be implemented in the following manner: the first information is used to configure or indicate the identifiers or indices of at least two frequency domain resources where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two BWPs where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two carriers where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two service cells where the physical channel is repeatedly transmitted.

[0053] In some embodiments, the first information may be carried in RRC signaling, that is, the network device configures at least two frequency domain resources for repeated transmission of a physical channel for the terminal device through RRC signaling. In other embodiments, the first information may be carried in DCI, that is, the network device indicates to the terminal device through DCI the at least two frequency domain resources for repeated transmission of a physical channel. In other embodiments, the first information may be carried in MAC CE, that is, the network device indicates to the terminal device through MAC CE the at least two frequency domain resources for repeated transmission of a physical channel.

[0054] In some implementations, the terminal device receives second information sent by the network device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

[0055] In some embodiments, the second information may be carried in RRC signaling, that is, the network device configures the number of repetitions of the physical channel for the terminal device through RRC signaling. In other embodiments, the second information may be carried in DCI, that is, the network device indicates the number of repetitions of the physical channel to the terminal device through DCI. In other embodiments, the second information may be carried in MAC CE, that is, the network device indicates the number of repetitions of the physical channel to the terminal device through MAC CE. Here, the configuration method or indication method of the number of repetitions of the physical channel may refer to the aforementioned related technical solutions.

[0056] In the embodiment of the present application, the terminal device may determine the order of repeated transmission of the physical channel on the at least two frequency domain resources according to the configuration of the network device side or a predefined method.

[0057] Solution 1: The terminal device determines the order of repeated transmission of the physical channel on the above-mentioned at least two frequency domain resources according to the configuration on the network device side.

[0058] In some implementations, the terminal device receives third information sent by the network device, where the third information is used to configure or indicate a first order of at least two frequency domain resources.

[0059] In some embodiments, the third information may be carried in RRC signaling, that is, the network device configures the first order of repeated transmission of the physical channel on at least two frequency domain resources for the terminal device through RRC signaling. In other embodiments, the third information may be carried in DCI, that is, the network device indicates to the terminal device through DCI the first order of repeated transmission of the physical channel on at least two frequency domain resources. In other embodiments, the third information may be carried in MACCE, that is, the network device indicates to the terminal device through MAC CE the first order of repeated transmission of the physical channel on at least two frequency domain resources.

[0060] After receiving the scheduling signaling of the physical channel, the terminal device determines the frequency domain resources where each subsequent transmission of the physical channel is located according to the frequency domain resources where the first transmission of the physical channel indicated by the scheduling signaling is located, the above-mentioned first order, and the number of repetitions of the physical channel. Specifically, the terminal device determines the frequency domain resource index where each subsequent transmission is located according to the index of the frequency domain resource where the first transmission is located, cyclically according to the above-mentioned first order, until the number of repetitions configured or indicated by the network device is met.

[0061] Scheme 1-1) The terminal device determines that a transmission of a physical channel is located at a first frequency domain resource among at least two frequency domain resources; the terminal device determines that a next transmission of the physical channel is located at a second frequency domain resource among at least two frequency domain resources, and the second frequency domain resource is the next frequency domain resource of the first frequency domain resource determined according to the first order.

[0062] Here, "one transmission of a physical channel" may be "the first transmission of a physical channel (ie, the first transmission)" or "a non-first transmission of a physical channel".

[0063] The terminal device receives a scheduling signaling (such as DCI) of a physical channel, and the scheduling signaling is used to indicate the frequency domain resources where the first transmission of the physical channel is located. The terminal device can determine the frequency domain resources where the first transmission of the physical channel is located based on the scheduling signaling. Further, the terminal device can determine the next frequency domain resource of the frequency domain resource where the first transmission is located based on the first order, and the next frequency domain resource is the frequency domain resource where the next transmission of the physical channel is located, and so on, so that the frequency domain resource where each subsequent transmission of the physical channel is located can be determined until the number of repetitions configured or indicated by the network device is met.

[0064] Exemplarily, the network device configures three frequency domain resources for the terminal device for repeated transmission of physical channels. The three frequency domain resources are frequency domain resource #1, frequency domain resource #2 and frequency domain resource #3. The three frequency domain resources may be, for example, BWP #1, BWP #2 and BWP #3, or may be CC #1, CC #2 and CC #3, or may be service cell #1, service cell #2 and service cell #3. The first order in which the network device configures repeated transmission of physical channels for the terminal device on the above three frequency domain resources is: frequency domain resource #1, frequency domain resource #3, frequency domain resource #2 in a cyclic order. The terminal device receives scheduling signaling, which may be uplink scheduling signaling (i.e., the physical channel scheduled by the scheduling signaling is an uplink physical channel, such as PUSCH), or the scheduling signaling may be downlink scheduling signaling (i.e., the physical channel scheduled by the scheduling signaling is a downlink physical channel, such as PDSCH). Case 1) If the frequency domain resource where the first transmission of the physical channel scheduled by the scheduling signaling is located is frequency domain resource #3, the terminal device determines the order of the frequency domain resources where each transmission of the physical channel (including the first transmission) is located according to the first order and the number of repetitions configured or indicated by the network device: frequency domain resource #3, frequency domain resource #2, frequency domain resource #1, frequency domain resource #3, frequency domain resource #2, frequency domain resource #1…, until the number of repetitions configured or indicated by the network device is met. Case 2) If the frequency domain resource where the first transmission of the physical channel scheduled by the scheduling signaling is located is frequency domain resource #2, the terminal device determines the order of the frequency domain resources where each transmission of the physical channel (including the first transmission) is located according to the first order and the number of repetitions configured or indicated by the network device: frequency domain resource #2, frequency domain resource #1, frequency domain resource #3, frequency domain resource #3, frequency domain resource #1, frequency domain resource #3…, until the number of repetitions configured or indicated by the network device is met.

[0065] Scheme 1-2) The terminal device determines that at least one transmission of the physical channel is located in a first frequency domain resource among at least two frequency domain resources; if the number of transmissions located in the first frequency domain resource reaches the first number of transmissions, or the transmission time located in the first frequency domain resource reaches the first transmission time, or there is no available transmission opportunity for the first frequency domain resource in the remaining time within the first time window, then the terminal device determines that at least one subsequent transmission of the physical channel is located in a second frequency domain resource among at least two frequency domain resources, and the second frequency domain resource is the next frequency domain resource of the first frequency domain resource determined according to the first order.

[0066] In some implementations, the first transmission number and / or the first transmission time are configured by the network device.

[0067] Here, the network device can configure the first transmission number and / or first transmission time on each frequency domain resource in the above-mentioned at least two frequency domains for the terminal device. Among them, the first transmission number of different frequency domain resources is the same or different; the first transmission time of different frequency domain resources is the same or different. The first transmission number can also be referred to as the maximum transmission number, which is not limited in this application. The first transmission time can also be referred to as the maximum transmission time, which is not limited in this application.

[0068] The terminal device repeatedly transmits a physical channel on one frequency domain resource (such as the first frequency domain resource) among the at least two frequency domain resources mentioned above. If the number of transmissions on the frequency domain resource reaches the first number of transmissions on the frequency domain resource or the transmission time on the frequency domain resource reaches the first transmission time on the frequency domain resource, the terminal device switches from the frequency domain resource to the next frequency domain resource to repeatedly transmit the physical channel, wherein the next frequency domain resource of the frequency domain resource is determined according to the first order.

[0069] In some implementations, the first time window is configured by the network device or predefined by the protocol. Wherein, the first time windows of different frequency domain resources are the same or different. Exemplarily, the first time window is a TDD period.

[0070] The terminal device repeatedly transmits a physical channel on one frequency domain resource (such as the first frequency domain resource) among the at least two frequency domain resources mentioned above, and if there is no available transmission opportunity in the remaining time within the first time window on the frequency domain resource, the terminal device switches from the frequency domain resource to the next frequency domain resource to repeatedly transmit the physical channel, wherein the next frequency domain resource of the frequency domain resource is determined according to the first order.

[0071] Exemplarily, the network device configures three frequency domain resources for the terminal device for repeated transmission of physical channels. The three frequency domain resources are frequency domain resource #1, frequency domain resource #2 and frequency domain resource #3. The three frequency domain resources may be, for example, BWP #1, BWP #2 and BWP #3, or CC #1, CC #2 and CC #3, or service cell #1, service cell #2 and service cell #3. The network device configures the repeated transmission of the physical channel for the terminal device in the first order on the above three frequency domain resources as follows: frequency domain resource #1, frequency domain resource #3, frequency domain resource #2 in a cyclic order. Among them, the first number of transmissions on frequency domain resource #1 (such as the maximum number of transmissions) is 4, the first number of transmissions on frequency domain resource #2 (such as the maximum number of transmissions) is 4, the first number of transmissions on frequency domain resource #3 (such as the maximum number of transmissions) is 2, and the first time window is a TDD period. The terminal device receives scheduling signaling, and the physical channel scheduled by the scheduling signaling is PDSCH. If the frequency domain resource where the first transmission of PDSCH scheduled by the scheduling signaling is located is frequency domain resource #1, the TDD frame structure of frequency domain resource #1 is DDDDDDSUU, D represents the downlink time slot, S represents the flexible time slot, and U represents the uplink time slot. Case 1) If the first transmission of PDSCH is located on the first D of the frame structure, then after the terminal device repeats the transmission of the physical channel on frequency domain resource #1 for 4 times, it reaches the first number of transmissions on frequency domain resource #1, and thus switches to the next frequency domain resource (i.e., frequency domain resource #3) to continue the repeated transmission of the physical channel. The next frequency domain resource of frequency domain resource #1 is determined according to the above-mentioned first order. Case 2) If the first transmission of PDSCH is located on the 4th D of the frame structure, the terminal device repeats the transmission of the physical channel on frequency domain resource #1 for 3 times. Since there is no available transmission opportunity in the remaining time of the TDD period of frequency domain resource #1, the terminal device switches to the next frequency domain resource (i.e., frequency domain resource #3) to continue the repeated transmission of the physical channel. The next frequency domain resource of frequency domain resource #1 is determined according to the first order mentioned above.

[0072] Solution 2: The terminal device determines the order of repeated transmission of the physical channel on the above-mentioned at least two frequency domain resources according to a predefined method.

[0073] In some implementations, the terminal device determines that one transmission of a physical channel is located in a first available transmission opportunity of a first frequency domain resource; the terminal device determines that the next transmission of the physical channel is located in a second frequency domain resource, and the second frequency domain resource is a frequency domain resource where the next available transmission opportunity closest to the first available transmission opportunity among at least two frequency domain resources is located. Here, the second frequency domain resource and the first frequency domain resource may be the same frequency domain resource, or may be different frequency domain resources.

[0074] Here, after the terminal device performs a physical channel transmission on a frequency domain resource (such as the first frequency domain resource), it preferentially selects the frequency domain resource with the available transmission opportunity closest to the available transmission opportunity of the previous transmission from at least two frequency domain resources for the next transmission of the physical channel.

[0075] In some embodiments, if there are N frequency domain resources where the next available transmission opportunity closest to the first available transmission opportunity is located, and N is an integer greater than 1, the terminal device determines a frequency domain resource from the N frequency domain resources as the second frequency domain resource.

[0076] Here, the selection method of the second frequency domain resource may be predefined. In some implementations, the second frequency domain resource is the frequency domain resource with the largest index among the N frequency domain resources; or, the second frequency domain resource is the frequency domain resource with the smallest index among the N frequency domain resources; or, the second frequency domain resource is any one of the N frequency domain resources.

[0077] Exemplarily, the network device configures three frequency domain resources for the terminal device for repeated transmission of the physical channel, and the three frequency domain resources are frequency domain resource #1, frequency domain resource #2 and frequency domain resource #3, respectively. The three frequency domain resources may be, for example, BWP #1, BWP #2 and BWP #3, or CC #1, CC #2 and CC #3, or service cell #1, service cell #2 and service cell #3. Referring to the following Table 1, Table 1 shows the TDD frame structures corresponding to frequency domain resource #1, frequency domain resource #2 and frequency domain resource #3, respectively. The TDD frame structure is characterized by the direction of 7 time slots, where D represents a downlink time slot and U represents an uplink time slot.

[0078] Time slot 1 2 3 4 5 6 7 Frequency Domain Resource #1 U U D D U U U Frequency Domain Resource #2 D D U U U U D Frequency Domain Resource #3 U U U D D U U

[0079] Table 1

[0080] The terminal device receives a scheduling signaling, and the physical channel scheduled by the scheduling signaling is PDSCH. If the frequency domain resource where the first transmission of PDSCH scheduled by the scheduling signaling is located is time slot #1 of frequency domain resource #1, the terminal device receives the first transmission of PDSCH on time slot #1 of frequency domain resource #1; for the next transmission of PDSCH, there is an available time slot (the D time slot represented by time slot #2 of frequency domain resource #2 is an available time slot) closest to the time slot where the previous transmission of PDSCH is located (that is, time slot #1) on frequency domain resource #2 among the three frequency domain resources, therefore, the terminal device receives PDSCH on time slot #2 of frequency domain resource #2. The second transmission of PDSCH; for the next transmission of PDSCH, among the three frequency domain resources, frequency domain resource #3 has an available time slot closest to the time slot (that is, time slot #2) where the previous transmission of PDSCH is located (the D time slot represented by time slot #1 of frequency domain resource #3 is an available time slot), so the terminal device receives the third transmission of PDSCH at time slot #1 of frequency domain resource #3; for the next transmission of PDSCH, among the three frequency domain resources, frequency domain resource #1 and frequency domain resource #3 have a time slot closest to the time slot where the previous transmission of PDSCH is located. (also known as time slot #3) the nearest available time slot (the D time slot represented by time slot #4 of frequency domain resource #1 and time slot #4 of frequency domain resource #3 is an available time slot), therefore, the terminal device selects the frequency domain resource #1 with the smallest frequency domain resource index from frequency domain resource #1 and frequency domain resource #3 according to a predefined method, and receives the fourth transmission of PDSCH on time slot #4 of frequency domain resource #1; for the next transmission of PDSCH, the frequency domain resource #3 among the three frequency domain resources has the closest time slot to the time slot (also known as time slot #4) where the previous transmission of PDSCH was located. An available time slot (the D time slot represented by time slot #5 of frequency domain resource #3 is an available time slot), therefore, the terminal device receives the fifth transmission of PDSCH at time slot #5 of frequency domain resource #3; for the next transmission of PDSCH, among the three frequency domain resources, frequency domain resource #2 has an available time slot closest to the time slot where the previous transmission of PDSCH was located (that is, time slot #5) (the D time slot represented by time slot #7 of frequency domain resource #2 is an available time slot), therefore, the terminal device receives the sixth transmission of PDSCH at time slot #7 of frequency domain resource #2.

[0081] According to the technical solution of the embodiment of the present application, the network device configures at least two frequency domain resources for repeated transmission of a physical channel for the terminal device, and the frequency domain resources can be a BWP or a carrier or a service cell. In this way, the terminal device can perform repeated transmission of a physical channel on at least two frequency domain resources based on the configuration of the network device, thereby realizing repeated transmission across frequency domain resources and reducing the delay of repeated transmission. In addition, since the wireless resources of at least two frequency domain resources can be utilized, the utilization rate of wireless resources is improved.

[0082] Figure 6 This is a schematic diagram of the process of the repeated transmission method provided in the embodiment of the present application. Figure 2 ,like Figure 6 As shown, the repeated transmission method comprises the following steps:

[0083] Step 601: A network device sends first information to a terminal device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel.

[0084] In some embodiments, the first information is used to configure or indicate at least two frequency domain resources, which can be implemented in the following manner: the first information is used to configure or indicate the identifiers or indices of at least two frequency domain resources where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two BWPs where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two carriers where the physical channel is repeatedly transmitted. For example: the first information is used to configure or indicate the identifiers or indices of at least two service cells where the physical channel is repeatedly transmitted.

[0085] In some embodiments, the first information may be carried in RRC signaling, that is, the network device configures at least two frequency domain resources for repeated transmission of a physical channel for the terminal device through RRC signaling. In other embodiments, the first information may be carried in DCI, that is, the network device indicates to the terminal device through DCI the at least two frequency domain resources for repeated transmission of a physical channel. In other embodiments, the first information may be carried in MAC CE, that is, the network device indicates to the terminal device through MAC CE the at least two frequency domain resources for repeated transmission of a physical channel.

[0086] In some implementations, the network device sends second information to the terminal device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

[0087] In some embodiments, the second information may be carried in RRC signaling, that is, the network device configures the number of repetitions of the physical channel for the terminal device through RRC signaling. In other embodiments, the second information may be carried in DCI, that is, the network device indicates the number of repetitions of the physical channel to the terminal device through DCI. In other embodiments, the second information may be carried in MAC CE, that is, the network device indicates the number of repetitions of the physical channel to the terminal device through MAC CE. Here, the configuration method or indication method of the number of repetitions of the physical channel may refer to the aforementioned related technical solutions.

[0088] In the embodiment of the present application, the terminal device can determine the order of repeated transmission of the physical channel on the at least two frequency domain resources according to the configuration of the network device side or a predefined method. The specific implementation method can refer to the aforementioned Figure 5 Description of the related options 1 and 2.

[0089] In some embodiments, corresponding to the aforementioned Figure 5 Related solution 1: The network device sends third information to the terminal device, and the third information is used to configure or indicate a first order of at least two frequency domain resources.

[0090] In some embodiments, the third information may be carried in RRC signaling, that is, the network device configures the first order of repeated transmission of the physical channel on at least two frequency domain resources for the terminal device through RRC signaling. In other embodiments, the third information may be carried in DCI, that is, the network device indicates to the terminal device through DCI the first order of repeated transmission of the physical channel on at least two frequency domain resources. In other embodiments, the third information may be carried in MACCE, that is, the network device indicates to the terminal device through MAC CE the first order of repeated transmission of the physical channel on at least two frequency domain resources.

[0091] In some embodiments, corresponding to the aforementioned Figure 5 In scheme 1-2 of the related scheme 1), the network device sends fourth information to the terminal device, and the fourth information is used to configure at least one of the following: the first number of transmissions on each frequency domain resource in at least two frequency domain resources; the first transmission time on each frequency domain resource in at least two frequency domain resources; the first time window on each frequency domain resource in at least two frequency domain resources. Among them, the first number of transmissions of different frequency domain resources is the same or different. The first transmission time of different frequency domain resources is the same or different. The first time windows of different frequency domain resources are the same or different. Exemplarily, the first time window is a time division duplex TDD period.

[0092] Figure 7 The structure of the repeated transmission device provided in the embodiment of the present application is shown in FIG. Figure 1 , applied to terminal devices, such as Figure 7 As shown, the repeated transmission device includes:

[0093] The receiving unit 701 is used to receive first information sent by a network device, where the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

[0094] In some implementations, the receiving unit 701 is further used to receive second information sent by the network device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

[0095] In some implementations, the receiving unit 701 is further used to receive third information sent by the network device, where the third information is used to configure or indicate a first order of the at least two frequency domain resources.

[0096] In some implementations, the means for repeatedly transmitting further comprises:

[0097] The determination unit 702 is used to determine that a first transmission of the physical channel is located at a first frequency domain resource among the at least two frequency domain resources; and determine that a next transmission of the physical channel is located at a second frequency domain resource among the at least two frequency domain resources, wherein the second frequency domain resource is the next frequency domain resource of the first frequency domain resource determined according to the first order.

[0098] In some embodiments, the determination unit 702 is also used to determine that at least one transmission of the physical channel is located in a first frequency domain resource among the at least two frequency domain resources; if the number of transmissions located in the first frequency domain resource reaches the first number of transmissions, or the transmission time located in the first frequency domain resource reaches the first transmission time, or there is no available transmission opportunity for the first frequency domain resource in the remaining time within the first time window, then determine that at least one subsequent transmission of the physical channel is located in a second frequency domain resource among the at least two frequency domain resources, and the second frequency domain resource is the next frequency domain resource of the first frequency domain resource determined according to the first order.

[0099] In some embodiments, the first transmission number and / or the first transmission time are configured by the network device; wherein, the first transmission number of different frequency domain resources is the same or different and / or the first transmission time of different frequency domain resources is the same or different.

[0100] In some implementations, the first time window is configured by the network device or predefined by a protocol; wherein the first time windows of different frequency domain resources are the same or different.

[0101] In some implementations, the first time window is a TDD period.

[0102] In some embodiments, the determination unit 702 is also used to determine that a transmission of the physical channel is located in a first available transmission opportunity of a first frequency domain resource; determine that a next transmission of the physical channel is located in a second frequency domain resource, where the second frequency domain resource is the frequency domain resource where the next available transmission opportunity closest to the first available transmission opportunity among the at least two frequency domain resources is located.

[0103] In some embodiments, the determination unit 702 is further used to determine a frequency domain resource as the second frequency domain resource from the N frequency domain resources if there are N frequency domain resources where the next available transmission opportunity closest to the first available transmission opportunity is located, where N is an integer greater than 1.

[0104] In some embodiments, the second frequency domain resource is the frequency domain resource with the largest index among the N frequency domain resources; or, the second frequency domain resource is the frequency domain resource with the smallest index among the N frequency domain resources; or, the second frequency domain resource is any one of the N frequency domain resources.

[0105] Those skilled in the art should understand that Figure 7 The implementation functions of each unit in the repeated transmission device shown can be understood by referring to the relevant description of the aforementioned method. Figure 7 The functions of each unit in the repeated transmission device shown can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.

[0106] Figure 8 The structure of the repeated transmission device provided in the embodiment of the present application is shown in FIG. Figure 2 , applied to network equipment, such as Figure 8 As shown, the repeated transmission device includes:

[0107] The sending unit 801 is used to send first information to a terminal device, where the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

[0108] In some implementations, the sending unit 801 is further used to send second information to the terminal device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

[0109] In some implementations, the sending unit 801 is further used to send third information to the terminal device, where the third information is used to configure or indicate a first order of the at least two frequency domain resources.

[0110] In some embodiments, the sending unit 801 is also used to send fourth information to the terminal device, and the fourth information is used to configure at least one of the following: the first number of transmissions on each of the at least two frequency domain resources; the first transmission time on each of the at least two frequency domain resources; the first time window on each of the at least two frequency domain resources.

[0111] In some embodiments, the first transmission times of different frequency domain resources are the same or different; and / or, the first transmission times of different frequency domain resources are the same or different; and / or, the first time windows of different frequency domain resources are the same or different.

[0112] In some implementations, the first time window is a TDD period.

[0113] Those skilled in the art should understand that Figure 8 The implementation functions of each unit in the repeated transmission device shown can be understood by referring to the relevant description of the aforementioned method. Figure 8 The functions of each unit in the repeated transmission device shown can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.

[0114] Fig. 9 900 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device may be a terminal device or a network device. Fig. 9 The communication device 900 shown includes a processor 910, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0115] Alternatively, if Fig. 9 As shown, the communication device 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0116] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0117] Alternatively, if Fig. 9 As shown, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0118] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

[0119] Optionally, the communication device 900 may specifically be a network device of an embodiment of the present application, and the communication device 900 may implement corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0120] Optionally, the communication device 900 may specifically be a terminal device of an embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0121] Fig.10 It is a schematic structural diagram of the chip of an embodiment of the present application. Fig.10 The chip 1000 shown includes a processor 1010, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0122] Alternatively, if Fig.10 As shown, the chip 1000 may further include a memory 1020. The processor 1010 may call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.

[0123] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0124] Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0125] Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0126] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0127] Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0128] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0129] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0130] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0131] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0132] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0133] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0134] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0135] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0136] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0137] Optionally, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0138] The embodiment of the present application also provides a computer program.

[0139] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0140] Optionally, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0141] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0142] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0143] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0144] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0145] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0146] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0147] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for repeated transmission, characterized in that: The method comprises: The terminal device receives first information sent by the network device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are a bandwidth part BWP or a carrier or a service cell.

2. The method according to claim 1, characterized in that The method further comprises: The terminal device receives second information sent by the network device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device receives third information sent by the network device, where the third information is used to configure or indicate a first order of the at least two frequency domain resources.

4. The method according to claim 3, characterized in that: The method further comprises: The terminal device determines that a transmission of the physical channel is located in a first frequency domain resource among the at least two frequency domain resources; The terminal device determines that the next transmission of the physical channel is located at a second frequency domain resource among the at least two frequency domain resources, and the second frequency domain resource is a next frequency domain resource of the first frequency domain resource determined according to the first order.

5. The method according to claim 3, characterized in that: The method further comprises: The terminal device determines that at least one transmission of the physical channel is located in a first frequency domain resource among the at least two frequency domain resources; If the number of transmissions located in the first frequency domain resource reaches the first transmission number, or the transmission time located in the first frequency domain resource reaches the first transmission time, or there is no available transmission opportunity for the first frequency domain resource in the remaining time within the first time window, the terminal device determines that at least one subsequent transmission of the physical channel is located in a second frequency domain resource among the at least two frequency domain resources, and the second frequency domain resource is the next frequency domain resource of the first frequency domain resource determined according to the first order.

6. The method according to claim 5, characterized in that The first transmission number and / or the first transmission time are configured by the network device; Among them, the first transmission times of different frequency domain resources are the same or different and / or the first transmission times of different frequency domain resources are the same or different.

7. The method according to claim 5, characterized in that The first time window is configured by the network device or predefined by a protocol; wherein the first time windows of different frequency domain resources are the same or different.

8. The method according to claim 5 or 7, characterized in that: The first time window is a time division duplex (TDD) period.

9. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device determines that a transmission of the physical channel is located at a first available transmission opportunity of a first frequency domain resource; The terminal device determines a second frequency domain resource where the next transmission of the physical channel is located, and the second frequency domain resource is a frequency domain resource where the next available transmission opportunity closest to the first available transmission opportunity among the at least two frequency domain resources is located.

10. The method according to claim 9, characterized in that The terminal device determines the second frequency domain resource where the next transmission of the physical channel is located, including: If there are N frequency domain resources where the next available transmission opportunity closest to the first available transmission opportunity is located, and N is an integer greater than 1, the terminal device determines a frequency domain resource from the N frequency domain resources as the second frequency domain resource.

11. The method according to claim 10, characterized in that The second frequency domain resource is the frequency domain resource with the largest index among the N frequency domain resources; or, The second frequency domain resource is a frequency domain resource with the smallest index among the N frequency domain resources; or, The second frequency domain resource is any frequency domain resource among the N frequency domain resources.

12. A method for repeated transmission, characterized in that: The method comprises: The network device sends first information to the terminal device, where the first information is used to configure or indicate at least two frequency domain resources, where the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

13. The method according to claim 12, characterized in that The method further comprises: The network device sends second information to the terminal device, where the second information is used to configure or indicate the number of repetitions of the physical channel.

14. The method according to claim 12 or 13, characterized in that The method further comprises: The network device sends third information to the terminal device, where the third information is used to configure or indicate a first order of the at least two frequency domain resources.

15. The method according to claim 14, characterized in that The method further comprises: The network device sends fourth information to the terminal device, where the fourth information is used to configure at least one of the following: A first number of transmissions on each frequency domain resource of the at least two frequency domain resources; a first transmission time on each frequency domain resource of the at least two frequency domain resources; A first time window on each frequency domain resource of the at least two frequency domain resources.

16. The method according to claim 15, characterized in that The first transmission times of different frequency domain resources are the same or different; and / or, The first transmission times of different frequency domain resources are the same or different; and / or, The first time windows of different frequency domain resources are the same or different.

17. The method according to claim 15 or 16, characterized in that The first time window is a TDD period.

18. A device for repeated transmission, characterized in that: Applied to a terminal device, the device comprises: A receiving unit is used to receive first information sent by a network device, wherein the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

19. A device for repeated transmission, characterized in that: Applied to network equipment, the device comprises: A sending unit is used to send first information to a terminal device, wherein the first information is used to configure or indicate at least two frequency domain resources, and the at least two frequency domain resources are used for repeated transmission of a physical channel, wherein the frequency domain resources are BWP or carrier or service cell.

20. A communication device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 17.

21. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 17.

22. A computer-readable storage medium, characterized in that: Used to store a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 17.

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