A repeated transmission method, device, equipment and storage medium

Abstract

The present application proposes a repeated transmission method, apparatus, device and storage medium, including: configuring the number of repetitions K of a transmission block TB; when the number of repetitions m in a currently configured authorized transmission period is less than the number of repetitions K, using dynamic authorization to schedule the second communication node to transmit the remaining K-m transmissions, wherein the transmission includes repeated transmission or retransmission, K is greater than 1, and m is greater than 0 and less than K.

Description

Technical Field

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

[0002] The 5th Generation mobile communication technology (5G) system has put forward new requirements in terms of technical indicators such as higher speed, massive links, ultra-low latency, higher reliability, and 100-fold energy efficiency improvement. The NR-based Access to Unlicensed Spectrum (NR-U) technology based on the New Radio (NR) has broad application prospects in the Internet of Things, factory automation, etc. However, many problems with NR-U currently lead to low data transmission reliability. Summary of the invention

[0003] The present application provides a method, device, system and storage medium for repeated transmission.

[0004] In a first aspect, an embodiment of the present application provides a repeated transmission method, the method being applied to a first communication node, comprising:

[0005] Configure the number of repetitions K of the transport block TB;

[0006] When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the second communication node is dynamically authorized to schedule the remaining Km transmissions, where the transmissions include repeated transmissions or retransmissions, K is greater than 1, and m is greater than 0 and less than K.

[0007] In a second aspect, an embodiment of the present application provides a repeated transmission method, which is applied to a second communication node, including:

[0008] When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the remaining Km transmissions are transmitted using pre-configured transmission resources, where K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission.

[0009] In a third aspect, an embodiment of the present application provides a repeated transmission device, including:

[0010] A configuration module, configured to configure the number of repetitions K of the transmission block TB;

[0011] The scheduling module is configured to use dynamic authorization to schedule the second communication node to transmit the remaining Km transmissions when the number of repetitions m in the currently configured authorized transmission cycle is less than the number of repetitions K, wherein the transmission includes repeated transmission or retransmission, K is greater than 1, and m is greater than 0.

[0012] In a fourth aspect, an embodiment of the present application provides a repeated transmission device, including:

[0013] The transmission module is configured to use pre-configured transmission resources to transmit the remaining Km transmissions when the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, wherein K is greater than 1 and m is greater than 0, and the transmission is a repeated transmission or a retransmission.

[0014] In a fifth aspect, an embodiment of the present application provides a device, including:

[0015] one or more processors;

[0016] A memory for storing one or more programs;

[0017] When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the methods in the embodiments of the present application.

[0018] In a sixth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.

[0019] With regard to the above embodiments and other aspects of the present application and their implementation, further description is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a wireless network system provided in an embodiment of the present application;

[0021] Figure 2 A flowchart of a repeated transmission method provided in an embodiment of the present application;

[0022] Figure 3 A flowchart of a repeated transmission method provided in an embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of a dynamic authorization scheduling Km retransmissions provided in an embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of another dynamic grant scheduling Km retransmissions provided in an embodiment of the present application;

[0025] Figure 6 It is a schematic diagram of using adjacent CG resources to transmit the remaining Km transmissions provided by an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the structure of a repeated transmission device provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of a repeated transmission device provided in an embodiment of the present application;

[0028] Fig. 9 It is a structural schematic diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0030] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0031] The technical solution of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LIE-A (Advanced long term evolution) system, Universal Mobile Telecommunication System (UMTS), and 5G system, etc., and the embodiments of the present application are not limited. In this application, the 5G system is used as an example for illustration.

[0032] The embodiments of the present application can be used in wireless networks of different standards. The wireless access network may include different communication nodes in different systems. Figure 1A schematic diagram of the structure of a wireless network system provided in an embodiment of the present application. Figure 1 As shown, the wireless network system 100 includes a base station 101, a user equipment 110, a user equipment 120 and a user equipment 130. The base station 101 performs wireless communication with the user equipment 110, the user equipment 120 and the user equipment 130 respectively.

[0033] First of all, it should be noted that in the embodiments of the present application, the base station may be a device that can communicate with the user terminal. The base station may be any device with wireless transceiver functions. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in 5G communication system, base station in future communication system, access node in WiFi system, wireless relay node, wireless backhaul node, etc. The base station may also be a wireless controller in the cloud radio access network (CRAN) scenario; the base station may also be a small station, a transmission reference point (TRP), etc., which is not limited in the embodiments of the present application.

[0034] In the embodiments of the present application, the user terminal is a device with wireless transceiver function that can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The user terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present application do not limit the application scenarios. The user terminal may sometimes also be referred to as a terminal, an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent or a UE device, etc. The embodiments of the present application are not limited.

[0035] At present, the first phase of standard setting for the fifth generation mobile communication technology (5G), also known as New Radio (NR), has been completed. From the perspective of standard setting and technology development trends, the 5G system is committed to researching technical indicators such as higher speed (Gbps), massive links (1M / Km2), ultra-low latency (1ms), higher reliability, and a hundredfold increase in energy efficiency to support new demand changes. NR-based Access to Unlicensed Spectrum (NR-U) technology has great application prospects in the Internet of Things, factory automation and other aspects, but NR-U currently faces many problems that need to be solved.

[0036] NR-U supports configured grant (CG) transmission, in which each uplink (UL) data transmission of the user equipment (UE) does not need to be accompanied by the base station sending scheduling control information. Similar to CG transmission are grant free (GF) transmission or semi-persistent scheduling (SPS) transmission. In CG transmission, K repeated transmissions can be configured, and the UE can use CG resources to transmit the same transport block (TB) K times to ensure the reliability and latency of the transport block.

[0037] Due to the influence of the arrival time of service data and the actual available starting position of CG resources, the transmission resources actually available to the UE may not be able to complete K repeated transmissions. In order to ensure the index requirements of service data, it is necessary to determine a solution in NR-U to ensure K transmissions and determine the RV sequence of K transmissions. There is currently no solution to this problem. This application proposes a feasible solution to ensure K transmissions and determine the RV sequence of K transmissions.

[0038] In one embodiment, the present application provides a repeated transmission method. Figure 2 A flowchart of a repeated transmission method provided in an embodiment of the present application. The method can be applicable to the case where repeated transmission is performed between a base station and a terminal. The method can be performed by a repeated transmission device provided in the present application, and the repeated transmission device can be implemented by software and / or hardware, and the method is applied to a first communication node.

[0039] like Figure 2 As shown, the repeated transmission method provided in the embodiment of the present application mainly includes steps S21 and S22.

[0040] S21. Configure the number of repetitions K of the transport block TB.

[0041] S22. When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, use dynamic authorization to schedule the second communication node to transmit the remaining Km transmissions, where the transmission includes repeated transmission or retransmission, K is greater than 1, and m is greater than 0 and less than K.

[0042] In this embodiment, the first communication node may be any of the above-mentioned base stations. In this embodiment, the number of repetitions K is configured by the base station. The specific configuration method is not limited in this embodiment. The number of repetitions m refers to the number of times the user terminal has repeatedly transmitted a TB within the currently configured authorized transmission period.

[0043] It should be noted that K and m are both integers.

[0044] Further, utilizing dynamic authorization to schedule the second communication node to transmit the remaining Km transmissions can be understood as the base station sending a dynamic authorization scheduling message to the user terminal, wherein the dynamic authorization scheduling message is used to indicate the transmission resources used by the UE to transmit the remaining Km transmissions.

[0045] In an exemplary embodiment, the use of dynamic grant scheduling to transmit the second communication node for the remaining Km transmissions includes: after the currently configured authorized transmission period has available resources, the use of dynamic grant scheduling to transmit the second communication node for the remaining Km transmissions.

[0046] In an exemplary embodiment, the second communication node is transmitted using dynamic authorization scheduling for the remaining Km transmissions, including: decoding the first m repetitions; if the first m repetitions cannot correctly decode the TB, the second communication node is transmitted using dynamic authorization scheduling for the remaining Km retransmissions.

[0047] In this embodiment, after receiving m repetitions, the base station decodes the first m repetitions. If the first m repetition transmissions can correctly decode the TB, the base station will no longer schedule the remaining Km transmissions of the TB.

[0048] The first m repetitions that can correctly decode the TB include one or more of the following:

[0049] The TB is correctly decoded using 1 repetition;

[0050] Multiple iterations are used to combine and correctly decode the TB.

[0051] In an exemplary embodiment, when the second communication node transmits the remaining Km transmissions using dynamic grant scheduling, the redundancy version RV of the first m repetitions and the RV of the remaining Km transmissions based on the dynamic grant scheduling are determined based on the RV pattern.

[0052] In an exemplary implementation, the RV pattern is configured by radio resource control RRC signaling or indicated by control information for activating configuration authorization transmission resources.

[0053] In an exemplary embodiment, the RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling are determined based on an RV pattern, including: the RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling jointly follow the RV pattern.

[0054] In an exemplary embodiment, the RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic authorization scheduling are determined based on the RV pattern, including: the RV of the last repetition in the first m repetitions and the Km transmissions based on dynamic authorization scheduling jointly follow the RV pattern.

[0055] In an exemplary embodiment, the RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling are determined based on an RV pattern, including: determining the RV of the Km transmissions based on the dynamic grant scheduling according to the RV pattern.

[0056] In an exemplary embodiment, the RVs of the first m repetitions are selected from the RV pattern.

[0057] In an exemplary embodiment, the RV used for the first transmission among the Km transmissions is selected by the first communication node in the RV pattern, and the remaining Km-1 transmissions are determined based on the RV indicated by the dynamic grant scheduling information and the RV pattern.

[0058] In an exemplary embodiment, a feedback indication is sent to the second communication node, wherein, when the feedback indication is in the first state, the second communication node transmits Km retransmissions using the earliest available transmission resources in the next configured authorized transmission cycle.

[0059] In an exemplary embodiment, the feedback indication is a first state, including one of the following:

[0060] The first m repetitions cannot correctly decode the TB;

[0061] The data transmitted by the second communication node is not received.

[0062] In one embodiment, the present application provides a repeated transmission method. Figure 3 A flowchart of a repeated transmission method provided in an embodiment of the present application. The method can be applicable to the case where repeated transmission is performed between a base station and a terminal. The method can be performed by a repeated transmission device provided in the present application, and the repeated transmission device can be implemented by software and / or hardware, and the method is applied to a second communication node.

[0063] like Figure 3 As shown, the repeated transmission method provided in the embodiment of the present application mainly includes step S31.

[0064] S31. When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, use the pre-configured transmission resources to transmit the remaining Km transmissions, where K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission.

[0065] In this embodiment, the second communication node may be any of the above user terminals. In this embodiment, the number of repetitions K is configured by the base station. The specific configuration method is not limited in this embodiment.

[0066] In an exemplary embodiment, transmitting the remaining Km transmissions using pre-configured transmission resources includes: transmitting the remaining Km transmissions using transmission resources configured based on dynamic grant scheduling.

[0067] In an exemplary embodiment, transmitting the remaining Km transmissions based on the transmission resources configured by dynamic grant scheduling includes: after the currently configured grant transmission period has available resources, transmitting the remaining Km transmissions based on the transmission resources configured by dynamic grant scheduling.

[0068] In an exemplary embodiment, the remaining Km transmissions are transmitted based on the transmission resources configured by dynamic authorization scheduling, including: when the first communication node cannot correctly decode the TB using the first m repetitions, the remaining Km retransmissions are transmitted based on the transmission resources configured by dynamic authorization scheduling.

[0069] In an exemplary embodiment, transmitting the remaining Km transmissions using the pre-configured transmission resources includes: transmitting the Km transmissions using the configured authorized transmission resources of the next configured authorized transmission period.

[0070] In an exemplary embodiment, the transmission of Km times using the configured authorized transmission resources of the next configured authorized transmission cycle includes: when the feedback indication is in the first state, the transmission of Km retransmissions using the configured authorized transmission resources of the next adjacent configured authorized transmission cycle, wherein the feedback indication is sent by the first communication node.

[0071] In an exemplary embodiment, Km retransmissions are transmitted using the earliest available configuration grant transmission resource in the next configuration grant transmission cycle.

[0072] In an exemplary embodiment, the feedback indication is a first state, including one of the following:

[0073] The first m repetitions cannot correctly decode the TB;

[0074] The data transmitted by the second communication node is not received.

[0075] In an exemplary embodiment, the method of transmitting Km times using the configured authorization transmission resources of the next configured authorization transmission cycle includes: when no feedback indication is received and no dynamic authorization scheduling is received, transmitting Km times using the configured authorization transmission resources of the next adjacent configured authorization transmission cycle.

[0076] In an exemplary embodiment, the retransmission timer ends at the start position of the configuration grant transmission resource of the next configuration grant transmission period.

[0077] In an exemplary embodiment, the retransmission timer is used to specify the minimum timing between the first transmission and the retransmission, the retransmission timer is configured by RRC signaling or indicated by downlink control information DCI, and the value range of the retransmission timer is less than the configured authorized transmission period.

[0078] In an exemplary embodiment, the using the configuration grant transmission resources of the next configuration grant transmission cycle to transmit Km times includes: using the earliest available configuration grant transmission resources in the next configuration grant transmission cycle to transmit Km times repeatedly.

[0079] In an application example, a method for ensuring K repeated transmissions is provided. It should be noted that the subsequent embodiments are described by taking CG transmission as an example, but the repeated transmission method in this embodiment is not limited to only being applicable to CG transmission. It can also be applied to GF transmission, SPS transmission, etc.

[0080] According to the requirements of service type, reliability and other indicators, CG transmission is configured with K repeated transmissions. Due to the arrival time of the service data to be transmitted and the actual available starting position of the CG resources, the remaining CG resources in the current CG cycle may not be able to guarantee that a certain TB can be transmitted K times. If the number of transmission repetitions of the TB does not reach K times, it will affect the reliability of the TB. In order to ensure the reliability of TB transmission and other indicators, it is necessary to ensure K transmissions of the TB.

[0081] The CG configures each TB to be transmitted K times repetitively, and the UE uses the available CG resources within the current configured authorization period to transmit m repetitions of a certain TB, where K > 1 and 0 < m < K. The following scheme can be used to ensure the K transmissions of the said TB:

[0082] After the CG resources, the base station uses dynamic authorization to schedule the UE to transmit the remaining K - m transmissions, and the said transmissions can be repetitive transmissions or retransmission transmissions.

[0083] Preferably, after receiving the m repetitions, the base station decodes the first m repetitions. If the first m repetitions cannot correctly decode the TB, the base station uses dynamic authorization to schedule the remaining K - m retransmissions.

[0084] For example, the CG transmission configuration K = 4. When the UE transmits the TB, only 2 repetitions can be transmitted with the currently available CG resources, that is, m = 2.

[0085] Figure 4 It is a schematic diagram of dynamically authorizing and scheduling K - m retransmissions provided by an embodiment of the present application. As Figure 4 shown, the UE uses CG resources ( Figure 4 represented by the slant - filled rectangular box in) to transmit 2 repetitions of the TB, namely CG R1 (CG repetition 1, CG R1) and CG R2 (CG repetition 2, CG R2). There are no other resources available for the TB transmission within the current CG period. To ensure K transmissions, after the CG resources, dynamic authorization (dynamic grant, abbreviated as DG) signaling DCI is used to schedule the 2 transmissions to be transmitted. The UE uses dynamic authorization resources ( Figure 4 represented by the dot - filled rectangular box in) to transmit the 2 transmissions to be transmitted, namely DG T1 (DG transmission 1, DG T1) and DG T2 (DG transmission 2, DG T2).

[0086] Figure 5 It is another schematic diagram of dynamically authorizing and scheduling K - m retransmissions provided by an embodiment of the present application. As Figure 5 shown, the UE uses CG resources ( Figure 5 represented by the slant - filled rectangular box in) to transmit 2 repetitions of the TB, namely CG R1 and CG R2. There are no other resources available for the TB transmission within the current CG period. The base station receives the 2 repetitions and decodes the TB. If the base station fails to successfully decode the TB according to the received 2 repetitions, the base station schedules the 2 transmissions to be transmitted through scheduling authorization signaling DCI. The UE uses dynamic authorization resources ( Figure 5The rectangular boxes filled with dots in the middle represent the two transmissions to be transmitted, namely DG T1 and DG T2.

[0087] In an application example, a method for determining a redundant version is provided.

[0088] The transport block (TB) of the UE's uplink service data is carried by the physical uplink shared channel (PUSCH), and each transmission of each TB will have a corresponding redundancy version (RV). In the CG transmission of NR-U, each CG-PUSCH transmission contains CG uplink control information (CG-UCI), and the CG-UCI will carry the RV used for the current CG-PUSCH transmission. Each repeated RV of the TB transmitted using CG resources can follow an RV pattern according to the order, and the RV pattern can be configured by radio resource control (RRC) information or indicated by downlink control information (DCI) that activates the CG resources. For example, if the RV pattern is {0, 2, 3, 1} and K = 4, the RVs used for the 4 repetitions transmitted using CG resources are 0, 2, 3, and 1 respectively.

[0089] As described in the above embodiment, CG configures each TB transmission with K repetitions, and the UE uses the available CG resources within the current period to transmit m repetitions of a certain TB, and schedules the transmission of the remaining K - m transmissions to be transmitted based on dynamic authorization. Where K > 1, 0 < m < K, the RVs of the m repetitions and the K - m transmissions scheduled based on dynamic authorization can be determined according to one of the following schemes:

[0090] The m repetitions and the K - m transmissions scheduled based on dynamic authorization jointly follow the RV pattern to determine the RVs of the K transmissions;

[0091] The last repetition of the m repetitions and the K - m transmissions scheduled based on dynamic authorization jointly follow the RV pattern to determine the RVs of the K - m transmissions;

[0092] The K - m transmissions scheduled based on dynamic authorization follow the RV pattern to determine the RVs of the K - m transmissions; preferably, the base station can independently select the starting RV of the K - m transmissions scheduled based on dynamic authorization and notify the UE through dynamic authorization scheduling information, that is, the RV used for the first transmission in the K - m transmissions is independently selected by the base station from the RV pattern.

[0093] For example, the CG transmission configuration K=4, when the UE transmits the current TB, the available CG resources can only be transmitted twice, that is, m=2, the number of times based on dynamic authorization scheduling is Km=2, and the RV pattern is {0,2,3,1}.

[0094] In Scheme 1, the four transmissions, namely CG R1, CG R2, DG T1 and DG T2, jointly follow the RV pattern {0,2,3,1}, that is, the CG-UCI of the two transmissions CG R1 and CG R2 transmitted using CG resources indicates that the RVs of the two transmissions are 0 and 2 respectively. The base station determines that the dynamic authorization signaling DCI indicates that the RV is 3 based on the received repeated RV and the RV pattern, that is, it indicates that the RV used by DG T1 is 3. According to the RV pattern {0,2,3,1} and the RV indicated by the DCI is 3, it is determined that the RV used by DG T1 is 1.

[0095] In Scheme 2, the four transmissions are CG R1, CG R2, DG T1 and DG T2, and the RV used by the two repeated CG R1 and CG R2 transmitted using CG resources is determined by the UE independently. The range of RV used by the UE is limited to the RV pattern, that is, the RV used by CG R1 and CG R2 is limited to the selection in the RV pattern {0,2,3,1}. The base station determines the RV indicated by the dynamic authorization signaling DCI according to the received CG R2 and the RV pattern. If the CG-UCI indicates that the RV of CG R2 is 3, the base station indicates that the RV is 1 through the dynamic authorization signaling DCI, that is, the RV used by DG T1 is 1. According to the RV pattern {0,2,3,1} and the RV indicated by the DCI is 1, the RV used by CG T2 is determined to be 0.

[0096] In scheme 3, the four transmissions are CG R1, CG R2, DG T1 and DG T2, respectively. The UE independently determines the RV used for the two repetitions of CG R1 and CG R2 transmitted using CG resources. The base station determines the RV sequence used for the scheduled Km=2 transmissions according to the RV pattern, that is, the base station indicates that the RV is 0 through DCI, that is, the RV used for DG T1 is 0, and the RV used for DG T2 is determined to be 2 according to the RV pattern {0,2,3,1} and the RV indicated by DCI is 0. Preferably, the base station comprehensively considers the current situation and determines any RV in the DCI indication RV pattern, such as DCI indicating RV is 2, that is, indicating that the RV used for DG T1 is 2, and the RV used for DG T2 is determined to be 3 according to the RV pattern {0,2,3,1} and the RV indicated by DCI is 2.

[0097] In an application example, a method for ensuring K repetition transmissions is provided.

[0098] According to the requirements of service types and reliability and other indicators, the CG transmission is configured with K times of repeated transmission. Due to the influence of the arrival time of the service data to be transmitted and the actual available starting position of the CG resources, the remaining CG resources may not be able to ensure that a certain TB can be transmitted K times. The fact that the transmission repetition times of the TB do not reach K times will affect the reliability of the TB. In order to ensure the reliability and other indicators of the TB transmission, it is necessary to ensure the K times of transmission of the TB.

[0099] CG configures each TB to be transmitted K times repeatedly. The UE uses the available CG resources within the current configured authorization period to transmit m times of repetition of a certain TB, where K>1 and 0<m<K. One of the following schemes can be used to ensure the K times of transmission of the TB:

[0100] Before the next CG cycle resources arrive, if the UE receives a CG downlink feedback indication (CG-DFI) that the TB decoding is incorrect, the UE uses the CG resources of the next CG cycle to transmit K-m times of retransmission.

[0101] Preferably, the UE uses the earliest available CG resources of the next adjacent CG cycle to transmit K-m times of retransmission.

[0102] Before the next CG cycle resources arrive, if the UE does not receive the CG-DFI and does not receive the retransmission of the dynamic authorization scheduling of the TB, the UE uses the CG resources of the next CG cycle to transmit K-m times of transmission, and the transmission is repeated transmission or retransmission.

[0103] Preferably, the retransmission timer ends at the start position of the next CG cycle resources. The UE uses the earliest CG resources of the next adjacent CG cycle to transmit K-m times of retransmission, where the retransmission timer is used to specify the minimum timing between the first transmission and the retransmission. The retransmission timer is configured by RRC signaling or indicated by DCI, and the value range of the retransmission timer can be less than the CG cycle.

[0104] Preferably, the UE uses the earliest available CG resources of the next adjacent CG cycle to transmit the remaining K-m times of repetition.

[0105] For example, the CG transmission is configured with K = 4. When the UE transmits the current TB, the available CG resources in the current CG cycle can only be transmitted 2 times repeatedly, that is, m = 2.

[0106] Figure 6 It is a schematic diagram of using adjacent CG resources to transmit the remaining K-m times of transmission provided by the embodiment of the present application; Scheme 1 is as Figure 6As shown, the UE uses the available resources of the current CG cycle to transmit 2 repetitions of the TB, namely CG R1 and CG R2. There are no other resources available for the TB transmission in the current CG cycle. Before the start of the next CG cycle resources, the UE receives a CG-DFI indicating that the TB is not decoded successfully, that is, indicating that the TB decoding result is NACK. Then the UE uses the earliest available CG resources of the next CG cycle to retransmit Km=2 retransmissions. Figure 6 The two retransmissions shown are CG R1-2 and CG R2-2.

[0107] Solution 2 Figure 6 As shown, the UE uses the available resources of the current CG cycle to transmit 2 repetitions of the TB, namely CGR1 and CG R2. There are no other resources available for the transmission of the TB in the current CG cycle. Before the start of the next CG cycle resources, the UE does not receive CG-DFI and does not receive dynamic authorization to schedule the retransmission of the TB. Then the UE uses the earliest available CG resources of the next CG cycle to transmit Km=2 times, as shown in FIG. Figure 6 The two transmissions shown are CG R1-2 and CG R2-2.

[0108] Preferably, the retransmission timer ends at the start position of the next CG cycle resource, and the UE uses the earliest CG resource of the next adjacent CG cycle to transmit Km retransmissions, such as Figure 3 The two retransmissions shown are CG R1-2 and CG R2-2.

[0109] Preferably, the UE uses the earliest available CG resource in the next CG period to transmit Km=2 repetitions, such as Figure 6 The two repeats shown are CG R1-2 and CG R2-2.

[0110] In one embodiment, the present application provides a repeated transmission device. Figure 7 A schematic diagram of a repeated transmission device provided in an embodiment of the present application. The device can be applicable to the case where repeated transmission is performed between a base station and a terminal. The repeated transmission device can be implemented by software and / or hardware, and the device is configured in a first communication node.

[0111] like Figure 7 As shown, the repeated transmission device provided in the embodiment of the present application mainly includes a configuration module 71 and a scheduling module 72.

[0112] The configuration module 71 is configured to configure the number of repetitions K of the transmission block TB.

[0113] The scheduling module 72 is configured to use dynamic authorization to schedule the second communication node to transmit the remaining Km transmissions when the number of repetitions m in the currently configured authorized transmission cycle is less than the number of repetitions K, wherein the transmission includes repeated transmission or retransmission, K is greater than 1, and m is greater than 0 and less than K.

[0114] In an exemplary embodiment, the scheduling module 72 is configured to use dynamic grant to schedule the second communication node to transmit the remaining Km transmissions after the currently configured grant transmission period has available resources.

[0115] In an exemplary embodiment, the scheduling module 72 is configured to decode the first m repetitions; if the first m repetitions cannot correctly decode the TB, use dynamic grant scheduling to schedule the second communication node to transmit the remaining Km retransmissions.

[0116] In an exemplary embodiment, the device also includes: an RV determination module, which is configured to determine the redundant version RV of the first m repetitions and the RV of the remaining Km transmissions based on the dynamic authorization scheduling based on the RV pattern when the second communication node transmits the remaining Km transmissions using dynamic authorization scheduling.

[0117] In an exemplary implementation, the RV pattern is configured by radio resource control RRC signaling or indicated by control information for activating configuration authorization transmission resources.

[0118] In an exemplary embodiment, the RV determination module is configured so that the RV of the first m repetitions and the RV of Km transmissions based on dynamic grant scheduling jointly follow the RV pattern.

[0119] In an exemplary embodiment, the RV determination module is configured so that the RV of the last repetition among the first m repetitions and the Km transmissions based on dynamic grant scheduling jointly follow the RV pattern.

[0120] In an exemplary embodiment, the RV determination module is configured to determine the RV of the Km transmissions according to the RV pattern based on the Km transmissions scheduled by dynamic grant.

[0121] In an exemplary embodiment, the RVs of the first m repetitions are selected from the RV pattern.

[0122] In an exemplary embodiment, the RV used for the first transmission among the Km transmissions is selected by the first communication node in the RV pattern, and the remaining Km-1 transmissions are determined based on the RV indicated by the dynamic grant scheduling information and the RV pattern.

[0123] In an exemplary embodiment, the device further includes: a sending module configured to send a feedback indication to the second communication node, wherein, when the feedback indication is in the first state, the second communication node transmits Km retransmissions using the earliest available transmission resources in the next configured authorized transmission cycle.

[0124] In an exemplary embodiment, the feedback indication is a first state, including one of the following:

[0125] The first m repetitions cannot correctly decode the TB;

[0126] The data transmitted by the second communication node is not received.

[0127] The repeated transmission device provided in this embodiment can execute the repeated transmission method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not described in detail in this embodiment, please refer to the repeated transmission method provided in any embodiment of the present invention.

[0128] It is worth noting that in the embodiment of the above-mentioned repeated transmission device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0129] In one embodiment, the present application provides a repeated transmission device. Figure 8 A schematic diagram of a repeated transmission device provided in an embodiment of the present application. The device can be applicable to the case where repeated transmission is performed between a base station and a terminal. The repeated transmission device can be implemented by software and / or hardware, and the device is configured in a second communication node.

[0130] like Figure 8 As shown, the repeated transmission device provided in the embodiment of the present application mainly includes a transmission module 81.

[0131] The transmission module 81 is configured to use pre-configured transmission resources to transmit the remaining Km transmissions when the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, wherein K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission.

[0132] In an exemplary embodiment, the transmission module 81 is configured to transmit the remaining Km transmissions based on the transmission resources configured by the dynamic grant scheduling.

[0133] In an exemplary embodiment, the transmission module 81 is configured to transmit the remaining Km transmissions based on the transmission resources configured by the dynamic grant scheduling after the currently configured grant transmission period has available resources.

[0134] In an exemplary embodiment, the transmission module 81 is configured to transmit the remaining Km retransmissions based on the transmission resources configured by the dynamic grant scheduling when the first communication node cannot correctly decode the TB using the first m repetitions.

[0135] In an exemplary implementation, the transmission module 81 is specifically configured to transmit Km times using the configuration grant transmission resources of the next configuration grant transmission period.

[0136] In an exemplary embodiment, the transmission module 81 is configured to transmit Km retransmissions using the configured authorized transmission resources of the next adjacent configured authorized transmission cycle when the feedback indication is in the first state, wherein the feedback indication is sent by the first communication node.

[0137] In an exemplary embodiment, Km retransmissions are transmitted using the earliest available configuration grant transmission resource in the next configuration grant transmission cycle.

[0138] In an exemplary embodiment, the feedback indication is a first state, including one of the following:

[0139] The first m repetitions cannot correctly decode the TB;

[0140] The data transmitted by the second communication node is not received.

[0141] In an exemplary embodiment, the transmission module 81 is configured to transmit Km times using the configured grant transmission resources of the next configured grant transmission period when no feedback indication is received and no dynamic grant scheduling is received.

[0142] In an exemplary embodiment, the retransmission timer ends at the start position of the configuration grant transmission resource of the next configuration grant transmission period.

[0143] In an exemplary embodiment, the retransmission timer is used to specify the minimum timing between the first transmission and the retransmission, the retransmission timer is configured by RRC signaling or indicated by downlink control information DCI, and the value range of the retransmission timer is less than the configured authorized transmission period.

[0144] In an exemplary embodiment, the transmission module 81 is configured to transmit Km repetitions using the earliest available configuration grant transmission resource in the next configuration grant transmission cycle.

[0145] The receiving device provided in this embodiment can execute the repeated transmission method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not described in detail in this embodiment, please refer to the repeated transmission method provided in any embodiment of the present invention.

[0146] It is worth noting that in the embodiment of the above-mentioned repeated transmission device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0147] The present application also provides a device, Fig. 9 is a schematic diagram of the structure of a device provided in an embodiment of the present application, such as Fig. 9 As shown, the device includes a processor 910, a memory 920, an input device 930, an output device 990 and a communication device 95; the number of processors 910 in the device can be one or more. Fig. 9 A processor 910 is taken as an example; the processor 910, memory 920, input device 930 and output device 990 in the device can be connected via a bus or other means. Fig. 9 The example of connecting through bus is taken in the following.

[0148] The memory 920, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as the program instructions / modules corresponding to the repeated transmission method in the embodiment of the present application (for example, the configuration module 71 and the determination module 72 in the repeated transmission device), and the program instructions / modules corresponding to the repeated transmission method in the embodiment of the present application (for example, the transmission module 81 in the repeated transmission device). The processor 910 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 920, that is, implementing any method provided in the embodiment of the present application.

[0149] The memory 920 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory 920 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 920 may further include a memory remotely arranged relative to the processor 910, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0150] The input device 930 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 990 may include a display device such as a display screen.

[0151] The communication device 950 may include a receiver and a transmitter. The communication device 950 is configured to perform information transmission and reception communication according to the control of the processor 910.

[0152] It should be noted that, when the above-mentioned device is a first communication node, the processor 910 executes various functional applications and data processing by running a program stored in the system memory 920, for example, implementing the repeated transmission method provided in an embodiment of the present application, the method including:

[0153] Configure the number of repetitions K of the transport block TB.

[0154] When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the second communication node is dynamically authorized to schedule the transmission of the remaining Km transmissions, where the transmission includes repeated transmissions or retransmissions, K is greater than 1, and m is greater than 0 and less than K.

[0155] Of course, those skilled in the art can understand that the processor 910 can also implement the technical solution of the repeated transmission method provided in any embodiment of the present application. The hardware structure and function of the device can refer to the content explanation of this embodiment.

[0156] It should be noted that, when the above-mentioned device is a second communication node, the processor 910 executes various functional applications and data processing by running the program stored in the system memory 920, for example, implementing the repeated transmission method provided in the embodiment of the present application, the method including:

[0157] When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the remaining Km transmissions are transmitted using pre-configured transmission resources, where K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission.

[0158] Of course, those skilled in the art can understand that the processor 910 can also implement the technical solution of the repeated transmission method provided in any embodiment of the present application. The hardware structure and function of the device can refer to the content explanation of this embodiment.

[0159] The embodiment of the present application further provides a storage medium containing computer executable instructions, wherein the computer executable instructions are used to perform a repeated transmission method when executed by a computer processor, the method comprising:

[0160] Configure the number of repetitions K of the transport block TB.

[0161] When the number of repetitions m in the current transmission configuration authorization period is less than the number of repetitions K, the second communication node is transmitted using dynamic authorization scheduling for the remaining Km transmissions, where the transmission includes repeated transmissions or retransmissions, K is greater than 1, and m is greater than 0 and less than K.

[0162] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application, whose computer executable instructions are not limited to the method operations described above, can also execute related operations in the repeated transmission method provided in any embodiment of the present application.

[0163] The embodiment of the present application further provides a storage medium containing computer executable instructions, wherein the computer executable instructions are used to perform a repeated transmission method when executed by a computer processor, the method comprising:

[0164] When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the remaining Km transmissions are transmitted using pre-configured transmission resources, where K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission.

[0165] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application, whose computer executable instructions are not limited to the repeated transmission method operations described above, can also execute related operations in the receiving method provided in any embodiment of the present application.

[0166] Through the above description of the implementation method, the technicians in the relevant field can clearly understand that the present application can be implemented with the help of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0167] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0168] It will be appreciated by those skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.

[0169] In general, various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, microprocessor or other computing device, although the present application is not limited thereto.

[0170] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0171] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0172] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A repeated transmission method, characterized in that: The method is applied to a first communication node, comprising: Configure the number of repetitions K of the transport block TB; When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the second communication node is scheduled to transmit the remaining Km transmissions using dynamic authorization, wherein the transmissions include repeated transmissions or retransmissions, K is greater than 1, and m is greater than 0 and less than K; The method further comprises: sending a feedback indication to the second communication node; The feedback indication is a first state, including one of the following: The first m repetitions cannot correctly decode the TB; The data transmitted by the second communication node is not received.

2. The method according to claim 1, characterized in that The method of utilizing dynamic grant to schedule the second communication node to transmit the remaining Km transmissions includes: After the currently configured authorized transmission period has available resources, the second communication node is scheduled to transmit the remaining Km transmissions using dynamic authorization.

3. The method according to claim 2, characterized in that The second communication node is scheduled to transmit the remaining Km transmissions using dynamic grant, including: Decode the first m repetitions; In case the first m repetitions fail to correctly decode the TB, the second communication node is scheduled to transmit the remaining Km retransmissions using dynamic grant.

4. The method according to any one of claims 1 to 3, characterized in that: In case the second communication node transmits the remaining Km transmissions using dynamic grant scheduling, the redundancy version RV of the first m repetitions and the RV of the remaining Km transmissions based on the dynamic grant scheduling are determined based on the RV pattern.

5. The method according to claim 4, characterized in that The RV pattern is configured by radio resource control RRC signaling or indicated by control information for activating configuration authorization transmission resources.

6. The method according to claim 4, characterized in that The RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling are determined based on the RV pattern, including: The RV of the first m repetitions and the RV of Km transmissions based on dynamic grant scheduling follow the RV pattern.

7. The method according to claim 4, characterized in that The RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling are determined based on the RV pattern, including: The RV of the last repetition in the first m repetitions and the Km transmissions based on dynamic grant scheduling follow the RV pattern.

8. The method according to claim 4, characterized in that The RV of the first m repetitions and the RV of the remaining Km transmissions based on dynamic grant scheduling are determined based on the RV pattern, including: The Km transmissions based on dynamic grant scheduling follow the RV pattern to determine the RV of the Km transmissions.

9. The method according to any one of claims 4 to 8, characterized in that: The RVs of the first m repetitions are selected in the RV pattern.

10. The method according to claim 8, characterized in that The RV used for the first transmission among the Km transmissions is selected by the first communication node in the RV pattern, and the remaining Km-1 transmissions are determined based on the RV indicated by the dynamic grant scheduling information and the RV pattern.

11. The method according to claim 1, characterized in that When the feedback indication is in the first state, the second communication node transmits Km retransmissions using the earliest available transmission resources in the next configured authorized transmission cycle.

12. A repeated transmission method, characterized in that: The method is applied to a second communication node, comprising: When the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, the remaining Km transmissions are transmitted using the pre-configured transmission resources, where K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission transmission; The method of transmitting the remaining Km transmissions using the pre-configured transmission resources includes: Use the configuration authorization transmission resources of the next configuration authorization transmission cycle to transmit Km times; The step of transmitting Km times using the configuration grant transmission resources of the next configuration grant transmission cycle includes: When the feedback indication is in the first state, use the configuration grant transmission resource of the next configuration grant transmission cycle to transmit Km retransmissions, wherein the feedback indication is sent by the first communication node; The feedback indication is a first state, including one of the following: The first m repetitions cannot correctly decode TB; The data transmitted by the second communication node is not received.

13. The method according to claim 12, characterized in that Use the pre-configured transmission resources to transmit the remaining Km transmissions, including: The remaining Km transmissions are transmitted based on the transmission resources configured by dynamic grant scheduling.

14. The method according to claim 13, characterized in that The remaining Km transmissions are transmitted based on the transmission resources configured by dynamic grant scheduling, including: After the currently configured authorized transmission period has available resources, the remaining Km transmissions are transmitted based on the transmission resources configured by dynamic authorization scheduling.

15. The method according to claim 14, characterized in that The remaining Km transmissions are transmitted based on the transmission resources configured by dynamic grant scheduling, including: In the case that the first communication node cannot correctly decode the TB using the first m repetitions, the remaining Km retransmissions are transmitted based on the transmission resources configured by dynamic grant scheduling.

16. The method according to claim 12, characterized in that The earliest available configuration grant transmission resource in the next configuration grant transmission cycle is used to transmit Km retransmissions.

17. The method according to claim 12, characterized in that The step of transmitting Km times using the configuration grant transmission resources of the next configuration grant transmission cycle includes: In the case where no feedback indication is received and no dynamic grant scheduling is received, Km transmissions are transmitted using the configured grant transmission resources of the next adjacent configured grant transmission period.

18. The method according to claim 17, characterized in that The retransmission timer ends at the start position of the configuration grant transmission resource of the next configuration grant transmission period.

19. The method according to claim 18, characterized in that The retransmission timer is used to specify the minimum timing between the first transmission and the retransmission. The retransmission timer is configured by RRC signaling or indicated by downlink control information DCI. The value range of the retransmission timer is less than the configured authorized transmission period.

20. The method according to claim 17, characterized in that The step of using the configuration grant transmission resource of the next configuration grant transmission cycle to transmit Km times includes: Km repetitions are transmitted using the earliest available configuration grant transmission resource in the next configuration grant transmission cycle.

21. A repeated transmission device, characterized in that: include: A configuration module, configured to configure the number of repetitions K of the transmission block TB; A scheduling module, configured to use dynamic authorization to schedule the second communication node to transmit the remaining Km transmissions when the number of repetitions m in the current configuration authorization transmission period is less than the number of repetitions K, wherein the transmission includes repeated transmission or retransmission transmission, K is greater than 1, and m is greater than 0 and less than K; The device also includes: A sending module, configured to send a feedback indication to the second communication node; The feedback indication is a first state, including one of the following: The first m repetitions cannot correctly decode the TB; The data transmitted by the second communication node is not received.

22. A repeated transmission device, characterized in that: include: A transmission module, configured to transmit the remaining Km transmissions using pre-configured transmission resources when the number of repetitions m in the currently configured authorized transmission period is less than the number of repetitions K, wherein K is greater than 1, m is greater than 0 and less than K, and the transmission is a repeated transmission or a retransmission transmission; Wherein, the transmission module is specifically configured to transmit Km times using the configuration authorization transmission resources of the next configuration authorization transmission cycle; The transmission module is specifically configured to transmit Km retransmissions using the configuration grant transmission resources of the next configuration grant transmission cycle when the feedback indication is in the first state, wherein the feedback indication is sent by the first communication node; The feedback indication is a first state, including one of the following: The first m repetitions cannot correctly decode TB; The data transmitted by the second communication node is not received.

23. A communication device, characterized in that: include: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 20.

24. A storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 20 is implemented.

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