HARQ-ACK feedback method and device

Abstract

The embodiment of the present application provides a HARQ-ACK feedback method and device. For the satellite Internet system, before the terminal device obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, a scheme of performing HARQ-ACK feedback only for a specific HARQ process and performing HARQ-ACK feedback for the activated DCI is used to ensure that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying the terminal implementation and ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPS PDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a HARQ-ACK feedback method and device. Background Art

[0002] The satellite Internet system adopts a more conservative modulation and coding method, so the data transmission reliability is high. It does not need HARQ-ACK feedback for all Physical Downlink Shared Channel (PDSCH) transmissions. Currently, it only supports the feedback of Hybrid Automatic Repeat request-ACKnowledgment (HARQ-ACK) information for a maximum of two HARQ processes.

[0003] The base station configures the terminal / user equipment (UE) through dedicated high-layer signaling to enable HARQ-ACK feedback for which HARQ processes. When the terminal device has not received the dedicated high-layer configuration information, it is currently unclear how to perform HARQ-ACK feedback. Summary of the invention

[0004] In view of the problems existing in the prior art, the embodiments of the present application provide a HARQ-ACK feedback method and device.

[0005] In a first aspect, an embodiment of the present application provides a HARQ-ACK feedback method, which is applied to a terminal device, including:

[0006] Before obtaining the dedicated configuration information of whether to enable hybrid automatic repeat request acknowledgment HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration, HARQ-ACK feedback is performed based on a predetermined method.

[0007] Optionally, the performing HARQ-ACK feedback based on a predetermined manner includes any one of the following:

[0008] No HARQ-ACK feedback is performed for all HARQ processes; or

[0009] Perform HARQ-ACK feedback for all HARQ processes; or

[0010] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0011] Optionally, the performing HARQ-ACK feedback on the HARQ process that meets the preset condition includes any one or more of the following:

[0012] Performing HARQ-ACK feedback for the N HARQ processes with the smallest numbers; or

[0013] Perform HARQ-ACK feedback for the N HARQ processes with the largest numbers; or

[0014] Performing HARQ-ACK feedback for the HARQ process whose HARQ process number is a preset value;

[0015] Wherein, N is a natural number.

[0016] Optionally, the preset value is all 0s or all 1s.

[0017] Optionally, the method further comprises:

[0018] For a HARQ process determined to enable HARQ-ACK feedback, after feeding back HARQ-ACK for the most recent physical downlink shared channel PDSCH transmission of the HARQ process, receiving scheduling information for scheduling a PDSCH corresponding to the HARQ process; or

[0019] For a HARQ process determined to have HARQ-ACK feedback not enabled, after T time after the most recent PDSCH transmission for the HARQ process, scheduling information for scheduling the PDSCH corresponding to the HARQ process is received; wherein T is the processing time corresponding to the PDSCH.

[0020] In a second aspect, an embodiment of the present application provides a HARQ-ACK feedback method, which is applied to a terminal device, including:

[0021] Receive activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH;

[0022] Perform HARQ-ACK feedback on the activation DCI.

[0023] Optionally, the performing HARQ-ACK feedback on the activation DCI includes:

[0024] When the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, performing HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0025] In the case where HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is not performed on the activation downlink control information DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH.

[0026] Optionally, the method further comprises any one or more of the following:

[0027] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDCCH carrying the activation DCI and the HARQ-ACK feedback timing; or

[0028] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDCCH carrying the activation DCI is located and the HARQ-ACK feedback timing; or

[0029] The HARQ-ACK feedback of the activated DCI corresponding to the SPS PDSCH and the HARQ-ACK feedback corresponding to the dynamic PDSCH are transmitted on different physical uplink control channels PUCCH; or

[0030] After a preset number of symbols after the last symbol of the PDCCH carrying the activation DCI corresponding to the SPS PDSCH, HARQ-ACK information corresponding to the activation DCI is fed back.

[0031] Optionally, the performing HARQ-ACK feedback on the activation DCI includes:

[0032] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

[0033] Optionally, the method further comprises:

[0034] The HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the activated DCI are transmitted on the same PUCCH resource.

[0035] Optionally, the method further comprises any one or more of the following:

[0036] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDSCH carrying the activation DCI scheduling and the HARQ-ACK feedback timing; or

[0037] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDSCH carrying the activated DCI scheduling is located and the HARQ-ACK feedback timing; or

[0038] The HARQ-ACK feedback information of the activated DCI is located before the feedback information of the corresponding PDSCH; or

[0039] The HARQ-ACK feedback information of the activated DCI is located after the feedback information of the corresponding PDSCH.

[0040] Optionally, the method further comprises:

[0041] In the case that SPS PDSCH corresponds to multiple HARQ processes, whether HARQ-ACK feedback is enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is enabled for the specific HARQ process corresponding to the SPS PDSCH; or whether HARQ-ACK feedback is not enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is not enabled for the specific HARQ process corresponding to the SPS PDSCH.

[0042] Optionally, the method further comprises:

[0043] The PUCCH resource used is determined based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information, and HARQ-ACK feedback is performed on the activation DCI.

[0044] Optionally, the performing HARQ-ACK feedback on activation downlink control information DCI corresponding to the SPS PDSCH includes:

[0045] When the activation DCI corresponding to the SPS PDSCH is detected, ACK is fed back for the activation DCI.

[0046] In a third aspect, an embodiment of the present application provides a HARQ-ACK feedback method, which is applied to a network device, including:

[0047] Receive HARQ-ACK feedback information sent by a terminal device; wherein the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0048] Optionally, the predetermined method includes any one of the following:

[0049] No HARQ-ACK feedback is performed for all HARQ processes; or

[0050] Perform HARQ-ACK feedback for all HARQ processes; or

[0051] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0052] Optionally, the preset conditions include any one or more of the following:

[0053] The N HARQ processes with the smallest numbers; or

[0054] The N HARQ processes with the largest number; or

[0055] The HARQ process number is a HARQ process with a preset value;

[0056] Wherein, N is a natural number.

[0057] Optionally, the preset value is all 0s or all 1s.

[0058] In a fourth aspect, an embodiment of the present application provides a HARQ-ACK feedback method, which is applied to a network device, including:

[0059] Send activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH to the terminal device;

[0060] Receive HARQ-ACK feedback from the terminal device in response to the activated DCI.

[0061] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI includes:

[0062] In a case where the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, receiving HARQ-ACK feedback performed by the terminal device on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0063] In a case where HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received.

[0064] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI includes:

[0065] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received, and the HARQ-ACK feedback performed by the terminal device on the DCI corresponding to the SPS PDSCH is received.

[0066] Optionally, the method further comprises:

[0067] In the case that SPS PDSCH corresponds to multiple HARQ processes, whether HARQ-ACK feedback is enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is enabled for the specific HARQ process corresponding to the SPS PDSCH; or whether HARQ-ACK feedback is not enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is not enabled for the specific HARQ process corresponding to the SPS PDSCH.

[0068] In a fifth aspect, an embodiment of the present application further provides a terminal device, including a memory, a transceiver, and a processor:

[0069] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the HARQ-ACK feedback method described in the first aspect or the second aspect as described above.

[0070] In a sixth aspect, an embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor:

[0071] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the HARQ-ACK feedback method as described in the third aspect or the fourth aspect as described above.

[0072] In a seventh aspect, an embodiment of the present application further provides a HARQ-ACK feedback device, which is applied to a terminal device, including:

[0073] The first processing module is used to perform HARQ-ACK feedback based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0074] In an eighth aspect, an embodiment of the present application further provides a HARQ-ACK feedback device, which is applied to a terminal device, including:

[0075] A first receiving module is used to receive activation downlink control information DCI corresponding to the semi-persistent scheduling SPS PDSCH;

[0076] A feedback module is used to perform HARQ-ACK feedback on the activation DCI.

[0077] In a ninth aspect, an embodiment of the present application further provides a HARQ-ACK feedback device, which is applied to a network device, including:

[0078] The second processing module is used to receive HARQ-ACK feedback information sent by the terminal device; wherein, the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining the exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0079] In a tenth aspect, an embodiment of the present application further provides a HARQ-ACK feedback device, which is applied to a network device, including:

[0080] A sending module, used to send activation downlink control information DCI corresponding to the semi-persistent scheduling SPS PDSCH to the terminal device;

[0081] The second receiving module is used to receive the HARQ-ACK feedback of the terminal device to the activated DCI.

[0082] In the eleventh aspect, an embodiment of the present application also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the HARQ-ACK feedback method described in the first aspect, or the HARQ-ACK feedback method described in the second aspect, or the HARQ-ACK feedback method described in the third aspect, or the HARQ-ACK feedback method described in the fourth aspect.

[0083] The HARQ-ACK feedback method and device provided in the embodiment of the present application, before the terminal device obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, only performs HARQ-ACK feedback on a specific HARQ process, and performs HARQ-ACK feedback on the activated DCI, to ensure that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying the terminal implementation while ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPS PDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0085] Figure 1 One of the flow charts of the HARQ-ACK feedback method provided in an embodiment of the present application;

[0086] Figure 2 A second flow chart of the HARQ-ACK feedback method provided in an embodiment of the present application;

[0087] Figure 3 A third flowchart of the HARQ-ACK feedback method provided in an embodiment of the present application;

[0088] Figure 4 A fourth flowchart of the HARQ-ACK feedback method provided in an embodiment of the present application;

[0089] Figure 5 One of the schematic diagrams of the terminal device structure provided in the embodiment of the present application;

[0090] Figure 6 The second schematic diagram of the terminal device structure provided in the embodiment of the present application;

[0091] Figure 7 One of the schematic diagrams of the network device structure provided in the embodiment of the present application;

[0092] Figure 8 The second schematic diagram of the network device structure provided in the embodiment of the present application;

[0093] Fig. 9 One of the structural diagrams of the HARQ-ACK feedback device provided in an embodiment of the present application;

[0094] Fig.10 The second structural diagram of the HARQ-ACK feedback device provided in the embodiment of the present application;

[0095] Fig.11 The third structural diagram of the HARQ-ACK feedback device provided in the embodiment of the present application;

[0096] Fig.12 The fourth structural diagram of the HARQ-ACK feedback device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0097] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0098] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0099] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0100] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0101] The terminal device (e.g., UE) involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0102] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0103] The satellite Internet system uses a more conservative modulation and coding method, so the data transmission reliability is high. It is not necessary to perform HARQ-ACK feedback for all PDSCH transmissions. Currently, it only supports feedback of HARQ-ACK information for a maximum of two HARQ processes. The base station configures the terminal through exclusive high-level signaling which HARQ processes to enable HARQ-ACK feedback. When the terminal has not received the exclusive high-level configuration information, it is not clear how to perform HARQ-ACK feedback.

[0104] In the NR communication system, HARQ-ACK feedback is required for PDSCH transmissions corresponding to all HARQ processes, and NR supports the use of semi-static codebooks and dynamic codebook solutions. When the terminal device is configured to use the semi-static HARQ-ACK codebook, the candidate position of the PDSCH transmission is determined according to the semi-static configuration information such as the HARQ-ACK feedback timing (K1), the semi-static time slot structure (if configured), and the PDSCH candidate time domain resource allocation information, and the HARQ-ACK codebook is generated based on the PDSCH transmission received in the candidate position of the PDSCH transmission. When the terminal device is configured to use the dynamic HARQ-ACK codebook, the bit order and total number of bits of the feedback HARQ-ACK codebook are determined based on the count DAI (Counter DAI, C-DAI) and the total DAI (Total DAI, T-DAI) indicated by the downlink DCI. For SPS PDSCH transmission, the terminal device will perform HARQ-ACK feedback for all SPS PDSCH transmissions. Before the terminal device obtains the dedicated codebook configuration information, the terminal device only feeds back 1-bit HARQ-ACK information. That is, before the terminal device obtains the dedicated codebook configuration information, the base station cannot schedule multiple PDSCHs to feed back on the same PUCCH resource.

[0105] In the satellite Internet system, the base station configures whether to enable HARQ-ACK feedback for each HARQ process, and can configure up to two HARQ processes to enable HARQ-ACK feedback. Therefore, the HARQ-ACK codebook only needs to support 2 bits at most, corresponding to the HARQ process with HARQ feedback enabled, and does not need to support two HARQ-ACK codebooks in NR. Before the terminal device obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process, there is no clear solution for how to perform HARQ-ACK feedback. If no HARQ-ACK information is fed back, the terminal device will not feed back HARQ-ACK for Msg4 at the time of initial access and some important exclusive RRC configuration information. At this time, it is impossible to ensure that the base station and the terminal device understand each other consistently, so the transmission may not be carried out smoothly. If it is consistent with NR and only 1 bit of information is fed back, it may happen that multiple HARQ processes need to feed back 1 bit of information in different time slots, and the terminal device implementation does not support more than 2 HARQ processes for HARQ-ACK feedback. Therefore, it is necessary to consider how to perform HARQ-ACK feedback before obtaining exclusive configuration information.

[0106] Furthermore, for Semi-Persistent Scheduling (SPS PDSCH) transmission, if the HARQ process corresponding to the activated SPS PDSCH does not enable HARQ-ACK feedback, the base station cannot know whether the terminal device has correctly received the activation information. After sending the SPS PDSCH activation signaling, the base station will periodically send SPS PDSCH, but the terminal device will not receive the SPS PDSCH subsequently because it has not received the activation signaling, resulting in resource waste and reduced transmission efficiency.

[0107] For SPS PDSCH transmission, if the corresponding HARQ process is enabled for feedback, the terminal device will provide feedback for the HARQ process corresponding to this SPS PDSCH transmission. If the corresponding HARQ process is not enabled for feedback, the terminal device will not provide feedback for the HARQ process corresponding to this SPS PDSCH transmission. Before the terminal device obtains the configuration information of whether to enable HARQ-ACK feedback for each HARQ process, it does not know which HARQ processes have HARQ-ACK feedback enabled, so it is not clear how to perform HARQ-ACK feedback.

[0108] In the NR system, all SPS PDSCHs are fed back, and the base station can determine whether the terminal device has correctly received the SPS PDSCH activation signaling based on the terminal's feedback information. However, for SPS PDSCH transmission in the satellite Internet system, if the corresponding HARQ process is not enabled for feedback, there is currently no way to solve the problem that the base station and the terminal device may have inconsistent understandings of whether the SPS PDSCH is activated.

[0109] Figure 1 One of the flow charts of the HARQ-ACK feedback method provided in the embodiment of the present application is as follows: Figure 1 As shown, the method can be applied to a terminal device UE, and the method at least includes the following steps:

[0110] Step 100: Before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request acknowledgment HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration, perform HARQ-ACK feedback based on a predetermined method.

[0111] Specifically, the exclusive configuration information is suitable for configuring whether the UE turns on the HARQ-ACK feedback corresponding to the HARQ process. After the UE receives the exclusive configuration information, the UE can perform the HARQ-ACK feedback operation corresponding to each HARQ process based on the indication of the exclusive configuration information. However, if the UE does not obtain the exclusive configuration information of whether each HARQ process is configured to turn on the HARQ-ACK feedback, the UE does not know how to perform HARQ-ACK feedback. Therefore, each embodiment of the present application provides a solution for how to perform HARQ-ACK feedback for each HARQ process before the UE obtains the exclusive configuration information of whether each HARQ process is configured to turn on the HARQ-ACK feedback. Specifically, the UE can perform HARQ-ACK feedback based on a predetermined method, and the predetermined method can be pre-defined in the standard.

[0112] Further, before the terminal device obtains the dedicated configuration information of whether each HARQ process is configured to enable HARQ-ACK feedback, HARQ-ACK feedback is performed in a predetermined manner, and the predetermined manner includes any of the following cases:

[0113] No HARQ-ACK feedback is performed for any HARQ process;

[0114] HARQ-ACK feedback is provided for all HARQ processes;

[0115] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0116] Specifically, the predetermined method can be specified based on actual needs. The embodiments of the present application provide the following methods and introduce them.

[0117] One predetermined manner is: no HARQ-ACK feedback is performed for all HARQ processes. It is understandable that before the UE obtains the dedicated configuration information of whether to enable HARQ-ACK feedback for each HARQ process, no HARQ-ACK feedback is performed for any HARQ process.

[0118] Another predetermined method is: perform HARQ-ACK feedback for all HARQ processes. It is understandable that before the UE obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, HARQ-ACK feedback is performed for any HARQ process. For this predetermined method, in order to avoid the UE performing HARQ-ACK feedback for the number of HARQ processes that exceeds the UE capability support for HARQ-ACK feedback, before the UE obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, the base station needs to avoid scheduling the number of HARQ processes that exceeds the UE capability support for HARQ-ACK feedback during scheduling.

[0119] Another predetermined method is to perform HARQ-ACK feedback on the HARQ process that meets the preset condition. It is understandable that before the UE obtains the dedicated configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, HARQ-ACK feedback is only performed on specific HARQ processes.

[0120] Further, HARQ-ACK feedback is performed on the HARQ process that meets the preset conditions, including any one or more of the following:

[0121] Perform HARQ-ACK feedback for the N HARQ processes with the smallest numbers;

[0122] Perform HARQ-ACK feedback for the N HARQ processes with the largest numbers;

[0123] Performing HARQ-ACK feedback for the HARQ process whose HARQ process number is a preset value;

[0124] Wherein, N is a natural number, and the preset value is all 0 or all 1.

[0125] For example, the UE may perform HARQ-ACK feedback only for one (N=1) or two (N=2) processes with the smallest number; or perform HARQ-ACK feedback only for one or two processes with the largest number.

[0126] For another example, if the HARQ process number indicated by the scheduling information is all '0', HARQ-ACK feedback is performed; when the indicated HARQ process number is not all '0', HARQ-ACK feedback is not performed.

[0127] For example, if the scheduling information is DCI format 1_0, HARQ-ACK feedback is performed only when the indicated HARQ process number is '0000'; when the indicated HARQ process number is not '0000', HARQ-ACK feedback is not performed.

[0128] If the scheduling information is in DCI format 1_1, HARQ-ACK feedback is performed only when the indicated HARQ process number is '00000'; when the indicated HARQ process number is not '00000', HARQ-ACK feedback is not performed.

[0129] For another example, if the HARQ process number indicated by the scheduling information is all '1', HARQ-ACK feedback is performed; when the indicated HARQ process number is not all '1', HARQ-ACK feedback is not performed.

[0130] If the scheduling information is DCI format 1_0, HARQ-ACK feedback is performed only when the indicated HARQ process number is '1111'; when the indicated HARQ process number is not '1111', HARQ-ACK feedback is not performed;

[0131] If the scheduling information is DCI format 1_1, HARQ-ACK feedback is performed only when the indicated HARQ process number is '11111'; when the indicated HARQ process number is not '11111', HARQ-ACK feedback is not performed.

[0132] Based on the above embodiment, the HARQ-ACK feedback method may further include the following steps:

[0133] For the HARQ process determined to enable HARQ-ACK feedback, after HARQ-ACK is fed back for the most recent physical downlink shared channel PDSCH transmission of the HARQ process, the scheduling information for scheduling the PDSCH corresponding to the HARQ process is received. In other words, for the HARQ process determined to enable HARQ-ACK feedback based on the above method, the base station can send scheduling information for scheduling the PDSCH transmission of the process only after HARQ-ACK is fed back for the most recent PDSCH transmission of the process.

[0134] Alternatively, the method may further include:

[0135] For the HARQ process determined to have HARQ-ACK feedback disabled, the scheduling information for scheduling the PDSCH corresponding to the HARQ process is received after T time has passed since the most recent PDSCH transmission for the HARQ process; wherein T is the processing time corresponding to the PDSCH. In other words, for the HARQ process determined to have HARQ-ACK feedback disabled based on the above method, the base station needs to send scheduling information for scheduling the PDSCH transmission for the process after T time has passed since the most recent PDSCH transmission for the process, wherein T is the processing time corresponding to the PDSCH.

[0136] Figure 2The second flow chart of the HARQ-ACK feedback method provided in the embodiment of the present application is as follows: Figure 2 As shown, the method can be applied to a network device such as a base station, and the method comprises at least the following steps:

[0137] Step 200: Receive HARQ-ACK feedback information sent by the UE;

[0138] The HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0139] Each embodiment of the present application provides a solution for how to provide HARQ-ACK feedback for each HARQ process before the UE obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration. Specifically, before sending the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration to the UE, the HARQ-ACK feedback information sent by the UE is received in a predetermined manner. The predetermined manner may be predefined in the standard. The base station receives the HARQ-ACK feedback information sent by the UE to ensure that the base station and the terminal device have a consistent understanding of important transmission information.

[0140] Optionally, the predetermined method includes any one of the following:

[0141] No HARQ-ACK feedback is performed for any HARQ process;

[0142] HARQ-ACK feedback is provided for all HARQ processes;

[0143] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0144] Optionally, the preset conditions include any one or more of the following:

[0145] N HARQ processes with the smallest number;

[0146] The N HARQ processes with the largest number;

[0147] The HARQ process number is a HARQ process with a preset value;

[0148] Wherein, N is a natural number, and the preset value is all 0 or all 1.

[0149] The contents related to the predetermined method and preset conditions provided in the embodiments of the present application can be found in the above method embodiments and will not be repeated here.

[0150] The technical solution of the embodiments of the present application is further described below through several specific examples.

[0151] Example 1: Before the terminal device obtains the dedicated configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, HARQ-ACK feedback is performed only for the HARQ process whose HARQ process number indication field is all '0'.

[0152] Case 1: The network device (e.g., base station) schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_0. The HARQ process number indication field contained in DCI format 1_0 is '0000'. The terminal device then performs HARQ-ACK feedback on the PDSCH transmission. The base station needs to schedule the next PDSCH transmission of the process after receiving the corresponding HARQ-ACK feedback information.

[0153] Case 2: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_1. The HARQ process number indication field contained in DCI format 1_1 is '00000'. The terminal device then performs HARQ-ACK feedback for the PDSCH transmission. The base station needs to schedule the next PDSCH transmission of the process after receiving the corresponding HARQ-ACK feedback information.

[0154] Case 3: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_0. The HARQ process number indication field contained in DCI format 1_0 is '0110', then the terminal device does not perform HARQ-ACK feedback; the base station needs to send the scheduling information for scheduling the PDSCH transmission of this process again after T time after sending the PDSCH transmission, where T is the processing time corresponding to the PDSCH.

[0155] Case 4: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_1. The HARQ process number indication field contained in DCI format 1_1 is '00011', then the terminal device does not perform HARQ-ACK feedback; the base station needs to send the scheduling information for scheduling the PDSCH transmission of this process again after T time after sending the PDSCH transmission, where T is the processing time corresponding to the PDSCH.

[0156] Example 2: Before the terminal device obtains the dedicated configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, HARQ-ACK feedback is performed only for the HARQ process whose HARQ process number indication field is all '1'.

[0157] Case 1: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_0. The HARQ process number indication field contained in DCI format 1_0 is '1111', and the terminal device performs HARQ-ACK feedback for the PDSCH transmission. The base station needs to schedule the next PDSCH transmission of the process after receiving the corresponding HARQ-ACK feedback information.

[0158] Case 2: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_1. The HARQ process number indication field contained in DCI format 1_1 is '11111'. The terminal device performs HARQ-ACK feedback for the PDSCH transmission. The base station needs to schedule the next PDSCH transmission of the process after receiving the corresponding HARQ-ACK feedback information.

[0159] Case 3: The base station schedules a PDSCH transmission scrambled by C-RNTI through DCI format 1_0, and the HARQ process number indication field contained in DCI format 1_0 is '0000', then the terminal device does not perform HARQ-ACK feedback; the base station needs to send scheduling information for scheduling the PDSCH transmission of the process again after T time after sending the PDSCH transmission, where T is the processing time corresponding to the PDSCH;

[0160] Case 4: The base station schedules a PDSCH transmission encrypted by C-RNTI through DCI format 1_1. The HARQ process number indication field contained in DCI format 1_1 is '00000', then the terminal device does not perform HARQ-ACK feedback; the base station needs to send the scheduling information for scheduling the PDSCH transmission of this process again after T time after sending the PDSCH transmission, where T is the processing time corresponding to the PDSCH.

[0161] The embodiment of the present application provides a solution for a satellite Internet system, in which, before the terminal device obtains the exclusive configuration information of whether each HARQ process is configured to enable HARQ-ACK feedback, only a specific HARQ process is provided with HARQ-ACK feedback, so as to ensure that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying the terminal implementation while ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPS PDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency.

[0162] Figure 3 The third flow chart of the HARQ-ACK feedback method provided in the embodiment of the present application is as follows: Figure 3 As shown, the method can be applied to a terminal device UE, and the method at least includes the following steps:

[0163] Step 300: receiving activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH;

[0164] Step 310: Perform HARQ-ACK feedback on the activation DCI.

[0165] Specifically, the UE receives an activation DCI corresponding to the semi-persistent scheduling SPS PDSCH sent by a network device such as a base station, and then the UE performs HARQ-ACK feedback for the activation DCI corresponding to the SPS PDSCH.

[0166] Optionally, the UE performing HARQ-ACK feedback on the activation DCI may include:

[0167] When the HARQ process corresponding to the SPS PDSCH does not enable HARQ-ACK feedback, performing HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0168] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is not performed on the activation downlink control information DCI corresponding to the SPS PDSCH, but HARQ-ACK feedback is performed on the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH.

[0169] Whether the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK feedback is determined based on the dedicated configuration information. Before the UE obtains the dedicated configuration information of whether the HARQ process is enabled for HARQ-ACK feedback, it can also determine whether the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK feedback based on a predetermined method. If the HARQ process corresponding to the SPS PDSCH does not enable HARQ-ACK, the UE does not need to perform HARQ-ACK feedback on the SPS PDSCH; if the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK, the UE needs to perform HARQ-ACK feedback on the SPS PDSCH.

[0170] Specifically, if the HARQ process corresponding to the SPS PDSCH is not enabled for HARQ-ACK feedback, HARQ-ACK feedback is performed for the activation DCI corresponding to the SPS PDSCH; if the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK feedback, HARQ-ACK feedback is performed for the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH, and no HARQ-ACK feedback is performed for the activation DCI. Performing HARQ-ACK feedback for activation DCI can ensure that the base station and the terminal have a consistent understanding of whether the SPS PDSCH transmission is activated. If the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK feedback, the terminal performs HARQ-ACK feedback for the PDSCH scheduled by the activation DCI, and does not perform HARQ-ACK feedback for the activation DCI. At this time, the base station can determine whether the terminal has received the activation DCI through the HARQ-ACK feedback corresponding to the PDSCH scheduled by the activation DCI, and can also ensure that the base station and the terminal have a consistent understanding of whether the SPS PDSCH transmission is activated.

[0171] Furthermore, the method embodiment also includes any one or more of the following:

[0172] The UE determines the time slot where the HARQ-ACK feedback is located based on the end position of the PDCCH carrying the activation DCI and the HARQ-ACK feedback timing; or

[0173] The UE determines the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDCCH carrying the activation DCI is located and the HARQ-ACK feedback timing; or

[0174] The HARQ-ACK feedback of the activation DCI corresponding to the SPS PDSCH and the HARQ-ACK feedback corresponding to the dynamic PDSCH are transmitted on different physical uplink control channels PUCCH. In other words, the HARQ-ACK feedback of the activation DCI corresponding to the SPS PDSCH cannot be transmitted on the same PUCCH as the HARQ-ACK feedback corresponding to the PDSCH to avoid affecting the determination of the HARQ-ACK codebook. Or

[0175] After a preset number (e.g., N) of symbols after the last symbol of the PDCCH carrying the activation DCI corresponding to the SPS PDSCH, the HARQ-ACK information corresponding to the activation DCI is fed back. Wherein, when the subcarrier spacing between the PDCCH and the PUCCH carrying the HARQ-ACK is 120kHz, the N value is 25. Since HARQ-ACK feedback is performed for the activation DCI, it is necessary to ensure that the interval between the last symbol of the PDCCH for activating the DCI and the first symbol of the PUCCH carrying the HARQ-ACK is greater than the processing time for the terminal to parse the activation DCI and prepare for HARQ-ACK transmission.

[0176] Optionally, the UE performing HARQ-ACK feedback on the activation DCI may include:

[0177] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

[0178] Further, in this embodiment, the HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback information corresponding to the activated DCI scheduled PDSCH are transmitted on the same PUCCH resource. That is to say, if the HARQ process corresponding to the SPS PDSCH is enabled with HARQ-ACK feedback, the HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback corresponding to the activated DCI scheduled PDSCH are transmitted on the same PUCCH resource.

[0179] Furthermore, if the HARQ process corresponding to the SPS PDSCH does not enable HARQ-ACK feedback, HARQ-ACK feedback is not performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and only HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

[0180] Furthermore, the method embodiment also includes any one or more of the following:

[0181] The UE determines the time slot where the HARQ-ACK feedback is located based on the end position of the PDSCH carrying the activation DCI scheduling and the HARQ-ACK feedback timing.

[0182] The UE determines the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDSCH carrying the activation DCI scheduling is located and the HARQ-ACK feedback timing.

[0183] The HARQ-ACK feedback information of the activated DCI is located before the feedback information of the corresponding PDSCH.

[0184] The HARQ-ACK feedback information of the activated DCI is located after the feedback information of the corresponding PDSCH.

[0185] Based on the above embodiments, the method further includes:

[0186] In the case where the SPS PDSCH corresponds to multiple HARQ processes, the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is enabled based on the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH; or the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not enabled based on the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH. That is to say, if the SPS PDSCH corresponds to multiple HARQ processes, the HARQ-ACK feedback of the HARQ process corresponding to the SPS PDSCH is not enabled, which refers to the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH configuration (for example, the HARQ process corresponding to the first PDSCH transmission scheduled by activating DCI) is not enabled; the HARQ-ACK feedback of the HARQ process corresponding to the SPS PDSCH is enabled, which refers to the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH configuration (for example, the HARQ process corresponding to the first PDSCH transmission scheduled by activating DCI) is enabled.

[0187] Specifically, when the SPS PDSCH corresponds to multiple HARQ processes and the specific HARQ process corresponding to the SPS PDSCH does not enable HARQ-ACK feedback, HARQ-ACK feedback is performed on the activation DCI corresponding to the SPS PDSCH; or

[0188] When the SPS PDSCH corresponds to multiple HARQ processes and HARQ-ACK feedback is enabled for a specific HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed for the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is not performed for the activation DCI; or

[0189] When the SPS PDSCH corresponds to multiple HARQ processes and HARQ-ACK feedback is enabled for a specific HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH corresponding to the SPS PDSCH that activates DCI scheduling, and HARQ-ACK feedback is performed on the DCI corresponding to the SPS PDSCH.

[0190] Further, when the UE detects the activation DCI corresponding to the SPS PDSCH, it feeds back ACK thereto; when the UE does not detect the activation DCI corresponding to the SPS PDSCH, it does not perform HARQ-ACK feedback.

[0191] Optionally, the embodiment may further include:

[0192] Based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information, the PUCCH resources used are determined, and HARQ-ACK feedback is performed on the activation DCI. That is, when HARQ-ACK feedback is performed on the activation DCI corresponding to the SPS PDSCH, the PUCCH resources used are determined based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information.

[0193] Figure 4 A fourth flow chart of the HARQ-ACK feedback method provided in an embodiment of the present application is as follows: Figure 4 As shown, the method can be applied to a network device such as a base station, and the method comprises at least the following steps:

[0194] Step 400: Send activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH to the terminal device;

[0195] Step 410: Receive HARQ-ACK feedback from the terminal device in response to the activated DCI.

[0196] Specifically, the base station sends an activation DCI corresponding to the semi-persistent scheduling SPS PDSCH to the UE to activate the corresponding PDSCH. After receiving the activation DCI, the UE performs HARQ-ACK feedback for the activation DCI corresponding to the SPS PDSCH, and the base station receives the HARQ-ACK feedback sent by the UE.

[0197] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI includes:

[0198] In a case where the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, receiving HARQ-ACK feedback performed by the terminal device on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0199] In a case where HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received.

[0200] Specifically, if the HARQ process corresponding to the SPS PDSCH is not enabled for HARQ-ACK feedback, HARQ-ACK feedback is performed for the activation DCI corresponding to the SPS PDSCH; if the HARQ process corresponding to the SPS PDSCH is enabled for HARQ-ACK feedback, HARQ-ACK feedback is performed for the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is not performed for the activation DCI.

[0201] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI may include:

[0202] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received, and the HARQ-ACK feedback performed by the terminal device on the DCI corresponding to the SPS PDSCH is received.

[0203] On the basis of the above embodiments, in the case where the SPS PDSCH corresponds to multiple HARQ processes, whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is turned on is determined based on whether the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH is turned on; or whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not turned on is determined based on whether the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH is not turned on. In other words, if the SPS PDSCH corresponds to multiple HARQ processes, the HARQ-ACK feedback of the HARQ process corresponding to the SPS PDSCH is not turned on, which means that the HARQ-ACK feedback of the specific HARQ process corresponding to the SPS PDSCH configuration (for example, the HARQ process corresponding to the first PDSCH transmission scheduled by activating DCI) is not turned on.

[0204] The technical solution of the embodiments of the present application is further described below through several specific examples.

[0205] Example 3: Assume that the terminal device is configured with a subcarrier spacing of 120 kHz, the period of SPS PDSCH is 10 ms, and the SPS PDSCH transmission corresponds to one HARQ process.

[0206] Case 1: HARQ-ACK feedback is not enabled for the HARQ process corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed only for the activation DCI corresponding to the SPS PDSCH.

[0207] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, an ACK is fed back to the activation DCI in time slot n+6; when the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0208] The base station cannot instruct the HARQ-ACK feedback of other dynamic PDSCHs to be transmitted in time slot n+6.

[0209] The base station shall indicate that the time interval between the PDCCH and PUCCH corresponding to the activation DCI and the corresponding HARQ-ACK feedback information is greater than the time length of 25 OFDM symbols.

[0210] Case 2: The HARQ process corresponding to the SPS PDSCH is enabled with HARQ-ACK feedback, no HARQ-ACK feedback is performed on the activation DCI corresponding to the SPS PDSCH, and feedback is performed on the PDSCH scheduled by the activation DCI.

[0211] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, then when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, then the PDSCH scheduled for the first time by the activation DCI is fed back in time slot n+7. If the terminal device correctly demodulates the PDSCH, ACK is fed back; if the PDSCH is not demodulated correctly, NACK is fed back. When the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0212] Case 3: The HARQ process corresponding to the SPS PDSCH is enabled with HARQ-ACK feedback, and feedback is provided for both the activation DCI corresponding to the SPS PDSCH and the PDSCH scheduled by the activation DCI.

[0213] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, then when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, the activation DCI and the first scheduled PDSCH are fed back in time slot n+7. If the terminal device receives the activation DCI, 2 bits of information are fed back, the first bit corresponds to the feedback information ACK of the activation DCI, and the second bit corresponds to the demodulation result of the PDSCH. If the terminal device demodulates the PDSCH correctly, ACK is fed back, and if the SPS PDSCH is not demodulated correctly, NACK is fed back. When the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0214] Example 4: Assume that the terminal device is configured with a subcarrier spacing of 120kHz, the period of SPS PDSCH is 5ms, and the SPS PDSCH transmission corresponds to two HARQ processes, namely HARQ process #0 and HARQ process #1. The specific process is the HARQ process corresponding to the first PDSCH scheduled by the activated DCI, that is, HARQ process #0.

[0215] Case 1: HARQ process #0 is not enabled for HARQ-ACK feedback, and HARQ process #1 is enabled or not enabled for HARQ feedback; HARQ-ACK feedback is performed only for the activation DCI corresponding to the SPS PDSCH.

[0216] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, an ACK is fed back to the activation DCI in time slot n+6; when the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0217] The base station cannot instruct the HARQ-ACK feedback of other dynamic PDSCHs to be transmitted in time slot n+6.

[0218] The base station shall indicate that the time interval between the PDCCH and PUCCH corresponding to the activation DCI and the corresponding HARQ-ACK feedback information is greater than the time length of 25 OFDM symbols.

[0219] Case 2: HARQ process #0 is enabled with HARQ-ACK feedback, HARQ process #1 is enabled or not enabled with HARQ feedback, no HARQ-ACK feedback is performed for the activation DCI corresponding to the SPS PDSCH, and feedback is performed for the PDSCH scheduled by the activation DCI.

[0220] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, then when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, SPS PDSCH is fed back in time slot n+7. If the terminal device correctly demodulates the SPS PDSCH, ACK is fed back; if the SPS PDSCH is not demodulated correctly, NACK is fed back. When the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0221] Case 3: HARQ process #0 is enabled for HARQ-ACK feedback, and HARQ process #1 is enabled or disabled for HARQ feedback, and both the activation DCI corresponding to the SPS PDSCH and the PDSCH scheduled by the activation DCI are fed back.

[0222] If the base station sends an activation DCI for SPS PDSCH in time slot n and schedules the first PDSCH transmission in time slot n+1, then when the terminal device detects the activation DCI in time slot n, if the DCI indicates that the K1 value is 5, the activation DCI and the first scheduled PDSCH are fed back in time slot n+7. If the terminal device receives the activation DCI, 2 bits of information are fed back, the first bit corresponds to the feedback information ACK of the activation DCI, and the second bit corresponds to the demodulation result of the PDSCH. If the terminal device correctly demodulates the SPS PDSCH, ACK is fed back, and if the SPS PDSCH is not demodulated correctly, NACK is fed back. When the terminal device does not detect the activation DCI in time slot n, no information is fed back.

[0223] The embodiment of the present application provides a solution for performing HARQ-ACK feedback on activated DCI for a satellite Internet system, ensuring that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying terminal implementation and ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPS PDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency.

[0224] Figure 5 One of the terminal device structure diagrams provided in the embodiment of the present application is as follows: Figure 5 As shown, the terminal device UE500 includes a memory 502, a transceiver 503 and a processor 501; wherein the processor 501 and the memory 502 may also be arranged physically separately.

[0225] The memory 502 is used to store computer programs; the transceiver 503 is used to send and receive data under the control of the processor 501.

[0226] Specifically, the transceiver 503 is used to receive and send data under the control of the processor 501 .

[0227] Among them, Figure 5 In the embodiment, the bus interface 504 may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 501 and the memory represented by the memory 502. The bus interface 504 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 503 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes wireless channels, wired channels, optical cables, and other transmission media. For different terminal devices, the user interface 505 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0228] The processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 can store data used by the processor 501 when performing operations.

[0229] Optionally, the processor 501 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0230] The processor 501 calls the computer program stored in the memory 502 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0231] Before obtaining the dedicated configuration information of whether to enable hybrid automatic repeat request acknowledgment HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration, HARQ-ACK feedback is performed based on a predetermined method.

[0232] Optionally, the performing HARQ-ACK feedback based on a predetermined manner includes any one of the following:

[0233] No HARQ-ACK feedback is performed for any HARQ process;

[0234] HARQ-ACK feedback is provided for all HARQ processes;

[0235] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0236] Optionally, the performing HARQ-ACK feedback on the HARQ process that meets the preset condition includes any one or more of the following:

[0237] Perform HARQ-ACK feedback for the N HARQ processes with the smallest numbers;

[0238] Perform HARQ-ACK feedback for the N HARQ processes with the largest numbers;

[0239] Performing HARQ-ACK feedback for the HARQ process whose HARQ process number is a preset value;

[0240] Wherein, N is a natural number.

[0241] Optionally, the preset value is all 0s or all 1s.

[0242] Optionally, the operation further includes:

[0243] For a HARQ process determined to enable HARQ-ACK feedback, after feeding back HARQ-ACK for the most recent physical downlink shared channel PDSCH transmission of the HARQ process, receiving scheduling information for scheduling the PDSCH corresponding to the HARQ process; or

[0244] For a HARQ process that is determined to have HARQ-ACK feedback not enabled, scheduling information for scheduling the PDSCH corresponding to the HARQ process is received T time after the most recent PDSCH transmission for the HARQ process; wherein T is the processing time corresponding to the PDSCH.

[0245] Figure 6 The second schematic diagram of the terminal device structure provided in the embodiment of the present application is as follows: Figure 6 As shown, the terminal device UE600 includes a memory 602, a transceiver 603 and a processor 601; wherein the processor 601 and the memory 602 may also be arranged physically separately.

[0246] The memory 602 is used to store computer programs; the transceiver 603 is used to send and receive data under the control of the processor 601.

[0247] Specifically, the transceiver 603 is used to receive and send data under the control of the processor 601 .

[0248] Among them, Figure 6In the embodiment, the bus interface 604 may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 601 and the memory represented by the memory 602. The bus interface 604 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 603 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes wireless channels, wired channels, optical cables, and other transmission media. For different terminal devices, the user interface 605 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0249] The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 can store data used by the processor 601 when performing operations.

[0250] Optionally, the processor 601 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0251] The processor 601 calls the computer program stored in the memory 602 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0252] Receive activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH;

[0253] Perform HARQ-ACK feedback on the activation DCI.

[0254] Optionally, the performing HARQ-ACK feedback on the activation DCI includes:

[0255] When the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, performing HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0256] In the case where HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is not performed on the activation downlink control information DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the PDSCH scheduled by the activation DCI corresponding to the SPS PDSCH.

[0257] Optionally, the operation further includes any one or more of the following:

[0258] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDCCH carrying the activation DCI and the HARQ-ACK feedback timing;

[0259] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDCCH carrying the activation DCI is located and the HARQ-ACK feedback timing;

[0260] The HARQ-ACK feedback of the activated DCI corresponding to the SPS PDSCH and the HARQ-ACK feedback corresponding to the dynamic PDSCH are transmitted on different physical uplink control channels PUCCH;

[0261] After a preset number of symbols after the last symbol of the PDCCH carrying the activation DCI corresponding to the SPS PDSCH, HARQ-ACK information corresponding to the activation DCI is fed back.

[0262] Optionally, the performing HARQ-ACK feedback on the activation DCI includes:

[0263] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

[0264] Optionally, the operation further includes:

[0265] The HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the activated DCI are transmitted on the same PUCCH resource.

[0266] Optionally, the operation further includes any one or more of the following:

[0267] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDSCH carrying the activation DCI scheduling and the HARQ-ACK feedback timing;

[0268] Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDSCH carrying the activated DCI scheduling is located and the HARQ-ACK feedback timing;

[0269] The HARQ-ACK feedback information of the activated DCI is located before the feedback information of the corresponding PDSCH;

[0270] The HARQ-ACK feedback information of the activated DCI is located after the feedback information of the corresponding PDSCH.

[0271] Optionally, the operation further includes:

[0272] In the case that SPS PDSCH corresponds to multiple HARQ processes, whether HARQ-ACK feedback is enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is enabled for the specific HARQ process corresponding to the SPS PDSCH; or whether HARQ-ACK feedback is not enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is not enabled for the specific HARQ process corresponding to the SPS PDSCH.

[0273] Optionally, the operation further includes:

[0274] The PUCCH resource used is determined based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information, and HARQ-ACK feedback is performed on the activation DCI.

[0275] Optionally, the performing HARQ-ACK feedback on activation downlink control information DCI corresponding to the SPS PDSCH includes:

[0276] When the activation DCI corresponding to the SPS PDSCH is detected, ACK is fed back for the activation DCI.

[0277] The terminal device provided in the embodiment of the present application, for the satellite Internet system, before the terminal device obtains the exclusive configuration information of whether to enable HARQ-ACK feedback for each HARQ process configuration, only performs HARQ-ACK feedback on a specific HARQ process, ensuring that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying the terminal implementation while ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPSPDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency.

[0278] Figure 7 One of the schematic diagrams of the network device structure provided in the embodiment of the present application is as follows: Figure 7As shown, the network device 700 includes a memory 702, a transceiver 703, and a processor 701. The processor 701 and the memory 702 may also be physically arranged separately.

[0279] The memory 702 is used to store computer programs; the transceiver 703 is used to send and receive data under the control of the processor 701.

[0280] Specifically, in Figure 7 In the embodiment, the bus interface 704 may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 701 and the memory represented by the memory 702. The bus interface 704 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 703 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 when performing operations.

[0281] The processor 701 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0282] The processor 701 calls the computer program stored in the memory 702 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0283] Receive HARQ-ACK feedback information sent by a terminal device; wherein the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0284] Optionally, the predetermined method includes any one of the following:

[0285] No HARQ-ACK feedback is performed for any HARQ process;

[0286] HARQ-ACK feedback is provided for all HARQ processes;

[0287] Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

[0288] Optionally, the preset conditions include any one or more of the following:

[0289] N HARQ processes with the smallest number;

[0290] The N HARQ processes with the largest number;

[0291] The HARQ process number is a HARQ process with a preset value;

[0292] Wherein, N is a natural number.

[0293] Optionally, the preset value is all 0s or all 1s.

[0294] Figure 8 The second schematic diagram of the network device structure provided in the embodiment of the present application is as follows: Figure 8 As shown, the network device 800 includes a memory 802, a transceiver 803, and a processor 801. The processor 801 and the memory 802 may also be physically arranged separately.

[0295] The memory 802 is used to store computer programs; the transceiver 803 is used to send and receive data under the control of the processor 801.

[0296] Specifically, in Figure 8 In the embodiment, the bus interface 804 may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 801 and the memory represented by the memory 802. The bus interface 804 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 803 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 may store data used by the processor 801 when performing operations.

[0297] The processor 801 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0298] The processor 801 calls the computer program stored in the memory 802 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0299] Send activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH to the terminal device;

[0300] Receive HARQ-ACK feedback from the terminal device in response to the activated DCI.

[0301] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI includes:

[0302] In a case where the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, receiving HARQ-ACK feedback performed by the terminal device on the activation downlink control information DCI corresponding to the SPS PDSCH; or

[0303] In a case where HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received.

[0304] Optionally, the receiving, by the terminal device, HARQ-ACK feedback for the activation DCI includes:

[0305] When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received, and the HARQ-ACK feedback performed by the terminal device on the DCI corresponding to the SPS PDSCH is received.

[0306] Optionally, the operation further includes:

[0307] In the case that SPS PDSCH corresponds to multiple HARQ processes, whether HARQ-ACK feedback is enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is enabled for the specific HARQ process corresponding to the SPS PDSCH; or whether HARQ-ACK feedback is not enabled for the HARQ process of the SPS PDSCH is determined based on whether HARQ-ACK feedback is not enabled for the specific HARQ process corresponding to the SPS PDSCH.

[0308] The network device provided in the embodiment of the present application provides a solution for HARQ-ACK feedback of activated DCI for the satellite Internet system, which ensures that the base station and the terminal device have a consistent understanding of important transmission information, thereby smoothly establishing transmission, simplifying the terminal implementation while ensuring the transmission performance of the system. On the other hand, it ensures that the base station and the terminal device have a consistent understanding of whether the SPSPDSCH transmission is activated, thereby avoiding resource waste and improving transmission efficiency.

[0309] It should be noted here that the above-mentioned terminal device and network device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0310] Fig. 9 One of the structural diagrams of the HARQ-ACK feedback device provided in the embodiment of the present application is as follows Fig. 9 As shown, the device can be applied to a terminal device UE, including:

[0311] The first processing module 901 is configured to perform HARQ-ACK feedback based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0312] Fig.10 The second structural diagram of the HARQ-ACK feedback device provided in the embodiment of the present application is as follows: Fig.10 As shown, the device can be applied to a terminal device UE, including:

[0313] The first receiving module 1001 is configured to receive activation downlink control information DCI corresponding to a semi-persistent scheduling SPS PDSCH;

[0314] The feedback module 1002 is configured to perform HARQ-ACK feedback on the activation DCI.

[0315] Fig.11 The third structural diagram of the HARQ-ACK feedback device provided in the embodiment of the present application is as follows: Fig.11As shown, the device can be applied to a network device such as a gNB, including:

[0316] The second processing module 1101 is used to receive HARQ-ACK feedback information sent by the terminal device; wherein, the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining the exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration.

[0317] Fig.12 A fourth structural diagram of a HARQ-ACK feedback device provided in an embodiment of the present application is as follows: Fig.12 As shown, the device can be applied to a network device such as a gNB, including:

[0318] The sending module 1201 is used to send activation downlink control information DCI corresponding to the semi-persistent scheduling SPS PDSCH to the terminal device;

[0319] The second receiving module 1202 is used to receive the HARQ-ACK feedback of the terminal device to the activated DCI.

[0320] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0321] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0322] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0323] It should be noted here that the above-mentioned device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0324] On the other hand, an embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the HARQ-ACK feedback method provided in the above embodiments.

[0325] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0326] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0327] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0328] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0329] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0330] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A HARQ-ACK feedback method, applied to a terminal device, characterized in that: include: Before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration, performing HARQ-ACK feedback based on a predetermined method; The performing HARQ-ACK feedback based on a predetermined manner includes any one of the following: No HARQ-ACK feedback is performed for all HARQ processes; or Perform HARQ-ACK feedback for all HARQ processes; or Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

2. The HARQ-ACK feedback method according to claim 1, characterized in that: The performing HARQ-ACK feedback on the HARQ process that meets the preset condition includes any one or more of the following: Performing HARQ-ACK feedback for the N HARQ processes with the smallest numbers; or Perform HARQ-ACK feedback for the N HARQ processes with the largest numbers; or Performing HARQ-ACK feedback for the HARQ process whose HARQ process number is a preset value; Wherein, N is a natural number.

3. The HARQ-ACK feedback method according to claim 2, characterized in that: The preset value is all 0 or all 1.

4. The HARQ-ACK feedback method according to any one of claims 1 to 3, characterized in that: The method further comprises: For a HARQ process determined to enable HARQ-ACK feedback, after feeding back HARQ-ACK for the most recent physical downlink shared channel PDSCH transmission of the HARQ process, receiving scheduling information for scheduling a PDSCH corresponding to the HARQ process; or For a HARQ process determined to have HARQ-ACK feedback not enabled, after T time after the most recent PDSCH transmission for the HARQ process, scheduling information for scheduling the PDSCH corresponding to the HARQ process is received; wherein T is the processing time corresponding to the PDSCH.

5. A HARQ-ACK feedback method, applied to a terminal device, characterized in that: include: Receive activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH; Performing HARQ-ACK feedback on the activation DCI; The performing HARQ-ACK feedback on the activation DCI includes: Before obtaining the dedicated configuration information of whether the HARQ process is enabled for HARQ-ACK feedback, determining whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled for HARQ-ACK feedback based on a predetermined method; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

6. The HARQ-ACK feedback method according to claim 5, characterized in that: The performing HARQ-ACK feedback on the activation DCI further includes: When it is determined that the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, perform HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH; or When it is determined that the HARQ process corresponding to the SPS PDSCH enables HARQ-ACK feedback, HARQ-ACK feedback is not performed on the activated downlink control information DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH.

7. The HARQ-ACK feedback method according to claim 6, characterized in that: The method further comprises any one or more of the following: Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDCCH carrying the activation DCI and the HARQ-ACK feedback timing; or Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDCCH carrying the activation DCI is located and the HARQ-ACK feedback timing; or The HARQ-ACK feedback of the activated DCI corresponding to the SPS PDSCH and the HARQ-ACK feedback corresponding to the dynamic PDSCH are transmitted on different physical uplink control channels PUCCH; or After a preset number of symbols after the last symbol of the PDCCH carrying the activation DCI corresponding to the SPS PDSCH, HARQ-ACK information corresponding to the activation DCI is fed back.

8. The HARQ-ACK feedback method according to claim 5, characterized in that: The performing HARQ-ACK feedback on the activation DCI includes: When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

9. The HARQ-ACK feedback method according to claim 8, characterized in that: The method further comprises: The HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the activated DCI are transmitted on the same PUCCH resource.

10. The HARQ-ACK feedback method according to claim 8, characterized in that: The method further comprises any one or more of the following: Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDSCH carrying the activation DCI scheduling and the HARQ-ACK feedback timing; or Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDSCH carrying the activated DCI scheduling is located and the HARQ-ACK feedback timing; or The HARQ-ACK feedback information of the activated DCI is located before the feedback information of the corresponding PDSCH; or The HARQ-ACK feedback information of the activated DCI is located after the feedback information of the corresponding PDSCH.

11. The HARQ-ACK feedback method according to claim 5, 6 or 8, characterized in that: The method further comprises: In the case that the SPS PDSCH corresponds to multiple HARQ processes, whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH turning on the HARQ-ACK feedback; or whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH not turning on the HARQ-ACK feedback.

12. The HARQ-ACK feedback method according to claim 6 or 8, characterized in that: The method further comprises: The PUCCH resource used is determined based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information, and HARQ-ACK feedback is performed on the activation DCI.

13. The HARQ-ACK feedback method according to claim 6 or 8, characterized in that: The performing HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH includes: When the activation DCI corresponding to the SPS PDSCH is detected, ACK is fed back for the activation DCI.

14. A HARQ-ACK feedback method, applied to a network device, characterized in that: include: Receiving HARQ-ACK feedback information sent by a terminal device; wherein the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration; The reservation method includes any of the following: No HARQ-ACK feedback is performed for all HARQ processes; or Perform HARQ-ACK feedback for all HARQ processes; or Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

15. The HARQ-ACK feedback method according to claim 14, characterized in that: The preset conditions include any one or more of the following: The N HARQ processes with the smallest numbers; or The N HARQ processes with the largest number; or The HARQ process number is a preset value of the HARQ process; Wherein, N is a natural number.

16. The HARQ-ACK feedback method according to claim 15, characterized in that: The preset value is all 0 or all 1.

17. A HARQ-ACK feedback method, applied to a network device, characterized in that: include: Send activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH to the terminal device; Receiving HARQ-ACK feedback performed by the terminal device on the activation DCI; Wherein, whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled HARQ-ACK feedback is determined by the terminal device based on a predetermined method before obtaining the exclusive configuration information of whether the HARQ process is enabled HARQ-ACK feedback; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

18. The HARQ-ACK feedback method according to claim 17, characterized in that: The receiving HARQ-ACK feedback performed by the terminal device on the activation DCI includes: In a case where it is determined that the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, receiving HARQ-ACK feedback performed by the terminal device on the activation downlink control information DCI corresponding to the SPS PDSCH; or In a case where it is determined that the HARQ process corresponding to the SPS PDSCH turns on HARQ-ACK feedback, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received.

19. The HARQ-ACK feedback method according to claim 17, characterized in that: The receiving HARQ-ACK feedback performed by the terminal device on the activation DCI includes: When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received, and the HARQ-ACK feedback performed by the terminal device on the DCI corresponding to the SPS PDSCH is received.

20. The HARQ-ACK feedback method according to claim 18 or 19, characterized in that: The method further comprises: In the case that the SPS PDSCH corresponds to multiple HARQ processes, whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH turning on the HARQ-ACK feedback; or whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH not turning on the HARQ-ACK feedback.

21. A terminal device, comprising a memory, a transceiver, and a processor; characterized in that: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration, performing HARQ-ACK feedback based on a predetermined method; The performing HARQ-ACK feedback based on a predetermined manner includes any one of the following: No HARQ-ACK feedback is performed for all HARQ processes; or Perform HARQ-ACK feedback for all HARQ processes; or Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

22. The terminal device according to claim 21, characterized in that: The performing HARQ-ACK feedback on the HARQ process that meets the preset condition includes any one or more of the following: Performing HARQ-ACK feedback for the N HARQ processes with the smallest numbers; or Perform HARQ-ACK feedback for the N HARQ processes with the largest numbers; or Performing HARQ-ACK feedback for the HARQ process whose HARQ process number is a preset value; Wherein, N is a natural number.

23. The terminal device according to claim 22, characterized in that: The preset value is all 0 or all 1.

24. The terminal device according to any one of claims 21 to 23, characterized in that: The operations also include: For a HARQ process determined to enable HARQ-ACK feedback, after feeding back HARQ-ACK for the most recent physical downlink shared channel PDSCH transmission of the HARQ process, receiving scheduling information for scheduling a PDSCH corresponding to the HARQ process; or For a HARQ process determined to have HARQ-ACK feedback not enabled, after T time after the most recent PDSCH transmission for the HARQ process, scheduling information for scheduling the PDSCH corresponding to the HARQ process is received; wherein T is the processing time corresponding to the PDSCH.

25. A terminal device, comprising a memory, a transceiver, and a processor; characterized in that: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH; Performing HARQ-ACK feedback on the activation DCI; The performing HARQ-ACK feedback on the activation DCI includes: Before obtaining the dedicated configuration information of whether the HARQ process is enabled for HARQ-ACK feedback, determining whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled for HARQ-ACK feedback based on a predetermined method; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

26. The terminal device according to claim 25, characterized in that: The performing HARQ-ACK feedback on the activation DCI further includes: When it is determined that the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, perform HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH; or When it is determined that the HARQ process corresponding to the SPS PDSCH enables HARQ-ACK feedback, HARQ-ACK feedback is not performed on the activated downlink control information DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH.

27. The terminal device according to claim 26, characterized in that: The operations also include any one or more of the following: Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDCCH carrying the activation DCI and the HARQ-ACK feedback timing; or Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDCCH carrying the activation DCI is located and the HARQ-ACK feedback timing; or The HARQ-ACK feedback of the activated DCI corresponding to the SPS PDSCH and the HARQ-ACK feedback corresponding to the dynamic PDSCH are transmitted on different physical uplink control channels PUCCH; or After a preset number of symbols after the last symbol of the PDCCH carrying the activation DCI corresponding to the SPS PDSCH, HARQ-ACK information corresponding to the activation DCI is fed back.

28. The terminal device according to claim 25, characterized in that: The performing HARQ-ACK feedback on the activation DCI includes: When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, HARQ-ACK feedback is performed on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH, and HARQ-ACK feedback is performed on the activated downlink control information DCI corresponding to the SPS PDSCH.

29. The terminal device according to claim 28, characterized in that: The operations also include: The HARQ-ACK feedback information corresponding to the activated DCI and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the activated DCI are transmitted on the same PUCCH resource.

30. The terminal device according to claim 28, characterized in that: The operations also include any one or more of the following: Determine the time slot where the HARQ-ACK feedback is located based on the end position of the PDSCH carrying the activation DCI scheduling and the HARQ-ACK feedback timing; or Determine the time slot where the HARQ-ACK feedback is located based on the end position of the time slot where the PDSCH carrying the activated DCI scheduling is located and the HARQ-ACK feedback timing; or The HARQ-ACK feedback information of the activated DCI is located before the feedback information of the corresponding PDSCH; or The HARQ-ACK feedback information of the activated DCI is located after the feedback information of the corresponding PDSCH.

31. The terminal device according to claim 25, 26 or 28, characterized in that: The operations also include: In the case that the SPS PDSCH corresponds to multiple HARQ processes, whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH turning on the HARQ-ACK feedback; or whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH not turning on the HARQ-ACK feedback.

32. The terminal device according to claim 26 or 28, characterized in that: The operations also include: The PUCCH resource used is determined based on the PUCCH resource indication field information in the activation DCI or based on the high-level configuration information, and HARQ-ACK feedback is performed on the activation DCI.

33. The terminal device according to claim 26 or 28, characterized in that: The performing HARQ-ACK feedback on the activation downlink control information DCI corresponding to the SPS PDSCH includes: When the activation DCI corresponding to the SPS PDSCH is detected, ACK is fed back for the activation DCI.

34. A network device, comprising a memory, a transceiver, and a processor; characterized in that: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving HARQ-ACK feedback information sent by a terminal device; wherein the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration; The reservation method includes any of the following: No HARQ-ACK feedback is performed for all HARQ processes; or Perform HARQ-ACK feedback for all HARQ processes; or Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

35. The network device according to claim 34, characterized in that: The preset conditions include any one or more of the following: The N HARQ processes with the smallest numbers; or The N HARQ processes with the largest number; or The HARQ process number is a preset value of the HARQ process; Wherein, N is a natural number.

36. The network device according to claim 35, characterized in that The preset value is all 0 or all 1.

37. A network device, comprising a memory, a transceiver, and a processor; characterized in that: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Send activation downlink control information DCI corresponding to semi-persistent scheduling SPS PDSCH to the terminal device; Receiving HARQ-ACK feedback performed by the terminal device on the activation DCI; Wherein, whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled HARQ-ACK feedback is determined by the terminal device based on a predetermined method before obtaining the exclusive configuration information of whether the HARQ process is enabled HARQ-ACK feedback; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

38. The network device according to claim 37, characterized in that: The receiving HARQ-ACK feedback performed by the terminal device on the activation DCI includes: In a case where it is determined that the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH does not enable HARQ-ACK feedback, receiving HARQ-ACK feedback performed by the terminal device on the activation downlink control information DCI corresponding to the SPS PDSCH; or In a case where it is determined that the HARQ process corresponding to the SPS PDSCH turns on HARQ-ACK feedback, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received.

39. The network device according to claim 37, characterized in that: The receiving HARQ-ACK feedback performed by the terminal device on the activation DCI includes: When HARQ-ACK feedback is enabled in the HARQ process corresponding to the SPS PDSCH, the HARQ-ACK feedback performed by the terminal device on the PDSCH scheduled by the activated DCI corresponding to the SPS PDSCH is received, and the HARQ-ACK feedback performed by the terminal device on the DCI corresponding to the SPS PDSCH is received.

40. The network device according to claim 38 or 39, characterized in that: The operations also include: In the case that the SPS PDSCH corresponds to multiple HARQ processes, whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH turning on the HARQ-ACK feedback; or whether the HARQ-ACK feedback of the HARQ process of the SPS PDSCH is not turned on is determined based on the specific HARQ process corresponding to the SPS PDSCH not turning on the HARQ-ACK feedback.

41. A HARQ-ACK feedback device, applied to a terminal device, characterized in that: include: The first processing module is used to perform HARQ-ACK feedback based on a predetermined method before obtaining exclusive configuration information of whether to enable hybrid automatic repeat request confirmation HARQ-ACK feedback for each hybrid automatic repeat request HARQ process configuration; The performing HARQ-ACK feedback based on a predetermined manner includes any one of the following: No HARQ-ACK feedback is performed for all HARQ processes; or Perform HARQ-ACK feedback for all HARQ processes; or Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

42. A HARQ-ACK feedback device, applied to a terminal device, characterized in that: include: A first receiving module is used to receive activation downlink control information DCI corresponding to the semi-persistent scheduling SPS PDSCH; A feedback module, configured to perform HARQ-ACK feedback on the activation DCI; The performing HARQ-ACK feedback on the activation DCI includes: Before obtaining the dedicated configuration information of whether the HARQ process is enabled for HARQ-ACK feedback, determining whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled for HARQ-ACK feedback based on a predetermined method; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

43. A HARQ-ACK feedback device, applied to a network device, characterized in that: include: A second processing module is configured to receive HARQ-ACK feedback information sent by a terminal device; wherein the HARQ-ACK feedback information is sent by the terminal device based on a predetermined method before obtaining exclusive configuration information of whether each hybrid automatic repeat request HARQ process configuration turns on hybrid automatic repeat request confirmation HARQ-ACK feedback; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

44. A HARQ-ACK feedback device, applied to a network device, characterized in that: include: A sending module, used to send activation downlink control information DCI corresponding to the semi-persistent scheduling SPS PDSCH to the terminal device; A second receiving module is used to receive HARQ-ACK feedback performed by the terminal device on the activation DCI; Wherein, whether the HARQ process corresponding to the semi-persistent scheduling SPS PDSCH is enabled HARQ-ACK feedback is determined by the terminal device based on a predetermined method before obtaining the exclusive configuration information of whether the HARQ process is enabled HARQ-ACK feedback; The reservation method includes any of the following: No HARQ-ACK feedback is performed for any HARQ process; HARQ-ACK feedback is provided for all HARQ processes; Perform HARQ-ACK feedback on the HARQ process that meets the preset conditions.

45. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method described in any one of claims 1 to 4, or the method described in any one of claims 5 to 13, or the method described in any one of claims 14 to 16, or the method described in any one of claims 17 to 20.

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