Transmission processing method, device and terminal equipment

Abstract

The present invention provides a transmission processing method, apparatus and terminal equipment, and relates to the field of communication technology. The method comprises: based on the reception status of the first information, performing transmission processing of data scheduled by the first physical downlink control channel PDCCH; wherein the first information comprises: an activation command for the semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission; the first PDCCH is used to schedule the PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by the multicast semi-static radio network temporary identifier G‑CS‑RNTI. The above scheme, after receiving the first PDCCH that schedules the PDSCH common to the semi-persistent scheduling group, performs data transmission processing based on the reception status of the first information, which can avoid the situation where the terminal cannot accurately process the information during multicast or broadcast communication, thereby ensuring the accuracy of data transmission.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular to a transmission processing method, apparatus and terminal equipment. Background Art

[0002] In current fifth-generation New Radio (NR) systems, when a terminal receives a Physical Downlink Control Channel (PDCCH) message scheduling a retransmission of a Physical Downlink Share Channel (PDSCH), it merges the received information with the previously received buffered data from the associated Hybrid Automatic Repeat reQuest (HARQ) process. A current problem is that in existing unicast transmissions, the base station only sends the PDCCH scheduling SPS-PDSCH retransmissions after the terminal receives the initial Semi-Persistent Scheduling (SPS) activation command and returns a negative acknowledgement (NACK). However, in multicast or broadcast communications, some terminals may only receive the PDCCH scheduling SPS-PDSCH retransmissions but not the initial SPS activation command. In this case, the terminal will still merge the received information with the previously received buffered data from the associated HARQ process, resulting in data merging errors. Summary of the Invention

[0003] The embodiments of the present invention provide a transmission processing method, apparatus and terminal device to solve the problem that in multicast or broadcast communications, some terminals only receive the PDCCH that schedules SPS-PDSCH retransmission but do not receive the SPS activation command for the initial transmission. In this case, the terminal will still merge the received information with the data cached by the previous related HARQ process, resulting in data merging errors and the inability to ensure the accuracy of data transmission.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a transmission processing method, which is executed by a terminal device, comprising:

[0005] Perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information;

[0006] The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission;

[0007] The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI.

[0008] Optionally, when a new data indication NDI included in the first PDCCH has a value of 1, the performing transmission processing of data scheduled by the first physical downlink control channel PDCCH based on a reception condition of the first information includes:

[0009] In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

[0010] Optionally, when a new data indication NDI included in the first PDCCH has a value of 1, the performing transmission processing of data scheduled by the first physical downlink control channel PDCCH based on a reception condition of the first information includes:

[0011] In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

[0012] Optionally, when the new data indication NDI included in the first PDCCH has a value of 1, the transmission processing of data scheduled by the first physical downlink control channel PDCCH based on the reception status of the first information includes at least one of the following:

[0013] When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data;

[0014] When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

[0015] Optionally, the method further includes:

[0016] Processing downlink SPS allocation information according to the third PDCCH;

[0017] The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

[0018] Optionally, the processing of downlink SPS allocation information according to the third PDCCH includes one of the following:

[0019] If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell;

[0020] If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

[0021] Optionally, in the case of storing downlink SPS allocation information configured by the storage service cell, the method further includes:

[0022] The hybrid automatic repeat request HARQ information corresponding to the downlink SPS allocation information is stored.

[0023] An embodiment of the present invention further provides a terminal device, including a memory, a transceiver, and a processor:

[0024] 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:

[0025] Perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information;

[0026] The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission;

[0027] The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI.

[0028] Optionally, when a new data indication NDI value included in the first PDCCH is 1, the processor is configured to read a computer program in the memory and perform the following operations:

[0029] In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

[0030] Optionally, when a new data indication NDI value included in the first PDCCH is 1, the processor is configured to read a computer program in the memory and perform the following operations:

[0031] In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

[0032] Optionally, when the new data indication NDI included in the first PDCCH has a value of 1, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0033] When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data;

[0034] When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

[0035] Optionally, the processor, configured to read the computer program in the memory, further performs the following operations:

[0036] Processing downlink SPS allocation information according to the third PDCCH;

[0037] The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

[0038] Optionally, the processor is configured to read the computer program in the memory and perform one of the following operations:

[0039] If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell;

[0040] If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

[0041] Optionally, the processor, configured to read the computer program in the memory, further performs the following operations:

[0042] The hybrid automatic repeat request HARQ information corresponding to the downlink SPS allocation information is stored.

[0043] An embodiment of the present invention further provides a transmission processing device, applied to a terminal device, comprising:

[0044] A first processing unit is configured to perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception condition of the first information;

[0045] The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission;

[0046] The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI.

[0047] An embodiment of the present invention 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 above method.

[0048] The beneficial effects of the present invention are:

[0049] The above scheme, after receiving the first PDCCH that schedules the PDSCH common to the semi-persistent scheduling group, performs data transmission processing based on the reception status of the first information, which can avoid the situation where the terminal cannot accurately process information during multicast or broadcast communication, thereby ensuring the accuracy of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0051] Figure 1 A structural diagram showing a network system applicable to an embodiment of the present application;

[0052] Figure 2 A schematic diagram showing a flow chart of a transmission processing method applied to a terminal device according to an embodiment of the present application;

[0053] Figure 3 A diagram showing that the terminal receives an SPS activation indication, feeds back a NACK, and receives a PDCCH scheduling SPS group-common PDSCH-1 scrambled by the G-CS-RNTI;

[0054] Figure 4A schematic diagram showing that the terminal receives an SPS activation indication, feeds back an ACK, and receives a PDCCH scheduling SPS group-common PDSCH-1 scrambled by the G-CS-RNTI;

[0055] Figure 5 A diagram showing that the terminal did not receive an SPS activation indication but received a PDCCH scheduling SPS group-common PDSCH-1 scrambled by the G-CS-RNTI;

[0056] Figure 6 A schematic diagram showing a unit of a terminal device according to an embodiment of the present application;

[0057] Figure 7 A structural diagram showing a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0059] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, are implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or devices.

[0060] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship. In the embodiments of this application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0061] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0062] The following describes embodiments of the present application with reference to the accompanying drawings. The transmission processing method, apparatus, and terminal device provided in the embodiments of the present application can be applied to a wireless communication system. The wireless communication system can be a system using fifth-generation (5G) mobile communication technology (hereinafter referred to as a 5G system). Those skilled in the art will appreciate that the 5G NR system is only an example and not a limitation.

[0063] See also Figure 1 , Figure 1 This is a structural diagram of a network system that can be applied in the embodiment of the present application, such as Figure 1 As shown, it includes a user terminal 11 and a base station 12, wherein the user terminal 11 can be a user equipment (UE), for example, it can be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a mobile Internet device (MID) or a wearable device. It should be noted that the specific type of the user terminal 11 is not limited in the embodiment of the present application. The above-mentioned base station 12 can be a base station of 5G or later versions (for example, gNB, 5G NR NB), or a base station in other communication systems, or referred to as a node B. It should be noted that in the embodiment of the present application, only a 5G base station is taken as an example, but the specific type of the base station 12 is not limited.

[0064] First, some concepts related to the embodiments of the present invention are described as follows.

[0065] Semi-Persistent Scheduling (SPS) is a scheduling-free transmission technology for downlink, mainly used for small packet periodic service transmission, which can reduce downlink control signaling overhead. The base station activates or deactivates DL SPS transmission through a downlink control indication (DCI) scrambled by a semi-static radio network temporary identifier (CS-RNTI). In the existing fifth-generation new radio (NR) unicast technology, the base station will only send a PDCCH (CS-RNTI scrambled DCI) to schedule SPS-PDSCH retransmission when the terminal feedback NACK after receiving the SPS activation PDCCH (CS-RNTI scrambled DCI).

[0066] Regarding SPS PDSCH retransmission, the terminal performs the following steps:

[0067] 1. The terminal receives the SPS activation PDCCH, where the SPS activation PDCCH is scrambled by the CS-RNTI and the New Data Indicator (NDI) field value is 0;

[0068] 2. The terminal receives the first PDSCH indicated by the SPS activation PDCCH and feeds back a NACK based on the reception status;

[0069] 3. The base station receives a NACK and sends a PDCCH for scheduling SPS-PDSCH retransmission. The PDCCH for scheduling SPS-PDSCH retransmission is scrambled by the CS-RNTI and the NDI field value is 1.

[0070] 4. The terminal receives the retransmitted PDSCH indicated by the PDCCH, combines it with the last received PDSCH, and feeds back an ACK.

[0071] TS 38.321 describes the process by which a terminal receives a CS-RNTI-scrambled PDCCH. When the NDI value is 1 after demodulating the received PDCCH, the terminal considers the NDI of the corresponding HARQ process to be unchanged, indicating a retransmission. The terminal receives a downlink allocation indication and sends the relevant HARQ process information to the HARQ entity, merging it with the previously received cached data of the relevant HARQ process information. When the NDI in the demodulated DCI after receiving the PDCCH is 0 and indicates SPS activation, the terminal considers the NDI of the corresponding HARQ process to be flipped, indicating an initial transmission.

[0072] Multicast communication means that the base station sends data to a group of terminals. The PDCCH scheduled in a multicast manner is called the group-common PDCCH. Furthermore, the Group-common PDCCH for scheduling data is scrambled by the GC-RNTI or G-CS-RNTI (related to SPS). Note that the unicast PDCCH for scheduling data is generally scrambled by the C-RNTI or CS-RNTI (related to SPS).

[0073] In the current standard discussion, multicast SPS supports SPS activation based on group-common PDCCH. Taking into account the reliability of SPS transmission, it supports retransmission of SPS group-common PDSCH with PDCCH scrambled with G-CS-RNTI (PDSCH retransmission in multicast mode) or CS-RNTI (PDSCH retransmission in unicast mode) and NDI=1. In addition, if the base station can receive the HARQ information (ACK / NACK) of the SPS PDSCH, the SPS activation is considered successful. If the base station does not receive the SPS PDSCH HARQ (ACK / NACK), the SPS activation is considered to have failed, and the base station needs to resend the SPS activation command.

[0074] The current problem is that in multicast services / broadcast services, after the base station sends an SPS activation PDCCH (the PDCCH carries the SPS activation command), there are three situations for receiving the SPS activation PDCCH:

[0075] Case 1: The terminal receives the SPS activation PDCCH, and the PDSCH demodulation is successful, and the ACK information is fed back;

[0076] Case 2: The terminal receives the SPS activation PDCCH, and the PDSCH demodulation fails, and feedback is NACK information;

[0077] Case 3: The terminal does not receive the SPS activation PDCCH;

[0078] When the base station receives a NACK, it sends a PDCCH scrambled with G-CS-RNTI and NDI = 1 to retransmit the SPS group-common PDSCH. In case 3, the terminal only receives the PDCCH scheduling the SPS group-common PDSCH retransmission but does not receive the SPS activation PDCCH. The terminal does not know how to handle this. In this case, how the terminal handles the received SPS retransmission data requires further study.

[0079] The embodiments of the present application address the above-mentioned problems and provide a transmission processing method, apparatus, and terminal device.

[0080] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0081] like Figure 2 As shown, an embodiment of the present invention provides a transmission processing method, which is executed by a terminal device, including:

[0082] Step S201: performing transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information;

[0083] The first information includes: an activation command of a semi-persistent scheduling physical downlink shared channel (SPS PDSCH) (also referred to as an SPS activation command) or a second PDCCH for scheduling SPS PDSCH retransmission;

[0084] The first PDCCH is used to schedule a PDSCH common to a semi-persistent scheduling group (SPS Group-common), and the first PDCCH is scrambled by a groupcast semi-static radio network temporary identifier (Group-Cemi-Static-RNTI, G-CS-RNTI).

[0085] It should be noted here that the SPS activation command is carried by the PDCCH, and the PDCCH needs to be scrambled using the CS-RNTI.

[0086] It should be noted that, in an embodiment of the present application, when the terminal receives the first PDCCH, the transmission processing of the data scheduled by the first PDCCH is performed based on the reception status of a piece of information. It should be noted that, the transmission processing mentioned in the embodiment of the present application mainly refers to determining whether the data scheduled by the first PDCCH is received and / or determining whether the data transmission scheduled by the first PDCCH is new data or retransmission data.

[0087] It should be noted here that the embodiments of the present application mainly focus on how the terminal handles the retransmission of the PDSCH common to the semi-continuous scheduling group in multicast or broadcast, that is, the first PDCCH sent by the network device to the terminal indicates the retransmission scheduling of the PDSCH common to the semi-continuous scheduling group.

[0088] In the embodiment of the present application, two implementation methods for transmission processing of data scheduled by the first PDCCH are provided, and the two implementation methods are respectively described as follows.

[0089] First of all, it should be noted that both implementation method 1 and implementation method 2 mentioned below are only performed when the new data indication (NDI) contained in the first PDCCH takes a value of 1. That is to say, after receiving the first PDCCH, if the NDI value contained in the first PDCCH takes a value of 1, the terminal device adopts the following implementation method 1 or implementation method 2 for transmission processing.

[0090] Implementation method 1: Transmission processing is performed only based on whether the first information is received

[0091] Optionally, step S201 in this implementation includes at least one of the following during specific implementation:

[0092] A11. If the first information is not received before the first PDCCH is received, determine that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data;

[0093] It should be noted that this situation refers to the case where the terminal device does not receive the activation command of the SPSPDSCH or the second PDCCH that schedules the retransmission of the SPS PDSCH before receiving the first PDCCH. After receiving the first PDCCH, when the NDI carried in the first PDCCH is equal to 1, the terminal device determines that the NDI of the data transmission scheduled by the first PDCCH is flipped, that is, it determines that the data scheduled by the first PDCCH is new data.

[0094] After the terminal device determines that the data is newly transmitted, it can perform hybrid automatic repeat request (HARQ) feedback based on the reception status of the newly transmitted data.

[0095] A12. When the terminal receives the first information before receiving the first PDCCH, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data;

[0096] It should be noted that this situation refers to the case where the terminal device receives an activation command for the SPS PDSCH or a second PDCCH that schedules SPS PDSCH retransmission before receiving the first PDCCH. After receiving the first PDCCH, when the NDI carried in the first PDCCH is equal to 1, the terminal device determines that the NDI of the data transmission scheduled by the first PDCCH is not flipped, that is, it determines that the data scheduled by the first PDCCH is retransmitted data.

[0097] After the terminal device determines that the data is retransmitted, it can perform HARQ feedback based on the reception status of the retransmitted data.

[0098] Implementation method 2: Perform transmission processing based on whether the first information is received and the PDSCH feedback status of the SPS PDSCH retransmission before receiving the first PDCCH

[0099] First of all, it should be noted that after receiving PDSCH, the terminal device can send PDSCH feedback (which can also be considered as HARQ feedback) to the network device. When the terminal device successfully receives PDSCH, the feedback is an acknowledgment (ACK). When the terminal device fails to successfully receive PDSCH, the feedback is a non-acknowledgment (NACK).

[0100] Optionally, step S201 in this implementation includes at least one of the following during specific implementation:

[0101] B11. If the terminal does not receive the first information before receiving the first PDCCH, determine that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data;

[0102] It should be noted that in this case, since the terminal device did not receive the activation command of the SPS PDSCH or the PDCCH scheduling the SPS PDSCH retransmission before this transmission, it will not feedback ACK / NACK. Therefore, in this case, it is only necessary to determine that the NDI of the data transmission scheduled by the first PDCCH is flipped when the NDI carried in the first PDCCH is equal to 1 after receiving the first PDCCH if the activation command of the SPS PDSCH or the second PDCCH scheduling the SPS PDSCH retransmission is not received before receiving the first PDCCH, that is, to determine that the data scheduled by the first PDCCH is newly transmitted data.

[0103] It should be noted that the processing of not receiving the first information in this implementation is the same as the processing of not receiving the first information in the following implementation.

[0104] B12. When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPS PDSCH retransmission before receiving the first PDCCH is non-acknowledgement, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data;

[0105] B13. When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPS PDSCH retransmission before receiving the first PDCCH is confirmation, determine not to receive the data scheduled by the first PDCCH;

[0106] It should be noted that B12 and B13 refer to the fact that the terminal device has already performed retransmission scheduling of the SPS PDSCH before receiving the first PDCCH. The first PDCCH sent by the network device is also used to schedule the retransmission of the SPS PDSCH. The terminal needs to determine whether to receive the data scheduled by the first PDCCH and / or determine that the data transmission scheduled by the first PDCCH is retransmission data based on the reception status of the previous SPS PDSCH retransmission (ACK is fed back for successful reception and NACK is fed back for failed reception). In other words, B12 and B13 refer to the fact that the terminal device receives the activation command of the SPS PDSCH or the second PDCCH that schedules the retransmission of the SPS PDSCH before receiving the first PDCCH. At the same time, it is also necessary to determine whether to receive the data scheduled by the first PDCCH and / or determine whether the data transmission scheduled by the first PDCCH is retransmission data based on the reception status of the previous SPS PDSCH retransmission (ACK is fed back for successful reception and NACK is fed back for failed reception). The PDSCH feedback of the PDSCH retransmission, if the PDSCH feedback is NACK, it is determined that the NDI of the data transmission scheduled by the first PDCCH has not been flipped, that is, it is determined that the data scheduled by the first PDCCH is the retransmitted data; if the PDSCH feedback is ACK, it indicates that the terminal device has successfully received the PDSCH, and the terminal device does not need to receive the data scheduled by the first PDCCH at this time; that is, only when the terminal fails to successfully receive the PDSCH, the terminal device will receive the data scheduled by the first PDCCH, thereby reducing the terminal power consumption.

[0107] It should be noted that the main difference between the above-mentioned implementation method 1 and implementation method 2 is: for the terminal device that receives the activation command of the SPS PDSCH and successfully receives the SPS PDSCH scheduled by it before the data transmission scheduled by the first PDCCH, if the terminal device adopts implementation method 1, it needs to receive the retransmitted SPS PDSCH (PDCCH scheduled PDSCH with NDI=1); if the terminal device adopts implementation method 2, it does not need to receive the retransmitted SPS PDSCH (PDCCH scheduled PDSCH with NDI=1).

[0108] Optionally, the NDI value carried in the PDCCH sent by the network device can be 1 or 0. The above has introduced how the terminal device performs transmission processing when the NDI value is 1. The following introduces the case where the NDI value is 0.

[0109] Optionally, the embodiment of the present application further includes:

[0110] Processing downlink SPS allocation information according to the third PDCCH;

[0111] The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

[0112] It should be further noted that a specific implementation of processing the downlink SPS allocation information according to the third PDCCH includes one of the following:

[0113] C11. If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured in the service cell;

[0114] Optionally, in this case, the terminal device also needs to store HARQ information corresponding to the downlink SPS allocation information.

[0115] C12. If the third PDCCH indicates SPS deactivation, delete the downlink SPS allocation information configured by the serving cell.

[0116] The following is an example of the specific application of the embodiment of the present application from the perspective of communication between the base station and the terminal.

[0117] First of all, it should be noted that since one SPS can activate one or more SPS PDSCHs, that is, the SPS activation command carries HARQ process information, after the terminal receives the SPS activation command, each PDSCH corresponds to a HARQ process number according to the HARQ process information in the SPS activation command. Normally, one PDSCH corresponds to one HARQ process number.

[0118] The following is an explanation from the perspective of the HARQ process.

[0119] Example 1: PDCCH scrambled by G-CS-RNTI schedules PDSCH retransmission of SPS group-common

[0120] Scenario: In a multicast, at least one terminal receives the SPS activation command, receives the SPS PDSCH, fails to decode it, and returns a NACK. Therefore, the base station sends a PDCCH scrambled by the G-CS-RNTI and with NDI=1 to retransmit the SPS PDSCH in a multicast manner.

[0121] For a terminal in a group, there are three possible situations:

[0122] Case 1: The terminal receives an SPS activation command (using DCI for SPS activation, the corresponding DCI can be called SPS activation DCI), receives the SPS PDSCH and fails to decode it, and feeds back a NACK, such as Figure 3 As shown;

[0123] Case 2: The terminal receives the SPS activation command, receives the SPS PDSCH and decodes it successfully, and feeds back ACK, such as Figure 4 As shown;

[0124] Case 3: The terminal does not receive the SPS activation command, such as Figure 5 shown.

[0125] If the terminal adopts the above implementation method 1, the main implementation on the terminal side is:

[0126] 1. For terminals belonging to Case 1 and Case 2, the main transmission processing process is:

[0127] If the terminal receives an SPS activation command for the corresponding HRAQ process or a PDCCH scheduling SPS PDSCH retransmission for the corresponding HARQ process before this transmission, the terminal considers that the NDI of this HARQ process is not flipped, ie, the data is retransmitted.

[0128] 2. For the terminal belonging to case 3, the main transmission processing process is:

[0129] If the terminal does not receive the SPS activation command of the corresponding HARQ process or the PDCCH scheduling SPS PDSCH retransmission of the corresponding HARQ before this transmission, the terminal considers that the NDI of this HARQ process is flipped, that is, new data is transmitted.

[0130] If the terminal adopts implementation method 2, the main implementation on the terminal side is:

[0131] 1. For the terminal belonging to case 1, the main transmission processing process is:

[0132] If the terminal receives an SPS activation command for the corresponding HRAQ process, or a PDCCH scheduling SPS PDSCH retransmission for the corresponding HARQ process before this transmission, and the PDSCH feedback received for the corresponding HARQ process before this is NACK, the terminal considers that the NDI of this HARQ process has not flipped, that is, the data is retransmitted.

[0133] 2. For the terminal belonging to Case 2, the main transmission processing process is:

[0134] If the terminal receives an SPS activation command for the corresponding HRAQ process or a PDCCH scheduling SPS PDSCH retransmission for the corresponding HARQ process before this transmission, and the PDSCH feedback received for the corresponding HARQ process before this is ACK, the terminal does not need to receive the corresponding PDSCH.

[0135] 3. For the terminal belonging to case 3, the main transmission processing process is:

[0136] If the terminal does not receive the SPS activation command of the corresponding HARQ process or the PDCCH scheduling SPS PDSCH retransmission of the corresponding HARQ before this transmission, the terminal considers that the NDI of this HARQ process is flipped, that is, new data is transmitted.

[0137] Example 2: PDCCH scrambled by G-CS-RNTI activates / deactivates SPS group-common PDSCH transmission

[0138] In multicast or broadcast services, the base station sends a PDCCH for SPS activation scrambled by the G-CS-RNTI and with NDI = 0. The terminal processes it as follows:

[0139] If the PDCCH content indicates SPS deactivation, clear the downlink SPS allocation information configured in the serving cell;

[0140] or

[0141] If the PDCCH content indicates SPS activation, the downlink SPS allocation information configured by the serving cell and the corresponding HARQ information are stored.

[0142] It should be noted that an embodiment of the present invention proposes a method for receiving multicast SPS PDSCH retransmission data. When a terminal receives a PDCCH for scheduling multicast SPS PDSCH retransmission, subsequent transmission processing is performed according to whether the PDCCH for SPS activation of the corresponding HARQ process or the PDCCH for scheduling SPS PDSCH retransmission of the corresponding HARQ process has been received. This avoids the problem of multicast SPS PDSCH data merging errors when a terminal that has not received an SPS activation command or the PDCCH for scheduling SPS PDSCH of a related HARQ process receives multicast SPS PDSCH retransmission data. The embodiment of the present application can improve the reliability of the multicast SPS retransmission mechanism.

[0143] 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.

[0144] The terminal device 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 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 can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a radio 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, or a user device, but is not limited in the embodiments of the present application.

[0145] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named otherwise. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting 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 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 (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., and 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 geographically separated.

[0146] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be either Single User MIMO (SU-MIMO) or Multi User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or Massive-MIMO. It can also use diversity transmission, precoding, or beamforming.

[0147] like Figure 6 As shown, an embodiment of the present invention provides a transmission processing device 600, which is applied to a terminal device, including:

[0148] The first processing unit 601 is configured to perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information;

[0149] The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission;

[0150] The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI.

[0151] Optionally, when the new data indication NDI included in the first PDCCH has a value of 1, the first processing unit 601 is configured to implement:

[0152] In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

[0153] Optionally, when the new data indication NDI included in the first PDCCH has a value of 1, the first processing unit 601 is configured to implement:

[0154] In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

[0155] Optionally, when the value of the new data indication NDI included in the first PDCCH is 1, the first processing unit 601 is configured to implement at least one of the following:

[0156] When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data;

[0157] When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

[0158] Optionally, the device further includes:

[0159] A second processing unit is configured to process downlink SPS allocation information according to a third PDCCH;

[0160] The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

[0161] Optionally, the second processing unit is configured to implement one of the following:

[0162] If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell;

[0163] If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

[0164] Optionally, in the case of storing downlink SPS allocation information configured by the service cell, the apparatus further includes:

[0165] The storage unit is configured to store hybrid automatic repeat request HARQ information corresponding to the downlink SPS allocation information.

[0166] It should be noted that the device embodiment is a device that corresponds one-to-one to the above-mentioned method embodiment. All implementation methods in the above-mentioned method embodiment are applicable to the device embodiment and can achieve the same technical effects.

[0167] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0168] 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 for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0169] like Figure 7 As shown, an embodiment of the present invention further provides a terminal device, including a processor 700, a transceiver 710, a memory 720, and a program stored in the memory 720 and executable on the processor 700; wherein the transceiver 710 is connected to the processor 700 and the memory 720 via a bus interface, wherein the processor 700 is configured to read the program in the memory and execute the following process:

[0170] Perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information;

[0171] The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission;

[0172] The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI.

[0173] The transceiver 710 is configured to receive and send data under the control of the processor 700 .

[0174] Among them, Figure 7In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture 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 therefore will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 730 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0175] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0176] Optionally, the processor 700 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.

[0177] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0178] Optionally, when a new data indication NDI value included in the first PDCCH is 1, the processor is configured to read a computer program in the memory and perform the following operations:

[0179] In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

[0180] Optionally, when a new data indication NDI value included in the first PDCCH is 1, the processor is configured to read a computer program in the memory and perform the following operations:

[0181] In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

[0182] Optionally, when the new data indication NDI included in the first PDCCH has a value of 1, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0183] When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data;

[0184] When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

[0185] Optionally, the processor, configured to read the computer program in the memory, further performs the following operations:

[0186] Processing downlink SPS allocation information according to the third PDCCH;

[0187] The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

[0188] Optionally, the processor is configured to read the computer program in the memory and perform one of the following operations:

[0189] If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell;

[0190] If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

[0191] Optionally, the processor, configured to read the computer program in the memory, further performs the following operations:

[0192] The hybrid automatic repeat request HARQ information corresponding to the downlink SPS allocation information is stored.

[0193] It should be noted here that the above-mentioned terminal device provided by the embodiment of the present invention can implement all the method steps implemented by 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.

[0194] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements the steps of the transmission processing method applied to a terminal device. 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 a floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0195] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can 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 can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0196] 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 produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. 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.

[0197] 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 comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0198] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed 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 function specified in one or more boxes.

[0199] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A transmission processing method, characterized in that: Executed by the terminal device, including: Perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information; The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission; The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI; The transmission processing is to determine whether data scheduled by the first PDCCH is received, and / or to determine whether the data transmission scheduled by the first PDCCH is new data or retransmission data.

2. The method according to claim 1, characterized in that When the new data indication NDI included in the first PDCCH has a value of 1, the performing transmission processing of data scheduled by the first physical downlink control channel PDCCH based on the reception status of the first information includes: In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

3. The method according to claim 1 or 2, characterized in that When the new data indication NDI included in the first PDCCH has a value of 1, the performing transmission processing of data scheduled by the first physical downlink control channel PDCCH based on the reception status of the first information includes: In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

4. The method according to claim 1 or 2, characterized in that When the new data indication NDI included in the first PDCCH has a value of 1, the performing transmission processing of data scheduled by the first physical downlink control channel PDCCH based on the reception status of the first information includes at least one of the following: When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data; When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

5. The method according to claim 1, wherein Also includes: Processing downlink SPS allocation information according to the third PDCCH; The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

6. The method according to claim 5, characterized in that The processing of downlink SPS allocation information according to the third PDCCH includes the following: If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell; If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

7. The method according to claim 6, characterized in that In the case of storing downlink SPS allocation information configured by the storage service cell, the method further includes: The hybrid automatic repeat request HARQ information corresponding to the downlink SPS allocation information is stored.

8. A terminal device, characterized in that: Including memory, transceiver, processor: 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: Perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception status of the first information; The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission; The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI; The transmission processing is to determine whether data scheduled by the first PDCCH is received, and / or to determine whether the data transmission scheduled by the first PDCCH is new data or retransmission data.

9. The terminal device according to claim 8, characterized in that When the new data indication NDI included in the first PDCCH has a value of 1, the processor is configured to read the computer program in the memory and perform the following operations: In a case where the terminal does not receive the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is flipped and / or the data scheduled by the first PDCCH is new transmission data.

10. The terminal device according to claim 8 or 9, characterized in that: When the new data indication NDI included in the first PDCCH has a value of 1, the processor is configured to read the computer program in the memory and perform the following operations: In a case where the terminal receives the first information before receiving the first PDCCH, it is determined that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmission data.

11. The terminal device according to claim 8 or 9, characterized in that: When the new data indication NDI included in the first PDCCH has a value of 1, the processor is configured to read the computer program in the memory and perform at least one of the following operations: When the terminal receives the first information before receiving the first PDCCH, and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is non-confirmation, determine that the NDI of the data transmission scheduled by the first PDCCH is not flipped and / or the data scheduled by the first PDCCH is retransmitted data; When the terminal receives the first information before receiving the first PDCCH and the PDSCH feedback for the SPSPDSCH retransmission before receiving the first PDCCH is confirmation, it is determined not to receive the data scheduled by the first PDCCH.

12. The terminal device according to claim 8, characterized in that The processor is configured to read the computer program in the memory and further perform the following operations: Processing downlink SPS allocation information according to the third PDCCH; The third PDCCH is scrambled by the G-CS-RNTI and carries an NDI value of 0.

13. The terminal device according to claim 12, characterized in that The processor is configured to read the computer program in the memory and perform one of the following operations: If the third PDCCH indicates SPS activation, storing downlink SPS allocation information configured by the service cell; If the third PDCCH indicates SPS deactivation, the downlink SPS allocation information configured in the serving cell is deleted.

14. A transmission processing device, applied to a terminal device, characterized in that: include: A first processing unit is configured to perform transmission processing of data scheduled by a first physical downlink control channel (PDCCH) based on a reception condition of the first information; The first information includes: an activation command for a semi-persistent scheduling physical downlink shared channel SPS PDSCH or a second PDCCH for scheduling SPS PDSCH retransmission; The first PDCCH is used to schedule a PDSCH common to the semi-persistent scheduling group, and the first PDCCH is scrambled by a multicast semi-static radio network temporary identifier G-CS-RNTI; The transmission processing is to determine whether data scheduled by the first PDCCH is received, and / or to determine whether the data transmission scheduled by the first PDCCH is new data or retransmission data.

15. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute the method according to any one of claims 1 to 7.

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