WO2022006724A1

WO2022006724A1 - Processing method for use in disabling harq retransmission, terminal device, and network device

Info

Publication number: WO2022006724A1
Application number: PCT/CN2020/100505
Authority: WO
Inventors: 李海涛; 胡奕
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2022-01-13
Also published as: CN115516792A

Abstract

The present application relates to a processing method for disabling HARQ retransmission, a terminal device, and a network device. The method comprises: a terminal device receives first instruction information, the first instruction information being used for instructing the terminal device to transmit data via a first HARQ process, where the state of a HARQ retransmission function of the first HARQ process is a disabled state; and the terminal device determines not to transmit data or to newly transmit data via the first HARQ process. The utilization of the embodiments of the present application simplifies the actions of the terminal device.

Description

Processing method, terminal device and network device for closing HARQ retransmission

technical field

The present application relates to the field of communications, and in particular, to a processing method, terminal equipment, and network equipment for disabling HARQ retransmission.

Background technique

In the non-terrestrial network (Non-Terrestrial Networks, NTN) system, due to the long communication distance between terminal equipment and satellite or network equipment, the round trip transmission time (RTT) of signal transmission is much larger than that of terrestrial communication. Therefore, the Hybrid Automatic Repeat Request (HARQ) mechanism in the existing New Radio (NR) system is no longer applicable to the NTN system and needs to be optimized according to actual needs.

SUMMARY OF THE INVENTION

In view of this, embodiments of the present application provide a processing method, terminal device, and network device for turning off HARQ retransmission.

The embodiment of the present application provides a processing method for disabling HARQ retransmission, applied to a terminal device, including:

The terminal device receives first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is a disabled state;

The terminal device determines not to transmit data or to perform new data transmission through the first HARQ process.

The embodiment of the present application provides a processing method for disabling HARQ retransmission, applied to a network device, including:

The network device sends indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state.

The embodiment of the present application also provides a terminal device, including:

a first receiving module, configured to receive first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is disabled state;

A transmission processing module, configured to determine not to transmit data or to perform new data transmission through the first HARQ process.

The embodiment of the present application also provides a network device, including:

A sending module, configured to send indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state.

An embodiment of the present application further provides a terminal device, including: a processor and a memory, where the memory is used to store a computer program, and the processor invokes and executes the computer program stored in the memory to execute the above method.

An embodiment of the present application further provides a network device, including: a processor and a memory, where the memory is used to store a computer program, and the processor invokes and executes the computer program stored in the memory to execute the above method.

An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device on which the chip is installed executes the above method.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the above method.

Embodiments of the present application further provide a computer program product, including computer program instructions, wherein the computer program instructions cause a computer to execute the above method.

The embodiments of the present application also provide a computer program, the computer program enables a computer to execute the above method.

Based on the embodiments of the present application, for a HARQ process in which the HARQ retransmission function is disabled, the terminal device will not perform data retransmission actions on the HARQ process, thereby simplifying the behavior of the terminal device and improving the overall performance of the system to a certain extent.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.

FIG. 2 is a flowchart of a processing method for disabling HARQ retransmission on a terminal device side according to an embodiment of the present application.

FIG. 3 is a flowchart of a processing method for disabling HARQ retransmission on a network device side according to an embodiment of the present application.

FIG. 4 is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

FIG. 5 is a schematic structural block diagram of a network device according to an embodiment of the present application.

FIG. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a chip according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of a communication system according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment (gNB) in the PLMN network or the network equipment in the future evolved PLMN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell can belong to a macro base station, or it can belong to a base station corresponding to a small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

FIG. 1 schematically shows one network device 1100 and two terminal devices 1200. Optionally, the wireless communication system 1000 may include a plurality of network devices 1100, and the coverage of each network device 1100 may include other numbers terminal equipment, which is not limited in this embodiment of the present application. Optionally, the wireless communication system 1000 shown in FIG. 1 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). This is not limited in the application examples.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is used to describe the association relationship of associated objects, for example, it means that there can be three relationships between the associated objects before and after, for example, A and/or B can mean: A alone exists, A and B exist simultaneously, There are three cases of B alone. The character "/" in this document generally indicates that the related objects are "or".

In order to clearly illustrate the idea of the embodiments of the present application, a related configuration manner of the HARQ function in the communication system is briefly described first.

In the art, both the uplink and the downlink in the current NR system support the HARQ mechanism. For example, when the uplink is newly transmitted, the UE will group the media access control layer (Media Access Control, MAC) protocol data unit (Protocol Data Unit, PDU) Stored in the HARQ buffer buffer, then the next time the base station schedules the retransmission of the HARQ process, the UE can directly obtain the transport block (Transport Block, TB) to be retransmitted from the HARQ buffer, without the need for MAC layer regrouping Bag.

For the uplink HARQ process, the base station may not provide explicit HARQ feedback information such as positive acknowledgment/negative acknowledgment (ACK/NACK) information, and the UE can receive the next physical downlink control channel (Physical Downlink Control Channel, PDCCH) in the downlink Whether the New Data Indication (NDI) in the control information (Downlink Control Information, DCI) is reversed to determine whether the uplink transmission is a new transmission or a retransmission. If the NDI is reversed, it means a new transmission; if the NDI is not reversed, it means a new transmission. pass.

Different from the communication between the UE and the cellular network in the traditional NR system, in the NTN system, the signal propagation delay between the UE and the satellite increases significantly. In order to ensure the continuity of data transmission without increasing the number of HARQ processes, it can be considered In the system, the retransmission function of the HARQ process is disabled. The following are several possible solutions:

1. The network device can configure whether to enable the HARQ retransmission function.

2. Whether to enable the HARQ retransmission function can be configured based on the UE or based on the HARQ process. The configuration methods are as follows:

a) Based on UE configuration: The HARQ retransmission function of all HARQ processes of the UE can be configured to be on or off at the same time.

b) HARQ process-based configuration: For multiple HARQ processes of a UE, the HARQ retransmission function of some HARQ processes can be configured to be enabled, and the HARQ retransmission function of other HARQ processes can be disabled.

However, the impact on the UE after the uplink HARQ function is turned off in the NTN system needs to be further studied, formulated and optimized.

To this end, an embodiment of the present application provides a processing method for disabling HARQ retransmission, which is applied to a terminal device. Referring to FIG. 2 , the method includes:

S101, a terminal device receives first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is a disabled state;

S102, the terminal device determines not to transmit data or to perform new data transmission through the first HARQ process.

According to the embodiments of the present application, for a HARQ process in which the HARQ retransmission function is disabled, for convenience, even if the terminal device receives an instruction to transmit data through the HARQ process, the terminal device may not transmit data; , no matter what type of indication information the terminal device receives (for example, it may indicate data retransmission through the HARQ process, or it may indicate data retransmission through the HARQ process), the terminal device can pass the HARQ process through the HARQ process. A new data transmission is performed without data retransmission as instructed.

It can be seen that, based on the embodiments of the present application, for the HARQ process with the HARQ retransmission function disabled, the terminal device will not perform the action of data retransmission on the HARQ process, so that the behavior of the terminal device can be simplified, and the system can be improved to a certain extent. overall performance. In the embodiments of the present application, the "first HARQ process" may be any HARQ process in the HARQ entity corresponding to the terminal device, and the embodiments of the present application are applicable to the processing of each HARQ process in the HARQ entity.

Correspondingly, an embodiment of the present application further provides a processing method for disabling HARQ retransmission, which is applied to a network device. Referring to FIG. 3 , the method includes:

S201: The network device sends indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state. Optionally, the indication information may be carried in DCI.

In some embodiments, the terminal device can receive the RRC configuration information sent by the network device, for example, the configuration information related to the physical uplink shared channel PUSCH, which carries the configuration parameters of the uplink HARQ process, which can include the number of uplink HARQ processes and each uplink HARQ process. The state in which the HARQ retransmission function is located, for example, the HARQ retransmission function is in the ON state, or the HARQ retransmission function is in the OFF state.

In some embodiments, the terminal device can receive scheduling information sent by the network device. For example, when the network device schedules uplink transmission through the physical downlink control channel PDCCH, it can carry indication information in the corresponding downlink control information DCI to indicate a certain The state of the HARQ retransmission function of each uplink HARQ process.

In addition to the above two methods, the terminal device may also use other methods to determine the status of the HARQ retransmission function. For example, before or after the terminal device receives the first indication information, it also receives other types of indication information to determine the HARQ retransmission function. The state of the transmission function; the terminal device may also determine the state of the HARQ retransmission function according to the value of the predetermined bit in the first indication information while receiving the first indication information. The above various determination manners do not affect the solution implementation process of the embodiments of the present application, and therefore are not particularly limited.

The terminal device determines the state (on or off) of the HARQ retransmission function of the HARQ process in the HARQ entity, and determines its own behavior according to the state of the HARQ retransmission function.

According to the embodiment of the present application, for a HARQ process in which the HARQ retransmission function is disabled, if the network device instructs the terminal device to transmit data through the HARQ process, on the one hand, the terminal device may determine not to transmit data, or prohibit the HARQ process in the HARQ process. The data is transmitted on the process, and the instruction is not responded or executed; on the other hand, the terminal device can directly perform new data transmission on the HARQ process. The above two processes do not involve data retransmission. Therefore, the terminal device in the embodiment of the present application does not retransmit data on the HARQ process in which the HARQ retransmission function is disabled, thereby ensuring the data interaction between the terminal device and the network device. The understanding is consistent, the behavior of both parties in the communication process is simplified, and the purpose of improving the overall performance of the system is achieved.

The specific implementation process of the embodiments of the present application will be described in detail below through various specific implementation manners.

Method 1: The terminal device ignores NDI

In the embodiment of the present application, optionally, the first indication information includes a new data indication (NDI), and before the terminal device performs new data transmission through the first HARQ process, it may also The following processing is performed: the terminal device ignores the NDI, and determines to perform new data transmission through the first HARQ process.

For example, the terminal device receives the PDCCH sent by the network device, and the DCI corresponding to the PDCCH includes NDI bits. Normally, the network device instructs the terminal device to perform new data transmission or retransmission by setting the bit value of the DNI to be flipped or not flipped.

However, in the embodiment of the present application, after receiving the DCI, the terminal device will ignore the NDI in it, that is, the terminal device will no longer analyze whether the bits of the NDI are flipped, but directly determine the No. 1 specified by the first indication information. A HARQ process performs new data transmission.

The advantage of this processing is that for the first HARQ process in which the retransmission function is disabled, the terminal device does not retransmit data, which can ensure that the terminal device and the network device have the same understanding of the subsequent processing process, and can avoid the terminal device. The parsing process simplifies the behavior on the terminal device side.

Method 2: The terminal device determines the NDI inversion

In the embodiment of the present application, optionally, the first indication information includes NDI, and before the terminal device performs new data transmission through the first HARQ process, the following processing may also be performed:

The terminal device determines that the NDI is overturned when the NDI is overturned;

● The terminal device determines that the NDI is inverted when the NDI is not inverted.

It can be seen that the terminal device in this embodiment of the present application determines or considers that the NDI is inverted when the NDI is inverted or when the NDI is not inverted. In this way, according to the stipulation that a new data transmission should be performed according to the NDI inversion, the terminal device will perform a new data transmission in the first HARQ process.

Here, the main area of the second method and the aforementioned first method is that in the second method, the terminal device can parse the NDI to obtain the information of whether the NDI has flipped. , but it is always considered that the NDI has been reversed, so that the terminal device performs new data transmission through the first HARQ process. The advantage of this processing is that part of the original processing can be retained. For example, the terminal device can still parse whether the NDI is reversed after receiving the DCI, but it does not determine the new transmission or retransmission according to the actual analysis result, but whether the NDI is reversed or not. , always assume that a rollover has occurred to ensure that no retransmission occurs.

Method 3: The terminal device determines not to transmit data

In the embodiment of the present application, optionally, the first indication information includes NDI, and the terminal device determines not to transmit data, which may be implemented by the following processing: when the terminal device does not flip the NDI Next, the uplink grant (Uplink grant, UL grant) information corresponding to the first HARQ process is ignored, and it is determined not to transmit data.

According to the above processing method, the terminal device in the embodiment of the present application needs to analyze whether the NDI is inverted. If the NDI is not inverted, the terminal device ignores the uplink grant UL grant information corresponding to the first HARQ process, and does not transmit data to the network device. Among them, ignoring the uplink grant UL grant information corresponding to the first HARQ process, that is, without using the UL grant for uplink transmission, can simplify the behavior of the terminal equipment side, and further, the network equipment side does not need to retransmit and decode the UL grant. operation, which is conducive to reducing the delay and improving the overall performance of the system.

Three implementation manners that can be used in the embodiments of the present application have been described above. Among them, if method 3 is used for processing, the terminal device does not need to transmit data on the HARQ process in which the HARQ retransmission function is disabled; if method 1 or method 2 is used for processing processing, the terminal device needs to perform new data transmission on the HARQ process in which the HARQ retransmission function is disabled.

For the case of performing new data transmission (using the first mode or the second mode for processing), the following provides a variety of data new transmission methods that can be adopted in the embodiments of the present application, optionally:

① The terminal device indicates that the physical layer can use the uplink grant UL grant resource corresponding to the first HARQ process to perform new data transmission.

②The terminal device can use the configuration authorization configured grant resource to perform new data transmission in the first HARQ process.

③ The terminal device can perform new data transmission in the first HARQ process according to the modulation and coding strategy MCS corresponding to the first HARQ process.

Any of the above methods ① to ③ can implement new data transmission in the first HARQ process.

Further, for the content of new data transmission, optionally, when the terminal device performs new data transmission through the first HARQ process, it can obtain the media access control layer protocol from the multiplexing and assembly entity (the Multiplexing and assembly entity). Data unit MAC PDU, as newly transmitted data.

Further, in this embodiment of the present application, optionally, the terminal device prohibits the storage of MAC PDUs in the HARQ buffer buffer corresponding to the first HARQ process; or, the terminal device prohibits or stops maintaining and HARQ buffer corresponding to the first HARQ process.

This can be understood as the following situations:

1) The terminal device in this embodiment of the present application may no longer pre-store MAC PDUs in the HARQ buffer corresponding to the HARQ process in which the HARQ retransmission function is disabled.

2) The HARQ buffer for buffering the MAC PDU may no longer be set in the terminal device in the embodiment of the present application.

3) If a HARQ buffer for buffering MAC PDUs has been set in the terminal device, for the HARQ process with the HARQ retransmission function disabled, the terminal device will stop maintaining or not continue to maintain the HARQ buffer.

The advantage of this design is that for the HARQ process in which the HARQ retransmission function is turned off and HARQ retransmission is not required, the terminal device does not need to group packets and store the retransmitted MAC PDU in advance for the data transmitted in the previous time. The operation of the MAC PDU can be canceled, for example, it is forbidden to store the MAC PDU in the corresponding HARQ buffer, to prohibit the maintenance of the corresponding HARQ buffer, or to stop maintaining the corresponding HARQ buffer. In this way, not only the behavior of the terminal can be simplified, but also the internal storage space of the terminal can be avoided by this part of the buffered data, which is beneficial to improve the performance of the terminal device.

Various implementations of the embodiments of the present application have been described above from various aspects, and the data transmission mentioned in the embodiments of the present application may be uplink transmission or downlink data transmission. In the following, the uplink transmission is taken as an example, and the implementation process of the embodiment of the present application is described in detail by using a plurality of specific examples.

Example 1

In this embodiment, for the HARQ process in which the uplink HARQ retransmission function is disabled or canceled, when a network device such as a satellite schedules uplink transmission through the PDCCH, the UE ignores the NDI bit in the PDCCH and uses the UL grant and/or indicated in the PDCCH. or MCS and other parameters for new transmission, the specific implementation process is as follows:

1. The UE receives the RRC configuration information of the network, for example, the following information can be configured:

a) PUSCH related configuration, including uplink HARQ process configuration parameters, including the number of uplink HARQ processes, and the state of the HARQ retransmission function of each uplink HARQ process, which can be either the HARQ retransmission function is enabled, or the HARQ retransmission function is enabled closure.

2. For the HARQ process that disables uplink HARQ retransmission, the UE receives the PDCCH sent from the network, and the corresponding DCI carries indication information to indicate that the HARQ process for which uplink HARQ retransmission is disabled is used for uplink transmission. Here, the UE may have: There are two processing methods as follows:

a) ignore the NDI bit in the PDCCH and consider it to be a new transmission;

b) Regardless of the value indicated by the NDI bit, the NDI bit is considered to be flipped;

3. The UE obtains the MAC PDU from the multiplexing and assembly entity, and uses the parameters such as the UL grant and/or MCS of the HARQ process indicated in the PDCCH to instruct the physical layer to transmit.

In this embodiment, when uplink HARQ retransmission is disabled, the UE does not need to perform uplink retransmission. Regardless of whether the network schedules new transmission or retransmission, the UE can consider it as new transmission scheduling, which can effectively utilize dynamic scheduling resources.

Example 2

In this embodiment, for the HARQ process in which the uplink HARQ retransmission is cancelled, when the network schedules the uplink retransmission through the PDCCH, the UE ignores the UL grant in the PDCCH, and does not use the UL grant for uplink transmission. The specific implementation process is as follows:

1. The UE receives the network RRC configuration information and can configure the following information:

a) PUSCH related configuration, including uplink HARQ process configuration parameters, including the number of uplink HARQ processes, and the state of the HARQ retransmission function of each uplink HARQ process, such as whether to enable HARQ retransmission or disable HARQ retransmission;

2. For the HARQ process in which uplink HARQ retransmission is disabled, the UE receives the PDCCH indication sent from the network, and when using the HARQ process in which uplink HARQ retransmission is disabled for uplink transmission, if the NDI bit in the PDCCH does not flip, the UE ignores it. This UL grant does not perform uplink transmission.

In this embodiment, when the uplink HARQ retransmission is disabled, the UE does not need to perform uplink retransmission. If the network schedules retransmission, the UE can ignore the UL grant, which can simplify the terminal behavior, and the base station does not need to retransmit the grant. Decoding operation.

Example 3

In this embodiment, for the HARQ process that cancels the uplink HARQ retransmission, when the UE transmits the MAC PDU, the UE instructs the physical layer to use the uplink authorized UL grant resources of the HARQ process for transmission. The UE does not maintain the HARQ buffer for the HARQ process, nor does it store the MAC PDU in the HARQ buffer corresponding to the HARQ process. The specific implementation process is as follows:

a) PUSCH related configuration, including uplink HARQ process configuration parameters, including the number of uplink HARQ processes, the state of the HARQ retransmission function of each uplink HARQ process, such as whether to enable HARQ retransmission or disable HARQ retransmission;

b) Configuration authorization Configured grant configuration;

2. For the HARQ process that disables uplink HARQ retransmission, the UE receives the PDCCH sent from the network to indicate uplink transmission or uses configured grant resources for uplink transmission, the UE obtains the MAC PDU from the multiplexing and assembly entity, and uses the UL grant of the HARQ process. Instructs the physical layer to transmit.

In this embodiment, when uplink HARQ retransmission is disabled, the UE does not need to perform uplink retransmission, and therefore does not need to maintain the uplink HARQ buffer, which can reduce UE buffering, simplify UE processing, and help improve UE performance.

The specific settings and implementation manners of the embodiments of the present application have been described above through multiple embodiments from different perspectives. Using the above at least one embodiment, corresponding to the processing method of the above at least one embodiment, an embodiment of the present application further provides a terminal device 100, referring to FIG. 4, which includes:

The first receiving module 110 is configured to receive first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is: Disabled;

The transmission processing module 120 is configured to determine not to transmit data or to perform new data transmission through the first HARQ process.

Using the above at least one embodiment, corresponding to the processing method of the above at least one embodiment, an embodiment of the present application further provides a network device 200, referring to FIG. 5, which includes:

The sending module 210 is configured to send indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state.

The terminal device 100 and the network device 200 in the embodiments of the present application can respectively implement the corresponding functions of the terminal device and the network device in the foregoing method embodiments. For the corresponding processes, functions, implementations, and beneficial effects, reference may be made to the corresponding descriptions in the foregoing method embodiments, which will not be repeated here.

It should be noted that the functions described by the respective modules (submodules, units, or components, etc.) in the terminal device 100 and the network device 200 in the embodiments of the present application may be implemented by different modules (submodules, units, or components, etc.), It can also be implemented by the same module (sub-module, unit or component, etc.). For example, the first sending module and the second sending module can be different modules or the same module, both of which can implement the embodiments of the present application. the corresponding functions of the terminal equipment.

6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application, wherein the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, the communication device 600 may also include a memory 620 . The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices .

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 600 may be the network device of this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the communication device 600 may be a terminal device in this embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which is not repeated here for brevity.

7 is a schematic structural diagram of a chip 700 according to an embodiment of the present application, wherein the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, the chip 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, the chip 700 may further include an input interface 730 . The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740 . The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the chip can be applied to the terminal device in the embodiment of FIG. 4 of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For the sake of brevity, details are not repeated here. .

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.

The memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM).

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

FIG. 8 is a schematic block diagram of a communication system 800 according to an embodiment of the present application, where the communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the methods of the various embodiments of the present application, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the methods of the various embodiments of the present application. function. For brevity, details are not repeated here.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

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

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions. Covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A processing method for closing HARQ retransmission, applied to terminal equipment, including:

The terminal device receives first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is a disabled state;

The terminal device determines not to transmit data or to perform new data transmission through the first HARQ process.
The method of claim 1, wherein,

The first indication information includes a new data indication NDI,

Before the terminal device performs new data transmission through the first HARQ process, the method further includes:

The terminal device ignores the NDI, and determines to perform new data transmission through the first HARQ process.
The method according to claim 1 or 2, wherein,

The first indication information includes NDI,

Before the terminal device performs new data transmission through the first HARQ process, the method further includes:

In the case that the NDI is inverted, the terminal device determines that the NDI is inverted;

and / or,

The terminal device determines that the NDI is inverted when the NDI is not inverted.
The method according to any one of claims 1-3, wherein,

When the terminal device performs new data transmission through the first HARQ process, it acquires the media access control layer protocol data unit MAC PDU from the multiplexing and assembling entity as the newly transmitted data.
The method of any one of claims 1-4, wherein,

The terminal device performs new data transmission through the first HARQ process, including:

The terminal device instructs the physical layer to use the uplink authorized UL grant resource corresponding to the first HARQ process to perform new data transmission;

or,

The terminal device utilizes the configuration authorization configured grant resource to perform new data transmission in the first HARQ process;

or,

The terminal device performs new data transmission in the first HARQ process according to the modulation and coding strategy MCS corresponding to the first HARQ process.
The method of claim 1, wherein,

The first indication information includes NDI,

The terminal device determines not to transmit data, including:

The terminal device ignores the uplink grant UL grant information corresponding to the first HARQ process and determines not to transmit data when the NDI is not reversed.
The method of any one of claims 1-6, further comprising:

The terminal equipment is prohibited from storing MAC PDUs in the HARQ buffer buffer corresponding to the first HARQ process;

or,

The terminal device prohibits or stops maintaining the HARQ buffer buffer corresponding to the first HARQ process.
The method of any one of claims 1-7, further comprising:

The terminal device receives second indication information, where the second indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is an off state or an on state.
The method of claim 8, wherein,

The second indication information is carried in the downlink control information DCI.
The method of any one of claims 1-9, wherein,

The first indication information is carried in downlink control information DCI.
The method of any one of claims 1-10, further comprising:

The terminal device receives first configuration information, where the first configuration information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is an off state or an on state.
The method of claim 11, wherein,

The first configuration information is carried in the radio resource control RRC.
A processing method for closing HARQ retransmission, applied to a network device, comprising:

The network device sends indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state.
The method of claim 13, wherein,

The indication information is carried in the downlink control information DCI.
A terminal device including:

a first receiving module, configured to receive first indication information, where the first indication information is used to instruct the terminal device to transmit data through a first HARQ process, wherein the state of the HARQ retransmission function of the first HARQ process is disabled state;

A transmission processing module, configured to determine not to transmit data or to perform new data transmission through the first HARQ process.
The terminal device according to claim 15, wherein,

The first indication information includes a new data indication NDI,

The terminal device further includes: a first new transmission processing module, configured to ignore the NDI and determine to perform new data transmission through the first HARQ process.
The terminal device according to claim 15 or 16, wherein,

The first indication information includes NDI,

The terminal equipment also includes:

a first determining module, configured to determine that the NDI is inverted when the NDI is inverted; and/or, a second determining module, configured to determine that the NDI is not inverted in the terminal device when the NDI is not inverted , it is determined that the NDI is reversed.
The terminal device according to any one of claims 15-17, wherein,

an acquisition module, configured to acquire MAC PDUs from the multiplexing and assembling entity as newly transmitted data when new data is transmitted through the first HARQ process.
The terminal device according to any one of claims 15-18, wherein,

The transmission processing module includes:

The second new transmission submodule is used to instruct the physical layer to use the uplink authorized UL grant resource corresponding to the first HARQ process to perform new data transmission;

or,

The third new transmission sub-module is used to perform new data transmission in the first HARQ process using the configuration authorization configured grant resource;

or,

The fourth new transmission sub-module is configured to perform new data transmission in the first HARQ process according to the modulation and coding strategy MCS corresponding to the first HARQ process.
The terminal device according to claim 15, wherein,

The first indication information includes NDI,

The transmission processing module includes: a determination submodule, configured to ignore the uplink grant UL grant information corresponding to the first HARQ process and determine not to transmit data when the NDI is not reversed.
The terminal device according to any one of claims 15-20, further comprising:

A first forbidding module, for forbidding to store MAC PDUs in the HARQ buffer buffer corresponding to the first HARQ process;

or,

The second prohibiting module is configured to prohibit or stop maintaining the HARQ buffer corresponding to the first HARQ process.
The terminal device according to any one of claims 15-21, further comprising:

The second receiving module is configured to receive second indication information, where the second indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is an off state or an on state.
The terminal device of claim 22, wherein,

The second indication information is carried in the downlink control information DCI.
The terminal device according to any one of claims 15-23, wherein,

The first indication information is carried in downlink control information DCI.
The terminal device according to any one of claims 15-24, further comprising:

A third receiving module, configured to receive first configuration information, where the first configuration information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is an off state or an on state.
The terminal device of claim 25, wherein,

The first configuration information is carried in the radio resource control RRC.
A network device comprising:

A sending module, configured to send indication information to the terminal device, where the indication information is used to indicate that the state of the HARQ retransmission function of the first HARQ process is a disabled state.
The network device of claim 27, wherein,

The indication information is carried in the downlink control information DCI.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, the processor calls and executes the computer program stored in the memory, and executes any one of claims 1 to 12. steps of the method.
A network device, comprising: a processor and a memory, the memory is used to store a computer program, the processor calls and runs the computer program stored in the memory, and executes the steps of the method according to claim 13 or 14 .
A chip that includes:

A processor for invoking and running a computer program from the memory to cause the device on which the chip is installed to perform the steps of the method as claimed in any one of claims 1 to 14.
A computer-readable storage medium for storing a computer program, wherein,

The computer program causes a computer to perform the steps of the method as claimed in any one of claims 1 to 14.
A computer program product comprising computer program instructions, wherein,

The computer program instructions cause a computer to perform the steps of the method of any of claims 1 to 14.
A computer program which causes a computer to perform the steps of the method of any one of claims 1 to 14.