CN110050494B

CN110050494B - Data retransmission method, terminal equipment and network equipment

Info

Publication number: CN110050494B
Application number: CN201780050862.7A
Authority: CN
Inventors: 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2020-06-23
Anticipated expiration: 2037-11-14
Also published as: CN110050494A; WO2019095113A1

Abstract

The application discloses a data retransmission method, terminal equipment and network equipment, wherein the method comprises the following steps: the terminal equipment acquires a parameter value of at least one uplink resource parameter for transmitting target data; the terminal equipment determines the timer duration of a retransmission timer according to the parameter value of the at least one uplink resource parameter; and the terminal equipment transmits the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer. Therefore, the terminal device determines the timer duration of the retransmission timer used when the data is transmitted according to the parameter value of the at least one parameter used by the data to be transmitted. Because the parameter value of the at least one parameter used in the transmission of different data may be different, the time length of the timer may also be different, so that the QoS requirements of different data can be met in the retransmission of the data.

Description

Data retransmission method, terminal equipment and network equipment

Technical Field

The embodiments of the present application relate to the field of wireless communication, and in particular, to a method for retransmitting data, a terminal device, and a network device.

Background

In a 5G system, or a New Radio (NR) system, the types of services to be processed are greatly enriched, such as Mobile Broadband (MBB), Low Latency and high reliability (URLLC), and Machine Type Communication (MTC). Therefore, when different types of services perform data retransmission, the Quality of Service (QoS) requirements of each Service need to be met.

Disclosure of Invention

The embodiment of the application provides a data retransmission method, terminal equipment and network equipment, which can meet the QoS requirements of different data during data transmission.

In a first aspect, a method for data retransmission is provided, including: the terminal equipment acquires a parameter value of at least one uplink resource parameter for transmitting target data; the terminal equipment determines the timer duration of a retransmission timer according to the parameter value of the at least one uplink resource parameter; and the terminal equipment transmits the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

Therefore, the terminal device determines the timer duration of the retransmission timer used when the data is transmitted according to the parameter value of the at least one parameter used by the data to be transmitted. Because the parameter value of the at least one parameter used in the transmission of different data may be different, the time length of the timer may also be different, so that the QoS requirements of different data can be met in the retransmission of the data.

In a possible implementation manner, the at least one uplink resource parameter includes at least one of the following parameters: a transmission time interval TTI, a basic parameter set, a hybrid automatic repeat request HARQ process, a time interval from an uplink resource authorization moment to a data transmission moment, semi-persistent scheduling SPS configuration, a radio network temporary identifier RNTI, a service type of the target data and a time delay requirement of the target data.

The uplink resource authorization time is the time when the terminal device receives uplink authorization information, and the data transmission time is the time when the terminal device initially transmits data on the uplink resource indicated by the uplink authorization information.

Optionally, the at least one uplink resource parameter includes TTI; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes a basic parameter set; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes a HARQ process; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes a time interval between an uplink resource authorization time and a data transmission time; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter comprises an SPS configuration; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes an RNTI; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes a service type of the target data; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

Optionally, the at least one uplink resource parameter includes a delay requirement of the target data; or, further, the at least one uplink resource parameter further includes the other one or more uplink resource parameters.

In a possible implementation manner, the obtaining, by the terminal device, a parameter value of at least one uplink resource parameter used for transmitting target data includes: the terminal equipment receives configuration information sent by network equipment, wherein the configuration information is used for indicating a parameter value of the at least one uplink resource parameter; and the terminal equipment determines the parameter value of the at least one uplink resource parameter according to the configuration information.

In a possible implementation manner, the determining, by the terminal device, the timer duration of the retransmission timer according to the parameter value of the at least one uplink resource parameter includes: the terminal equipment determines the time length of a timer corresponding to the parameter value of the first parameter in the at least one uplink resource parameter according to the parameter value of the first parameter in the at least one uplink resource parameter and a first mapping relation between a plurality of parameter values of the first parameter and a plurality of timer time lengths; and the terminal equipment determines the timer duration corresponding to the parameter value of the first parameter in the at least one uplink resource parameter as the timer duration of the retransmission timer.

In a possible implementation, the at least one uplink resource parameter is related to a first attribute of the target data.

In one possible implementation, the first attribute includes a traffic type of the target data.

In one possible implementation, the first attribute includes a latency requirement of the target data.

In a possible implementation manner, the service type of the target data is any one of the following: the system comprises a mobile bandwidth service MBB, a low-delay high-reliability service URLLC and a machine type service MTC.

In a possible implementation manner, the transmitting, by the terminal device, the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer includes: the terminal equipment initially transmits the target data according to the at least one uplink resource parameter and starts the retransmission timer; and when the value of the retransmission timer reaches a target value, the terminal equipment stops the transmission of the target data.

In a possible implementation manner, the terminal device increases or decreases the value of the retransmission timer by T, where T > 0, every time the terminal device retransmits the target data.

In a second aspect, a method for data retransmission is provided, including: the network equipment sends configuration information to the terminal equipment, wherein the configuration information indicates a parameter value of at least one uplink resource parameter used for transmitting target data, and the parameter value of the at least one uplink resource parameter is used for the terminal equipment to determine the time length of a timer of a retransmission timer.

Therefore, the network device sends at least one uplink resource parameter to the terminal device, so that the terminal device determines the timer duration of the retransmission timer used when transmitting data according to the parameter value of the at least one parameter. Because the parameter value of the at least one parameter used in the transmission of different data may be different, the time length of the timer may also be different, so that the QoS requirements of different data can be met in the retransmission of the data.

In a possible implementation manner, before the network device sends the configuration information to the terminal device, the method further includes: and the network equipment determines a parameter value of the at least one uplink resource parameter according to a first attribute of the target data, wherein the first attribute comprises the service type of the target data and/or the delay requirement of the target data.

In one possible implementation, the method further includes: the network device sends indication information to the terminal device, where the indication information is used to indicate a first mapping relationship between multiple parameter values of a first parameter in the at least one uplink resource parameter and multiple timer durations, and the first mapping relationship is used for the terminal device to determine the timer duration of the retransmission timer.

Optionally, before the network device sends the indication information to the terminal device, the method further includes: the network device determines the first mapping relationship. For example, the network device determines the first mapping relationship according to the service type and/or the delay requirement of the target data.

In one possible implementation, the method further includes: and the network equipment receives the target data sent by the terminal equipment according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

In a third aspect, a terminal device is provided, where the terminal device may perform the operations of the terminal device in the first aspect or any optional implementation manner of the first aspect. In particular, the terminal device may comprise a module unit for performing the operations of the terminal device in the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a network device is provided, which may perform the operations of the network device in the second aspect or any optional implementation manner of the second aspect. In particular, the network device may comprise modular units for performing the operations of the network device in the second aspect or any possible implementation of the second aspect.

In a fifth aspect, a terminal device is provided, which includes: a processor, a transceiver, and a memory. Wherein the processor, the transceiver and the memory are in communication with each other via an internal connection path. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory. When the processor executes the instructions stored in the memory, the execution causes the terminal device to perform the method of the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal device provided by the third aspect.

In a sixth aspect, a network device is provided, which includes: a processor, a transceiver, and a memory. Wherein the processor, the transceiver and the memory are in communication with each other via an internal connection path. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory. When the processor executes the instructions stored by the memory, the execution causes the network device to perform the method of the second aspect or any possible implementation manner of the second aspect, or the execution causes the network device to implement the network device provided by the fourth aspect.

In a seventh aspect, a computer-readable storage medium is provided, which stores a program that causes a terminal device to execute the method for data retransmission of the first aspect and any one of its various implementations.

In an eighth aspect, a computer-readable storage medium is provided, which stores a program that causes a network device to execute the method of the second aspect described above and any of its various implementations for data retransmission.

In a ninth aspect, a system chip is provided, which comprises an input interface, an output interface, a processor and a memory, wherein the processor is configured to execute instructions stored in the memory, and when the instructions are executed, the processor may implement the method of the first aspect or any possible implementation manner of the first aspect.

In a tenth aspect, a system chip is provided, which comprises an input interface, an output interface, a processor and a memory, wherein the processor is configured to execute instructions stored in the memory, and when the instructions are executed, the processor may implement the method of the second aspect or any possible implementation manner of the second aspect.

In an eleventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a twelfth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect described above or any possible implementation of the second aspect.

Drawings

Fig. 1 is a schematic architecture diagram of an application scenario according to an embodiment of the present application.

Fig. 2 is a schematic flow chart of a data retransmission method according to an embodiment of the present application.

Fig. 3 is a schematic flow chart of a data retransmission method according to an embodiment of the present application.

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

Fig. 5 is a schematic block diagram of a network device of an embodiment of the present application.

Fig. 6 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a system chip 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.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a Long Term Evolution (Long Term Evolution) System, an LTE (frequency Division Duplex) System, an LTE Time Division Duplex (FDD) System, a Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), and a future 5G Communication System.

Various embodiments are described herein in connection with a terminal device. A terminal device may also refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

Various embodiments are described herein in connection with a network device. The network device may be a device for communicating with the terminal device, and for example, may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved node B (eNB, or eNodeB) in an LTE system, or may be a relay Station, an access point, a vehicle-mounted device, a wearable device, and a network-side device in a future 5G network or a network-side device in a future evolved PLMN network.

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The communication system in fig. 1 may include a network device 10 and a terminal device 20. The network device 10 is used to provide a communication service for the terminal device 20 and access a core network, and the terminal device 20 may access the network by searching for a synchronization signal, a broadcast signal, or the like transmitted by the network device 10, thereby performing communication with the network. The arrows shown in fig. 1 may represent uplink/downlink transmissions over a cellular link between terminal device 20 and network device 10.

The network in this embodiment of the application may refer to a Public Land Mobile Network (PLMN), a Device to Device (D2D) network, a Machine to Machine/Man (M2M) network, or other networks, where fig. 1 is a simplified schematic diagram of an example, and the network may further include other terminal devices, which is not shown in fig. 1.

Fig. 2 is a schematic flow chart of a data retransmission method according to an embodiment of the present application. The method shown in fig. 2 may be performed by a terminal device, which may be, for example, terminal device 20 shown in fig. 1. As shown in fig. 2, the data retransmission method includes:

in 210, the terminal device obtains a parameter value of at least one uplink resource parameter for transmitting the target data.

Optionally, the at least one uplink resource parameter includes at least one of the following parameters: a transmission time interval TTI, a base parameter set (Numerology), a Hybrid Automatic Repeat Request (HARQ) process, a time interval from an uplink resource grant time to a data transmission time (for example, may be referred to as K2), Semi-Persistent Scheduling (SPS) configuration, Radio Network Temporary Identity (RNTI), a traffic type of the target data, and a delay requirement of the target data.

The Uplink resource authorization time is a time when the terminal device receives Uplink Grant (ULGrant), and the data transmission time is a time when the terminal device initially transmits the target data on the Uplink resource indicated by the Uplink Grant.

Optionally, the base parameter set may for example comprise at least one of the following parameters: the number of subcarriers in a specific bandwidth, the number of subcarriers in a physical resource block PRB, the length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol, the number of points of a Fast Fourier Transform (FFT) or Inverse fourier Transform (IFFT) for generating an OFDM signal, the number of OFDM symbols in a Transmission Time Interval (TTI), the number of TTIs included in a specific Time length, and the length of a signal prefix, and the like.

Optionally, the obtaining, by the terminal device, a parameter value of at least one uplink resource parameter for transmitting the target data includes: the terminal device receives configuration information sent by a network device, wherein the configuration information is used for indicating a parameter value of the at least one uplink resource parameter; and the terminal equipment determines the parameter value of the at least one uplink resource parameter according to the configuration information.

Specifically, the network device may send configuration information to the terminal device to implicitly or explicitly indicate a parameter value of the at least one uplink resource parameter to the terminal device. For example, the configuration information may carry a parameter value of the at least one uplink resource parameter, and the terminal device may know the parameter value of the at least one uplink resource parameter after receiving the configuration information.

Alternatively, the configuration information may also implicitly indicate a parameter value of the at least one uplink resource parameter to the terminal device. For example, assuming that the at least one uplink resource parameter includes a TTI length, if the configuration information sent by the network device to the terminal device indicates that the terminal device transmits the target data in a first slot of a subframe, the terminal device may determine that the TTI length in the at least one uplink resource parameter is 1 ms; if the configuration information sent by the network device to the terminal device indicates that the terminal device transmits the target data in the second slot of a subframe, the terminal device may determine that the TTI length in the at least one uplink resource parameter is 2 ms.

Optionally, the at least one uplink resource parameter is related to a first attribute of the target data.

Optionally, the first attribute includes a traffic type of the target data.

Optionally, the first attribute comprises a latency requirement of the target data.

Optionally, the service type of the target data may be any one of the following: the system comprises a mobile bandwidth service MBB, a low-delay high-reliability service URLLC and a machine type service MTC.

Optionally, the retransmission timer is used for a Media Access Control (MAC) entity of the terminal device to perform transmission of the target data.

In 220, the terminal device determines a timer duration of the retransmission timer according to the parameter value of the at least one uplink resource parameter.

Specifically, a plurality of timer durations may be configured for the retransmission timer, the timer durations may be related to parameter values of at least some of the at least one uplink resource parameter, and the terminal device may select, according to the parameter values of at least some of the at least one uplink resource parameter, a timer duration to be used by the retransmission timer from the timer durations. The terminal device may determine the retransmission timer according to a value of one of the at least one uplink resource parameter, or the terminal device may determine a timer duration of the retransmission timer according to values of multiple parameters of the at least one uplink resource parameter.

Optionally, 220 may include 221 and 222. Wherein:

in 221, the terminal device determines, according to a parameter value of a first parameter of the at least one uplink resource parameter and a first mapping relationship between a plurality of parameter values of the first parameter and a plurality of timer durations, a timer duration corresponding to the parameter value of the first parameter of the at least one uplink resource parameter.

In 222, the terminal device determines the timer duration corresponding to the parameter value of the first parameter of the at least one uplink resource parameter as the timer duration of the retransmission timer.

For example, a first parameter of the at least one uplink resource parameter is a TTI length, which may be 2ms or 1ms, and there is a one-to-one correspondence between the two TTI lengths and the durations of the two timers. And the terminal equipment determines the timer duration corresponding to the TTI length as the timer duration of the retransmission timer according to the obtained TTI length. For example, in the first mapping relationship shown in table one, if the parameter value of the first parameter (i.e. the TTI length) is 2ms, the terminal device uses T1 as the timer duration of the retransmission timer; if the parameter value of the first parameter (i.e. the TTI length) is 1ms, the terminal device uses T2 as the timer duration of the retransmission timer.

Watch 1

TTI length	Duration of timer
		2ms	T1
1ms	T2

For another example, a first parameter in the at least one uplink resource parameter is a basic parameter set, where the basic parameter set includes a subcarrier interval, the subcarrier interval may be 15kHz, 30kHz, or 60kHz, there is a one-to-one correspondence relationship between the three subcarrier intervals and three timer durations, and the terminal device determines, according to the obtained subcarrier interval, that the timer duration corresponding to the subcarrier interval is the timer duration of the retransmission timer. As shown in the first mapping relationship in table two, if the parameter value of the first parameter (i.e. the subcarrier spacing) is 15kHz, the terminal device uses T3 as the timer duration of the retransmission timer; if the parameter value of the first parameter (i.e. the subcarrier spacing) is 30kHz, the terminal device uses T4 as the timer duration of the retransmission timer; if the parameter value of the first parameter (i.e., the subcarrier spacing) is 60kHz, the terminal device uses T5 as the timer duration of the retransmission timer.

Watch two

Subcarrier spacing	Duration of timer
		15kHz	T3
30kHz	T4
		60kHz	T5

For another example, it is assumed that the at least one uplink resource parameter includes a TTI length and an RNTI, the TTI length may be 2ms or 1ms, and the RNTI may be RNTI 1 or RNTI 2. As shown in the first mapping relationship in table three, when the TTI length is 2ms and the RNTI is RNTI 1, the terminal device sets the timer duration of the retransmission timer to T6; when the TTI length is 2ms and the RNTI is RNTI 2, the terminal device sets the timer duration of the retransmission timer to T7; when the TTI length is 1ms and the RNTI is RNTI 1, the terminal device sets the timer duration of the retransmission timer to T8; when the TTI length is 1ms and the RNTI is RNTI 2, the terminal device sets the timer duration of the retransmission timer to T9.

Watch III

For another example, a first parameter of the at least one uplink resource parameter is a delay requirement of the target data, and the delay requirement may be T_A、T_BAnd T_CThe terminal device determines the timer duration corresponding to the delay requirement as the timer duration of the retransmission timer according to the delay requirement. If the parameter value of the first parameter (i.e. the delay requirement) is T, as shown in the first mapping relation of table four_AThen the terminal device uses T10 as the timer duration of the retransmission timer; if the value of the first parameter (i.e. the delay requirement) is T_BThen the terminal device uses T11 as the timer duration of the retransmission timer; if the value of the first parameter (i.e. the delay requirement) is T_CThen the terminal device uses T12 as the timer duration of the retransmission timer.

Watch four

Time delay requirement	Duration of timer
		T_A	T10
T_B	T11
		T_C	T12

Optionally, when the target data to be transmitted is carried in a plurality of logical channels, if the data carried in each logical channel has a respective delay requirement. Then, the terminal device may determine the timer duration of the retransmission timer according to the maximum delay requirement of the plurality of delay requirements corresponding to the plurality of logical channels and the first mapping relationship; or the terminal device may also determine the timer duration of the retransmission timer according to the minimum delay requirement among the multiple delay requirements corresponding to the multiple logical channels and the first mapping relationship.

The terminal device may determine the time duration of the timer according to the time delay requirement of the target data, and may use a first mapping relationship shown in table four, for example. Or, optionally, the terminal device may directly set the timer duration of the retransmission timer to be equal to the delay requirement of the target data without the first mapping relationship shown in table four. Corresponding to T10 ═ T_A、T11＝T_B、T12＝T_C。

In 230, the terminal device transmits the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

Optionally, the transmitting, by the terminal device, the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer includes: the terminal device initially transmits the target data according to the at least one uplink resource parameter, and starts the retransmission timer; when the value of the retransmission timer reaches a target value, the terminal device stops transmission of the target data.

Further, the terminal device increases or decreases the value of the retransmission timer by T, T > 0, every time the terminal device performs retransmission of the target data.

Specifically, the terminal device transmits the target data according to the at least one uplink resource parameter, and starts a retransmission timer when the target data is initially transmitted, where a duration of the retransmission timer is the timer duration determined in the step 220, and when the retransmission timer reaches the target value, the terminal device stops retransmission of the target data.

For example, as the absolute time increases, the value of the timer gradually changes from the initial value regardless of whether retransmission of the target data is performed until the target value is reached, at which time the terminal device stops transmission of the target data.

For another example, the terminal device increases the value of the retransmission timer by T (the initial value of the retransmission timer is smaller than the target value) every time retransmission of the target data is performed.

For another example, the terminal device decreases the value of the retransmission timer by T (the initial value of the retransmission timer is larger than the target value) every time retransmission of the target data is performed.

Therefore, in the embodiment of the present application, the terminal device determines, according to a parameter value of at least one uplink resource parameter used by data to be transmitted, a timer duration of a retransmission timer used when the data is transmitted. Because the parameter values of the at least one uplink resource parameter used by different data during transmission may be different, the time lengths of the timers may also be different, thereby being capable of meeting the QoS requirements of different data during data retransmission.

Fig. 3 is a schematic flow chart of a data retransmission method according to an embodiment of the present application. The method shown in fig. 3 may be performed by a network device, which may be, for example, network device 10 shown in fig. 1. As shown in fig. 3, the data retransmission method includes:

in 310, the network device sends configuration information to the terminal device, where the configuration information indicates a parameter value of at least one uplink resource parameter used for transmitting the target data, and the parameter value of the at least one uplink resource parameter is used for the terminal device to determine a timer duration of a retransmission timer.

Therefore, in this embodiment of the present application, the network device sends at least one uplink resource parameter to the terminal device, so that the terminal device determines, according to a parameter value of the at least one parameter, a timer duration of a retransmission timer used when data is transmitted. Because the parameter value of the at least one parameter used in the transmission of different data may be different, the time length of the timer may also be different, so that the QoS requirements of different data can be met in the retransmission of the data.

Optionally, before the network device sends the configuration information to the terminal device, the method further includes: the network device determines a parameter value of the at least one uplink resource parameter according to a first attribute of the target data, where the first attribute includes a service type of the target data and/or a delay requirement of the target data.

Optionally, the method further comprises: the network device sends indication information to the terminal device, where the indication information is used to indicate a first mapping relationship between multiple parameter values of a first parameter in the at least one uplink resource parameter and multiple timer durations, and the first mapping relationship is used for the terminal device to determine the timer duration of the retransmission timer.

Optionally, the at least one uplink resource parameter includes at least one of the following parameters: a transmission time interval TTI, a basic parameter set, a hybrid automatic repeat request HARQ process, a time interval from an uplink resource authorization moment to a data transmission moment, semi-persistent scheduling SPS configuration, a radio network temporary identifier RNTI, a service type of the target data and a time delay requirement of the target data.

The uplink resource authorization time is the time when the terminal device receives the uplink authorization information, and the data transmission time is the time when the terminal device initially transmits data on the uplink resource indicated by the uplink authorization information.

Optionally, the method further comprises: and the network equipment receives the target data sent by the terminal equipment according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

Optionally, the service type of the target data is any one of the following: the system comprises a mobile bandwidth service MBB, a low-delay high-reliability service URLLC and a machine type service MTC.

It should be understood that, for specific details of the steps executed by the network device in the data retransmission process, reference may be made to the foregoing description of the terminal device in fig. 2, and for brevity, detailed description is not repeated here.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The method for retransmitting data according to the embodiment of the present application is described above in detail, and the apparatus according to the embodiment of the present application will be described below with reference to fig. 4 to 7, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 4, the terminal device 400 includes an acquisition unit 410, a determination unit 420, and a transceiving unit 430. Wherein:

an obtaining unit 410, configured to obtain a parameter value of at least one uplink resource parameter for transmitting target data.

A determining unit 420, configured to determine a timer duration of a retransmission timer according to the parameter value of the at least one uplink resource parameter acquired by the acquiring unit 410.

A transceiving unit 430, configured to transmit the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer determined by the determining unit 420.

Optionally, the obtaining unit 410 is specifically configured to: receiving, by the transceiver unit 430, configuration information sent by a network device, where the configuration information is used to indicate a parameter value of the at least one uplink resource parameter; and determining a parameter value of the at least one uplink resource parameter according to the configuration information.

Optionally, the determining unit 420 is specifically configured to: determining a timer duration corresponding to a parameter value of a first parameter in the at least one uplink resource parameter according to the parameter value of the first parameter in the at least one uplink resource parameter and a first mapping relationship between a plurality of parameter values of the first parameter and a plurality of timer durations; determining the timer duration corresponding to the parameter value of the first parameter in the at least one uplink resource parameter as the timer duration of the retransmission timer.

Optionally, the transceiver unit 430 is specifically configured to: according to the at least one uplink resource parameter, primarily transmitting the target data and starting the retransmission timer; and stopping the transmission of the target data when the value of the retransmission timer reaches a target value.

Optionally, each time the terminal device retransmits the target data, the value of the retransmission timer is increased by T or decreased by T, where T > 0.

It should be understood that the terminal device 400 may perform corresponding operations of the method 200 performed by the terminal device in the foregoing method embodiments, and details are not described herein for brevity.

Fig. 5 is a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in fig. 5, the network device 500 includes a transceiving unit 510. Wherein:

a transceiver unit 510, configured to send configuration information to a terminal device, where the configuration information indicates a parameter value of at least one uplink resource parameter used for transmitting target data, and the parameter value of the at least one uplink resource parameter is used for the terminal device to determine a timer duration of a retransmission timer.

Optionally, the network device further includes: a determining unit 520, configured to determine a parameter value of the at least one uplink resource parameter according to a first attribute of the target data, where the first attribute includes a service type of the target data and/or a delay requirement of the target data.

Optionally, the transceiver unit 510 is further configured to: and sending indication information to the terminal device, where the indication information is used to indicate a first mapping relationship between multiple parameter values of a first parameter in the at least one uplink resource parameter and multiple timer durations, and the first mapping relationship is used for the terminal device to determine the timer duration of the retransmission timer.

Optionally, the at least one uplink resource parameter includes at least one of the following parameters: a transmission time interval TTI, a basic parameter set, a hybrid automatic repeat request HARQ process, a time interval from an uplink resource authorization time to a data transmission time, a semi-persistent scheduling SPS configuration, a radio network temporary identifier RNTI, a service type of the target data and a time delay requirement of the target data,

Optionally, the transceiver unit 510 is further configured to: and receiving the target data sent by the terminal equipment according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

It should be understood that the network device 500 may perform the corresponding operations of the method 300 performed by the network device in the above method embodiments, and therefore, for brevity, the description is not repeated herein.

Fig. 6 is a schematic configuration diagram of a communication apparatus 600 according to an embodiment of the present application. As shown in fig. 6, the communication device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, the transceiver 620, and the memory 630 communicate with each other through an internal connection path. The memory 630 is used for storing instructions, and the processor 610 is used for executing the instructions stored in the memory 630 to control the transceiver 620 to receive signals or transmit signals.

Optionally, the processor 610 may call the program code stored in the memory 630 to perform the corresponding operations of the method 200 executed by the terminal device in the method embodiment, which are not described herein again for brevity.

Optionally, the processor 610 may call the program code stored in the memory 630 to perform the corresponding operations of the method 300 executed by the network device in the method embodiment, which are not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 7 is a schematic structural diagram of a system chip according to an embodiment of the present application. The system chip 700 of fig. 7 includes an input interface 701, an output interface 702, at least one processor 703 and a memory 704, where the input interface 701, the output interface 702, the processor 703 and the memory 704 are connected to each other through an internal connection path. The processor 703 is configured to execute the code in the memory 704.

Optionally, when the code is executed, the processor 703 may implement the method 200 performed by the terminal device in the method embodiment. For brevity, no further description is provided herein.

Optionally, when the code is executed, the processor 703 may implement the method 300 performed by the network device in the method embodiment. For brevity, no further description is provided herein.

It should be understood that in the present embodiment, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

It should also be understood that the term "and/or" herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated into one monitoring unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of data retransmission, the method comprising:

the terminal equipment acquires a parameter value of at least one uplink resource parameter for transmitting target data;

the terminal equipment determines the timer duration of a retransmission timer according to the parameter value of the at least one uplink resource parameter;

the terminal equipment transmits the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer;

wherein, the determining, by the terminal device, the timer duration of the retransmission timer according to the parameter value of the at least one uplink resource parameter includes:

the terminal equipment determines the time length of a timer corresponding to the parameter value of the first parameter in the at least one uplink resource parameter according to the parameter value of the first parameter in the at least one uplink resource parameter and a first mapping relation between a plurality of parameter values of the first parameter and a plurality of timer time lengths;

and the terminal equipment determines the timer duration corresponding to the parameter value of the first parameter in the at least one uplink resource parameter as the timer duration of the retransmission timer.

2. The method of claim 1, wherein the at least one uplink resource parameter comprises at least one of the following parameters:

a transmission time interval TTI, a hybrid automatic repeat request HARQ process, a time interval from an uplink resource authorization time to a data transmission time, a semi-persistent scheduling SPS configuration, a radio network temporary identifier RNTI, a service type of the target data and a time delay requirement of the target data,

3. The method according to claim 1 or 2, wherein the obtaining, by the terminal device, the parameter value of the at least one uplink resource parameter for transmitting the target data comprises:

the terminal equipment receives configuration information sent by network equipment, wherein the configuration information is used for indicating a parameter value of the at least one uplink resource parameter;

and the terminal equipment determines the parameter value of the at least one uplink resource parameter according to the configuration information.

4. The method according to claim 1 or 2, wherein the terminal device transmits the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer, and comprises:

the terminal equipment initially transmits the target data according to the at least one uplink resource parameter and starts the retransmission timer;

and when the value of the retransmission timer reaches a target value, the terminal equipment stops the transmission of the target data.

5. The method according to claim 4, wherein the value of the retransmission timer is increased by T or decreased by T, T > 0, every time the terminal device performs retransmission of the target data.

6. A method of data retransmission, the method comprising:

the method comprises the steps that network equipment sends configuration information to terminal equipment, wherein the configuration information indicates a parameter value of at least one uplink resource parameter used for transmitting target data, and the parameter value of the at least one uplink resource parameter is used for the terminal equipment to determine the time length of a timer of a retransmission timer;

the network device sends indication information to the terminal device, where the indication information is used to indicate a first mapping relationship between multiple parameter values of a first parameter in the at least one uplink resource parameter and multiple timer durations, and the first mapping relationship is used for the terminal device to determine the timer duration of the retransmission timer.

7. The method of claim 6, wherein before the network device sends configuration information to a terminal device, the method further comprises:

and the network equipment determines a parameter value of the at least one uplink resource parameter according to a first attribute of the target data, wherein the first attribute comprises the service type of the target data and/or the delay requirement of the target data.

8. The method according to claim 6 or 7, wherein the at least one uplink resource parameter comprises at least one of the following parameters:

9. The method according to claim 6 or 7, characterized in that the method further comprises:

and the network equipment receives the target data sent by the terminal equipment according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

10. The method according to claim 6 or 7, wherein the traffic type of the target data is any one of the following:

the system comprises a mobile bandwidth service MBB, a low-delay high-reliability service URLLC and a machine type service MTC.

11. A terminal device, characterized in that the terminal device comprises:

an obtaining unit, configured to obtain a parameter value of at least one uplink resource parameter used for transmitting target data;

a determining unit, configured to determine a timer duration of a retransmission timer according to the parameter value of the at least one uplink resource parameter acquired by the acquiring unit;

a receiving and sending unit, configured to transmit the target data according to the parameter value of the at least one uplink resource parameter and the retransmission timer determined by the determining unit;

wherein the determining unit is specifically configured to:

determining a timer duration corresponding to a parameter value of a first parameter in the at least one uplink resource parameter according to the parameter value of the first parameter in the at least one uplink resource parameter and a first mapping relationship between a plurality of parameter values of the first parameter and a plurality of timer durations;

determining the timer duration corresponding to the parameter value of the first parameter in the at least one uplink resource parameter as the timer duration of the retransmission timer.

12. The terminal device according to claim 11, wherein the at least one uplink resource parameter comprises at least one of the following parameters:

13. The terminal device according to claim 11 or 12, wherein the obtaining unit is specifically configured to:

receiving configuration information sent by network equipment through the transceiver unit, wherein the configuration information is used for indicating a parameter value of the at least one uplink resource parameter;

and determining a parameter value of the at least one uplink resource parameter according to the configuration information.

14. The terminal device according to claim 11 or 12, wherein the transceiver unit is specifically configured to:

according to the at least one uplink resource parameter, primarily transmitting the target data and starting the retransmission timer;

and stopping the transmission of the target data when the value of the retransmission timer reaches a target value.

15. The terminal device according to claim 14, wherein the value of the retransmission timer is increased by T or decreased by T, T > 0, every time the terminal device performs retransmission of the target data.

16. A network device, characterized in that the network device comprises:

a transceiver unit, configured to send configuration information to a terminal device, where the configuration information indicates a parameter value of at least one uplink resource parameter used for transmitting target data, and the parameter value of the at least one uplink resource parameter is used for the terminal device to determine a timer duration of a retransmission timer;

the transceiver unit is further configured to:

and sending indication information to the terminal device, where the indication information is used to indicate a first mapping relationship between multiple parameter values of a first parameter in the at least one uplink resource parameter and multiple timer durations, and the first mapping relationship is used for the terminal device to determine the timer duration of the retransmission timer.

17. The network device of claim 16, wherein the network device further comprises:

a determining unit, configured to determine a parameter value of the at least one uplink resource parameter according to a first attribute of the target data, where the first attribute includes a service type of the target data and/or a delay requirement of the target data.

18. The network device according to claim 16 or 17, wherein the at least one uplink resource parameter comprises at least one of the following parameters:

19. The network device according to claim 16 or 17, wherein the transceiving unit is further configured to:

and receiving the target data sent by the terminal equipment according to the parameter value of the at least one uplink resource parameter and the retransmission timer.

20. The network device according to claim 16 or 17, wherein the traffic type of the target data is any one of the following: