CN111713154B

CN111713154B - Data transmitting method, data receiving method, data transmitting device, data receiving device and storage medium

Info

Publication number: CN111713154B
Application number: CN201880089295.0A
Authority: CN
Inventors: 王宏; 柴丽; 张戬; 唐珣
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2023-10-20
Anticipated expiration: 2038-02-13
Also published as: CN111713154A; WO2019157682A1

Abstract

The embodiment of the application provides a data sending and receiving method and device and a storage medium, wherein the method comprises the following steps: the terminal equipment acquires configuration information of N carriers, wherein N is greater than or equal to 2, the configuration information is used for repeatedly sending data on SPS resources of the N carriers, and the terminal equipment repeatedly sends the data by using the SPS resources of the N carriers according to the configuration information. According to the method, data is repeatedly sent on a plurality of carriers, some of the plurality of carriers are good in communication quality, some of the plurality of carriers are poor in communication quality, and the reliability of data transmission can be increased as a whole. And repeated transmission occupies the resources of a plurality of carriers, so that the carrier configuration is more flexible. In addition, in this embodiment, the time interval between carriers of the SPS resource may be set to be very small, so as to meet the transmission delay requirement of data.

Description

Data transmitting method, data receiving method, data transmitting device, data receiving device and storage medium

Technical Field

The present application relates to communications technologies, and in particular, to a method and apparatus for transmitting and receiving data, and a storage medium.

Background

With the development of wireless communication technology and the expansion of application scenarios, for example, a fifth Generation mobile communication (5 th-Generation, 5G) system supports an enhanced mobile broadband (enhanced mobile broadband, eMBB) service, a high-reliability low-latency communication (ultra reliable and low latency communications, URLLC) service, and a massive machine type communication (massive machine type communications, mctc) service, service demands tend to be diversified. The URLLC service has extremely high requirements on reliability and time delay, and a group of typical indexes of the URLLC service are as follows: data transmission reaches 99.999% reliability in 1ms time.

In long term evolution (Long Term Evolution, LTE) systems, uplink or downlink data (transport block, transmission Block, TB) needs to be separated by at least 8 transmission time intervals (Transmission Time Interval, TTI) from initial transmission to retransmission. Currently, the typical value of the TTI is 1ms, in order to meet the time delay requirement of the URLLC service, the terminal equipment needs to successfully send the data in one TTI, but the highest reliability of the data sent once is 95% at present, and the reliability requirement of the URLLC service cannot be met. If a retransmission mode is adopted, the delay requirement of the URLLC service cannot be met, because the next retransmission is 8ms later. In addition, the TTI also supports 0.14ms (i.e., one seventh) and 0.5ms, under which the retransmission still fails to meet the latency requirements of the URLLC traffic.

Currently, in the LTE system and the NR system, a terminal device can only repeatedly transmit a TB on the same carrier, and when the communication quality of the carrier is poor, the reliability of data transmission is affected, and the repeated transmission occupies the same carrier, which results in inflexible resource allocation.

Disclosure of Invention

The application provides a data transmitting and receiving method and device and a storage medium, which enable terminal equipment to repeatedly transmit data on a plurality of carriers, enhance the reliability of data slave, and enable resource allocation to be more flexible.

The first aspect of the present application provides a data transmission method, including:

the method comprises the steps that terminal equipment obtains configuration information of N carriers, wherein N is greater than or equal to 2, and the configuration information is used for repeatedly sending data on semi-persistent scheduling (SPS) resources of the N carriers;

and the terminal equipment repeatedly transmits data by using SPS resources of the N carriers according to the configuration information.

The terminal equipment enhances the reliability of data transmission by repeatedly sending data on a plurality of carriers, and ensures that the resource allocation is more flexible.

In a possible implementation manner, the configuration information includes at least one of the following information: the method comprises the steps of using sequence information of N carriers, SPS resource information of each carrier in the N carriers, period information of SPS resources of each carrier, duration information of SPS resources of each carrier, time interval information of SPS resources among the carriers and repeated sending frequency information of data.

In a possible implementation manner, the terminal device obtains configuration information of N carriers, including:

the terminal equipment receives a first message sent by the network equipment, wherein the first message comprises the following components: the carrier list comprises M carriers, wherein M is greater than or equal to N, and the first message further comprises at least one of the following information: the period information of the SPS resource of each carrier, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between carriers and the repeated sending frequency information of data.

In a possible implementation manner, the method further includes:

and the terminal equipment receives the activation information sent by the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation manner, the method further includes:

and the terminal equipment sends activation information to the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation manner, the method further includes:

and the terminal equipment receives the activation response information sent by the network equipment, wherein the activation response information is used for confirming that SPS resources are activated.

When the terminal device activates SPS resources of N carriers, the network device may avoid collision of SPS resource usage of carriers by sending activation response information to the terminal device.

In a possible implementation manner, the terminal device receives activation information sent by the network device, including:

the terminal equipment receives N first activation messages sent by the network equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

The terminal device receives a second activation message sent by the network device on a first carrier of the N carriers, where the second activation message is used to activate SPS resources on the N carriers.

The network device activates SPS resources on the N carriers by sending an activation message, reducing the resource overhead of the activation message.

In a possible implementation manner, the first activation message is carried on a physical downlink control channel PDCCH, where the PDCCH indicates SPS resources on a carrier on which the PDCCH is transmitted.

In a possible implementation manner, the second activation message is carried on a physical downlink control channel PDCCH of the first carrier;

the PDCCH of the first carrier indicates SPS resources on the N carriers, or the PDCCH of the first carrier indicates SPS resources on the first carrier, and the PDCCHs on the remaining carriers in the N carriers respectively indicate SPS resources on the remaining carriers.

In a possible implementation manner, the terminal device sends activation information to a network device, including:

and the terminal equipment uses the resources of the first carrier wave in the N carrier waves to send a second activation message to the network equipment, wherein the second activation message is used for activating SPS resources on the N carrier waves.

The terminal device activates SPS resources on N carriers by sending an activation message, so that the resource overhead of the activation message is reduced.

and the terminal equipment uses the resources on the N carriers to send N first activation messages to the network equipment, wherein the N first activation messages are used for activating SPS resources on the N carriers.

In a possible implementation manner, the terminal device obtains configuration information of multi-carrier repeated transmission of N carriers, and further includes:

the terminal device determines the order of the N carriers in the carrier list as the use order of the N carriers.

In a possible implementation manner, when the network device or the terminal device activates SPS resources of N carriers by sending N second activation messages on N carriers, the terminal device obtains configuration information of multicarrier repeated sending of the N carriers, and further includes:

and the terminal equipment determines the activation sequence of SPS resources on the N carriers as the use sequence of the N carriers.

In a possible implementation manner, the first message further includes SPS resource information on each carrier.

The network equipment activates SPS resources by pre-configuring SPS resources on each carrier, and the interaction time delay and resource expense between the terminal equipment and the network equipment are reduced.

A second aspect of the present application provides a data receiving method, including:

the network equipment sends configuration information of N carriers to the terminal equipment, wherein the configuration information is used for repeatedly sending data on semi-persistent scheduling (SPS) resources of the N carriers, and N is more than or equal to 2;

and the network equipment receives the data sent by the terminal equipment on the N carriers.

The network device repeatedly transmits data on a plurality of carriers by configuring the terminal device, so that the reliability of data transmission is enhanced, and the resource configuration is more flexible.

In a possible implementation manner, the network device sends configuration information of N carriers to a terminal device, including:

the network device sends a first message to the terminal device, wherein the first message comprises: the carrier list comprises M carriers, wherein M is greater than or equal to N, and the first message further comprises at least one of the following information: the period information of the SPS resource of each carrier of the M carriers, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between carriers, and the repeated transmission times information of data.

In a possible implementation manner, the order of the N carriers in the carrier list is the order of use of the N carriers.

In a possible implementation manner, before the network device receives the data sent by the terminal device, the method further includes:

and the network equipment receives the activation information sent by the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

and the network equipment sends activation information to the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation manner, the method further includes:

the network device sends activation response information to the terminal device, wherein the activation response information is used for confirming that SPS resources are activated.

The network device may avoid collision of SPS resource usage of the carrier by sending the activation response information to the terminal device.

In a possible implementation manner, the network device receives activation information sent by the terminal device, including:

the network device receives N first activation messages sent by the terminal device on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

the network device receives a second activation message sent by the terminal device on a first carrier of the N carriers, where the second activation message is used to activate SPS resources on the N carriers.

In a possible implementation manner, the network device sends activation information to the terminal device, including:

and the network equipment sends N first activation messages to the terminal equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

the network device sends a second activation message to the terminal device on a first carrier of the N carriers, where the second activation message is used to activate SPS resources on the N carriers.

wherein the PDCCH of the first carrier indicates SPS resources on the N carriers; or alternatively, the process may be performed,

the PDCCH of the first carrier indicates SPS resources on the first carrier, and PDCCHs on the remaining carriers in the N carriers respectively indicate SPS resources on the remaining carriers.

A third aspect of the present application provides a data transmission apparatus comprising:

the processing module is used for acquiring configuration information of N carriers, wherein N is greater than or equal to 2, and the configuration information is used for repeatedly sending data on semi-persistent scheduling SPS resources of the N carriers;

And the sending module is used for repeatedly sending data by using the SPS resources of the N carriers according to the configuration information.

In a possible implementation manner, the processing module is specifically configured to:

receiving a first message sent by a network device, wherein the first message comprises: the carrier list comprises M carriers, wherein M is greater than or equal to N, and the first message further comprises at least one of the following information: the period information of the SPS resource of each carrier, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between carriers and the repeated sending frequency information of data.

In a possible implementation manner, the apparatus further includes:

and the receiving module is used for receiving the activation information sent by the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation manner, the sending module is further configured to:

and sending activation information to the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation manner, the apparatus further includes:

and the receiving module is used for receiving the activation response information sent by the network equipment, and the activation response information is used for confirming that the SPS resource is activated.

In a possible implementation manner, the receiving module is specifically configured to:

and receiving N first activation messages sent by the network equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

and receiving a second activation message sent by the network equipment on a first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

In a possible implementation manner, the sending module sends activation information to a network device, including:

and sending a second activation message to the network equipment by using the resources of the first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

and using the resources on the N carriers to send N first activation messages to the network equipment, wherein the N first activation messages are used for activating SPS resources on the N carriers.

In a possible implementation manner, the processing module is further configured to:

and determining the order of the N carriers in the carrier list as the use order of the N carriers.

In a possible implementation manner, when the network device or the terminal device activates SPS resources of N carriers by sending N second activation messages on N carriers, the processing module is further configured to:

And determining the activation sequence of SPS resources on the N carriers as the use sequence of the N carriers.

A fourth aspect of the present application provides a data receiving apparatus comprising:

a sending module, configured to send configuration information of N carriers to a terminal device, where the configuration information is used to repeatedly send data on SPS resources of the N carriers, where N is greater than or equal to 2;

and the receiving module is used for receiving the data sent by the terminal equipment on the N carriers.

In a possible implementation manner, the sending module is specifically configured to:

sending a first message to the terminal equipment, wherein the first message comprises: the carrier list comprises M carriers, wherein M is greater than or equal to N, and the first message further comprises at least one of the following information: the period information of the SPS resource of each carrier of the M carriers, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between carriers, and the repeated transmission times information of data.

In a possible implementation manner, the receiving module is further configured to:

and receiving activation information sent by the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

and sending activation information to the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

and sending activation response information to the terminal equipment, wherein the activation response information is used for confirming that SPS resources are activated.

and receiving N first activation messages sent by the terminal equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

and receiving a second activation message sent by the terminal equipment on a first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

and sending N first activation messages to the terminal equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

and sending a second activation message to the terminal equipment on a first carrier of the N carriers, wherein the second activation message is used for activating SPS resources on the N carriers.

A fifth aspect of the present application provides a data transmission apparatus comprising:

the processor is used for acquiring configuration information of N carriers, wherein N is greater than or equal to 2, and the configuration information is used for repeatedly sending data on semi-persistent scheduling SPS resources of the N carriers;

and the transmitter is used for repeatedly transmitting data by using SPS resources of the N carriers according to the configuration information.

In a possible implementation manner, the processor is specifically configured to:

In a possible implementation manner, the apparatus further includes:

and the receiver is used for receiving the activation information sent by the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

In a possible implementation, the transmitter is further configured to:

In a possible implementation manner, the apparatus further includes:

and the receiver is used for receiving the activation response information sent by the network equipment, and the activation response information is used for confirming that the SPS resource is activated.

In a possible implementation, the receiver is specifically configured to:

In a possible implementation manner, the transmitter transmits activation information to a network device, including:

In a possible implementation, the processor is further configured to:

In a possible implementation manner, when the network device or the terminal device activates SPS resources of N carriers by sending N second activation messages on N carriers, the processor is further configured to:

A sixth aspect of the present application provides a data receiving apparatus comprising:

a transmitter, configured to transmit configuration information of N carriers to a terminal device, where N is greater than or equal to 2, where the configuration information is used to repeatedly transmit data on SPS resources of the N carriers;

and the receiver is used for receiving the data sent by the terminal equipment on the N carriers.

In a possible implementation, the transmitter is specifically configured to:

In a possible implementation, the receiver is further configured to:

In a possible implementation, the transmitter is further configured to:

In a possible implementation, the receiver is specifically configured to:

In a possible implementation, the transmitter is specifically configured to:

The advantages brought by the data transmitting device and the data receiving device provided by the application refer to the advantages of the corresponding methods in the first aspect and the second aspect of the application, and are not repeated here.

A seventh aspect of the application provides a computer readable storage medium storing instructions that when executed cause a computer to perform a data transmission method as provided in the first aspect of the application and in each of the possible implementations.

An eighth aspect of the application provides a computer readable storage medium storing instructions that, when executed, cause a computer to perform a data receiving method as provided by the second aspect of the application and possible implementations.

A ninth aspect of the application provides a computer program product comprising instructions which, when executed, cause a computer to carry out the data transmission method provided by the first aspect of the application and the various possible implementations.

A tenth aspect of the application provides a computer program product comprising instructions which, when executed, cause a computer to perform a data receiving method as provided by the second aspect of the application and the possible implementations.

An eleventh aspect of the present application provides a communication system including the data transmitting apparatus provided in the third or fifth aspect of the present application, and the data receiving apparatus provided in the fourth and sixth aspects of the present application.

The embodiment of the application provides a data sending and receiving method and device and a storage medium, wherein the method comprises the following steps: the terminal equipment acquires configuration information of N carriers, wherein N is greater than or equal to 2, the configuration information is used for repeatedly sending data on SPS resources of the N carriers, and the terminal equipment repeatedly sends data by using the SPS resources of the N carriers according to the configuration information. According to the method, data is repeatedly sent on a plurality of carriers, some of the plurality of carriers have good communication quality, and some of the plurality of carriers have poor communication quality, so that the reliability of data transmission can be increased as a whole. And repeated transmission occupies the resources of a plurality of carriers, so that the carrier configuration is more flexible. In addition, in this embodiment, the time interval between carriers of the SPS resource may be set to be very small, so as to meet the transmission delay requirement of data.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which the present application is applicable;

FIG. 2 is a schematic diagram of a network architecture to which the present application is applicable;

fig. 3 is a flowchart of a data transmission method according to a first embodiment of the present application;

FIG. 4 is a schematic illustration of SPS resource configuration;

FIG. 5 is a schematic diagram of repeated data transmission;

Fig. 6 is a signaling flow chart of a data transmission method according to a second embodiment of the present application;

FIG. 7 is a schematic diagram of SPS resource activation via PDCCH;

FIG. 8 is another schematic diagram of activating SPS resources through PDCCH;

FIG. 9 is yet another schematic diagram of SPS resource activation through PDCCH;

FIG. 10 is yet another schematic diagram of SPS resource activation through PDCCH;

fig. 11 is a signaling flow chart of a data transmission method according to a third embodiment of the present application;

FIG. 12 is a schematic diagram of activating SPS resources by SR;

fig. 13 is a schematic diagram of a data transmitting apparatus according to a fourth embodiment of the present application;

fig. 14 is a schematic diagram of a data receiving apparatus according to a fifth embodiment of the present application;

fig. 15 is a schematic structural diagram of a data transmitting apparatus according to a sixth embodiment of the present application;

fig. 16 is a schematic structural diagram of a data receiving device according to a seventh embodiment of the present application.

Detailed Description

The application provides a data transmitting and receiving method, which can be applied to a 5G communication system, also can be applied to a long term evolution (long term evolution, LTE) communication system, and the 5G communication system is also called a New wireless communication system, a New access technology (New radio access technology, new RAT, NR) or a next generation mobile communication system.

Fig. 1 is a schematic diagram of a network architecture to which the present application is applied, and as shown in fig. 1, the network architecture includes terminal devices and a (radio) access network (radio access network, (R) AN) device, where the number of the terminal devices is not limited. The (R) AN device may be a (R) AN device in a 5G system, and the (R) AN device in the 5G system may be composed of a plurality of 5G- (R) AN nodes, and the 5G- (R) AN nodes may include: AN access network other than the third generation partnership project (3rd Generation Partnership Project,3GPP), such as AN Access Point (AP) of a wireless-fidelity (WiFi) network, a next generation base station (which may be collectively referred to as a new generation radio access network node (NG-RAN)), wherein the next generation base station includes a new air interface base station (NR node b, gNB), a new generation evolved base station (NG-NB), a transceiver point (transmission receive point, TRP), a transmission point (transmission point, TP), or other node.

Fig. 2 is a schematic diagram of a network architecture to which the present application is applicable, and as shown in fig. 2, the (R) AN device in the 5G system may further include a gNB in a Centralized Unit (CU) and a Distributed Unit (DU) separated form. One CU may control a plurality of DUs through which terminal devices may access the network.

The terminal device may be: a cell phone, a computer, but may also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a smart phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a computer, a laptop computer, a handheld communication device, a handheld computing device, a satellite radio, a wireless modem card, a television Set Top Box (STB), a car-mounted device, a wearable device, a smart home device, other devices for communicating over a wireless system, etc.

Based on the network architecture shown above, the present application provides a method for repeatedly sending data, which aims to solve the problem that in the prior art, a terminal device can only repeatedly send a TB on the same carrier, and when the communication quality of the carrier is poor, the reliability of data transmission is reduced.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following exemplary embodiments may be combined with each other and may not be described in detail in some embodiments for the same or similar concepts or processes. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application, as shown in fig. 3, the method provided in this embodiment includes the following steps:

step S101, terminal equipment acquires configuration information of N carriers, wherein N is greater than or equal to 2, and the configuration information is used for repeatedly sending data on SPS resources of the N carriers.

The configuration information includes at least one of the following parameters: the method includes the steps of using sequence information of N carriers, semi-persistent scheduling (semi-persistent scheduling, SPS) resource information of each carrier in the N carriers, period information of SPS resources of each carrier, duration information of SPS resources of each carrier, time interval information of SPS resources between carriers and repeated transmission times information of data.

The SPS resources may be physical uplink shared channel (physical uplink shared channel, PUSCH) resources, where SPS resources occur periodically, and the SPS resources may be repeatedly used through one configuration or indication, without requiring the terminal device to request PUSCH resources from the network device every time.

In addition, in the embodiment of the present application, the SPS resource may also be a physical downlink shared channel (physical downlink shared channel, PDSCH) resource, where the network device configures a downlink SPS resource, so that the network device repeatedly sends data to the terminal device, that is, the terminal device repeatedly receives, through the downlink SPS resource, data repeatedly sent by the network device.

The SPS resources may also be resources that periodically appear on other channels, and may be repeatedly used through one configuration or indication.

The order of use of the carriers, which may also be referred to as a cross-carrier mode, specifies the order in which data (which may be TBs) is repeatedly transmitted on the carriers. For example, N equals 3,3 carriers are used in the order: CC1, CC2, CC3, the terminal device uses SPS resources in the sequence of transmitting data by first jumping from CC1 to CC2, then jumping from CC2 to CC3, then jumping from CC3 to CC1, CC representing a carrier component (carrier component). Alternatively, if the terminal device supports simultaneous transmission of data on two or more carriers, the order of use of the carriers may be configured to be (CC 1, CC 2), CC3, where CC1, CC2 are transmitted simultaneously, and then jump to CC3 for transmission.

The period of SPS resources of a carrier refers to a time interval of SPS resources on the same carrier in the time domain, where the time interval may be an interval of start times of two adjacent SPS resources on the same carrier, or may be an interval of an end time of a previous SPS resource and a start time of a subsequent SPS resource. Wherein adjacent two SPS resources are not contiguous in the time domain, and are separated by at least one transmission time interval (Transmission Time Interval, TTI). Referring to fig. 5, the periodicity of SPS resources of CC1 is identified in fig. 5, in the example shown in fig. 5, each SPS resource occupies two TTIs, the start time of one SPS resource is the start time of the first TTI, the end time of one SPS resource is the end time of the second TTI, the periodicity of SPS resources on CC1 refers to the interval between the start times of two adjacent SPS resources on the same carrier, and the periodicity of SPS resources on CC1 in fig. 5 is 6 TTIs. If the periodicity of SPS resources for CC1 refers to the interval between the end time of the previous SPS resource and the start time of the next SPS resource, then the periodicity of SPS resources on CC1 in fig. 5 is 4 TTIs.

The periodicity of SPS resources for different carriers may be the same or different, and in the example shown in fig. 5, the periodicity of SPS resources for CC2 and CC3 is the same as the periodicity of SPS resources for CC1, but the start times of SPS resources are different. In the embodiment of the present application, the period information of the SPS resource of the carrier is taken as an example of the number of TTIs, where the value of the TTIs may be 1ms, 0.5ms, 0.14ms, or 0.07ms, or other time lengths. Optionally, the period information of the SPS resource may also be milliseconds (ms), seconds(s), subframes, slots (slots), mini-slots (mini-slots), orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols (Symbol), PUSCH transmission interval (transmission duration), and so on.

The SPS resource information of the carrier refers to time-frequency location information of SPS resources, which may be physical resource block (Physical Resource Block, PRB) locations, and time location information of SPS resources may be times when PUSCH resources appear. As shown in fig. 4, one system frame includes 10 subframes in a time domain and PRBs in a frequency domain, and when resources of black subframes in the figure are configured, configuration information thereof is (PRB x, system frame M subframe 2) and (PRB x, system frame m+1 subframe 2). If the resource is periodic in time, the resource time position is sub-frame number 2 of each system frame, a formula (sfn×10+sf) Mod period=offset can be used, where SFN is the system frame number (System Frame Number) and sf is the sub-frame (Subframe). At this time, since SPS resources are required for each system frame, the SPS resource Period is one system frame, i.e., 10 subframes, i.e., period=10, and since the requirement is subframe No. 2, the offset is 2, and subframes satisfying (SFN 10+sf) mod10=2 are SPS resources. In the example shown in fig. 4, the frequency domain resource is in PRB unit, the time domain resource is in subframe unit, and of course, the division of the time domain resource and the frequency domain resource is not limited to this, and the time domain resource may also be a time slot, a symbol, etc., and the frequency domain resource may also be an integer multiple of sub-carrier (sub-carrier), 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, which is not limited by the embodiment of the present application.

The duration of SPS resources of the carrier refers to the duration length of SPS resources when the SPS resources appear, and duration information of the SPS resources may be the number of TTIs, or may be milliseconds (ms), seconds(s), subframes, slots (slots), mini-slots (mini-slots), OFDM symbols, PUSCH transmission duration, etc., which are described by taking the duration information of the SPS resources as the number of TTIs in the embodiment of the present application. The duration of SPS resources for different carriers may be the same or different, e.g., the duration of SPS resources for CC1 is two TTIs and the duration of SPS resources for CC2 is 1 TTI.

The time interval between carriers of SPS resources may be the interval from the end time of SPS resources on one carrier to the start time of SPS resources on another carrier, or the interval from the start time of SPS resources on one carrier to the start time of SPS resources on another carrier. When the time interval between carriers of an SPS resource is the interval from the end time of the SPS resource on one carrier to the start time of the SPS resource on another carrier, the value of the time interval between carriers of the SPS resource is greater than or equal to 0. When the time interval between the carriers is the interval from the starting time of the SPS resource on one carrier to the starting time of the SPS resource on the other carrier, the value of the time interval between the carriers of the SPS resource is more than or equal to 0, and when the time interval is 0, the SPS resource on the two carriers simultaneously appears. The time interval information of the SPS resources between the carriers may be the number of TTIs, and the time intervals of the SPS resources between different carriers may be the same or different. For example, the time interval of SPS resources between all carriers is 0 TTI or 1 TTI, or the time interval of SPS resources between CC1 and CC2 is 1 TTI, and the time interval between CC2 and CC3 is 0. When the time interval of SPS resources is such that SPS resources on different carriers occur simultaneously, the terminal device needs to support simultaneous transmission of data on these carriers.

The number of repeated transmission of data is for the same data, and may be indicated by the total number of transmission of data on all carriers, or by the number of transmission of data on each carrier. When the number of repeated transmission of data is indicated by the total number of transmission of data on all carriers, the number of repeated transmission of data is greater than or equal to 2, for example, the number of repeated transmission of data is 2, 3, or 4. When the number of repeated transmission of data is indicated by the number of times data is transmitted on each carrier, the number of transmission times may be different for each carrier, for example, the number of transmission times on some carriers is 0, the number of transmission times on some carriers is 1, and the number of transmission times on some carriers is 2. For example, there are three carriers, each of which has a number of transmissions of 1, or the first two carriers have a number of transmissions of 2, and the last carrier has a number of transmissions of 1, or the first two carriers have a number of transmissions of 1, and the last carrier has a number of transmissions of 0.

When the period, duration, and time interval between the SPS resources of the N carriers are the same, the network device may only configure the period, duration, and time interval between the SPS resources of one set of carriers, where the period, duration, and time interval between the SPS resources of other carriers are the same as the period of the SPS resources of the carrier, and the carrier may be any carrier of the N carriers, for example, the carrier is a primary carrier. Of course, the network device may also configure the period, duration, and time interval between carriers of the SPS resource for each carrier separately.

When the periods, durations, or time intervals between carriers of the SPS resources of the N carriers are different, the network device needs to configure the periods, durations, and time intervals between carriers of the SPS resources for each carrier, respectively.

The configuration information of the N carriers may be configured by the network device to the terminal device through one signaling or message, or may be configured to the terminal device through at least two signaling or messages.

The terminal device may obtain the configuration information of the multicarrier retransmission in the following two ways.

In a first mode, the terminal device receives a first message sent by the network device, where the first message includes the configuration information. Illustratively, the first message includes: the carrier list comprises M carriers, wherein M is greater than or equal to N, and the first message further comprises at least one of the following parameters: the periodicity of the SPS resources for each carrier, the duration of the SPS resources for each carrier, the time interval between carriers for the SPS resources, and the number of repeated transmissions of data.

Optionally, the first message may further include SPS resource information of each carrier. When SPS resource information for each carrier is not included in the first message, the network device may indicate SPS resources for each carrier through a physical downlink control channel (Physical Downlink Control Channel, PDCCH).

Optionally, the number of repeated sending times of the data may be determined by the terminal device according to the number of carriers in the carrier list or the number of carriers used by the terminal device. For example, the terminal device determines that the number of repeated transmission times of the data is equal to the number of carriers in the carrier list, or the number of repeated transmission times of the data is equal to the number of carriers in the carrier list minus 1. The terminal device may also determine the number of repeated transmissions of the data according to the number of carriers in the carrier list and the duration of the SPS resource, for example, the terminal device multiplies the number of carriers in the carrier list by the duration of the SPS resource to obtain the number of repeated transmissions of the data. Alternatively, the number of repeated transmissions of data is indicated by the PDCCH.

Table one is a schematic diagram of a carrier list, and table one is as follows:

list one

CC1
	CC2
……
	CCN

In table one, the identifiers of N carriers are included, the order of the carriers may be from top to bottom, and the terminal device may determine that the order of the carriers is CC1, CC2, … …, and carrier N according to the list.

The carrier list shown in table one only includes the identifiers of N carriers, and optionally, the carrier list may further include a period of SPS resources of each carrier, a duration of SPS resources of each carrier, a time interval between carriers of SPS resources, and a number of repeated transmissions of data. Table two is another schematic diagram of a carrier list, and table two is as follows:

Watch II

In the second mode, the terminal device receives at least two configuration messages sent by the network device, where the at least two configuration messages include configuration information of multi-carrier repeated sending of N carriers.

The network device sends N second messages to the terminal device, where the N second messages are used to send configuration information of N carriers, and each second message includes configuration information of one carrier, for example, the second message includes part or all of the following information: carrier frequency information, a period of SPS resources on the carrier, a duration of SPS resources on the carrier, a time interval between SPS resources on the carrier and SPS resources on a first carrier, and a number of repeated transmissions of data on the carrier. I.e. the periodicity of the SPS resources, the duration of the SPS resources, for each carrier are configured by separate messages. The first carrier may be one of other carriers except the carrier, and the first carrier is used as a reference carrier.

Optionally, the second message may further include SPS resource information of the carrier. When the SPS resource information of the carrier is not included in the second message, the network device may indicate SPS resources of the carrier through the PDCCH.

Optionally, the number of repeated transmissions of data on the carrier is indicated by PDCCH.

Optionally, the first message and the second message are radio resource control (radio resource control, RRC) messages, which may be RRC connection reconfiguration messages (RRC connection reconfiguration). Of course, the first message and the second message may also be any messages of other types or names, which are not limited by the embodiment of the present application. Optionally, the network device may send the first message and the second message in a broadcast manner, or may send the first message and the second message through dedicated signaling.

In the embodiment of the application, the terminal equipment can default to use all carriers in the carrier list for repeated data transmission, or can only use part of carriers in the carrier list for repeated data transmission. When the terminal device defaults to use all carriers in the carrier list to perform data repeated transmission, the terminal device or the network device does not need to activate SPS resources on M carriers, and when the network device is configured to SPS resources on M carriers of the terminal device, the terminal device can use SPS resources on M carriers to perform data repeated transmission, wherein the use sequence of the M carriers can adopt the sequence of the carriers in the carrier list. Of course, the network device or the terminal device may activate SPS resources on M carriers first, and then use SPS resources on M carriers to perform data retransmission. When the terminal device only uses part of the carriers in the carrier list to perform data repeated transmission, the terminal device or the network device needs to activate the SPS resources on the carriers first to repeatedly transmit data by using the SPS resources on the carriers.

Alternatively, the network device or the terminal device may activate SPS resources on the N carriers by sending activation information to the other party.

Alternatively, the network device or the terminal device may determine the usage sequence of the N carriers in two manners: the method comprises the steps that firstly, a terminal device or a network device determines that the sequence of N carriers in a carrier list is the use sequence of N carriers; and determining that the activation sequence of SPS resources on the N carriers is the use sequence of the N carriers by the mode II, the terminal equipment or the network equipment.

Step S102, the terminal equipment repeatedly transmits data by using SPS resources on N carriers according to the configuration information.

The terminal device repeatedly transmits data according to the usage order of the N carriers, and when the terminal device repeatedly transmits data, each data or at least one data (for example, TB) is repeatedly transmitted on at least two carriers. For example, when N is equal to 3, if the number of repeated transmissions of data is 3, the duration of SPS resources on each carrier is one TTI, the order of use of 3 carriers is CC1, CC3, and CC2, and the terminal device currently has two TBs to transmit, the terminal device sequentially transmits TB1 on CC1, CC3, and CC2 in the order of use of three carriers, and sequentially transmits TB2 on CC1, CC3, and CC 2. When the number of repeated transmission times of the data is 4, the terminal device sequentially transmits the TB1 once on the CC1, the CC3, the CC2 and the CC1 according to the use sequence of the three carriers, and sequentially transmits the TB2 once on the CC3, the CC2, the CC1 and the CC 3. When the number of repeated transmission times of the data is 2, the terminal device sequentially transmits the TB1 on the CC1 and the CC3 respectively and sequentially transmits the TB2 on the CC2 and the CC1 respectively according to the use sequence of the three carriers.

When transmitting data on each carrier, the terminal equipment completes data transmission according to SPS resources of the carriers and duration time of the SPS resources, and after the data transmission on the current carrier is completed, the terminal equipment transmits data on SPS resources of the next carrier according to time intervals of the SPS resources among the carriers and use sequence of the carriers.

Fig. 5 is a schematic diagram of repeated data transmission, in the example shown in fig. 5, N has a value of 3, that is, three carriers (CC 1, CC2, CC 3) are used for repeated data transmission, the sequence of the three carriers is CC1, CC2, CC3, the period of SPS resources of each carrier is 6 TTIs, each square in fig. 5 represents one TTI, the duration of SPS resources of each carrier is 2 TTIs, the time interval between the carriers is 0 (the time interval is the interval between the end time of SPS resources on the previous carrier and the start time of SPS resources on the next carrier), and the number of repeated data transmission is 5. Referring to fig. 5, the direction of the arrow in fig. 5 indicates the transmission order of data, the terminal device transmits TB1 twice on SPS resources of CC1 (duration of SPS resources is two TTIs), then transmits TB1 twice on SPS resources of CC2, and then transmits TB1 once on SPS resources of CC3, and the TB1 transmission is completed. At this time, if the SPS resource of CC3 still has one TTI left, the terminal device uses the SPS resource remaining of CC3 to transmit TB2 once, then the terminal device uses the SPS resource of CC1 to transmit TB2 twice, and then uses the SPS resource of CC2 to transmit TB2 twice, so that the transmission of TB2 is completed. And the terminal equipment continues to send the TB3 twice by using the SPS resource of the CC3, and the like, so as to finish the data transmission.

In the prior art, a terminal device repeatedly transmits data on the same carrier, and when the communication quality of the carrier is poor, the reliability of data transmission is affected. The method of the embodiment of the application repeatedly transmits the data on the plurality of carriers, and some of the plurality of carriers have good communication quality, and some of the plurality of carriers have poor communication quality, so that the reliability of data transmission can be increased as a whole. And repeated transmission occupies the resources of a plurality of carriers, so that the carrier configuration is more flexible.

In addition, in the embodiment of the application, the time interval between the carriers of the SPS resource can be set to be very small, so that the requirement of data transmission delay can be met. For example, when the time interval of the SPS resource between carriers is 0, the repeated transmission is continuous in the time domain, so that the delay of the repeated transmission of data is reduced, and the repeated transmission can ensure the reliability of the data transmission. Taking the URLLC scenario as an example, a typical set of metrics is currently 99.999% reliability in 1 ms. When the number of repeated transmissions of data is 4, assuming that the reliability of one transmission is 95%, the reliability of 4 transmissions is 1-0.054= 99.999375%, and the reliability can meet the requirement, if the delay requirement is that 4 transmissions are completed within 1ms, when the time interval between SPS resources on one carrier is the interval from the end time of SPS resources on the other carrier to the start time of SPS resources on the other carrier, and the time interval is 0, the delay between repeated transmissions need not be considered, and only the TTI needs to be configured to be 0.14 ms. When the time interval between the SPS resources between the carriers is the interval from the start time of the SPS resources on one carrier to the start time of the SPS resources on the other carrier, and the time interval is 0, the SPS resources of the plurality of carriers occur at the same time, the terminal device can repeatedly send data on the plurality of carriers at the same time, and the TTI can take a value of 1ms at this time, so that the time of repeated data sending is reduced.

The content of the multiple repeated transmissions of the same data may be the same or different. For example, if the terminal device does not employ incremental redundancy, the content of the data transmitted on the SPS resource in the multiple repeated transmissions is the same. If the terminal device adopts the incremental redundancy technology, the content of the air interface data sent on the SPS resource in the repeated sending is different due to the fact that the redundant information of each data transmission is different, but the initial data or the useful data of the data sent repeatedly are the same.

In this embodiment, the terminal device obtains configuration information of N carriers, where N is greater than or equal to 2, where the configuration information is used to repeatedly send data on SPS resources of the N carriers, and according to the configuration information, the terminal device repeatedly sends data using SPS resources of at least two carriers on the N carriers. Therefore, the terminal equipment can repeatedly send data on a plurality of carriers, the quality of the plurality of carriers is poor, the situation is less, the reliability of data transmission is enhanced, and the resource allocation is more flexible.

Fig. 6 is a signaling flow chart of a data transmission method according to a second embodiment of the present application, where the method according to the first embodiment is illustrated by using a network device to activate SPS resources on each carrier, as shown in fig. 6, and includes the following steps:

Step S201, the network device sends a first message to the terminal device.

The first message is used for indicating configuration information of multi-carrier repeated transmission of M carriers, and specifically includes: the carrier list comprises M carriers, and the first message further comprises at least one of the following information: period information of SPS resources per carrier, duration information of SPS resources per carrier, time interval information of SPS resources between carriers, and number of repeated transmission times information of data. Optionally, the first message further includes SPS resource information of each carrier.

Step S202, the network equipment sends activation information to the terminal equipment.

The activation information is used to activate SPS resources on N carriers, N being less than or equal to M.

In one manner, the network device sends N first activation messages to the terminal device on N carriers, respectively, where the N first activation messages are used to activate SPS resources on the N carriers, respectively. Specifically, the network device sends a first activation message on each carrier, where the first activation message can only activate SPS resources on one carrier, for example, the first activation message is used to activate SPS resources on the carrier on which the first activation message is sent.

In another manner, the network device sends a second activation message to the terminal device on a first carrier of the N carriers, where the second activation message is used to activate SPS resources on the N carriers. The first carrier may be any carrier on the N carriers, the first carrier sending the second activation message may be configured by the network device, and in a carrier aggregation (Carrier Aggregation, CA) scenario, the first carrier may be a primary carrier, and the second activation message may activate SPS resources on the N carriers.

In the above two activation manners, the SPS resources of each carrier may be preconfigured by the network device to the terminal device, for example, the SPS resources of each carrier are carried in the first message. Optionally, the network device or the terminal device may send the first activation message and the second activation message in a broadcast manner, or may send the first activation message and the second activation message through dedicated signaling.

Optionally, the first activation message is carried on a PDCCH, where the PDCCH indicates SPS resources on a carrier on which the PDCCH is transmitted, and the PDCCH has a function of activating SPS resources on the carrier in addition to a function of indicating SPS resources, and the network device activates SPS resources of each carrier by transmitting the PDCCH on each carrier.

Fig. 7 is a schematic diagram showing that the SPS resource is activated by the PDCCH, in the example shown in fig. 7, the value of N is 3, that is, three carriers (CC 1, CC2, CC 3) are used for repeated data transmission, the sequence of the three carriers is CC1, CC2, CC3, the period of the SPS resource of each carrier is 6 TTIs, each square in fig. 7 represents one TTI, the duration of the SPS resource of each carrier is 1 TTI, the time interval between the carriers is 1 TTI, the number of repeated data transmission is 5, and the direction of the arrow in fig. 7 indicates the transmission sequence of the data. Each PDCCH in fig. 7 is used not only to indicate SPS resources on the carrier on which the PDCCH was transmitted, but also to activate SPS resources on the carrier on which the PDCCH was transmitted.

When the network device activates SPS resources on each carrier, the SPS resources may be specifically activated by three ways:

mode one; the network device activates SPS resources of the carrier through a medium access control element (media access control control element, MAC CE) for activating a Packet Data Convergence Protocol (PDCP) function, which is to duplicate two PDCP layer packets to transmit the PDCP layer packets through two paths, thereby improving reliability of data transmission. In the application, the MAC CE is used for activating SPS resources on the carrier wave besides activating PDCP multiplexing. After the MAC CE, the resource indicated by the PDCCH sent by the network equipment is SPS resource; or when the MAC CE transmits, the resource indicated by the PDCCH transmitted by the network equipment last time is SPS resource.

Alternatively, the MAC CE may be a MAC CE transmitted on multiple carriers, and the transmitted MAC CE on each carrier is used to activate SPS resources on that carrier. Alternatively, the MAC CE is transmitted over one carrier to activate SPS resources on all carriers configured for data retransmission associated with the PDCP repetition.

In the second mode, the network equipment activates SPS resources through an RRC message for activating PDCP multiplexing, and after the RRC message is sent, the resources indicated by PDCCH sent by the network equipment are SPS resources; or when the RRC message is sent, the resource indicated by the PDCCH sent by the network equipment last time is SPS resource. Optionally, the RRC message may also carry carrier information indicating which carriers are activated. If the RRC message does not carry the carrier information, the RRC message may activate SPS resources on all carriers configured for repeated transmission of data associated with the PDCP indication.

Mode three, the network device activates SPS resources through the PDCCH scrambled by a special C-RNTI, which may be referred to as SPS C-RNTI.

Optionally, the second activation message is carried on a PDCCH of the first carrier, where the PDCCH of the first carrier indicates SPS resources on N carriers, or the PDCCH of the first carrier indicates SPS resources on the first carrier, and PDCCHs on remaining carriers in the N carriers respectively indicate SPS resources on the remaining carriers. It should be clear that the PDDCH on the remaining carriers except the first carrier of the N carriers only has a function of indicating SPS resources, and does not have a function of activating SPS resources.

Optionally, the resource indicated by the PDCCH on the remaining carrier with the same transmission time as the PDCCH of the first carrier is an SPS resource, or the resource indicated by the PDCCH on the remaining carrier with the nearest transmission time to the PDCCH of the first carrier is an SPS resource, or the resource indicated by the PDCCH on the remaining carrier with the smallest time interval to the resource indicated by the PDCCH of the first carrier is an SPS resource.

Fig. 8 is another schematic diagram of activating SPS resources through PDCCH, where the network device sends PDCCH on CC1 only, and the PDCCH is used to indicate SPS resources on N carriers and activate SPS resources on N carriers, as shown in fig. 8. For example, the network device may scramble the PDCCH with a special C-RNTI to activate SPS resources on the N carriers.

Fig. 9 is a further schematic diagram of activating SPS resources through PDCCH, as shown in fig. 9, where the network device sends PDCCH on CC1, the PDCCH indicating SPS resources on CC1 and activating SPS resources on N carriers. For example, the network device may scramble the PDCCH with a special C-RNTI to activate SPS resources on the N carriers. The PDCCHs transmitted on CC2 and CC3 respectively indicate SPS resources on the respective carriers, unlike the function of the PDCCH on CC1, the PDCCHs on CC2 and CC3 have only the function of indicating SPS resources, but do not have the function of activating SPS resources. The resource scheduled by the PDCCH on the CC2, which is the same as the PDCCH transmission time of the CC1, is an SPS resource, and the resource scheduled by the PDCCH on the CC3, which is the nearest to the PDCCH transmission time of the CC1, is an SPS resource. It can be seen that at this time, SPS resources periodically appearing on CC2 and CC3 do not include resources indicated by PDCCH on CC2 and CC3, and only resources indicated by PDCCH on CC1 follow periodicity with SPS resources preceding the PDCCH.

Fig. 10 is a further schematic diagram of activating SPS resources through PDCCH, and as shown in fig. 10, the network device sends PDCCH on CC1, the PDCCH indicating SPS resources on CC1 and activating SPS resources on N carriers. For example, the network device may scramble the PDCCH with a special C-RNTI to activate SPS resources on the N carriers. The PDCCHs transmitted on CC2 and CC3 respectively indicate SPS resources on the respective carriers, unlike the function of the PDCCH on CC1, the PDCCHs on CC2 and CC3 have only the function of indicating SPS resources, but do not have the function of activating SPS resources. The resource indicated by the PDCCH with the smallest time interval from the resource indicated by the PDCCH of CC1 on CC2 and CC3 is the SPS resource, as shown in fig. 10, the resource indicated by the PDCCH of CC1 on CC2 is the smallest time interval of 1 TTI, and the resource indicated by the PDCCH of CC1 on CC3 is the smallest time interval of 0 TTI. Alternatively, the resource indicated by the last PDCCH before the SPS resource time configured and activated on CC2 and CC3 is SPS, and as shown in fig. 10, the SPS resource on CC2 is preceded by two PDCCHs, but the last PDCCH is the second PDCCH from the left, so the resource indicated by the second PDCCH is SPS resource.

Optionally, before step S202, the terminal device sends a scheduling request message to the network device. When the terminal equipment has data to be sent, the terminal equipment sends a scheduling request message to the network equipment, wherein the scheduling request message is used for requesting PUSCH resources. Optionally, the scheduling request message is a scheduling request (scheduling request, SR) or a buffer status report (buffer status report, BSR). And after receiving the scheduling request message sent by the terminal equipment, the network equipment sends activation information to the terminal equipment.

In step S203, the terminal device repeatedly sends data using N carriers according to the first message and the activation information.

The terminal equipment determines configuration information of multi-carrier repeated transmission of N carriers according to the first message and the activation information, wherein the configuration information comprises at least one of the following: the method comprises the steps of using sequence information of N carriers, SPS resource information of each carrier in the N carriers, period information of SPS resources of each carrier, duration information of SPS resources of each carrier, time interval information of SPS resources among the carriers and repeated sending frequency information of data.

For the usage sequence of the N carriers, the terminal device may obtain any one of the following manners: in the first aspect, the terminal device may determine that the order of the N carriers in the carrier list is the use order of the N carriers, regardless of the manner in which the network device activates the SPS resources of the N carriers by sending the N first activation messages to the terminal device on the N carriers, or the network device activates the SPS resources of the N carriers by sending the second activation messages to the first carrier of the N carriers. In the second mode, when the network device sends N first activation messages to the terminal device through N carriers to activate SPS resources of the N carriers, the terminal device may determine that an activation order of the N carriers is a use order of the N carriers.

For the SPS resource information of each carrier, when the network device activates the SPS resource of the carrier through the PDCCH, the network device may indicate the SPS resource of the carrier through the PDCCH, and in other cases, the SPS resource information of the carrier needs to be obtained from the first message.

The period information of the SPS resource of each carrier, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between the carriers and the repeated sending times information of the data are obtained from the first message.

In this embodiment, the network device sends a first message to the terminal device, where the first message carries configuration information of multi-carrier repeated transmission of N carriers, and the network device sends activation information of the N carriers to the terminal device, where the activation information is used to activate SPS resources of the N carriers, and the terminal device uses the N carriers to repeatedly send data according to the first message and the activation information. Therefore, the terminal equipment can repeatedly send data on a plurality of carriers, the quality of the plurality of carriers is poor, the situation is less, the reliability of data sending is enhanced, and the resource allocation is more flexible.

Fig. 11 is a signaling flow chart of a repeated sending method of data provided by the third embodiment of the present application, where the embodiment uses a terminal device to activate SPS resources on each carrier as an example, and as shown in fig. 11, the method provided by the embodiment includes the following steps:

Step S301, the network device sends a first message to the terminal device.

The first message includes: the carrier list comprises M carriers, and the first message further comprises at least one of the following parameters: SPS resources per carrier, periodicity of SPS resources per carrier, duration of SPS resources per carrier, time interval of SPS resources between carriers, and number of repeated transmissions of data.

Step S302, the terminal equipment sends activation information to the network equipment.

In one manner, the terminal device uses resources on N carriers to send N first activation messages to the network device, where the N first activation messages are used to activate SPS resources on the N carriers, respectively. Specifically, the terminal device sends a first activation message on each carrier, where the first activation message can only activate SPS resources on one carrier, for example, the first activation message is used to activate SPS resources on the carrier on which the first activation message is sent.

In another manner, the terminal device uses the resources of the first carrier of the N carriers to send a second activation message to the network device, where the second activation message is used to activate SPS resources on the N carriers. The first carrier may be any carrier on the N carriers, the first carrier that sends the second activation message may be configured by the network device, in a CA scenario, the first carrier may be a primary carrier, and the second activation message may activate SPS resources on the N carriers.

Optionally, the network device or the network device may send the first activation message and the second activation message in a broadcast manner, or may send the first activation message and the second activation message through dedicated signaling.

Alternatively, the first activation message and the second activation message may be SRs, or may be other signals, for example, a random access Preamble (Preamble), an uplink reference signal (Sounding Reference Signal, SRs), and the like. When the SPS resources of the carriers are activated by the terminal device, the SPS resources of each carrier are carried in a first message.

Fig. 12 is a schematic diagram showing activation of SPS resources by SR, as shown in fig. 12, the sequence of three carriers is CC1, CC2, and CC3, the period of SPS resources of each carrier is 6 TTIs, the duration of SPS resources of CC1 is 1 TTI, the duration of SPS resources of CC2 is 2 TTIs, the duration of SPS resources of CC3 is 1 TTI, the time interval between CC1 and CC2 is 1 TTI, the time interval between CC2 and CC3 is 0, and the number of repeated transmissions of data is 5. Referring to fig. 12, the resources indicated by the black boxes in fig. 12 are resources occupied by SRs, and the directions of the arrows in fig. 12 indicate the transmission order of data.

Step S303, the terminal equipment repeatedly transmits data by using N carriers according to the first message and the activation information.

For the usage sequence of the N carriers, the terminal device may obtain any one of the following manners: in the first aspect, the terminal device may determine that the order of the N carriers in the carrier list is the use order of the N carriers, regardless of the manner in which the terminal device activates the SPS resources of the N carriers by sending the N first activation messages to the network device on the N carriers, or the terminal device activates the SPS resources of the N carriers by sending the second activation message on the first carrier of the N carriers. In the second mode, when the terminal device sends N first activation messages to the network device through N carriers to activate SPS resources of the N carriers, the terminal device may determine that an activation order of the N carriers is a use order of the N carriers.

For the SPS resource information of each carrier, the period information of the SPS resource of each carrier, the duration information of the SPS resource of each carrier, the time interval information of the SPS resource between carriers, and the number of repeated transmissions of data, the terminal device needs to acquire from the first message.

In this embodiment, after the terminal device sends the activation information, the PUSCH resource on the carrier is directly used as the SPS resource to perform data transmission without waiting for feedback of the network device, and at this time, if the network device does not receive the activation information sent by the terminal device, the network device considers that the terminal device does not use the PUSCH resource on the carrier, and in fact, the terminal device is using the PUSCH resource of the carrier, so that a collision of PUSCH resource usage may be caused.

In order to avoid collision, optionally, after receiving an activation signal sent by the terminal device, the network device replies activation response information to the terminal device, where the activation response information may be a reference signal or other signals, and the activation response information may also be carried in DCI or MAC CE, and the terminal device starts to use the configured PUSCH when receiving the activation response information.

When the terminal device uses the resources on the N carriers to send N first activation messages to the network device to activate SPS resources of the N carriers, the network device may send activation response information to the terminal device on all of the N carriers, or may send activation response information to the terminal device only on L carriers, where L is smaller than N. If the terminal equipment receives the activation response information on the N carriers, determining that SPS resources on the N carriers are activated, and if the terminal equipment receives the activation response information on the L carriers only, determining that SPS resources on the L carriers are activated, and the SPS resources on the rest N-L carriers are not activated.

When the terminal device uses the resources of the first carrier wave in the N carrier waves to send a second activation message to the network device so as to activate SPS resources of the N carrier waves, the network device only sends activation response information to the terminal device on the first carrier wave, and optionally, the activation response information comprises the identification of the activated carrier wave or the identification of the unactivated carrier wave. If the terminal device receives the activation response information, determining which carriers of SPS resources are activated according to the activation response information. If the terminal device does not receive the activation response information sent by the network device, determining that none of the SPS resources of the N carriers are activated.

In this embodiment, the network device sends a first message to the terminal device, where the first message carries configuration information of multi-carrier repeated transmission of N carriers, and the terminal device sends activation information of the N carriers to the network device, where the activation information is used to activate SPS resources of the N carriers, and the terminal device uses the N carriers to repeatedly send data according to the first message and the activation information. Therefore, the terminal equipment can repeatedly send data on a plurality of carriers, the quality of the plurality of carriers is poor, the situation is less, the reliability of data sending is enhanced, and the resource allocation is more flexible.

Fig. 13 is a schematic diagram of a data transmission apparatus provided in a fourth embodiment of the present application, where the data transmission apparatus of the present embodiment may be a terminal device, or may be applied to a terminal device, as shown in fig. 13, and the apparatus provided in the present embodiment includes:

the processing module 11 is configured to obtain configuration information of N carriers, where N is greater than or equal to 2, where the configuration information is used to repeatedly send data on semi-persistent scheduling SPS resources of the N carriers;

and a sending module 12, configured to repeatedly send data using SPS resources of the N carriers according to the configuration information.

Optionally, the configuration information includes at least one of the following information: the method comprises the steps of using sequence information of N carriers, SPS resource information of each carrier in the N carriers, period information of SPS resources of each carrier, duration information of SPS resources of each carrier, time interval information of SPS resources among the carriers and repeated sending frequency information of data.

Optionally, the processing module 11 is specifically configured to:

Optionally, the apparatus further includes a receiving module 13, configured to receive activation information sent by the network device, where the activation information is used to activate SPS resources on the N carriers.

Optionally, the sending module 12 is further configured to: and sending activation information to the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

Optionally, the apparatus further includes a receiving module 13, configured to receive activation response information sent by the network device, where the activation response information is used to confirm that SPS resources are activated.

Optionally, the receiving module 13 is specifically configured to: and receiving N first activation messages sent by the network equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

Optionally, the receiving module 13 is specifically configured to: and receiving a second activation message sent by the network equipment on a first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

Optionally, the first activation message is carried on a physical downlink control channel PDCCH, where the PDCCH indicates SPS resources on a carrier on which the PDCCH is transmitted.

Optionally, the second activation message is carried on a physical downlink control channel PDCCH of the first carrier;

Optionally, the sending module 12 sends activation information to the network device, including: and sending a second activation message to the network equipment by using the resources of the first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

Optionally, the sending module 12 sends activation information to the network device, including: and using the resources on the N carriers to send N first activation messages to the network equipment, wherein the N first activation messages are used for activating SPS resources on the N carriers.

Optionally, the processing module 11 is further configured to: and determining the order of the N carriers in the carrier list as the use order of the N carriers.

Optionally, when the network device or the terminal device activates SPS resources of N carriers by sending N second activation messages on N carriers, the processing module 11 is further configured to: and determining the activation sequence of SPS resources on the N carriers as the use sequence of the N carriers.

Optionally, the first message further includes SPS resource information on each carrier.

The data sending device provided in this embodiment executes the method steps executed by the terminal device in the first embodiment to the third embodiment through the above functional module, and the specific implementation manner and the technical effect are similar, and are not repeated here.

Fig. 14 is a schematic diagram of a data receiving apparatus provided in a fifth embodiment of the present application, where the data receiving apparatus in the present embodiment may be a network device, or may be applied to a network device, as shown in fig. 14, and the apparatus provided in the present embodiment includes:

a sending module 21, configured to send configuration information of N carriers to a terminal device, where the configuration information is used to repeatedly send data on semi-persistent scheduling SPS resources of the N carriers, where N is greater than or equal to 2;

and the receiving module 22 is configured to receive data sent by the terminal device on the N carriers.

Optionally, the sending module 21 is specifically configured to:

Optionally, the order of the N carriers in the carrier list is the order of use of the N carriers.

Optionally, the receiving module 22 is further configured to: and receiving activation information sent by the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

Optionally, the receiving module 22 is further configured to: and sending activation information to the terminal equipment, wherein the activation information is used for activating SPS resources on the N carriers.

Optionally, the sending module 21 is further configured to: and sending activation response information to the terminal equipment, wherein the activation response information is used for confirming that SPS resources are activated.

Optionally, the receiving module 22 is specifically configured to: and receiving N first activation messages sent by the terminal equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

Optionally, the receiving module 22 is specifically configured to: and receiving a second activation message sent by the terminal equipment on a first carrier wave in the N carrier waves, wherein the second activation message is used for activating SPS resources on the N carrier waves.

Optionally, the sending module 21 is specifically configured to: and sending N first activation messages to the terminal equipment on the N carriers, wherein the N first activation messages are respectively used for activating SPS resources on the N carriers.

Optionally, the sending module 21 is specifically configured to: and sending a second activation message to the terminal equipment on a first carrier of the N carriers, wherein the second activation message is used for activating SPS resources on the N carriers.

The data receiving apparatus provided in this embodiment executes the method steps executed by the network device in the first embodiment to the third embodiment through the above functional module, and the specific implementation manner and the technical effect are similar, and are not repeated here.

It will be appreciated that the transmitting module and the receiving module in the above embodiments may be combined into a transceiver module and perform similar functions. And will not be described in detail here. The transmitting module, receiving module or receiving and transmitting module can be a wireless transceiver, which accomplishes corresponding functions through an antenna. The transmitting module, receiving module or receiving module may be an interface or a communication interface. The processing module in this embodiment may be implemented by a processor having a data processing function.

Fig. 15 is a schematic structural diagram of a data transmission device according to a sixth embodiment of the present application, where the data transmission device according to the present embodiment may be a terminal device or applied to a terminal device, and as shown in fig. 15, the data transmission device includes: the processor 31, the memory 32, and the transceiver 33, where the memory 32 is used to store instructions, the transceiver 33 is used to communicate with other devices, and the processor 31 is used to execute the instructions stored in the memory 32, so that the data transmitting apparatus executes the method steps executed by the terminal devices in the first to third embodiments, and detailed implementation and technical effects are similar, and are not repeated herein.

Fig. 16 is a schematic structural diagram of a data receiving apparatus according to a seventh embodiment of the present application, where the data sending apparatus of the present embodiment may be a network device, or may be applied to a network device, as shown in fig. 16, and the apparatus includes: the processor 41, the memory 42 and the transceiver 43, where the memory 42 is used to store instructions, the transceiver 43 is used to communicate with other devices, and the processor 41 is used to execute the instructions stored in the memory 42, so that the data receiving apparatus executes the method steps executed by the network devices in the first to third embodiments, and detailed implementation and technical effects are similar, and are not repeated here.

An eighth embodiment of the present application provides a computer readable storage medium, which is applied in a terminal device, where the computer readable storage medium stores instructions, and when the instructions are executed by a computing device, the instructions cause the terminal device to execute method steps executed by the terminal device in the first embodiment to the third embodiment, and detailed implementation manner and technical effects are similar, and are not repeated herein.

An embodiment of the present application provides a computer readable storage medium, which is applied to a network device, where the computer readable storage medium stores instructions, and when the instructions are executed by a computing device, the instructions cause the network device to execute method steps executed by the network device in the foregoing embodiment one to the embodiment three, and detailed implementation manners and technical effects are similar, and are not repeated herein.

An embodiment of the present application provides a communication system including the data transmitting apparatus and the data receiving apparatus provided in the above embodiments.

The processor in the various embodiments described above may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks 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 embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a Memory medium well known in the art such as random access Memory (Random Access Memory, RAM), flash Memory, read-Only Memory (ROM), programmable Read-Only Memory, or electrically erasable programmable Memory, registers, and the like. The storage medium is located in the memory 1002, and the processor 1001 reads the instructions in the memory 1002, and in combination with the hardware, performs the steps of the method described above.

The bus in accordance with the present application may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or to one type of bus.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the embodiment of the present application.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

Claims

1. A data transmission method, comprising:

the terminal equipment repeatedly sends data by using SPS resources of the N carriers according to the configuration information;

the configuration information includes: the use sequence information of the N carriers, the SPS resource information of each carrier in the N carriers, the duration information of the SPS resource of each carrier and the time interval information of the SPS resource among the carriers;

The terminal device repeatedly sending data by using SPS resources of the N carriers according to the configuration information comprises the following steps:

when any carrier of the N carriers transmits data, the terminal equipment completes the data transmission according to the SPS resource information of the carrier and the duration time of the SPS resource of the carrier; after the data transmission on the carriers is completed, the terminal equipment transmits the data on the SPS resource of the next carrier according to the time interval between the carriers of the SPS resource and the using sequence information of N carriers.

2. The method of claim 1, wherein the configuration information further comprises at least one of: and the period information of the SPS resource of each carrier and the repeated sending frequency information of the data are described.

3. The method according to claim 1 or 2, wherein the terminal device obtains configuration information of N carriers, including:

4. A method according to any one of claims 1-3, further comprising:

5. The method of claim 4, wherein the terminal device receives activation information sent by a network device, comprising:

6. The method of claim 4, wherein the terminal device receives activation information sent by a network device, comprising:

7. The method according to any one of claims 3-6, wherein the terminal device obtains configuration information of multicarrier retransmission of N carriers, further comprising:

8. The method according to claim 5, wherein the terminal device obtains configuration information of multicarrier retransmission of N carriers, further comprising:

9. A data receiving method, comprising:

the network equipment sends configuration information of N carriers to the terminal equipment, wherein the configuration information is used for the terminal equipment to repeatedly send data on semi-persistent scheduling (SPS) resources of the N carriers, and N is more than or equal to 2;

the terminal device repeatedly sending data on the semi-persistent scheduling SPS resources of the N carriers includes: when any carrier of the N carriers transmits data, the terminal equipment completes the data transmission according to the SPS resource information of the carrier and the duration time of the SPS resource of the carrier; after the data transmission on the carrier wave is completed, the terminal equipment transmits the data on the SPS resource of the next carrier wave according to the time interval between the carrier waves of the SPS resource and the using sequence information of N carrier waves;

10. The method according to claim 9, wherein the network device sending configuration information of N carriers to the terminal device comprises:

11. The method of claim 10, wherein the order of the N carriers in the carrier list is the order of use of the N carriers.

12. The method according to any of claims 9-11, wherein the network device further comprises, prior to receiving the data sent by the terminal device on the N carriers:

13. The method of claim 12, wherein the network device sending activation information to the terminal device comprises:

14. The method of claim 12, wherein the network device sending activation information to the terminal device comprises:

15. A data transmission apparatus, comprising:

a transceiver for repeatedly transmitting data using SPS resources of the N carriers according to the configuration information;

The transceiver is specifically configured to, when any one of the N carriers transmits data, complete data transmission by the terminal device according to SPS resource information of the carrier and duration of SPS resources of the carrier; after the data transmission on the carriers is completed, the terminal equipment transmits the data on the SPS resource of the next carrier according to the time interval between the carriers of the SPS resource and the using sequence information of N carriers.

16. The apparatus of claim 15, wherein the configuration information comprises at least one of: the method comprises the steps of using sequence information of N carriers, SPS resource information of each carrier in the N carriers, period information of SPS resources of each carrier, duration information of SPS resources of each carrier, time interval information of SPS resources among the carriers and repeated sending frequency information of data.

17. The apparatus according to claim 15 or 16, wherein the processor obtains configuration information for multicarrier retransmission of N carriers, comprising:

18. The apparatus of any of claims 15-17, wherein the transceiver is further configured to:

and receiving activation information sent by the network equipment, wherein the activation information is used for activating SPS resources on the N carriers.

19. The apparatus of claim 18, wherein the transceiver is specifically configured to:

20. The apparatus of claim 18, wherein the transceiver is specifically configured to:

21. The apparatus of any one of claims 17-20, wherein the processor is further configured to:

22. The apparatus of claim 19, wherein the processor is further configured to:

23. A data receiving apparatus, comprising

A transceiver, configured to send configuration information of N carriers to a terminal device, where the configuration information is used by the terminal device to repeatedly send data on semi-persistent scheduling SPS resources of the N carriers, where N is greater than or equal to 2;

the transceiver is further configured to receive data sent by the terminal device on the N carriers.

24. The apparatus of claim 23, wherein the transceiver is configured to:

25. The apparatus of claim 23 or 24, wherein the transceiver is further configured to:

26. The apparatus of claim 25, wherein the transceiver is specifically configured to:

27. The apparatus of claim 25, wherein the transceiver is specifically configured to:

28. A computer readable storage medium storing instructions that, when executed, cause a computer to perform the data transmission method of any one of claims 1-8.

29. A computer readable storage medium storing instructions that, when executed, cause a computer to perform the data receiving method of any one of claims 9-14.