WO2019157682A1

WO2019157682A1 - Data transmitting and receiving method and apparatus, and storage medium

Info

Publication number: WO2019157682A1
Application number: PCT/CN2018/076777
Authority: WO
Inventors: 王宏; 柴丽; 张戬; 唐珣
Original assignee: 华为技术有限公司
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2019-08-22
Also published as: CN111713154A; CN111713154B

Abstract

Embodiments of the present application provide a data transmitting and receiving method and apparatus, and a storage medium. The method comprises: a terminal device acquiring configuration information of N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly transmit data on SPS resources of the N carriers; and the terminal device repeatedly transmitting, according to the configuration information, the data by using the SPS resources on the N carriers. In the method, data is repeatedly transmitted on a plurality of carriers, and some of the plurality of carriers have good communication quality, while some have poor communication quality, thereby increasing the overall reliability of data transmission. Furthermore, by repeatedly transmitting resources that occupy multiple carriers, carrier configuration is more flexible. Additionally, in the embodiments, a time interval of SPS resources between carriers can be set as a short interval, thereby satisfying transmission delay requirements of data.

Description

Data transmitting and receiving method and device, storage medium

Technical field

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

Background technique

With the development of wireless communication technologies and the expansion of application scenarios, for example, the fifth-generation mobile communication (5th-generation, 5G) system supports enhanced mobile broadband (eMBB) services and high-reliability low-latency communication (ultra reliable). And low latency communications, URLLC) services and mass machine type communications (mMTC) services, business needs tend to diversify. Among them, the URLLC service has extremely high requirements for reliability and delay. A typical set of URLLC services is: 99.999% reliability of data transmission within 1ms.

In the Long Term Evolution (LTE) system, uplink data or downlink data (transmission block, TB in the physical layer data) must be separated by at least 8 transmission time intervals from the initial transmission to the retransmission (Transmission Time Interval). , TTI). Currently, the typical value of the TTI is 1 ms. To meet the delay requirement of the URLLC service, the terminal device needs to send the data successfully within one TTI. However, the highest reliability of the data once sent is 95%, which cannot satisfy the reliability of the URLLC service. Sexual requirements. If the retransmission method is adopted, the delay requirement of the URLLC service cannot be satisfied because the next retransmission is after 8 ms. In addition, TTI also supports 0.14ms (that is, one-seventh) and 0.5ms. Under this condition, retransmission still cannot meet the delay requirement of URLLC service.

Currently, in an LTE system and an NR system, a terminal device can only repeatedly transmit TBs on the same carrier. When the communication quality of the carrier is not good, the reliability of data transmission is affected, and repeated transmissions occupy the same carrier, resulting in resource configuration. not flexible.

Summary of the invention

The present application provides a data transmitting and receiving method and apparatus, and a storage medium, so that the terminal device can repeatedly transmit data on multiple carriers, which enhances data reliability and makes resource configuration more flexible.

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

The terminal device acquires configuration information of the N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on the semi-persistent scheduling SPS resources of the N carriers;

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

The terminal device enhances the reliability of data transmission by repeatedly transmitting data on multiple carriers, and makes resource configuration more flexible.

In a possible implementation, the configuration information includes at least one of the following information: usage sequence information of the N carriers, SPS resource information of each of the N carriers, and each carrier The periodic information of the SPS resources, the duration information of the SPS resources of each carrier, the time interval information of the SPS resources between the carriers, and the repeated transmission times of the data.

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

Receiving, by the terminal device, the first message sent by the network device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes At least one of the following information: 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 information of repeated transmission times of data.

In a possible implementation manner, the method further includes:

The terminal device receives activation information sent by the network device, and the activation information is used to activate SPS resources on the N carriers.

In a possible implementation manner, the method further includes:

The terminal device sends activation information to the network device, where the activation information is used to activate SPS resources on the N carriers.

In a possible implementation manner, the method further includes:

The terminal device receives activation response information sent by the network device, and the activation response information is used to confirm that the SPS resource is activated.

When the SPS resources of the N carriers are activated by the terminal device, the network device can avoid the conflict of the SPS resource usage of the carrier by transmitting the activation response information to the terminal device.

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

The terminal device receives N first activation messages sent by the network device on the N carriers, and the N first activation messages are used to activate SPS resources on the N carriers, respectively.

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 an SPS resource on the N carriers.

The network device activates the SPS resource on the N carriers by sending an activation message, which reduces 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, and the PDCCH indicates an SPS resource on a carrier that sends the PDCCH.

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 an SPS resource on the N carriers, or the PDCCH of the first carrier indicates an SPS resource on the first carrier, and the remaining carriers in the N carriers The PDCCH indicates the SPS resources on the remaining carriers, respectively.

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

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

The terminal device activates the SPS resource on the N carriers by sending an activation message, which reduces the resource overhead of the activation message.

The terminal device sends N first activation messages to the network device by using resources on the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers.

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

The terminal device determines that the order of the N carriers in the carrier list is an order of use of the N carriers.

In a possible implementation manner, when the network device or the terminal device sends the N second activation messages to activate the SPS resources of the N carriers by using the N carriers, the terminal device acquires the multiple carriers of the N carriers. The configuration information sent repeatedly includes:

The terminal device determines an activation order of the SPS resources on the N carriers as an order of use of the N carriers.

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

The network device triggers the activation of the SPS resource by pre-configuring the SPS resource on each carrier, which reduces the interaction delay and resource overhead between the terminal device and the network device.

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

The network device sends the configuration information of the N carriers to the terminal device, where the configuration information is used to repeatedly send data on the semi-persistent scheduling SPS resources of the N carriers, where N is greater than or equal to 2;

The network device receives data sent by the terminal device on the N carriers.

The network device repeatedly transmits data on multiple carriers by configuring the terminal device, which enhances the reliability of data transmission and makes resource configuration more flexible.

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

The network device sends a first message to the terminal device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message is further At least one of the following information is included: period information of SPS resources of each of the M carriers, duration information of SPS resources of each carrier, time interval information of SPS resources between carriers, and data The number of repeated transmissions.

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

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

The network device receives activation information sent by the terminal device, where the activation information is used to activate SPS resources on the N carriers.

The network device sends activation information to the terminal device, where the activation information is used to activate 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, and the activation response information is used to confirm that the SPS resource is activated.

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

In a possible implementation, the receiving, by the network device, the activation information sent by the terminal device includes:

The network device receives N first activation messages sent by the terminal device on the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.

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 an SPS resource on the N carriers.

In a possible implementation, the sending, by the network device, the activation information to the terminal device includes:

The network device sends N first activation messages to the terminal device on the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.

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

The PDCCH of the first carrier indicates an SPS resource on the N carriers; or

The PDCCH of the first carrier indicates an SPS resource on the first carrier, and the PDCCH on the remaining carriers of the N carriers respectively indicate an SPS resource on the remaining carrier.

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

The third aspect of the present application provides a data sending apparatus, including:

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

And a sending module, configured to repeatedly send 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:

And receiving, by the network device, the first message, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes the following information. At least one of: 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 information of repeated transmission times of data.

In a possible implementation, the device further includes:

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

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

Sending activation information to the network device, the activation information being used to activate SPS resources on the N carriers.

In a possible implementation, the device further includes:

And a receiving module, configured to receive activation response information sent by the network device, where the activation response information is used to confirm that the SPS resource is activated.

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

Receiving N first activation messages sent by the network device on the N carriers, where the N first activation messages are respectively used to activate SPS resources on the N carriers.

Receiving, by the network device, a second activation message sent on a first one of the N carriers, where the second activation message is used to activate an SPS resource on the N carriers.

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

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

Sending N first activation messages to the network device by using resources on the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers.

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

Determining the order of the N carriers in the carrier list is an order of use of the N carriers.

In a possible implementation, when the network device or the terminal device sends the N second activation messages to activate the SPS resources of the N carriers by using the N carriers, the processing module is further configured to:

Determining an activation order of the SPS resources on the N carriers is an order of use of the N carriers.

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

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

And a receiving module, configured to receive data sent by the terminal device on the N carriers.

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

Sending a first message to the terminal device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes the following information. At least one of: period information of SPS resources of each of the M carriers, duration information of SPS resources of each carrier, time interval information of SPS resources between carriers, and number of repeated transmissions of data information.

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

Receiving activation information sent by the terminal device, where the activation information is used to activate SPS resources on the N carriers.

Sending activation information to the terminal device, the activation information being used to activate SPS resources on the N carriers.

Sending activation response information to the terminal device, the activation response information being used to confirm that the SPS resource is activated.

And receiving, by the terminal device, N first activation messages sent by the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.

Receiving, by the terminal device, a second activation message sent on a first carrier of the N carriers, where the second activation message is used to activate an SPS resource on the N carriers.

Transmitting, by the N carriers, N first activation messages to the terminal device, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.

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

The PDCCH of the first carrier indicates an SPS resource on the N carriers; or

A fifth aspect of the present application provides a data sending apparatus, including:

a processor, configured to acquire configuration information of N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on a semi-persistent scheduling SPS resource of the N carriers;

And a transmitter, configured to repeatedly send data by using the 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, the device further includes:

And a receiver, configured to receive activation information sent by the network device, where the activation information is used to activate SPS resources on the N carriers.

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

In a possible implementation, the device further includes:

And a receiver, configured to receive activation response information sent by the network device, where the activation response information is used to confirm that the SPS resource is activated.

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

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

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

In a possible implementation, when the network device or the terminal device sends the N second activation messages to activate the SPS resources of the N carriers by using the N carriers, the processor is further configured to:

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

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

And a receiver, configured to receive data sent by the terminal device on the N carriers.

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

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

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

The PDCCH of the first carrier indicates an SPS resource on the N carriers; or

For the beneficial effects of the data transmitting apparatus and the data receiving apparatus provided by the present application, reference is made to the beneficial effects of the corresponding methods in the first aspect and the second aspect of the present application, and details are not described herein again.

A seventh aspect of the present application provides a computer readable storage medium storing instructions that, when executed, cause a computer to perform data as provided by the first aspect of the present application and various possible implementations Send method.

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

A ninth aspect of the present application provides a computer program product, comprising: instructions, when executed, causing a computer to perform a data transmission method provided by the first aspect of the present application and each possible implementation.

A tenth aspect of the present 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 present application and the various possible implementations.

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

The method and device for transmitting and receiving data and the storage medium provided by the embodiments of the present application include: the terminal device acquires configuration information of N carriers, where N is greater than or equal to 2, and the configuration information is used for N carriers. The data is repeatedly transmitted on the SPS resource, and the terminal device repeatedly transmits data using the SPS resources of the N carriers according to the configuration information. The method repeats transmitting data on multiple carriers, and some of the multiple carriers have good communication quality, and some carriers have poor quality communication quality, and generally can increase the reliability of data transmission. And repeatedly transmitting resources occupying multiple carriers, so that the carrier configuration is more flexible. In addition, in this embodiment, the time interval between the SPS resources in the carrier can be set small, so that the transmission delay requirement of the data can be satisfied.

DRAWINGS

1 is a schematic diagram of a network architecture to which the present application applies;

2 is a schematic diagram of a network architecture to which the present application applies;

3 is a flowchart of a data sending method according to Embodiment 1 of the present application;

4 is a schematic diagram of SPS resource configuration;

Figure 5 is a schematic diagram of data repeated transmission;

FIG. 6 is a signaling flowchart of a data sending method according to Embodiment 2 of the present application;

FIG. 7 is a schematic diagram of activating SPS resources through a PDCCH;

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

FIG. 9 is still another schematic diagram of activating SPS resources by using a PDCCH;

FIG. 10 is still another schematic diagram of activating SPS resources by using a PDCCH;

FIG. 11 is a signaling flowchart of a data sending method according to Embodiment 3 of the present application;

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

FIG. 13 is a schematic diagram of a data sending apparatus according to Embodiment 4 of the present application;

FIG. 14 is a schematic diagram of a data receiving apparatus according to Embodiment 5 of the present application; FIG.

FIG. 15 is a schematic structural diagram of a data sending apparatus according to Embodiment 6 of the present application;

FIG. 16 is a schematic structural diagram of a data receiving apparatus according to Embodiment 7 of the present application.

Detailed ways

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

FIG. 1 is a schematic diagram of a network architecture applicable to the present application. As shown in FIG. 1 , the network architecture includes a terminal device and a radio access network (R) AN device, and the number of terminal devices. No restrictions. 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, which may include : Access networks of the 3rd Generation Partnership Project (3GPP), such as access points (APs) of wireless-fidelity (WiFi) networks, and next-generation base stations (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 transmission receive point (TRP), A transmission point (TP) or other node. The (R) AN device may also be an evolved NodeB (eNB), an AP, or a relay station in an LTE system.

2 is a schematic diagram of a network architecture applicable to the present application. As shown in FIG. 2, the (R)AN device in the 5G system may further include a centralized unit (CU) and a distributed unit (DU). Separated form of gNB. One CU can control multiple DUs, and the terminal device can access the network through the DU.

The terminal device may be: a mobile phone, a computer, or a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a wireless local loop (WLL) station, a personal digital assistant. (personal digital assistant, PDA), computer, laptop, handheld communication device, handheld computing device, satellite wireless device, wireless modem card, set top box (STB), in-vehicle device, wearable device, Smart home devices, other devices used to communicate on wireless systems, and the like.

Based on the network architecture shown above, the present application provides a method for repeatedly transmitting data, which is to solve the problem that the terminal device can only repeatedly send TBs on the same carrier in the prior art, and when the communication quality of the carrier is not good, the data is The problem of reduced reliability of transmission.

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

FIG. 3 is a flowchart of a data sending method according to Embodiment 1 of the present application. As shown in FIG. 3, the method provided in this embodiment includes the following steps:

Step S101: The terminal device acquires configuration information of N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on SPS resources of the N carriers.

The configuration information includes at least one of the following parameters: usage order information of N carriers, semi-persistent scheduling (SPS) resource information of each of the N carriers, and period of SPS resources of each carrier Information, duration information of SPS resources per carrier, time interval information between SPS resources in carriers, and information on the number of repeated transmissions of data.

The SPS resource may be a physical uplink shared channel (PUSCH) resource, and the SPS resource periodically appears. The SPS resource may be repeatedly used by using one configuration or indication, and the terminal device is not required to request the network device every time. PUSCH resources.

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

The SPS resource may also be a resource that periodically appears on other channels, and may be repeatedly used by one configuration or indication. The specific channel in which the SPS resource is located is not limited in this embodiment.

The order in which carriers are used may also be referred to as a cross-carrier mode, and the order of use of carriers specifies the order in which data (which may be TB) is repeated on the carrier. For example, if N is equal to 3, and the order of use of the three carriers is: CC1, CC2, and CC3, the order in which the terminal device uses the SPS resource when transmitting data is to first jump from CC1 to CC2, then jump from CC2 to CC3, and then Jumping from CC3 to CC1, CC represents the carrier component. Alternatively, if the terminal device supports transmitting data simultaneously on two or more carriers, the order of use of the carriers may be configured as (CC1, CC2), CC3, where CC1 and CC2 are simultaneously transmitted, and then jumped to CC3 for transmission.

The period of the SPS resource of the carrier refers to the time interval of the SPS resource on the same carrier in the time domain, and the time interval may be the interval between the start time of two adjacent SPS resources on the same carrier, or may be the previous SPS resource. The interval between the end time and the start time of the next SPS resource. The two adjacent SPS resources are discontinuous in the time domain, and at least one Transmission Time Interval (TTI) is separated. Referring to FIG. 5, the period of the SPS resource of CC1 is identified in FIG. 5. In the example shown in FIG. 5, each SPS resource occupies two TTIs, and the start time of one SPS resource is the start time of the first TTI. The end time of an SPS resource is the end time of the second TTI. The period of the SPS resource on the CC1 is the interval between the start times of two adjacent SPS resources on the same carrier. The period of the SPS resource on CC1 in Figure 5 is 6. TTI. If the period of the SPS resource of CC1 refers to the interval between the end time of the previous SPS resource and the start time of the next SPS resource, the period of the SPS resource on CC1 in FIG. 5 is 4 TTIs.

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

The SPS resource information of the carrier refers to the time-frequency location information of the SPS resource, the frequency location information of the SPS resource may be a physical resource block (PRB) location, and the time location information of the SPS resource may be the time when the PUSCH resource appears. As shown in FIG. 4, the time domain is in units of subframes, one system frame includes 10 subframes, and the frequency domain is in units of PRBs. When configuring resources of black subframes in the figure, the configuration information is (PRB x, System frame M subframe 2) and (PRB x, system frame M+1 subframe 2). If the resource is periodic in time and the resource time position is subframe 2 of each system frame, the formula (SFN×10+sf) Mod period=offset may be used, where SFN is the system frame number (System Frame Number). ), sf is a subframe. At this time, since each system frame is required to have SPS resources, the SPS resource period is one system frame, that is, 10 subframes, that is, Period=10, because the requirement is subframe 2, the offset is 2, which satisfies (SFN). 10+sf) Mod 10=2 subframes are all SPS resources. The SPS resource information of different carriers is different. In the example shown in FIG. 4, the frequency domain resource is in units of PRB, and the time domain resource is in units of subframes. Of course, the division of time domain resources and frequency domain resources is not limited thereto. The domain resource may also be a time slot, a symbol, or the like. The frequency domain resource may also be a sub-carrier, an integer multiple of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz, which is not limited in this embodiment.

The duration of the SPS resource of the carrier refers to the duration of the SPS resource. The duration information of the SPS resource may be the number of TTIs, or may be milliseconds (ms), seconds (s), subframes, and times. Slot, mini-slot, OFDM symbol, PUSCH transmission duration, etc., in the embodiment of the present application, the duration information of the SPS resource is taken as an example of the number of TTIs. The durations of the SPS resources of different carriers may be the same or different. For example, the duration of the SPS resources of CC1 is two TTIs, and the duration of the SPS resources of CC2 is one TTI.

The time interval between SPS resources in the carrier may be the interval from the end time of the SPS resource on one carrier to the start time of the SPS resource on the other carrier, or may be the start time of the SPS resource on one carrier to another carrier. The interval between the start times of the SPS resources. When the time interval between the SPS resources in the carrier is the interval between the end time of the SPS resource on one carrier and the start time of the SPS resource on the other carrier, the time interval of the SPS resource between the carriers is greater than or Equal to 0. When the time interval between the SPS resources in the carrier is the interval from the start time of the SPS resource on one carrier to the start time of the SPS resource on the other carrier, the time interval of the SPS resource between the carriers is greater than or Equal to 0. When the time interval is 0, it indicates that the SPS resources on the two carriers appear at the same time. 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 SPS resource has a time interval of 0 TTI or 1 TTI between all carriers, or the SPS resource has a time interval of 1 TTI between CC1 and CC2, and the time interval between CC2 and CC3 is 0. When the time interval of the SPS resources causes the SPS resources on different carriers to occur at the same time, the terminal device needs to support the simultaneous transmission of data on these carriers.

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

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

When the period, the duration of the SPS resources of the N carriers, or the time interval between the carriers are different, the network device needs to separately configure the period, the duration, and the time interval between the carriers for each carrier.

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

Exemplarily, the terminal device can obtain configuration information of multi-carrier repeated transmission in the following two manners.

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

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

Optionally, the number of times the data is repeatedly sent 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. In this embodiment, the terminal device may use all or part of carriers in the carrier list. The data is sent repeatedly. For example, the terminal device determines that the number of repeated transmissions of data is equal to the number of carriers in the carrier list, or that the number of repeated data transmissions is equal to the number of carriers in the carrier list minus one. The terminal device may further determine the number of repeated transmissions of data according to the number of carriers in the carrier list and the duration of the SPS resource. For example, the terminal device uses the number of carriers in the carrier list multiplied by the duration of the SPS resource to obtain the number of repeated transmissions of data. . Alternatively, the number of repeated transmissions of data is indicated by the PDCCH.

Table 1 is a schematic diagram of a carrier list, and Table 1 is as follows:

Table I

CC1CC1
CC2CC2
……......
CCNCCN

In Table 1, the identifiers of the N carriers are included, and the order of the carriers may be from top to bottom. The terminal device may determine the order of the carriers as CC1, CC2, ..., carrier N according to the list.

The carrier list shown in Table 1 includes only the identifiers of the N carriers. Optionally, the carrier list may also include the period of the SPS resources of each carrier, the duration of the SPS resources of each carrier, and the SPS resources between the carriers. Interval and the number of times the data is sent repeatedly. Table 2 is another schematic diagram of the carrier list, and Table 2 is as follows:

Table II

Manner 2: 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 transmission of the N carriers.

Exemplarily, the network device sends N second messages to the terminal device, where the N second messages are used to send configuration information of the N carriers, and each second message includes configuration information of one carrier, for example, the second message. Include some or all of the following information: carrier frequency information, the period of the SPS resource on the carrier, the duration of the SPS resource on the carrier, and the SPS resource on the carrier and the SPS resource on the first carrier The time interval and the number of repeated transmissions of data on this carrier. That is, the period of the SPS resource of each carrier and the duration of the SPS resource are configured by separate messages. The first carrier may be one of the other carriers except the carrier, and the first carrier is used as the 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 the SPS resource of the carrier through the PDCCH.

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

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

In the embodiment of the present application, the terminal device may use the all carriers in the carrier list to perform repeated data transmission by default, or may use only some carriers in the carrier list to perform repeated data transmission. When the terminal device uses all the carriers in the carrier list to perform repeated data transmission, the terminal device or the network device may not need to activate the SPS resources on the M carriers. When the network device is configured to the SPS resources on the M carriers of the terminal, The data may be repeatedly transmitted using the SPS resources on the M carriers, wherein the order of use of the M carriers may be in the order of the carriers in the carrier list. Of course, the network device or the terminal device may also activate the SPS resources on the M carriers first, and then use the SPS resources on the M carriers to perform repeated data transmission. When the terminal device uses only part of the carriers in the carrier list for data repetition, the terminal device or the network device needs to activate the SPS resources on the carrier before the data can be repeatedly transmitted using the SPS resources on the carrier.

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

Optionally, the network device or the terminal device may determine the order of use of the N carriers in the following two manners: mode 1. The terminal device or the network device determines the order in which the N carriers are in the carrier list, and the order of use of the N carriers is 2. The terminal device or the network device determines that the activation order of the SPS resources on the N carriers is the order in which the N carriers are used.

Step S102: The terminal device repeatedly transmits data by using SPS resources on the N carriers according to the configuration information.

The terminal device repeatedly transmits data according to the order of use 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. Exemplarily, when N is equal to 3, if the number of repeated transmissions of data is 3, the duration of the SPS resources on each carrier is one TTI, and the order of use of the three carriers is CC1, CC3, CC2, and the terminal device currently has When two TBs are to be transmitted, the terminal device sequentially transmits TB1 once on CC1, CC3, and CC2 in the order of use of the three carriers, and then transmits TB2 once in each of CC1, CC3, and CC2. When the number of repeated transmissions of data is 4, the terminal device sequentially transmits TB1 once on CC1, CC3, CC2, and CC1 according to the order of use of the three carriers, and then sends TB2 once in CC3, CC2, CC1, and CC3. . When the number of times of repeated transmission of data is 2, the terminal device sequentially transmits TB1 once on CC1 and CC3 in the order of use of the three carriers, and then sequentially transmits TB2 once on CC2 and CC1.

When transmitting data on each carrier, the terminal device completes data transmission according to the SPS resource of the carrier and the duration of the SPS resource. After the data transmission on the current carrier is completed, the terminal device according to the time interval between the carriers of the SPS resource and The order of use of the carriers is to transmit data on the SPS resources of the next carrier.

FIG. 5 is a schematic diagram of data repeated transmission. In the example shown in FIG. 5, the value of N is 3, that is, three carriers (CC1, CC2, and CC3) are used for data repetition, and the order of three carriers is CC1. , CC2, CC3, the period of the SPS resources of each carrier is 6 TTIs, each square in Figure 5 represents one TTI, the duration of SPS resources of each carrier is 2 TTIs, and the SPS resources are between carriers The time interval is 0 (the interval is the interval between the end time of the SPS resource on the previous carrier and the start time of the SPS resource on the next carrier), and the number of repeated transmissions of the data is 5. Referring to FIG. 5, the direction of the arrow in FIG. 5 indicates the order in which data is transmitted. The terminal device first transmits TB1 twice on the SPS resource of CC1 (the duration of the SPS resource is two TTIs), and then on the SPS resource of CC2. TB1 is sent twice, then TB1 is sent once on the SPS resource of CC3, and TB1 transmission is completed. At this time, if there is one TTI remaining in the SPS resource of the CC3, the terminal device sends the TB2 once using the remaining SPS resources of the CC3. Then, the terminal device sends the TB2 twice using the SPS resource of the CC1, and then sends the TB2 twice using the SPS resource of the CC2. At this point, the TB2 transmission is completed. The terminal device continues to use the SPS resource of CC3 to send TB3 twice, and so on, to complete the data transmission.

In the prior art, the terminal device repeatedly transmits data on the same carrier. When the communication quality of the carrier is not good, the reliability of the data transmission may be affected. In the method of the embodiment of the present application, by repeatedly transmitting data on multiple carriers, some carriers of the multiple carriers have good communication quality, and some carriers have poor quality communication quality, and generally can increase the reliability of data transmission. And repeatedly transmitting resources occupying multiple carriers, so that the carrier configuration is more flexible.

In addition, in the embodiment of the present application, the time interval between the SPS resources in the carrier can be set small, so that the transmission delay requirement of the data can be met. For example, when the time interval between SPS resources is 0, multiple repeated transmissions are continuous in the time domain, thereby reducing the delay of repeated data transmission, and repeated transmissions can ensure the reliability of data transmission. . Take the URLLC scenario as an example. Currently, a typical set of indicators is 99.999% reliability in 1ms. When the number of repeated transmissions of data is 4, assuming that the reliability of one transmission is 95%, the reliability of four transmissions is 1-0.054=99.999375%, and the reliability can meet the requirement. If the delay requires 4 transmissions in 1 ms. Internally, when the time interval between SPS resources in the carrier is the interval from the end time of the SPS resource on one carrier to the start time of the SPS resource on the other carrier, and the time interval is 0, there is no need to consider repeated transmission. The delay between the two, only need to configure the TTI to 0.14ms. When the time interval between the SPS resources in the carrier is the interval from the start time of the SPS resource on one carrier to the start time of the SPS resource on the other carrier, and the time interval is 0, the SPS resources of the multiple carriers are the same. When the time occurs, the terminal device can repeatedly send data on multiple carriers at the same time. In this case, the value of the TTI can be 1 ms, thereby reducing the time for repeated data transmission.

It should be noted that the content of multiple repetitions of the same data may be the same or different. For example, if the terminal device does not adopt the incremental redundancy technology, the content of the data sent on the SPS resource in the repeated transmission 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 multiple repeated transmissions is different because the redundant information of each data transmission is different, but the initial data is repeatedly sent. The data or useful data is the same.

In this embodiment, the terminal device acquires configuration information of the N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on the SPS resources of the N carriers, and the terminal device uses N according to the configuration information. The SPS resources of at least two carriers on the carrier repeatedly transmit data. Therefore, the terminal device can repeatedly transmit data on multiple carriers, and the quality of the multiple carriers is poor, thereby enhancing the reliability of data transmission and making the resource configuration more flexible.

On the basis of the first embodiment, FIG. 6 is a signaling flowchart of a data sending method according to Embodiment 2 of the present application. This embodiment uses a network device to activate SPS resources on each carrier as an example, as shown in FIG. 6 . The method provided in this embodiment includes the following steps:

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

The first message is used to indicate the configuration information of the multi-carrier repeated transmission of the M carriers. Specifically, the first message includes: a carrier list, where the carrier list includes M carriers, where the first message further includes the following information. At least one: 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 information of repeated transmission times of data. Optionally, the first message further includes SPS resource information of each carrier.

Step S202: The network device sends activation information to the terminal device.

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

In one mode, the network device sends N first activation messages to the terminal device on the N carriers, and the N first activation messages are respectively used to activate the SPS resources on the N carriers. Specifically, the network device sends a first activation message on each carrier, and the first activation message can only activate the SPS resource on one carrier. For example, the first activation message is used to activate the SPS on the carrier that sends the first activation message. Resources.

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

In the above two activation modes, the SPS resources of each carrier may be pre-configured 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 by using a broadcast manner, or may send the first activation message and the second activation message by using dedicated signaling.

Optionally, the first activation message is carried on the PDCCH, where the PDCCH indicates the SPS resource on the carrier that sends the PDCCH. The PDCCH has the function of activating the SPS resource on the carrier in addition to the function of the SPS resource, and the network device passes each The PDCCH is transmitted on the carriers to activate the SPS resources of the respective carriers.

FIG. 7 is a schematic diagram of activating SPS resources by using a PDCCH. In the example shown in FIG. 7, the value of N is 3, that is, three carriers (CC1, CC2, and CC3) are used for data repetition, and the order of three carriers is used. For CC1, CC2, and CC3, the period of SPS resources of each carrier is 6 TTIs. Each square in Figure 7 represents one TTI, and the duration of SPS resources of each carrier is 1 TTI, and the SPS resources are in carrier. The time interval between each is 1 TTI, and the number of repeated transmissions of data is 5, and the direction of the arrow in Fig. 7 indicates the order in which data is transmitted. Each PDCCH in FIG. 7 is used not only to indicate an SPS resource on a carrier that transmits a PDCCH, but also to activate an SPS resource on a transmit PDCCH carrier.

When the network device activates the SPS resource on each carrier, the SPS resource can be activated in the following three ways:

Mode 1; the network device activates the SPS resource of the carrier by using a media access control control element (MAC CE) for activating the Packet Data Convergence Protocol duplication (PDCP duplication) function, PDCP Duplication refers to the reliability of data transmission by copying two PDCP layer data packets to send PDCP layer data packets through two paths. In this application, the MAC CE is used to activate SPS resources on the carrier in addition to activating PDCP duplication. After the MAC CE, the resource indicated by the PDCCH sent by the network device is an SPS resource; or, when the MAC CE is sent, the resource that the network device sends the PDCCH indicated last time is an SPS resource.

Optionally, the MAC CE may be a MAC CE sent on multiple carriers, and the sent MAC CE on each carrier is used to activate the SPS resource on the carrier. Alternatively, the MAC CE is transmitted over a carrier to activate SPS resources on all carriers configured to repeatedly transmit data associated with the PDCP duplication.

In the second mode, the network device activates the SPS resource by using the RRC message for activating the PDCP duplication. After the RRC message is sent, the resource indicated by the PDCCH sent by the network device is an SPS resource; or, when the RRC message is sent, the network device is recently The resource indicated by the PDCCH at one time is an SPS resource. Optionally, the RRC message may also carry carrier information for indicating which carriers are activated. If the RRC message does not carry the carrier information, the RRC message may activate all SPS resources on the carrier configured to repeatedly transmit data associated with the PDCP duplication.

Manner 3: The network device activates the SPS resource by using a PDCCH scrambled by a special C-RNTI, and the special C-RNTI may be referred to as an SPS C-RNTI.

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

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

FIG. 8 is another schematic diagram of activating SPS resources by using a PDCCH. As shown in FIG. 8, the network device only transmits a PDCCH on CC1, which is used to indicate SPS resources on N carriers, and activates SPS on N carriers. Resources. Exemplarily, the network device may scramble the PDCCH through a special C-RNTI to activate SPS resources on the N carriers.

FIG. 9 is still another schematic diagram of activating SPS resources by using a PDCCH. As shown in FIG. 9, the network device sends a PDCCH on CC1, where the PDCCH is used to indicate SPS resources on CC1, and SPS resources on N carriers are activated. Exemplarily, the network device may scramble the PDCCH through a special C-RNTI to activate SPS resources on the N carriers. The PDCCHs transmitted on CC2 and CC3 respectively indicate the SPS resources on the respective carriers. Different from the function of the PDCCH on CC1, the PDCCHs on CC2 and CC3 only have the function of indicating the SPS resources, but do not have the function of activating the SPS resources. The resource of the PDCCH scheduling that is the same as the PDCCH transmission time of the CC1 on the CC2 is the SPS resource, and the resource of the PDCCH scheduling that is the closest to the transmission time of the PDCCH of the CC1 on the CC3 is the SPS resource. It can be seen that, at this time, the periodically occurring SPS resources on the CC2 and the CC3 do not include the resources indicated by the PDCCH on the CC2 and the CC3, and only the resources indicated by the PDCCH on the CC1 and the SPS resources before the PDCCH follow the periodicity.

FIG. 10 is still another schematic diagram of activating SPS resources by using a PDCCH. As shown in FIG. 10, a network device sends a PDCCH on CC1, which is used to indicate SPS resources on CC1, and activates SPS resources on N carriers. Exemplarily, the network device may scramble the PDCCH through a special C-RNTI to activate SPS resources on the N carriers. The PDCCHs transmitted on CC2 and CC3 respectively indicate the SPS resources on the respective carriers. Different from the function of the PDCCH on CC1, the PDCCHs on CC2 and CC3 only have the function of indicating the SPS resources, but do not have the function of activating the SPS resources. The resources indicated by the PDCCH with the smallest PDCCH in the time domain are the SPS resources. The resources indicated by the PDCCH on the CC2 and the PDCCH indicated by the CC1 are separated by a minimum of one in the time domain. The TTI, the resource indicated by the PDCCH with CC1 on CC3 is separated by a minimum of 0 TTIs in the time domain. Or, the resource indicated by the last PDCCH before the SPS resource time configured and activated on CC2 and CC3 is SPS. As shown in FIG. 10, there are two PDCCHs before the SPS resource on CC2, but the most recent PDCCH is from the left. The second PDCCH, so the resource indicated by the second PDCCH is an SPS resource.

Optionally, before step S202, the terminal device sends a scheduling request message to the network device. When the terminal device has data to send, the terminal device sends a scheduling request message to the network device, where the scheduling request message is used to request the PUSCH resource. Optionally, the scheduling request message is a scheduling request (SR) or a buffer status report (BSR). After receiving the scheduling request message sent by the terminal device, the network device sends the activation information to the terminal device.

Step S203: The terminal device repeatedly transmits data by using N carriers according to the first message and the activation information.

The terminal device determines configuration information of multi-carrier repeated transmission of the N carriers according to the first message and the activation information, where the configuration information includes at least one of: usage sequence information of N carriers, and SPS resources of each carrier of the N carriers Information, period information of SPS resources per carrier, duration information of SPS resources per carrier, time interval information of SPS resources between carriers, and information of repeated transmission times of data.

For the order of use of the N carriers, the terminal device may obtain the following manner: mode 1, regardless of which manner the network device passes (the network device sends N first activation messages to the terminal device on the N carriers, The SPS resources of the N carriers are activated, or the network device activates the SPS resources of the N carriers by transmitting the second activation message on the first carrier of the N carriers to activate the SPS resources of the N carriers, and the terminal device can determine the N The order of the carriers in the carrier list is the order of use of the N carriers. Manner 2: When the network device sends N first activation messages to the terminal device through the N carriers to activate the SPS resources of the N carriers, the terminal device may determine that the activation order of the N carriers is the order of use 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. In other cases, the SPS resource information of the carrier needs to be acquired from the first message.

The period information of the SPS resources of each carrier, the duration information of the SPS resources of each carrier, the time interval information of the SPS resources between the carriers, and the information of the repeated transmission times 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 multiple carriers that are repeatedly transmitted by the N carriers, and the network device sends activation information of the N carriers to the terminal device, where the activation information is used. The SPS resources of the N carriers are activated, and the terminal device repeatedly transmits data using N carriers according to the first message and the activation information. Therefore, the terminal device can repeatedly transmit data on multiple carriers, and the quality of the multiple carriers is poor, thereby enhancing the reliability of data transmission and making the resource configuration more flexible.

On the basis of the first embodiment, FIG. 11 is a signaling flowchart of a method for repeatedly transmitting data according to Embodiment 3 of the present application. This embodiment uses a terminal device to activate SPS resources on each carrier as an example, as shown in FIG. 11 . As shown, the method provided in this embodiment includes the following steps:

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

The first message includes: a carrier list, where the carrier list includes M carriers, and the first message further includes at least one of the following parameters: an SPS resource of each carrier, a period of each SPS resource of each carrier, and each The duration of the SPS resource of the carrier, the time interval between the SPS resources in the carrier, and the number of repeated transmissions of data.

Step S302: The terminal device sends the activation information to the network device.

In one mode, the terminal device sends N first activation messages to the network device by using resources on the N carriers, where the N first activation messages are used to activate the SPS resources on the N carriers. Specifically, the terminal device sends a first activation message on each carrier, and the first activation message can only activate the SPS resource on one carrier. For example, the first activation message is used to activate the SPS on the carrier that sends the first activation message. Resources.

Alternatively, the terminal device sends a second activation message to the network device by using the resource of the first carrier of the N carriers, and the second activation message is used to activate the SPS resource on the N carriers. The first carrier may be any one of the N carriers, and the first carrier that sends the second activation message may be configured by the network device. In the CA scenario, the first carrier may be the primary carrier, and the second activation message may be Activate SPS resources on N carriers.

Optionally, the network device or the network device may send the first activation message and the second activation message by using a broadcast manner, and may also send the first activation message and the second activation message by using dedicated signaling.

Optionally, the first activation message and the second activation message may be an SR, or may be other signals, for example, a random access preamble (Preamble), an uplink reference signal (Sounding Reference Signal, SRS), or the like. When the SPS resource of the carrier is activated by the terminal device, the SPS resource of each carrier is carried in the first message.

FIG. 12 is a schematic diagram of activating SPS resources by SR. As shown in FIG. 12, the order of three carriers is CC1, CC2, and CC3, and the period of SPS resources of each carrier is 6 TTIs, and the SPS resources of CC1 are continued. The time 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 of SPS resources between CC1 and CC2 is 1 TTI, and the SPS resources are in CC2 The time interval between CC3 and CC3 is 0, and the number of repeated transmissions of data is 5. Referring to FIG. 12, the resource indicated by the black square in FIG. 12 is the resource occupied by the SR, and the direction of the arrow in FIG. 12 indicates the order in which the data is transmitted.

Step S303: The terminal device repeatedly transmits data by using N carriers according to the first message and the activation information.

For the order of use of the N carriers, the terminal device may obtain the following manner: mode 1, regardless of which manner the terminal device uses (the terminal device sends N first activation messages to the network device by using the N carriers) The SPS resources of the N carriers are activated, or the terminal device activates the SPS resources of the N carriers by transmitting the second activation message on the first carrier of the N carriers to activate the SPS resources of the N carriers, and the terminal device can determine the N. The order of the carriers in the carrier list is the order of use of the N carriers. Manner 2: When the terminal device sends the N first activation messages to the network device to activate the SPS resources of the N carriers, the terminal device may determine that the activation sequence of the N carriers is the order of use of the N carriers.

SPS resource information for each carrier, period information of SPS resources per carrier, duration information of SPS resources per carrier, time interval information between SPS resources in carriers, and repeated transmission times of data, terminal device Need to get from the first message.

In this embodiment, after the terminal device sends the activation information, the PUSCH resource on the carrier is directly sent as the SPS resource without the feedback of the network device. 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, but the terminal device is actually using the PUSCH resource of the carrier, which may cause conflicts in the use of the PUSCH resource.

In order to avoid the occurrence of the conflict, the network device may, after receiving the activation signal sent by the terminal device, reply the activation response information to the terminal device, where the activation response information may be a reference signal or other signal, and the activation response information may also be carried in the In the DCI or MAC CE, the terminal device starts to use the configured PUSCH only when receiving the activation response information.

When the terminal device sends the N first activation messages to the network device by using the resources on the N carriers to activate the SPS resources of the N carriers, the network device may send the activation response information to the terminal device on the N carriers, or The activation response information is sent to the terminal device only on L carriers, and L is smaller than N. If the terminal device receives the activation response information on the N carriers, it is determined that the SPS resources on the N carriers are activated. If the terminal device receives the activation response information only on the L carriers, determining the L carriers. The SPS resources on the above are activated, and the SPS resources on the remaining NL carriers are not activated.

When the terminal device sends the second activation message to the network device by using the resource of the first carrier on the N carriers to activate the SPS resource of the N carriers, the network device sends the activation response information only to the terminal device on the first carrier. Optionally, the activation response information includes an identifier of the activated carrier or an identifier of the unactivated carrier. If the terminal device receives the activation response information, it is determined according to the activation response information which SPS resources of the carriers are activated. If the terminal device does not receive the activation response information sent by the network device, it is determined that the SPS resources of the N carriers are not activated.

In this embodiment, the network device sends a first message to the terminal device, where the first message carries configuration information of multiple carriers that are repeatedly transmitted by the N carriers, and the terminal device sends the activation information of the N carriers to the network device, where the activation information is used. The SPS resources of the N carriers are activated, and the terminal device repeatedly transmits data using N carriers according to the first message and the activation information. Therefore, the terminal device can repeatedly transmit data on multiple carriers, and the quality of the multiple carriers is poor, thereby enhancing the reliability of data transmission and making the resource configuration more flexible.

FIG. 13 is a schematic diagram of a data sending apparatus according to Embodiment 4 of the present application. The data sending apparatus in this embodiment may be a terminal device, or may be applied to a terminal device. As shown in FIG. 13, the apparatus provided in this embodiment includes:

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

The sending module 12 is configured to repeatedly send data by using the SPS resources of the N carriers according to the configuration information.

Optionally, the configuration information includes at least one of the following information: usage sequence information of the N carriers, SPS resource information of each of the N carriers, and SPS resources of each carrier. The period information, the duration information of the SPS resources of each carrier, the time interval information of the SPS resources between the carriers, and the information of the repeated transmission times of the data.

Optionally, the processing module 11 is specifically configured to:

Optionally, the device 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: send, to the network device, activation information, where the activation information is used to activate SPS resources on the N carriers.

Optionally, the device 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 the SPS resource is activated.

Optionally, the receiving module 13 is specifically configured to: receive N first activation messages sent by the network device on the N carriers, where the N first activation messages are used to activate the N SPS resources on the carrier.

Optionally, the receiving module 13 is specifically configured to: receive 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 the N SPS resources on the carrier.

Optionally, the first activation message is carried on a physical downlink control channel PDCCH, and the PDCCH indicates an SPS resource on a carrier that sends the PDCCH.

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

Optionally, the sending, by the sending module 12, the sending, by using the resource of the first carrier of the N carriers, a second activation message, where the second activation message is used, The SPS resources on the N carriers are activated.

Optionally, the sending, by the sending module 12, the sending, by using the resources on the N carriers, N first activation messages, where the N first activation messages are used, The SPS resources on the N carriers are activated.

Optionally, the processing module 11 is further configured to: determine an order in which the N carriers are in the carrier list is an order of use of the N carriers.

Optionally, when the network device or the terminal device sends the N second activation messages to activate the SPS resources of the N carriers by using the N carriers, the processing module 11 is further configured to: determine the N carriers. The order of activation of the SPS resources is the order of use of the N carriers.

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

The data transmitting apparatus provided in this embodiment performs the method steps performed by the terminal device in the foregoing Embodiments 1 to 3 through the foregoing functional modules. The specific implementation manners and technical effects are similar, and details are not described herein again.

14 is a schematic diagram of a data receiving apparatus according to Embodiment 5 of the present application. The data receiving apparatus in this embodiment may be a network device, or may be applied to a network device. As shown in FIG. 14, the apparatus provided in this embodiment includes:

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

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 an order of use of the N carriers.

Optionally, the receiving module 22 is further configured to: receive activation information sent by the terminal device, where the activation information is used to activate SPS resources on the N carriers.

Optionally, the receiving module 22 is further configured to: send, to the terminal device, activation information, where the activation information is used to activate an SPS resource on the N carriers.

Optionally, the sending module 21 is further configured to: send activation response information to the terminal device, where the activation response information is used to confirm that the SPS resource is activated.

Optionally, the receiving module 22 is specifically configured to: receive N first activation messages sent by the terminal device on the N carriers, where the N first activation messages are used to activate the N SPS resources on the carrier.

Optionally, the receiving module 22 is specifically configured to: receive 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 the N SPS resources on the carrier.

Optionally, the sending module 21 is specifically configured to: send, by using the N carriers, N first activation messages to the terminal device, where the N first activation messages are used to activate the N carriers, respectively. SPS resources on.

Optionally, the sending module 21 is specifically configured to: send 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 the N carriers SPS resources on.

The PDCCH of the first carrier indicates an SPS resource on the N carriers; or

The data receiving apparatus provided in this embodiment performs the method steps performed by the network device in the foregoing Embodiments 1 to 3 through the foregoing functional modules, and the specific implementation manners and technical effects are similar, and details are not described herein again.

It can be understood that the transmitting module and the receiving module in the above embodiments can be combined into a transceiver module and perform similar functions. I won't go into details here. The sending module, the receiving module or the transceiver module may be a wireless transceiver, which performs corresponding functions through an antenna. The sending module, the receiving module or the transceiver module may also be an interface or a communication interface. The processing module in this embodiment can be implemented by a processor having a data processing function.

FIG. 15 is a schematic structural diagram of a data sending apparatus according to Embodiment 6 of the present application. The data sending apparatus in this embodiment may be a terminal device or applied to a terminal device. As shown in FIG. 15, the data sending device includes: a processor 31 for storing instructions, the transceiver 33 for communicating with other devices, and a processor 31 for executing instructions stored in the memory 32, The data transmitting apparatus is configured to perform the method steps performed by the terminal device in the foregoing Embodiments 1 to 3, and the specific implementation manners and technical effects are similar, and details are not described herein again.

16 is a schematic structural diagram of a data receiving apparatus according to Embodiment 7 of the present application. The data sending apparatus of this embodiment may be a network device or applied to a network device. As shown in FIG. 16, the device includes: a processor. 41. A memory 42 for storing instructions, said transceiver 42 for communicating with other devices, said processor 41 for executing instructions stored in said memory 42 to cause The data receiving apparatus performs the method steps performed by the network device in the foregoing Embodiments 1 to 3, and the specific implementation manners and technical effects are similar, and details are not described herein again.

Embodiment 8 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, when the instructions are executed by a computing device, causing the terminal device to perform the implementation as described above The method steps performed by the terminal device in the first embodiment to the third embodiment are similar to the technical solutions, and are not described here.

Embodiment 9 of the present application provides a computer readable storage medium, which is applied in a network device, where the computer readable storage medium stores instructions that, when executed by a computing device, cause the network device to perform the implementation as described above The method steps performed by the network device in the first embodiment to the third embodiment are similar to the technical solutions, and are not described here.

The tenth embodiment of the present application provides a communication system, which includes the data transmitting apparatus and the data receiving apparatus provided in the foregoing embodiments.

In the foregoing embodiments, the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA). Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read only memory or an electrically erasable programmable memory, a register, etc. In the storage medium. The storage medium is located in the memory 1002, and the processor 1001 reads the instructions in the memory 1002 and completes the steps of the above method in combination with its hardware.

The bus described in this application may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or 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 device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

Claims

A data sending method, comprising:

The terminal device acquires configuration information of the N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on the semi-persistent scheduling SPS resources of the N carriers;

The terminal device repeatedly transmits data by using the SPS resources of the N carriers according to the configuration information.
The method according to claim 1, wherein the configuration information comprises at least one of: information on usage order of the N carriers, SPS resource information of each of the N carriers, The period information of the SPS resources of each carrier, the duration information of the SPS resources of each carrier, the time interval information of the SPS resources between the carriers, and the information of the repeated transmission times of the data.
The method according to claim 1 or 2, wherein the acquiring, by the terminal device, the configuration information of the N carriers comprises:

Receiving, by the terminal device, the first message sent by the network device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes At least one of the following information: 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 information of repeated transmission times of data.
The method according to any one of claims 1 to 3, further comprising:

The terminal device receives activation information sent by the network device, and the activation information is used to activate SPS resources on the N carriers.
The method according to claim 4, wherein the receiving, by the terminal device, the activation information sent by the network device comprises:

The terminal device receives N first activation messages sent by the network device on the N carriers, and the N first activation messages are used to activate SPS resources on the N carriers, respectively.
The method according to claim 4, wherein the receiving, by the terminal device, the activation information sent by the network device comprises:

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 an SPS resource on the N carriers.
The method according to any one of claims 3-6, wherein the terminal device acquires the configuration information of the multi-carrier retransmission of the N carriers, and further includes:

The terminal device determines that the order of the N carriers in the carrier list is an order of use of the N carriers.
The method according to claim 5, wherein the acquiring, by the terminal device, the configuration information of the multi-carrier retransmission of the N carriers, further includes:

The terminal device determines an activation order of the SPS resources on the N carriers as an order of use of the N carriers.
A data transmission receiving method, comprising:

The network device sends configuration information of the N carriers to the terminal device, where the configuration information is used to repeatedly send data on the semi-persistent scheduling SPS resources of the N carriers, where N is greater than or equal to 2;

The network device receives data sent by the terminal device on the N carriers.
The method according to claim 9, wherein the network device sends configuration information of the N carriers to the terminal device, including:

The network device sends a first message to the terminal device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message is further At least one of the following information is included: period information of SPS resources of each of the M carriers, duration information of SPS resources of each carrier, time interval information of SPS resources between carriers, and data The number of repeated transmissions.
The method according to claim 10, wherein the order of the N carriers in the carrier list is an order of use of the N carriers.
The method according to any one of claims 9 to 11, wherein before the network device receives the data sent by the terminal device on the N carriers, the method further includes:

The network device sends activation information to the terminal device, where the activation information is used to activate SPS resources on the N carriers.
The method according to claim 12, wherein the sending, by the network device, the activation information to the terminal device comprises:

The network device sends N first activation messages to the terminal device on the N carriers, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.
The method according to claim 12, wherein the sending, by the network device, the activation information to the terminal device comprises:

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

a processor, configured to acquire configuration information of N carriers, where N is greater than or equal to 2, and the configuration information is used to repeatedly send data on a semi-persistent scheduling SPS resource of the N carriers;

And a transceiver, configured to repeatedly send data by using the SPS resources of the N carriers according to the configuration information.
The apparatus according to claim 15, wherein the configuration information comprises at least one of: usage order information of the N carriers, SPS resource information of each of the N carriers, The period information of the SPS resources of each carrier, the duration information of the SPS resources of each carrier, the time interval information of the SPS resources between the carriers, and the information of the repeated transmission times of the data.
The device according to claim 15 or 16, wherein the processor acquires configuration information of multi-carrier repeated transmission of N carriers, including:

And receiving, by the network device, the first message, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes the following information. At least one of: 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 information of repeated transmission times of data.
The device according to any one of claims 15-17, wherein the transceiver is further configured to:

Receiving activation information sent by the network device, the activation information being used to activate SPS resources on the N carriers.
The device according to claim 18, wherein the transceiver is specifically configured to:

Receiving N first activation messages sent by the network device on the N carriers, where the N first activation messages are respectively used to activate SPS resources on the N carriers.
The device according to claim 18, wherein the transceiver is specifically configured to:

Receiving, by the network device, a second activation message sent on a first one of the N carriers, where the second activation message is used to activate an SPS resource on the N carriers.
The device according to any one of claims 17 to 20, wherein the processor is further configured to:

Determining the order of the N carriers in the carrier list is an order of use of the N carriers.
The device according to claim 19, wherein the processor is further configured to:

Determining an activation order of the SPS resources on the N carriers is an order of use of the N carriers.
A data receiving device, characterized by comprising

The transceiver is configured to send configuration information of the N carriers to the terminal device, where the configuration information is used to repeatedly send data on the 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.
The device according to claim 23, wherein the transceiver is specifically configured to:

Sending a first message to the terminal device, where the first message includes: a carrier list, where the carrier list includes M carriers, where M is greater than or equal to N, and the first message further includes the following information. At least one of: period information of SPS resources of each of the M carriers, duration information of SPS resources of each carrier, time interval information of SPS resources between carriers, and number of repeated transmissions of data information.
The device according to claim 23 or 24, wherein the transceiver is further configured to:

Sending activation information to the terminal device, the activation information being used to activate SPS resources on the N carriers.
The device according to claim 25, wherein the transceiver is specifically configured to:

Transmitting, by the N carriers, N first activation messages to the terminal device, where the N first activation messages are used to activate SPS resources on the N carriers, respectively.
The device according to claim 25, wherein the transceiver is specifically configured to:

Sending a second activation message to the terminal device on the first carrier of the N carriers, where the second activation message is used to activate SPS resources on the N carriers.
A computer readable storage medium, characterized in that the computer readable storage medium stores instructions that, when executed, cause a computer to perform the data transmission method according to any one of claims 1-8.
A computer readable storage medium, characterized in that the computer readable storage medium stores instructions that, when executed, cause a computer to perform the data receiving method according to any one of claims 9-14.