WO2022206360A1 - 一种降低时延的方法、装置、终端及设备 - Google Patents

一种降低时延的方法、装置、终端及设备 Download PDF

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Publication number
WO2022206360A1
WO2022206360A1 PCT/CN2022/080718 CN2022080718W WO2022206360A1 WO 2022206360 A1 WO2022206360 A1 WO 2022206360A1 CN 2022080718 W CN2022080718 W CN 2022080718W WO 2022206360 A1 WO2022206360 A1 WO 2022206360A1
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WIPO (PCT)
Prior art keywords
carrier
dci
pdcp
group
transmission
Prior art date
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PCT/CN2022/080718
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English (en)
French (fr)
Inventor
苗金华
皮埃尔
谌丽
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP22778544.1A priority Critical patent/EP4319014A1/en
Publication of WO2022206360A1 publication Critical patent/WO2022206360A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/115—Grant-free or autonomous transmission

Definitions

  • the present disclosure relates to the field of mobile communication technologies, and in particular, to a method, apparatus, terminal, and device for reducing time delay.
  • the network side activates/deactivates the configuration authorization by sending (Downlink Control Information, DCI), and activates/deactivates it by means of the Media Access Control Control Element (MAC CE) Deactivate the replication duplication transport.
  • DCI Downlink Control Information
  • MAC CE Media Access Control Control Element
  • a user terminal (User Equipment, UE) has a certain delay in decoding the MAC CE, which will lead to the problem of increased service transmission delay.
  • UE User Equipment
  • the embodiments of the present disclosure provide a method, apparatus, terminal, and device for reducing the delay, so as to solve the problem that the service transmission delay increases in the prior art by using the MAC CE mode to perform service transmission to a certain extent.
  • an embodiment of the present disclosure provides a method for reducing latency, which is applied to a terminal, including:
  • the activation/deactivation configuration authorizes CG and Packet Data Convergence Protocol (PDCP) replication transmission.
  • PDCP Packet Data Convergence Protocol
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP duplication and transmission according to the DCI include:
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI including:
  • the method further includes:
  • Receive first signaling where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the carrier group ID indicated by the DCI and the carrier group ID Mapping relations.
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the DCI and the second signaling activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and execute the CG on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission of the data radio bearer
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • an embodiment of the present disclosure further provides a method for reducing latency, which is applied to a network device, including:
  • the downlink control information DCI is sent to the terminal, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the method further includes:
  • the method further includes:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor:
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • the activation/deactivation configuration authorizes CG and Packet Data Convergence Protocol (PDCP) replication transmission.
  • PDCP Packet Data Convergence Protocol
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP duplication and transmission according to the DCI include:
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI including:
  • the processor is also used for:
  • Receive first signaling where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the carrier group ID indicated by the DCI and the carrier group ID Mapping relations.
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the DCI and the second signaling activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and execute the CG on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission of the data radio bearer
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor:
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • the downlink control information DCI is sent to the terminal, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the processor is also used for:
  • the processor is also used for:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • an embodiment of the present disclosure further provides an apparatus for reducing delay, which is applied to a terminal, including:
  • a first receiving module configured to receive downlink control information DCI
  • the first processing module is configured to activate/deactivate the configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the first processing module includes:
  • a first processing unit configured to activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI according to the DCI, and perform PDCP on the carrier corresponding to the carrier ID/carrier group ID Copy transfer.
  • the first processing module includes:
  • a second processing unit configured to deactivate, according to the DCI, the CG and PDCP duplicate transmission on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI;
  • the third processing unit is configured to deactivate CG and PDCP duplicate transmission on all carriers according to the DCI.
  • an embodiment of the present disclosure further provides an apparatus for reducing latency, which is applied to network equipment, including:
  • the first sending module is configured to send downlink control information DCI to the terminal according to the terminal reporting capability, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to perform the above-mentioned reduction applied to a terminal.
  • the terminal activates/deactivates the configuration authorization CG and the PDCP replication transmission according to the received downlink control information DCI, which can quickly activate/deactivate the PDCP replication transmission and reduce the service transmission delay.
  • FIG. 2 is a schematic diagram of a configuration authorization type 2 data transmission process in the prior art
  • FIG. 4 is one of the flowcharts of the steps of the method for reducing delay provided by an embodiment of the present disclosure
  • FIG. 5 is the second flowchart of the steps of the method for reducing delay provided by the embodiment of the present disclosure
  • FIG. 6 is one of the structural block diagrams of the apparatus for reducing delay provided by an embodiment of the present disclosure
  • FIG. 7 is a second structural block diagram of an apparatus for reducing delay provided by an embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 9 is a structural block diagram of a network device provided by an embodiment of the present disclosure.
  • Figure 10 schematically shows a block diagram of a computing processing device for performing methods according to the present disclosure.
  • Figure 11 schematically shows a memory unit for holding or carrying program code implementing the method according to the present disclosure.
  • the term "and/or" describes the association relationship of associated objects, and indicates that there can be three kinds of relationships. For example, A and/or B can indicate that A exists alone, A and B exist at the same time, and B exists alone these three situations.
  • the character “/” generally indicates that the associated objects are an "or" relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • the embodiments of the present application provide a method, apparatus, terminal and device for reducing delay, which can quickly activate/deactivate PDCP replication transmission and reduce service transmission delay.
  • the method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.
  • the technical solutions provided in the embodiments of the present application may be applicable to various systems, especially 5G systems.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • general packet Wireless service general packet Radio service
  • GPRS general packet Wireless service
  • long term evolution long term evolution
  • LTE LTE
  • the terminal involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
  • the name of the terminal may be different.
  • the terminal may be called user equipment (User Equipment, UE).
  • a wireless terminal can communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and computers with mobile terminals, which may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices, for example, which exchange language and/or data with the wireless access network.
  • Core Network Core Network
  • RAN Radio Access Network
  • a wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, A remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device) are not limited in the embodiments of the present application.
  • the network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal.
  • the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal through one or more sectors on an air interface, or other names.
  • the network equipment can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal and the rest of the access network, which may include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application.
  • a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
  • One or more antennas can be used between the network device and the terminal to perform multiple input multiple output (Multi Input Multi Output, MIMO) transmission, and the MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO ( Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.
  • Duplication transmission means that for a bearer, the network device will configure it with multiple Radio Link Control (RLC) entities, and the Packet Data Convergence Protocol (PDCP) entity will assign a PDCP protocol to it.
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • the data unit (Protocol Data Unit, PDU) is copied into multiple copies and submitted to multiple RLC entities at the same time, in order to improve the reliability of data transmission.
  • PDCP represents the Packet Data Convergence Protocol entity
  • RLC primary represents the primary RLC entity
  • RLC secondary represents the secondary RLC entity
  • primary LCH represents the primary logical channel
  • secondary LCH represents the secondary logical channel
  • the primary RLC entity refers to the primary RLC entity A logical channel (Logical Channel, LCH)
  • the corresponding second RLC entity refers to a second logical channel, and there may be multiple second logical channels.
  • URLLC Ultra Reliable Low Latency Communications
  • the network device will configure the RLC entity of duplication in advance.
  • the network device will trigger duplication by sending MAC CE.
  • the MAC CE is carried on the physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH).
  • PDSCH Physical Downlink Shared CHannel
  • PDCCH Physical Downlink Control Channel
  • the terminal After receiving the physical downlink control channel (Physical Downlink Control Channel, PDCCH), the terminal needs to decode and find the PDSCH corresponding to the terminal, so as to decode Data in the PDSCH, thereby decoding the MAC CE, thereby determining that the MAC CE is to activate/deactivate the PDCP duplication transmission, thereby performing the activation/deactivation of the PDCP duplication transmission. It can be seen that there is a certain delay in receiving the MAC CE relative to receiving the DCI.
  • New Radio New Radio
  • NR New Radio
  • the size of the data packets is relatively fixed, and the time interval between the data packets also satisfies a certain regularity.
  • VoIP Voice over Internet Protocol
  • NR introduces a scheduling method of Configured grant type 2 in the uplink (Up Link, UL).
  • the configuration is performed through radio resource control (Radio Resource Control, RRC) signaling, and the RRC signaling specifies the period for configuring grant type 2.
  • RRC Radio Resource Control
  • Configure authorization type 2 by allocating the corresponding modulation and coding scheme (Modulation Coding Scheme, MCS), resource location and other information on the PDCCH, and activate the configuration authorization type 2.
  • MCS Modulation Coding Scheme
  • the terminal saves the corresponding information and repeats it in the subsequent scheduling period use.
  • the gNB can also reallocate corresponding resources for transmission through the PDCCH.
  • the configuration grant type 2 is finally released through the indication of the PDCCH.
  • the configuration authorization type 2 data sending process can be shown in Figure 2.
  • the network device configures the configuration authorization of the configuration authorization type 2 through RRC, and activates it through DCI.
  • the terminal sends the configuration authorization MAC protocol data unit at t2 and t3 respectively. (Protocol Data Unit, PDU).
  • data transmission at Configured Grant Occasion 1 has end-to-end E2E delay; data transmission at CGO2 has E2E delay, if UL data transmission fails, network equipment (such as gNB ) is to improve the reliability of the Configured Grant (CG), then the network device can send a CG type2 reactivation command within the lifetime to reactivate the CG to improve reliability; for example, the network device can In the activated command, parameters such as MCS and radio resource blocks (Radio Block, RB) are reassigned to improve reliability, and duplication transmission can also be activated at the same time to obtain more reliable transmission.
  • MCS radio resource blocks
  • RB radio resource blocks
  • duplication transmission can also be activated at the same time to obtain more reliable transmission.
  • the survival time survival time is started. If the subsequent data can be transmitted correctly during the validity period of the survival time, the service transmission is considered to be available (availability). If the survival time expires, the data still cannot be transmitted correctly. The communication link between the source device and the target device
  • the reliability of subsequent transmission is improved in the above two ways.
  • the increase in the processing delay of the MAC CE will cause the terminal to be unable to apply the latest configuration at the time of CGO3, that is, the latest CG configuration and the duplication transmission method cannot be applied.
  • the embodiments of the present disclosure provide a method, an apparatus, a terminal, and a device for reducing the delay, which can solve the problem that the service transmission delay increases in the prior art by using the MAC CE mode to a certain extent.
  • an embodiment of the present disclosure provides a method for reducing delay, which is applied to a terminal, and the method specifically includes the following steps:
  • Step 501 Receive downlink control information DCI.
  • the terminal sends the terminal reporting capability to the network device, where the terminal reporting capability is used to indicate that the terminal can activate/deactivate the configuration authorization CG and PDCP copy transmission.
  • the network device sends DCI to the terminal according to the terminal reporting capability, and the terminal receives the DCI sent by the network device, where the DCI includes at least one kind of indication information.
  • Step 502 according to the DCI, activate/deactivate the configuration authorization CG and the packet data convergence protocol PDCP copy transmission.
  • the terminal activates the configuration-authorized CG and PDCP replication transmission according to the received DCI; or the terminal deactivates the configuration-authorized CG and PDCP replication transmission according to the received DCI.
  • the terminal activates/deactivates the configuration authorization CG and PDCP duplicate transmission according to the received downlink control information DCI, which can quickly activate/deactivate PDCP duplicate transmission and reduce service transmission delay.
  • the DCI includes one of the following:
  • the first item the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission.
  • the terminal may activate PDCP duplicate transmission on carriers 0, 1, and 2 according to the first indication information; if the first indication information indicates that the PDCP duplicate transmission is activated If the carrier group ID of the duplicate transmission is 1, and the carriers in the carrier group whose carrier group ID is 1 are 0, 1, and 3, the terminal can activate PDCP duplicate transmission on carriers 0, 1, and 3 according to the first indication information.
  • the above-mentioned first indication information indicating the carrier ID/carrier group ID for activating PDCP duplicate transmission may be information of a carrier indicator applied to cross-carrier scheduling. For example, after the terminal receives the DCI in serving cell A, the terminal activates PDCP replication transmission on serving cell A and cell B indicated by the carrier indication.
  • the second item second indication information indicating the carrier ID in the activated cell group Cellgroup.
  • the terminal may activate PDCP replication transmission on carriers 0, 3, and 4 according to the second indication information.
  • the Cell group may represent a master cell group (Master cell group, MCG) or a secondary cell group (Secondary Cell Group, SCG). Serving cells under the same network device (eg, base station) belong to one Cell group.
  • MCG Master cell group
  • SCG Secondary Cell Group
  • the third item the third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission.
  • the network device finds that the terminal channel quality becomes better, and sends DCI, and the third indication information in the DCI indicates the carrier ID for deactivating the PDCP duplicate transmission. If the third indication information indicates that the carrier IDs for deactivating PDCP duplicate transmission are 0, 1, and 2, the terminal can deactivate PDCP duplicate transmission on carriers 0, 1, and 2 according to the third indication information; if the third indication information indicates activation
  • the carrier group ID of PDCP duplicate transmission is 2, and in the carrier group whose carrier group ID is 2, the carriers are 2 and 4, and the terminal can deactivate PDCP duplicate transmission on carriers 2 and 4 according to the third indication information.
  • the fourth item the fourth indication information indicating the activation/deactivation of the PDCP duplication transmission of the data radio bearer DRBm, that is, the fourth indication information is used to instruct the terminal to activate/deactivate the PDCP duplication transmission of the DRBm.
  • the fourth indication information is used to instruct the terminal to activate the PDCP duplication transmission of DRBm, and when m is 1, 2 and k, the fourth indication information is used to instruct the terminal to activate the PDCP duplication transmission of DRB1, the PDCP duplication transmission of DRB2 and PDCP copy transmission of DRBK; in other words, DCI indicates that DRB1, DRB2, DRBK can use DCI to activate PDCP copy transmission, that is, the terminal can perform PDCP copy transmission of DRB1, DRB2, DRBK, that is, the terminal is transmitting DRB1, DRB2, DRBK data, perform PDCP copy transmission.
  • the terminal decodes the newly added bits contained in the DCI, and the newly added bits in the DCI are used to indicate the carrier ID/carrier group ID for activating the PDCP duplicate transmission, or in the DCI
  • the new bits are used to indicate the carrier ID in the activated cell group Cellgroup, or the new bits in the DCI are used to indicate the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission, or the new bits in the DCI are used to indicate the activation/deactivation.
  • Activating the PDCP duplicate transmission of DRBm in other words, a new bit in the DCI is used to indicate which carrier RLC entity is activated/deactivated, or a new bit in the DCI is used to indicate which DRB PDCP is activated/deactivated Copy transfer. For example, if a new bit indicates carrier A, the terminal will activate PDCP replication transmission on carrier A.
  • the terminal can determine whether to activate the PDCP duplicate transmission through the newly added bits, that is, the terminal determines whether to activate the PDCP duplicate transmission or to deactivate the PDCP duplicate transmission according to the newly added bits. For example, if the indication of the newly added bit is 0, it means that the PDCP duplication transmission is deactivated; if the indication of the newly added bit is 1, it means that the PDCP duplication transmission is activated. Specifically, when the bit corresponding to the carrier group ID is 1, it indicates that the PDCP replication transmission on the carrier corresponding to the current carrier group ID is activated; when the bit corresponding to the carrier group ID is 0, it indicates that the carrier corresponding to the current carrier group ID is deactivated on the PDCP replication transport.
  • the terminal when activating the PDCP duplication transmission on the carrier/carrier group, the terminal corresponds to the PDCP duplication transmission of the activated DRB m.
  • the network device may pre-configure the mapping relationship between the data radio bearer DRB m and the carrier/carrier group, and the terminal may, according to the pre-configured mapping relationship between the DRB m and the carrier/carrier group, activate the carrier/carrier group mapping relationship
  • the PDCP is replicated and transmitted, it corresponds to the PDCP replication and transmission of the activated DRB m.
  • the network device configures DRB m to correspond to carrier n and carrier k
  • the terminal activates PDCP duplication transmission on carrier n and carrier k
  • it corresponds to the PDCP duplication transmission of activated DRB m that is, the terminal can use the pre-configured DRBm
  • the PDCP copy transmission of DRBm on carrier n and carrier k is activated.
  • the DCI may further include: configuring the index number index of the authorized CG.
  • the DCI may further include: reactivation information of the configuration authorized CG, such as updated MCS, RB information, and the like.
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the carrier used by the terminal to receive DCI is used as the primary carrier, the carrier corresponding to the carrier ID indicated by the DCI is used as the secondary carrier, or the carrier corresponding to the carrier group ID indicated by the DCI is used as the secondary carrier, that is, the secondary carrier.
  • the terminal will activate PDCP duplicate transmission on carrier B and carrier C. If the terminal receives DCI on carrier B, and the new bit in the DCI indicates that the carrier corresponding to the carrier ID in the activated cell group Cellgroup is carrier D, the terminal will activate PDCP replication transmission on carrier B and carrier D. If the terminal receives DCI on carrier B, and the new bit in the DCI indicates that the carrier group ID corresponding to the carrier group ID for activating PDCP replication transmission is carrier E and carrier F, the terminal will activate PDCP replication on carrier B, carrier E and carrier F transmission.
  • the step 502 activates/deactivates the configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI, which may specifically include: :
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the terminal can activate/reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI according to the received DCI, and set the CG on the carrier ID/carrier group ID indicated by the DCI.
  • PDCP replication transmission is performed on the carrier corresponding to the carrier group ID.
  • the terminal activates/reactivates the carrier ID/carrier indicated by the first indication information according to the first indication information contained in the DCI. CG on the carrier corresponding to the group ID, and perform PDCP replication transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the terminal activates/reactivates the CG on the carrier corresponding to the carrier ID indicated by the second indication information according to the second indication information contained in the DCI, And perform PDCP replication transmission on the carrier corresponding to the carrier ID.
  • the step 502 activates/deactivates the configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI, which may specifically include the following two ways:
  • the terminal deactivates the CG and PDCP duplicate transmission on the carrier corresponding to the carrier ID indicated by the third indication information according to the third indication information , and return to the serving carrier (that is, the primary carrier receiving the DCI, or the carrier indicated by the carrier indicator); if the third indication information indicates the carrier group ID for deactivating the PDCP duplicate transmission, the terminal according to the third indication information Activating the CG and PDCP duplicate transmission on the carrier corresponding to the carrier group ID indicated by the third indication information.
  • the terminal deactivates the CG and PDCP duplicate transmission on all carriers.
  • the method may also include the following steps:
  • Receive first signaling where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the carrier group ID indicated by the DCI and the carrier group ID Mapping relations.
  • the terminal receives the first signaling (eg, RRC signaling) sent by the network device, where the first signaling is used to configure the mapping relationship between the secondary carrier ID and the secondary carrier, or, the first signaling It is used to configure the mapping relationship between the secondary carrier group ID and the secondary carrier group.
  • the network device configures carrier 1 to correspond to ID1, carrier 2 to ID2, ..., carrier N to ID N, forming a bit stream.
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP copy transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the steps may specifically include the following:
  • the DCI and the second signaling activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and execute the CG on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission of the data radio bearer
  • the terminal receives the second signaling (eg, RRC signaling) sent by the network device, and the second signaling is used to configure the data radio bearer for activating/deactivating PDCP replication transmission, that is, the second signaling Used to configure which data radio bearers can be configured for PDCP replication transmission.
  • the terminal can activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and execute the data radio bearer on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission e.g, RRC signaling
  • the terminal performs PDCP replication transmission for the data of the logical channel i, and the logical channel i may be pre-configured by the network device according to the logical channel. For example, if the network device configures DRB1, DRB2, and DRBK, the PDCP replication transmission can be activated in DCI mode, that is, the network device configures DRB1, DRB2, and DRBK for PDCP replication transmission. When the data of DRB1, DRB2, DRBK is used, PDCP copy transmission is performed.
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP copy transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the steps may specifically include the following:
  • the terminal authorizes the data radio bearer corresponding to the CG to determine the data radio bearer for PDCP replication transmission according to the preconfigured configuration. Therefore, the terminal can authorize the data radio bearer corresponding to the CG according to the DCI and the preconfigured configuration, activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI.
  • PDCP replication transmission of the data radio bearer is performed on the carrier corresponding to the group ID.
  • the network device configures the configuration authorization CG that can be used by logical channels 1 and 2. After receiving the DCI, the terminal activates/deactivates the configuration authorization of logical channels 1 and 2, and activates/deactivates the PDCP on logical channels 1 and 2. Copy transfer.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • the terminal if the terminal receives the fourth instruction information for activating/deactivating the CG sent by the network device, the terminal activates/deactivates the CG according to the fourth instruction information, and needs to activate/deactivate the PDCP copy transmission.
  • the terminal in the above embodiments of the present disclosure activates/deactivates the configuration authorization CG and PDCP duplication transmission, which can quickly activate/deactivate PDCP duplication transmission and reduce service transmission delay.
  • an embodiment of the present disclosure provides a method for reducing latency, which is applied to a network device.
  • the method specifically includes the following steps:
  • Step 601 Send downlink control information DCI to the terminal according to the terminal reporting capability, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • the network device sends DCI to the terminal according to the terminal reporting capability, so that the terminal activates the configuration authorization CG and PDCP copy transmission according to the received DCI; or makes the terminal deactivate the configuration authorization according to the received DCI CG and PDCP replication transmission.
  • the terminal reporting capability may be sent by the terminal to the network device, and the network device may also be acquired in other ways, which are not specifically limited herein.
  • the network device sends DCI to the terminal according to the terminal reporting capability, so that the terminal authorizes the CG and PDCP copy transmission according to the DCI activation/deactivation configuration, so that the PDCP copy transmission can be quickly activated/deactivated, and the service is reduced. transmission delay.
  • the DCI includes one of the following:
  • the first item the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission.
  • the terminal can be enabled to activate PDCP duplicate transmission on carriers 0, 1, and 2 according to the first indication information; if the first indication information indicates If the carrier group ID for activating PDCP duplicate transmission is 1, and the carriers in the carrier group whose carrier group ID is 1 are 0, 1, and 3, the terminal can be enabled to activate PDCP duplicate transmission on carriers 0, 1, and 3 according to the first indication information. .
  • the above-mentioned first indication information indicating the carrier ID/carrier group ID for activating PDCP duplicate transmission may be information of a carrier indicator applied to cross-carrier scheduling. For example, after the terminal receives the DCI in serving cell A, the terminal activates PDCP replication transmission on serving cell A and cell B indicated by the carrier indication.
  • the second item second indication information indicating the carrier ID in the activated cell group Cellgroup.
  • the terminal can activate PDCP replication transmission on carriers 0, 3, and 4 according to the second indication information.
  • the Cell group may represent a master cell group (Master cell group, MCG) or a secondary cell group (Secondary Cell Group, SCG). Serving cells under the same network device (eg, base station) belong to one Cell group.
  • MCG Master cell group
  • SCG Secondary Cell Group
  • the third item the third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission.
  • the network device finds that the terminal channel quality becomes better, and sends DCI, and the third indication information in the DCI indicates the carrier ID for deactivating the PDCP duplicate transmission. If the third indication information indicates that the carrier IDs for deactivating PDCP duplicate transmission are 0, 1, and 2, the terminal can be made to deactivate PDCP duplicate transmission on carriers 0, 1, and 2 according to the third indication information; if the third indication information indicates If the carrier group ID for activating PDCP duplicate transmission is 2, and the carriers in the carrier group with the carrier group ID 2 are 2 and 4, the terminal can be made to deactivate PDCP duplicate transmission on carriers 2 and 4 according to the third indication information.
  • the fourth item the fourth indication information indicating the activation/deactivation of the PDCP duplication transmission of the data radio bearer DRBm, that is, the fourth indication information is used to instruct the terminal to activate/deactivate the PDCP duplication transmission of the DRBm.
  • the fourth indication information is used to instruct the terminal to activate the PDCP duplication transmission of DRBm, and when m is 1, 2 and k, the fourth indication information is used to instruct the terminal to activate the PDCP duplication transmission of DRB1, the PDCP duplication transmission of DRB2 and PDCP copy transmission of DRBK; in other words, DCI indicates that DRB1, DRB2, DRBK can use DCI to activate PDCP copy transmission, that is, the terminal can perform PDCP copy transmission of DRB1, DRB2, DRBK, that is, the terminal is transmitting DRB1, DRB2, DRBK data, perform PDCP copy transmission.
  • the new bits in the DCI indicate the carrier ID/carrier group ID for activating the PDCP duplicate transmission, or the new bits in the DCI indicate the carrier ID in the activated cell group Cellgroup, or A new bit in DCI indicates the carrier ID/carrier group ID of deactivated PDCP duplicate transmission, or a new bit in DCI is used to indicate the activation/deactivation of PDCP duplicate transmission of DRBm; in other words, a new bit in DCI is used to indicate The RLC entity on which carrier is activated/deactivated, or a new bit in the DCI is used to indicate which DRB is activated/deactivated for PDCP replication transmission. For example, if a new bit indicates carrier A, the terminal can activate PDCP replication transmission on carrier A.
  • the terminal can determine whether to activate the PDCP duplicate transmission through the newly added bits, that is, the terminal determines whether to activate the PDCP duplicate transmission or to deactivate the PDCP duplicate transmission according to the newly added bits. For example, if the indication of the newly added bit is 0, it means that the PDCP duplicate transmission needs to be deactivated; if the indication of the newly added bit is 1, it means that the PDCP duplicate transmission needs to be activated. Specifically, when the bit corresponding to the carrier group ID is 1, it indicates that the PDCP replication transmission on the carrier corresponding to the current carrier group ID needs to be activated; when the bit corresponding to the carrier group ID is 0, it indicates that the current carrier group ID needs to be deactivated. PDCP replication transmission on the carrier.
  • the network device preconfigures the mapping relationship between the data radio bearer DRB m and the carrier/carrier group, so that when the terminal activates the PDCP duplication transmission on the carrier/carrier group, the PDCP duplication transmission of the DRB m is correspondingly activated.
  • the network device may pre-configure the mapping relationship between the data radio bearer DRB m and the carrier/carrier group, and the terminal may, according to the pre-configured mapping relationship between the DRB m and the carrier/carrier group, activate the carrier/carrier group mapping relationship
  • the PDCP is replicated and transmitted, it corresponds to the PDCP replication and transmission of the activated DRB m.
  • the network device configures DRB m to correspond to carrier n and carrier k
  • the terminal activates PDCP copy transmission on carrier n and carrier k
  • it corresponds to the PDCP copy transmission of DRB m activated that is, the terminal can use the pre-configured DRBm and The mapping relationship between carrier n and carrier k, and the PDCP copy transmission of DRBm on carrier n and carrier k is activated.
  • the DCI may further include: configuring the index number index of the authorized CG.
  • the DCI may further include: reactivation information of the configuration authorized CG, such as updated MCS, RB information, and the like.
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs the activation/deactivation PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the carrier used by the terminal to receive DCI is used as the primary carrier, the carrier corresponding to the carrier ID indicated by the DCI is used as the secondary carrier, or the carrier corresponding to the carrier group ID indicated by the DCI is used as the secondary carrier, that is, the secondary carrier.
  • the terminal can activate PDCP duplicate transmission on carrier B and carrier C. If the terminal receives DCI on carrier B, and the new bit in the DCI indicates that the carrier corresponding to the carrier ID in the activated cell group Cellgroup is carrier D, the terminal can activate PDCP replication transmission on carrier B and carrier D. If the terminal receives DCI on carrier B, and the newly added bits in the DCI indicate that the carriers corresponding to the carrier group ID for activating PDCP replication transmission are carrier E and carrier F, the terminal can activate PDCP replication on carrier B, carrier E and carrier F transmission.
  • the method may also include the following steps:
  • the network device configures the mapping relationship between the secondary carrier ID and the secondary carrier through the first signaling (eg, RRC signaling), or the network device configures the mapping relationship between the secondary carrier group ID and the secondary carrier group.
  • the network device configures carrier 1 to correspond to ID1, carrier 2 to ID2, ..., carrier N to ID N, forming a bit stream.
  • the method may also include the following steps:
  • the network device configures the data radio bearers for activating/deactivating PDCP replication transmission through the second signaling (for example, RRC signaling), that is, the network device configures which data radio bearers can be configured through the second signaling.
  • the second signaling for example, RRC signaling
  • PDCP duplicate transmission so that the terminal can activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI according to the DCI and the second signaling, and make the terminal on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission of the data radio bearer is performed thereon.
  • the network device may pre-configure the data of the logical channel i to perform PDCP replication transmission. For example, if the network device configures DRB1, DRB2, and DRBK, the PDCP replication transmission can be activated in DCI mode, that is, the network device configures DRB1, DRB2, and DRBK for PDCP replication transmission. When the data of DRB1, DRB2, DRBK is used, PDCP copy transmission is performed.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • the terminal can activate/deactivate the CG according to the fifth indication information, and also needs to activate/deactivate the PDCP replication transmission.
  • Embodiment 1 (a new bit in the DCI indicates the active carrier ID):
  • Step 1 the terminal sends the terminal reporting capability to the network device, and the terminal reporting capability is used to indicate that the terminal can activate/deactivate the configuration authorization CG and PDCP copy transmission;
  • Step 2 The network device sends downlink control information DCI to the terminal according to the terminal reporting capability, where the DCI includes one of the following contents:
  • the first item the first indication information indicating the carrier ID of the activated PDCP duplicate transmission
  • the second item the second indication information indicating the carrier ID in the activated cell group Cellgroup;
  • the DCI may further include: configure the index number index of the authorized CG.
  • the DCI may further include: reactivation information of the configuration authorized CG, such as updated MCS, RB information, and the like.
  • Step 3 The terminal receives the DCI, activates or reactivates the configuration grant CG on the carrier ID according to the carrier ID indicated by the DCI, and performs PDCP replication transmission on the carrier corresponding to the carrier ID.
  • the carrier on which the UE receives the DCI is the main leg (main leg) of the PDCP replication transmission, and the carrier corresponding to the carrier ID indicated by the DCI is the secondary leg (secondary leg) of the PDCP replication transmission.
  • Embodiment 2 (the newly added bit in the DCI indicates the activated carrier group ID):
  • Step 1 the terminal sends the terminal reporting capability to the network device, and the terminal reporting capability indicates that the terminal can activate/deactivate the configuration authorization CG and PDCP copy transmission;
  • Step 2 The network device configures the carrier group for PDCP duplicate transmission according to the terminal reporting capability; for example: carrier group 1 for PDCP duplicate transmission corresponds to carrier 0, carrier 1, and carrier 3; carrier group 2 for PDCP duplicate transmission corresponds to carrier 2, Carrier 4 and so on.
  • Step 3 The network device sends downlink control information DCI to the terminal according to the reporting capability of the terminal, where the DCI includes:
  • the first indication information indicating the carrier group ID for activating the PDCP duplicate transmission
  • the DCI may further include: configure the index number index of the authorized CG.
  • the DCI may further include: reactivation information of the configuration authorized CG, such as updated MCS, RB information, and the like.
  • Step 4 The terminal receives the DCI, activates or reactivates the configuration grant CG on the carrier corresponding to the carrier group ID according to the carrier group ID indicated by the DCI, and performs PDCP replication transmission on the carrier corresponding to the carrier group ID.
  • the carrier on which the UE receives the DCI is the primary leg (main leg) of the PDCP duplicate transmission, and the carrier corresponding to the carrier group ID indicated by the DCI is the secondary leg (secondary leg) of the PDCP duplicate transmission.
  • Embodiment 3 (the newly added bit in the DCI indicates the deactivated carrier ID):
  • Step 1 the terminal sends the terminal reporting capability to the network device, and the terminal reporting capability indicates that the terminal can activate/deactivate the configuration authorization CG and PDCP copy transmission;
  • Step 2 According to the reporting capability of the terminal, the network device finds that the channel quality of the terminal has become better and needs to deactivate the PDCP duplicate transmission, and then sends the downlink control information DCI to the terminal, and the DCI includes: indicating the deactivation of PDCP duplicate transmission.
  • the third indication information of the carrier ID According to the reporting capability of the terminal, the network device finds that the channel quality of the terminal has become better and needs to deactivate the PDCP duplicate transmission, and then sends the downlink control information DCI to the terminal, and the DCI includes: indicating the deactivation of PDCP duplicate transmission.
  • the third indication information of the carrier ID The third indication information of the carrier ID.
  • the third indication information indicates that the newly added bit is 0, it indicates that the PDCP duplicate transmission on all carriers needs to be deactivated
  • the third indication information indicates that the newly added bit is 1, it means that the configuration authorization CG and PDCP copy transmission need to be activated.
  • the specific carrier to be activated can be determined by referring to the carrier ID indicated by the DCI in the first or second embodiment. Do repeat.
  • Embodiment four (on the basis of embodiment one):
  • Step 4 The network device may pre-configure the data of the logical channel i to perform PDCP replication transmission, and the logical channel i may be pre-configured by the network device according to the logical channel.
  • the network device can configure DRB1, DRB2, and DRBK to activate PDCP replication transmission using DCI, that is, the network device configures DRB1, DRB2, and DRBK for PDCP replication transmission, and the terminal can perform the PDCP replication transmission of DRB1, DRB2, and DRBK.
  • DCI DCI
  • DRB1, DRB2, and DRBK for PDCP replication transmission
  • the terminal can perform the PDCP replication transmission of DRB1, DRB2, and DRBK.
  • the terminal authorizes the data radio bearer corresponding to the CG to determine the data radio bearer for PDCP replication transmission according to the preconfigured configuration. In this way, the terminal can authorize the data radio bearer corresponding to the CG according to the DCI and the preconfigured configuration, activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI.
  • PDCP replication transmission of the data radio bearer is performed on the carrier corresponding to the group ID.
  • the network device configures the configuration authorization CG that can be used by logical channels 1 and 2. After receiving the DCI, the terminal activates/deactivates the configuration authorization of logical channels 1 and 2, and activates/deactivates the PDCP on logical channels 1 and 2. Copy transfer.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • Step 1 the terminal sends the terminal reporting capability to the network device, and the terminal reporting capability is used to indicate that the terminal can activate/deactivate the configuration authorization CG and PDCP copy transmission;
  • Step 2 The network device sends downlink control information DCI to the terminal according to the reporting capability of the terminal, where the DCI is fifth indication information for activating/deactivating the CG.
  • Step 3 If the terminal receives the fifth instruction information for activating/deactivating the CG sent by the network device, the terminal activates/deactivates the CG according to the fifth instruction information, and needs to activate/deactivate the PDCP replication transmission.
  • the network device sends DCI to the terminal according to the terminal reporting capability, the terminal receives the DCI, and authorizes the CG and PDCP to copy and transmit according to the received DCI activation/deactivation configuration, thereby enabling rapid activation /Deactivate PDCP replication transmission to reduce service transmission delay.
  • an embodiment of the present disclosure further provides an apparatus 700 for reducing latency, which is applied to a terminal, and the apparatus includes:
  • a first receiving module 701 configured to receive downlink control information DCI
  • the first processing module 702 is configured to activate/deactivate the configuration authorization CG and the packet data convergence protocol PDCP replication transmission according to the DCI.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the first processing module 702 includes:
  • a first processing unit configured to activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI according to the DCI, and perform PDCP on the carrier corresponding to the carrier ID/carrier group ID Copy transfer.
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the first processing module includes:
  • a second processing unit configured to deactivate, according to the DCI, CG and PDCP duplicate transmission on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI;
  • the third processing unit is configured to deactivate CG and PDCP duplicate transmission on all carriers according to the DCI.
  • the device further includes:
  • a second receiving module configured to receive first signaling, where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the carrier ID indicated by the DCI Mapping relationship between carrier group ID and carrier group.
  • the first processing unit includes:
  • a first receiving subunit configured to receive second signaling, where the second signaling is used to configure a data radio bearer that performs activation/deactivation of PDCP replication transmission;
  • the first processing subunit is configured to activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI according to the DCI and the second signaling, and set the CG on the carrier ID/carrier PDCP replication transmission of the data radio bearer is performed on the carrier corresponding to the group ID.
  • the first processing unit includes:
  • the second processing subunit is configured to authorize the data radio bearer corresponding to the CG and the DCI according to the pre-configured configuration, activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and PDCP replication transmission of the data radio bearer is performed on the carrier corresponding to the carrier ID/carrier group ID.
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for the terminal to activate/deactivate the CG.
  • an embodiment of the present disclosure further provides an apparatus 800 for reducing latency, which is applied to network equipment, and the apparatus includes:
  • the first sending module 801 is configured to send downlink control information DCI to the terminal according to the terminal reporting capability, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the device further includes:
  • a second sending module configured to send first signaling to the terminal, where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the Describe the mapping relationship between the carrier group ID indicated by the DCI and the carrier group.
  • the device further includes:
  • the third sending module is configured to send a second signaling to the terminal, where the second signaling is used to configure a data radio bearer for performing activation/deactivation of PDCP replication transmission.
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier performing activation/deactivation PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor;
  • transceiver 910 for receiving and transmitting data under the control of the processor 900;
  • the processor 900 is configured to read the computer program in the memory and perform the following operations:
  • the activation/deactivation configuration authorizes CG and Packet Data Convergence Protocol (PDCP) replication transmission.
  • PDCP Packet Data Convergence Protocol
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP duplication and transmission according to the DCI include:
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication transmission on the carrier corresponding to the carrier ID/carrier group ID.
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • the activating/deactivating configuration authorization CG and the packet data convergence protocol PDCP copy transmission according to the DCI including:
  • processor 900 is further configured to:
  • Receive first signaling where the first signaling is used to configure the mapping relationship between the carrier ID indicated by the DCI and the carrier, or the first signaling is used to configure the carrier group ID indicated by the DCI and the carrier group ID Mapping relations.
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the DCI and the second signaling activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and execute the CG on the carrier corresponding to the carrier ID/carrier group ID.
  • PDCP replication transmission of the data radio bearer
  • the DCI activate or reactivate the CG on the carrier corresponding to the carrier ID/carrier group ID indicated by the DCI, and perform PDCP replication on the carrier corresponding to the carrier ID/carrier group ID.
  • transmission including:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 900 and various circuits of memory represented by memory 920 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 910 may be a number of elements, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like Transmission medium.
  • the user interface 930 may also be an interface capable of externally connecting a desired device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.
  • the processor 900 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field-Programmable Gate Array, a field programmable gate array) or a CPLD (Complex Programmable Logic Device) , complex programmable logic devices), the processor can also use a multi-core architecture.
  • CPU central processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • complex programmable logic devices complex programmable logic devices
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned embodiments of the method for reducing delay applied to a terminal, and can achieve the same technical effect, which is no longer described here.
  • the same parts and beneficial effects as the method embodiment will be described in detail.
  • an embodiment of the present disclosure also provides a network device, including a memory, a transceiver, and a processor;
  • memory 1020 for storing computer programs
  • the processor 1000 is configured to read the computer program in the memory and perform the following operations:
  • the downlink control information DCI is sent to the terminal, so that the terminal authorizes the CG and the packet data convergence protocol PDCP to copy and transmit according to the DCI activation/deactivation configuration.
  • the DCI includes one of the following:
  • the first indication information indicating the carrier ID/carrier group ID for activating the PDCP duplicate transmission
  • third indication information indicating the carrier ID/carrier group ID of the deactivated PDCP duplicate transmission
  • the Cell group represents a primary cell group MCG or a secondary cell group SCG.
  • processor 1000 is further configured to:
  • processor 1000 is further configured to:
  • the carrier used by the terminal to receive the DCI is the primary carrier that performs activation/deactivation of PDCP replication transmission
  • the carrier corresponding to the carrier ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission, or the carrier corresponding to the carrier group ID indicated by the DCI is a secondary carrier for activating/deactivating PDCP duplicate transmission.
  • the DCI is fifth indication information for activating/deactivating the CG.
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1000 and various circuits of the memory represented by the memory 1020 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1010 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.
  • the processor 1000 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by invoking the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • the above-mentioned network equipment provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned embodiments of the method for reducing delay applied to network equipment, and can achieve the same technical effect.
  • the same parts and beneficial effects in this embodiment as those in the method embodiment will be described in detail again.
  • Embodiments of the present disclosure further provide a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is configured to cause the processor to execute the above-mentioned latency reduction applied to a terminal method, or implement the above-mentioned method for reducing latency applied to network equipment.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.
  • the device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.
  • Various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof.
  • a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a computing processing device according to embodiments of the present disclosure.
  • DSP digital signal processor
  • the present disclosure can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing some or all of the methods described herein.
  • Such a program implementing the present disclosure may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.
  • Figure 10 illustrates a computing processing device that can implement methods in accordance with the present disclosure.
  • the computing processing device traditionally includes a processor 1010 and a computer program product or computer readable medium in the form of a memory 1020.
  • the memory 1020 may be electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
  • the memory 1020 has storage space 1030 for program code 1031 for performing any of the method steps in the above-described methods.
  • the storage space 1030 for program codes may include various program codes 1031 for implementing various steps in the above methods, respectively. These program codes can be read from or written to one or more computer program products.
  • These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG. 11 .
  • the storage unit may have storage segments, storage spaces, etc. arranged similarly to the memory 1020 in the computing processing device of FIG. 10 .
  • the program code may, for example, be compressed in a suitable form.
  • the storage unit includes computer readable code 1031', ie code readable by a processor such as 1010, for example, which, when executed by a computing processing device, causes the computing processing device to perform any of the methods described above. of the various steps.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in a claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the present disclosure may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware.
  • the use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

Abstract

本公开实施例提供了一种降低时延的方法、装置、终端及设备，该方法包括：接收下行控制信息DCI；根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。上述方案，能够快速激活/去激活PDCP复制传输，减少业务传输时延。

Description

一种降低时延的方法、装置、终端及设备
相关申请的交叉引用
本公开要求在2021年04月01日提交中国专利局、申请号为202110358408.6、名称为“一种降低时延的方法、装置、终端及设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及移动通信技术领域，尤其涉及一种降低时延的方法、装置、终端及设备。
背景技术
在现有技术中，网络侧会通过发送(Downlink Control Information，DCI)方式来激活/去激活配置授权，而通过媒体介入控制的控制单元(Media Access Control Control Element，MAC CE)的方式来激活/去激活复制duplication传输。
但是用户终端(User Equipment，UE)解码MAC CE有一定的延时，会导致业务传输时延增加的问题。
发明内容
本公开实施例提供一种降低时延的方法、装置、终端及设备，以便在一定程度上解决现有技术通过MAC CE的方式进行业务传输，导致业务传输时延增加的问题。
第一方面，本公开实施例提供了一种降低时延的方法，应用于终端，包括：
接收下行控制信息DCI；
根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，在所述DCI包含第三指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
可选的，所述方法还包括：
接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
第二方面，本公开实施例还提供一种降低时延的方法，应用于网络设备，包括：
根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，所述方法还包括：
向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述方法还包括：
向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活 PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
第三方面，本公开实施例还提供一种终端，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
接收下行控制信息DCI；
根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，在所述DCI包含第三指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
可选的，所述处理器还用于：
接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
第四方面，本公开实施例还提供一种网络设备，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，所述处理器还用于：
向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述处理器还用于：
向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
第五方面，本公开实施例还提供一种降低时延的装置，应用于终端，包括：
第一接收模块，用于接收下行控制信息DCI；
第一处理模块，用于根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述第一处理模块，包括：
第一处理单元，用于根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
可选的，在所述DCI包含第三指示信息的情况下，所述第一处理模块，包括：
第二处理单元，用于根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
第三处理单元，用于根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
第六方面，本公开实施例还提供一种降低时延的装置，应用于网络设备，包括：
第一发送模块，用于根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
第七方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述应用于终端的降低时延的方法，或者执行上述应用于网络设备的降低时延的方法。
在本公开实施例中，终端根据接收到的下行控制信息DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，能够快速激活/去激活PDCP复制传输，减少业务传输时延。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
附图说明
为了更清楚地说明本公开实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术的数据复制的示意图；
图2为现有技术的配置授权类型2数据发送过程示意图；
图3为现有技术的数据传输示意图；
图4为本公开实施例提供的降低时延的方法的步骤流程图之一；
图5为本公开实施例提供的降低时延的方法的步骤流程图之二；
图6为本公开实施例提供的降低时延的装置的结构框图之一；
图7为本公开实施例提供的降低时延的装置的结构框图之二；
图8为本公开实施例提供的终端的结构框图；
图9为本公开实施例提供的网络设备的结构框图；
图10示意性地示出了用于执行根据本公开的方法的计算处理设备的框图；并且
图11示意性地示出了用于保持或者携带实现根据本公开的方法的程序代码的存储单元。
具体实施例
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
本申请实施例提供了一种降低时延的方法、装置、终端及设备，能够快速激活/去激活PDCP复制传输，减少业务传输时延。
其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
此外，本申请实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通 用分组无线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本申请实施例涉及的终端，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端的名称可能也不相同，例如在5G系统中，终端可以称为用户设备(User Equipment，UE)。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network，CN)进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户装置(user device)，本申请实施例中并不限定。
本申请实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端与接入网的其余部分之间的路由器，其 中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本申请实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本申请实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
网络设备与终端之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output，MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO，SU-MIMO)或多用户MIMO(Multiple User MIMO，MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
在进行本公开实施例的说明之前，首先对与本方案相关的现有技术进行具体说明。
复制Duplication传输是指：对于一个承载，网络设备会给其配置对应多个无线链路控制(Radio Link Control，RLC)实体，分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)实体会将一个PDCP协议数据单元(Protocol Data Unit，PDU)复制为多份，并同时递交给多个RLC实体，目的是为了提高数据传输的可靠性。如图1所示，PDCP表示分组数据汇聚协议实体，RLC primary表示主RLC实体，RLC secondary表示第二RLC实体，primary LCH表示主逻辑信道，secondary LCH表示第二逻辑信道；其中主RLC实体指主逻辑信道(Logical Channel，LCH)，而对应第二RLC实体指第二逻辑信道，第二逻辑信道可以有多个。这样相同的数据包通过多个独立的传输路径传输， 提升了业务的可靠性，并降低了传输时延，特别是对于高可靠低时延通信(Ultra Reliable Low Latency Communications，URLLC)业务有很大的好处。
目前，网络设备会提前配置duplication的RLC实体。当需要duplication传输时，网络设备会通过发送MAC CE的方式来触发duplication。
该MAC CE是承载在物理下行共享信道(Physical Downlink Shared CHannel，PDSCH)上，终端需要在接收到物理下行控制信道(Physical Downlink Control Channel，PDCCH)后，解码发现有对应该终端的PDSCH，从而解码PDSCH中的数据，从而解码MAC CE，从而确定该MAC CE是激活/去激活PDCP duplication传输，从而执行PDCP duplication传输的激活/去激活。由此可见，接收MAC CE相对接收DCI，有一定的延时。
具体的，新无线(New Radio，NR)系统中，由于每个分配都需要在控制信道PDCCH上有相应的DCI指示，因此，会存在着控制信道开销较大的问题。对于互联网电话(Voice over Internet Protocol，VoIP)等一类业务，其数据包的大小相对比较固定，而且数据包之间的时间间隔也满足一定的规律性。为此，NR在上行(Up Link，UL)引入了配置授权类型2(Configured grant type2)的调度方式。在配置授权类型2调度过程中，通过无线资源控制(Radio Resource Control，RRC)信令进行配置，同时RRC信令指定配置授权类型2的周期。配置授权类型2通过在PDCCH为其分配相应的调制编码方式(Modulation Coding Scheme，MCS)、资源位置等信息，并激活该配置授权类型2，终端通过保存相应的信息，在随后的调度周期内重复使用。在配置授权类型2传输的时隙/符号，gNB也可以通过PDCCH重新分配相应的资源用于传输。配置授权类型2最后通过PDCCH的指示进行释放。其中，配置授权类型2数据发送过程可以如图2所示，网络设备通过RRC配置上述配置授权类型2的配置授权，以及通过DCI进行激活，终端在t2和t3分别发送配置授权的MAC协议数据单元(Protocol Data Unit，PDU)。
如图3所示，在配置授权时间1(Configured Grant Occasion 1，CGO1)传输数据，具有端到端E2E延迟；在CGO2传输数据，具有E2E延迟，如果UL数据传输失败，网络设备(如：gNB)的目标是提升配置授权(Configured Grant，CG)的可靠性，那么网络设备可以在存活时间之内发送CG type2的重激活命令来重新激活CG，以提高可靠性；例如：网络设备可以在重激活的 命令中重新分配MCS以及无线资源块(Radio Block，RB)等参数来提高可靠性，也可以同时激活duplication传输，从而得到更可靠的传输。其中，当一个数据传输发生错误时，启动存活时间survival time，如果survival time有效期间后续数据可以正确传输，则认为该业务传输是可用的(availability)，如果survival time超时，数据仍不能正确传输，则认为原设备和目标设备之间的通信链路是不可用的。
上述通过2种方式来提高后续传输的可靠性。但是由于duplication传输是通过MAC CE方式传输的，MAC CE处理时延的增加，会导致终端无法在CGO3的时刻应用最新的配置，即无法应用最新的CG的配置以及duplication传输的方式。
因此，本公开实施例提供了一种降低时延的方法、装置、终端及设备，能够在一定程度上解决现有技术通过MAC CE的方式进行业务传输，导致业务传输时延增加的问题。
具体的，如图4所示，本公开实施例提供了一种降低时延的方法，应用于终端，该方法具体包括如下步骤：
步骤501，接收下行控制信息DCI。
在上述实施例中，在步骤501之前，终端向网络设备发送终端上报能力，该终端上报能力用于指示终端能够激活/去激活配置授权CG和PDCP复制传输。网络设备根据该终端上报能力向终端发送DCI，终端接收网络设备发送的DCI，该DCI包含至少一种指示信息。
步骤502，根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
在上述实施例中，终端根据接收到的DCI，激活配置授权CG和PDCP复制传输；或者终端根据接收到的DCI，去激活配置授权CG和PDCP复制传输。
本公开上述实施例中，终端根据接收到的下行控制信息DCI，激活/去激活配置授权CG和PDCP复制传输，能够快速激活/去激活PDCP复制传输，减少业务传输时延。
可选的，所述DCI包括以下其中一项：
第一项：指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息。
例如：如果第一指示信息指示激活PDCP复制传输的载波ID为0、1、2，终端可以根据第一指示信息激活载波0、1、2上的PDCP复制传输；如果第一指示信息指示激活PDCP复制传输的载波组ID为1，载波组ID为1的载波组中在载波为0、1、3，则终端可以根据第一指示信息激活载波0、1、3上的PDCP复制传输。
可选的，上述指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息，可以是应用于跨载波调度的载波指示carrier indicator的信息。例如：当终端在服务小区A接收到所述DCI之后，终端在服务小区A以及载波指示指示的小区B上激活PDCP复制传输。
第二项：指示激活的小区组Cellgroup内的载波ID的第二指示信息。
例如：第二指示信息指示激活的小区组Cellgroup内的载波ID的为0、3、4，则终端可以根据第二指示信息激活载波0、3、4上的PDCP复制传输。
其中，所述Cell group可以表示主小区组(Master cell group，MCG)或者辅小区组(Secondary Cell Group，SCG)。相同网络设备(如：基站)下的服务小区属于一个Cell group。
第三项：指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息。
例如：在终端执行配置授权CG和PDCP复制传输时，网络设备发现终端信道质量变好，则会发送DCI，DCI中的第三指示信息指示去激活PDCP复制传输的载波ID。如果第三指示信息指示去激活PDCP复制传输的载波ID为0、1、2，则终端可以根据第三指示信息去激活载波0、1、2上的PDCP复制传输；如果第三指示信息指示激活PDCP复制传输的载波组ID为2，载波组ID为2的载波组中在载波为2、4，则终端可以根据第三指示信息去激活载波2、4上的PDCP复制传输。
第四项：指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息，即第四指示信息用于指示终端激活/去激活DRBm的PDCP复制传输。
例如：如果第四指示信息用于指示终端激活DRBm的PDCP复制传输，且在m为1、2和k时，第四指示信息用于指示终端激活DRB1的PDCP复制传输、DRB2的PDCP复制传输以及DRBK的PDCP复制传输；换句话说， DCI指示DRB1，DRB2，DRBK可以使用DCI方式激活PDCP复制传输，即终端可以执行DRB1，DRB2，DRBK的PDCP复制传输，即终端在传输DRB1，DRB2，DRBK的数据时，执行PDCP复制传输。
其中，如果DCI中包含新增比特，则终端在接收到DCI之后，解码DCI中包含的新增比特，DCI中新增比特用于指示激活PDCP复制传输的载波ID/载波组ID，或者DCI中新增比特用于指示激活的小区组Cellgroup内的载波ID，或者DCI中新增比特用于指示去激活PDCP复制传输的载波ID/载波组ID，或者DCI中新增比特用于指示激活/去激活DRBm的PDCP复制传输；换句话说，DCI中新增比特用于指示哪个载波上的RLC实体被激活/被去激活，或者DCI中新增比特用于指示激活/去激活哪种DRB的PDCP复制传输。例如：新增比特指示载波A，则终端将在载波A上激活PDCP复制传输。
需要说明的是，终端可以通过新增比特判断是否需要激活PDCP复制传输，即终端根据新增比特确定是激活PDCP复制传输还是去激活PDCP复制传输。例如：新增比特指示为0，则表示去激活PDCP复制传输；如果新增比特指示为1，则表示激活PDCP复制传输。具体的，当载波组ID对应的比特为1时，表示激活当前载波组ID对应的载波上的PDCP复制传输；当载波组ID对应的比特为0时，表示去激活当前载波组ID对应的载波上的PDCP复制传输。
可选的，终端根据预先配置的数据无线承载DRB m与载波/载波组的映射关系，激活载波/载波组上的PDCP复制传输时，对应激活DRB m的PDCP复制传输。
在上述实施例中，网络设备可以预先配置数据无线承载DRB m与载波/载波组的映射关系，终端可以根据预先配置的DRB m与载波/载波组的映射关系，在激活载波/载波组上的PDCP复制传输时，对应激活DRB m的PDCP复制传输。
例如：如果网络设备配置DRB m与载波n和载波k相对应，那么终端在激活载波n和载波k上的PDCP复制传输时，对应激活DRB m的PDCP复制传输，即终端可以根据预先配置的DRBm与载波n和载波k的映射关系，激活载波n与载波k上DRBm的PDCP复制传输。
可选的，所述DCI还可以包括：配置授权CG的索引号index。
可选的，所述DCI还可以包括：配置授权CG的重激活信息，例如：更新的MCS、RB信息等。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
在上述实施例中，将终端用于接收DCI的载波作为主载波，将DCI指示的载波ID对应的载波作为辅载波，或者将DCI指示的载波组ID对应的载波作为辅载波，即该辅载波可以是一个或多个载波。
例如：如果终端在载波B上接收到DCI，DCI中新增比特指示激活PDCP复制传输的载波ID对应的载波为载波C，则终端将在载波B和载波C上激活PDCP复制传输。如果终端在载波B上接收到DCI，DCI中新增比特指示激活的小区组Cellgroup内的载波ID对应的载波为载波D，则终端将在载波B和载波D上激活PDCP复制传输。如果终端在载波B上接收到DCI，DCI中新增比特指示激活PDCP复制传输的载波组ID对应的载波为载波E和载波F，则终端将在载波B、载波E和载波F上激活PDCP复制传输。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述步骤502根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，具体可以包括：
根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
在上述实施例中，由于DCI包含激活PDCP复制传输的载波ID/载波组ID的第一指示信息，或者DCI包含激活的小区组Cellgroup内的载波ID的第二指示信息，或者DCI包含去激活PDCP复制传输的载波ID/载波组ID的第三指示信息，则终端根据接收到的DCI可以激活/重新激活DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
具体的，如果DCI包含指示激活PDCP复制传输的载波ID/载波组ID的 第一指示信息，则终端根据DCI中包含的第一指示信息，激活/重新激活第一指示信息指示的载波ID/载波组ID对应的载波上的CG，并在该载波ID/载波组ID对应的载波上执行PDCP复制传输。如果DCI包含指示激活的小区组Cellgroup内的载波ID的第二指示信息，则终端根据DCI中包含的第二指示信息，激活/重新激活第二指示信息指示的载波ID对应的载波上的CG，并在该载波ID对应的载波上执行PDCP复制传输。
可选的，在所述DCI包含第三指示信息的情况下，所述步骤502根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，具体可以包括如下两种方式：
第一种：根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；
在上述第一种方式中，如果第三指示信息指示去激活PDCP复制传输的载波ID，则终端根据该第三指示信息去激活第三指示信息指示的载波ID对应载波上的CG和PDCP复制传输，并返回到服务载波(即接收该DCI的主载波，或载波指示Carrier indicator指示的载波)；如果第三指示信息指示去激活PDCP复制传输的载波组ID，则终端根据该第三指示信息去激活第三指示信息指示的载波组ID对应载波上的CG和PDCP复制传输。
第二种：根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
在上述第二种方式中，如果第三指示信息指示去激活PDCP复制传输的载波ID/载波组ID，则终端去激活所有载波上的CG和PDCP复制传输。
可选的，所述方法还可以包括如下步骤：
接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
在上述实施例中，终端接收网络设备发送的第一信令(如：RRC信令)，该第一信令是用于配置辅载波ID与辅载波的映射关系，或者，该第一信令是用于配置辅载波组ID与辅载波组的映射关系。例如：网络设备配置载波1对应ID1，载波2对应ID2，…，载波N对应ID N，形成一个比特流。当终端接收的该比特中ID m＝1时，表示ID m对应的载波m被激活，终端将在服务载波(即接收该DCI的主载波，或载波指示指示的载波)以及载波m上执 行PDCP复制传输；当UE接收的该比特中ID m＝0，表示ID m对应的载波被去激活。
可选的，上述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输的步骤，具体可以包括如下内容：
接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
在上述实施例中，终端接收网络设备发送的第二信令(如：RRC信令)，该第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载，即第二信令用于配置哪些数据无线承载可以配置为PDCP复制传输。终端根据DCI以及第二信令，可以激活或重新激活DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
例如：终端针对逻辑信道i的数据执行PDCP复制传输，所述逻辑信道i可以是网络设备根据逻辑信道预先配置的。比如：网络设备配置DRB1，DRB2，DRBK可以使用DCI方式激活PDCP复制传输，即网络设备将DRB1，DRB2，DRBK配置PDCP复制传输，终端可以执行DRB1，DRB2，DRBK的PDCP复制传输，即终端在传输DRB1，DRB2，DRBK的数据时，执行PDCP复制传输。
可选的，上述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输的步骤，具体可以包括如下内容：
根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
在上述实施例中，终端根据预配置的配置授权CG对应的数据无线承载确定PDCP复制传输的数据无线承载。由此，终端可以根据DCI和预配置的配 置授权CG对应的数据无线承载，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。比如：网络设备配置逻辑信道1、2能够使用的配置授权CG，终端在接收到DCI之后，激活/去激活逻辑信道1、2的配置授权，并且激活/去激活逻辑信道1、2上的PDCP复制传输。
可选的，所述DCI为激活/去激活CG的第五指示信息。
在上述实施例中，如果终端接收到网络设备发送的激活/去激活CG的第四指令信息，则终端根据第四指令信息激活/去激活CG，并且需要激活/去激活PDCP复制传输。
综上所述，本公开上述实施例终端根据接收到的下行控制信息DCI，激活/去激活配置授权CG和PDCP复制传输，能够快速激活/去激活PDCP复制传输，减少业务传输时延。
如图5所示，本公开实施例提供了一种降低时延的方法，应用于网络设备，该方法具体包括如下步骤：
步骤601，根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
在上述实施例中，网络设备根据该终端上报能力向终端发送DCI，以使终端根据接收到的DCI，激活配置授权CG和PDCP复制传输；或者以使终端根据接收到的DCI，去激活配置授权CG和PDCP复制传输。其中，终端上报能力可以由终端发送至网络设备，网络设备也可以通过其他方式获取，在此不做具体限定。
本公开上述实施例中，网络设备根据终端上报能力，向终端发送DCI，以使终端根据DCI激活/去激活配置授权CG和PDCP复制传输，由此可以快速激活/去激活PDCP复制传输，减少业务传输时延。
可选的，所述DCI包括以下其中一项：
第一项：指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息。
例如：如果第一指示信息指示激活PDCP复制传输的载波ID为0、1、2，则可以使终端根据第一指示信息激活载波0、1、2上的PDCP复制传输；如果第一指示信息指示激活PDCP复制传输的载波组ID为1，载波组ID为1 的载波组中在载波为0、1、3，则可以使终端根据第一指示信息激活载波0、1、3上的PDCP复制传输。
可选的，上述指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息，可以是应用于跨载波调度的载波指示carrier indicator的信息。例如：当终端在服务小区A接收到所述DCI之后，终端在服务小区A以及载波指示指示的小区B上激活PDCP复制传输。
第二项：指示激活的小区组Cellgroup内的载波ID的第二指示信息。
例如：第二指示信息指示激活的小区组Cellgroup内的载波ID的为0、3、4，则可以使终端根据第二指示信息激活载波0、3、4上的PDCP复制传输。
其中，所述Cell group可以表示主小区组(Master cell group，MCG)或者辅小区组(Secondary Cell Group，SCG)。相同网络设备(如：基站)下的服务小区属于一个Cell group。
第三项：指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息。
例如：在终端执行配置授权CG和PDCP复制传输时，网络设备发现终端信道质量变好，则会发送DCI，DCI中的第三指示信息指示去激活PDCP复制传输的载波ID。如果第三指示信息指示去激活PDCP复制传输的载波ID为0、1、2，则可以使终端根据第三指示信息去激活载波0、1、2上的PDCP复制传输；如果第三指示信息指示激活PDCP复制传输的载波组ID为2，载波组ID为2的载波组中在载波为2、4，则可以使终端根据第三指示信息去激活载波2、4上的PDCP复制传输。
第四项：指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息，即第四指示信息用于指示终端激活/去激活DRBm的PDCP复制传输。
例如：如果第四指示信息用于指示终端激活DRBm的PDCP复制传输，且在m为1、2和k时，第四指示信息用于指示终端激活DRB1的PDCP复制传输、DRB2的PDCP复制传输以及DRBK的PDCP复制传输；换句话说，DCI指示DRB1，DRB2，DRBK可以使用DCI方式激活PDCP复制传输，即终端可以执行DRB1，DRB2，DRBK的PDCP复制传输，即终端在传输DRB1，DRB2，DRBK的数据时，执行PDCP复制传输。
其中，如果DCI中包含新增比特，则通过DCI中新增比特指示激活PDCP复制传输的载波ID/载波组ID，或者通过DCI中新增比特指示激活的小区组Cellgroup内的载波ID，或者通过DCI中新增比特指示去激活PDCP复制传输的载波ID/载波组ID，或者DCI中新增比特用于指示激活/去激活DRBm的PDCP复制传输；换句话说，DCI中新增比特用于指示哪个载波上的RLC实体被激活/被去激活，或者DCI中新增比特用于指示激活/去激活哪种DRB的PDCP复制传输。例如：新增比特指示载波A，则终端可以在载波A上激活PDCP复制传输。
需要说明的是，终端可以通过新增比特判断是否需要激活PDCP复制传输，即终端根据新增比特确定是激活PDCP复制传输还是去激活PDCP复制传输。例如：新增比特指示为0，则表示需要去激活PDCP复制传输；如果新增比特指示为1，则表示需要激活PDCP复制传输。具体的，当载波组ID对应的比特为1时，表示需要激活当前载波组ID对应的载波上的PDCP复制传输；当载波组ID对应的比特为0时，表示需要去激活当前载波组ID对应的载波上的PDCP复制传输。
可选的，网络设备预先配置数据无线承载DRB m与载波/载波组的映射关系，以使所述终端激活载波/载波组上的PDCP复制传输时，对应激活DRB m的PDCP复制传输。
在上述实施例中，网络设备可以预先配置数据无线承载DRB m与载波/载波组的映射关系，终端可以根据预先配置的DRB m与载波/载波组的映射关系，在激活载波/载波组上的PDCP复制传输时，对应激活DRB m的PDCP复制传输。
例如：网络设备配置DRB m与载波n和载波k相对应，那么终端在激活载波n和载波k上的PDCP复制传输时，对应激活DRB m的PDCP复制传输，即终端可以根据预先配置的DRBm与载波n和载波k的映射关系，激活载波n与载波k上DRBm的PDCP复制传输。
可选的，所述DCI还可以包括：配置授权CG的索引号index。
可选的，所述DCI还可以包括：配置授权CG的重激活信息，例如：更新的MCS、RB信息等。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复 制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
在上述实施例中，将终端用于接收DCI的载波作为主载波，将DCI指示的载波ID对应的载波作为辅载波，或者将DCI指示的载波组ID对应的载波作为辅载波，即该辅载波可以是一个或多个载波。
例如：如果终端在载波B上接收到DCI，DCI中新增比特指示激活PDCP复制传输的载波ID对应的载波为载波C，则终端可以在载波B和载波C上激活PDCP复制传输。如果终端在载波B上接收到DCI，DCI中新增比特指示激活的小区组Cellgroup内的载波ID对应的载波为载波D，则终端可以在载波B和载波D上激活PDCP复制传输。如果终端在载波B上接收到DCI，DCI中新增比特指示激活PDCP复制传输的载波组ID对应的载波为载波E和载波F，则终端可以在载波B、载波E和载波F上激活PDCP复制传输。
可选的，所述方法还可以包括如下步骤：
向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
在上述实施例中，网络设备通过第一信令(如：RRC信令)配置辅载波ID与辅载波的映射关系，或者，网络设备通过配置辅载波组ID与辅载波组的映射关系。例如：网络设备配置载波1对应ID1，载波2对应ID2，…，载波N对应ID N，形成一个比特流。当该比特中ID m＝1时，表示ID m对应的载波m需要被激活，终端可以在服务载波(即接收该DCI的主载波，或载波指示指示的载波)以及载波m上执行PDCP复制传输；当该比特中ID m＝0，表示ID m对应的载波需要被去激活。
可选的，所述方法还可以包括如下步骤：
向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
在上述实施例中，网络设备通过第二信令(如：RRC信令)配置执行激活/去激活PDCP复制传输的数据无线承载，即网络设备通过第二信令配置哪 些数据无线承载可以配置为PDCP复制传输，以使终端可以根据DCI以及第二信令，激活或重新激活DCI指示的载波ID/载波组ID对应的载波上的CG，并使终端在该载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
例如：网络设备可以预先配置逻辑信道i的数据可以执行PDCP复制传输。比如：网络设备配置DRB1，DRB2，DRBK可以使用DCI方式激活PDCP复制传输，即网络设备将DRB1，DRB2，DRBK配置PDCP复制传输，终端可以执行DRB1，DRB2，DRBK的PDCP复制传输，即终端在传输DRB1，DRB2，DRBK的数据时，执行PDCP复制传输。
可选的，所述DCI为激活/去激活CG的第五指示信息。
在上述实施例中，如果网络设备发送的DCI为第五指示信息，则终端可以根据第五指示信息激活/去激活CG，并且还需要激活/去激活PDCP复制传输。
下面将本公开技术方案应用到具体实施例中进行详细说明：
实施例一(DCI中新增比特指示激活的载波ID)：
步骤一：终端向网络设备发送终端上报能力，该终端上报能力用于指示终端能够激活/去激活配置授权CG和PDCP复制传输；
步骤二：网络设备根据所述终端上报能力，向所述终端发送下行控制信息DCI，该DCI包含以下内容中的其中一项：
第一项：指示激活PDCP复制传输的载波ID的第一指示信息；
第二项：指示激活的小区组Cellgroup内的载波ID的第二指示信息；
可选的，该DCI还可以包含：配置授权CG的索引号index。
可选的，该DCI还可以包含：配置授权CG的重激活信息，比如更新的MCS、RB信息等。
步骤三：终端接收该DCI，并根据DCI指示的载波ID，激活或重新激活载波ID上的配置授权CG，并在该载波ID对应的载波上执行PDCP复制传输。
可选的，UE接收DCI的载波为PDCP复制传输的主路径(main leg)，而DCI指示的载波ID对应的载波为PDCP复制传输的辅路径(secondary leg)。
实施例二(DCI中新增比特指示激活的载波组ID)：
步骤一：终端向网络设备发送终端上报能力，该终端上报能力指示终端 能够激活/去激活配置授权CG和PDCP复制传输；
步骤二：网络设备根据所述终端上报能力，配置PDCP复制传输的载波组；例如：PDCP复制传输的载波组1对应载波0、载波1、载波3；PDCP复制传输的载波组2对应载波2、载波4等。
步骤三：网络设备根据所述终端上报能力，向所述终端发送下行控制信息DCI，该DCI包含：
指示激活PDCP复制传输的载波组ID的第一指示信息；
可选的，该DCI还可以包含：配置授权CG的索引号index。
可选的，该DCI还可以包含：配置授权CG的重激活信息，比如更新的MCS、RB信息等。
步骤四：终端接收该DCI，并根据DCI指示的载波组ID，激活或重新激活载波组ID对应的载波上的配置授权CG，并在该载波组ID对应的载波上执行PDCP复制传输。
可选的，UE接收DCI的载波为PDCP复制传输的主路径(main leg)，而DCI指示的载波组ID中对应的载波为PDCP复制传输的辅路径(secondary leg)。
实施例三(DCI中新增比特指示去激活的载波ID)：
步骤一：终端向网络设备发送终端上报能力，该终端上报能力指示终端能够激活/去激活配置授权CG和PDCP复制传输；
步骤二：网络设备根据所述终端上报能力，网络设备发现终端信道质量变好，需要去激活PDCP复制传输，则向所述终端发送下行控制信息DCI，该DCI包含：指示去激活PDCP复制传输的载波ID的第三指示信息。
当第三指示信息指示新增比特为0时，表示需要去激活所有载波上的PDCP复制传输；
当第三指示信息指示新增比特为1时，表示需要激活配置授权CG和PDCP复制传输，具体需要激活的载波可以参照根据实施例一或者实施例二中DCI指示的载波ID确定，在此不做赘述。
实施例四(在实施例一的基础上)：
步骤四：网络设备可以预先配置逻辑信道i的数据可以执行PDCP复制传输，所述逻辑信道i可以是网络设备根据逻辑信道预先配置的。比如：网络设 备可以配置DRB1，DRB2，DRBK可以使用DCI方式激活PDCP复制传输，即网络设备将DRB1，DRB2，DRBK配置PDCP复制传输，终端可以执行DRB1，DRB2，DRBK的PDCP复制传输，即终端在传输DRB1，DRB2，DRBK的数据时，执行PDCP复制传输。
或者，
终端根据预配置的配置授权CG对应的数据无线承载确定PDCP复制传输的数据无线承载。由此，终端可以根据DCI和预配置的配置授权CG对应的数据无线承载，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。比如：网络设备配置逻辑信道1、2能够使用的配置授权CG，终端在接收到DCI之后，激活/去激活逻辑信道1、2的配置授权，并且激活/去激活逻辑信道1、2上的PDCP复制传输。
实施例五：
步骤一：终端向网络设备发送终端上报能力，该终端上报能力用于指示终端能够激活/去激活配置授权CG和PDCP复制传输；
步骤二：网络设备根据所述终端上报能力，向所述终端发送下行控制信息DCI，该DCI为激活/去激活CG的第五指示信息。
步骤三：如果终端接收到网络设备发送的激活/去激活CG的第五指令信息，则终端根据第五指示信息激活/去激活CG，并且需要激活/去激活PDCP复制传输。
综上所述，本公开上述实施例中，网络设备根据终端上报能力向终端发送DCI，终端接收DCI，并根据接收到的DCI激活/去激活配置授权CG和PDCP复制传输，由此可以快速激活/去激活PDCP复制传输，减少业务传输时延。
以上介绍了本公开实施例提供的降低时延的方法，下面将结合附图介绍本公开实施例提供的降低时延的装置。
参见图6，本公开实施例还提供了一种降低时延的装置700，应用于终端，所述装置包括：
第一接收模块701，用于接收下行控制信息DCI；
第一处理模块702，用于根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述第一处理模块702，包括：
第一处理单元，用于根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，在所述DCI包含第三指示信息的情况下，所述第一处理模块，包括：
第二处理单元，用于根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；
或者，
第三处理单元，用于根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
可选的，所述装置还包括：
第二接收模块，用于接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述第一处理单元，包括：
第一接收子单元，用于接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
第一处理子单元，用于根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述第一处理单元，包括：
第二处理子单元，用于根据预配置的配置授权CG对应的数据无线承载和 所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为终端激活/去激活CG的第五指示信息。
参见图7，本公开实施例还提供了一种降低时延的装置800，应用于网络设备，该装置包括：
第一发送模块，801用于根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，所述装置还包括：
第二发送模块，用于向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述装置还包括：
第三发送模块，用于向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输 的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图8所示，本公开的实施例还提供了一种终端，包括存储器、收发机、处理器；
存储器920，用于存储计算机程序；
收发机910，用于在处理器900的控制下接收和发送数据；
处理器900，用于读取所述存储器中的计算机程序并执行以下操作：
接收下行控制信息DCI；
根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，在所述DCI包含第三指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
可选的，所述处理器900还用于：
接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口930还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。
可选的，处理器900可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可编程逻辑器件)，处理器也可以采用多核架构。
在此需要说明的是，本公开实施例提供的上述终端，能够实现上述应用于终端的降低时延的方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图9所示，本公开的实施例还提供了一种网络设备，包括存储器、收 发机、处理器；
存储器1020，用于存储计算机程序；
收发机1010，用于在处理器1000的控制下接收和发送数据；
处理器1000，用于读取所述存储器中的计算机程序并执行以下操作：
根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
可选的，所述DCI包括以下其中一项：
指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
指示激活的小区组Cellgroup内的载波ID的第二指示信息；
指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
可选的，所述Cell group表示主小区组MCG或者辅小区组SCG。
可选的，所述处理器1000还用于：
向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
可选的，所述处理器1000还用于：
向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
可选的，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
可选的，所述DCI为激活/去激活CG的第五指示信息。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1000代表的一个或多个处理器和存储器1020代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1010可以是多个元件， 即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1000负责管理总线架构和通常的处理，存储器1020可以存储处理器1000在执行操作时所使用的数据。
处理器1000可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序，用于按照获得的可执行指令执行本申请实施例提供的任一所述方法。处理器与存储器也可以物理上分开布置。
在此需要说明的是，本公开实施例提供的上述网络设备，能够实现上述应用于网络设备的降低时延的方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开的实施例还提供了一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述应用于终端的降低时延的方法，或者执行上述应用于网络设备的降低时延的方法。
所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流 程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
本公开的各个部件实施例可以以硬件实现，或者以在一个或者多个处理器上运行的软件模块实现，或者以它们的组合实现。本领域的技术人员应当理解，可以在实践中使用微处理器或者数字信号处理器(DSP)来实现根据本公开实施例的计算处理设备中的一些或者全部部件的一些或者全部功能。本公开还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者装置程序(例如，计算机程序和计算机程序产品)。这样的实现本公开的程序可以存储在计算机可读介质上，或者可以具有一个或者多个信号的形式。这样的信号可以从因特网网站上下载得到，或者在载体信号上提供，或者以任何其他形式提供。
例如，图10示出了可以实现根据本公开的方法的计算处理设备。该计算 处理设备传统上包括处理器1010和以存储器1020形式的计算机程序产品或者计算机可读介质。存储器1020可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。存储器1020具有用于执行上述方法中的任何方法步骤的程序代码1031的存储空间1030。例如，用于程序代码的存储空间1030可以包括分别用于实现上面的方法中的各种步骤的各个程序代码1031。这些程序代码可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。这些计算机程序产品包括诸如硬盘，紧致盘(CD)、存储卡或者软盘之类的程序代码载体。这样的计算机程序产品通常为如参考图11所述的便携式或者固定存储单元。该存储单元可以具有与图10的计算处理设备中的存储器1020类似布置的存储段、存储空间等。程序代码可以例如以适当形式进行压缩。通常，存储单元包括计算机可读代码1031’，即可以由例如诸如1010之类的处理器读取的代码，这些代码当由计算处理设备运行时，导致该计算处理设备执行上面所描述的方法中的各个步骤。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着，结合实施例描述的特定特征、结构或者特性包括在本公开的至少一个实施例中。此外，请注意，这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本公开的实施例可以在没有这些具体细节的情况下被实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本公开可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术 人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (41)

  1. 一种降低时延的方法，应用于终端，其特征在于，包括：
    接收下行控制信息DCI；
    根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  2. 根据权利要求1所述的方法，其特征在于，所述DCI包括以下其中一项：
    指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
    指示激活的小区组Cellgroup内的载波ID的第二指示信息；
    指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
    指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
  3. 根据权利要求2所述的方法，其特征在于，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
    根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
  4. 根据权利要求2所述的方法，其特征在于，所述Cell group表示主小区组MCG或者辅小区组SCG。
  5. 根据权利要求2所述的方法，其特征在于，在所述DCI包含第三指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
    根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
    根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
  6. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
  7. 根据权利要求3所述的方法，其特征在于，所述根据所述DCI，激活 或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
    接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
    根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
  8. 根据权利要求3所述的方法，其特征在于，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
    根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
  9. 根据权利要求2所述的方法，其特征在于，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
    所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
  10. 根据权利要求1所述的方法，其特征在于，所述DCI为激活/去激活CG的第五指示信息。
  11. 一种降低时延的方法，应用于网络设备，其特征在于，包括：
    根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  12. 根据权利要求11所述的方法，其特征在于，所述DCI包括以下其中一项：
    指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
    指示激活的小区组Cellgroup内的载波ID的第二指示信息；
    指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
    指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
  13. 根据权利要求12所述的方法，其特征在于，所述Cell group表示主 小区组MCG或者辅小区组SCG。
  14. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
  15. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
  16. 根据权利要求12所述的方法，其特征在于，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
    所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
  17. 根据权利要求11所述的方法，其特征在于，所述DCI为激活/去激活CG的第五指示信息。
  18. 一种终端，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收下行控制信息DCI；
    根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  19. 根据权利要求18所述的终端，其特征在于，所述DCI包括以下其中一项：
    指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
    指示激活的小区组Cellgroup内的载波ID的第二指示信息；
    指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
    指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
  20. 根据权利要求19所述的终端，其特征在于，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
    根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
  21. 根据权利要求19所述的终端，其特征在于，所述Cell group表示主小区组MCG或者辅小区组SCG。
  22. 根据权利要求19所述的终端，其特征在于，在所述DCI包含第三指示信息的情况下，所述根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输，包括：
    根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
    根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
  23. 根据权利要求19所述的终端，其特征在于，所述处理器还用于：
    接收第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
  24. 根据权利要求20所述的终端，其特征在于，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
    接收第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载；
    根据所述DCI和所述第二信令，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
  25. 根据权利要求20所述的终端，其特征在于，所述根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输，包括：
    根据预配置的配置授权CG对应的数据无线承载和所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行所述数据无线承载的PDCP复制传输。
  26. 根据权利要求19所述的终端，其特征在于，所述终端用于接收所述 DCI的载波为执行激活/去激活PDCP复制传输的主载波；
    所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活PDCP复制传输的辅载波。
  27. 根据权利要求18所述的终端，其特征在于，所述DCI为激活/去激活CG的第五指示信息。
  28. 一种网络设备，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  29. 根据权利要求28所述的网络设备，其特征在于，所述DCI包括以下其中一项：
    指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
    指示激活的小区组Cellgroup内的载波ID的第二指示信息；
    指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
    指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
  30. 根据权利要求29所述的网络设备，其特征在于，所述Cell group表示主小区组MCG或者辅小区组SCG。
  31. 根据权利要求29所述的网络设备，其特征在于，所述处理器还用于：
    向所述终端发送第一信令，所述第一信令用于配置所述DCI指示的载波ID与载波的映射关系，或者所述第一信令用于配置所述DCI指示的载波组ID与载波组的映射关系。
  32. 根据权利要求28所述的网络设备，其特征在于，所述处理器还用于：
    向所述终端发送第二信令，所述第二信令用于配置执行激活/去激活PDCP复制传输的数据无线承载。
  33. 根据权利要求29所述的网络设备，其特征在于，所述终端用于接收所述DCI的载波为执行激活/去激活PDCP复制传输的主载波；
    所述DCI指示的载波ID对应的载波为执行激活/去激活PDCP复制传输的辅载波，或者所述DCI指示的载波组ID对应的载波为执行激活/去激活 PDCP复制传输的辅载波。
  34. 根据权利要求28所述的网络设备，其特征在于，所述DCI为激活/去激活CG的第五指示信息。
  35. 一种降低时延的装置，应用于终端，其特征在于，包括：
    第一接收模块，用于接收下行控制信息DCI；
    第一处理模块，用于根据所述DCI，激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  36. 根据权利要求35所述的方法，其特征在于，所述DCI包括以下其中一项：
    指示激活PDCP复制传输的载波ID/载波组ID的第一指示信息；
    指示激活的小区组Cellgroup内的载波ID的第二指示信息；
    指示去激活PDCP复制传输的载波ID/载波组ID的第三指示信息；
    指示激活/去激活数据无线承载DRBm的PDCP复制传输的第四指示信息。
  37. 根据权利要求36所述的方法，其特征在于，在所述DCI包含第一指示信息或者第二指示信息的情况下，所述第一处理模块，包括：
    第一处理单元，用于根据所述DCI，激活或重新激活所述DCI指示的载波ID/载波组ID对应的载波上的CG，并在所述载波ID/载波组ID对应的载波上执行PDCP复制传输。
  38. 根据权利要求36所述的方法，其特征在于，在所述DCI包含第三指示信息的情况下，所述第一处理模块，包括：
    第二处理单元，用于根据所述DCI，去激活所述DCI指示的载波ID/载波组ID对应的载波上的CG和PDCP复制传输；或者
    第三处理单元，用于根据所述DCI，去激活所有载波上的CG和PDCP复制传输。
  39. 一种降低时延的装置，应用于网络设备，其特征在于，包括：
    第一发送模块，用于根据终端上报能力，向所述终端发送下行控制信息DCI，以使所述终端根据所述DCI激活/去激活配置授权CG和分组数据汇聚协议PDCP复制传输。
  40. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至10 任一项所述的降低时延的方法，或者执行权利要求11至17任一项所述的降低时延的方法。
  41. 一种计算机程序，包括计算机可读代码，当所述计算机可读代码在计算处理设备上运行时，导致所述计算处理设备执行根据权利要求1至10或11至17中任一项所述的降低时延的方法。
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