CN117730563A

CN117730563A - Wireless communication method, terminal device and network device

Info

Publication number: CN117730563A
Application number: CN202080099873.6A
Authority: CN
Inventors: 付喆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2024-03-19
Also published as: WO2021243608A1

Abstract

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which comprise the following steps: the terminal device receives the MAC CE in the duplicate transmission. And the terminal equipment determines whether the duplicate transmission is activated or not and/or copies the RLC information in the transmission according to the MAC CEs and the indication modes of the MAC CEs. Based on this, the terminal device may exclude meaningless information in RLC information of all network devices, thereby enabling the terminal device to accurately determine whether duplicate transmission is active and/or duplicate RLC information in transmission.

Description

Wireless communication method, terminal device and network device

Technical Field

The embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, a terminal device, and a network device.

Background

In order to improve the transmission reliability of high reliability low latency communication (Ultra-Reliable and Low Latency Communication, URLLC) traffic, a data duplication function is introduced in Release 15 (Release 15, rel-15) and Release 16 (Release 16, rel-16), which is performed in the packet data convergence protocol (Packet Data Convergence Protocol, PDCP), i.e. the same PDCP protocol data units (ProtocolDataUnit, PDU) are mapped to different radio link control (Radio Link Control, RLC) entities, respectively, wherein in Rel-15 the same PDCP PDU can be mapped to two RLC entities, which is suitable for carrier aggregation (Carrier Aggregation, CA) or Dual Connection (DC) scenarios. The same PDCP PDU may be mapped to four RLC entities in Rel-16, which is applicable not only to CA or DC scenarios, but also to combined CA and DC scenarios. Further, different RLC entities may be mapped onto different carriers at the medium access control (Media Access Control, MAC) layer.

The network device may indicate whether duplicate transmission is active through a MAC Control Element (CE) and/or whether RLC information in duplicate transmission, such as whether each RLC entity is active. For a network device transmitting a MAC CE, it may not acquire RLC information under other network devices, where a portion of the RLC information indicated by the MAC CE is meaningless, resulting in whether the duplicate transmission determined by the terminal device according to the MAC CE is active and/or the RLC information in the duplicate transmission is inaccurate.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a terminal device and a network device, wherein the terminal device can determine whether the duplicate transmission is activated or not and/or copy RLC information in the transmission according to an MAC CE in the duplicate transmission and an indication mode of the MAC CE. Based on this, the terminal device may exclude meaningless information in RLC information of all network devices, thereby enabling the terminal device to accurately determine whether duplicate transmission is active and/or duplicate RLC information in transmission.

In a first aspect, a wireless communication method is provided, including: the terminal device receives the MAC CE in the duplicate transmission. And the terminal equipment determines whether the duplicate transmission is activated or not and/or copies the RLC information in the transmission according to the MAC CEs and the indication modes of the MAC CEs.

In a second aspect, a wireless communication method is provided, including: the first network device sends the MAC CE in the duplicate transmission. The indication mode of the MAC CEs is used for determining whether the duplicate transmission is activated or not and/or copying the RLC information in the transmission.

In a third aspect, a terminal device is provided for performing the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner.

In a fourth aspect, a network device is provided for performing the method of the second aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof.

A ninth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

By the technical scheme, the terminal equipment can exclude meaningless information in the RLC information of all network equipment, so that the terminal equipment can accurately determine whether duplicate transmission is activated or not and/or duplicate the RLC information in transmission. For example: when the MAC CE indication means indicates that the MAC CE includes RLC information of a network device transmitting the MAC CE, no meaningless RLC information exists in this case. When the MAC CE indication manner indicates that the MAC CE includes RLC information of all network devices corresponding to the DRB, there may be meaningless RLC information in this case, but in the present application, the first network device may acquire RLC information of other network devices in advance, or the terminal device may ignore meaningless RLC information through the indication information. When the MAC CE indication mode indicates that the MAC CE includes: RLC information from a non-first network device, that is, RLC information including meaningless RLC information, may be obtained in advance by the terminal device, where the RLC information includes RLC information from all network devices corresponding to the DRB. Based on this, the terminal device may exclude meaningless information in RLC information of all network devices, thereby enabling the terminal device to accurately determine whether duplicate transmission is active and/or duplicate RLC information in transmission.

Drawings

FIG. 1 is a schematic diagram of replication transmission provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a MAC CE format in Rel-15 provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a MAC CE format in Rel-16 provided in an embodiment of the present application;

fig. 4 is a CA scene diagram provided in an embodiment of the present application;

FIG. 5 is a DC scene graph provided by an embodiment of the present application;

fig. 6 is a ca+dc scene graph provided in an embodiment of the present application;

fig. 7 is a schematic flow chart diagram of a wireless communication method according to an embodiment of the present application;

fig. 8 shows a schematic block diagram of a terminal device 800 according to an embodiment of the present application;

fig. 9 shows a schematic block diagram of a network device 900 according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device 400 provided in an embodiment of the present application;

FIG. 11 is a schematic block diagram of an apparatus of an embodiment of the present application;

fig. 12 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden for the embodiments herein, are intended to be within the scope of the present application.

As described above, the duplicate transmission of Rel-15 is suitable for CA scenarios or DC scenarios, and for CA scenarios, a scheme supporting data duplicate transmission (data duplicate) utilizes the duplicate data function of PDCP, so that the same PDCP PDU is transmitted to two RLC entities (i.e., two different logical channels) respectively, and finally, the same PDCP PDU is guaranteed to be capable of being transmitted on different physical layer aggregated carriers, thereby achieving a frequency diversity gain to improve the reliability of data transmission. As shown in DRB1 and DRB3 in fig. 1, specifically, PDCP PDUs in CA scenarios corresponding to DRB1 and DRB3 are mapped onto two RLC entities, two RLC entities corresponding to DRB1 may be mapped onto different MAC entities in a primary cell group (Master Cell Group, MCG), and two RLC entities corresponding to DRB3 may be mapped onto different MAC entities in a secondary cell group (Secondary Cell Group, SCG). For the DC scene, the scheme supporting data duplication transmission utilizes the duplication data function of PDCP to ensure that the same PDCP PDU is respectively transmitted to two RLC entities, and the two RLC entities respectively correspond to different MAC entities. As in DRB2 in fig. 1, specifically, two RLC entities corresponding to DRB2 may be mapped onto different MAC entities in MCG and SCG, respectively.

In Rel-15, the network device may indicate that the duplicate transmission is in an active or inactive state through the MAC CE. The MAC CE may also be referred to as a copy active/inactive MAC CE. It should be understood that "the duplicate transmission is in an active state or an inactive state" in this application means that the duplicate data function of the PDCP corresponding to at least one DRB is in an active state or an inactive state.

Specifically, the MAC CE format in Rel-15 is shown in FIG. 2, where one octet of copy activated/deactivated MAC CE is identified by a MAC subheader with (Logic Channel Identifier, LCID). It has a fixed size and consists of an octet containing eight D fields. For the MAC entity, copy activation/deactivation MAC CE is defined as follows.

Di indicates that the duplicate data function (i.e., PDCP duplicate transmission or duplicate transmission) of the PDCP corresponding to the DRBi is in an active state or an inactive state, wherein i is the identification of the ith DRB in all DRBs corresponding to the PDCP duplicate transmission, the RLC entity and the MAC entity. Di=1, indicating that PDCP copy transmission of DRBi is to be activated. Di=0, indicating that PDCP copy transmission of DRBi is deactivated.

The duplicate transmission of Rel-16 applies to CA scenarios and/or DC scenarios, where the same PDCP PDU may be configured for four RLC entities. In Rel-16, the network device may indicate the RLC information in duplicate transmission through the MAC CE.

Optionally, the RLC information includes: the identity of at least one RLC entity in the transmission is duplicated and/or the identity used to identify whether the at least one RLC entity is in an active state. It should be understood that "the identification of at least one RLC entity in duplicate transmission" in the present application refers to the identification of at least one RLC entity in duplicate transmission corresponding to one DRB.

Specifically, the format of the MAC CE in Rel-16 is shown in fig. 3, where the MAC CE is used to indicate that PDCP copy transmission corresponding to the RLC entity in the copy transmission is in an active or inactive state, and the MAC CE is identified by a MAC subheader with an LCID. It has a fixed size and consists of an octet containing eight D fields. The MAC CE includes: DRB ID and RLCi.

The DRB ID represents the identity of the DRB of the MAC CE application described above. The DRB ID is 5 bits in length.

RLCi indicates an activated/deactivated state of PDCP copy transmission corresponding to the i-th RLC entity, where i is an identity of the i-th RLC entity among the RLC entities corresponding to the DRB. Rlci=1, indicating that the PDCP duplicate transmission corresponding to the i-th RLC entity will be activated. Rlci=0, indicating that the PDCP duplicate transmission corresponding to the i-th RLC entity is to be deactivated.

In summary, the network device may indicate, via the MAC CE, whether duplicate transmissions are active and/or whether RLC information in duplicate transmissions, such as whether the respective RLC entity is active. For a network device transmitting a MAC CE, each RLC entity herein may include RLC information under other network devices, and thus, when the network device transmitting the MAC CE does not acquire RLC information under other network devices, the RLC information indicated by the MAC CE is meaningless, resulting in whether duplicate transmission determined by the terminal device according to the MAC CE is activated, and/or RLC information in the duplicate transmission is inaccurate. Thereby causing a problem of low reliability of data transmission.

Based on the technical problems, the application provides a wireless communication method, terminal equipment and network equipment. The gist of the invention of the application is: there will be different indication modes of the MAC CE in the duplicate transmission, and the terminal device will determine whether the duplicate transmission is active or not according to the different indication modes, and/or duplicate RLC information in the transmission to discard meaningless RLC information.

The embodiments of the present application may be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system over unlicensed spectrum, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), next generation communication system or other communication system, etc.

The frequency spectrum of the application in the embodiments of the present application is not limited. For example, embodiments of the present application may be applied to licensed spectrum as well as unlicensed spectrum.

Optionally, the communication system in the embodiment of the present application may be applied to a CA scenario, a DC scenario, or a combination scenario of CA and DC.

For example, fig. 4 is a CA scenario diagram provided in an embodiment of the present application, as shown in fig. 4, a communication system may include a network device 110 and a terminal device 120, where the network device 110 and the terminal device 120 implement data transmission through CA technology, and the network device 110 may be a device that communicates with the terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 4 exemplarily illustrates one network device and one terminal device, alternatively, the communication system may include a plurality of network devices and each network device may include other number of terminal devices within a coverage area of the network device, which is not limited in the embodiment of the present application.

Optionally, the communication system may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

For example, fig. 5 is a DC scenario diagram provided in an embodiment of the present application, as shown in fig. 5, a communication system may include a network device 210 and a terminal device 220, where the network device 210 and the terminal device 220 implement data transmission through DC technology, and the network device 210 may be a device that communicates with the terminal device 220 (or referred to as a communication terminal, a terminal). Network device 210 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 5 exemplarily shows two network devices and one terminal device, alternatively, the communication system may include a plurality of network devices and each network device may include other number of terminal devices within a coverage area of the network device, which is not limited in the embodiment of the present application.

For example, fig. 6 is a ca+dc scenario diagram provided in an embodiment of the present application, as shown in fig. 6, a communication system may include a network device 310 and a terminal device 320, where the network device 310 and the terminal device 320 implement data transmission through a dc+ca technology, for example: here one network device 310 communicates with a terminal device 320 via CA technology, while the terminal device 320 communicates with both network devices 310 using DC technology. Also, the network device 310 may be a device that communicates with a terminal device 320 (or referred to as a communication terminal, terminal). Network device 310 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 6 exemplarily shows two network devices and one terminal device, alternatively, the communication system may include a plurality of network devices and each network device may include other number of terminal devices within a coverage area of the network device, which is not limited in the embodiment of the present application.

Embodiments of the present application describe various embodiments in connection with a terminal device and a network device, wherein: a terminal Equipment (UE) may also be called a User Equipment, access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, user device, or the like. The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, and a next generation communication system, such as a terminal device in an NR network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

The network device may be a device for communicating with the mobile device, the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an Access Point, or a vehicle device, a wearable device, and a network device (gNB) in NR network, or a network device in future evolved PLMN network, etc.

In the embodiment of the present application, the network device provides services for a cell, and the terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

Fig. 7 is a schematic flow chart of a wireless communication method according to an embodiment of the present application, specifically, as shown in fig. 7, the method may include the steps of:

step S701: the first network device sends the MAC CE in the duplicate transmission to the terminal device.

Step S702: and the terminal equipment determines whether the duplicate transmission is activated or not and/or copies the RLC information in the transmission according to the MAC CEs and the indication modes of the MAC CEs.

Wherein the first network device is a network device for transmitting a MAC CE. For example: the first network device may be a base station corresponding to at least one of a Primary Cell (PCell), a Secondary Cell (SCell), or a Primary Secondary Cell (Primary Secondary Cell, PSCell).

Optionally, the MAC CE in the duplicate transmission is used to determine whether the duplicate transmission is active.

For example, the MAC CE in duplicate transmission is shown with reference to fig. 2, where Di indicates that the duplicate data function of PDCP corresponding to DRBi (i.e., PDCP duplicate transmission) is in an active state or inactive state, where i is the identity of the i-th DRB in all DRBs configured with PDCP duplicate transmission, RLC entity, and MAC entity. Di=1, indicating that PDCP copy transmission of DRBi is to be activated. Di=0, indicating that PDCP copy transmission of DRBi is deactivated.

Optionally, the MAC CE in duplicate transmission is a MAC CE for determining RLC information in duplicate transmission.

Illustratively, a MAC CE in duplicate transmission is shown with reference to fig. 3, where the DRB ID represents the identity of the DRB to which the MAC CE applies. The DRB ID is 5 bits in length. RLCi indicates an activated/deactivated state of PDCP copy transmission corresponding to the i-th RLC entity, where i is an identity of the i-th RLC entity among the RLC entities corresponding to the DRB. Rlci=1, indicating that the PDCP duplicate transmission corresponding to the i-th RLC entity will be activated. Rlci=0, indicating that the PDCP duplicate transmission corresponding to the i-th RLC entity is to be deactivated.

Illustratively, the DRB is a bearer of a first network device or MAC entity corresponding to at least one RLC entity. Specifically, the activation and deactivation instruction of the DRB or the RLC entity of the DRB transmitted by the CA copy of the SCG is sent through the network equipment corresponding to the SCG.

Optionally, the MAC CE in the duplicate transmission is a MAC CE for determining whether the duplicate transmission is active, and the RLC information in the duplicate transmission.

When the state of duplicate transmission indicated by the MAC CE in duplicate transmission is inconsistent with the state of PDCP duplicate transmission corresponding to the RLC entity, the state of duplicate transmission indicated by the MAC CE in duplicate transmission is determined, or the state of PDCP duplicate transmission corresponding to the RLC entity is determined.

When the state of duplicate transmission indicated by the MAC CE in duplicate transmission is inconsistent with the state of PDCP duplicate transmission corresponding to the combination of all RLC entities, the state of duplicate transmission indicated by the MAC CE in duplicate transmission is determined, or the state of PDCP duplicate transmission corresponding to the RLC entity is determined.

For example, if the MAC CE in the duplicate transmission indicates that the duplicate transmission corresponding to one DRB is in an active state and the PDCP duplicate transmission corresponding to the ith RLC entity corresponding to the DRB is in an inactive state, it is finally determined that the PDCP duplicate transmission corresponding to the ith RLC entity is in an inactive state.

For example, if the MAC CE in the duplicate transmission indicates that the duplicate transmission corresponding to one DRB is in an inactive state and the PDCP duplicate transmission corresponding to the ith RLC entity corresponding to the DRB is in an active state, it is finally determined that the PDCP duplicate transmission corresponding to the ith RLC entity is in an inactive state.

Optionally, the MAC CE includes: RLC information of the first network device.

Optionally, the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a DRB corresponding to a MAC CE; for example: the MAC CE includes: RLC information of all second network devices corresponding to the DRB.

It should be understood that the DRB corresponding to the MAC CE refers to the DRB involved in the duplicate transmission indicated by the MAC CE. The network device corresponding to the DRB refers to a network device using the DRB as a bearer.

Optionally, the MAC CE includes: RLC information of at least one third network device, the third network device being a network device of the at least one second network device other than the first network device.

Optionally, the indication manner of the MAC CE is used to indicate that the MAC CE includes RLC information of the first network device; such an indication may be referred to as a first indication.

Optionally, the indication mode of the MAC CE is used to indicate that the MAC CE includes RLC information of at least one second network device; this indication is referred to as a second indication.

Optionally, the indication manner of the MAC CE is used to indicate that the MAC CE includes RLC information of at least one third network device, and this indication manner is referred to as a third indication manner.

Optionally, the indication manner of the MAC CE is predefined, or indicated by the first indication information.

Optionally, the first indication information is an LCID or an extended logical channel identification (extended Logical Channel Identification, eclcid) sent by the first network device. The LCID or eLCID corresponds to the identification of the MAC CE. The LCID or eLCID is a reserved value in the current LCID or eLCID value range.

For example, assuming that there are two of the above three indication modes, such as the first indication mode and the second indication mode, the first indication mode is adopted when the reserved value (i.e., the first indication information) is 98, and the second indication mode is adopted when the reserved value (i.e., the first indication information) is 99. Alternatively, the first indication mode is indicated to be used when the reserved value (i.e., the first indication information) is 99, and the second indication mode is indicated to be used when the reserved value (i.e., the first indication information) is 98.

For example, assuming that the three indication modes exist at present, the first indication mode is indicated to be adopted when the reserved value (i.e., the first indication information) is 98, and the second indication mode is indicated to be adopted when the reserved value (i.e., the first indication information) is 99. When the reservation value (i.e., the first indication information) is 100, the third indication mode is adopted. Alternatively, when the reserved value (i.e., the first indication information) is 100, the first indication mode is adopted, and when the reserved value (i.e., the first indication information) is 99, the second indication mode is adopted. When the reservation value (i.e., the first indication information) is 98, the third indication mode is adopted.

Note that, the correspondence between the reserved value and the indication mode of the MAC CE is not limited in this application.

The LCID-based scheme used in the present application may be understood as a scheme based on MAC CE or MAC PDU information.

Optionally, the first indication information is a new parameter or a new value of an existing parameter in a radio resource control (Radio Resource Control, RRC) message or downlink control information (Downlink Control Information, DCI).

Alternatively, the network device, such as the first network device, the second network device, or the third network device, may use only one of the three indication manners.

Optionally, the network device, such as the first network device, the second network device, or the third network device, supports at least one of the three indication modes.

The following details about step S702:

if the MAC CE includes: the indication manner of the MAC CE is the first indication manner described above for the RLC information of the first network device, in which case the MAC CE does not include RLC information of other network devices than the first network device, i.e., no meaningless RLC information exists. Thus, the terminal device may determine whether duplicate transmission is active and/or duplicate RLC information in transmission based on the MAC CE. For example: the terminal equipment determines that the RLC entity 1 under the first network equipment is in an active state and the RLC entities 2-4 are in an inactive state according to the MAC CE.

If the MAC CE includes: the indication of the RLC information of the at least one second network device is the second indication described above, in which case the MAC CE may include RLC information of other network devices than the first network device, i.e. meaningless RLC information may exist. Based on this, the present application provides at least two alternatives, so that the terminal device can accurately determine whether duplicate transmissions are active and/or whether RLC information in the duplicate transmissions.

Alternative one: the first network device or other network device sends indication information to the terminal device, the indication information being used to indicate whether RLC information of at least one third network device is ignored, i.e. whether RLC information of a non-first network device is ignored. If the indication information indicates to ignore the RLC information of at least one third network device, it indicates that the terminal device may discard the RLC information (i.e., meaningless RLC information) of at least one third network device according to the indication information even if the terminal device acquires the RLC information of at least one second network device corresponding to the DRB.

The instruction information may be the first instruction information or the second instruction information.

Optionally, the second indication information is carried in an RRC message or a DCI message.

Optionally, the second indication information is a new parameter or a new value of an existing parameter in the RRC message or the DCI message.

Optionally, the second indication information is LCID or eclpid sent by the first network device. Specifically, according to the values of different LCIDs, different information is understood, namely whether to ignore or not and whether to use or not. Illustratively, the LCID-based manner may also be understood as a manner based on MAC CE or MAC PDU information.

Alternative two: the acquired RLC information is meaningful information through communication or interaction between the first network device and other network devices, and based on the precondition, the MAC CE includes: the RLC information of at least one second network device is meaningful RLC information. Thus, the terminal device may determine whether duplicate transmission is active and/or duplicate RLC information in transmission based on the MAC CE.

Optionally, the MAC CE includes: RLC information of at least one third network device. The indication manner of the MAC CE is the third indication manner described above, in which case the MAC CE includes meaningless RLC information, and it is assumed that the terminal device has previously acquired RLC information of at least one second network device. Based on this, the terminal device may exclude meaningless information in the RLC information of the at least one second network device to obtain RLC information of the first network device, and thus the terminal device may determine whether duplicate transmission is activated and/or duplicate RLC information in transmission according to the RLC information of the first network device.

It should be noted that, the above description is for the case where a duplicate transmission of one MAC CE is received, and the following description will be made for the case where a plurality of MAC CEs exist in the duplicate transmission:

alternative one: if the number of the MAC CEs is multiple and DRBs corresponding to the multiple MAC CEs are the same, but the information about whether the duplicate transmission indicated by the multiple MAC CEs is activated is different and/or the RLC information about the duplicate transmission indicated by the multiple MAC CEs is different, the terminal equipment determines whether the duplicate transmission is activated and/or the RLC information in the duplicate transmission according to the indication mode of one first MAC CE and the first MAC CE in the multiple MAC CEs.

Optionally, the first MAC CE is a MAC CE selected from a plurality of MAC CEs according to a preset rule.

Optionally, the first MAC CE is a MAC CE from the master node or a MAC CE of the corresponding MCG; alternatively, the first MAC CE is a MAC CE from the secondary node or a MAC CE of the corresponding SCG. That is, the above-mentioned preset rule is that a MAC CE from a node or a MAC CE of a corresponding MCG is used as the first MAC CE. Alternatively, the MAC CE from the secondary node or the MAC CE of the corresponding SCG is taken as the first MAC CE. That is, when the indication information is different, the indication information of the specific node is in control.

Optionally, the primary node refers to a base station corresponding to the PCell, and the secondary node refers to a base station corresponding to the PSCell.

For example, if there are two MAC CEs, such as MAC CE1 and MAC CE2, in the duplicate transmission, and the DRBs corresponding to the two MAC CEs are the same, that is, both MAC CEs are used to indicate that the duplicate transmission corresponding to the same DRB is in an active state or an inactive state, and/or are used to indicate RLC information in the duplicate transmission corresponding to the same DRB. Based on this, the terminal device determines whether duplicate transmission is active and/or duplicates RLC information in transmission in an indication manner of MAC CE1 and MAC CE 1. Or, the terminal device determines whether the duplicate transmission is activated and/or copies RLC information in the transmission in an indication manner of the MAC CE2 and the MAC CE 2.

Alternative two: if the number of the MAC CEs is multiple and DRBs corresponding to the plurality of the MAC CEs are the same, but the information indicating whether the duplicate transmission is activated or not is different by the plurality of the MAC CEs, and/or the RLC information indicating the duplicate transmission is different by the plurality of the MAC CEs, the terminal equipment determines the RLC information corresponding to the second MAC CEs in the duplicate transmission according to the second MAC CEs and the indication modes corresponding to the second MAC CEs. That is, when the indication information is different, the indication information of the corresponding node is in control.

Optionally, the second MAC CE is a MAC CE from a node corresponding to the RLC entity or a MAC CE corresponding to a Cell Group (CG) where the RLC entity is located.

It should be understood that RLC information corresponding to the second MAC CE refers to RLC information in a network device or node for transmitting the second MAC CE or RLC information in a CG in which the network device or node for transmitting the second MAC CE is located.

For example, if there are two MAC CEs, such as MAC CE1 and MAC CE2, in the duplicate transmission, and the DRBs corresponding to the two MAC CEs are the same, that is, both MAC CEs are used to indicate that the duplicate transmission corresponding to the same DRB is in an active state or an inactive state, and/or are used to indicate RLC information in the duplicate transmission corresponding to the same DRB. Based on this, the terminal device determines to which node the RLC entity corresponding to the duplicate transmission corresponds, and supposing that there are two RLC entities, RLC entity 1 and RLC entity 2, respectively, the node corresponding to RLC entity 1 is node 1, and the node corresponding to RLC entity 2 is node 2. The MAC CE1 sent by the node 1 indicates that the RLC entity 1 is in an active state, and the RLC entity 2 is in an active state, and the terminal device considers that the RLC entities 1 and 2 are active. Then, the node 2 transmits a MAC CE2 indicating that the RLC entity 1 is in an inactive state and the RLC entity 2 is in an inactive state. Based on this, the terminal device considers that RLC entity 1 is in an active state and RLC entity 2 is in an inactive state.

For example, if there are two MAC CEs, such as MAC CE1 and MAC CE2, in the duplicate transmission, and the DRBs corresponding to the two MAC CEs are the same, that is, both MAC CEs are used to indicate that the duplicate transmission corresponding to the same DRB is in an active state or an inactive state, and/or are used to indicate RLC information in the duplicate transmission corresponding to the same DRB. Based on this, the terminal device determines which CG the RLC entity corresponding to the duplicate transmission corresponds to, and supposedly there are two RLC entities, RLC entity 1 and RLC entity 2, respectively, an MCG corresponding to RLC entity 1, an SCG corresponding to RLC entity 2, and an MAC CE1 sent by a node in the MCG indicates that RLC entity 1 is in an active state, and RLC entity 2 is in an active state. The terminal device considers that RLC entity 1,2 is active. Then, the node in SCG sends MAC CE2, indicating that RLC entity 1 is in inactive state and RLC entity 2 is in inactive state. Based on this, the terminal device considers that RLC entity 1 is in an active state and RLC entity 2 is in an inactive state.

In summary, in the present application, the terminal device may determine whether the duplicate transmission is activated and/or whether the RLC information in the duplicate transmission is activated according to the MAC CE and the indication manner of the MAC CE in the duplicate transmission. For example: when the MAC CE indication means indicates that the MAC CE includes RLC information of a network device transmitting the MAC CE, no meaningless RLC information exists in this case. When the MAC CE indication manner indicates that the MAC CE includes RLC information of all second network devices corresponding to the DRB, there may be meaningless RLC information in this case, but in the present application, the first network device may obtain RLC information of other network devices in advance, or the terminal device may ignore meaningless RLC information through the first indication information or the second indication information. When the MAC CE indication mode indicates that the MAC CE includes: the RLC information of at least one third network device, that is, the RLC information including meaningless RLC information, and the terminal device may obtain RLC information of all network devices corresponding to the DRB in advance. Based on this, the terminal device may exclude meaningless information in RLC information of all network devices, thereby enabling the terminal device to accurately determine whether duplicate transmission is active and/or duplicate RLC information in transmission.

Fig. 8 shows a schematic block diagram of a terminal device 800 according to an embodiment of the present application. As shown in fig. 8, the terminal device 800 includes:

a communication unit 810 for receiving a media access control-control element MAC CE in a duplicate transmission.

And a processing unit 820, configured to determine whether duplicate transmission is activated and/or whether RLC information in the duplicate transmission is activated according to the MAC CE and the indication manner of the MAC CE.

Optionally, the MAC CE includes: RLC information of a first network device, which is a network device for transmitting the MAC CE. Or,

the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a data radio bearer DRB corresponding to the MAC CE. Or,

the MAC CE includes: RLC information of at least one third network device, the third network device being a network device of the at least one second network device other than the first network device.

Optionally, the indication manner of the MAC CE is used to indicate that the MAC CE includes RLC information of the first network device. Or,

the indication mode of the MAC CE is used for indicating that the MAC CE includes RLC information of at least one second network device. Or,

the indication mode of the MAC CE is used for indicating that the MAC CE includes RLC information of at least one third network device.

Optionally, the first indication information is LCID or eclcid sent by the first network device.

Optionally, the LCID or eclcid corresponds to an identification MAC CE.

Optionally, the value of LCID or eclcid is a reserved value in the current LCID or current eclcid value range.

Optionally, the first indication information is further used to indicate whether RLC information of the at least one third network device is ignored.

Optionally, the first indication information is carried in an RRC message or a DCI message.

Optionally, the first indication information is a new parameter or a new value of an existing parameter in the RRC message or the DCI message.

Optionally, the communication unit is further configured to receive second indication information, where the second indication information is configured to indicate whether RLC information of the at least one third network device is ignored.

Optionally, if there are multiple MAC CEs and DRBs corresponding to the multiple MAC CEs are the same, the processing unit 820 is specifically configured to: determining whether duplicate transmission is activated and/or copying RLC information in the transmission according to a first MAC CE of the plurality of MAC CEs and an indication manner of the first MAC CE.

Optionally, the first MAC CE is a MAC CE from the master node or a MAC CE of a corresponding master cell group MCG.

Alternatively, the first MAC CE is a MAC CE from a secondary node or a MAC CE of a corresponding secondary cell group SCG.

Optionally, if there are multiple MAC CEs and DRBs corresponding to the multiple MAC CEs are the same, the processing unit 820 is specifically configured to: and determining the RLC information corresponding to the second MAC CE in the duplicate transmission according to the second MAC CE and the indication mode corresponding to the second MAC CE.

Optionally, the second MAC CE is a MAC CE from a node corresponding to the RLC entity or a MAC CE corresponding to the CG where the RLC entity is located.

Optionally, the MAC CE is a MAC CE used in duplicate transmission to indicate whether the RLC is in an active state or an inactive state; and/or, the MAC CE is a MAC CE for indicating that the duplicate transmission is in an active state or an inactive state.

Optionally, the RLC information in the duplicate transmission includes: the identity of at least one RLC entity in the transmission is duplicated and/or the identity used to identify whether the at least one RLC entity is in an active state.

It should be understood that the terminal device 800 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 800 are respectively for implementing the corresponding flow of the terminal device in the method shown in fig. 7, which is not described herein for brevity.

Fig. 9 shows a schematic block diagram of a network device 900 according to an embodiment of the present application. As shown in fig. 9, a network device 900 is used as a first network device, and the network device 900 includes:

a communication unit 910 for transmitting a media access control-control element MAC CE in a duplicate transmission.

The indication mode of the MAC CEs is used for determining whether the duplicate transmission is activated or not and/or copying the RLC information in the transmission.

Optionally, the MAC CE includes: RLC information of the first network device. Or,

Optionally, the LCID or eclcid corresponds to an identification MAC CE.

Optionally, the communication unit 910 is further configured to send second indication information, where the second indication information is used to indicate whether RLC information of the at least one third network device is ignored.

It should be understood that the network device 900 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 900 are respectively for implementing the corresponding flow of the network device in the method shown in fig. 7, which is not described herein for brevity.

Fig. 10 is a schematic structural diagram of a communication device 400 provided in an embodiment of the present application. The communication device 400 shown in fig. 10 comprises a processor 410, from which the processor 410 may call and run a computer program to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 10, the communication device 400 may also include a memory 420. Wherein the processor 410 may call and run a computer program from the memory 420 to implement the methods in embodiments of the present application.

Wherein the memory 420 may be a separate device from the processor 410 or may be integrated into the processor 410.

Optionally, as shown in fig. 10, the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Among other things, transceiver 430 may include a transmitter and a receiver. Transceiver 430 may further include antennas, the number of which may be one or more.

Optionally, the communication device 400 may be specifically a network device in the embodiment of the present application, and the communication device 400 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 400 may be specifically a terminal device in the embodiment of the present application, and the communication device 400 may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 11 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 500 shown in fig. 11 includes a processor 510, and the processor 510 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

Optionally, as shown in fig. 11, the apparatus 500 may further comprise a memory 520. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the methods in embodiments of the present application.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

Optionally, the apparatus 500 may further comprise an input interface 530. The processor 510 may control the input interface 530 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the apparatus 500 may further comprise an output interface 540. Wherein the processor 510 may control the output interface 540 to communicate with other devices or chips, and in particular may output information or data to other devices or chips.

Optionally, the apparatus may be applied to a network device in the embodiments of the present application, and the apparatus may implement a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the apparatus may be applied to a terminal device in the embodiment of the present application, and the apparatus may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, a system-on-chip or a system-on-chip, etc.

Fig. 12 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in fig. 12, the communication system 600 includes a terminal device 610 and a network device 620.

The terminal device 610 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 620 may be used to implement the corresponding functions implemented by the network device or the base station in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

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

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device or a base station in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device or the base station in each method of the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device or a base station in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding flows implemented by the network device or the base station in the methods in the embodiments of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device or a base station in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device or the base station in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, and for brevity, will not be described herein.

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

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

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

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

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. For such understanding, the technical solutions of the present application may be embodied in essence or in a part contributing to the prior art or in the form of a software product 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.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the terminal equipment receives a media access control-control element (MAC CE) in the copy transmission;

and the terminal equipment determines whether the duplicate transmission is activated or not and/or controls RLC information in the duplicate transmission according to the MAC CE and the indication mode of the MAC CE.
The method of claim 1, wherein the MAC CE comprises: RLC information of a first network device, the first network device being a network device for transmitting the MAC CE;

or,

the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a data radio bearer DRB corresponding to the MAC CE;

or,

the MAC CE includes: RLC information of at least one third network device, the third network device being a network device of at least one second network device other than the first network device.
The method according to claim 2, wherein the indication means of the MAC CE is used to indicate that the MAC CE includes RLC information of the first network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one second network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one third network device.
A method according to claim 3, characterized in that the indication means of the MAC CE is predefined or indicated by a first indication information.
The method of claim 4, wherein the first indication information is a logical channel identification LCID or an extended logical channel identification eclcid transmitted by the first network device.
The method of claim 5, wherein the LCID or eclcid correspondence identifies the MAC CE.
The method of claim 4 or 5, wherein the LCID or eclcd value is a reserved value in a current LCID or current eclcd value range.
The method according to any of claims 4-7, wherein the first indication information is further used to indicate whether RLC information of the at least one third network device is to be ignored.
The method according to claim 4, wherein the first indication information is carried in a radio resource control, RRC, message or a downlink control information, DCI, message.
The method of claim 9, wherein the first indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The method of any one of claims 2-7, further comprising:

the terminal device receives second indication information, where the second indication information is used to indicate whether to ignore RLC information of the at least one third network device.
The method of claim 11, wherein the second indication information is carried in an RRC message or a DCI message.
The method of claim 12, wherein the second indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The method according to claim 1, wherein if the number of the MAC CEs is plural and DRBs corresponding to the plural MAC CEs are the same, the terminal device determines whether the duplicate transmission is activated according to the MAC CEs and the indication manner of the MAC CEs, and/or, RLC information in the duplicate transmission includes:

The terminal equipment determines whether the duplicate transmission is activated or not and/or RLC information in the duplicate transmission according to a first MAC CE of a plurality of MAC CEs and an indication mode of the first MAC CE.
The method of claim 14, wherein the first MAC CE is a MAC CE selected from a plurality of the MAC CEs according to a preset rule.
The method according to claim 15, wherein the first MAC CE is a MAC CE from a master node or a MAC CE of a corresponding master cell group MCG;

or,

the first MAC CE is a MAC CE from a secondary node or a MAC CE of a corresponding secondary cell group SCG.
The method according to claim 1, wherein if the number of the MAC CEs is plural and DRBs corresponding to the plural MAC CEs are the same, the terminal device determines whether the duplicate transmission is activated according to the MAC CEs and the indication manner of the MAC CEs, and/or, RLC information in the duplicate transmission includes:

and the terminal equipment determines the RLC information corresponding to the second MAC CE in the duplicate transmission according to the second MAC CE and the indication mode corresponding to the second MAC CE.
The method of claim 17, wherein the second MAC CE is a MAC CE from a node to which the RLC entity corresponds or a MAC CE to which the CG to which the RLC entity belongs corresponds.
The method according to any of claims 1-18, wherein the MAC CE is a MAC CE in the duplicate transmission indicating that RLC is in an active or inactive state;

and/or the number of the groups of groups,

the MAC CE is a MAC CE for indicating whether the duplicate transmission is in an active state or an inactive state.
The method according to any of claims 1-19, wherein replicating RLC information in transmission comprises: an identification of at least one RLC entity in the duplicate transmission, and/or an identification for identifying whether the at least one RLC entity is in an active state.
A method of wireless communication, comprising:

the first network device sends a media access control-control element (MAC CE) in duplicate transmission;

the indication mode of the MAC CE and the MAC CE is used for determining whether the duplicate transmission is activated or not, and/or controlling RLC information by a wireless link in the duplicate transmission.
The method of claim 21, wherein the MAC CE comprises: RLC information of the first network device;

or,

the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a data radio bearer DRB corresponding to the MAC CE;

Or,

the MAC CE includes: RLC information of at least one third network device, the third network device being a network device of at least one second network device other than the first network device.
The method of claim 22, wherein the indication of the MAC CE is used to indicate that the MAC CE includes RLC information of the first network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one second network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one third network device.
The method of claim 23, wherein the indication manner of the MAC CE is predefined or indicated by the first indication information.
The method of claim 24, wherein the first indication information is a logical channel identification LCID or an extended logical channel identification eclcid transmitted by the first network device.
The method of claim 25, wherein the LCID or eclcid correspondence identifies the MAC CE.
The method of claim 25 or 26, wherein the LCID or eclcd value is a reserved value in a current LCID or current eclcd value range.
The method according to any of claims 24-27, wherein the first indication information is further used to indicate whether RLC information of the at least one third network device is to be ignored.
The method according to claim 24, wherein the first indication information is carried in a radio resource control, RRC, message or a downlink control information, DCI, message.
The method of claim 29, wherein the first indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The method according to any one of claims 22-27, further comprising:

the first network device sends second indication information, where the second indication information is used to indicate whether RLC information of the at least one third network device is ignored.
The method of claim 31, wherein the second indication information is carried in an RRC message or a DCI message.
The method of claim 32, wherein the second indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The method according to any of claims 21-33, wherein the MAC CE is a MAC CE in the duplicate transmission indicating that RLC is in an active or inactive state;

And/or the number of the groups of groups,

the MAC CE is a MAC CE for indicating whether the duplicate transmission is in an active state or an inactive state.
The method according to any of claims 21-34, wherein replicating RLC information in transmission comprises: an identification of at least one RLC entity in the duplicate transmission, and/or an identification for identifying whether the at least one RLC entity is in an active state.
A terminal device, comprising:

a communication unit for receiving a media access control-control element, MAC CE, in a duplicate transmission;

and the processing unit is used for determining whether the duplicate transmission is activated or not and/or controlling RLC information in the duplicate transmission according to the MAC CEs and the indication modes of the MAC CEs.
The terminal device of claim 36, wherein the MAC CE comprises: RLC information of a first network device, the first network device being a network device for transmitting the MAC CE;

or,

the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a data radio bearer DRB corresponding to the MAC CE;

or,

The MAC CE includes: RLC information of at least one third network device, the third network device being a network device of at least one second network device other than the first network device.
The terminal device according to claim 37, wherein the indication means of the MAC CE is configured to indicate that the MAC CE includes RLC information of the first network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one second network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one third network device.
The terminal device according to claim 38, wherein the indication manner of the MAC CE is predefined or indicated by the first indication information.
The terminal device of claim 39, wherein the first indication information is a logical channel identification LCID or an extended logical channel identification eLCID sent by the first network device.
The terminal device of claim 40, wherein the LCID or eLCID corresponds to identify the MAC CE.
The terminal device of claim 40 or 41, wherein the LCID or eclpid value is a reserved value in a current LCID or a current eclpid value range.
The terminal device according to any of the claims 39-42, wherein the first indication information is further used for indicating whether RLC information of the at least one third network device is to be ignored.
The terminal device of claim 39, wherein the first indication information is carried in a radio resource control, RRC, message or a downlink control information, DCI, message.
The terminal device of claim 44, wherein the first indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The terminal device of any of claims 37-42, wherein,

the communication unit is further configured to receive second indication information, where the second indication information is used to indicate whether RLC information of the at least one third network device is ignored.
The terminal device of claim 46, wherein the second indication information is carried in an RRC message or a DCI message.
The terminal device of claim 47, wherein the second indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The terminal device of claim 36, wherein if the number of MAC CEs is plural and DRBs corresponding to the plural MAC CEs are the same, the processing unit is specifically configured to:

and determining whether the duplicate transmission is activated or not and/or RLC information in the duplicate transmission according to a first MAC CE of a plurality of MAC CEs and an indication mode of the first MAC CE.
The terminal device of claim 49, wherein the first MAC CE is a MAC CE selected from a plurality of the MAC CEs according to a preset rule.
The terminal device of claim 50, wherein the first MAC CE is a MAC CE from a master node or a MAC CE of a corresponding master cell group MCG;

or,

the first MAC CE is a MAC CE from a secondary node or a MAC CE of a corresponding secondary cell group SCG.
The terminal device of any one of claims 36, wherein if the number of MAC CEs is plural and DRBs corresponding to the plural MAC CEs are the same, the processing unit is specifically configured to:

and determining the RLC information corresponding to the second MAC CE in the duplicate transmission according to the second MAC CE and the indication mode corresponding to the second MAC CE.
The terminal device of claim 52, wherein the second MAC CE is a MAC CE from a node corresponding to the RLC entity or a MAC CE corresponding to a CG where the RLC entity is located.
The terminal device according to any of claims 36-53, wherein the MAC CE is a MAC CE in the duplicate transmission for indicating whether RLC is in an active state or an inactive state;

and/or the number of the groups of groups,

the MAC CE is a MAC CE for indicating whether the duplicate transmission is in an active state or an inactive state.
The terminal device according to any of the claims 36-54, wherein the RLC information in duplicate transmission comprises: an identification of at least one RLC entity in the duplicate transmission, and/or an identification for identifying whether the at least one RLC entity is in an active state.
A network device as a first network device, comprising:

a communication unit for transmitting a media access control-control element MAC CE in duplicate transmission;

the indication mode of the MAC CE and the MAC CE is used for determining whether the duplicate transmission is activated or not, and/or controlling RLC information by a wireless link in the duplicate transmission.
The network device of claim 56, wherein the MAC CE comprises: RLC information of the first network device;

or,

the MAC CE includes: RLC information of at least one second network device, where the second network device is a network device corresponding to a data radio bearer DRB corresponding to the MAC CE;

Or,

the MAC CE includes: RLC information of at least one third network device, the third network device being a network device of at least one second network device other than the first network device.
The network device of claim 57, wherein the indication of the MAC CE is used to indicate that the MAC CE includes RLC information of the first network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one second network device;

or,

the indication mode of the MAC CE is used for indicating that the MAC CE comprises the RLC information of the at least one third network device.
The network device of claim 58, wherein the indication of the MAC CE is predefined or indicated by a first indication message.
The network device of claim 59, wherein the first indication information is a logical channel identification LCID or an extended logical channel identification eLCID sent by the first network device.
The network device of claim 60, wherein the LCID or eclcid correspondence identifies the MAC CE.
The network device of claim 60 or 61, wherein the LCID or eclid value is a reserved value in a current LCID or current eclid range of values.
The network device of any of claims 59-62, wherein the first indication information is further configured to indicate whether RLC information of the at least one third network device is ignored.
The network device of claim 59, wherein the first indication information is carried in a radio resource control, RRC, message or a downlink control information, DCI, message.
The network device of claim 64, wherein the first indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The network device of any one of claims 57-62,

the communication unit is further configured to send second indication information, where the second indication information is used to indicate whether RLC information of the at least one third network device is ignored.
The network device of claim 66, wherein the second indication information is carried in an RRC message or a DCI message.
The network device of claim 67, wherein the second indication information is a new parameter or a new value of an existing parameter in the RRC message or DCI message.
The network device of any one of claims 56-68, wherein the MAC CE is a MAC CE in the duplicate transmission that indicates whether RLC is in an active or inactive state;

and/or the number of the groups of groups,

the MAC CE is a MAC CE for indicating whether the duplicate transmission is in an active state or an inactive state.
The network device of any of claims 56-69, wherein the replicating RLC information in transmission includes: an identification of at least one RLC entity in the duplicate transmission, and/or an identification for identifying whether the at least one RLC entity is in an active state.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 20.
A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 21 to 35.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 20.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 21 to 35.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 20.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 21 to 35.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 20.
A computer program product comprising computer program instructions which cause a computer to perform the method of any of claims 21 to 35.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 20.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 21 to 35.