WO2021097689A1 - 一种通信方法、装置及设备 - Google Patents

一种通信方法、装置及设备 Download PDF

Info

Publication number
WO2021097689A1
WO2021097689A1 PCT/CN2019/119543 CN2019119543W WO2021097689A1 WO 2021097689 A1 WO2021097689 A1 WO 2021097689A1 CN 2019119543 W CN2019119543 W CN 2019119543W WO 2021097689 A1 WO2021097689 A1 WO 2021097689A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission path
path
transmission
control information
carrier
Prior art date
Application number
PCT/CN2019/119543
Other languages
English (en)
French (fr)
Inventor
许斌
曹振臻
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/119543 priority Critical patent/WO2021097689A1/zh
Publication of WO2021097689A1 publication Critical patent/WO2021097689A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a communication method, device and equipment.
  • a packet data convergence protocol (packet data convergence protocol, PDCP) layer data repetitive transmission function is introduced.
  • the general idea is that if the repeated transmission function of the PDCP layer is configured and activated for a radio bearer, each data packet received by the PDCP entity needs to copy at least one identical data packet, and then multiple identical data packets are transferred to the PDCP layer.
  • RLC radio link control
  • MAC media access control
  • MAC media access control
  • the PDCP repeated transmission function is only for PDCP data packets, and PDCP control packets will not be repeated.
  • the problem of how to transmit the PDCP control packet needs to be solved urgently.
  • the embodiments of the present application provide a communication method, device, and equipment, which are used to provide a solution for transmitting control information.
  • a first communication method includes: receiving first signaling from a network device, where the first signaling is used to deactivate a primary path corresponding to a first radio bearer, wherein the first The radio bearer is configured with a PDCP repetition function; first control information is sent on the first carrier through the main path, and the first carrier is at least one of multiple carriers configured for the terminal device.
  • the method may be executed by a first communication device, and the first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the first communication device is a terminal device, or a chip set in the terminal device for realizing the function of the terminal device, or other component used for realizing the function of the terminal device.
  • the first communication device is a terminal device.
  • the first carrier can be determined so as to continue to send control information on the first carrier through the main path.
  • the control information can still continue to be transmitted on the main path, which provides a reasonable and effective way to transmit control information and reduces the probability of control information loss.
  • control information is generally more important, which enables the receiving end to obtain control information in time to make corresponding decisions.
  • the first carrier may include at least one carrier among the carriers configured for the terminal device, so that the selection range of the first carrier is wider, which helps to select a more suitable or better quality carrier as the first carrier, thereby improving The success rate of control information transmission.
  • the first carrier has an association relationship with the logical channels included in the main path; or,
  • the first carrier and the logical channels included in the transmission path corresponding to the first radio bearer have an association relationship; or,
  • the first carrier is any carrier configured for the terminal device.
  • the terminal device can select any at least one carrier having an association relationship with the logical channel included in the main path as the first carrier.
  • the first carrier can have an association relationship with the logical channels included in the main path.
  • the main path is only used to transmit control information. Continue to limit the carrier binding relationship so that the terminal device does not need to do extra to the main path.
  • the processing is the same as the transmission state before deactivation, which reduces the processing complexity of the terminal device.
  • the terminal device can select any at least one logical channel that has an association relationship with the logical channels included in the transmission path corresponding to the first radio bearer.
  • One carrier is used as the first carrier.
  • the first carrier may have an association relationship with a logical channel included in the transmission path corresponding to the first radio bearer.
  • the transmission path corresponding to the first radio bearer described herein may include all or part of the transmission path corresponding to the first radio bearer. If the transmission path corresponding to the first radio bearer includes a part of the transmission path corresponding to the first radio bearer, this part of the transmission path may or may not include the main path.
  • control information does not improve reliability through repeated transmission, it is not necessary to use carrier binding relationships to prevent multiple identical control information from being transmitted on the same carrier like data packets. After the main path is deactivated, the main path is only used to transmit control information. By no longer restricting the carrier binding relationship, the transmission of control information can be made more flexible, and the transmission capacity of the system can be increased when the load is high.
  • the first carrier is any carrier configured for the terminal device, it indicates that the terminal device can select any at least one carrier configured for the terminal device as the first carrier.
  • the first carrier may be any carrier configured for the terminal device.
  • the transmission of control information can be made more flexible, and at the same time, the transmission capacity of the system can be increased when the load is high.
  • the first carrier is any carrier configured for the terminal device, which can make the selection range of the first carrier wider, which is beneficial for the terminal device to select a more suitable carrier.
  • the terminal device selects the first carrier, it may be configured by the network device, or may be stipulated by a protocol, or determined by the terminal device. If it is determined by the terminal device, the terminal device can be used to select the range of the first carrier to notify the network device, so that the network device can allocate uplink resources for the terminal device.
  • the first signaling is also used to indicate that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is different from the first signal.
  • the transmission of control information is applicable or not applicable.
  • Which method the terminal device uses to select the first carrier can be determined by the terminal device itself, or configured by the network device, or it can be stipulated through an agreement. For example, if the network device indicates that after the main path is deactivated, the association relationship between the logical channel corresponding to the main path and the carrier is applicable to the control information, the terminal device may determine that the carrier path has an association relationship with the logical channel included in the main path.
  • any at least one carrier of the carrier is the first carrier; or, if the network device indicates that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is not applicable to the control information, the terminal device may determine Any at least one carrier of the associated logical channels included in the transmission path corresponding to the first radio bearer is the first carrier, or any at least one carrier of any carrier configured for the terminal device is determined to be the first carrier.
  • the main path is only used to transmit control information.
  • the network device can dynamically indicate, for example, the network device can be based on the transmission status Or link conditions or load status for more flexible control.
  • the first control information includes PDCP control PDU.
  • the first control information may include PDCP control PDU, or may also include other information, which is not specifically limited.
  • the method further includes:
  • the association relationship between the logical channel and the carrier corresponding to the main path is not applicable; and/or,
  • the association relationship between the logical channel and the carrier corresponding to the main path is applicable.
  • the association relationship between the logical channel and the carrier corresponding to the main path is not applicable; or, when the main path is in the active state, it is sent through the main path.
  • the relationship between the logical channel corresponding to the main path and the carrier is applicable; or, when the main path is active, when PDCP control PDUs are sent through the main path, the logical channel corresponding to the main path and the carrier.
  • the association relationship is not applicable, and when the main path is in the active state, when the PDCP data PDU is sent through the main path, the association relationship between the logical channel and the carrier corresponding to the main path is applicable.
  • the PDCP control PDU is transmitted on the primary path and the carrier binding relationship is not applicable.
  • the terminal device can determine any of the carriers that have an association relationship with the logical channels included in the transmission path corresponding to the first radio bearer. At least one carrier of is the first carrier, or any at least one of any carriers configured for the terminal device is determined to be the first carrier, and the PDCP data PDU transmission on the main path applies the carrier binding relationship. The reason for this is that the PDCP control PDU does not improve reliability through repeated transmission, and not limiting the transmission carrier will make the transmission more flexible and increase the transmission capacity of the system.
  • a second communication method includes: receiving first signaling from a network device, where the first signaling is used to indicate at least one transmission path of control information, and the at least one transmission path is the first transmission path.
  • a transmission path corresponding to a radio bearer sending the first control information through the main path corresponding to the first radio bearer or the at least one transmission path.
  • the method may be executed by a second communication device, and the second communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the second communication device is a terminal device, or a chip set in the terminal device for realizing the function of the terminal device, or other component used for realizing the function of the terminal device.
  • the second communication device is a terminal device.
  • the network device can dynamically indicate the transmission path.
  • the network device can perform more flexible control according to factors such as transmission status or link conditions or load status.
  • the terminal device can determine the transmission path on which the control information is to be transmitted after the main path is deactivated according to the instructions of the network device or through certain rules, which clarifies the transmission behavior of the terminal device for the control information.
  • the first signaling is also used to indicate the transmission priority of the at least one transmission path, and the first control information is sent through the at least one transmission path indicated by the first signaling ,include:
  • the first transmission path is selected as the transmission path of the first control information, or, when the main path is in the deactivated state, according to the transmission of the at least one transmission path Priority, selecting the first transmission path as the transmission path of the first control information;
  • the terminal device can send control information according to the network device's instruction, for example, the terminal device can be instructed by the first signaling
  • At least one transmission path transmits control information.
  • the transmission priority of the main path can be specified by the protocol.
  • the protocol can specify that the transmission priority of the main path is the highest, but the current main path is in the deactivated state, or the main path is deactivated, then the terminal device can also follow the network
  • the device is instructed to send control information, for example, the control information is sent through at least one transmission path indicated by the first signaling. If the terminal device sends control information according to the instructions of the network device, the network device can also clarify the transmission path used by the terminal device to send the control information, so that the network device can correctly receive the control information from the terminal device.
  • the first signaling indicates at least one transmission path of the control information, which may specifically mean that the first signaling indicates the transmission priority of the at least one transmission path.
  • the first signaling may indicate the transmission priority of the at least one transmission path.
  • the first signaling only indicates the priority of the transmission path, but may not indicate the specific transmission path.
  • the terminal device can select the transmission path in the active state to send the control information according to the order of the transmission priority of the transmission path from high to low. That is, after determining the priority of at least one transmission path according to the first signaling, the terminal device may determine the transmission path for sending control information according to the state of the transmission path.
  • the terminal device can also adjust the transmission path of the control information in time, so that it can choose the transmission path with higher transmission priority to send the control information as much as possible.
  • the transmission path can be replaced in time when the transmission path with higher transmission priority is deactivated, so as to improve the transmission success rate of control information.
  • the first transmission path is the transmission path with the highest transmission priority among the at least one transmission path.
  • the terminal device may send the first control information through the transmission path. Or, if the terminal device determines to send the first control information through the at least one transmission path, and the number of at least one transmission path is greater than 1, the terminal device may first select a transmission path from the at least one transmission path, and then pass the The transmission path sends the first control information. For example, the terminal device selects the first transmission path from at least one transmission path to send the first control information.
  • the first transmission path is, for example, the transmission path with the highest transmission priority among the at least one transmission path, that is, the terminal device selects the transmission path with the highest transmission priority from the at least one transmission path to send the first control information.
  • the transmission path with the highest transmission priority may be a transmission path with better channel quality, or a transmission path with less load, etc.
  • the transmission path with the highest transmission priority is selected to send the first control information, which can improve the transmission of the first control information. Success rate.
  • sending the first control information through the main path includes:
  • the first control information is sent through the main path.
  • the transmission priority of the main path can be specified by the protocol, for example, the protocol can specify, the transmission priority of the main path is the highest. Then, when the main path is in the active state, the terminal device may not send the first control information according to at least one transmission path indicated by the first signaling, but send the first control information through the main path. In this way, the main path can be selected as far as possible to send control information. Generally, the main path has better channel quality, which can improve the success rate of control information transmission.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • the first signaling may be signaling used to configure the repetitive function of PDCP for the first radio bearer, or may be signaling used to activate the main path corresponding to the first radio bearer, or may also be used to Deactivate the signaling of the primary path corresponding to the first radio bearer, etc.
  • the first signaling can reuse existing signaling, thereby improving signaling utilization and saving signaling overhead.
  • the first signaling may also be a newly added signaling dedicated to indicating at least one transmission path of control information, etc., and the dedicated signaling may be used as the first signaling to make the indication of the first signaling change. For clarity.
  • a third communication method comprising: determining at least one transmission path, the at least one transmission path is a transmission path corresponding to a first radio bearer, and the at least one transmission path is used for a terminal device to send control information ; Send first signaling to the terminal device, where the first signaling is used to indicate the at least one transmission path.
  • the method may be executed by a third communication device, and the third communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the third communication device is a network device, or a chip set in the network device for realizing the function of the network device, or other component used for realizing the function of the network device.
  • the third communication device is a network device.
  • the first signaling is also used to indicate the transmission priority of the at least one transmission path.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • a fourth communication method includes: sending first control information through a first transmission path, where the first transmission path is a transmission path corresponding to a first radio bearer; and receiving a first message from a network device. Command that the first signaling is used to deactivate the first transmission path; and send second control information through a second transmission path corresponding to the first radio bearer.
  • the method may be executed by a fourth communication device, and the fourth communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the fourth communication device is a terminal device, or a chip set in the terminal device for realizing the function of the terminal device, or other component used for realizing the function of the terminal device.
  • the fourth communication device is a terminal device.
  • the terminal device can try to select a transmission path with better channel quality to send control information, so as to ensure the reliability of control information transmission.
  • the terminal device can determine through certain rules, after the first transmission path is deactivated, on which transmission path the control information is transmitted, which clarifies the transmission behavior of the terminal device for the control information.
  • At least one carrier associated with the logical channel corresponding to the second transmission path includes a primary carrier; or,
  • the at least one carrier associated with the logical channel corresponding to the second transmission path includes the carrier with the best channel quality.
  • the terminal device can Determine the primary carrier of the first transmission path (that is, the primary carrier of the carriers associated with the logical channels included in the first transmission path) and which transmission path logical channel establishes an association relationship, for example, the terminal device determines the first transmission path If the primary carrier of, and the logical channel of the second transmission path are associated, the terminal device can continue to send control information through the second transmission path.
  • the terminal device only needs to determine the transmission path corresponding to the logical channel newly associated with the main carrier corresponding to the first transmission path, and can select a transmission path with better channel quality, which can improve the transmission quality of control information.
  • the method is relatively simple.
  • the terminal device may measure all or part of the carrier associated with the logical channels included in the transmission path corresponding to the first radio bearer to determine the channel quality of each carrier, so that the terminal device may determine the carrier with the best channel quality from it. .
  • the terminal device may determine that the transmission path corresponding to the logical channel associated with the carrier with the best channel quality is the second transmission path, and the terminal device may send the control information through the second transmission path.
  • the terminal device can determine the carrier with the best channel quality, and transmit the control information through the transmission path corresponding to the logical channel associated with the carrier, which can improve the transmission reliability of the control information.
  • the terminal device can determine the channel quality of the carrier through measurement, which can make the determined channel quality more accurate.
  • a communication device is provided, for example, the communication device is the first communication device as described above.
  • the first communication device is used to execute the method in the foregoing first aspect or any possible implementation manner.
  • the first communication device may include a module for executing the method in the first aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may also be the same functional module, but can implement different functions.
  • the first communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the first communication device is a terminal device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the first communication device is a terminal device, and the processing module, the sending module, and the receiving module are used as examples for the introduction. among them,
  • the receiving module is configured to receive first signaling from a network device, where the first signaling is used to deactivate a main path corresponding to a first radio bearer, wherein the first radio bearer is configured with a PDCP repeat function ;
  • the sending module is configured to send first control information on a first carrier through the main path, where the first carrier is at least one of a plurality of carriers configured for a terminal device.
  • the processing module is configured to determine the first carrier.
  • the first carrier has an association relationship with the logical channels included in the main path; or,
  • the first carrier and the logical channels included in the transmission path corresponding to the first radio bearer have an association relationship; or,
  • the first carrier is any carrier configured for the terminal device.
  • the first signaling is also used to indicate that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is different from the first signal.
  • the transmission of control information is applicable or not applicable.
  • the first control information includes PDCP control PDU.
  • the association relationship between the logical channel and the carrier corresponding to the main path is not applicable; and/or,
  • the association relationship between the logical channel and the carrier corresponding to the main path is applicable.
  • a communication device is provided, for example, the communication device is the second communication device as described above.
  • the second communication device is used to execute the method in the foregoing second aspect or any possible implementation manner.
  • the second communication device may include a module for executing the method in the second aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may also be the same functional module, but can implement different functions.
  • the second communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the second communication device is a terminal device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or, transmitter and receiver) is, for example, a communication interface in the chip, and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the second communication device is continued to be a terminal device, and the processing module, the sending module, and the receiving module are used as examples for the introduction. among them,
  • the receiving module is configured to receive first signaling from a network device, where the first signaling is used to indicate at least one transmission path of control information, and the at least one transmission path is a transmission path corresponding to a first radio bearer;
  • the sending module is configured to send the first control information through the main path corresponding to the first radio bearer or the at least one transmission path.
  • the receiving module is configured to receive first signaling from a network device, where the first signaling is used to indicate at least one transmission path of control information, and the at least one transmission path is a transmission path corresponding to a first radio bearer;
  • the processing module is configured to send the first control information through the sending module through the main path corresponding to the first radio bearer or the at least one transmission path.
  • the first signaling is further used to indicate the transmission priority of the at least one transmission path
  • the sending module is used to indicate the transmission priority of the at least one transmission path in the following manner.
  • At least one transmission path sends the first control information:
  • the processing module is configured to select the first transmission path as the transmission path of the first control information according to the transmission priority of the at least one transmission path, or, when the main path is in a deactivated state, according to the The transmission priority of the at least one transmission path, selecting the first transmission path as the transmission path of the first control information;
  • the first signaling is further used to indicate the transmission priority of the at least one transmission path
  • the processing module is used to pass the transmission module through the transmission module in the following manner. Sending first control information on the at least one transmission path indicated by the first signaling:
  • the first transmission path is selected as the transmission path of the first control information, or, when the main path is in the deactivated state, according to the transmission of the at least one transmission path Priority, selecting the first transmission path as the transmission path of the first control information;
  • the first control information is sent through the sending module through the first transmission path.
  • the first transmission path is the transmission path with the highest transmission priority among the at least one transmission path.
  • the sending module is configured to send the first control information through the main path in the following manner:
  • the first control information is sent through the main path.
  • the processing module is configured to send the first control information through the main path through the sending module in the following manner:
  • the first control information is sent through the main path through the sending module.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • a communication device is provided, for example, the communication device is the aforementioned third communication device.
  • the third communication device is used to execute the method in the foregoing third aspect or any possible implementation manner.
  • the third communication device may include a module for executing the method in the third aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may also be the same functional module, but can implement different functions.
  • the third communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the third communication device is a network device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the third communication device is a chip set in the communication device
  • the transceiver (or, the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the third communication device is continued to be a network device, and the processing module, the sending module, and the receiving module are used as examples for the introduction. among them,
  • the processing module is configured to determine at least one transmission path, the at least one transmission path is a transmission path corresponding to the first radio bearer, and the at least one transmission path is used for the terminal device to send control information;
  • the sending module is configured to send first signaling to the terminal device, where the first signaling is used to indicate the at least one transmission path.
  • the first signaling is also used to indicate the transmission priority of the at least one transmission path.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • a communication device is provided, for example, the communication device is the fourth communication device as described above.
  • the fourth communication device is configured to execute the method in the foregoing fourth aspect or any possible implementation manner.
  • the fourth communication device may include a module for executing the method in the fourth aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may also be the same functional module, but can implement different functions.
  • the fourth communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the fourth communication device is a terminal device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the fourth communication device is a chip set in the communication device
  • the transceiver (or, the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the fourth communication device is continued to be a terminal device, and the processing module, the sending module, and the receiving module are used as examples for the introduction. among them,
  • the sending module is configured to send first control information through a first transmission path, where the first transmission path is a transmission path corresponding to a first radio bearer;
  • the receiving module is configured to receive first signaling from a network device, where the first signaling is used to deactivate the first transmission path;
  • the sending module is further configured to send second control information through a second transmission path corresponding to the first radio bearer.
  • At least one carrier associated with the logical channel corresponding to the second transmission path includes a primary carrier; or,
  • the at least one carrier associated with the logical channel corresponding to the second transmission path includes the carrier with the best channel quality.
  • a communication device is provided.
  • the communication device is, for example, the first communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled with each other, and are used to implement the methods described in the first aspect or various possible implementation manners.
  • the first communication device may not include a memory, and the memory may be located outside the first communication device.
  • the first communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the first aspect or various possible implementation manners.
  • the first communication device when the processor executes the computer instructions stored in the memory, the first communication device is caused to execute the method in the foregoing first aspect or any one of the possible implementation manners.
  • the first communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codec and other implementations.
  • the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication device is provided.
  • the communication device is, for example, the second communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled with each other, and are used to implement the methods described in the second aspect or various possible implementation manners.
  • the second communication device may not include a memory, and the memory may be located outside the second communication device.
  • the second communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the second aspect or various possible implementation manners.
  • the second communication device when the processor executes the computer instructions stored in the memory, the second communication device is caused to execute the method in the second aspect or any one of the possible implementation manners.
  • the second communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by, for example, a transceiver (or transmitter and receiver) in the communication device.
  • the transceiver is realized by an antenna, a feeder, and a receiver in the communication device. Codec and other implementations.
  • the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication device is provided.
  • the communication device is, for example, the third communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled with each other, and are used to implement the methods described in the third aspect or various possible implementation manners.
  • the third communication device may not include a memory, and the memory may be located outside the third communication device.
  • the third communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the third aspect or various possible implementation manners.
  • the third communication device when the processor executes the computer instructions stored in the memory, the third communication device is caused to execute the method in the third aspect or any one of the possible implementation manners.
  • the third communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the communication interface is realized by a transceiver (or a transmitter and a receiver) in the communication device, for example, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codec and other implementations.
  • the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication device is provided.
  • the communication device is, for example, the fourth communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled with each other, and are used to implement the methods described in the fourth aspect or various possible implementation manners.
  • the fourth communication device may not include a memory, and the memory may be located outside the fourth communication device.
  • the fourth communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the fourth aspect or various possible implementation manners.
  • the second communication device when the processor executes the computer instructions stored in the memory, the second communication device is caused to execute the method in the fourth aspect or any one of the possible implementation manners.
  • the fourth communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by, for example, a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codec and other implementations.
  • the fourth communication device is a chip set in a communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication system which includes the communication device according to the fifth aspect or the communication device according to the ninth aspect.
  • a communication system which includes the communication device described in the sixth aspect or the communication device described in the tenth aspect, and the communication device described in the seventh aspect or the communication device described in the eleventh aspect ⁇ Communication device.
  • a communication system which includes the communication device according to the eighth aspect or the communication device according to the twelfth aspect.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions are executed on a computer, the computer can execute the first aspect or any one of the above. The method described in one possible implementation.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions run on a computer, the computer executes the second aspect or any one of the above. The method described in one possible implementation.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions are executed on a computer, the computer executes the third aspect or any one of the foregoing The methods described in the possible implementations.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions are executed on a computer, the computer executes the fourth aspect or any one of the foregoing. The method described in one possible implementation.
  • a computer program product containing instructions is provided.
  • the computer program product is used to store computer instructions.
  • the computer instructions run on a computer, the computer executes the first aspect or any one of the above. The method described in one possible implementation.
  • a computer program product containing instructions is provided, the computer program product is used to store computer instructions, and when the computer instructions run on a computer, the computer executes the second aspect or any of the above The method described in one possible implementation.
  • a computer program product containing instructions is provided.
  • the computer program product is used to store computer instructions.
  • the computer instructions executes the third aspect or any of the foregoing. The method described in one possible implementation.
  • a computer program product containing instructions is provided, the computer program product is used to store computer instructions, and when the computer instructions run on a computer, the computer executes the fourth aspect or any of the foregoing The method described in one possible implementation.
  • control information can still continue to be transmitted on the main path, which provides a reasonable and effective way to transmit control information and reduces the probability of control information loss.
  • Figure 1 shows the network architecture involved in implementing the repetitive function of PDCP in a DC scenario
  • Figure 2 shows the network architecture involved in implementing the repeated functions of PDCP in the CA scenario
  • Figure 3 is a schematic diagram showing that in a CA scenario, when two logical channels are configured for a radio bearer, after one logical channel of the radio bearer is deactivated, the association relationship between the other logical channel and the carrier will not be applicable;
  • FIG. 4 is a schematic diagram of an application scenario of an embodiment of the application.
  • FIG. 5 is a schematic diagram of another application scenario of an embodiment of the application.
  • FIG. 6 is a flowchart of the first communication method provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of a transmission path corresponding to a radio bearer in an embodiment of the application.
  • FIG. 8 is a flowchart of a second communication method provided by an embodiment of this application.
  • FIG. 9 is a flowchart of a third communication method provided by an embodiment of this application.
  • FIG. 10 is a schematic block diagram of a first terminal device provided by an embodiment of this application.
  • FIG. 11 is a schematic block diagram of a second type of terminal device provided by an embodiment of this application.
  • FIG. 12 is a schematic block diagram of a network device provided by an embodiment of this application.
  • FIG. 13 is a schematic block diagram of a third terminal device provided by an embodiment of this application.
  • FIG. 14 is a schematic block diagram of a communication device provided by an embodiment of the application.
  • 15 is another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 16 is still another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 17 is another schematic block diagram of a communication device provided by an embodiment of this application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, specifically, include devices that provide users with voice, or include devices that provide users with data connectivity, or include devices that provide users with voice and data connectivity Sexual equipment.
  • it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , Machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit, subscriber station (subscriber) station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user Agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • M2M/MTC Machine-to-machine/machine-type communications
  • IoT Internet of things
  • subscriber unit subscriber station (subscriber) station)
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • access terminal access terminal
  • user terminal user terminal
  • user Agent
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).
  • OBU on-board unit
  • the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.
  • the device for realizing the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device for realizing the functions of the terminal is a terminal device as an example to describe the technical solutions provided by the embodiments of the present application.
  • Network equipment including, for example, access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network
  • AN access network
  • a base station e.g., access point
  • V2X vehicle-to-everything
  • the base station can be used to convert the received air frame and IP packet to each other, as a router between the terminal device and the rest of the access network, where the rest of the access network can include the IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system, Or it can also include the next generation node B (gNB) in the new radio (NR) system (also referred to as the NR system) in the 5th generation (5G) mobile communication technology (the 5th generation, 5G), or it can also Including a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (cloud radio access network, Cloud RAN) system, which is not limited in the embodiment of the present application.
  • LTE long term evolution
  • NodeB or eNB or e-NodeB, evolutional NodeB evolutional NodeB
  • LTE-A long term evolution-advanced
  • gNB next generation node B
  • NR new radio
  • 5G 5th generation
  • 5G 5th generation
  • CU centralized
  • the network equipment may also include core network equipment.
  • the core network equipment includes, for example, access and mobility management functions (AMF). Since the embodiments of this application do not involve the core network, unless otherwise specified in the following text, the network devices mentioned all refer to the access network devices.
  • AMF access and mobility management functions
  • the device used to implement the function of the network device may be a network device, or a device capable of supporting the network device to implement the function, such as a chip system, and the device may be installed in the network device.
  • the device used to implement the functions of the network equipment is a network device as an example to describe the technical solutions provided in the embodiments of the present application.
  • Dual connectivity that is, the terminal device is connected to two base stations at the same time.
  • the two base stations connected by the terminal equipment can be base stations under the same wireless access technology, for example, both base stations in the LTE system or both base stations in the NR system, or the two base stations connected by the terminal equipment can also be different wireless access.
  • the base stations under the advanced technology for example, one is the base station in the LTE system, and the other is the base station in the NR system.
  • CA Carrier aggregation
  • CC component carriers
  • the logical channel is associated with the carrier, or the logical channel has an association relationship with the carrier, or it can also be called the logical channel and the carrier have a binding relationship or a binding transmission relationship, etc., including but not limited to, if the configuration of the logical channel If some carriers are allowed to be used in indicated in the logical channel, it means that the data transmitted in the logical channel can be transmitted on these carriers, or the resources on these carriers can be allocated to the logical channel. In this case, the logical channel can be referred to as being associated with these carriers. Further, the data transmitted in the logical channel is not transmitted on a carrier other than the carrier associated with the logical channel.
  • the logical channel corresponding to the data packet copied at the PDCP layer may have an association relationship with the carrier. In some scenarios, if the carrier association relationship is not configured, it means that the data transmitted in the logical channel can be transmitted on any carrier.
  • a parameter can be configured for the logical channel, such as parameter A, and the value of parameter A is used to indicate different carriers, which means that the data transmitted in the logical channel can only be transmitted on the carrier specified by parameter A.
  • parameter A is configured for logical channel 1
  • parameter A indicates carriers 1 and 2
  • logical channel 1 and carrier 1 and carrier 2 can be said to have an associated relationship, or a binding relationship or a mapping relationship.
  • PDCP duplication or PDCP repeated transmission, or PDCP repeated transmission function, or PDCP repeated function, etc., refers to the PDCP entity duplicating data packets Multiple copies are delivered to different RLC entities, and then transmitted from the RLC layer to the MAC layer through a logical channel.
  • system and “network” in the embodiments of this application can be used interchangeably.
  • Carrier and “cell” can be regarded as the same concept and can be used interchangeably.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.
  • At least one item (a) refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • the ordinal numbers such as "first" and "second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the content, order, timing, and priority of multiple objects. Level or importance.
  • the first control information and the second control information are only used to distinguish different control information, and do not indicate the difference in content, transmission order, priority, or importance of the two types of control information.
  • the repetition function of PDCP usually refers to copying the data packets carried by the radio into multiple identical packets (that is, repeated packets) at the PDCP layer, and then multiple data packets are submitted to multiple different RLC entities for transmission, and then through different RLC entities.
  • the logical channel is transmitted to the MAC layer.
  • the logical channel is the channel from the RLC layer to the MAC layer. It should be noted that, generally speaking, retransmission refers to retransmission, and the repeated transmission in the embodiment of the present application is not retransmission.
  • Retransmission refers to the retransmission of the same data packet after failure, or the continuous multiple transmission of the same data packet, and the repeated transmission is to copy a data packet to multiple data packets and put them on multiple logical channels for transmission.
  • "Repetition” here can also be understood as "copy”.
  • Fig. 1 exemplarily shows the network architecture involved in implementing the repetitive function of PDCP in a DC scenario.
  • the DC scenario involves the primary base station and the secondary base station.
  • the network architecture of the primary base station and the secondary base station for a radio bearer is shown in Figure 1
  • the network architecture of the terminal equipment for the radio bearer includes the network architecture shown in Figure 1.
  • the network architecture of the primary base station and the network architecture of the secondary base station, that is, the terminal device includes one PDCP entity, two RLC entities, and two MAC entities for the radio bearer.
  • Security (security), duplication (duplication), slicing (segment), automatic repeat-request (ARQ), mutiplexing, hybrid automatic repeat request (HARQ) in Figure 1 ), and robust header compression (ROHC), etc.
  • PDCP entity an RLC entity
  • RLC entity an RLC entity
  • MAC entity a MAC entity
  • FIG. 1 The circles in Figure 1 represent interfaces and/or channels between different layers.
  • the interface is called an inter-layer interface, such as a service access point (SAP), and the channel may be a logical channel, for example, which is similar in the following, and will not be described again.
  • SAP service access point
  • FIG. 1 is only an exemplary structure, and each component in the figure is not an indispensable component in this embodiment.
  • the security module can be omitted as appropriate.
  • a terminal device is connected to two base stations at the same time, that is, the primary base station and the secondary base station.
  • the PDCP repeat function is configured for a radio bearer
  • the two data packets copied at the PDCP layer will be transmitted to Two different RLC entities are transmitted to different MAC entities through different logical channels, and finally two MAC PDUs are formed for transmission on different carriers.
  • This process is the same for both the base station and the terminal equipment.
  • the difference is that for the base station, the PDCP layer in the primary base station will transmit the two replicated data packets to two different RLC entities.
  • the RLC entities are located in the primary base station and the secondary base station respectively.
  • the RCL entity in the primary base station transmits the received data packet to the MAC entity in the primary base station, and the RCL entity in the secondary base station transmits the received data packet to the secondary base station.
  • MAC entities these two MAC entities will transmit data packets through their respective carriers.
  • the two RCL entities and the two MAC entities are all located in the terminal device, and the other processes are the same.
  • FIG 2 is the network architecture involved in implementing the repetitive function of PDCP in the CA scenario.
  • the terminal device is connected to a base station, and the network architecture of the base station and the terminal device for a radio bearer is shown in Figure 2. That is, the base station and the terminal device for the radio bearer include a PDCP entity and two RLC entity and two MAC entities.
  • Security, replication, slicing, ARQ, multipath, HARQ, and ROHC in Figure 2 all represent the functions of a PDCP entity, an RLC entity, or a MAC entity.
  • a terminal device is connected to a base station, and the same base station has more than one carrier to serve the terminal device.
  • the two data packets copied at the PDCP layer will be transmitted to two different RLC entities, and these two RLC entities will be transmitted to the same one through different logical channels.
  • MAC entity At this time, since the two data packets are transmitted to the same MAC entity, the MAC entity will put the two data packets into one MAC PDU for transmission. Therefore, in order to make the two data packets be transmitted separately through two MAC PDUs, A parameter can be configured for the logical channel, for example, called parameter A. The value of parameter A is used to indicate different carriers, so as to ensure that the two data packets can finally form two MAC PDUs for transmission on different carriers.
  • the parameter A is configured for a certain logical channel, it indicates that the data in the RLC entity corresponding to the logical channel can only be transmitted on the carrier indicated by the parameter A. In this way, if the parameter A configured for the two logical channels that are mutually repeated indicates different carriers, then the two data packets that are mutually repeated will eventually be transmitted on different carriers, which can ensure reliability.
  • the repeat function of PDCP can be configured for the radio bearer, and the repeat function of PDCP configured for the radio bearer can also be deactivated.
  • the repetition function of PDCP configured for a radio bearer is deactivated (or called, the repetition of PDCP is deactivated)
  • the association relationship between the logical channel and the carrier in the radio bearer will also be different. Apply again.
  • the repetition of PDCP is limited to the transmission of data packets copied at the PDCP layer through two logical channels by one radio bearer (also commonly known as repeated transmission of two legs). Refer to FIG. 3.
  • logical channel 1 is allowed to use all active carriers of the terminal equipment, then, if carrier 4 is in active state, Then logical channel 1 can use carrier 4.
  • carrier 4 is in active state, Then logical channel 1 can use carrier 4.
  • the use of a certain carrier for the logical channel mentioned here means that the data transmitted in the logical channel can be transmitted on this carrier or can use the resources on this carrier for transmission.
  • PDCP PDUs are divided into PDCP data (data) PDU and PDCP control (control) PDU.
  • PDCP data PDU is used to carry data
  • PDCP control PDU is used to carry some control information, such as PDCP status report or robust header compression (RObust header compression, ROHC) feedback, etc.
  • the PDCP repeated transmission mechanism is mainly for PDCP data PDU.
  • PDCP control PDU it will not be copied, that is, it will only be transmitted on one transmission path.
  • the path between the PDCP entity, the RLC entity, and the MAC entity is a transmission path. It can be seen that at present, it is possible to transmit duplicate data packets through two or more transmission paths.
  • the multiple transmission paths corresponding to a radio bearer one is configured as the first path, and the others are configured as the second path.
  • the first path can also be referred to as the main path
  • the second path can also be referred to as the secondary path, but the name itself does not constitute a limitation on the characteristics.
  • the identifiers corresponding to the main path and the auxiliary path are different.
  • the main path will not be deactivated, while the auxiliary path can be deactivated.
  • the deactivation of a transmission path mainly refers to the deactivation of the PDCP repetition function of the transmission path.
  • the PDCP control PDU will only be transmitted on the primary path corresponding to the radio bearer, and will not be transmitted on the secondary path corresponding to the radio bearer. After the secondary path is deactivated, the repeated PDCP data PDUs transmitted in the secondary path will be discarded. Since the current main path will not be deactivated, the PDCP data PDU and PDCP control PDU transmitted on the main path are less affected by deactivation.
  • the solution of the embodiment of the present application is provided.
  • the first carrier if the main path is deactivated, the first carrier can be determined so as to continue to send control information on the first carrier through the main path. In other words, even if the main path is deactivated, the control information can still continue to be transmitted on the main path, which provides a reasonable and effective way to transmit control information and reduces the probability of control information loss. And control information is generally more important, which also enables the receiving end to obtain the control information in time to make corresponding decisions.
  • the first carrier may include at least one carrier among the carriers configured for the terminal device, so that the selection range of the first carrier is wider, which helps to select a more suitable or better quality carrier as the first carrier, thereby improving The success rate of control information transmission.
  • FIG. 4 is an application scenario of an embodiment of this application.
  • Figure 4 includes network equipment and terminal equipment, and the terminal equipment can communicate with the network equipment.
  • the number of terminal devices in Figure 4 is just an example.
  • network devices can provide services for multiple terminal devices. All or some of the multiple terminal devices can be provided by the embodiments of this application.
  • the method adjusts the association relationship between the logical channel and the carrier.
  • FIG. 5 is another application scenario of this embodiment of the present application.
  • the scenario shown in FIG. 5 can be understood as a DC scenario.
  • Figure 5 includes two network devices and a terminal device.
  • the two network devices are a first network device and a second network device.
  • the first network device is, for example, the main network device of the terminal device, and the second network device is the terminal.
  • the auxiliary network device of the device, or the first network device is the auxiliary network device of the terminal device, and the second network device is the main network device of the terminal device.
  • the two network devices are both base stations, then the main network device is the main base station, and the auxiliary network device is the auxiliary base station.
  • the first network device for example, works in an evolved UMTS terrestrial radio access (E-UTRA) system
  • the second network device for example, works in an NR system, or the first network device
  • the second network device works in an E-UTRA system
  • both the first network device and the second network device work in an NR system or an E-UTRA system, for example.
  • the terminal device is connected to the two network devices at the same time, and the terminal device can communicate with the two network devices.
  • the network device in FIG. 4 or FIG. 5 is, for example, a base station.
  • network devices correspond to different devices in different systems.
  • they can correspond to an eNB
  • 5G system they correspond to an access network device in 5G, such as gNB.
  • the technical solutions provided by the embodiments of the present application can also be applied to future mobile communication systems.
  • the network equipment in FIG. 4 or FIG. 5 may also correspond to the network equipment in the future mobile communication system.
  • Figure 4 or Figure 5 takes the network device as a base station as an example.
  • the network device may also be a device such as an RSU.
  • the terminal device in FIG. 4 or FIG. 5 uses a mobile phone as an example.
  • the terminal device in the embodiment of the present application is not limited to the mobile phone.
  • activation of a transmission path may refer to activating the repetitive function of PDCP of the transmission path. It can be understood that the transmission path in the active state can transmit the copied data packet.
  • the deactivation of a transmission path may refer to the deactivation of the PDCP repetitive function of the transmission path. It can be understood that the transmission path in the deactivated state cannot transmit the copied data packet.
  • the repeat function of PDCP can also be deactivated. After deactivation, multiple transmission paths may be deactivated at the same time.
  • FIG. 6 is a flowchart of this method.
  • the application of this method to the network architecture shown in FIG. 4 or FIG. 5 is taken as an example.
  • the method executed by the network device and the terminal device is taken as an example.
  • the network device described below may be the network device in the network architecture shown in FIG. 4
  • the terminal device described below may be the network device shown in FIG. 4.
  • the terminal equipment in the network architecture shown or, if this embodiment is applied to the network architecture shown in FIG. 5, therefore, the network device described below may be the first network device or the second network device in the network architecture shown in FIG.
  • the terminal device described may be a terminal device in the network architecture shown in FIG. 5.
  • the network device sends the first signaling to the terminal device, and the terminal device receives the first signaling from the network device.
  • the first signaling may be used to deactivate the main path corresponding to the first radio bearer.
  • the first radio bearer is configured with the repeat function of PDCP.
  • the first radio bearer may correspond to a PDCP entity, and the PDCP entity may be associated with one or more RLC entities (and/or logical channels), and each RLC entity (and/or logical channel) may be It is called a transmission path, or a leg, which is used to transmit one of the multiple copies of the same data to the MAC entity, and the transmission path is also the transmission path corresponding to the first radio bearer.
  • the first radio bearer may correspond to one or more transmission paths. Generally, the radio bearer corresponds to one transmission path.
  • the radio bearer may correspond to multiple transmission paths, that is, the data in PDCP can be transmitted to the MAC layer through one of multiple RLC or logical channels. .
  • the transmission path corresponding to the first radio bearer may include a primary path and an auxiliary path.
  • one of the transmission paths corresponding to the first radio bearer is configured as the primary path
  • the rest are configured as auxiliary paths.
  • the first radio bearer corresponds to three transmission paths, one of the three transmission paths is configured as the main path, and the other two transmission paths are configured as the auxiliary path.
  • control information is transmitted through the main path, and the auxiliary path does not transmit control information.
  • the control information may be, for example, PDCP control PDU, or the control information may include PDCP control PDU.
  • the PDCP control PDU is delivered by the PDCP entity to the RLC entity or logical channel corresponding to the main path, and will be processed by the RLC entity into an RLC PDU.
  • the payload in the RLC PDU includes the PDCP control PDU. Therefore, the transmission of the control information in the embodiment of the present application after passing through the RLC entity can be regarded as the transmission of the RLC PDU where the control information is located.
  • Both the primary path and the secondary path can transmit replicated data packets, and the data packets are, for example, PDCP data PDU.
  • the main path can transmit PDCP control PDU and PDCP data PDU.
  • the terminal device can determine that the main path is deactivated.
  • the terminal device may perform corresponding operations to deactivate the main path, so that the main path is deactivated.
  • the terminal device can discard the copied data packet transmitted on the main path (for example, the copy in the RLC entity)
  • the data packet that is, the PDCP data PDU transmitted by the main path is discarded.
  • the terminal device does not need to discard it, but continues to transmit through the main path.
  • This provides a reasonable and effective way to transmit control information, which reduces the complexity of UE processing and at the same time reduces the probability of control information loss.
  • control information is generally more important, which enables the receiving end to obtain the control information in time to make corresponding decisions.
  • the terminal device determines the first carrier.
  • the first carrier includes at least one of a plurality of carriers configured for the terminal device.
  • the logical channel and the carrier corresponding to the radio bearer may have an association relationship, or a binding relationship.
  • CA CA
  • the association relationship between the logical channel and the carrier corresponding to the radio bearer may no longer be applicable.
  • the DC scenario two transmission paths of repeated PDCP transmission are connected to different network devices, and one of the transmission paths is deactivated, which may not affect the association relationship between the logical channel and the carrier of the other transmission path. As for the deactivated transmission path, the association relationship between the logical channel and the carrier of the transmission path may no longer be applicable. If the main path is deactivated and continue to transmit control information through the main path, it is necessary to decide on which carriers the control information can be transmitted, so that when selecting uplink transmission resources, you can know which carriers the control information can be transmitted on the uplink resources .
  • the terminal device selects the first carrier as the carrier that continues to transmit the control information after the main path is deactivated.
  • the first carrier includes, for example, at least one carrier among multiple carriers configured for the terminal device, that is, the terminal device may select at least one carrier from the multiple carriers configured for the terminal device as the first carrier.
  • the terminal equipment needs to select the first carrier from the carriers configured for the terminal equipment, and there may also be different selection methods, which are described below with examples.
  • the terminal device may determine at least one of the carriers configured for the terminal device as the first carrier, and the first carrier may include any carrier among the multiple carriers configured for the terminal device.
  • the carrier configured for the terminal device includes the carrier that receives the first signaling (or, referred to as the cell), and also includes other carriers; in other words, it may include the logical channel of the transmission path corresponding to the first radio bearer having an association relationship And a carrier that does not have an association relationship with the logical channel of the transmission path corresponding to the first radio bearer.
  • the terminal device selects the first carrier in a wider range.
  • the terminal device can arbitrarily select at least one of the carriers configured for the terminal device as the first carrier.
  • the control information can be transmitted on the uplink resource.
  • the first radio bearer corresponds to three transmission paths: the main path, the auxiliary path one, and the auxiliary path two.
  • the logical channel corresponding to the main path has an association relationship with carrier one
  • the logical channel corresponding to auxiliary path one has an association relationship with carrier two
  • the logical channel corresponding to auxiliary path two has an association relationship with carrier three.
  • the terminal equipment is also configured with carrier four. Then, after the main path is deactivated, the control information on the main path can be transmitted using resources on any one of the four carriers.
  • the association relationship between the logical channel of the main path and the carrier is no longer applicable.
  • the carrier binding relationship can be expressed by the allowedServingCells parameter, and the configuration of each logical channel can include this parameter, and the carrier or cell corresponding to the parameter is the carrier on which the data packet in the logical channel can be transmitted. Or cell.
  • the data in the logical channel can no longer be restricted by the allowedServingCells parameter.
  • the PDCP control PDU does not improve reliability through repeated transmission, it is not necessary to use the carrier binding relationship to prevent multiple identical PDCP control PDUs from being transmitted on the same carrier like the PDCP data PDU. After the main path is deactivated, the main path is only used to transmit PDCP control PDUs. By no longer restricting the carrier binding relationship, PDCP control PDUs can be transmitted on any carrier configured for the terminal device, making the transmission more flexible At the same time, the transmission capacity of the system can be increased when the load is high.
  • the terminal device may determine any at least one of the carriers that have an association relationship with the logical channels included in the transmission path corresponding to the first radio bearer as the first carrier, and the first carrier may include the transmission corresponding to the first radio bearer.
  • the logical channels included in the path are any of the carriers in which the logical channel has an association relationship, in other words, the first carrier has an association relationship with the logical channel included in the transmission path corresponding to the first radio bearer.
  • the transmission path corresponding to the first radio bearer described here may include all transmission paths or part of the transmission path corresponding to the first radio bearer. If the transmission path corresponding to the first radio bearer includes a part of the transmission path corresponding to the first radio bearer, this part of the transmission path may or may not include the main path.
  • the terminal device when transmitting control information, can arbitrarily select the logical channel corresponding to the transmission path corresponding to the first radio bearer that has an association relationship with at least one carrier as the first carrier. Specifically, when the control information is transmitted, when the uplink resource belongs to a carrier having an association relationship with the logical channel corresponding to the transmission path corresponding to the first radio bearer, the control information may be transmitted on the uplink resource. Otherwise, the control information cannot be transmitted on uplink resources other than the first carrier.
  • the first radio bearer corresponds to three transmission paths: the main path, the auxiliary path one, and the auxiliary path two.
  • the logical channel corresponding to the main path has an association relationship with carrier one
  • the logical channel corresponding to auxiliary path one has an association relationship with carrier two
  • the logical channel corresponding to auxiliary path two has an association relationship with carrier three.
  • the terminal equipment is also configured with carrier four. Then, after the main path is deactivated, the control information on the main path can be transmitted using the resources on any one of the aforementioned carrier 1, carrier 2, and carrier three, but cannot use the uplink resources of carrier four for transmission.
  • the association relationship between the logical channel of the main path and the carrier is no longer applicable.
  • the PDCP control PDU is delivered by the PDCP entity to the RLC entity of the main path for processing (after the RLC header is added, it becomes the RLC PDU)
  • the MAC PDU is formed, it is not subject to the carrier binding relationship configured by the RRC on the logical channel ( That is, the association relationship between the logical channel and the carrier) is restricted.
  • the terminal device may select the first carrier among the carriers that have an association relationship with the logical channel corresponding to the transmission path corresponding to the first radio bearer, so that the selected carrier is still the logical channel corresponding to the transmission path corresponding to the first radio bearer.
  • the carrier of the association relationship is more conducive to not departing from the limitation of the transmission path of the first radio bearer.
  • the terminal device may determine any at least one carrier among the carriers associated with the logical channels included in the main path as the first carrier, and then the first carrier may include any of the carriers associated with the logical channels included in the main path. At least one carrier, or in other words, the first carrier has an association relationship with a logical channel included in the main path.
  • the terminal device when transmitting control information, can only select at least one carrier having an association relationship with the logical channel corresponding to the main path as the first carrier. Specifically, when the control information is transmitted, when the uplink resource belongs to a carrier that has an association relationship with the logical channel corresponding to the main path, the control information can be transmitted on the uplink resource. Otherwise, the control information cannot be transmitted on uplink resources other than the first carrier.
  • the first radio bearer corresponds to three transmission paths: the main path, the auxiliary path one, and the auxiliary path two.
  • the logical channel corresponding to the main path has an association relationship with carrier one
  • the logical channel corresponding to auxiliary path one has an association relationship with carrier two
  • the logical channel corresponding to auxiliary path two has an association relationship with carrier three.
  • the terminal equipment is also configured with carrier four. Then, after the main path is deactivated, the control information on the main path can be transmitted using the resources on the above-mentioned carrier 1, but cannot be transmitted using the uplink resources on the other three carriers.
  • the association relationship between the logical channel of the main path and the carrier can continue to apply. That is, after the PDCP control PDU is submitted by the PDCP entity to the RLC entity of the main path for processing (after the RLC header is added, it becomes the RLC PDU), when the MAC PDU is formed, it is restricted by the carrier binding relationship configured by the RRC on the logical channel
  • the RLC PDU can only be transmitted on the uplink grant (UL grant) of the carrier or cell that has an association relationship with the logical channel corresponding to the main path.
  • the association relationship between the logical channel and the carrier of the main path can continue to apply means that for control information, the association relationship between the logical channel and the carrier of the main path can continue to apply, while for data PDUs In other words, the main path is no longer used for the transmission of data PDUs.
  • the main path is only used to transmit PDCP control PDUs.
  • the terminal device does not need to perform additional processing on the main path, which is the same as the transmission state before deactivation, which reduces The processing complexity of the terminal equipment.
  • the above three methods are just examples, and the embodiments of the present application do not limit the manner in which the terminal device selects the first carrier (or in other words, it does not limit the range in which the terminal device selects the first carrier).
  • the terminal device uses the above to select the first carrier, it can be determined by the terminal device itself, or configured by the network device, or it can be stipulated through an agreement. If the terminal device uses the above method to select the first carrier is determined by the terminal device itself, the terminal device can inform the network device of the determined selection method, so that the network device can allocate uplink resources to the terminal device.
  • the terminal device uses to select the first carrier can be configured by the network device. Then one configuration method is that the first signaling may also indicate that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is applicable or not applicable to the control information.
  • the network device may also send second signaling to the terminal device. The second signaling may indicate that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is applicable or not applicable to the control information.
  • the terminal device After receiving the second signaling from the network device, the terminal device can determine whether the association relationship between the logical channel and the carrier corresponding to the main path is applicable or not applicable to the control information.
  • the network device can send the first signaling and the second signaling at the same time, or it can send the first signaling first and then the second signaling, or it can send the second signaling first. Send the first signaling after the command.
  • the terminal device can use the third selection method described above to select the first carrier; Or, if the network device indicates that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is not applicable to the control information, the terminal device can use the first selection method or the second selection method as described above. A selection method to select the first carrier.
  • the first signaling or the second signaling sent by the network device may also indicate a specific selection method. For example, it may indicate the first selection method, the second selection method, or the third selection method, and the terminal device will follow the network Just select the first carrier in the selection mode indicated by the device.
  • the main path is only used to transmit PDCP control PDU.
  • the network device can dynamically indicate, for example, the network device can according to More flexible control of transmission status or link conditions or load status.
  • the terminal device when it is specified that PDCP control PDU is only allowed to be transmitted on the primary path of the first radio bearer, after the primary path is deactivated by limiting the primary path, whether the carrier binding relationship on the primary path is applicable to PDCP control PDU to specify the transmission behavior of the terminal device, the terminal device can clarify how to transmit the PDCP control PDU in this scenario, and avoid the uncertainty of the terminal device behavior.
  • a carrier also has an activated state and a deactivated state.
  • the terminal device only selects the carrier in the activated state.
  • S62 is an optional step.
  • the terminal device sends the first control information on the first carrier through the main path, and the network device receives the first control information from the terminal device.
  • the first carrier is at least one of a plurality of carriers configured for the terminal device.
  • the terminal device can continue to send control information on the uplink resource on the first carrier through the main path. For example, if the terminal device sends the first control information, the network device can receive the control information from the terminal device according to the corresponding uplink resource.
  • the terminal device needs to transmit control information as an example.
  • the PDCP data PDU that needs to be transmitted on the main path (for example, data that needs to be retransmitted or not transmitted) Packets, etc.) can also be processed in a similar manner as above, only by replacing the "control information" in the embodiment shown in FIG. 6 with "data packets (or PDCP data PDU)".
  • the above introduction is only the main path, and for the auxiliary path, if the auxiliary path is deactivated, the PDCP data PDU that needs to be transmitted on the auxiliary path (for example, data packets that need to be retransmitted or not completed) are also all It can be handled in a similar way as above. Therefore, the method provided in the embodiment of the present application is not only applicable to PDCP control PDU, but also applicable to PDCP data PDU, and has a wider application range.
  • the association relationship between the logical channel and the carrier corresponding to the main path is not applicable; or, when the main path is in the active state , When sending PDCP data PDU through the main path, the association relationship between the logical channel corresponding to the main path and the carrier is applicable; or, when the main path is active, when sending PDCP control PDU through the main path, the logic corresponding to the main path.
  • the association relationship between the channel and the carrier is not applicable, and when the main path is active, when PDCP data PDU is sent through the main path, the association relationship between the logical channel and the carrier corresponding to the main path is applicable.
  • the PDCP control PDU transmission on the main path does not apply to the carrier binding relationship.
  • the terminal device can choose to transmit PDCP according to the first selection method or the second selection method described above. Control the carrier of the PDU, and PDCP data PDU transmission on the main path applies the carrier binding relationship. The reason for this is that the PDCP control PDU does not improve reliability through repeated transmission, and not limiting the transmission carrier will make the transmission more flexible and increase the system transmission capacity.
  • the PDCP entity when the PDCP entity submits a PDU to the RLC entity, it needs to inform the RLC entity that the type of the PDU is PDCP data PDU or PDCP control PDU, or the RLC entity can also learn by reading the PDU header.
  • the type of PDU The RLC entity can inform the MAC entity of the type of the PDU.
  • the MAC entity After receiving the UL grant, the MAC entity performs LCP processing to select a logical channel, even if the carrier binding relationship of a certain logical channel restricts the PDCP data PDU of the logical channel from being transmitted in the UL grant, but as long as the logical channel If there is a PDCP control PDU to be transmitted, the logical channel can be listed as a candidate logical channel and uplink resources can be allocated to it.
  • the PDU containing the PDCP control PDU has a chance to be transmitted.
  • the PDCP control PDU may be transmitted first, because the control information carried in the PDCP control PDU may be more important than the data.
  • the main path can continue to transmit control information, which reduces the probability of control information loss.
  • control information is generally more important, which enables network devices to obtain control information in time to make corresponding decisions.
  • the first carrier may include at least one carrier among the carriers configured for the terminal device, so that the selection range of the first carrier is wider, which helps to select a more suitable or better quality carrier as the first carrier, thereby improving The success rate of control information transmission.
  • control information is only transmitted on the main path.
  • transmission path of the control information is not limited.
  • control information can be transmitted on the primary path or on the auxiliary path.
  • FIG. 8 is a flowchart of this method.
  • the application of this method to the network architecture shown in FIG. 4 or FIG. 5 is taken as an example.
  • the method executed by the network device and the terminal device is taken as an example.
  • the network device described below may be the network device in the network architecture shown in FIG. 4
  • the terminal device described below may be the network device shown in FIG. 4.
  • the terminal equipment in the network architecture shown or, if this embodiment is applied to the network architecture shown in FIG. 5, therefore, the network device described below may be the first network device or the second network device in the network architecture shown in FIG.
  • the terminal device described may be a terminal device in the network architecture shown in FIG. 5.
  • the network device sends the first signaling to the terminal device, and the terminal device receives the first signaling from the network device.
  • the first signaling may indicate at least one transmission path for control information, or in other words, the first signaling may indicate at least one transmission path for control information.
  • S81 may also include S83, where the network device determines the at least one transmission path.
  • the first signaling may be signaling for configuring the repetitive function of PDCP for the first radio bearer. That is, the first signaling is also used to configure the repetitive function of PDCP for the first radio bearer.
  • the data packet for example, PDCP data PDU
  • the data packet in the first radio bearer configured with the PDCP repeat function is copied into at least two copies at the PDCP layer, and is respectively transmitted through at least two transmission paths.
  • the at least two transmission paths mentioned here may include at least one transmission path indicated by the first signaling.
  • the first signaling may be signaling used to activate the primary path or the secondary path corresponding to the first radio bearer.
  • the activation of a transmission path mentioned here mainly refers to the repetitive function of activating the PDCP of the transmission path. For example, after the main path is activated, it can transmit replicated data packets.
  • the first signaling may also be signaling used to deactivate the primary path or the secondary path.
  • the deactivation of a transmission path mentioned here mainly refers to the deactivation of the PDCP repetitive function of the transmission path. For example, after the main path is deactivated, the copied data packet cannot be transmitted.
  • the first signaling may also be newly added in the embodiment of the present application, and is dedicated to signaling indicating at least one transmission path. There is no restriction on the implementation of the first signaling.
  • the at least one transmission path indicated by the first signaling may include the main path, or include the auxiliary path, or include the main path and the auxiliary path.
  • the primary path and the secondary path are both transmission paths corresponding to the first radio bearer.
  • the first radio bearer may correspond to one primary path, and may also correspond to one or more secondary paths. If the at least one transmission path indicated by the first signaling includes the auxiliary path corresponding to the first radio bearer, the at least one transmission path may include all or part of the auxiliary path corresponding to the first radio bearer.
  • the transmission path such as the primary path or the secondary path, etc.
  • the transmission priority of the main path can be specified by the protocol.
  • the protocol can specify that the transmission priority of the main path is the highest, or the protocol specifies that the main path has priority for transmission. If this is the case, the at least one transmission path indicated by the first signaling may not include the primary path but only the secondary path, because the transmission priority of the primary path no longer needs to be indicated.
  • the transmission priority refers to the priority or sequence of selecting the transmission path when transmitting control information, and the path with higher transmission priority will be preferentially selected for transmission of control information.
  • only paths in the active state will be selected for transmission of control information. It is specified in advance that the transmission priority of the main path is the highest, so that the control information can be transmitted on the main path as much as possible, which is beneficial to compatibility with the existing method.
  • At least one transmission path indicated by the first signaling may include the primary path and not the secondary path, or include the secondary path.
  • the path does not include the main path, or includes both the main path and the auxiliary path.
  • the transmission priority of each transmission path can be configured by the network device.
  • the network device can be flexibly configured according to the channel quality or load condition of the transmission path, which can improve the transmission quality.
  • the first signaling may also indicate the transmission priority of the at least one transmission path.
  • the first signaling indicates the main path, the first auxiliary path, and the second auxiliary path, and the first signaling may indicate that the transmission priority of these three transmission paths is the transmission priority of the main path> the transmission priority of the first auxiliary path.
  • the first signaling indicates the main path, the first auxiliary path, and the second auxiliary path, and the first signaling may indicate that the transmission priority of the main path is the highest, and the transmission priority of the first auxiliary path is the second highest.
  • the transmission priority of the second auxiliary path is the lowest, and so on, and so on.
  • the number of at least one transmission path may also be equal to 1.
  • the first signaling does not need to indicate the transmission of the transmission path.
  • priority is the signaling used to deactivate the main path, so when the main path is deactivated, the network device can also indicate a transmission path, and the terminal device can transmit control information through the transmission path without additional s Choice.
  • the first signaling in S81 indicates at least one transmission path of control information, which may specifically mean that the first signaling indicates the transmission priority of at least one transmission path.
  • the first signaling may indicate the transmission priority of the at least one transmission path.
  • the first signaling may indicate the transmission priority of the primary path>the transmission priority of the first auxiliary path>the transmission priority of the second auxiliary path.
  • the first signaling only indicates the priority of the transmission path, but may not indicate the specific transmission path.
  • the terminal device sends the first control information through the main path or at least one transmission path indicated by the first signaling, and the network device receives the first control information from the terminal device.
  • the terminal device can send control information through at least one transmission path indicated by the first signaling.
  • the transmission priority of the main path can be specified by the protocol.
  • the protocol can specify that the transmission priority of the main path is the highest, but the current main path is in the deactivated state, or the main path is deactivated, then the terminal device can also pass the first At least one transmission path indicated by a signaling sends control information.
  • the control information may be included in the PDCP control PDU, for example. For example, what the terminal device sends is the first control information.
  • the terminal device may send the first control information through the transmission path.
  • the terminal device may first select a transmission path from the at least one transmission path, and then pass the The transmission path sends the first control information. For example, the terminal device selects the first transmission path from at least one transmission path to send the first control information.
  • the first transmission path is, for example, the transmission path with the highest transmission priority among the at least one transmission path, that is, the terminal device selects the transmission path with the highest transmission priority from the at least one transmission path to send the first control information.
  • the terminal device may determine the transmission priority of at least one transmission path according to the first signaling.
  • the network device can also determine the first transmission path in the same manner, so that the first control information from the terminal device can be correctly received through the first transmission path. Selecting the transmission path with the highest transmission priority to send the first control information can increase the success rate of sending the first control information.
  • the transmission priority of the main path can be specified by the protocol, for example, the protocol can specify, the transmission priority of the main path is the highest. Then, when the main path is in the active state, the terminal device may not send the first control information according to at least one transmission path indicated by the first signaling, but send the first control information through the main path.
  • the network device can also determine that the transmission priority of the main path is the highest and the main path is in an active state, so that the network device can correctly receive the first control information from the terminal device through the main path. In this way, the main path can be selected as far as possible to send control information. Generally, the main path has better channel quality, which can improve the success rate of control information transmission.
  • the terminal device may be based on all of the at least one transmission path. Or the current state of part of the transmission path, and the transmission priority of the transmission path, determine which transmission path should be selected to send control information. For example, the terminal device may select the transmission path in the active state to send the control information according to the order of the transmission priority of the transmission path from high to low.
  • the priority of at least one transmission path indicated by the first signaling is the transmission priority of the primary path>the transmission priority of the first auxiliary path>the transmission priority of the second auxiliary path.
  • the terminal device After receiving the first signaling, if the terminal device determines that the status of the primary path is the active state, the terminal device can send the first control information through the primary path without determining the status of the first auxiliary path and the second auxiliary path. If, after receiving the first signaling, the terminal device determines that the state of the primary path is the deactivated state, the terminal device can determine the state of the first auxiliary path, and so on.
  • the main path is in an active state, and the terminal device sends the first control information through the main path as an example.
  • the terminal device After a period of time, the main path is deactivated. After determining that the main path is deactivated, the terminal device can determine the status of the first auxiliary path. If the status of the first auxiliary path is active, the terminal device can Select the first auxiliary path to send control information, for example, second control information is sent, and if the state of the first auxiliary path is in the deactivated state, the terminal device can determine the state of the second auxiliary path, and so on. For example, the state of the first auxiliary path is in the deactivated state, and the state of the second auxiliary path is in the activated state. The terminal device chooses to send the second control information through the second auxiliary path, and the network device receives the second auxiliary path from the terminal device.
  • control information refer to S83 for this.
  • the terminal device may continue to send control information through the second auxiliary path after determining that the first auxiliary path is activated, for example, the third control information, or it may be changed.
  • FIG. 8 takes the terminal device changing to send the third control information through the first auxiliary path as an example.
  • S84 Since the first auxiliary path has a higher transmission priority than the second auxiliary path, sending control information through the first auxiliary path helps to improve transmission quality. Another situation is that a transmission path with a low transmission priority is being used to transmit control information. When a transmission path with a higher priority is activated, the terminal device can select a transmission path with a higher priority to transmit control information.
  • the terminal device may determine the transmission path for sending control information according to the state of the transmission path.
  • the terminal device can also adjust the transmission path of the control information in time, so that it can choose the transmission path with higher transmission priority to send the control information as much as possible.
  • the transmission path can be replaced in time when the transmission path with higher transmission priority is deactivated, so as to improve the transmission success rate of control information.
  • a situation can also be considered.
  • the transmission path for example, the main path, or a transmission path indicated by the first signaling
  • the terminal device can change the transmission path according to the indication of the first signaling when transmitting the control information next time, but the control information being transmitted at this time may be discarded.
  • the control information when the transmission path used to transmit control information is deactivated, if there is still control information being transmitted in the transmission path, the control information can continue to be transmitted through the transmission path.
  • the terminal device may select another transmission path to transmit according to the indication of the first signaling.
  • the terminal device can discard it normally. After that, the terminal device can select another transmission path according to the indication of the first signaling, and retransmit the control information through the selected transmission path. No matter which method is adopted, the probability of control information loss can be reduced, and the transmission success rate of control information can be improved.
  • the network device can dynamically indicate the transmission path.
  • the network device can perform more flexible control according to factors such as transmission status or link conditions or load status.
  • the terminal device can judge according to the instructions of the network device or through certain rules, after the main path is deactivated, on which transmission path the PDCP control PDU is transmitted, which clarifies the transmission behavior of the terminal device on the PDCP control PDU.
  • the transmission path of the control information is not limited.
  • the control information can be transmitted on the main path or on the auxiliary path.
  • Another embodiment is provided below.
  • the control information can also be transmitted on the primary path or on the auxiliary path.
  • the difference from the embodiment shown in FIG. 8 is that in the following embodiment, which transmission path the control information is transmitted on can be determined by the terminal device itself.
  • FIG. 9 is a flowchart of this method.
  • the application of this method to the network architecture shown in FIG. 4 or FIG. 5 is taken as an example.
  • the method executed by the network device and the terminal device is taken as an example.
  • the network device described below may be the network device in the network architecture shown in FIG. 4
  • the terminal device described below may be the network device shown in FIG. 4.
  • the terminal equipment in the network architecture shown or, if this embodiment is applied to the network architecture shown in FIG. 5, therefore, the network device described below may be the first network device or the second network device in the network architecture shown in FIG.
  • the terminal device described may be a terminal device in the network architecture shown in FIG. 5.
  • the terminal device sends the first control information through the first transmission path, and the network device receives the first control information from the terminal device.
  • the first radio bearer may correspond to one or more transmission paths, and the first transmission path is one of the transmission paths corresponding to the first radio bearer.
  • the first transmission path may be the main path in the transmission path corresponding to the first radio bearer, or may also be the auxiliary path in the transmission path corresponding to the first radio bearer.
  • S61 for content such as the transmission path corresponding to the first radio bearer, reference may be made to the related introduction of S61 in the embodiment shown in FIG. 6.
  • the network device sends the first signaling to the terminal device, and the terminal device receives the first signaling from the network device.
  • the first signaling is used to deactivate the first transmission path.
  • the terminal device may perform a corresponding operation to deactivate the first transmission path, so that the first transmission path is deactivated.
  • the terminal device sends the second control information through the second transmission path, and the network device receives the second control information from the terminal device.
  • the second transmission path is one of the transmission paths corresponding to the first radio bearer, and the second transmission path and the first transmission path are not the same transmission path.
  • the terminal device if the first transmission path for transmitting control information is deactivated, the terminal device no longer transmits control information through the first transmission path. In this case, the terminal device may also continue to transmit control information through another transmission path of the first radio bearer, thereby reducing the probability of control information loss. In addition, control information is generally more important, which enables network devices to obtain control information in time to make corresponding decisions.
  • At least one carrier associated with the logical channel corresponding to the second transmission path may include the primary carrier.
  • the terminal device may select the transmission path corresponding to the logical channel associated with the main carrier as the second transmission path.
  • the primary carrier here may refer to the primary carrier corresponding to the first transmission path.
  • a prerequisite for implementing this method is that the primary carrier corresponding to the first transmission path is in an active state.
  • the first radio bearer may correspond to a PDCP entity, and the PDCP entity may be associated with one or more RLC entities (or logical channels), and each RLC entity (or logical channel) may be associated with one MAC entity.
  • RLC entities or logical channels
  • each RLC entity or logical channel
  • each MAC entity can be associated with one or more carriers.
  • one of the one or more carriers associated with the MAC entity can be configured as the primary carrier (SpCell), and the MAC entity The associated carrier other than the primary carrier may be configured as a secondary carrier (SCell).
  • SpCell primary carrier
  • SCell secondary carrier
  • three RLC entities are associated with a MAC entity, and the MAC entity is associated with three carriers.
  • the carrier located in the middle is configured as the primary carrier of the MAC entity, and the remaining two The carrier is configured as the secondary carrier of the MAC entity.
  • the logical channel included in the first transmission path may have an association relationship with a corresponding carrier.
  • the PDCP control PDU is transmitted on the first transmission path; when the first transmission path is deactivated, the association relationship between the logical channels and carriers of other transmission paths may change, for example After the first transmission path is deactivated, the association relationship between the logical channel and the carrier included in the first transmission path may be deactivated together, so that the carrier that originally has an association relationship with the logical channel included in the first transmission path, It may be changed to establish an association relationship with logical channels included in other transmission paths. That is, the primary carrier or the secondary carrier corresponding to the logical channel included in the first transmission path may be changed to establish an association relationship with the logical channels included in other transmission paths.
  • the terminal The device may determine that the primary carrier of the first transmission path (ie, the primary carrier of the carriers having an association relationship with the logical channels included in the first transmission path) and which transmission path logical channel has established an association relationship, for example, the terminal device determines the first The main carrier of the transmission path has established an association relationship with the logical channel of the second transmission path, and the terminal device can continue to send control information through the second transmission path.
  • the primary carrier of the first transmission path ie, the primary carrier of the carriers having an association relationship with the logical channels included in the first transmission path
  • the terminal device determines the first
  • the main carrier of the transmission path has established an association relationship with the logical channel of the second transmission path, and the terminal device can continue to send control information through the second transmission path.
  • the first transmission path may be a transmission path corresponding to the primary network device, or a transmission path corresponding to the secondary network device, or in other words, the primary transmission path associated with the logical channel included in the first transmission path.
  • the carrier may be the main carrier corresponding to the main network device or the main carrier corresponding to the auxiliary network device.
  • At least one carrier having an association relationship with the logical channel included in the second transmission path may include a carrier having an association relationship with the logical channel included in the transmission path corresponding to the first radio bearer
  • the carrier with the best channel quality in.
  • the terminal device may select the carrier with the best channel quality among the carriers that have an association relationship with all or part of the logical channels included in the transmission path corresponding to the first radio bearer, and determine that it has an association relationship with the carrier with the best channel quality.
  • the transmission path corresponding to the logical channel is used as the second transmission path.
  • the terminal device can measure all or part of the carrier associated with the logical channels included in the transmission path corresponding to the first radio bearer to determine the channel quality of each carrier, so that the terminal device can determine the carrier with the best channel quality.
  • the terminal device may determine that the transmission path corresponding to the logical channel associated with the carrier with the best channel quality is the second transmission path, and the terminal device may send the control information through the second transmission path.
  • the terminal device can determine the carrier with the best channel quality, and transmit the control information through the transmission path corresponding to the logical channel associated with the carrier, which can improve the transmission reliability of the control information.
  • the terminal device can determine the channel quality of the carrier through measurement, which can make the determined channel quality more accurate.
  • the terminal device sends the measurement result to the network device.
  • Another way to determine the channel quality of a carrier is that the network device measures each carrier to determine the channel quality of each carrier, and then sends the measurement result to the terminal device for the terminal device to determine the second transmission path to send control information.
  • the measurement of the terminal equipment or network equipment on the carrier can specifically measure the wireless signal (such as reference signal) transmitted on the carrier, through the quality of the reference signal (such as reference signal receiving power (reference signal receiving power, RSRP))/reference signal receiving Quality (reference signal receiving quality, RSRQ)/signal to interference plus noise ratio (SINR)/received signal strength indication (RSRI), etc.) is used to determine the channel quality of the corresponding carrier.
  • the wireless signal such as reference signal transmitted on the carrier
  • the quality of the reference signal such as reference signal receiving power (reference signal receiving power, RSRP)
  • RSRQ reference signal receiving Quality
  • SINR signal plus noise ratio
  • RSRI signal strength indication
  • Which method the terminal device uses to select the second transmission path, or to select the carrier can be configured by the network device, or it can be stipulated by a protocol, or it can be determined by the terminal device itself.
  • the network device can determine the carrier in the same way as the terminal device (wherein, if the carrier selected by the terminal device is the carrier with the best channel quality, the terminal device can, for example, send the measurement result of the channel of the carrier to the network Device, so that the network device can determine the carrier with the best channel quality; or the terminal device can inform the network device of the carrier with the best channel quality without sending the channel quality measurement result to the network device), then the control information determined by the network device is The transmission path and the transmission path determined by the terminal device are the same transmission path, that is, both are the second transmission path. Therefore, the network device can receive the control information from the terminal device according to the correct transmission path.
  • a situation can also be considered.
  • the terminal device can transmit control information through the second transmission path the next time it is transmitted, but for the control information being transmitted in the first transmission path at this time, there may be a risk of being discarded.
  • the control information when the first transmission path is deactivated, if there is still control information being transmitted in the first transmission path, the control information can continue to be transmitted through the first transmission path.
  • the control information can be transmitted by the terminal device through the second transmission path.
  • the terminal device when the first transmission path is deactivated, if there is still control information being transmitted in the first transmission path, the terminal device can discard it normally. After that, the terminal device can retransmit the control information through the second transmission path. No matter which method is adopted, the probability of control information loss can be reduced, and the transmission success rate of control information can be improved.
  • the terminal device can try to select a transmission path with better channel quality to send the PDCP control PDU, so as to ensure the reliability of PDCP control PDU transmission.
  • the terminal device can judge by certain rules, after the first transmission path is deactivated, on which transmission path the PDCP control PDU is transmitted, which clarifies the transmission behavior of the terminal device on the PDCP control PDU.
  • the upstream process is taken as an example, that is, the control information is sent by the terminal device to the network device as an example.
  • the network device may also need to send control information or send data to the terminal device, and the sending manner may also be similar to the introduction of each embodiment above. That is, although the embodiment shown in FIG. 6, the embodiment shown in FIG. 8, or the embodiment shown in FIG. 9 is only an example of uplink control information, the methods provided by these embodiments are also effective in the process of sending downlink control information. The same applies.
  • FIG. 10 is a schematic block diagram of a communication device 1000 according to an embodiment of the application.
  • the communication device 1000 is, for example, a terminal device 1000.
  • the terminal device 1000 includes a sending module 1020 and a receiving module 1030.
  • a processing module 1010 may also be included.
  • the terminal device 1000 may be a terminal device, or a chip applied to the terminal device, or other combination devices, components, etc. having the above-mentioned terminal device functions.
  • the transmitting module 1020 may be a transmitter
  • the receiving module 1030 may be a receiver
  • the transmitter or receiver may include an antenna and a radio frequency circuit
  • the processing module 1010 may be a processor
  • the processor may be It includes one or more central processing units (central processing units, CPUs).
  • the sending module 1020 and the receiving module 1030 may be radio frequency units, and the processing module 1010 may be a processor, such as a baseband processor.
  • the sending module 1020 and the receiving module 1030 may be input and output interfaces of a chip (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 1010 may be used to perform all operations performed by the terminal device in the embodiment shown in FIG. 6 except for receiving and sending operations, such as S62, and/or other processes used to support the technology described herein.
  • the sending module 1020 may be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 6, such as S63, and/or other processes used to support the technology described herein.
  • the receiving module 1030 may be used to perform all receiving operations performed by the terminal device in the embodiment shown in FIG. 5, such as S61, and/or other processes used to support the technology described herein.
  • the sending module 1020 and the receiving module 1030 can be a functional module, which can complete both the sending operation and the receiving operation.
  • the functional module can be called a transceiver module.
  • the transceiver module can be used to perform the All the sending and receiving operations performed by the terminal device in the embodiment.
  • the transceiver module can be considered as a sending module, and when performing a receiving operation, the transceiver module can be considered as a receiving module; or
  • the module 1020 and the receiving module 1030 can also be two functional modules.
  • the transceiver module can be regarded as a collective term for these two functional modules.
  • the two functional modules are the sending module 1020 and the receiving module 1030 respectively.
  • the sending module 1020 is used to complete the sending operation.
  • the sending module 1020 can be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 6, and the receiving module 1030 is used to complete the receiving operation.
  • the receiving module 1030 can be used to perform the implementation shown in FIG. In the example, all the receiving operations performed by the terminal device.
  • the receiving module 1030 is configured to receive first signaling from a network device, and the first signaling is used to deactivate the main path corresponding to the first radio bearer, where the first radio bearer is configured with PDCP repetition Features;
  • the sending module 1020 is configured to send first control information on a first carrier through the main path, where the first carrier is at least one of a plurality of carriers configured for a terminal device.
  • the processing module 1010 is configured to determine the first carrier.
  • the first carrier has an association relationship with the logical channels included in the main path; or,
  • the first carrier and the logical channels included in the transmission path corresponding to the first radio bearer have an association relationship; or,
  • the first carrier is any carrier configured for the terminal device.
  • the first signaling is also used to indicate that after the main path is deactivated, the association relationship between the logical channel and the carrier corresponding to the main path is different from the first signal.
  • the transmission of control information is applicable or not applicable.
  • the first control information includes PDCP control PDU.
  • the association relationship between the logical channel and the carrier corresponding to the main path is not applicable; and/or,
  • the association relationship between the logical channel and the carrier corresponding to the main path is applicable.
  • FIG. 11 is a schematic block diagram of a communication device 1100 according to an embodiment of the application.
  • the communication apparatus 1100 is, for example, a terminal device 1100.
  • the terminal device 1100 includes a sending module 1120 and a receiving module 1130.
  • a processing module 1110 may also be included.
  • the terminal device 1100 may be a terminal device, or may be a chip applied in the terminal device or other combination devices, components, etc. having the above-mentioned terminal device functions.
  • the sending module 1120 may be a transmitter
  • the receiving module 1130 may be a receiver
  • the transmitter or receiver may include an antenna and a radio frequency circuit
  • the processing module 1110 may be a processor
  • the processor may be Including one or more CPUs.
  • the sending module 1120 and the receiving module 1130 may be radio frequency units, and the processing module 1110 may be a processor, such as a baseband processor.
  • the sending module 1120 and the receiving module 1130 may be input and output interfaces of a chip (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 1110 may be used to perform all operations performed by the terminal device in the embodiment shown in FIG. 8 except for the transceiving operation, such as determining the transmission path for transmitting the first control information, and/or Other processes used to support the technology described in this article.
  • the sending module 1120 may be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 8, such as S82-S84, and/or other processes used to support the technology described herein.
  • the receiving module 1130 may be used to perform all receiving operations performed by the terminal device in the embodiment shown in FIG. 8, such as S81, and/or other processes used to support the technology described herein.
  • the sending module 1120 and the receiving module 1130 may be a functional module, which can complete both the sending operation and the receiving operation.
  • the functional module can be called a transceiver module.
  • the transceiver module can be used to perform the All the sending and receiving operations performed by the terminal device in the embodiment.
  • the transceiver module can be considered as a sending module, and when performing a receiving operation, the transceiver module can be considered as a receiving module; or
  • the module 1120 and the receiving module 1130 can also be two functional modules.
  • the transceiver module can be regarded as a collective term for these two functional modules.
  • the two functional modules are the sending module 1120 and the receiving module 1130 respectively.
  • the sending module 1120 is used to complete the sending operation.
  • the sending module 1120 can be used to perform all sending operations performed by the terminal device in the embodiment shown in FIG. 8, and the receiving module 1130 is used to complete receiving operations.
  • the receiving module 1130 can be used to perform the implementation shown in FIG. In the example, all the receiving operations performed by the terminal device.
  • the receiving module 1130 is configured to receive first signaling from a network device, where the first signaling is used to indicate at least one transmission path of control information, and the at least one transmission path is a transmission path corresponding to the first radio bearer ;
  • the sending module 1120 is configured to send first control information through the main path corresponding to the first radio bearer or the at least one transmission path.
  • the receiving module 1130 is configured to receive first signaling from a network device, where the first signaling is used to indicate at least one transmission path of control information, and the at least one transmission path is a transmission path corresponding to the first radio bearer ;
  • the processing module 1120 is configured to send the first control information through the main path corresponding to the first radio bearer or the at least one transmission path through the sending module 1120.
  • the processing module 1110 is configured to determine a transmission path for sending the first control information.
  • the first signaling is further used to indicate the transmission priority of the at least one transmission path
  • the sending module 1120 is configured to use the at least one indicated by the first signaling in the following manner.
  • One transmission path sends the first control information:
  • the processing module 1110 is further configured to select the first transmission path as the transmission path of the first control information according to the transmission priority of the at least one transmission path, or, when the main path is in the deactivated state, according to the The transmission priority of the at least one transmission path, selecting the first transmission path as the transmission path of the first control information;
  • the sending module 1120 is configured to send the first control information through the first transmission path determined by the processing module 1110.
  • the first signaling is also used to indicate the transmission priority of the at least one transmission path
  • the processing module 1110 is configured to pass the first signaling through the sending module 1120 in the following manner.
  • the at least one transmission path indicated by the signaling sends first control information:
  • the first transmission path is selected as the transmission path of the first control information, or, when the main path is in the deactivated state, according to the transmission of the at least one transmission path Priority, selecting the first transmission path as the transmission path of the first control information;
  • the sending module 1120 Through the sending module 1120, the first control information is sent through the first transmission path.
  • the first transmission path is a transmission path with the highest transmission priority among the at least one transmission path.
  • the sending module 1120 is configured to send the first control information through the main path in the following manner:
  • the first control information is sent through the main path.
  • the processing module 1110 is configured to send the first control information through the main path through the sending module 1120 in the following manner:
  • the sending module 1120 is used to send the first control information through the main path.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • FIG. 12 is a schematic block diagram of a communication device 1200 according to an embodiment of the application.
  • the communication apparatus 1200 is, for example, a network device 1200.
  • the network device 1200 includes a processing module 1210 and a sending module 1220.
  • a receiving module 1230 may also be included.
  • the network device 1200 may be a network device, or may be a chip applied in the network device or other combination devices, components, etc. having the above-mentioned network device functions.
  • the sending module 1220 may be a transmitter
  • the receiving module 1230 may be a receiver
  • the transmitter or receiver may include an antenna and a radio frequency circuit
  • the processing module 1210 may be a processor
  • the processor may be Including one or more CPUs.
  • the sending module 1220 and the receiving module 1230 may be radio frequency units, and the processing module 1210 may be a processor, such as a baseband processor.
  • the sending module 1220 and the receiving module 1230 may be input and output interfaces of a chip (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 1210 may be used to perform all operations performed by the network device in the embodiment shown in FIG. 8 except for the transceiving operation, for example, determining the transmission path for the terminal device to send control information, and/or Other processes used to support the technology described in this article.
  • the sending module 1220 may be used to perform all the sending operations performed by the network device in the embodiment shown in FIG. 8, such as S81, and/or other processes used to support the technology described herein.
  • the receiving module 1230 may be used to perform all receiving operations performed by the network device in the embodiment shown in FIG. 8, such as S82-S84, and/or other processes used to support the technology described herein.
  • the sending module 1220 and the receiving module 1230 may be a functional module, which can complete both the sending operation and the receiving operation.
  • the functional module can be called a transceiver module.
  • the transceiver module can be used to perform the All the sending and receiving operations performed by the network device in the embodiment.
  • the transceiver module can be considered as the sending module, and when performing the receiving operation, the transceiver module can be considered as the receiving module; or, when the sending operation is performed, the transceiver module can be considered as the receiving module.
  • the module 1220 and the receiving module 1230 can also be two functional modules.
  • the transceiver module can be regarded as a collective term for these two functional modules.
  • the two functional modules are the sending module 1220 and the receiving module 1230 respectively.
  • the sending module 1220 is used to complete the sending operation.
  • the sending module 1220 can be used to perform all the sending operations performed by the network device in the embodiment shown in FIG. 8
  • the receiving module 1230 is used to complete the receiving operation.
  • the receiving module 1230 can be used to perform the implementation shown in FIG. In the example, all the receiving operations performed by the network device.
  • the processing module 1210 is configured to determine at least one transmission path, the at least one transmission path is a transmission path corresponding to the first radio bearer, and the at least one transmission path is used for the terminal device to send control information;
  • the sending module 1220 is configured to send first signaling to the terminal device, where the first signaling is used to indicate the at least one transmission path.
  • the first signaling is further used to indicate the transmission priority of the at least one transmission path.
  • the first signaling is also used to configure the PDCP repetition function for the first radio bearer, wherein the data packets in the first radio bearer configured with the PDCP repetition function are copied at the PDCP layer to at least Two copies, respectively transmitted through at least two transmission paths, the at least two transmission paths including the at least one transmission path; or,
  • the first signaling is also used to activate the main path, wherein, after the main path is activated, the main path is used to transmit the copied data packet; or,
  • the first signaling is also used to deactivate the main path, where after the main path is deactivated, the main path is no longer used to transmit the copied data packet.
  • FIG. 13 is a schematic block diagram of a communication device 1300 according to an embodiment of the application.
  • the communication apparatus 1300 is a terminal device 1300, for example.
  • the terminal device 1300 includes a sending module 1320 and a receiving module 1330.
  • a processing module 1310 may also be included.
  • the terminal device 1300 may be a terminal device, or may be a chip applied in the terminal device or other combination devices, components, etc. having the above-mentioned terminal device functions.
  • the transmitting module 1320 may be a transmitter
  • the receiving module 1330 may be a receiver
  • the transmitter or receiver may include an antenna and a radio frequency circuit
  • the processing module 1310 may be a processor
  • the processor may be Including one or more CPUs.
  • the sending module 1320 and the receiving module 1330 may be radio frequency units, and the processing module 1310 may be a processor, such as a baseband processor.
  • the sending module 1320 and the receiving module 1330 may be input and output interfaces of a chip (such as a baseband chip), and the processing module may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 1310 can be used to perform all operations performed by the terminal device in the embodiment shown in FIG. 9 except for the transceiving operation, such as deactivating the first transmission path, and/or to support the operations described herein. Other processes of the described technology.
  • the sending module 1320 may be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 9, such as S91 and S92, and/or other processes used to support the technology described herein.
  • the receiving module 1330 may be used to perform all receiving operations performed by the terminal device in the embodiment shown in FIG. 9, such as S93, and/or other processes used to support the technology described herein.
  • the sending module 1320 and the receiving module 1330 can be a functional module, which can complete both the sending operation and the receiving operation.
  • the functional module can be called a transceiver module.
  • the transceiver module can be used to perform the All the sending and receiving operations performed by the terminal device in the embodiment.
  • the transceiver module can be considered as a sending module, and when performing a receiving operation, the transceiver module can be considered as a receiving module; or
  • the module 1320 and the receiving module 1330 can also be two functional modules.
  • the transceiver module can be regarded as a collective term for these two functional modules.
  • the two functional modules are the sending module 1320 and the receiving module 1330 respectively.
  • the sending module 1320 is used to complete the sending operation.
  • the sending module 1320 can be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 9, and the receiving module 1330 is used to complete the receiving operation.
  • the receiving module 1330 can be used to perform the implementation shown in FIG. In the example, all the receiving operations performed by the terminal device.
  • the sending module 1320 is configured to send the first control information through a first transmission path, where the first transmission path is a transmission path corresponding to the first radio bearer;
  • the receiving module 1330 is configured to receive first signaling from a network device, where the first signaling is used to deactivate the first transmission path;
  • the sending module 1320 is further configured to send second control information through the second transmission path corresponding to the first radio bearer.
  • At least one carrier associated with the logical channel corresponding to the second transmission path includes a primary carrier; or,
  • the at least one carrier associated with the logical channel corresponding to the second transmission path includes the carrier with the best channel quality.
  • the embodiment of the present application also provides a communication device, and the communication device may be a terminal device or a circuit.
  • the communication device may be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 14 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 14 only one memory and processor are shown in FIG. 14. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with transceiving functions can be regarded as the transceiving unit of the terminal device (the transceiving unit can be a functional unit that can realize the sending and receiving functions; or the transceiving unit can also be It includes two functional units, namely a receiving unit capable of realizing the receiving function and a transmitting unit capable of realizing the transmitting function), and the processor with the processing function is regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiving unit 1410 and a processing unit 1420.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiving unit 1410 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 1410 as the sending unit, that is, the transceiving unit 1410 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 1410 is used to perform sending and receiving operations on the terminal device side in the foregoing method embodiment
  • processing unit 1420 is used to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the transceiver unit 1410 is used to perform all the sending operations and receiving operations of the terminal device in the embodiment shown in FIG. 6, such as S61 and S63, and/or the transceiver unit 1410 is also used to perform support for this text. Other processes of the described technique.
  • the processing unit 1420 is configured to perform all operations performed by the terminal device in the embodiment shown in FIG. 6 except for the transceiving operation, such as S62, and/or the processing unit 1420 is also configured to perform support for the technology described herein Other processes.
  • the transceiving unit 1410 is used to perform all the sending operations and receiving operations of the terminal device in the embodiment shown in FIG. 8, such as S81 to S84, and/or the transceiving unit 1410 is also used to perform support Other processes of the technique described in this article.
  • the processing unit 1420 is configured to perform all operations performed by the terminal device in the embodiment shown in FIG. 8 except for the transceiving operation, such as determining the transmission path for transmitting the first control information, and/or the processing unit 1420 is also used to perform other processes that support the technology described herein.
  • the transceiver unit 1410 is used to perform all the sending operations and receiving operations of the terminal device in the embodiment shown in FIG. 9, such as S91 to S93, and/or the transceiver unit 1410 is also used to perform support Other processes of the technique described in this article.
  • the processing unit 1420 is configured to perform all operations performed by the terminal device in the embodiment shown in FIG. 9 except for the transceiving operation, such as deactivating the first transmission path, and/or the processing unit 1420 is also configured to perform Other processes that support the technology described in this article.
  • the device may include a transceiver unit and a processing unit.
  • the transceiving unit may be an input/output circuit and/or a communication interface;
  • the processing unit is an integrated processor or a microprocessor or an integrated circuit.
  • the device shown in FIG. 15 can be referred to.
  • the device can perform functions similar to the processing module 1010 in FIG. 10.
  • the device can perform functions similar to the processing module 1110 in FIG. 11.
  • the device can perform functions similar to the processing module 1310 in FIG. 13.
  • the device includes a processor 1510, a data sending processor 1520, and a data receiving processor 1530.
  • the processing module 1010 in the foregoing embodiment may be the processor 1510 in FIG. 15 and complete the corresponding function; the sending module 1020 in the foregoing embodiment may be the sending data processor 1520 in FIG.
  • the receiving module 1030 in the foregoing embodiment may be the receiving data processor 1530 in FIG. 15 and completes the corresponding functions.
  • the processing module 1110 in the foregoing embodiment may be the processor 1510 in FIG. 15 and complete corresponding functions; the sending module 1120 in the foregoing embodiment may be the sending data processor 1520 in FIG. 15 and complete the corresponding functions.
  • the function; the receiving module 1130 in the above-mentioned embodiment may be the receiving data processor 1530 in FIG. 15 and complete the corresponding function.
  • the processing module 1310 in the foregoing embodiment may be the processor 1510 in FIG. 15 and complete corresponding functions; the sending module 1320 in the foregoing embodiment may be the sending data processor 1520 in FIG. 15 and complete the corresponding functions.
  • the function; the receiving module 1330 in the above embodiment can be the receiving data processor 1530 in FIG. 15 and completes the corresponding function.
  • channel encoder and the channel decoder are shown in FIG. 15, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.
  • the processing device 1600 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1603 and an interface 1604.
  • the processor 1603 completes the functions of the aforementioned processing module 1010
  • the interface 1604 completes the aforementioned functions of the sending module 1020 and the receiving module 1030.
  • the processor 1603 completes the functions of the aforementioned processing module 1110
  • the interface 1604 completes the aforementioned functions of the sending module 1120 and the receiving module 1130.
  • the processor 1603 completes the functions of the aforementioned processing module 1310, and the interface 1604 completes the aforementioned functions of the sending module 1320 and the receiving module 1330.
  • the modulation subsystem includes a memory 1606, a processor 1603, and a program stored in the memory 1606 and running on the processor. When the processor 1603 executes the program, the terminal device side in the above method embodiment is implemented. Methods. It should be noted that the memory 1606 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1600, as long as the memory 1606 can be connected to the The processor 1603 is fine.
  • the device 1700 includes one or more radio frequency units, such as a remote radio unit (RRU) 1710 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU) 1720 .
  • RRU remote radio unit
  • BBU baseband units
  • the RRU 1710 may be called a transceiver module, and the transceiver module may include a sending module and a receiving module.
  • the sending module corresponds to the sending module 1220 in FIG. 12, and the receiving module corresponds to the receiving module 1230 in FIG. 12.
  • the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 1711 and a radio frequency unit 1712.
  • the RRU 1710 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the BBU1710 part is mainly used for baseband processing, base station control, and so on.
  • the RRU 1710 and the BBU 1720 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1720 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 1210 in FIG. 12, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 1720 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network with a single access standard (such as an LTE network), or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 1720 also includes a memory 1721 and a processor 1722.
  • the memory 1721 is used to store necessary instructions and data.
  • the processor 1722 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 1721 and the processor 1722 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the embodiment of the present application provides a first communication system.
  • the first communication system may include the terminal device involved in the embodiment shown in FIG. 6 described above.
  • the terminal device is, for example, the terminal device 1000 in FIG. 10.
  • the embodiment of the present application provides a second communication system.
  • the second communication system may include the terminal device involved in the embodiment shown in FIG. 8 and the network device involved in the embodiment shown in FIG. 8 described above.
  • the terminal device is, for example, the terminal device 1100 in FIG. 11.
  • the network device is, for example, the network device 1200 in FIG. 12.
  • the embodiment of the present application provides a third communication system.
  • the third communication system may include the terminal device involved in the above-mentioned embodiment shown in FIG. 9.
  • the terminal device is, for example, the terminal device 1300 in FIG. 13.
  • the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 6 provided by the foregoing method embodiment.
  • the process related to the terminal device in the embodiment is not limited to a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 6 provided by the foregoing method embodiment.
  • the process related to the terminal device in the embodiment is not limited to the terminal device, the embodiment.
  • the embodiment of the present application provides a computer-readable storage medium for storing a computer program.
  • the computer program When executed by a computer, the computer can implement the method shown in FIG. 8 provided by the foregoing method embodiment. The process related to the terminal device in the embodiment.
  • the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer can implement the implementation shown in FIG. 8 provided by the foregoing method embodiment The process related to network equipment in the example.
  • the embodiment of the present application provides a computer-readable storage medium for storing a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the method shown in FIG. 9 provided by the foregoing method embodiment. The process related to the terminal device in the embodiment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 6 provided by the above method embodiment Processes related to terminal equipment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 8 provided by the above method embodiment Processes related to terminal equipment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 8 provided by the above method embodiment Processes related to network equipment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 9 provided by the above method embodiment Processes related to terminal equipment.
  • processors mentioned in the embodiments of this application may be a CPU, or other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), ready-made Field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请涉及一种通信方法、装置及设备。接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，第一无线承载配置了PDCP的重复功能。通过主路径在第一载波上发送第一控制信息，第一载波是为终端设备配置的多个载波中的至少一个。在本申请实施例中，即使主路径被去激活，控制信息也依然可以继续在主路径上传输，这就提供了一种合理有效地传输控制信息的方式，减少了控制信息丢失的概率。

Description

一种通信方法、装置及设备 技术领域
本申请涉及移动通信技术领域，尤其涉及一种通信方法、装置及设备。
背景技术
在第五代移动通信技术(the 5th generation，5G)系统中引入了分组数据汇聚协议(packet data convergence protocol，PDCP)层数据的重复传输功能。大致思想是，如果为一个无线承载配置并激活了PDCP层的重复传输功能，则PDCP实体收到的每个数据包都需要复制至少一个相同的数据包，然后多个相同的数据包由PDCP层递交给多个不同的无线链路控制(radio link control，RLC)实体，通过不同的逻辑信道传输到媒体接入控制(media access control，MAC)实体，再由MAC层将多个相同数据包在载波上进行传输。
为了保证数据传输的可靠性，传输到MAC层的多个相同的数据包不能组成同一个MAC协议数据单元(packet data unit，PDU)进行传输，如果组成一个MAC PDU传输，那么如果发生错误，那么多个相同的数据包都会发生错误。所以多个相同的数据包需要通过不同的MAC PDU传输，其中一个MAC PDU传输错误，不会影响其他MAC PDU的传输，而只要一个MAC PDU传输成功，就认为数据包传输成功，相当于可靠性提高了N倍。因此，MAC实体需要将多个相同数据包组装成不同的MAC PDU在不同的载波传输，从而达到重复传输的效果。其中，PDCP实体、RLC实体和MAC实体之间的路径，可以看做一条传输路径。
目前，PDCP重复传输功能仅针对PDCP数据包，而PDCP控制包不会进行重复传输。在PDCP重复传输功能的多条路径被去激活或者激活的时候，PDCP控制包如何传输的问题亟待解决。
发明内容
本申请实施例提供一种通信方法、装置及设备，用于提供一种传输控制信息的方案。
第一方面，提供第一种通信方法，该方法包括：接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，其中，所述第一无线承载配置了PDCP的重复功能；通过所述主路径在所述第一载波上发送第一控制信息，所述第一载波是为终端设备配置的多个载波中的至少一个。
该方法可由第一通信装置执行，第一通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第一通信装置为终端设备，或者为设置在终端设备中的用于实现终端设备的功能的芯片，或者为用于实现终端设备的功能的其他部件。在下文的介绍过程中，以第一通信装置是终端设备为例。
在本申请实施例中，如果主路径被去激活，那么可以确定第一载波，以通过主路径在第一载波上继续发送控制信息。也就是说，即使主路径被去激活，控制信息也依然可以继续在主路径上传输，这就提供了一种合理有效地传输控制信息的方式，减少了控制信息丢失的概率。且控制信息一般来说较为重要，也使得接收端能够及时获取控制信息，从而进 行相应的决策。另外，第一载波可以包括为终端设备配置的载波中的至少一个载波，使得第一载波的选择范围较为宽泛，有助于选择到更为合适或质量更好的载波作为第一载波，从而提高控制信息的发送成功率。
在一种可能的实施方式中，
所述第一载波与所述主路径包括的逻辑信道具有关联关系；或，
所述第一载波与所述第一无线承载对应的传输路径包括的逻辑信道具有关联关系；或，
所述第一载波是为终端设备配置的任意载波。
如果第一载波与主路径包括的逻辑信道具有关联关系，那么表明，终端设备可以选择与主路径包括的逻辑信道具有关联关系的任意的至少一个载波作为第一载波。第一载波可以与主路径包括的逻辑信道具有关联关系，那么在主路径被去激活后，主路径只用于传输控制信息，继续限制载波绑定关系可以使得终端设备不需要对主路径做额外处理，与去激活之前的传输状态一样即可，减少了终端设备的处理复杂度。
或者，如果第一载波与第一无线承载对应的传输路径包括的逻辑信道具有关联关系，那么表明，终端设备可以选择与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的任意的至少一个载波作为第一载波。第一载波可以与第一无线承载对应的传输路径包括的逻辑信道具有关联关系，这里所述的第一无线承载对应的传输路径，可以包括第一无线承载对应的全部传输路径或部分传输路径。如果所述的第一无线承载对应的传输路径包括第一无线承载对应的部分传输路径，那么这部分传输路径中可以包括主路径，也可以不包括主路径。由于控制信息不通过重复传输来提高可靠性，所以不用像数据包一样需要通过载波绑定关系来防止多个相同的控制信息在同一载波上传输。在主路径被去激活以后，主路径只用于传输控制信息，通过不再限制载波绑定关系的方式，可以使得控制信息的传输更加灵活，同时可以在负载较高时提高系统的传输容量。
或者，如果第一载波是为终端设备配置的任意载波，那么表明，终端设备可以选择为终端设备配置的任意的至少一个载波作为第一载波。第一载波可以是为终端设备配置的任意载波。同样的，通过不再限制载波绑定关系的方式，可以使得控制信息的传输更加灵活，同时可以在负载较高时提高系统的传输容量。并且，第一载波是为终端设备配置的任意载波，可以使得对第一载波的选择范围更为宽泛，有利于终端设备选择到更为合适的载波。
终端设备究竟在如上所述的三种范围中的哪种范围内选择第一载波，可以由网络设备配置，或者可以由协议规定，或者由终端设备确定。如果由终端设备确定，则终端设备可以用于选择第一载波的范围告知网络设备，从而网络设备可以为终端设备分配上行资源。
在一种可能的实施方式中，所述第一信令还用于指示，在所述主路径被去激活后，所述主路径对应的逻辑信道与载波之间的关联关系对于所述第一控制信息的传输适用或不适用。
终端设备究竟使用何种方式选择第一载波，可以由终端设备自行确定，或者由网络设备配置，或者也可以通过协议规定等。例如，如果网络设备指示在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息适用，则终端设备可以确定与主路径包括的逻辑信道具有关联关系的载波中的任意的至少一个载波为第一载波；或者，如果网络设备指示在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息不适用，则终端设备可以确定与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的载波中的任意的至少一个载波为第一载波，或者确定为终端设备配置的任意 载波中的任意的至少一个载波为第一载波。本申请实施例中，在主路径被去激活后，主路径只用于传输控制信息，在传输控制信息时是否限制载波绑定关系，网络设备可以动态地进行指示，例如网络设备可以根据传输状态或者链路条件或者负载状态等进行更为灵活的控制。
在一种可能的实施方式中，所述第一控制信息包括PDCP控制PDU。
第一控制信息可以包括PDCP控制PDU，或者也可以包括其他的信息，具体的不做限制。
在一种可能的实施方式中，所述方法还包括：
当所述主路径处于激活状态时，在通过所述主路径发送PDCP控制PDU时，所述主路径对应的逻辑信道与载波的之间关联关系不适用；和/或，
当所述主路径处于激活状态时，在通过所述主路径发送PDCP数据PDU时，所述主路径对应的逻辑信道与载波的之间关联关系适用。
具体的，当主路径处于激活状态时，在通过主路径发送PDCP控制PDU时，主路径对应的逻辑信道与载波的之间关联关系不适用；或，当主路径处于激活状态时，在通过主路径发送PDCP数据PDU时，主路径对应的逻辑信道与载波的之间关联关系适用；或，当主路径处于激活状态时，在通过主路径发送PDCP控制PDU时，主路径对应的逻辑信道与载波的之间关联关系不适用，以及，当主路径处于激活状态时，在通过主路径发送PDCP数据PDU时，主路径对应的逻辑信道与载波的之间关联关系适用。例如，当主路径处于激活状态时，PDCP控制PDU在主路径上传输不适用载波绑定关系，例如终端设备可以确定与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的载波中的任意的至少一个载波为第一载波，或者确定为终端设备配置的任意载波中的任意的至少一个载波为第一载波，而PDCP数据PDU在主路径上的传输则适用载波绑定关系。这样做的理由是，PDCP控制PDU不通过重复传输来提高可靠性，不限定传输载波会使得传输更灵活，而且可以提高系统传输容量。
第二方面，提供第二种通信方法，该方法包括：接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
该方法可由第二通信装置执行，第二通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第二通信装置为终端设备，或者为设置在终端设备中的用于实现终端设备的功能的芯片，或者为用于实现终端设备的功能的其他部件。在下文的介绍过程中，以第二通信装置是终端设备为例。
在本申请实施例中，网络设备可以动态指示传输路径，例如网络设备可以根据传输状态或者链路条件或者负载状态等因素进行更为灵活的控制。终端设备可以根据网络设备的指示或者通过一定的规则判断，在主路径去激活以后，控制信息在哪个传输路径上进行传输，明确了终端设备对于控制信息的传输行为。
在一种可能的实施方式中，所述第一信令还用于指示所述至少一条传输路径的传输优先级，通过所述第一信令指示的所述至少一条传输路径发送第一控制信息，包括：
根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先 级，选择第一传输路径为所述第一控制信息的传输路径；
通过所述第一传输路径发送所述第一控制信息。
如果主路径的传输优先级并未通过协议等方式规定，而是也由网络设备来指示，那么终端设备就可以按照网络设备的指示来发送控制信息，例如终端设备可以通过第一信令指示的至少一条传输路径发送控制信息。或者，主路径的传输优先级可以通过协议规定，例如协议可以规定，主路径的传输优先级最高，但当前主路径处于去激活状态，或者说主路径被去激活，那么终端设备也可以按照网络设备的指示来发送控制信息，例如通过第一信令指示的至少一条传输路径发送控制信息。终端设备按照网络设备的指示发送控制信息，则网络设备也能够明确终端设备发送控制信息所使用的传输路径，使得网络设备能够正确接收来自终端设备的控制信息。
或者，第一信令指示控制信息的至少一条传输路径，具体可以是指，第一信令指示至少一条传输路径的传输优先级。例如，能够用于传输控制信息的传输路径(即至少一条传输路径)的个数大于1时，第一信令可以指示这至少一条传输路径的传输优先级。在这种实施方式下，第一信令只是指示了传输路径的优先级，但可能并未指示具体的传输路径。终端设备可以按照传输路径的传输优先级从高到低的顺序，选择处于激活状态的传输路径来发送控制信息。也就是说，终端设备在根据第一信令确定至少一条传输路径的优先级后，可以根据传输路径的状态来确定用于发送控制信息的传输路径。而在有传输路径的状态发生改变(例如被激活或者去激活)时，终端设备也能及时调整控制信息的传输路径，从而既可以尽量选择传输优先级较高的传输路径来发送控制信息，也可以在传输优先级较高的传输路径被去激活时及时更换传输路径，提高控制信息的发送成功率。
在一种可能的实施方式中，所述第一传输路径为所述至少一条传输路径中传输优先级最高的传输路径。
如果终端设备确定通过所述的至少一条传输路径发送第一控制信息，且至少一条传输路径的个数为1，则终端设备可以通过该传输路径发送第一控制信息。或者，如果终端设备确定通过所述的至少一条传输路径发送第一控制信息，且至少一条传输路径的个数大于1，那么终端设备可以先从至少一条传输路径中选择一条传输路径，再通过该传输路径发送第一控制信息。例如终端设备从至少一条传输路径中选择了第一传输路径来发送第一控制信息。第一传输路径例如为所述的至少一条传输路径中的传输优先级最高的传输路径，也就是说，终端设备从至少一条传输路径中选择传输优先级最高的传输路径来发送第一控制信息。传输优先级最高的传输路径可能是信道质量较好的传输路径，或者是负载较少的传输路径等，选择传输优先级最高的传输路径来发送第一控制信息，可以提高第一控制信息的发送成功率。
在一种可能的实施方式中，通过所述主路径发送第一控制信息，包括：
当所述主路径处于激活状态时，通过所述主路径发送所述第一控制信息。
如果主路径的传输优先级可以通过协议规定，例如协议可以规定，主路径的传输优先级最高。那么，在主路径处于激活状态的情况下，终端设备就可以不根据第一信令指示的至少一条传输路径来发送第一控制信息，而是通过主路径发送第一控制信息即可。通过这种方式，可以尽量选择主路径来发送控制信息，主路径一般来说信道质量较好，这样可以提高控制信息的发送成功率。
在一种可能的实施方式中，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
也就是说，第一信令可以是用于为第一无线承载配置PDCP的重复功能的信令，或者可以是用于激活第一无线承载对应的主路径的信令，或者也可以是用于去激活第一无线承载对应的主路径的信令等。第一信令可以复用已有的信令，从而提高信令的利用率，且节省信令开销。或者，第一信令也可以是本申请实施例新增的专用于指示控制信息的至少一条传输路径的信令等，将专用信令作为第一信令，可以使得第一信令的指示更为明确。
第三方面，提供第三种通信方法，该方法包括：确定至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径，所述至少一条传输路径用于终端设备发送控制信息；向所述终端设备发送第一信令，所述第一信令用于指示所述至少一条传输路径。
该方法可由第三通信装置执行，第三通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第三通信装置为网络设备，或者为设置在网络设备中的用于实现网络设备的功能的芯片，或者为用于实现网络设备的功能的其他部件。在下文的介绍过程中，以第三通信装置是网络设备为例。
在一种可能的实施方式中，所述第一信令还用于指示所述至少一条传输路径的传输优先级。
在一种可能的实施方式中，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
关于第三方面或各种可能的实施方式的技术效果，可参考对于第二方面或相应的实施方式的技术效果的介绍。
第四方面，提供第四种通信方法，该方法包括：通过第一传输路径发送第一控制信息，所述第一传输路径是第一无线承载对应的传输路径；接收来自网络设备的第一信令，所述第一信令用于去激活所述第一传输路径；通过所述第一无线承载对应的第二传输路径发送第二控制信息。
该方法可由第四通信装置执行，第四通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第四通信装置为终端设备，或者为设置在终端设备中的用于实现终端设备的功能的芯片，或者为用于实现终端设备的功能的其他部件。在下文的介绍过程中，以第四通信装置是终端设备为例。
在本申请实施例中，如果第一传输路径被去激活，终端设备可以尽量选择信道质量较 好的传输路径来发送控制信息，从而保证控制信息传输的可靠性。且本申请实施例中，终端设备可以通过一定的规则判断，在第一传输路径去激活以后，控制信息在哪个传输路径上进行传输，明确了终端设备对于控制信息的传输行为。
在一种可能的实施方式中，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中包含主载波；或，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中，包含信道质量最好的载波。
由于控制信息较为重要，对可靠性有一定要求，而在所有载波中，一般来说主载波的信道质量相比辅载波的信道质量要好，因此在第一传输路径被去激活后，终端设备可以确定第一传输路径的主载波(即，与第一传输路径包括的逻辑信道具有关联关系的载波中的主载波)与哪个传输路径的逻辑信道建立了关联关系，例如终端设备确定第一传输路径的主载波与第二传输路径的逻辑信道建立了关联关系，则终端设备就可以通过第二传输路径继续发送控制信息。在这种方式下，终端设备只需确定第一传输路径对应的主载波所新关联的逻辑信道对应的传输路径，就可以选择到信道质量较好的传输路径，可以提高控制信息的传输质量，且方式较为简单。
或者，例如终端设备可以对与第一无线承载对应的全部或部分传输路径包括的逻辑信道具有关联关系的载波进行测量，确定各载波的信道质量，从而终端设备可以从中确定信道质量最好的载波。终端设备可以确定该信道质量最好的载波关联的逻辑信道所对应的传输路径为第二传输路径，则终端设备就可以通过第二传输路径发送控制信息。在这种方式下，终端设备可以确定信道质量最好的载波，并通过该载波关联的逻辑信道所对应的传输路径传输控制信息，可以提高控制信息的传输可靠性。且终端设备可以通过测量确定载波的信道质量，可以使得所确定的信道质量更为准确。
第五方面，提供一种通信装置，例如该通信装置为如前所述的第一通信装置。所述第一通信装置用于执行上述第一方面或任一可能的实施方式中的方法。具体地，所述第一通信装置可以包括用于执行第一方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第一通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为终端设备。下面以第一通信装置是终端设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第一通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第五方面的介绍过程中，继续以所述第一通信装置是终端设备，以及，以所述处理模块、所述发送模块和所述接收模块为例进行介绍。其中，
所述接收模块，用于接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，其中，所述第一无线承载配置了PDCP的重复功能；
所述发送模块，用于通过所述主路径在第一载波上发送第一控制信息，所述第一载波 是为终端设备配置的多个载波中的至少一个。
在一种可能的实施方式中，所述处理模块，用于确定所述第一载波。
在一种可能的实施方式中，
所述第一载波与所述主路径包括的逻辑信道具有关联关系；或，
所述第一载波与所述第一无线承载对应的传输路径包括的逻辑信道具有关联关系；或，
所述第一载波是为终端设备配置的任意载波。
在一种可能的实施方式中，所述第一信令还用于指示，在所述主路径被去激活后，所述主路径对应的逻辑信道与载波之间的关联关系对于所述第一控制信息的传输适用或不适用。
在一种可能的实施方式中，所述第一控制信息包括PDCP控制PDU。
在一种可能的实施方式中，
当所述主路径处于激活状态时，在通过所述主路径发送PDCP控制PDU时，所述主路径对应的逻辑信道与载波的之间关联关系不适用；和/或，
当所述主路径处于激活状态时，在通过所述主路径发送PDCP数据PDU时，所述主路径对应的逻辑信道与载波的之间关联关系适用。
关于第五方面或各种可能的实施方式的技术效果，可参考对于第一方面或相应的实施方式的技术效果的介绍。
第六方面，提供一种通信装置，例如该通信装置为如前所述的第二通信装置。所述第二通信装置用于执行上述第二方面或任一可能的实施方式中的方法。具体地，所述第二通信装置可以包括用于执行第二方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第二通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为终端设备。下面以第二通信装置是终端设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第二通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第六方面的介绍过程中，继续以所述第二通信装置是终端设备，以及，以所述处理模块、所述发送模块和所述接收模块为例进行介绍。其中，
所述接收模块，用于接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
所述发送模块，用于通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
或者，
所述接收模块，用于接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
所述处理模块，用于通过所述发送模块，通过所述第一无线承载对应的主路径或所述 至少一条传输路径发送第一控制信息。
在一种可能的实施方式中，所述第一信令还用于指示所述至少一条传输路径的传输优先级，所述发送模块用于按照如下方式通过所述第一信令指示的所述至少一条传输路径发送第一控制信息：
所述处理模块，用于根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
通过所述处理模块确定的所述第一传输路径发送所述第一控制信息。
或者，在一种可能的实施方式中，所述第一信令还用于指示所述至少一条传输路径的传输优先级，所述处理模块用于按照如下方式，通过所述发送模块，通过所述第一信令指示的所述至少一条传输路径发送第一控制信息：
根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
通过发送模块以所述第一传输路径发送所述第一控制信息。
在一种可能的实施方式中，所述第一传输路径为所述至少一条传输路径中传输优先级最高的传输路径。
在一种可能的实施方式中，所述发送模块用于按照如下方式通过所述主路径发送第一控制信息：
当所述主路径处于激活状态时，通过所述主路径发送所述第一控制信息。
或者，在一种可能的实施方式中，所述处理模块用于按照如下方式通过所述发送模块，通过所述主路径发送第一控制信息：
当所述主路径处于激活状态时，通过所述发送模块以所述主路径发送所述第一控制信息。
在一种可能的实施方式中，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
关于第六方面或各种可能的实施方式的技术效果，可参考对于第二方面或相应的实施方式的技术效果的介绍。
第七方面，提供一种通信装置，例如该通信装置为如前所述的第三通信装置。所述第三通信装置用于执行上述第三方面或任一可能的实施方式中的方法。具体地，所述第三通信装置可以包括用于执行第三方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第三通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例 性地，所述通信设备为网络设备。下面以第三通信装置是网络设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第三通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第三通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第七方面的介绍过程中，继续以所述第三通信装置是网络设备，以及，以所述处理模块、所述发送模块和所述接收模块为例进行介绍。其中，
所述处理模块，用于确定至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径，所述至少一条传输路径用于终端设备发送控制信息；
所述发送模块，用于向所述终端设备发送第一信令，所述第一信令用于指示所述至少一条传输路径。
在一种可能的实施方式中，所述第一信令还用于指示所述至少一条传输路径的传输优先级。
在一种可能的实施方式中，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
关于第七方面或各种可能的实施方式的技术效果，可参考对于第三方面或相应的实施方式的技术效果的介绍。
第八方面，提供一种通信装置，例如该通信装置为如前所述的第四通信装置。所述第四通信装置用于执行上述第四方面或任一可能的实施方式中的方法。具体地，所述第四通信装置可以包括用于执行第四方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第四通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为终端设备。下面以第四通信装置是终端设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第四通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第四通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第八方面的介绍过程中，继续以所述第四通信装置是终端设备，以及，以所述处理模块、所述发送模块和所述接收模块为例进行介绍。其中，
所述发送模块，用于通过第一传输路径发送第一控制信息，所述第一传输路径是第一无线承载对应的传输路径；
所述接收模块，用于接收来自网络设备的第一信令，所述第一信令用于去激活所述第一传输路径；
所述发送模块，还用于通过所述第一无线承载对应的第二传输路径发送第二控制信息。
在一种可能的实施方式中，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中包含主载波；或，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中，包含信道质量最好的载波。
关于第八方面或各种可能的实施方式所带来的技术效果，可参考对于第四方面或相应的实施方式的技术效果的介绍。
第九方面，提供一种通信装置，该通信装置例如为如前所述的第一通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第一方面或各种可能的实施方式所描述的方法。或者，第一通信装置也可以不包括存储器，存储器可以位于第一通信装置外部。可选的，第一通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第一方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第一通信装置执行上述第一方面或任意一种可能的实施方式中的方法。示例性地，所述第一通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为终端设备。
其中，如果第一通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十方面，提供一种通信装置，该通信装置例如为如前所述的第二通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第二方面或各种可能的实施方式所描述的方法。或者，第二通信装置也可以不包括存储器，存储器可以位于第二通信装置外部。可选的，第二通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第二方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第二通信装置执行上述第二方面或任意一种可能的实施方式中的方法。示例性地，所述第二通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为终端设备。
其中，如果第二通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十一方面，提供一种通信装置，该通信装置例如为如前所述的第三通信装置。该通 信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第三方面或各种可能的实施方式所描述的方法。或者，第三通信装置也可以不包括存储器，存储器可以位于第三通信装置外部。可选的，第三通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第三方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第三通信装置执行上述第三方面或任意一种可能的实施方式中的方法。示例性地，所述第三通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为网络设备。
其中，如果第三通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第三通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十二方面，提供一种通信装置，该通信装置例如为如前所述的第四通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第四方面或各种可能的实施方式所描述的方法。或者，第四通信装置也可以不包括存储器，存储器可以位于第四通信装置外部。可选的，第四通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第四方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第二通信装置执行上述第四方面或任意一种可能的实施方式中的方法。示例性地，所述第四通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为终端设备。
其中，如果第四通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第四通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十三方面，提供一种通信系统，该通信系统包括第五方面所述的通信装置或第九方面所述的通信装置。
第十四方面，提供一种通信系统，该通信系统包括第六方面所述的通信装置或第十方面所述的通信装置，以及包括第七方面所述的通信装置或第十一方面所述的通信装置。
第十五方面，提供一种通信系统，该通信系统包括第八方面所述的通信装置或第十二方面所述的通信装置。
第十六方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或任意一种可能的实施方式中所述的方法。
第十七方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或任意一种可能的实施方式中所述的方法。
十八方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机 指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第三方面或任意一种可能的实施方式中所述的方法。
第十九方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第四方面或任意一种可能的实施方式中所述的方法。
第二十方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或的任意一种可能的实施方式中所述的方法。
第二十一方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或的任意一种可能的实施方式中所述的方法。
第二十二方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第三方面或的任意一种可能的实施方式中所述的方法。
第二十三方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第四方面或的任意一种可能的实施方式中所述的方法。
在本申请实施例中，即使主路径被去激活，控制信息也依然可以继续在主路径上传输，这就提供了一种合理有效地传输控制信息的方式，减少了控制信息丢失的概率。
附图说明
图1为DC场景下实现PDCP的重复功能所涉及的网络架构；
图2为CA场景下实现PDCP的重复功能所涉及的网络架构；
图3为在CA场景下，为一个无线承载配置两个逻辑信道时，该无线承载的一个逻辑信道被去激活以后，另一个逻辑信道和载波之间的关联关系也将不适用的示意图；
图4为本申请实施例的一种应用场景示意图；
图5为本申请实施例的另一种应用场景示意图；
图6为本申请实施例提供的第一种通信方法的流程图；
图7为本申请实施例中无线承载对应的传输路径的示意图；
图8为本申请实施例提供的第二种通信方法的流程图；
图9为本申请实施例提供的第三种通信方法的流程图；
图10为本申请实施例提供的第一种终端设备的示意性框图；
图11为本申请实施例提供的第二种终端设备的示意性框图；
图12为本申请实施例提供的网络设备的示意性框图；
图13为本申请实施例提供的第三种终端设备的示意性框图；
图14为本申请实施例提供的通信装置的示意性框图；
图15为本申请实施例提供的通信装置的另一示意性框图；
图16为本申请实施例提供的通信装置的再一示意性框图；
图17为本申请实施例提供的通信装置的又一示意性框图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端设备，包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括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处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。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 initiation 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。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片系统，该装置可以被安装在终端设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提 供的技术方案中，以用于实现终端的功能的装置是终端设备为例，描述本申请实施例提供的技术方案。
2)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种车到一切(vehicle-to-everything，V2X)技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与IP分组进行相互转换，作为终端设备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IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括长期演进(long term evolution，LTE)系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5th generation，5G)新空口(new radio，NR)系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
网络设备还可以包括核心网设备，核心网设备例如包括访问和移动管理功能(access and mobility management function，AMF)等。本申请实施例由于不涉及核心网，因此在后文中如无特殊说明，则所述的网络设备均是指接入网设备。
本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。
3)双连接(dual connectivity，DC)，也就是终端设备同时连接两个基站。终端设备连接的两个基站可以是同一无线接入技术下的基站，例如都是LTE系统中的基站或都是NR系统中的基站，或者终端设备连接的两个基站也可以是不同的无线接入技术下的基站，例如一个是LTE系统中的基站，另一个是NR系统中的基站。
4)载波聚合(carrier aggregation，CA)，CA技术可以将多个成员载波(component carrier，CC)聚合在一起为一个终端设备提供服务，实现更大的传输带宽，有效提高了上下行传输速率。
5)逻辑信道与载波关联，或者说逻辑信道与载波具有关联关系，或者也可以称为逻辑信道与载波具有绑定关系或绑定传输关系等，包括而不限定为，如果在逻辑信道的配置中指示了某些载波允许使用，则表示该逻辑信道中传输的数据可以在这些载波上传输，或者这些载波上的资源可以分配给该逻辑信道，此时可以称为逻辑信道与这些载波关联。进一步的，逻辑信道中传输的数据不在与逻辑信道所关联的载波之外的载波上传输。在PDCP层复制的数据包对应的逻辑信道可以与载波具有关联关系。在一些场景中，如果没有配置载波关联关系，就说明该逻辑信道中传输的数据可以在任意载波上进行传输。
例如，可以为逻辑信道配置一个参数，例如称为参数A，通过参数A的取值来指示不同的载波，表示该逻辑信道中传输的数据只能在参数A指定的载波上进行传输。例如为逻辑信道1配置了参数A，参数A指示载波1和2，那么就表明该逻辑信道,中的数据只能在参数载波1和2上传输。这样，逻辑信道1和载波1以及载波2就可以称为是具有关联关 系，也可以说是绑定关系或者映射关系。
6)PDCP的重复(PDCP duplication)，或者称为，PDCP的重复传输，或者称为，PDCP的重复传输功能，或者称为，PDCP的重复功能，等等，是指，PDCP实体将数据包复制成多份并分别递交到不同RLC实体，进而通过逻辑信道从RLC层传送到MAC层。
7)本申请实施例中的术语“系统”和“网络”可被互换使用。“载波”和“小区”可视为同一概念，可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“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的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的内容、顺序、时序、优先级或者重要程度。例如，第一控制信息和第二控制信息，只是为了区分不同的控制信息，并不是表示这两种控制信息的内容、发送顺序、优先级或者重要程度等的不同。
如上介绍了本申请实施例涉及的一些概念，下面介绍本申请实施例涉及的技术特征。
PDCP的重复功能，通常指将无线承载的数据包在PDCP层复制成多个相同的包(也就是重复包)，然后多个数据包分别递交给多个不同的RLC实体进行传输，进而通过不同的逻辑信道传输到MAC层。其中，逻辑信道是RLC层到MAC层之间的信道。需要注意的是，通常所说的重传是指重新传输(retransmission)，而本申请实施例中的重复传输并不是重新传输。重新发送是指同一个数据包发送失败后的再次发送，或者是同一个数据包的连续多次发送，而重复传输是将一个数据包复制多个数据包，分别放到多个逻辑信道上传输，这里的“重复”，也可以理解为“复制”。
为了保证数据传输的可靠性，传输到MAC层的多个相同的数据包不能通过同一个MAC PDU传输，因为只有通过不同的MAC PDU传输，其中一个PDU丢掉才不会影响其他PDU的传输，相当于可靠性提高了N倍。
下面针对DC场景和CA场景，分别介绍PDCP的重复功能如何实现。
请参见图1，示例性给出了DC场景下实现PDCP的重复功能涉及的网络架构。对于基站来讲，DC场景涉及到主基站和辅基站，则主基站和辅基站针对一个无线承载的网络架构如图1所示，而终端设备针对该无线承载的网络架构，包括图1所示的主基站的网络架构和辅基站的网络架构，也就是，终端设备针对该无线承载，包括一个PDCP实体、两个RLC实体和两个MAC实体。图1中的安全(security)、复制(duplication)、切片(segment)、自动重传请求(automatic repeat-request，ARQ)、多路(mutiplexing)、混合自动重传请求(hybrid automatic repeat request，HARQ)、以及健壮性包头压缩(robust header compression，ROHC)等都是表示PDCP实体、RLC实体或MAC实体的功能。在本文中，PDCP实体与PDCP层可理解为同一概念，同理，RLC实体与RLC层可理解为同一概念，MAC实体与MAC层可理解为同一概念。图1中的圆圈表示不同层之间的接口和/或通道。接口称为层间接口，例如服务接入点(service access point，SAP)，通道例如可以是逻辑信道，下文中也是类似的，不再赘述。需要注意的，图1只是示例性的构架，图中的各个组件并不是 本实施例必不可少的组件。如安全模块可以视情况省略。
在DC场景下，一个终端设备同时连接两个基站，也就是主基站和辅基站，如果为某个无线承载配置了PDCP的重复功能，那么在PDCP层经过复制的两个数据包将被传输给不同的两个RLC实体，并通过不同的逻辑信道传输给不同的MAC实体，最终形成两个MAC PDU在不同的载波上进行传输。这个过程对于基站和终端设备来说都是一样的，不同的是，对于基站来说，主基站中的PDCP层会将经过复制的两个数据包传输给不同的两个RLC实体，这两个RLC实体分别位于主基站和辅基站中，之后，主基站中的RCL实体将接收的数据包传输给主基站中的MAC实体，辅基站中的RCL实体将接收的数据包传输给辅基站中的MAC实体，这两个MAC实体会通过各自的载波传输数据包。而对于终端设备来说，两个RCL实体和两个MAC实体都位于该终端设备中，其他过程都是一样的。
请参见图2，为CA场景下实现PDCP的重复功能所涉及的网络架构。在CA场景下，终端设备连接到一个基站，基站和终端设备针对一个无线承载的网络架构都如图2所示，也就是，基站和终端设备针对该无线承载，都包括一个PDCP实体、两个RLC实体和两个MAC实体。图2中的安全、复制、切片、ARQ、多路、HARQ、以及ROHC等都是表示PDCP实体、RLC实体或MAC实体的功能。
在CA场景中，一个终端设备连接一个基站，同一个基站有多于一个载波为该终端设备服务。假设某个无线承载配置了PDCP的重复功能，那么在PDCP层经过复制的两个数据包将被传输给不同的两个RLC实体，并由这两个RLC实体通过不同的逻辑信道传输给同一个MAC实体。这时候，由于两个数据包传输到了同一个MAC实体中，MAC实体会将这两个数据包放到一个MAC PDU中传输，因此，为了使得这两个数据包通过两个MAC PDU分别传输，可以为逻辑信道配置一个参数，例如称为参数A，通过参数A的取值来指示不同的载波，从而保证这两个数据包最终能形成两个MAC PDU在不同的载波上传输。
例如为某个逻辑信道配置了参数A，那么就表明该逻辑信道对应的RLC实体中的数据只能在参数A所指示的载波上传输。这样，如果为互为重复的两个逻辑信道配置的参数A指示的是不同的载波，那么最终互为重复的两个数据包就会在不同的载波上传输，能够保证可靠性。
在通信系统中，可以为无线承载配置PDCP的重复功能，也可以去激活为无线承载配置的PDCP的重复功能。在CA场景下，当为一个无线承载配置的PDCP的重复功能被去激活(或者称为，PDCP的重复被去激活)以后，该无线承载中的逻辑信道和载波之间的关联关系也将不再适用。目前，PDCP的重复只限于一个无线承载通过两个逻辑信道来传输在PDCP层被复制的数据包(也俗称，两条腿(leg)的重复传输)，可参考图3。假设PDCP的重复功能激活(或者称为，PDCP的重复被激活)时，来自逻辑信道1的数据只能在载波1或者载波2上传输，来自逻辑信道2的数据只能在载波3上传输。在某个时刻，PDCP的重复功能被去激活，则只剩下逻辑信道1还在工作，此时为了提高传输容量，逻辑信道1所配置的载波绑定关系不再适用，即允许逻辑信道1使用终端设备的所有可用(处于激活状态的)载波。从图3中可以看到，载波4是之前未与任一个逻辑信道建立关联关系的载波，那么如果允许逻辑信道1使用终端设备的所有处于激活状态的载波，则，如果载波4处于激活状态，那么逻辑信道1就可以使用载波4。这里所述的逻辑信道使用某个载波，就是指逻辑信道中传输的数据可以在这个载波上传输或者可以使用这个载波上的资源进行传输。
PDCP的PDU分为PDCP数据(data)PDU和PDCP控制(control)PDU，其中，PDCP data PDU用于承载数据，而PDCP control PDU用于承载一些控制信息，例如PDCP状态报告或鲁棒性头压缩(RObust header compression，ROHC)反馈等。PDCP重复传输机制主要是针对PDCP data PDU的，对于PDCP control PDU来说，不会被复制，即只会在一条传输路径上传输。
PDCP实体、RLC实体和MAC实体之间的路径，就是一条传输路径。可见，目前可能通过两条或更多条传输路径来传输重复的数据包。在一个无线承载对应的多条传输路径中，有一条会被配置为第一路径，其余的被配置为第二路径。例如，第一路径也可被称之为主路径，第二路径也可被称之为辅路径，但名称本身不构成对于特征的限定。例如主路径和辅路径所对应的标识是不同的。目前，主路径不会被去激活，而辅路径可以被去激活。其中，一条传输路径被去激活，主要是指去激活该传输路径的PDCP重复功能。
一般而言，PDCP control PDU只会在无线承载对应的主路径上传输，不会在无线承载对应的辅路径上传输。辅路径被去激活以后，该辅路径中传输的重复的PDCP data PDU会被丢弃。由于目前主路径不会被去激活，所以在主路径上传输的PDCP data PDU和PDCP control PDU受去激活的影响较小。
但是，一旦将来主路径能够被去激活，则主路径去激活后，PDCP control PDU将如何处理，没有解决方案。
鉴于此，提供本申请实施例的解决方案。在本申请实施例中，如果主路径被去激活，那么可以确定第一载波，以通过主路径在第一载波上继续发送控制信息。也就是说，即使主路径被去激活，控制信息也依然可以继续在主路径上传输，这就提供了一种合理有效地传输控制信息的方式，减少了控制信息丢失的概率。且控制信息一般来说较为重要，也使得接收端能够及时获取控制信息，从而进行相应的决策。另外，第一载波可以包括为终端设备配置的载波中的至少一个载波，使得第一载波的选择范围较为宽泛，有助于选择到更为合适或质量更好的载波作为第一载波，从而提高控制信息的发送成功率。
请参考图4，为本申请实施例的一种应用场景。图4中包括网络设备和终端设备，终端设备能够与网络设备通信。当然图4中的终端设备的数量只是举例，在实际应用中，网络设备可以为多个终端设备提供服务，多个终端设备中的全部终端设备或者部分终端设备都可以采用本申请实施例提供的方法调整逻辑信道与载波的关联关系。
请参见图5，为本申请实施例的另一种应用场景，图5所示的场景可理解为DC场景。在图5中包括两个网络设备以及一个终端设备，这两个网络设备分别为第一网络设备和第二网络设备，第一网络设备例如为终端设备的主网络设备，第二网络设备是终端设备的辅网络设备，或者，第一网络设备是终端设备的辅网络设备，第二网络设备是终端设备的主网络设备。这两个网络设备例如均为基站，那么主网络设备也就是主基站，辅网络设备也就是辅基站。其中，第一网络设备例如工作在演进的通用移动通信系统陆地无线接入(evolved UMTS terrestrial radio access，E-UTRA)系统中，第二网络设备例如工作在NR系统中，或者，第一网络设备例如工作在NR系统中，第二网络设备例如工作在E-UTRA系统中，或者，第一网络设备和第二网络设备例如都工作在NR系统中或E-UTRA系统中。其中，终端设备同时连接到这两个网络设备，终端设备与这两个网络设备均可以通信。
图4或图5中的网络设备例如为基站。其中，网络设备在不同的系统对应不同的设备，例如在4G系统中可以对应eNB，在5G系统中对应5G中的接入网设备，例如gNB。当然 本申请实施例所提供的技术方案也可以应用于未来的移动通信系统中，因此图4或图5中的网络设备也可以对应未来的移动通信系统中的网络设备。图4或图5以网络设备是基站为例，实际上参考前文的介绍，网络设备还可以是RSU等设备。另外，图4或图5中的终端设备以手机为例，实际上根据前文对于终端设备的介绍可知，本申请实施例的终端设备不限于手机。
下面结合附图介绍本申请实施例提供的技术方案。在本申请的各个实施例中，一条传输路径被激活，可以是指激活该传输路径的PDCP的重复功能。可以理解为，处于激活状态的传输路径能够传输复制的数据包。同理，一条传输路径被去激活，可以是指去激活该传输路径的PDCP的重复功能。可以理解为，处于去激活状态的传输路径不能传输复制的数据包。另外也可以对PDCP的重复功能进行去激活，去激活后可能会有多条传输路径同时被去激活。
本申请实施例提供第一种通信方法，请参见图6，为该方法的流程图。在下文的介绍过程中，以该方法应用于图4或图5所示的网络架构为例。
为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例。如果将本实施例应用在图4所示的网络架构，因此，下文中所述的网络设备可以是图4所示的网络架构中的网络设备，下文中所述的终端设备可以是图4所示的网络架构中的终端设备。或者，如果将本实施例应用在图5所示的网络架构，因此，下文中所述的网络设备可以是图5所示的网络架构中的第一网络设备或第二网络设备，下文中所述的终端设备可以是图5所示的网络架构中的终端设备。
S61、网络设备向终端设备发送第一信令，终端设备接收来自网络设备的第一信令。第一信令可以用于去激活第一无线承载对应的主路径。
例如，第一无线承载被配置了PDCP的重复功能。第一无线承载可以对应一个PDCP实体，该PDCP实体可以关联一个或多个RLC实体(和/或逻辑信道)，其中的每个RLC实体(和/或逻辑信道)，在本申请实施例中可以称为一条传输路径，或者称为一条腿，用于将多份相同的数据中的一份传输到MAC实体，该传输路径也就是第一无线承载对应的传输路径。第一无线承载可以对应一条或多条传输路径。一般情况下，无线承载对应一条传输路径，当配置了PDCP的重复功能的时候，无线承载可能对应多条传输路径，即PDCP中的数据可以通过多个RLC或者逻辑信道中的一个传输到MAC层。如果第一无线承载对应的传输路径的个数大于1，则第一无线承载对应的传输路径可以包括主路径和辅路径，例如第一无线承载对应的传输路径中有一条路径被配置为主路径，其余的均被配置为辅路径。可参考图7，为第一无线承载对应的传输路径的一种示意图。例如第一无线承载对应于3条传输路径，这3条传输路径中有一条传输路径被配置为主路径，另外的2条传输路径被配置为辅路径。
在本申请实施例中，规定控制信息通过主路径传输，辅路径不传输控制信息。控制信息例如可以是PDCP control PDU，或者，控制信息可以包括PDCP control PDU。其中，PDCP control PDU由PDCP实体递交给主路径对应的RLC实体或者逻辑信道以后，经过RLC实体的处理会变成RLC PDU，其中RLC PDU里面的载荷(payload)部分包含了PDCP control PDU。因此本申请实施例中对于所述控制信息的传输在经过了RLC实体以后可以认为是对控制信息所在的RLC PDU的传输。主路径和辅路径都可以传输复制的数据包，数据包例如为PDCP data PDU。
在主路径处于激活状态的情况下，主路径可以传输PDCP control PDU和PDCP data PDU。而终端设备在接收第一信令后，就可以确定主路径被去激活。可选的，终端设备在接收第一信令后，可以进行相应操作以去激活主路径，从而主路径被去激活。在主路径处于去激活状态的情况下，主路径不能传输复制的数据包，那么终端设备在接收第一信令后，可以丢弃在主路径上传输的复制的数据包(例如RLC实体中的复制的数据包)，即丢弃主路径传输的PDCP data PDU。而对于主路径所传输的PDCP control PDU，终端设备可以不必丢弃，而是通过主路径继续传输。这就提供了一种合理有效地传输控制信息的方式，降低了UE处理的复杂性同时可以减少控制信息丢失的概率。另外控制信息一般来说较为重要，也使得接收端能够及时获取控制信息，从而进行相应的决策。
S62、终端设备确定第一载波。第一载波包括为终端设备配置的多个载波中的至少一个。
一个无线承载被配置PDCP的重复功能后，该无线承载对应的逻辑信道与载波之间就可以具有关联关系，或者称为绑定关系。在CA场景下，当为一个无线承载配置的PDCP的重复功能被去激活以后，该无线承载对应的逻辑信道和载波之间的关联关系也可能不再适用。在DC场景下，PDCP重复传输的两条传输路径连接不同的网络设备，去激活其中的一条传输路径，可以不影响另一条传输路径的逻辑信道和载波之间的关联关系。而就被去激活的这一条传输路径来说，该传输路径的逻辑信道和载波之间的关联关系可能不再适用。如果主路径被去激活并且继续通过主路径传输控制信息，则需要决定控制信息可以在哪些载波上进行传输，从而在选择上行传输资源的时候可以知道控制信息可以在哪些载波的上行资源上进行传输。
在本申请实施例中，例如终端设备选择了第一载波作为主路径去激活后继续传输控制信息的载波。第一载波例如包括为终端设备配置的多个载波中的至少一个载波，也就是说，终端设备可以从为终端设备配置的多个载波中选择至少一个载波作为第一载波。终端设备要从为终端设备配置的载波中选择第一载波，也可以有不同的选择方式，下面举例介绍。
1、第一种选择方式。
终端设备可以将为终端设备配置的载波中任意的至少一个载波确定为第一载波，则第一载波就可以包括为终端设备配置的多个载波中的任意载波。为终端设备配置的载波，例如包括接收第一信令的载波(或，称为小区)，还包括其他的载波；或者说，可以包括与第一无线承载对应的传输路径的逻辑信道具有关联关系的载波，以及包括与第一无线承载对应的传输路径的逻辑信道不具有关联关系的载波。
为终端设备配置的载波可能较多，则终端设备选择第一载波的范围较为宽泛。例如，在传输控制信息的时候，终端设备可以任意选择为终端设备配置的载波中的至少一个载波为第一载波。具体的，在传输控制信息的时候，无论上行资源属于哪个载波，控制信息都可以在该上行资源上进行传输。
举例来说，假设第一无线承载对应三条传输路径：主路径，辅路径一和辅路径二。主路径对应的逻辑信道与载波一具有关联关系，辅路径一对应的逻辑信道与载波二具有关联关系，辅路径二对应的逻辑信道与载波三具有关联关系。而终端设备除了上述三个载波以外，还被配置了载波四。则当主路径去激活以后，主路径上的控制信息可以使用上述四个载波中的任意一个载波上的资源进行传输。
在第一种选择方式下，主路径的逻辑信道与载波之间的关联关系不再适用。例如，PDCP  control PDU由PDCP实体递交给主路径的RLC实体处理以后(加上RLC头以后变成RLC PDU)，在组建MAC PDU时，不受RRC配置在该逻辑信道上的载波绑定关系(即，逻辑信道与载波之间的关联关系)的限制。其中，载波绑定关系可以用允许服务小区(allowedServingCells)参数表示，每个逻辑信道的配置中都可以包含该参数，而该参数对应的载波或者小区就是该逻辑信道中的数据包可以传输的载波或者小区。而在第一种选择方式下，在逻辑信道优先级(logical channel prioritization，LCP)过程中或者组建MAC PDU时，该逻辑信道中的数据可以不再受allowedServingCells参数的限制。
由于PDCP control PDU不通过重复传输来提高可靠性，所以不用像PDCP data PDU一样需要通过载波绑定关系来防止多个相同的PDCP control PDU在同一载波上传输。在主路径被去激活以后，主路径只用于传输PDCP control PDU，通过不再限制载波绑定关系的方式，可以使得PDCP control PDU可以在为终端设备配置的任意载波上传输，使得传输更加灵活，同时可以在负载较高时提高系统的传输容量。
2、第二种选择方式。
终端设备可以将与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的载波中的任意的至少一个载波确定为第一载波，则第一载波就可以包括与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的载波中的任意载波，或者说，第一载波与第一无线承载对应的传输路径包括的逻辑信道具有关联关系。这里所述的第一无线承载对应的传输路径，可以包括第一无线承载对应的全部传输路径或部分传输路径。如果所述的第一无线承载对应的传输路径包括第一无线承载对应的部分传输路径，那么这部分传输路径中可以包括主路径，也可以不包括主路径。
例如，在传输控制信息的时候，终端设备可以任意选择与第一无线承载对应的传输路径所对应的逻辑信道具有关联关系至少一个载波为第一载波。具体的，在传输控制信息的时候，当上行资源属于与第一无线承载对应的传输路径所对应的逻辑信道具有关联关系的载波时，则控制信息可以在该上行资源上进行传输。否则，控制信息不可以在第一载波之外的上行资源上进行传输。
举例来说，假设第一无线承载对应三条传输路径：主路径，辅路径一和辅路径二。主路径对应的逻辑信道与载波一具有关联关系，辅路径一对应的逻辑信道与载波二具有关联关系，辅路径二对应的逻辑信道与载波三具有关联关系。而终端设备除了上述三个载波以外，还被配置了载波四。则当主路径去激活以后，主路径上的控制信息可以使用上述载波一、载波二和载波三中的任意一个载波上的资源进行传输，但是不能使用载波四的上行资源进行传输。
在第二种选择方式下，主路径的逻辑信道与载波之间的关联关系也不再适用。例如，PDCP control PDU由PDCP实体递交给主路径的RLC实体处理以后(加上RLC头以后变成RLC PDU)，在组建MAC PDU时，不受RRC配置在该逻辑信道上的载波绑定关系(即，逻辑信道与载波之间的关联关系)的限制。
由于PDCP control PDU不通过重复传输来提高可靠性，所以不用像PDCP data PDU一样需要通过载波绑定关系来防止多个相同的PDCP control PDU在同一载波上传输。在主路径被去激活以后，主路径只用于传输PDCP control PDU，通过不再限制载波绑定关系的方式，可以使得PDCP control PDU的传输更加灵活，同时可以在负载较高时提高系统的传输容量。而且终端设备可以在与第一无线承载对应的传输路径对应的逻辑信道具有关联关系 的载波中选择第一载波，使得所选择的载波依然是与第一无线承载对应的传输路径对应的逻辑信道具有关联关系的载波，更利于不脱离第一无线承载的传输路径的限制。
3、第三种选择方式。
终端设备可以将与主路径包括的逻辑信道具有关联关系的载波中的任意的至少一个载波确定为第一载波，则第一载波就可以包括与主路径包括的逻辑信道具有关联关系的载波中的至少一个载波，或者说，第一载波与主路径包括的逻辑信道具有关联关系。
例如，在传输控制信息的时候，终端设备只可以选择与主路径所对应的逻辑信道具有关联关系至少一个载波为第一载波。具体的，在传输控制信息的时候，当上行资源属于与主路径所对应的逻辑信道具有关联关系的载波时，则控制信息可以在该上行资源上进行传输。否则，控制信息不可以在第一载波之外的上行资源上进行传输。
举例来说，假设第一无线承载对应三条传输路径：主路径，辅路径一和辅路径二。主路径对应的逻辑信道与载波一具有关联关系，辅路径一对应的逻辑信道与载波二具有关联关系，辅路径二对应的逻辑信道与载波三具有关联关系。而终端设备除了上述三个载波以外，还被配置了载波四。则当主路径去激活以后，主路径上的控制信息可以使用上述载波一上的资源进行传输，但是不能使用另外三个载波上的上行资源进行传输。
在第三种选择方式下，主路径的逻辑信道与载波之间的关联关系可以继续适用。即，PDCP control PDU由PDCP实体递交给主路径的RLC实体处理以后(加上RLC头以后变成RLC PDU)，在组建MAC PDU时，受RRC配置在该逻辑信道上的载波绑定关系的限制，该RLC PDU只能在与主路径对应的逻辑信道具有关联关系的载波或者小区的上行授权(UL grant)上进行传输。
这里所述的，主路径的逻辑信道与载波之间的关联关系可以继续适用是指，对于控制信息来说，主路径的逻辑信道与载波之间的关联关系可以继续适用，而对于数据PDU来说，主路径不再继续用于数据PDU的传输。
在主路径被去激活后，主路径只用于传输PDCP control PDU，继续限制载波绑定关系可以使得终端设备不需要对主路径做额外处理，与去激活之前的传输状态一样即可，减少了终端设备的处理复杂度。
另外，如上的三种方式只是示例，本申请实施例并不限制终端设备选择第一载波的方式(或者说，不限制终端设备选择第一载波的范围)。至于终端设备究竟使用如上的何种方式(或者说，何种范围)选择第一载波，可以由终端设备自行确定，或者由网络设备配置，或者也可以通过协议规定等。如果终端设备究竟使用如上的何种方式选择第一载波，是由终端设备自行确定，则终端设备可以将所确定的选择方式告知网络设备，从而网络设备可以为终端设备分配上行资源。
例如，终端设备使用哪种方式选择第一载波，可以由网络设备配置。那么一种配置方式是，第一信令还可以指示，在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息适用或不适用。或者，网络设备也可以向终端设备发送第二信令，第二信令可以指示在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息适用或不适用，终端设备接收来自网络设备的第二信令后，就可以确定主路径对应的逻辑信道与载波之间的关联关系对于控制信息适用或不适用。如果网络设备向终端设备发送第二信令，那么网络设备可以同时发送第一信令和第二信令，或者可以先发送第一信令后发送第二信令，或者可以先发送第二信令后发送第一信令。
如果网络设备指示在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息适用，则终端设备可以采用如上所述的第三种选择方式来选择第一载波；或者，如果网络设备指示在主路径被去激活后，主路径对应的逻辑信道与载波之间的关联关系对于控制信息不适用，则终端设备可以采用如上所述的第一种选择方式或第二种选择方式来选择第一载波。
或者，网络设备所发送的第一信令或第二信令也可以指示具体的选择方式，例如可以指示第一种选择方式、第二种选择方式或第三种选择方式，则终端设备按照网络设备所指示的选择方式选择第一载波即可。
本申请实施例中，在主路径被去激活后，主路径只用于传输PDCP control PDU，在传输PDCP control PDU时是否限制载波绑定关系，网络设备可以动态地进行指示，例如网络设备可以根据传输状态或者链路条件或者负载状态等进行更为灵活的控制。
本申请实施例中，在规定了PDCP control PDU只允许在第一无线承载的主路径上传输的情况下，通过限定主路径去激活以后，主路径上的载波绑定关系是否对PDCP control PDU适用来规定终端设备的传输行为，可以使得终端设备可以明确在这种场景下如何传输PDCP control PDU，避免终端设备行为的不确定性。
需要注意的是，载波也有激活状态和去激活状态，在本申请实施例的选择过程中，终端设备只选择处于激活状态的载波。
其中，S62是可选的步骤。
S63、终端设备通过主路径在第一载波上发送第一控制信息，网络设备接收来自终端设备的第一控制信息。第一载波是为终端设备配置的多个载波中的至少一个。
终端设备可以通过主路径在第一载波上的上行资源上继续发送控制信息，例如终端设备发送的是第一控制信息，则网络设备可以根据相应的上行资源接收来自终端设备的控制信息。
在如上的介绍过程中，是以终端设备需要传输的是控制信息为例，而对于主路径被去激活后，主路径上需要继续传输的PDCP data PDU(例如需要重传或者未传完的数据包等)，也可以按照如上类似的方式处理，只需将图6所示的实施例中的“控制信息”替换为“数据包(或PDCP data PDU)”即可。另外，如上介绍的只是主路径，而对于辅路径来说，如果辅路径被去激活，辅路径上需要继续传输的PDCP data PDU(例如需要重传或者未传完的数据包等)，也都可以按照如上类似的方式处理。从而使得本申请实施例提供的方法不仅适用于PDCP control PDU，也可以适用于PDCP data PDU，应用范围更为广泛。
作为一种可选的实施方式，当主路径处于激活状态时，在通过主路径发送PDCP control PDU时，主路径对应的逻辑信道与载波的之间关联关系不适用；或，当主路径处于激活状态时，在通过主路径发送PDCP data PDU时，主路径对应的逻辑信道与载波的之间关联关系适用；或，当主路径处于激活状态时，在通过主路径发送PDCP control PDU时，主路径对应的逻辑信道与载波的之间关联关系不适用，以及，当主路径处于激活状态时，在通过主路径发送PDCP data PDU时，主路径对应的逻辑信道与载波的之间关联关系适用。
例如，当主路径处于激活状态时，PDCP control PDU在主路径上传输不适用载波绑定关系，例如终端设备可以按照如前介绍的第一种选择方式或第二种选择方式来选择用于传输PDCP control PDU的载波，而PDCP data PDU在主路径上的传输适用载波绑定关系。这样做的理由是，PDCP control PDU不通过重复传输来提高可靠性，不限定传输载波会使得 传输更灵活，而且可以提高系统传输容量。
具体的，PDCP实体向RLC实体递交PDU时，需要告知RLC实体，所述的PDU的类型是PDCP data PDU或者PDCP control PDU，或者，RLC实体也可以通过读取所述的PDU头(header)获知所述的PDU类型。RLC实体可以将所述的PDU的类型告知MAC实体。MAC实体在收到UL grant以后，在进行LCP处理选择逻辑信道时，即使某个逻辑信道的载波绑定关系限制该逻辑信道的PDCP data PDU不能在所述的UL grant传输，但只要该逻辑信道存在待传输的PDCP control PDU，便可以将该逻辑信道列为候选逻辑信道，并为其分配上行资源。在组建MAC PDU时，使得包含PDCP control PDU的PDU有机会被传输。可选的，可以优先传输PDCP control PDU，因为相对于数据来说，PDCP control PDU携带的控制信息可能更为重要。
通过本申请实施例所提供的方案，即使主路径被去激活，主路径也可以继续传输控制信息，减少了控制信息丢失的概率。且控制信息一般来说较为重要，也使得网络设备能够及时获取控制信息，从而进行相应的决策。另外，第一载波可以包括为终端设备配置的载波中的至少一个载波，使得第一载波的选择范围较为宽泛，有助于选择到更为合适或质量更好的载波作为第一载波，从而提高控制信息的发送成功率。
在图6所示的实施例中，控制信息只在主路径上传输。下面再提供另外的实施例，在下面的实施例中，不限制控制信息的传输路径，例如，控制信息既可以在主路径上传输，也可以在辅路径上传输。
本申请实施例提供第二种通信方法，请参见图8，为该方法的流程图。在下文的介绍过程中，以该方法应用于图4或图5所示的网络架构为例。
为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例。如果将本实施例应用在图4所示的网络架构，因此，下文中所述的网络设备可以是图4所示的网络架构中的网络设备，下文中所述的终端设备可以是图4所示的网络架构中的终端设备。或者，如果将本实施例应用在图5所示的网络架构，因此，下文中所述的网络设备可以是图5所示的网络架构中的第一网络设备或第二网络设备，下文中所述的终端设备可以是图5所示的网络架构中的终端设备。
S81、网络设备向终端设备发送第一信令，终端设备接收来自网络设备的第一信令。第一信令可以指示控制信息的至少一条传输路径，或者说，第一信令可以为控制信息指示至少一条传输路径。
可选的，在S81之前，例如还可以包括S83，网络设备确定所述的至少一条传输路径。
例如，第一信令可以是用于为第一无线承载配置PDCP的重复功能的信令。也就是说，第一信令还用于为第一无线承载配置PDCP的重复功能。例如，配置了PDCP重复功能的第一无线承载中的数据包(例如PDCP data PDU)在PDCP层被复制成至少两份，分别通过至少两条传输路径传输。这里所述的至少两条传输路径，可以包括第一信令所指示的至少一条传输路径。
或者，第一信令可以是用于激活第一无线承载对应的主路径或者辅路径的信令。这里所述的激活一条传输路径，主要是指激活该传输路径的PDCP的重复功能。例如，主路径在被激活后，能够传输经过复制的数据包。
或者，第一信令也可以是用于去激活主路径或者辅路径的信令。这里所述的去激活一条传输路径，主要是指去激活该传输路径的PDCP的重复功能。例如，主路径在被去激活 后，不能传输经过复制的数据包。
或者，第一信令也可以是本申请实施例新增的，专用于指示至少一条传输路径的信令等。对于第一信令的实现方式不做限制。
第一信令所指示的至少一条传输路径可以包括主路径，或包括辅路径，或包括主路径和辅路径。例如主路径和辅路径都是第一无线承载对应的传输路径。第一无线承载可以对应一个主路径，还可以对应一个或多个辅路径。如果第一信令所指示的至少一条传输路径包括第一无线承载对应的辅路径，那么所述的至少一条传输路径可以包括第一无线承载对应的全部辅路径或部分辅路径。关于第一无线承载对应的传输路径(例如主路径或辅路径等)等内容，可参考图6所示的实施例中的S61的相关介绍。
可能有一种情况，主路径的传输优先级可以通过协议规定，例如协议可以规定，主路径的传输优先级最高，或者说协议规定，主路径优先传输。如果是这种情况，则第一信令指示的至少一条传输路径就可以不包括主路径而只包括辅路径，因为主路径的传输优先级已经无需指示。需要说明的是，本申请实施例中，传输优先级是指传输控制信息的时候，选择传输路径的优先级或者先后顺序，传输优先级高的路径会被优先选择用来传输控制信息。可选的，只有处于激活状态的路径才会被选择用于传输控制信息。事先规定主路径的传输优先级最高，可以尽量使得控制信息能够在主路径传输，有利于与现有的方式兼容。
而如果主路径的传输优先级并未通过协议等方式规定，而是也由网络设备来指示，那么第一信令指示的至少一条传输路径就可以包括主路径而不包括辅路径，或者包括辅路径而不包括主路径，或者既包括主路径也包括辅路径。无需事先规定主路径的传输优先级，各个传输路径的传输优先级都可以由网络设备配置，例如网络设备可以根据传输路径的信道质量或负载情况等进行灵活配置，能够提高传输质量。
作为一种可选的实施方式，当至少一条传输路径的个数大于1时，第一信令还可以指示至少一条传输路径的传输优先级。例如第一信令指示了主路径、第一辅路径和第二辅路径，且第一信令可以指示这三条传输路径的传输优先级为主路径的传输优先级>第一辅路径的传输优先级>第二辅路径的传输优先级。或者说，第一信令指示了主路径、第一辅路径和第二辅路径，且第一信令可以指示，主路径的传输优先级为最高，第一辅路径的传输优先级为次高，第二辅路径的传输优先级为最低，等等，以此类推。
作为另一种可选的实施方式，至少一条传输路径的个数也可以等于1，在至少一条传输路径的个数为1的情况下，第一信令也就无需再指示该传输路径的传输优先级。例如第一信令为用于去激活主路径的信令，那么在去激活主路径的同时，网络设备也可以指示一条传输路径，终端设备通过该传输路径传输控制信息即可，无需再做额外的选择。
另外，还有一种可选的实施方式，即，S81所述的第一信令指示控制信息的至少一条传输路径，具体可以是指，第一信令指示至少一条传输路径的传输优先级。例如，能够用于传输控制信息的传输路径(即至少一条传输路径)的个数大于1时，第一信令可以指示这至少一条传输路径的传输优先级。例如，第一信令可以指示主路径的传输优先级>第一辅路径的传输优先级>第二辅路径的传输优先级。在这种实施方式下，第一信令只是指示了传输路径的优先级，但可能并未指示具体的传输路径。
S82、终端设备通过主路径或第一信令指示的至少一条传输路径发送第一控制信息，网络设备接收来自终端设备的第一控制信息。
如果主路径的传输优先级并未通过协议等方式规定，而是也由网络设备来指示，那么 终端设备就可以通过第一信令指示的至少一条传输路径发送控制信息。或者，主路径的传输优先级可以通过协议规定，例如协议可以规定，主路径的传输优先级最高，但当前主路径处于去激活状态，或者说主路径被去激活，那么终端设备也可以通过第一信令指示的至少一条传输路径发送控制信息。控制信息例如可以包括在PDCP control PDU中。例如终端设备发送的是第一控制信息。
如果终端设备确定通过所述的至少一条传输路径发送第一控制信息，且至少一条传输路径的个数为1，则终端设备可以通过该传输路径发送第一控制信息。
或者，如果终端设备确定通过所述的至少一条传输路径发送第一控制信息，且至少一条传输路径的个数大于1，那么终端设备可以先从至少一条传输路径中选择一条传输路径，再通过该传输路径发送第一控制信息。例如终端设备从至少一条传输路径中选择了第一传输路径来发送第一控制信息。第一传输路径例如为所述的至少一条传输路径中的传输优先级最高的传输路径，也就是说，终端设备从至少一条传输路径中选择传输优先级最高的传输路径来发送第一控制信息。例如，终端设备可以根据第一信令确定至少一条传输路径的传输优先级。而网络设备也可以按照同样的方式确定第一传输路径，从而能够通过第一传输路径正确接收来自终端设备的第一控制信息。选择传输优先级最高的传输路径来发送第一控制信息，可以提高第一控制信息的发送成功率。
而如果主路径的传输优先级可以通过协议规定，例如协议可以规定，主路径的传输优先级最高。那么，在主路径处于激活状态的情况下，终端设备就可以不根据第一信令指示的至少一条传输路径来发送第一控制信息，而是通过主路径发送第一控制信息即可。而网络设备也可以确定主路径的传输优先级最高且主路径处于激活状态，从而网络设备能够通过主路径正确接收来自终端设备的第一控制信息。通过这种方式，可以尽量选择主路径来发送控制信息，主路径一般来说信道质量较好，这样可以提高控制信息的发送成功率。
或者，如果第一信令指示控制信息的至少一条传输路径，具体可以是指，第一信令指示至少一条传输路径的传输优先级，那么终端设备可以根据所述的至少一条传输路径中的全部或部分传输路径的当前的状态，以及传输路径的传输优先级，确定应该选择哪条传输路径发送控制信息。例如终端设备可以按照传输路径的传输优先级从高到低的顺序，选择处于激活状态的传输路径来发送控制信息。
例如，第一信令指示的至少一条传输路径的优先级为，主路径的传输优先级>第一辅路径的传输优先级>第二辅路径的传输优先级。终端设备在接收第一信令后，如果确定主路径的状态为激活状态，则终端设备可以通过主路径发送第一控制信息，无需再确定第一辅路径和第二辅路径的状态。而如果终端设备在接收第一信令后，确定主路径的状态为去激活状态，则终端设备可以再确定第一辅路径的状态，以此类推。这里以主路径处于激活状态，终端设备通过主路径发送第一控制信息为例。而在过了一段时间之后，主路径被去激活，终端设备在确定主路径被去激活后，可以再确定第一辅路径的状态，如果第一辅路径的状态为激活状态，则终端设备可以选择第一辅路径发送控制信息，例如发送的是第二控制信息，而如果第一辅路径的状态为去激活状态，则终端设备可以再确定第二辅路径的状态，以此类推。例如第一辅路径的状态为去激活状态，第二辅路径的状态为激活状态，终端设备选择通过第二辅路径发送第二控制信息，网络设备接收来自终端设备的第二辅路径的第二控制信息，对此可参考S83。在过了一段时间之后，例如第一辅路径被激活，终端设备在确定第一辅路径被激活后，可以继续通过第二辅路径发送控制信息，例如为第三 控制信息，或者，也可以改为通过第一辅路径发送第三控制信息，图8以终端设备改为通过第一辅路径发送第三控制信息为例，对此可参考S84。由于第一辅路径比第二辅路径的传输优先级高，通过第一辅路径发送控制信息，有助于提高传输质量。另外一种情况是，正在使用传输优先级低的传输路径发送控制信息，当有更高优先级的传输路径被激活的时候，终端设备可以选择更高优先级的传输路径进行控制信息的传输。
也就是说，终端设备在根据第一信令确定至少一条传输路径的优先级后，可以根据传输路径的状态来确定用于发送控制信息的传输路径。而在有传输路径的状态发生改变(例如被激活或者去激活)时，终端设备也能及时调整控制信息的传输路径，从而既可以尽量选择传输优先级较高的传输路径来发送控制信息，也可以在传输优先级较高的传输路径被去激活时及时更换传输路径，提高控制信息的发送成功率。
另外还可以考虑一种情况，在用于传输控制信息的传输路径(例如主路径，或者是第一信令所指示的一条传输路径)被去激活时，可能该传输路径中还有正在传输的控制信息，而终端设备在下一次传输控制信息时可以根据第一信令的指示改变传输路径，但对于此时正在传输的控制信息，可能有被丢弃的风险。
那么在本申请实施例中，在用于传输控制信息的传输路径被去激活时，如果该传输路径中还有正在传输的控制信息，则可以继续通过该传输路径传输这些控制信息，对于还未传输的控制信息，终端设备可以根据第一信令的指示选择另外的传输路径来传输。或者，在用于传输控制信息的传输路径被去激活时，如果该传输路径中还有正在传输的控制信息，终端设备可以正常丢弃。之后，终端设备可以根据第一信令的指示选择另外的传输路径，并通过所选择的传输路径重新传输这些控制信息。无论采用如上的哪种方式，都可以减小控制信息丢失的概率，提高控制信息的传输成功率。
在本申请实施例中，网络设备可以动态指示传输路径，例如网络设备可以根据传输状态或者链路条件或者负载状态等因素进行更为灵活的控制。终端设备可以根据网络设备的指示或者通过一定的规则判断，在主路径去激活以后，PDCP control PDU在哪个传输路径上进行传输，明确了终端设备对于PDCP control PDU的传输行为。
在图8所示的实施例中，不限制控制信息的传输路径，例如，控制信息既可以在主路径上传输，也可以在辅路径上传输。下面再提供一个实施例，在该实施例中，控制信息也是既可以在主路径上传输，也可以在辅路径上传输。与图8所示的实施例不同的是，下面的实施例中，控制信息究竟在哪个传输路径上传输，可以由终端设备自行确定。
本申请实施例提供第三种通信方法，请参见图9，为该方法的流程图。在下文的介绍过程中，以该方法应用于图4或图5所示的网络架构为例。
为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例。如果将本实施例应用在图4所示的网络架构，因此，下文中所述的网络设备可以是图4所示的网络架构中的网络设备，下文中所述的终端设备可以是图4所示的网络架构中的终端设备。或者，如果将本实施例应用在图5所示的网络架构，因此，下文中所述的网络设备可以是图5所示的网络架构中的第一网络设备或第二网络设备，下文中所述的终端设备可以是图5所示的网络架构中的终端设备。
S91、终端设备通过第一传输路径发送第一控制信息，网络设备接收来自终端设备的第一控制信息。
第一无线承载可以对应一条或多条传输路径，第一传输路径是第一无线承载对应的其 中一条传输路径。例如第一传输路径可以是第一无线承载对应的传输路径中的主路径，或者也可以是第一无线承载对应的传输路径中的辅路径。关于第一无线承载对应的传输路径等内容，可参考图6所示的实施例中的S61的相关介绍。
S92、网络设备向终端设备发送第一信令，终端设备接收来自网络设备的第一信令。第一信令用于去激活第一传输路径。
可选的，终端设备在接收第一信令后，可以进行相应的操作以去激活第一传输路径，从而第一传输路径被去激活。
S93、终端设备通过第二传输路径发送第二控制信息，网络设备接收来自终端设备的第二控制信息。第二传输路径是第一无线承载对应的其中一条传输路径，第二传输路径和第一传输路径不是同一条传输路径。
在本申请实施例中，如果传输控制信息的第一传输路径被去激活，终端设备不再通过第一传输路径发送控制信息。在这种情况下，终端设备还可以通过第一无线承载的另外的传输路径继续传输控制信息，从而减小了控制信息丢失的概率。且控制信息一般来说较为重要，也使得网络设备能够及时获取控制信息，从而进行相应的决策。
作为一种可选的实施方式，与第二传输路径对应的逻辑信道具有关联关系的至少一个载波中可以包含主载波。或者说，终端设备可以选择与主载波具有关联关系的逻辑信道对应的传输路径作为第二传输路径。这里的主载波，可以是指第一传输路径对应的主载波。另外要实现这种方式的前提是，第一传输路径对应的主载波处于激活状态。
其中，第一无线承载可以对应一个PDCP实体，该PDCP实体可以关联一个或多个RLC实体(或者逻辑信道)，其中的每个RLC实体(或者逻辑信道)可以关联一个MAC实体。例如对于DC场景，一个PDCP实体关联的RLC实体可以关联两个MAC实体，这两个MAC实体分别位于主网络设备和辅网络设备中。其中，每个MAC实体可以关联一个或多个载波，对于每个MAC实体来说，该MAC实体所关联的一个或多个载波中的一个载波可以被配置为主载波(SpCell)，该MAC实体所关联的除主载波之外的载波可以被配置为辅载波(SCell)。
例如图7中，3个RLC实体关联了一个MAC实体，该MAC实体关联了3个载波，例如这3个载波中，位置位于中间的载波被配置为该MAC实体的主载波，其余的2个载波被配置为该MAC实体的辅载波。
对于第一传输路径来说，无论第一传输路径是主路径还是辅路径，在处于激活状态时，第一传输路径包括的逻辑信道可以与相应的载波具有关联关系。当第一传输路径处于激活状态时，PDCP control PDU在第一传输路径上进行传输；当第一传输路径被去激活后，其他的传输路径的逻辑信道和载波的关联关系可能会发生变化，例如，当第一传输路径被去激活后，第一传输路径包括的逻辑信道与载波之间的关联关系可能一并被去激活，从而原本与第一传输路径包括的逻辑信道具有关联关系的载波，可能会改为与其他传输路径包括的逻辑信道建立关联关系。也就是说，第一传输路径包括的逻辑信道所对应的主载波或辅载波，都可能改为与其他的传输路径包括的逻辑信道建立关联关系。
由于PDCP control PDU包含控制信息，对可靠性有一定要求，而在所有载波中，一般来说主载波的信道质量相比辅载波的信道质量要好，因此在第一传输路径被去激活后，终端设备可以确定第一传输路径的主载波(即，与第一传输路径包括的逻辑信道具有关联关系的载波中的主载波)与哪个传输路径的逻辑信道建立了关联关系，例如终端设备确定第 一传输路径的主载波与第二传输路径的逻辑信道建立了关联关系，则终端设备就可以通过第二传输路径继续发送控制信息。其中，如果是DC场景，则第一传输路径可以是对应于主网络设备的传输路径，也可以是对应于辅网络设备的传输路径，或者说，第一传输路径包括的逻辑信道所关联的主载波，可以是对应于主网络设备的主载波，也可以是对应于辅网络设备的主载波。在这种方式下，终端设备只需确定第一传输路径对应的主载波所新关联的逻辑信道对应的传输路径，就可以选择到信道质量较好的传输路径，可以提高控制信息的传输质量，且方式较为简单。
或者，作为另一种可选的实施方式，与第二传输路径包括的逻辑信道具有关联关系的至少一个载波中，可以包含与第一无线承载对应的传输路径包括的逻辑信道具有关联关系的载波中的信道质量最好的载波。或者说，终端设备可以选择与第一无线承载对应的全部或部分传输路径包括的逻辑信道具有关联关系的载波中的信道质量最好的载波，并确定与该信道质量最好的载波具有关联关系的逻辑信道对应的传输路径作为第二传输路径。
例如，终端设备可以对与第一无线承载对应的全部或部分传输路径包括的逻辑信道具有关联关系的载波进行测量，确定各载波的信道质量，从而终端设备可以从中确定信道质量最好的载波。终端设备可以确定该信道质量最好的载波关联的逻辑信道所对应的传输路径为第二传输路径，则终端设备就可以通过第二传输路径发送控制信息。在这种方式下，终端设备可以确定信道质量最好的载波，并通过该载波关联的逻辑信道所对应的传输路径传输控制信息，可以提高控制信息的传输可靠性。且终端设备可以通过测量确定载波的信道质量，可以使得所确定的信道质量更为准确，可选的，终端设备将测量结果发送给网络设备。另一种确定载波信道质量的方式是，网络设备对各载波进行测量，确定各载波的信道质量，然后将测量结果发送给终端设备，供终端设备确定第二传输路径来发送控制信息。其中对终端设备或者网络设备对载波进行测量具体可以测量在载波上传输的无线信号(例如参考信号)，通过参考信号的质量(比如参考信号接收功率(reference signal receiving power，RSRP)/参考信号接收质量(reference signal receiving quality，RSRQ)/信号与干扰加噪声比(signal to interference plus noise ratio，SINR)/接收信号强度指示(received signal strength indication，RSRI)等)来确定对应载波的信道质量。
终端设备究竟通过如上的哪种方式来选择第二传输路径，或者说选择载波，可以由网络设备配置，或者可以通过协议规定，或者也可以由终端设备自行确定等。
例如，网络设备可以按照与终端设备相同的方式来确定载波(其中，如果终端设备选择的载波是信道质量最好的载波，则终端设备例如可以将对载波的信道进行测量的测量结果发送给网络设备，从而网络设备可以确定信道质量最好的载波；或者终端设备可以将信道质量最好的载波告知网络设备，无需向网络设备发送信道质量的测量结果)，则网络设备所确定的控制信息的传输路径和终端设备所确定的传输路径是同一传输路径，即，都是第二传输路径。从而网络设备就可以按照正确的传输路径接收来自终端设备的控制信息。
另外还可以考虑一种情况，在第一传输路径被去激活时，可能该传输路径中还有正在传输的控制信息，而终端设备在下一次传输控制信息时可以通过第二传输路径来传输，但对于此时正在第一传输路径中传输的控制信息，可能有被丢弃的风险。
那么在本申请实施例中，在第一传输路径被去激活时，如果第一传输路径中还有正在传输的控制信息，则可以继续通过第一传输路径传输这些控制信息，对于还未传输的控制信息，终端设备可以通过第二传输路径来传输。或者，在第一传输路径被去激活时，如果 第一传输路径中还有正在传输的控制信息，终端设备可以正常丢弃。之后，终端设备可以通过第二传输路径重新传输这些控制信息。无论采用如上的哪种方式，都可以减小控制信息丢失的概率，提高控制信息的传输成功率。
在本申请实施例中，如果第一传输路径被去激活，终端设备可以尽量选择信道质量较好的传输路径来发送PDCP control PDU，从而保证PDCP control PDU传输的可靠性。且本申请实施例中，终端设备可以通过一定的规则判断，在第一传输路径去激活以后，PDCP control PDU在哪个传输路径上进行传输，明确了终端设备对于PDCP control PDU的传输行为。
在图6所示的实施例、图8所示的实施例或图9所示的实施例中，都是以上行过程为例，即，都是以控制信息是终端设备发送给网络设备为例。而网络设备可能也需要向终端设备发送控制信息，或者发送数据，那么发送方式也可以类似于如上的各个实施例的介绍。即，图6所示的实施例、图8所示的实施例或图9所示的实施例虽然只是以上行控制信息为例，但这些实施例所提供的方法对于发送下行控制信息的过程也同样适用。
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。
图10为本申请实施例提供的通信装置1000的示意性框图。示例性地，通信装置1000例如为终端设备1000。
终端设备1000包括发送模块1020和接收模块1030。可选的，还可以包括处理模块1010。示例性地，终端设备1000可以是终端设备，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当终端设备1000是终端设备时，发送模块1020可以是发送器，接收模块1030可以是接收器，发送器或接收器可以包括天线和射频电路等，处理模块1010可以是处理器，处理器中可以包括一个或多个中央处理单元(central processing unit，CPU)。当终端设备1000是具有上述终端设备功能的部件时，发送模块1020和接收模块1030可以是射频单元，处理模块1010可以是处理器，例如基带处理器。当终端设备1000是芯片系统时，发送模块1020和接收模块1030可以是芯片(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块1010可以用于执行图6所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如S62，和/或用于支持本文所描述的技术的其它过程。发送模块1020可以用于执行图6所示的实施例中由终端设备所执行的全部发送操作，例如S63，和/或用于支持本文所描述的技术的其它过程。接收模块1030可以用于执行图5所示的实施例中由终端设备所执行的全部接收操作，例如S61，和/或用于支持本文所描述的技术的其它过程。
另外，发送模块1020和接收模块1030可以是一个功能模块，该功能模块既能完成发送操作也能完成接收操作，该功能模块可以称为收发模块，例如收发模块可以用于执行图6所示的实施例中由终端设备所执行的全部发送操作和接收操作，例如，在执行发送操作时，可以认为收发模块是发送模块，而在执行接收操作时，可以认为收发模块是接收模块；或者，发送模块1020和接收模块1030也可以是两个功能模块，收发模块可以视为这两个功能模块的统称，这两个功能模块分别为发送模块1020和接收模块1030，发送模块1020用于完成发送操作，例如发送模块1020可以用于执行图6所示的实施例中由终端设备所 执行的全部发送操作，接收模块1030用于完成接收操作，例如接收模块1030可以用于执行图6所示的实施例中由终端设备所执行的全部接收操作。
其中，接收模块1030，用于接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，其中，所述第一无线承载配置了PDCP的重复功能；
发送模块1020，用于通过所述主路径在第一载波上发送第一控制信息，所述第一载波是为终端设备配置的多个载波中的至少一个。
作为一种可选的实施方式，处理模块1010，用于确定所述第一载波。
作为一种可选的实施方式，
所述第一载波与所述主路径包括的逻辑信道具有关联关系；或，
所述第一载波与所述第一无线承载对应的传输路径包括的逻辑信道具有关联关系；或，
所述第一载波是为终端设备配置的任意载波。
作为一种可选的实施方式，所述第一信令还用于指示，在所述主路径被去激活后，所述主路径对应的逻辑信道与载波之间的关联关系对于所述第一控制信息的传输适用或不适用。
作为一种可选的实施方式，所述第一控制信息包括PDCP控制PDU。
作为一种可选的实施方式，
当所述主路径处于激活状态时，在通过所述主路径发送PDCP控制PDU时，所述主路径对应的逻辑信道与载波的之间关联关系不适用；和/或，
当所述主路径处于激活状态时，在通过所述主路径发送PDCP数据PDU时，所述主路径对应的逻辑信道与载波的之间关联关系适用。
图11为本申请实施例提供的通信装置1100的示意性框图。示例性地，通信装置1100例如为终端设备1100。
终端设备1100包括发送模块1120和接收模块1130。可选的，还可以包括处理模块1110。示例性地，终端设备1100可以是终端设备，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当终端设备1100是终端设备时，发送模块1120可以是发送器，接收模块1130可以是接收器，发送器或接收器可以包括天线和射频电路等，处理模块1110可以是处理器，处理器中可以包括一个或多个CPU。当终端设备1100是具有上述终端设备功能的部件时，发送模块1120和接收模块1130可以是射频单元，处理模块1110可以是处理器，例如基带处理器。当终端设备1100是芯片系统时，发送模块1120和接收模块1130可以是芯片(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块1110可以用于执行图8所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如确定用于传输第一控制信息的传输路径等操作，和/或用于支持本文所描述的技术的其它过程。发送模块1120可以用于执行图8所示的实施例中由终端设备所执行的全部发送操作，例如S82～S84，和/或用于支持本文所描述的技术的其它过程。接收模块1130可以用于执行图8所示的实施例中由终端设备所执行的全部接收操作，例如S81，和/或用于支持本文所描述的技术的其它过程。
另外，发送模块1120和接收模块1130可以是一个功能模块，该功能模块既能完成发送操作也能完成接收操作，该功能模块可以称为收发模块，例如收发模块可以用于执行图8所示的实施例中由终端设备所执行的全部发送操作和接收操作，例如，在执行发送操作 时，可以认为收发模块是发送模块，而在执行接收操作时，可以认为收发模块是接收模块；或者，发送模块1120和接收模块1130也可以是两个功能模块，收发模块可以视为这两个功能模块的统称，这两个功能模块分别为发送模块1120和接收模块1130，发送模块1120用于完成发送操作，例如发送模块1120可以用于执行图8所示的实施例中由终端设备所执行的全部发送操作，接收模块1130用于完成接收操作，例如接收模块1130可以用于执行图8所示的实施例中由终端设备所执行的全部接收操作。
其中，接收模块1130，用于接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
发送模块1120，用于通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
或者，接收模块1130，用于接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
处理模块1120，用于通过发送模块1120，通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
处理模块1110，用于确定用于发送所述第一控制信息的传输路径。
作为一种可选的实施方式，所述第一信令还用于指示所述至少一条传输路径的传输优先级，发送模块1120用于按照如下方式通过所述第一信令指示的所述至少一条传输路径发送第一控制信息：
处理模块1110，还用于根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
发送模块1120用于通过处理模块1110确定的所述第一传输路径发送所述第一控制信息。
或者，作为一种可选的实施方式，所述第一信令还用于指示所述至少一条传输路径的传输优先级，处理模块1110用于按照如下方式，通过发送模块1120通过所述第一信令指示的所述至少一条传输路径发送第一控制信息：
根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
通过发送模块1120，以所述第一传输路径发送所述第一控制信息。
作为一种可选的实施方式，所述第一传输路径为所述至少一条传输路径中传输优先级最高的传输路径。
作为一种可选的实施方式，发送模块1120用于按照如下方式通过所述主路径发送第一控制信息：
当所述主路径处于激活状态时，通过所述主路径发送所述第一控制信息。
或者，作为一种可选的实施方式，处理模块1110用于按照如下方式，通过发送模块1120，通过所述主路径发送第一控制信息：
当所述主路径处于激活状态时，通过发送模块1120，以所述主路径发送所述第一控制信息。
作为一种可选的实施方式，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
图12为本申请实施例提供的通信装置1200的示意性框图。示例性地，通信装置1200例如为网络设备1200。
网络设备1200包括处理模块1210和发送模块1220。可选的，还可以包括接收模块1230。示例性地，网络设备1200可以是网络设备，也可以是应用于网络设备中的芯片或者其他具有上述网络设备功能的组合器件、部件等。当网络设备1200是网络设备时，发送模块1220可以是发送器，接收模块1230可以是接收器，发送器或接收器可以包括天线和射频电路等，处理模块1210可以是处理器，处理器中可以包括一个或多个CPU。当网络设备1200是具有上述网络设备功能的部件时，发送模块1220和接收模块1230可以是射频单元，处理模块1210可以是处理器，例如基带处理器。当网络设备1200是芯片系统时，发送模块1220和接收模块1230可以是芯片(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块1210可以用于执行图8所示的实施例中由网络设备所执行的除了收发操作之外的全部操作，例如确定用于终端设备发送控制信息的传输路径等操作，和/或用于支持本文所描述的技术的其它过程。发送模块1220可以用于执行图8所示的实施例中由网络设备所执行的全部发送操作，例如S81，和/或用于支持本文所描述的技术的其它过程。接收模块1230可以用于执行图8所示的实施例中由网络设备所执行的全部接收操作，例如S82～S84，和/或用于支持本文所描述的技术的其它过程。
另外，发送模块1220和接收模块1230可以是一个功能模块，该功能模块既能完成发送操作也能完成接收操作，该功能模块可以称为收发模块，例如收发模块可以用于执行图8所示的实施例中由网络设备所执行的全部发送操作和接收操作，例如，在执行发送操作时，可以认为收发模块是发送模块，而在执行接收操作时，可以认为收发模块是接收模块；或者，发送模块1220和接收模块1230也可以是两个功能模块，收发模块可以视为这两个功能模块的统称，这两个功能模块分别为发送模块1220和接收模块1230，发送模块1220用于完成发送操作，例如发送模块1220可以用于执行图8所示的实施例中由网络设备所执行的全部发送操作，接收模块1230用于完成接收操作，例如接收模块1230可以用于执行图8所示的实施例中由网络设备所执行的全部接收操作。
其中，处理模块1210，用于确定至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径，所述至少一条传输路径用于终端设备发送控制信息；
发送模块1220，用于向所述终端设备发送第一信令，所述第一信令用于指示所述至少一条传输路径。
作为一种可选的实施方式，所述第一信令还用于指示所述至少一条传输路径的传输优先级。
作为一种可选的实施方式，
所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
图13为本申请实施例提供的通信装置1300的示意性框图。示例性地，通信装置1300例如为终端设备1300。
终端设备1300包括发送模块1320和接收模块1330。可选的，还可以包括处理模块1310。示例性地，终端设备1300可以是终端设备，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当终端设备1300是终端设备时，发送模块1320可以是发送器，接收模块1330可以是接收器，发送器或接收器可以包括天线和射频电路等，处理模块1310可以是处理器，处理器中可以包括一个或多个CPU。当终端设备1300是具有上述终端设备功能的部件时，发送模块1320和接收模块1330可以是射频单元，处理模块1310可以是处理器，例如基带处理器。当终端设备1300是芯片系统时，发送模块1320和接收模块1330可以是芯片(例如基带芯片)的输入输出接口、处理模块可以是芯片系统的处理器，可以包括一个或多个中央处理单元。
其中，处理模块1310可以用于执行图9所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如去激活第一传输路径等操作，和/或用于支持本文所描述的技术的其它过程。发送模块1320可以用于执行图9所示的实施例中由终端设备所执行的全部发送操作，例如S91和S92，和/或用于支持本文所描述的技术的其它过程。接收模块1330可以用于执行图9所示的实施例中由终端设备所执行的全部接收操作，例如S93，和/或用于支持本文所描述的技术的其它过程。
另外，发送模块1320和接收模块1330可以是一个功能模块，该功能模块既能完成发送操作也能完成接收操作，该功能模块可以称为收发模块，例如收发模块可以用于执行图9所示的实施例中由终端设备所执行的全部发送操作和接收操作，例如，在执行发送操作时，可以认为收发模块是发送模块，而在执行接收操作时，可以认为收发模块是接收模块；或者，发送模块1320和接收模块1330也可以是两个功能模块，收发模块可以视为这两个功能模块的统称，这两个功能模块分别为发送模块1320和接收模块1330，发送模块1320用于完成发送操作，例如发送模块1320可以用于执行图9所示的实施例中由终端设备所执行的全部发送操作，接收模块1330用于完成接收操作，例如接收模块1330可以用于执行图9所示的实施例中由终端设备所执行的全部接收操作。
其中，发送模块1320，用于通过第一传输路径发送第一控制信息，所述第一传输路径是第一无线承载对应的传输路径；
接收模块1330，用于接收来自网络设备的第一信令，所述第一信令用于去激活所述第一传输路径；
发送模块1320，还用于通过所述第一无线承载对应的第二传输路径发送第二控制信息。
作为一种可选的实施方式，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中包含主载波；或，
与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中，包含信道质量最好的载波。
本申请实施例还提供一种通信装置，该通信装置可以是终端设备也可以是电路。该通信装置可以用于执行上述方法实施例中由终端设备所执行的动作。
当该通信装置为终端设备时，图14示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图14中，终端设备以手机作为例子。如图14所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图14中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元(收发单元可以是一个功能单元，该功能单元能够实现发送功能和接收功能；或者，收发单元也可以包括两个功能单元，分别为能够实现接收功能的接收单元和能够实现发送功能的发送单元)，将具有处理功能的处理器视为终端设备的处理单元。如图14所示，终端设备包括收发单元1410和处理单元1420。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1410中用于实现接收功能的器件视为接收单元，将收发单元1410中用于实现发送功能的器件视为发送单元，即收发单元1410包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1410用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元1420用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，收发单元1410用于执行图6所示的实施例中终端设备的全部发送操作和接收操作，例如S61和S63，和/或收发单元1410还用于执行支持本文所描述的技术的其它过程。处理单元1420，用于执行图6所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如S62，和/或处理单元1420还用于执行支持本文所描述的技术的其它过程。
又例如，在一种实现方式中，收发单元1410用于执行图8所示的实施例中终端设备的全部发送操作和接收操作，例如S81～S84，和/或收发单元1410还用于执行支持本文所描述的技术的其它过程。处理单元1420，用于执行图8所示的实施例中由终端设备所执行 的除了收发操作之外的全部操作，例如确定用于传输第一控制信息的传输路径等操作，和/或处理单元1420还用于执行支持本文所描述的技术的其它过程。
再例如，在一种实现方式中，收发单元1410用于执行图9所示的实施例中终端设备的全部发送操作和接收操作，例如S91～S93，和/或收发单元1410还用于执行支持本文所描述的技术的其它过程。处理单元1420，用于执行图9所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如去激活第一传输路径等操作，和/或处理单元1420还用于执行支持本文所描述的技术的其它过程。
当该通信装置为芯片类的装置或者电路时，该装置可以包括收发单元和处理单元。其中，所述收发单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。
本实施例中的通信装置为终端设备时，可以参照图15所示的设备。作为一个例子，该设备可以完成类似于图10中处理模块1010的功能。作为另一个例子，该设备可以完成类似于图11中处理模块1110的功能。作为再一个例子，该设备可以完成类似于图13中处理模块1310的功能。在图15中，该设备包括处理器1510，发送数据处理器1520，接收数据处理器1530。上述实施例中的处理模块1010可以是图15中的该处理器1510，并完成相应的功能；上述实施例中的发送模块1020可以是图15中的发送数据处理器1520，并完成相应的功能；上述实施例中的接收模块1030可以是图15中的接收数据处理器1530，并完成相应的功能。或者，上述实施例中的处理模块1110可以是图15中的该处理器1510，并完成相应的功能；上述实施例中的发送模块1120可以是图15中的发送数据处理器1520，并完成相应的功能；上述实施例中的接收模块1130可以是图15中的接收数据处理器1530，并完成相应的功能。或者，上述实施例中的处理模块1310可以是图15中的该处理器1510，并完成相应的功能；上述实施例中的发送模块1320可以是图15中的发送数据处理器1520，并完成相应的功能；上述实施例中的接收模块1330可以是图15中的接收数据处理器1530，并完成相应的功能。
虽然图15中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图16示出本实施例的另一种形式。处理装置1600中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1603，接口1604。其中，处理器1603完成上述处理模块1010的功能，接口1604完成上述发送模块1020和接收模块1030的功能。或者，处理器1603完成上述处理模块1110的功能，接口1604完成上述发送模块1120和接收模块1130的功能。或者，处理器1603完成上述处理模块1310的功能，接口1604完成上述发送模块1320和接收模块1330的功能。作为另一种变形，该调制子系统包括存储器1606、处理器1603及存储在存储器1606上并可在处理器上运行的程序，该处理器1603执行该程序时实现上述方法实施例中终端设备侧的方法。需要注意的是，所述存储器1606可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1600中，只要该存储器1606可以连接到所述处理器1603即可。
本申请实施例中的装置为网络设备时，该装置可以如图17所示。装置1700包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)1710和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)1720。所述RRU1710可以 称为收发模块，该收发模块可以包括发送模块和接收模块。发送模块与图12中的发送模块1220对应，接收模块与图12中的接收模块1230对应。可选地，该收发模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线1711和射频单元1712。所述RRU 1710部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送指示信息。所述BBU1710部分主要用于进行基带处理，对基站进行控制等。所述RRU 1710与BBU1720可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 1720为基站的控制中心，也可以称为处理模块，可以与图12中的处理模块1210对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，生成上述指示信息等。
在一个示例中，所述BBU 1720可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网络)，也可以分别支持不同接入制式的无线接入网(如LTE网络，5G网络或其他网络)。所述BBU 1720还包括存储器1721和处理器1722。所述存储器1721用以存储必要的指令和数据。所述处理器1722用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器1721和处理器1722可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本申请实施例提供第一通信系统。第一通信系统可以包括上述的图6所示的实施例中所涉及的终端设备。终端设备例如为图10中的终端设备1000。
本申请实施例提供第二通信系统。第二通信系统可以包括上述的图8所示的实施例中所涉及的终端设备，以及包括上述的图8所示的实施例中所涉及的网络设备。终端设备例如为图11中的终端设备1100。网络设备例如为图12中的网络设备1200。
本申请实施例提供第三通信系统。第三通信系统可以包括上述的图9所示的实施例中所涉及的终端设备。终端设备例如为图13中的终端设备1300。
本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6所示的实施例中与终端设备相关的流程。
本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图8所示的实施例中与终端设备相关的流程。
本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图8所示的实施例中与网络设备相关的流程。
本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图9所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6所示的实 施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图8所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图8所示的实施例中与网络设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图9所示的实施例中与终端设备相关的流程。
应理解，本申请实施例中提及的处理器可以是CPU，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通 过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
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单元来实现本实施例方案的目的。
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。
所述功能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，可以存储在一个计算机可读取存储介质中。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)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。
以上所述，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应所述以权利要求的保护范围为准。

Claims (32)

  1. 一种通信方法，其特征在于，包括：
    接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，其中，所述第一无线承载配置了分组数据汇聚协议PDCP的重复功能；
    通过所述主路径在第一载波上发送第一控制信息，所述第一载波是为终端设备配置的多个载波中的至少一个。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一载波与所述主路径包括的逻辑信道具有关联关系；或，
    所述第一载波与所述第一无线承载对应的传输路径包括的逻辑信道具有关联关系；或，
    所述第一载波是为终端设备配置的任意载波。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一信令还用于指示，在所述主路径被去激活后，所述主路径对应的逻辑信道与载波之间的关联关系对于所述第一控制信息的传输适用或不适用。
  4. 根据权利要求1～3任一项所述的方法，其特征在于，所述第一控制信息包括PDCP控制协议数据单元PDU。
  5. 根据权利要求1～4任一项所述的方法，其特征在于，
    当所述主路径处于激活状态时，在通过所述主路径发送PDCP控制PDU时，所述主路径对应的逻辑信道与载波的之间关联关系不适用；和/或，
    当所述主路径处于激活状态时，在通过所述主路径发送PDCP数据PDU时，所述主路径对应的逻辑信道与载波的之间关联关系适用。
  6. 一种通信方法，其特征在于，包括：
    接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
    通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第一信令还用于指示所述至少一条传输路径的传输优先级，通过所述第一信令指示的所述至少一条传输路径发送第一控制信息，包括：
    根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
    通过所述第一传输路径发送所述第一控制信息。
  8. 根据权利要求6或7所述的方法，其特征在于，所述第一传输路径为所述至少一条传输路径中传输优先级最高的传输路径。
  9. 根据权利要求6～8任一项所述的方法，其特征在于，通过所述主路径发送第一控制信息，包括：
    当所述主路径处于激活状态时，通过所述主路径发送所述第一控制信息。
  10. 根据权利要求6～9任一项所述的方法，其特征在于，
    所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
    所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
    所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
  11. 一种通信方法，其特征在于，包括：
    确定至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径，所述至少一条传输路径用于终端设备发送控制信息；
    向所述终端设备发送第一信令，所述第一信令用于指示所述至少一条传输路径。
  12. 根据权利要求11所述的方法，其特征在于，所述第一信令还用于指示所述至少一条传输路径的传输优先级。
  13. 根据权利要求11或12所述的方法，其特征在于，
    所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
    所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
    所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
  14. 一种通信方法，其特征在于，包括：
    通过第一传输路径发送第一控制信息，所述第一传输路径是第一无线承载对应的传输路径；
    接收来自网络设备的第一信令，所述第一信令用于去激活所述第一传输路径；
    通过所述第一无线承载对应的第二传输路径发送第二控制信息。
  15. 根据权利要求14所述的方法，其特征在于，
    与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中包含主载波；或，
    与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中，包含信道质量最好的载波。
  16. 一种通信装置，其特征在于，包括：
    接收模块，用于接收来自网络设备的第一信令，所述第一信令用于去激活第一无线承载对应的主路径，其中，所述第一无线承载配置了PDCP的重复功能；
    发送模块，用于通过所述主路径在第一载波上发送第一控制信息，所述第一载波是为所述通信装置配置的多个载波中的至少一个。
  17. 根据权利要求16所述的通信装置，其特征在于，
    所述第一载波与所述主路径包括的逻辑信道具有关联关系；或，
    所述第一载波与所述第一无线承载对应的传输路径包括的逻辑信道具有关联关系；或，
    所述第一载波是为所述通信装置配置的任意载波。
  18. 根据权利要求16或17所述的通信装置，其特征在于，所述第一信令还用于指示，在所述主路径被去激活后，所述主路径对应的逻辑信道与载波之间的关联关系对于所述第一控制信息的传输适用或不适用。
  19. 根据权利要求16～18任一项所述的通信装置，其特征在于，所述第一控制信息包 括PDCP控制PDU。
  20. 根据权利要求16～19任一项所述的通信装置，其特征在于，
    当所述主路径处于激活状态时，在通过所述主路径发送PDCP控制PDU时，所述主路径对应的逻辑信道与载波的之间关联关系不适用；和/或，
    当所述主路径处于激活状态时，在通过所述主路径发送PDCP数据PDU时，所述主路径对应的逻辑信道与载波的之间关联关系适用。
  21. 一种通信装置，其特征在于，包括：
    接收模块，用于接收来自网络设备的第一信令，所述第一信令用于指示控制信息的至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径；
    发送模块，用于通过所述第一无线承载对应的主路径或所述至少一条传输路径发送第一控制信息。
  22. 根据权利要求21所述的通信装置，其特征在于，所述通信装置还包括处理模块；所述第一信令还用于指示所述至少一条传输路径的传输优先级，所述发送模块用于通过如下方式通过所述第一信令指示的所述至少一条传输路径发送第一控制信息：
    所述处理模块，用于根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径，或，当所述主路径处于去激活状态时，根据所述至少一条传输路径的传输优先级，选择第一传输路径为所述第一控制信息的传输路径；
    所述发送模块用于通过所述处理模块确定的所述第一传输路径发送所述第一控制信息。
  23. 根据权利要求21或22所述的通信装置，其特征在于，所述第一传输路径为所述至少一条传输路径中传输优先级最高的传输路径。
  24. 根据权利要求21～23任一项所述的通信装置，其特征在于，所述发送模块用于通过如下方式通过所述主路径发送第一控制信息：
    当所述主路径处于激活状态时，通过所述主路径发送所述第一控制信息。
  25. 根据权利要求21～24任一项所述的通信装置，其特征在于，
    所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
    所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
    所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
  26. 一种网络设备，其特征在于，包括：
    处理模块，用于确定至少一条传输路径，所述至少一条传输路径是第一无线承载对应的传输路径，所述至少一条传输路径用于通信装置发送控制信息；
    发送模块，用于向所述通信装置发送第一信令，所述第一信令用于指示所述至少一条传输路径。
  27. 根据权利要求26所述的网络设备，其特征在于，所述第一信令还用于指示所述至少一条传输路径的传输优先级。
  28. 根据权利要求26或27所述的网络设备，其特征在于，
    所述第一信令还用于为所述第一无线承载配置PDCP的重复功能，其中，配置了所述PDCP的重复功能的所述第一无线承载中的数据包在PDCP层被复制成至少两份，分别通过至少两条传输路径传输，所述至少两条传输路径包括所述至少一条传输路径；或，
    所述第一信令还用于激活所述主路径，其中，在所述主路径被激活后，所述主路径用于传输经过复制的数据包；或，
    所述第一信令还用于去激活所述主路径，其中，在所述主路径被去激活后，所述主路径不再用于传输经过复制的数据包。
  29. 一种通信装置，其特征在于，包括：
    发送模块，用于通过第一传输路径发送第一控制信息，所述第一传输路径是第一无线承载对应的传输路径；
    接收模块，用于接收来自网络设备的第一信令，所述第一信令用于去激活所述第一传输路径；
    所述发送模块，还用于通过所述第一无线承载对应的第二传输路径发送第二控制信息。
  30. 根据权利要求29所述的通信装置，其特征在于，
    与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中包含主载波；或，
    与所述第二传输路径对应的逻辑信道具有关联关系的至少一个载波中，包含信道质量最好的载波。
  31. 一种通信系统，其特征在于，所述通信系统包括如权利要求16～20任一项所述的通信装置；或者，所述通信系统包括如权利要求21～25任一项所述的通信装置，以及包括如权利要求26～28任一项所述的网络设备；或者，所述通信系统包括如权利要求29～30任一项所述的通信装置。
  32. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1～5中任意一项所述的方法，或者使得所述计算机执行如权利要求6～10中任意一项所述的方法，或者使得所述计算机执行如权利要求11～13中任意一项所述的方法，或者使得所述计算机执行如权利要求14～15中任意一项所述的方法。
PCT/CN2019/119543 2019-11-19 2019-11-19 一种通信方法、装置及设备 WO2021097689A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/119543 WO2021097689A1 (zh) 2019-11-19 2019-11-19 一种通信方法、装置及设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/119543 WO2021097689A1 (zh) 2019-11-19 2019-11-19 一种通信方法、装置及设备

Publications (1)

Publication Number Publication Date
WO2021097689A1 true WO2021097689A1 (zh) 2021-05-27

Family

ID=75979911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/119543 WO2021097689A1 (zh) 2019-11-19 2019-11-19 一种通信方法、装置及设备

Country Status (1)

Country Link
WO (1) WO2021097689A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023065818A1 (zh) * 2021-10-19 2023-04-27 大唐移动通信设备有限公司 传输路径状态管理方法、装置、终端及通信设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015115854A1 (en) * 2014-01-29 2015-08-06 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving data using a plurality of carriers in mobile communication system
CN108234092A (zh) * 2016-12-14 2018-06-29 中国移动通信有限公司研究院 一种信令配置方法、rrc实体以及pdcp实体
WO2018200565A1 (en) * 2017-04-24 2018-11-01 Motorola Mobility Llc Duplicating pdcp pdus for a radio bearer
WO2018203697A1 (en) * 2017-05-04 2018-11-08 Lg Electronics Inc. Method and device for transmitting data unit
CN109417723A (zh) * 2017-02-02 2019-03-01 Lg电子株式会社 用于发送数据单元的方法和设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015115854A1 (en) * 2014-01-29 2015-08-06 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving data using a plurality of carriers in mobile communication system
CN108234092A (zh) * 2016-12-14 2018-06-29 中国移动通信有限公司研究院 一种信令配置方法、rrc实体以及pdcp实体
CN109417723A (zh) * 2017-02-02 2019-03-01 Lg电子株式会社 用于发送数据单元的方法和设备
WO2018200565A1 (en) * 2017-04-24 2018-11-01 Motorola Mobility Llc Duplicating pdcp pdus for a radio bearer
WO2018203697A1 (en) * 2017-05-04 2018-11-08 Lg Electronics Inc. Method and device for transmitting data unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023065818A1 (zh) * 2021-10-19 2023-04-27 大唐移动通信设备有限公司 传输路径状态管理方法、装置、终端及通信设备

Similar Documents

Publication Publication Date Title
CN112889258B (zh) 一种通信方法及装置
WO2019137500A1 (zh) 一种信息发送方法、接收方法和装置
WO2019019224A1 (zh) 命令接收方法、装置及通信系统
CN111149383A (zh) 用于在无线通信系统中发送分组的方法和设备
CN111294171B (zh) 一种配置逻辑信道的方法及设备
WO2021056589A1 (zh) 一种数据传输方法及装置
WO2021238318A1 (zh) 一种通信方法及装置
US12120756B2 (en) Method for data replication, data counting method, corresponding entities and media
US11991785B2 (en) Communication method and device for use with a packet data convergence protocol (PDCP) duplicate transmission function
WO2019076347A1 (zh) 通信方法和通信装置
TW201922021A (zh) 方法、設備、電腦程式產品及電腦程式
WO2021258766A1 (zh) 一种配置终端设备的方法及设备
TW202416694A (zh) 協作傳輸的數據調度的方法和裝置
WO2021097689A1 (zh) 一种通信方法、装置及设备
US20230089446A1 (en) Beam state updating in wireless communication
US20220394787A1 (en) Communication method and apparatus
WO2022033362A1 (zh) 一种指示信息接收的方法及装置
WO2021004234A1 (zh) 一种数据传输方法及通信装置
WO2022120541A1 (zh) 数据传输的方法和装置
WO2021134763A1 (zh) 一种恢复传输的方法、装置及设备
WO2021088063A1 (zh) 一种通信方法及装置
CN111404633B (zh) 一种选择传输模式的方法及设备
CN114095978B (zh) 一种配置终端设备的方法及设备
WO2022141298A1 (zh) 一种通信方法及装置
WO2022016477A1 (zh) 一种通信方法及通信装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19953533

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19953533

Country of ref document: EP

Kind code of ref document: A1