Abstract:
This application provides a data transmission method and apparatus. The method includes: receiving, by a first network node, first indication information sent by a second network node, where the first indication information is used by the first network node to determine first duration, and the first duration is duration from receiving a first data packet by the first network node to sending the first data packet by the first network node; and sending, by the first network node, the first data packet based on the first indication information. The data transmission method and apparatus provided in embodiments of this application help ensure that a communications network transmits a data packet based on a duration requirement.
Abstract:
A communication rate adjustment method and a related device, the device including at least one processor and at least one non-transitory memory storing a program to be executed by the at least one processor, the program including instructions for receiving first information from a second network device, where the first information comprises packet loss information and/or a second recommended uplink bit rate of a logical channel, where the packet loss information is of a packet data convergence protocol layer of uplink transmission and corresponds to the logical channel, obtaining a first recommended uplink bit rate of the logical channel based on the first information, and sending the first recommended uplink bit rate of the logical channel to a terminal device.
Abstract:
Embodiments of this application provide a duplication mode communication processing method in a central unit-distributed unit (CU-DU) architecture. In a possible implementation, in a process of establishing a user plane tunnel between a CU and a DU by exchanging information about uplink tunnel endpoints and information about downlink tunnel endpoints, the DU provides an identity of a primary path to the CU, thereby implementing a duplication mode of a data radio bearer.
Abstract:
According to the embodiments of the present invention, a report measurement can be implemented between a radio network controller and a user equipment in a CELL_FACH state by using a current MC message and a current MR message; and in a process of implementing the report measurement, coordination between the report measurement and a cell reselection measurement executed by the user equipment can be implemented to minimize an impact of the report measurement on the cell reselection measurement.
Abstract:
Embodiments provide a notification method, an apparatus, and a communications system, and relate to the communications field, to ensure that a DU performs accurate L2 handling in a CU-DU architecture. The notification method includes: a CU sends a first message to the DU, where the first message includes an ID of a first DRB on which bearer type change occurs and first indication information indicating the DU to perform L2 handling; or the first message includes an ID of a first DRB and second indication information indicating that bearer type change occurs. The CU receives a second message sent by the DU, where the second message includes a cell group configuration of the L2 handling.
Abstract:
A communication system and apparatus for measuring quality of experience (QoE) are provided. The communication system includes a source access network device and a target access network device, wherein the source access network device is configured to determine that a terminal device is handed over from the source access network device to the target access network device, and the target access network device is configured to receive first indication information from the source network device, where the first indication information indicates a quality of experience (QoE) measurement that has been started by the terminal device. When load of an access network device is high, the QoE measurement executed by the terminal device is adjusted to reduce the load of the access network device and improve communication efficiency.
Abstract:
Example data security processing methods and apparatus are described. One example method includes setting up a first PDU session. A first base station derives a first user plane key based on a received base key and performs security processing on user plane data in the first PDU session by using the first user plane key and a security algorithm. A second PDU session is set up. The first base station derives a second user plane key based on the base key and performs security processing on user plane data in the second PDU session by using the second user plane key and the security algorithm. The user plane key includes a user plane encryption key and/or a user plane integrity protection key.
Abstract:
Example communication methods and apparatus are described. One example method includes that a first network node receives first configuration information from a second network node. The first configuration information includes a serving cell set configured for a terminal device, and indicates a status of a secondary cell. The first network node sends the first configuration information and first indication information to the terminal device, where the first indication information includes information about a status of at least one secondary cell, and the at least one secondary cell belongs to the serving cell set.
Abstract:
Embodiments of the present disclosure disclose a service transmission control method, a related device, and a communications system. A service transmission control device receives indication information from a service transmission device, where the indication information is used to indicate target service feature information corresponding to a target service data flow transmitted by the service transmission device, or the indication information is used to indicate a quality of service parameter corresponding to a target service data flow transmitted by the service transmission device, and the target service data flow is one of a plurality of service data flows included in a target service transmitted by the service transmission device; and determines, based on the indication information, a target quality of service parameter corresponding to the target service data flow. disclosure
Abstract:
This application provides a communication method and a communication system. A central unit (CU) obtains a quality of service (QoS) parameter of a QoS data flow and performs mapping the QoS data flow to a bearer based on the QoS parameter of the QoS data flow. The CU determines a QoS parameter of the bearer based on the QoS parameter of the QoS data flow and sends a context setup request message to a distributed unit (DU), wherein the context setup request message comprises the QoS parameter of the bearer, the QoS parameter of the QoS data flow and the mapping relationship between the QoS data flow and the bearer.