JP-2023514265-A5 -

Dates

Publication Date

20230522

Application Date

20210209

Description

The embodiments of this application are as follows: A storage medium in which computer programs are stored, When the computer program is executed on the processor, it realizes the method described in any one of the above embodiments. Provides a storage medium. The present invention provides, for example, the following: (Item 1) A communication method used in the first communication node, Receiving Internet Protocol IP data transmitted from the second communication node, This includes mapping the IP data to a relay bearer according to a first preset mapping configuration, and transmitting the mapped IP data to a third communication node. Communication method. (Item 2) The protocol data unit PDU session selected by the first communication node for the IP data includes: A separate PDU session is established for the aforementioned IP data, and the IP data is transmitted using a data wireless bearer DRB corresponding to the PDU session. This includes, one of the following: transmitting the IP data in the PDU session of the first communication node itself, The method described in item 1. (Item 3) In a situation where at least two second communication nodes are connected to the same first communication node, the first preset mapping configuration includes: A one-to-one mapping to instruct different second communication nodes to transmit IP data via different relay air interface DRBs, This includes one of a many-to-one mappings for instructing that IP data from at least two second communication nodes be mapped and transmitted to the same relay air interface DRB. The method described in item 1. (Item 4) When the first communication node and the at least two second communication nodes are connected by a new wireless sidelink interface NR PC5, and the second communication node and the third communication node are connected by an NR air interface, the many-to-one mapping includes: Based on the air interface quality of service (QoS) rules and DRB configuration of the first communication node, the IP data of the at least two second communication nodes is mapped to the relay air interface DRB, Based on the mapping relationship between the PC5 DRB and the air interface DRB, which is set or pre-configured by the third communication node, the IP data is mapped to the relay air interface DRB. Based on the mapping relationship between the PC5 QoS flow and the NR air interface QoS flow, which is set or pre-configured by the third communication node, and the configuration of the NR air interface DRB, the IP data is mapped to the relay air interface DRB. This includes one of the following forms: mapping the IP data to the relay air interface DRB based on the mapping relationship between the PC5 QoS flow and the air interface DRB, which is set or pre-configured by the third communication node; The method described in item 3. (Item 5) If the first communication node and the second communication node are connected by an NR PC5, and the second communication node and the third communication node are connected by an NR air interface, before receiving IP data transmitted from the second communication node, Receiving a relay connection request or a PC5 unicast connection request from the second communication node, The process further includes establishing a mapping between the air interface DRB and the downlink PC5 DRB, and the uplink and downlink data, based on the configuration information fed back from the third communication node. The method described in item 1. (Item 6) When the first communication node and the second communication node are connected by an NR PC5, and the second communication node and the third communication node are connected by an NR air interface, during the process of establishing a Layer 2 link connection between the first communication node and the second communication node, the previously acquired PC5 QoS information is mapped as air interface QoS information using a third preset mapping method. The method described in item 5. (Item 7) The third preset mapping mode described above includes: In the PC5 QoS flow, the fifth-generation mobile communication technology quality of service identity (PQI) on the sidelink interface is mapped to the exact same air interface fifth-generation mobile communication technology quality of service identity (5QI). If the exact same air interface 5QI does not match the PQI, the 5QI value closest to the QoS attribute indicated by the PQI in the standard 5QI list is selected. This includes setting the guaranteed stream bitrate GFBR value and the maximum stream bitrate MFBR value in the air interface QoS flow as the GFBR value and MFBR value in the PC5 QoS flow. The method described in item 6. (Item 8) After mapping the previously acquired PC5 QoS information as air interface QoS information, Based on the air interface QoS flow, send a PDU session establishment request to the third communication node for transferring IP data from the second communication node, or The process furthe