WO2021160105A1 - 通信方法、设备和存储介质 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
- H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H04W88/02—Terminal devices
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- H—ELECTRICITY
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Definitions
- This application relates to communication, for example, to a communication method, device, and storage medium.
- the embodiments of the present application provide a communication method, device, and storage medium, which effectively implement direct link relay communication in a 5G NR system.
- the embodiment of the present application provides a communication method, which is applied to a first communication node, and includes:
- the IP data is mapped to the relay bearer according to the first preset mapping manner, and transmitted to the third communication node.
- the embodiment of the present application provides a communication method, which is applied to a first communication node, and includes:
- the downlink data is mapped to PC5 data according to the second preset mapping manner, mapped to PC5DRB, and transmitted to the second communication node to which it belongs.
- An embodiment of the present application provides a device, including: a memory, and one or more processors;
- the memory is used to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any one of the foregoing embodiments.
- An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, the method described in any of the foregoing embodiments is implemented.
- FIG. 1 is a flowchart of a communication method provided by an embodiment of the present application
- FIG. 2 is a flowchart of another communication method provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of a display of a user plane protocol stack provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of an air interface data forwarding bearer establishment process when a relay UE forwards data for a remote UE according to an embodiment of the present application;
- FIG. 5 is a schematic diagram showing another user plane protocol stack provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of an air interface data forwarding bearer establishment process when another relay UE forwards data for a remote UE according to an embodiment of the present application
- FIG. 7 is a schematic diagram showing another user plane protocol stack provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of an air interface data forwarding bearer establishment process when another relay UE forwards data for a remote UE according to an embodiment of the present application
- FIG. 9 is a structural block diagram of a communication device provided by an embodiment of the present application.
- FIG. 10 is a structural block diagram of another communication device provided by an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a device provided by an embodiment of the present application.
- D2D device-to-device
- the application of D2D technology can reduce the burden on the cellular network, reduce the battery power consumption of user equipment, increase the data rate, and improve the robustness of the network infrastructure, which satisfies the requirements of the aforementioned high data rate services and proximity services.
- the D2D technology is also called Proximity Services (ProSe), and communicates with a unilateral/side chain/through link (Side Link, SL); the interface between the device and the device is the PC5 interface.
- SideLink-based relay communication technology In order to be able to support a wider range of network communications, SideLink-based relay communication technology has attracted widespread attention. From the perspective of communication objects, SideLink communication technology can be divided into:
- UE-to-Network relay This communication technology supports the provision of data relay functions for the UE in areas where the base station cannot cover or the base station has weak coverage.
- a UE that needs to communicate with a base station but cannot directly connect to a base station becomes a remote UE (remote UE), and a UE that provides a relay function for a remote UE is called a relay UE (relay UE).
- UE-to-UE realy This communication technology supports two UEs with communication requirements without direct communication capability or direct communication conditions, through other supporting UE assistance Complete the communication between UEs. Among them, a UE with communication requirements becomes a remote UE, and a UE that provides a relay function for the remote UE is called a relay UE.
- SideLink relay communication technology can be divided into:
- IP Internet Protocol
- Layer-3 Layer-3 based, based on layer 3 relay technology
- RRC Radio Resource Control
- Relay technology based on the access layer (Layer2-based, based on layer 2), that is, the remote UE establishes a connection with the gNB and the core network through the relay, and the remote UE forwards the bearer data between the relay UE and the gNB.
- Layer3-based relay In the actual communication process, Layer3-based relay is simple to implement, but the reliability and security are not good enough, and Layer2-based relay is complex to implement, but the support for reliability and security is stronger than Layer-3 based relay, and it can effectively Remote UE supports mobility and security.
- the present application provides a communication method to effectively implement direct link relay communication in a 5G NR system.
- FIG. 1 is a flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 1, this embodiment is applied to the first communication node and is used for uplink data transmission. Exemplarily, the first communication node may be a relay UE. As shown in Figure 1, this embodiment includes: S110-S120.
- S120 Map the IP data to the relay bearer according to the first preset mapping manner, and transmit it to the third communication node.
- the first communication node can be used as a relay node between the second communication node and the third communication node to forward the transmission data between the second communication node and the third communication node.
- the IP data may be mapped to the relay bearer according to the first preset mapping method configured in advance for transmission to the third communication node .
- the PDU session selected by the first communication node for the IP data includes one of the following:
- PDU Protocol Data Unit
- DRB Data Radio Bearer
- the IP data is transmitted using the PDU session of the first communication node itself.
- the first preset mapping manner includes one of the following: one-to-one mapping; many-to-one mapping;
- the one-to-one mapping is used to indicate that the IP data of different second communication nodes are sent through different relay air interface DRBs; the many-to-one mapping is used to indicate that the IP data of at least two second communication nodes are mapped to the same A relay air interface DRB transmits.
- multiple pairs A mapping includes one of the following methods:
- the IP data is mapped to the relay air interface DRB;
- mapping the IP data to the relay air interface DRB based on the mapping relationship between the PC5 QoS flow and the NR air interface QoS flow configured 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.
- a new air interface direct link interface NR PC5 is used between the first communication node and the second communication node to connect, and the second communication node and the third communication node use NR air interface
- the method further includes:
- the air interface DRB and the downlink PC5 DRB may be established before the relay connection
- the QoS information in the request and the PC5 unicast connection request are sent to the third communication node.
- the third preset mapping method is used to map the pre-acquired PC5 QoS information to air interface QoS information.
- the third preset mapping method includes:
- the 5QI value closest to the QoS attribute represented by the PQI in the standard 5QI list is selected;
- the method further includes:
- the communication method further includes: receiving a relay air interface DRB or PC5 DRB configured by the third communication node, and a mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: the mapping of PC5 QoS flow and air interface QoS flow, the mapping of PC5 DRB and air interface DRB, the mapping of PC5 QoS flow and air interface DRB, and the mapping of PC5 DRB and air interface QoS flow.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session establishment request or a PDU session modification request;
- the first communication node reports PC5 DRB information
- the PC5 DRB information includes at least one of the following: bearer identification, radio link control protocol (Radio Link Control, RLC) ) Mode, logical channel identification, logical channel priority, RLC related configuration;
- the first communication node After the first communication node sends the sidelink UE information (SUI) to the third communication node.
- SAI sidelink UE information
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: PC5 QoS information and air interface QoS information mapping, quality of service flow identifier (QoS flow identifier, QFI) and PC5 flow identifier (PC5 Flow) Identifier, PFI) mapping;
- the mapping between the PC5 QoS information and the air interface QoS information includes at least one of the following: mapping the 5QI in the air interface QoS flow to an identical PC5 PQI; and the 5QI does not match the PQI at the identical air interface
- GFBR and MFBR in the air interface QoS flow are directly set to GFBR and MFBR in the PC5 QoS information;
- the mapping configuration includes at least one of the following: PC5 PFI and air interface DRB identification mapping, PC5 PQI and air interface DRB priority mapping, PC5 PQI and air interface logical channel priority mapping ;
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface DRB priority mapping, PC5 DRB identification and air interface DRB identification mapping, PC5 logical channel priority and air interface logic Channel priority mapping, PC5 logical channel identification and air interface logical channel identification;
- the configuration includes at least one of the following: PC5DRB identification and Uu QFI mapping, PC5 DRB priority and Uu 5QI mapping, PC5 logical channel priority and Uu 5QI mapping.
- multiple pairs A mapping includes one of the following methods:
- the IP data is mapped to the relay NR air interface DRB;
- the second communication Based on the neighbor service packet priority (PPPP) of the received PC5 data of the second communication node, the mapping relationship between PPPP and 5QI configured or pre-configured by the third communication node, and the NR air interface DRB configuration, the second communication
- the node's IP data is mapped to the air interface QoS flow, and then to the relay NR air interface DRB;
- the IP data of the second communication node is mapped to the relay NR air interface DRB.
- the method before receiving the Internet Protocol IP data sent by the second communication node, the method further includes:
- the air interface DRB and the mapping of uplink and downlink data are established according to the configuration information fed back by the third communication node.
- the relay connection request may be The QoS information in the established relay connection and the PC5 unicast connection requested by the PC5 unicast connection are sent to the third communication node.
- the fourth preset mapping method is used to map the pre-acquired PPPP value to the NR air interface QoS information.
- the fourth preset mapping method includes:
- the method further includes:
- a PDU session modification request is sent to the third communication node, where the PDU session modification request is used to modify the current PDU session and carries the air interface QoS information obtained after the mapping.
- the communication method further includes: receiving a relay air interface DRB configured by the third communication node, and a mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: the mapping of PC5 logical channel and air interface DRB, the mapping of PC5 PPPP data flow and air interface DRB, and the mapping of PC5 PPPP data flow and Uu QoS flow.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session establishment request or a PDU session modification request;
- the first communication node After the first communication node establishes a relay connection with the second communication node, the first communication node reports LTE PC5 logical channel information.
- the PC5 logical channel information includes at least one of the following: RLC mode, logical channel identifier, logical channel priority, RLC related configuration;
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: LTE PC5 logical channel identification and NR air interface DRB identification mapping, LTE PC5 logical channel priority and NR air interface DRB priority mapping , LTE PC5 logical channel priority and NR air interface logical channel priority mapping, LTE PC5 logical channel identification and NR air interface logical channel identification mapping;
- the mapping configuration includes at least one of the following: LTE PPPP value and air interface DRB priority mapping configuration, LTE PPPP value and air interface logical channel priority mapping;
- the mapping configuration includes at least one of the following: LTE PPPP value and NR air interface QoS information mapping configuration;
- mapping configuration of the LTE PC5 PPPP value and the NR air interface QoS information where the mapping configuration includes at least one of the following: a mapping table of the LTE PC5 PPPP value and the NR air interface 5QI.
- the many-to-one mapping includes one of the following methods one:
- IP data of at least two second communication nodes to the LTE air interface DRB according to the upstream traffic flow template (TFT) and DRB configuration of the first communication node;
- TFT upstream traffic flow template
- IP data is mapped to LTE air interface DRB;
- mapping the IP data to the LTE air interface DRB based on the mapping relationship between the NR PC5 QoS flow configured or pre-configured by the third communication node and the LTE air interface DRB;
- the IP data is mapped to the LTE air interface DRB .
- EPS Evolved Packet System
- the fifth preset mapping method is used to obtain the NR PC5 QoS information is mapped to LTE air interface QoS information.
- the fifth preset mapping method includes:
- the method further includes:
- a PDU session modification request is sent to the third communication node, where the PDU session modification request is used to modify the current PDU session and carries the air interface QoS information obtained after the mapping.
- the communication method further includes: receiving a relay air interface DRB configured by the third communication node, and a mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: NR PC5 QoS and LTE air interface EPS bearer mapping, NR PC5 DRB and LTE air interface DRB mapping, NR PC5 QoS flow and LTE air interface DRB mapping, NR PC5 DRB and LTE air interface EPS bearer mapping.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session connection request or a bearer resource modification request;
- the first communication node reports NR PC5 DRB information, and NR PC5 DRB information includes at least one of the following: bearer identifier, RLC mode, logical channel identifier, Logical channel priority, RLC related configuration;
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: the mapping between PC5 QFI and air interface EPS bearer identifier, and the mapping between NR PC5 QoS Info and LTE air interface QoS Info;
- the mapping between PC5 QoS Info and air interface QoS Info includes at least one of the following:
- the GFBR and MFBR in the air interface QoS flow are directly set to the GFBR and MFBR in the PC5 QoS Info;
- the GFBR and MFBR in the PC5 QoS flow are directly set to the GFBR and MFBR in the Uu QoS Info;
- the mapping configuration includes at least one of the following: PC5 PFI and air interface DRB identification mapping, PC5 PQI and air interface DRB priority mapping, PC5 PQI and air interface logical channel priority mapping ;
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface DRB priority mapping, PC5 DRB identification and air interface DRB identification mapping, PC5 logical channel priority and air interface logic Channel priority mapping, mapping between NR PC5 logical channel identification and LTE air interface logical channel identification.
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface EPS bearer QCI mapping, PC5 DRB identification and air interface EPS bearer identification mapping, PC5 logical channel and Air interface EPS bearer QCI mapping.
- the switching mode of the second communication node includes one of the following: switching from the air interface connection to the relay connection ; Switch from the relay connection to the air interface connection; switch from the first first communication node connection to the second first communication node connection.
- the uplink data buffered in the second communication node waiting to be transmitted includes one of the following connection modes:
- the air interface QoS flow is mapped to the PC5 QoS flow based on the configuration or pre-configured air interface QoS flow to PC5 QoS flow mapping configuration of the third communication node, or based on The third communication node configuration or pre-configured air interface QoS flow to PC5 DRB mapping configuration, and the air interface QoS flow is mapped to PC5 DRB;
- the IP data For the IP data that has been mapped to the air interface DRB in the second communication node, the IP data is decrypted according to the air interface packet data convergence protocol (Packet Data Convergence Protocol, PDCP), and based on the air interface DRB to PC5 DRB configured or pre-configured by the third communication node
- the mapping configuration is to map the air interface DRB to PC5 DRB.
- the uplink data buffered in the second communication node and waiting for transmission includes one of the following connection modes:
- the PC5 QoS flow is mapped to the air interface QoS flow based on the configuration or pre-configured air interface QoS flow to the PC5 QoS flow mapping configuration of the third communication node, or based on The PC5 QoS flow to the air interface DRB mapping configuration configured or pre-configured by the third communication node, and the PC5 QoS flow is mapped to the air interface DRB;
- IP data that has been mapped to PC5 DRB in the second communication node decrypt the IP data according to PC5 PDCP, and map the PC5 DRB to the air interface DRB based on the PC5 DRB to air interface DRB mapping configuration configured or pre-configured by the third communication node .
- the switching mode of the second communication node when the switching mode of the second communication node is from the first first communication node to the second first communication node, for the uplink data buffered in the second communication node waiting to be transmitted, Including one of the following connection methods:
- the IP data that has been mapped to the PC5 DRB established with the first first communication node is decrypted according to the PDCP layer established with the second first communication node, and mapped to the IP data established with the second first communication node.
- the first first communication node continues to complete the uplink transmission.
- the link switching decision includes one of the following:
- the link switching criterion is configured or pre-configured through the third communication node.
- the link switching criterion includes at least one of the following:
- Air interface link quality threshold for service type; PC5 interface link quality threshold;
- Measurement configuration including: air interface measurement configuration and relay measurement configuration.
- the link switching criterion includes at least one of the following:
- Air interface link quality threshold PC5 interface link quality threshold; first communication node air interface link quality threshold; PC5 interface resource pool channel busy ratio (CBR) threshold; service type/service requirement.
- CBR PC5 interface resource pool channel busy ratio
- Fig. 2 is a flowchart of another communication method provided by an embodiment of the present application. This embodiment is applied to the second communication node and is used for downlink data transmission. As shown in Figure 2, this embodiment includes S201-S203.
- S201 Receive downlink data sent by the third communication node.
- S202 Determine the second communication node to which it belongs according to the IP address in the downlink data.
- S203 Map the downlink data to PC5 data according to a second preset mapping manner, and transmit it to the second communication node to which it belongs.
- the The second preset mapping method includes one of the following:
- the air interface QoS flow is mapped to the PC5 QoS flow, and then to the PC5 DRB;
- the downlink data is mapped to the PC5 DRB.
- the The second preset mapping method includes one of the following:
- the IP data of the second communication node is mapped to the LTE PC5 logical channel.
- the The second preset mapping method includes one of the following:
- mapping the IP data to the NR PC5 DRB based on the mapping relationship between the LTE air interface DRB and NR PC5 DRB configured or pre-configured by the third communication node;
- the IP data is mapped to the LTE air interface DRB.
- the uplink transmission, uplink, and uplink data involved between the first communication node refer to the process of sending by the second communication node and receiving by the first communication node; correspondingly ,
- the downlink transmission, downlink, and downlink data involved between the first communication node and the second communication node refer to the process of sending by the first communication node and receiving by the second communication node.
- NR PC5 is used between the first communication node and the second communication node, and NR is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- the remote UE does not establish an RRC connection with the base station, that is, the base station does not recognize the remote UE, and does not save the remote UE context, the core network does not recognize the remote UE, and does not establish a connection for the remote UE.
- Maintain PDU session (session).
- the remote UE's IP data packet is sent to the relay UE through the PC5 unicast connection, and the relay UE sends the remote UE's IP data packet to the base station through the relay UE's own air interface bearer, and the base station transmits the data to the 5G core network through the relay UE's PDU session (5G Core, 5GC).
- Fig. 3 is a schematic diagram of a display of a user plane protocol stack provided by an embodiment of the present application. As shown in Figure 3, the user plane protocol stack is an L3 UE-to-Network relay user plane protocol stack.
- uplink user plane data routing it includes steps one to four:
- Step 1 The Remote UE receives the IP data packet from the application layer, and transmits the IP data packet to the relay UE through self-derived QoS processing rules and PC5 unicast bearer configuration.
- the determination can be made in the following ways:
- Method 1 The remote UE and the relay UE negotiate to establish a PC5 unicast bearer or logical channel through RRC signaling, and are specifically used to forward remote UE data.
- the PC5 DRB identifier or the logical channel identifier (Logical Channel ID, LCID).
- Method 2 The data sent by the Remote UE to the gNB and the data sent to the relay UE use different SRC ID (source ID) and DST ID (destination ID).
- the relay UE uses Media Access Control (MAC). )
- the ID contained in the subheader indicates that it is possible to distinguish whether it is data sent to itself or data that needs to be relayed.
- Step 2 Relay UE receives and parses the IP data packet sent by the remote UE, and judges whether the IP data packet needs to be relayed and forwarded to the gNB according to the ID in the MAC subheader, or the negotiated logical channel/bearer, if it is in progress Following the forwarded data, the relay UE reads the IP information of the remote UE data packet, uses the network address translation (Network Address Translation, NAT) function to modify the IP header of the corresponding remote UE data packet and forwards it.
- Network Address Translation Network Address Translation
- Step 3 The Relay UE maps the IP data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- the Relay UE maps the IP data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- it includes one of the following mapping methods:
- Relay UE establishes an independent PDU session for data that needs to be relayed and forwarded, and transmits remote UE data on the DRB corresponding to the PDU session;
- the Relay UE uses its own PDU session to transmit the data of the remote UE.
- the relay UE can choose the following two mapping methods:
- mapping method 1 One-to-one mapping, that is, the IP data of different remote UEs are sent through different air interface DRBs;
- Mapping method 2 Many-to-one mapping, that is, IP data packets with similar QoS of multiple remote UEs can be mapped to the same Uu DRB for transmission.
- Method 1 The relay UE does not distinguish the remote UE from which the IP data packet comes, and maps the IP data packets of multiple remote UEs to the Uu DRB according to the Uu QoS rules and DRB configuration of the relay UE;
- Method 2 Relay UE maps the forwarded IP data to Uu DRB based on the mapping relationship between PC5 DRB and Uu DRB configured or pre-configured by the base station (for example, mapping based on bearer identification, or mapping based on bearer/logical channel priority) ;
- Method 4 Relay UE maps the PC5 QoS flow data packet to the Uu QoS flow based on the PQI of the received remote UE PC5 data and the mapping relationship between the PQI and 5QI configured or pre-configured by the base station, and further configures the IP data according to the Uu DRB configuration It is transmitted to the base station through the corresponding relay Uu DRB.
- Step 4 The base station receives the remote UE user plane data forwarded by the relay UE, and further maps the data packet to the NG interface transmission tunnel of the PDU session of the relay UE and sends it to the core network element (UPF).
- UPF core network element
- the base station and the core network treat remote UE data as relay UE data for processing and forwarding during data communication.
- the base station receives the downlink data sent by the user plane function entity (UPF) to the relay UE, and maps the downlink data of the relay UE to the air interface bearer of the relay UE.
- the relay UE determines the location of the data packet based on the IP information and NAT sent to its own data packet. It belongs to the remote UE, and then forwards the downlink data to the corresponding remote UE through the PC5 DRB.
- UPF user plane function entity
- Step 1 Relay UE receives the downlink data sent by the base station, reads the IP information in the downlink data, determines which remote UE the data packet belongs to according to the stored NAT information, and then replaces the IP header in the data packet with the corresponding remote UE IP information.
- Step 2 The relay UE maps the data packet onto the PC5 bearer and sends it to the remote UE, including one of the following mapping methods:
- Relay UE maps the remote UE's data to the corresponding PC5 DRB according to the QoS rules derived by itself and the PC5 DRB configuration configured by the base station;
- mapping method two based on the 5QI to PQI mapping relationship configured by the base station and the PC5 DRB configuration, map the Uu QoS flow to the PC5 QoS flow, and then map it to the PC5 DRB;
- Mapping method 3 Relay UE maps remote UE data packets to PC5 DRB based on the mapping relationship between 5QI/QFI and PC5 DRB configured or pre-configured by the base station;
- mapping method five based on the mapping relationship between the air interface DRB and PC5 DRB configured or pre-configured by the base station (for example, bearer identification mapping, or bearer/logical channel priority mapping), the data packet is mapped to PC5 DRB;
- the remote UE data packet is mapped to the PC5 DRB with the same bearer/logical channel priority.
- Step 3 Remote UE receives downlink data from PC5 DRB.
- NR PC5 is used between the first communication node and the second communication node, and NR is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- the configuration performed by the base station is all the steps shown in FIG. 4 below.
- the remote UE does not need to establish an RRC connection with the gNB, nor does it establish a PDU session with the core network.
- the remote UE first searches for a suitable relay UE to relay and forward IP data for it. Then the remote UE in the RRC connected state establishes the uplink SL bearer based on the configuration of the base station, the RRC idle/inactive remote UE establishes the uplink SL bearer based on the SL bearer configuration in the system message; the UE without coverage is based on the pre-configuration
- the SL bearer configuration in the information performs uplink SL bearer establishment.
- the Relay UE After the Relay UE receives the relay request of the remote UE and the PC5 unicast connection request, it reports the QoS related information in the relay request and the PC5 unicast connection request to the base station, and establishes the air interface DRB and downlink according to the configuration information issued by the base station PC5 DRB, and forward the remote UE data packet according to the mapping relationship configured by the base station.
- FIG. 4 is a schematic diagram of an air interface data forwarding bearer establishment process when a relay UE forwards data for a remote UE according to an embodiment of the present application.
- the forwarding bearer establishment process in this embodiment includes S210-S2140.
- the IP data packet arrives.
- S220 derive the QoS information by itself.
- S2120 derive the QoS information by itself.
- the Remote UE establishes an L2 link connection with the relay UE through high-layer signaling. Then, the relay UE maps the PC5 QoS flow (for example, PQI, MFBR, and GFBR) obtained in the process of establishing the connection of the L2 link into a Uu QoS flow.
- the mapping method of PC5 QoS flow mapping to Uu QoS flow includes:
- the PQI in the PC5 QoS flow is mapped to exactly the same Uu 5QI. If no exactly the same Uu 5QI matches the PQI, then the 5QI value in the standard 5QI list that is closest to the QoS attribute represented by the PQI is selected.
- the GFBR and MFBR values in the Uu QoS flow are directly set to the GFBR and MFBR values in the PC5 QoS info.
- the Relay UE sends a PDU session establishment request (PDU session establishment request) according to the mapped Uu QoS flow to establish a new PDU session for the remote UE, which is dedicated to forwarding remote UE data packets, or sends a PDU session modification request (PDU session modification request). request) Modify the existing PDU session, which contains the mapped Uu QoS flow.
- the core network configures the corresponding PDU session according to the QoS in the PDU session establishment request or the PDU session modification request, and informs the base station of the configuration result.
- the base station configures the corresponding relay UE air interface DRB or relay UE to forward the remote UE according to the PDU session configuration result.
- the PC5 DRB of downlink data and the mapping relationship between PC5 data and air interface data when the relay UE forwards remote UE uplink and downlink data (for example, PC5 QoS flow to Uu QoS flow mapping, PC5 DRB to Uu DRB mapping).
- the base station can configure the mapping relationship between PC5 data and air interface data for the relay UE at the following points in time:
- the PC5 DRB information contains at least one of the following: bearer identifier, RLC mode, logical channel identifier, logical channel priority, RLC related configuration, As shown in Figure 4, S280, S290 and S2100.
- the base station configures an air interface data forwarding bearer (relay DRB) for the relay UE.
- the air interface data forwarding bearer configuration includes at least one of the following: data forwarding bearer indication, bearer identification, RLC mode, logical channel identification, logical channel group identification, logical channel priority, Prioritize the bit rate, bucket size duration, and RLC-related configuration.
- the base station configures the PC5 DRB for the relay UE.
- PC5 DRB is the downlink PC5 DRB (refers to the relay UE sending and the remote UE receiving).
- the configuration information includes the relevant parameters required for sidelink radio bearer (SLRB) transmission; RLC confirmation mode (Acknowledged Mode, AM) mode or Unacknowledged Mode (UM) mode, other RLC and logical channel related configuration information.
- SLRB sidelink radio bearer
- AM Acknowledged Mode
- UM Unacknowledged Mode
- the base station configures the mapping relationship between PC5 data and air interface data when the relay UE forwards the uplink and downlink data of the remote UE, and the mapping relationship includes one of the following:
- Mapping relationship 1 NR PC5 QoS flow and NR U QoS flow mapping configuration, the configuration includes at least one of the following: PC5 QoS info and U QoS info mapping, QFI and PFI mapping.
- the configuration includes at least one of the following: PC5 PFI and Uu DRB identification mapping, PC5 5QI and Uu DRB priority mapping, PC5 5QI and Uu logical channel priority Mapping.
- mapping relationship three NR PC5 DRB and NR Uu DRB mapping configuration
- the configuration includes at least one of the following: PC5 DRB priority and Uu DRB priority mapping, PC5 DRB identification and Uu DRB identification mapping, PC5 logical channel priority and Uu logical channel priority mapping.
- the base station sends the above configuration information to the relay UE through the RRC reconfiguration message.
- LTE PC5 is used between the first communication node and the second communication node
- NR is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- this embodiment is similar to the above-described embodiment in which NR PC5 is used between the first communication node and the second communication node, and the NR air interface is used between the first communication node and the third communication node.
- the difference is that The remote UE and the relay UE are connected by LTE sidelink, and the relay UE and the base station are connected by the NR air interface.
- uplink user plane data routing it includes steps one to four:
- Step 1 The Remote UE receives the IP data packet from the application layer, and transmits the IP data packet to the corresponding LTE PC5 logical channel according to the neighbor service packet priority (PPPP) value provided by upper.
- PPPP neighbor service packet priority
- the determination can be made in the following ways:
- Method 1 The Remote UE and the Relay UE negotiate which logical channel data is dedicated to forwarding the data of the Remote UE through the upper layer.
- logical channel data can be dedicated to forwarding the data of the Remote UE through the upper layer.
- it can be defined by means of LCID.
- Method 2 The data sent by the remote UE to the gNB and the data sent to the relay UE use different SRC ID and DST ID.
- the relay UE uses the ID contained in the MAC sub-header to indicate whether it is the data sent to itself or the data sent to the relay UE. Data that needs to be relayed.
- Step 2 Relay UE receives and parses the IP data packet sent by the remote UE, and judges whether the IP data packet needs to be relayed and forwarded to the gNB according to the ID in the MAC subheader or the negotiated logical channel, and if so, it needs to be relayed and forwarded
- the relay UE reads the IP information of the remote UE data packet, uses the NAT function to modify the IP header of the corresponding remote UE data packet and forwards it.
- Step 3 The Relay UE maps the IP data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- the Relay UE maps the IP data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- it includes one of the following mapping methods:
- Relay UE establishes an independent PDU session for data that needs to be relayed and forwarded, and transmits remote UE data on the DRB corresponding to the PDU session;
- the Relay UE uses its own PDU session to transmit the data of the remote UE.
- the relay UE can choose the following two mapping methods:
- Mapping method 1 One-to-one mapping, that is, the data of different remote UEs are sent through different Uu DRBs;
- Mapping method 2 Many-to-one mapping, that is, similar PPPP data packets of multiple remote UEs can be mapped to the same Uu DRB for transmission.
- Method 1 The relay UE does not distinguish the remote UE from which the IP data packet comes, and maps the IP data packets of multiple remote UEs to the relay NR Uu DRB according to the Uu UL QoS rules of the relay UE and the DRB configuration.
- the relay UE maps the forwarded data to the relay NR Uu DRB based on the mapping relationship between the LTE PC5 logical channel and NR Uu DRB configured or pre-configured by the base station (for example, the mapping of logical channel priority).
- the relay UE maps the LTE PC5 logical channel to the relay NR Uu DRB with the same logical channel priority.
- Method four Relay UE maps LTE PC5 data packets to Uu QoS flow based on the PPPP value of the received remote UE PC5 data and the mapping relationship between the base station configuration or pre-configured PPPP value and 5QI, and further configures the IP data according to Uu DRB configuration It is transmitted to the base station through the corresponding relay NR Uu DRB.
- Realy UE maps the LTE PC5 data packet to the relay NR Uu DRB based on the PPPP value of the received remote UE PC5 data and the mapping relationship between the base station configuration or pre-configured PPPP value and NR Uu DRB, and transmits it to the base station.
- Step 4 The base station receives the remote UE user plane data forwarded by the relay UE, and further maps the data packet to the NG interface transmission tunnel of the relay UE's PDU session and sends it to the user plane function (UPF) in the core network element.
- UPF user plane function
- Step 1 Relay UE receives the downlink data sent by the base station, reads the IP information in the downlink data, determines which remote UE the data packet belongs to according to the stored NAT information, and then replaces the IP header in the data packet with the corresponding remote UE IP information.
- Step 2 The relay UE maps the data packet onto the PC5 bearer and sends it to the remote UE, including one of the following mapping methods:
- Relay UE maps the NR Uu data stream to PC5 PPPP data stream based on the 5QI to PPPP mapping relationship configured by the base station, and then maps it to the LTE PC5 logical channel;
- Relay UE maps the remote UE data packet to the LTE PC5 logical channel based on the mapping relationship between the 5QI/QFI configured or pre-configured by the base station and the priority of the PC5 logical channel;
- Relay UE maps the data packet to the LTE PC5 logical channel based on the mapping relationship between the NR Uu DRB configured or pre-configured by the base station and the LTE PC5 logical channel (for example, bearer/logical channel priority mapping);
- Relay UE maps remote UE data packets to LTE PC5 logical channels with the same logical channel priority based on the NR Uu DRB bearer priority or logical channel priority configured by the base station or pre-configured.
- LTE PC5 is used between the first communication node and the second communication node
- NR is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- the configurations performed by the base station are all the steps shown in FIG. 6 below.
- Fig. 6 is a schematic diagram of an air interface data forwarding bearer establishment process when another relay UE forwards data for a remote UE according to an embodiment of the present application.
- the forwarding bearer establishment process in this embodiment includes S310-S3110.
- S330 A PDU session establishment request, or a PDU session modification request.
- the Remote UE establishes an L2 link connection with the relay UE through high-layer signaling. After that, the relay UE maps PPPP to Uu QoS info, and its mapping method is based on the PPPP-5QI mapping table configured or pre-configured by the base station.
- Relay UE sends PDU session establishment request according to the mapped Uu QoS flow to establish a new PDU session for the remote UE, which is dedicated to forwarding remote UE data packets, or sends PDU session modification request to modify the existing PDU session, which includes the mapping After the Uu QoS flow.
- the core network configures the corresponding PDU session according to the QoS information in the PDU session establishment request or PDU session modification request, and informs the base station of the configuration result.
- the base station configures the corresponding relay UE NR Uu DRB and relay UE forwarding the remote UE according to the PDU session configuration result.
- the mapping relationship between PC5 data and air interface data of downlink data for example, LTE PC5 PPPP-NR DRB priority mapping, LTE PC5 PPPP-NR 5QI mapping, LTE PC5 PPPP-NR logical channel priority mapping).
- the base station can configure the mapping relationship between PC5 data and air interface data for the relay UE at the following points in time:
- the PC5 logical channel information includes at least one of the following: RLC mode, logical channel identifier, logical channel priority, RLC related configuration, S360, S370 and S380 in Figure 6.
- Time point three after the Relay UE sends the SUI to the base station, as shown in S390, S3100, and S3110 in Figure 6.
- Relay UE configures LTE PC5 logical channels based on system broadcast or pre-configured information: data forwarding bearer indication, bearer identifier, RLC mode, logical channel identifier, logical channel group identifier, logical channel priority, priority guaranteed bit rate, bucket size duration , RLC related configuration.
- the base station configures the mapping relationship between the PC5 data and the air interface data of the relay UE forwarding the downlink data of the remote UE, and the mapping relationship includes one of the following:
- the configuration includes at least one of the following: PC5 PPPP and Uu DRB identification mapping, PC5 PPPP and Uu DRB priority mapping, PC5 PPPP and Uu logical channel priority Mapping.
- mapping relationship three LTE PC5 logical channel and NR Uu DRB mapping configuration
- the configuration includes at least one of the following: PC5 logical channel priority and Uu logical channel priority mapping, PC5 logical channel ID and Uu logical channel ID mapping.
- the base station sends the above configuration information to the relay UE through the RRC reconfiguration message.
- NR PC5 is used between the first communication node and the second communication node
- LTE is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- uplink user plane data routing it includes steps one to four:
- Step 1 The Remote UE receives the IP data packet from the application layer, and transmits the IP data packet to the relay UE through self-derived QoS processing rules and PC5 unicast bearer configuration.
- the determination can be made in the following ways:
- Method 1 Remote UE and relay UE negotiate to establish NR PC5 unicast bearer or logical channel through RRC signaling.
- the data in it is dedicated to forwarding remote UE data.
- NR PC5 DRB identification can be used to define which DRB is used for Forward the data of the remote UE or define which logical channel is used to forward the data of the remote UE through the LCID identification.
- Method 2 The data sent by the remote UE to the gNB and the data sent to the relay UE use different SRC ID and DST ID.
- the relay UE uses the ID contained in the MAC sub-header to indicate whether it is the data sent to itself or the data sent to the relay UE. Data that needs to be relayed.
- Step 2 Relay UE receives and parses the IP data packet sent by the remote UE, and judges whether the IP data packet needs to be relayed and forwarded to the gNB according to the ID in the MAC subheader, or the negotiated logical channel or bearer, if it is in progress Following the forwarded data, the relay UE reads the IP information of the remote UE data packet, uses the NAT function to modify the IP header of the corresponding remote UE data packet and forwards it.
- Step 3 The Relay UE maps the data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- the Relay UE maps the data packet to be forwarded to the relay air interface bearer between the base station and the base station and transmits it to the base station.
- it includes one of the following mapping methods:
- Relay UE establishes an independent PDU session for data that needs to be relayed and forwarded, and transmits remote UE data on the DRB corresponding to the PDU session;
- the Relay UE uses its own PDU session to transmit the data of the remote UE.
- the relay UE can choose the following two mapping methods:
- Mapping method 1 One-to-one mapping, that is, the data of different remote UEs are sent through different Uu DRBs;
- Mapping method 2 Many-to-one mapping, that is, data packets with similar QoS of multiple remote UEs can be mapped to the same Uu DRB for transmission.
- Relay UE does not distinguish the remote UE from which the IP data packet comes, and maps the IP data packets of multiple remote UEs to Uu DRB according to the uplink TFT and DRB configuration of the relay UE;
- Method 2 Relay UE maps the forwarded data to LTE based on the mapping relationship between NR PC5 DRB and LTE Uu DRB configured or pre-configured by the base station (for example, mapping based on bearer identification, or mapping based on bearer/logical channel priority) Uu DRB;
- Method 4 Relay UE based on the received remote UE NR PC5 data PQI and base station configuration or pre-configured NR PC5 PQI and LTE Uu QCI mapping relationship, the PC5 QoS flow data packets are mapped to the Uu QoS flow, and further according to the Uu DRB configuration , The data is transmitted to the base station through the corresponding relay LTE Uu DRB.
- Step 4 The base station receives the remote UE user plane data forwarded by the relay UE, and further maps the data packet to the PDU session of the relay UE and forwards it to the PDN gateway (Packet Data Network GateWay, PGW) in the core network element.
- PDN gateway Packet Data Network GateWay, PGW
- the base station and the core network treat remote UE data as relay UE data for processing and forwarding during data communication.
- the base station receives the downlink data sent to the relay UE, and maps the downlink relay UE data to the relay UE Uu bearer.
- the relay UE judges which remote UE the data packet belongs to according to the IP information and NAT of the data packet sent to itself, and then The data is forwarded to the corresponding remote UE through NR PC5 DRB.
- Step 1 Relay UE receives the downlink data sent by the base station, reads the IP information in the downlink data, determines which remote UE the data packet belongs to according to the stored NAT information, and then replaces the IP header in the data packet with the corresponding remote UE IP information.
- Step 2 The relay UE maps the data packet to the NR PC5 bearer and sends it to the remote UE. Specifically, it can include one of the following mapping methods:
- Relay UE maps the IP data of the remote UE to the corresponding PC5 DRB according to its own QoS rules and the PC5 DRB configuration configured by the base station;
- Relay UE maps the Uu QoS flow to PC5 QoS flow based on the mapping relationship between LTE Uu QCI to NR PC5 PQI configured by the base station and PC5 DRB configuration, and then maps it to PC5 DRB;
- Relay UE maps remote UE data packets to PC5 DRB based on the mapping relationship between the LTE Uu QCI/EPS bearer ID configured or pre-configured by the base station and the PC5 DRB priority;
- PC5 DRB is a bidirectional bearer, reverse mapping can be performed based on the uplink NR PC5 DRB to LTE Uu DRB mapping relationship;
- Mapping mode five based on the mapping relationship between LTE Uu DRB and NR PC5 DRB configured or pre-configured by the base station (for example, bearer identification mapping, or bearer/logical channel priority mapping), the data packet is mapped to PC5 DRB;
- the remote UE data packet is mapped to the PC5 DRB with the same bearer/logical channel priority.
- Step 3 Remote UE receives downlink data from NR PC5 DRB.
- NR PC5 is used between the first communication node and the second communication node
- LTE is used between the first communication node and the third communication node.
- the first communication node is a relay UE
- the second communication node is a remote UE
- the third communication node is a base station.
- the configurations performed by the base station are all the steps shown in FIG. 8 below.
- FIG. 8 is a schematic diagram of an air interface data forwarding bearer establishment process when another relay UE forwards data for a remote UE according to an embodiment of the present application.
- the forwarding bearer establishment process in this embodiment includes S410-S4140.
- S4120 derive the QoS information by itself.
- the Remote UE establishes an L2 link connection with the relay UE through high-layer signaling.
- the relay UE maps the NR PC5 QoS info (for example, PQI, MFBR, GFBR) obtained during the establishment of the L2 link to LTE Uu QoS info, and the mapping methods include:
- the Relay UE selects to send a PDU connection request (PDU connectivity request) according to the mapped UQoS info to establish a new PDU session for the remote UE, which is dedicated to forwarding the remote UE’s data packets, or sends a bearer resource modification request (Bearer resource modification request).
- PDU connectivity request PDU connectivity request
- Bearer resource modification request contains the mapped Uu QoS info.
- the core network configures the corresponding PDU session according to the QoS information in the Bearer resource modification request, and informs the base station of the configuration result.
- the base station configures the corresponding relay UE air interface DRB or relay according to the PDU session configuration result.
- the UE uses the PC5 to forward remote UE downlink data.
- DRB and the mapping relationship between PC5 data and air interface data when the relay UE forwards the uplink and downlink data of the remote UE for example, LTE PC5 QoS flow to NR Uu QoS flow mapping, LTE PC5 DRB to NRUu DRB mapping).
- the base station can configure the mapping relationship between PC5 data and air interface data for the relay UE at the following points in time:
- Time point 1 after the Relay UE sends a PDU connectivity request or Bearer resource modification request, as shown in S450, S460, and S470 in Figure 8.
- the relay UE reports NR PC5 DRB information, and the PC5 DRB information contains at least one of the following: bearer identifier, RLC mode, logical channel identifier, logical channel priority, RLC related configuration , As shown in S480, S490 and S4100 in Figure 8.
- Time point three after the Relay UE sends the SUI to the base station, as shown in Figure 8 S4110, S4120, S4130 and S4140.
- the base station configures an air interface data forwarding bearer (relay DRB) for the relay UE.
- the air interface data forwarding bearer configuration includes at least one of the following: data forwarding bearer indication, bearer identification, RLC mode, logical channel identification, logical channel group identification, logical channel priority, Prioritize the bit rate, bucket size duration, and RLC-related configuration.
- the base station configures PC5 DRB for the relay UE.
- PC5 DRB is the downlink PC5 DRB (that is, the relay UE sends and the remote UE receives).
- the configuration information includes the relevant parameters required for SLRB transmission; RLC AM mode or UM mode, other RLC and logical channel related configuration information .
- the base station configures the mapping relationship between PC5 data and air interface data when the relay UE forwards the uplink and downlink data of the remote UE, and the mapping relationship includes one of the following:
- Mapping relationship 1 NR PC5 QoS flow and LTE Uu QoS flow mapping configuration, the configuration includes at least one of the following: PC5 QoS info and Uu QoS info mapping, PQI and QCI mapping, PFI and EPS bearer ID mapping;
- Mapping relationship 2 NR PC5 QoS flow and LTE Uu DRB mapping configuration, the configuration includes at least one of the following: PC5 PFI and Uu DRB identification mapping, PC5 5QI and Uu DRB priority mapping, PC5 5QI and Uu logical channel priority The mapping;
- mapping relationship three NR PC5 DRB and LTE Uu DRB mapping configuration
- the configuration includes at least one of the following: PC5 DRB priority and Uu DRB priority mapping, PC5 DRB identification and Uu DRB identification mapping, PC5 logical channel priority and Uu logical channel priority mapping.
- the base station sends the above configuration information to the relay UE through the RRC reconfiguration message.
- the air interface link quality or the relay link quality of the UE deteriorates.
- the UE can choose to switch from the air interface connection to the relay connection.
- the connection is switched to an air interface connection, or switched from one relay UE to another relay UE to maintain UE-to-Network data transmission.
- how to maintain service continuity during the handover process is described.
- the scenario where a network link switch occurs includes one of the following:
- Scenario 1 Path conversion from direct air interface link to PC5/SL relay link: remote UE1 is in the RRC connection state and communicates through direct air interface link (direct Uu link), the Uu channel quality deteriorates, UE1 finds the relay UE, And the air interface path (Uu traffic) is switched to relay the UE to forward data to the network.
- the base station of the remote UE and the base station of the relay UE may be the same base station or different base stations.
- Scenario 2 Path switch from the PC5/SL relay link to the direct air interface link (path switch from PC5/SL relay link to direct Uu link): remote UE1 communicates with the network through the relay UE, and when UE1 enters the base station to cover and establish The RRC connection switches the services forwarded by the UE through the relay to direct transmission through the Uu port.
- the base station of the remote UE and the base station of the relay UE may be the same base station or different base stations.
- Scenario 3 Due to the occurrence of relay reselection, the relay UE connected to the remote UE has changed, and the service forwarded by the remote UE through the relay UE1 is switched to the service forwarded through the relay UE2.
- the base station of relay UE1 and the base station of relay UE2 may be the same base station or different base stations.
- Method 1 The base station configures link switching criteria or measurement configuration. When the remote UE meets the criteria, it notifies the base station or reports the measurement result to the base station according to the measurement report configuration, and the base station decides and instructs the handover.
- Method 2 The base station configures or pre-configures the link handover criterion.
- the remote UE meets the criterion, the remote UE performs the handover autonomously.
- the remote UE notifies the base station after the handover, and the link switching notification information reported by the remote UE to the base station includes at least one of the following: handover indication, handover service type, handover PDU session ID, handover DRB, handover QoS flow Information (such as QFI/5QI, etc.), relay UE identification.
- the link switching criterion includes at least one of the following: Uu link quality threshold (known, including a certain hysteresis value; in the case that the remote UE Uu link quality is lower than the threshold, link switching can be performed ), service type (for example, data of certain service types are transmitted through the PC5 interface), PC5 interface link quality threshold (for example, the quality of the PC5 interface link between the remote UE and the relay UE is higher than the threshold, the executable link Switch).
- Uu link quality threshold known, including a certain hysteresis value; in the case that the remote UE Uu link quality is lower than the threshold, link switching can be performed
- service type for example, data of certain service types are transmitted through the PC5 interface
- PC5 interface link quality threshold for example, the quality of the PC5 interface link between the remote UE and the relay UE is higher than the threshold, the executable link Switch.
- measurement configuration includes Uu measurement configuration and relay (PC5 interface between UE and relay) measurement configuration.
- the link switching criterion includes at least one of the following: Uu link quality threshold (known, including a certain hysteresis value; when the remote UE Uu link quality is higher than the threshold, link switching can be performed), PC5 link Quality threshold (for example, the link quality of the PC5 interface between the remote UE and the relay UE is lower than this threshold, and link switching can be performed), the relay UE Uu link quality threshold (optionally, the relay UE uses the PC5 RRC signaling message Inform the remote UE of its Uu link quality, or Uu link quality level indication (such as higher/lower threshold indication, good/medium/bad indication), PC5 interface resource pool CBR threshold (for example, PC5 interface resource pool CBR Or the average CBR of all resource pools is higher than the threshold, indicating that the relay link load is increasing and link switching can be performed), service type/service requirement (for example, certain service types/service requirements (such as delay requirements below a certain threshold)) Data is switched to Uu interface for transmission).
- Uu link quality threshold
- the Uu link quality is the measured Uu port reference signal received power/reference signal receiving quality (ReferenceSignalReceiving Power/ReferenceSignalReceiving Quality, RSRP/RSRQ, PC5 link quality is the measured SL discovery channel or communication channel RSRP/RSRQ/Received Signal Strength Indicator (RSSI).
- RSRP/RSRQ ReferenceSignalReceiving Power/ReferenceSignalReceiving Quality
- PC5 link quality is the measured SL discovery channel or communication channel RSRP/RSRQ/Received Signal Strength Indicator (RSSI).
- Scenario 1 For the remote UE to switch from air interface data communication to relay data communication, the remote UE needs to establish a new PC5 PDCP/RLC layer for relay data transmission. For the uplink data buffered in the remote UE waiting to be transmitted:
- the remote UE For the downlink data buffered in the gNB, since the remote UE uses L3 UE-to-Network relay after the handover, the remote UE does not establish an RRC connection with the gNB. Therefore, the downlink data buffered in the gNB cannot be switched to the relay link for transmission. To maintain service continuity, it is necessary to remotely complete the downlink data transmission before the UE handover.
- Scenario 2 For the remote UE to switch from relay data communication to air interface data communication, the remote UE needs to establish a new Uu PDCP/RLC layer for air interface data transmission. For the uplink data buffered in the remote UE waiting to be transmitted:
- the data packets in the Remote UE that have been mapped to PC5 QoS flow are based on the mapping configuration of the base station configuration or pre-configured Uu QoS flow to PC5 QoS flow, and the PC5 QoS flow data is mapped to the Uu QoS flow, or based on the base station configuration Or the pre-configured PC5 QoS flow to Uu DRB mapping configuration, which maps the PC5 QoS flow data to Uu DRB.
- the relay UE For the uplink data buffered in the relay UE, the relay UE continues to complete the uplink transmission.
- the remote UE uses L3 UE-to-Network relay before handover, the remote UE does not establish an RRC connection with the gNB, and the gNB cannot know the handover behavior of the remote UE. Therefore, the downlink data buffered in the gNB cannot Switch to the remote UE's Uu link for transmission and can only be discarded. For the same reason, for the downlink data buffered in the relay UE, the relay UE cannot transfer it to the air interface of the remote UE for transmission, so the transmission needs to be completed before the remote UE handover.
- the remote UE For the remote UE to switch from one relay UE1 to another relay UE2, the remote UE needs to establish a new PC5 PDCP/RLC layer for relay data transmission.
- the IP data packets sent to the relay UE1 and PC5 QoS flow data packets are then sent to the relay UE2; for the data that has been mapped to the PC5 DRB established with the relay UE1, first Decrypt according to the PDCP layer established with relay UE1, and then map to PC5 DRB with the same logical channel priority established with relay UE2 for transmission;
- relay UE1 For the uplink data buffered in relay UE1, relay UE1 continues to complete the uplink transmission;
- relay UE1 and relay UE2 do not communicate with each other, this part of the data can only be discarded for processing.
- the remote UE uses L3 UE-to-Network relay before handover, the remote UE does not establish an RRC connection with the gNB, and the gNB cannot know the handover behavior of the remote UE. Therefore, the downlink data buffered in the gNB cannot Switch to the remote UE's Uu link for transmission and can only be discarded.
- FIG. 9 is a structural block diagram of a communication device provided by an embodiment of the present application. This embodiment is applied to the first communication node. As shown in FIG. 9, the communication device in this embodiment includes: a first receiving module 510 and a first mapping module 520.
- the first receiving module 510 is configured to receive Internet Protocol IP data sent by the second communication node;
- the first mapping module 520 is configured to map the IP data to the relay bearer according to the first preset mapping manner, and transmit it to the third communication node.
- the communication device provided in this embodiment is configured to implement the communication method applied to the first communication node in the embodiment shown in FIG.
- the PDU session selected by the first communication node for the IP data includes one of the following:
- the IP data is transmitted using the PDU session of the first communication node itself.
- the first preset mapping manner includes one of the following: one-to-one mapping; many-to-one mapping;
- the one-to-one mapping is used to indicate that the IP data of different second communication nodes are sent through different relay air interface DRBs; the many-to-one mapping is used to indicate that the IP data of at least two second communication nodes are mapped to the same A relay air interface DRB transmits.
- the new air interface direct link interface NR PC5 when used between the first communication node and the second communication node, and the second communication node and the third communication node use the NR air interface, the many-to-one mapping , Including one of the following methods:
- the IP data is mapped to the relay air interface DRB;
- mapping the IP data to the relay air interface DRB based on the mapping relationship between the PC5 QoS flow and the NR air interface QoS flow configured 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.
- a new air interface direct link interface NR PC5 is used between the first communication node and the second communication node to connect, and the second communication node and the third communication node use NR air interface
- the method further includes:
- the third preset mapping method is used to map the PC5 QoS information obtained in advance to air interface QoS information.
- the third preset mapping method includes:
- the 5QI value closest to the QoS attribute represented by the PQI in the standard 5QI list is selected;
- the method further includes:
- the communication device further includes:
- the second receiving module is configured to receive the relay air interface DRB or PC5 DRB configured by the third communication node, and the mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: the mapping of PC5 QoS flow and air interface QoS flow, the mapping of PC5 DRB and air interface DRB, the mapping of PC5 QoS flow and air interface DRB, and the mapping of PC5 DRB and air interface QoS flow.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session establishment request or a PDU session modification request;
- the first communication node reports PC5 DRB information, and the PC5 DRB information includes at least one of the following: bearer identifier, RLC mode, logical channel identifier, logical channel priority, Radio link layer control protocol RLC related configuration;
- the first communication node After the first communication node sends the through link UE information SUI to the third communication node.
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: PC5 QoS information and air interface QoS information mapping, QFI and PC5 flow identification PFI mapping;
- the mapping between the PC5 QoS information and the air interface QoS information includes at least one of the following: mapping the 5QI in the air interface QoS flow to an identical PC5 PQI; in the case that the identical air interface 5QI does not match the PQI, the standard 5QI is selected The 5QI value in the list that is closest to the QoS attribute represented by the PQI; GFBR and MFBR in the air interface QoS flow are directly set to GFBR and MFBR in the PC5 QoS information;
- the mapping configuration includes at least one of the following: PC5 PFI and air interface DRB identification mapping, PC5 PQI and air interface DRB priority mapping, PC5 PQI and air interface logical channel priority mapping ;
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface DRB priority mapping, PC5 DRB identification and air interface DRB identification mapping, PC5 logical channel priority and air interface logic Channel priority mapping, PC5 logical channel identification and air interface logical channel identification;
- the configuration includes at least one of the following: PC5 DRB identification and Uu QFI mapping, PC5 DRB priority and Uu 5QI mapping, PC5 logical channel priority and Uu 5QI mapping.
- the many-to-one mapping includes the following One way:
- the IP data is mapped to the relay NR air interface DRB;
- the mapping relationship between PPPP and 5QI configured or pre-configured by the third communication node, and the NR air interface DRB configuration map the IP data of the second communication node To air interface QoS flow, and then map to relay NR air interface DRB;
- the IP data of the second communication node is mapped to the relay NR air interface DRB.
- the method before receiving the Internet Protocol IP data sent by the second communication node, the method further includes:
- the air interface DRB and the mapping of uplink and downlink data are established according to the configuration information fed back by the third communication node.
- the fourth preset mapping method is used to map the pre-acquired PPPP value to the NR air interface QoS information.
- the fourth preset mapping method includes:
- the method further includes:
- a PDU session modification request is sent to the third communication node, where the PDU session modification request is used to modify the current PDU session and carries the air interface QoS information obtained after the mapping.
- the communication method further includes: receiving a relay air interface DRB configured by the third communication node, and a mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: the mapping of PC5 logical channel and air interface DRB, the mapping of PC5 PPPP data flow and air interface DRB, and the mapping of PC5 PPPP data flow and Uu QoS flow.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session establishment request or a PDU session modification request;
- the first communication node After the first communication node establishes a relay connection with the second communication node, the first communication node reports LTE PC5 logical channel information.
- the PC5 logical channel information includes at least one of the following: RLC mode, logical channel identifier, logical channel priority, RLC related configuration;
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: LTE PC5 logical channel identification and NR air interface DRB identification mapping, LTE PC5 logical channel priority and NR air interface DRB priority mapping , LTE PC5 logical channel priority and NR air interface logical channel priority mapping, LTE PC5 logical channel identification and NR air interface logical channel identification mapping;
- the mapping configuration includes at least one of the following: LTE PPPP value and air interface DRB priority mapping configuration, LTE PPPP value and air interface logical channel priority mapping;
- the mapping configuration includes at least one of the following: LTE PPPP value and NR air interface QoS information mapping configuration;
- mapping configuration of the LTE PC5 PPPP value and the NR air interface QoS information where the mapping configuration includes at least one of the following: a mapping table of the LTE PC5 PPPP value and the NR air interface 5QI.
- the many-to-one mapping includes one of the following methods one:
- IP data is mapped to LTE air interface DRB;
- mapping the IP data to the LTE air interface DRB based on the mapping relationship between the NR PC5 QoS flow configured or pre-configured by the third communication node and the LTE air interface DRB;
- the IP data is mapped to the LTE air interface DRB.
- the fifth preset mapping method is used to obtain the NR PC5 QoS information is mapped to LTE air interface QoS information.
- the fifth preset mapping method includes:
- the method further includes:
- a PDU session modification request is sent to the third communication node, where the PDU session modification request is used to modify the current PDU session and carries the air interface QoS information obtained after the mapping.
- the communication device further includes: a third receiving module configured to receive the relay air interface DRB configured by the third communication node and the mapping relationship between PC5 data and air interface data.
- the mapping relationship between PC5 data and air interface data includes the following One of the above: NR PC5 QoS and LTE air interface EPS bearer mapping, NR PC5 DRB and LTE air interface DRB mapping, NR PC5 QoS flow and LTE air interface DRB mapping, NR PC5 DRB and LTE air interface EPS bearer mapping.
- the third communication node is configured for the first communication node
- the time period of the mapping relationship between PC5 data and air interface data includes one of the following:
- the first communication node After the first communication node sends a PDU session connection request or a bearer resource modification request;
- the first communication node reports NR PC5 DRB information, and NR PC5 DRB information includes at least one of the following: bearer identifier, RLC mode, logical channel identifier, Logical channel priority, RLC related configuration;
- the mapping relationship between PC5 data and air interface data includes One of the following:
- the mapping configuration includes at least one of the following: the mapping between PC5 QFI and air interface EPS bearer identifier, and the mapping between NR PC5 QoS Info and LTE air interface QoS Info;
- the mapping of the PC5 QoS Info and the air interface QoS Info includes at least one of the following: mapping the QCI of the air interface QoS flow to an identical PC5 PQI; in the case that the identical air interface QCI does not match the PQI, select the standard QCI list The QCI value closest to the QoS attribute represented by the PQI; GFBR and MFBR in the air interface QoS flow are directly set to GFBR and MFBR in the PC5 QoS Info;
- the mapping configuration includes at least one of the following: PC5 PFI and air interface DRB identification mapping, PC5 PQI and air interface DRB priority mapping, PC5 PQI and air interface logical channel priority mapping ;
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface DRB priority mapping, PC5 DRB identification and air interface DRB identification mapping, PC5 logical channel priority and air interface logic Channel priority mapping, mapping between NR PC5 logical channel identification and LTE air interface logical channel identification;
- the mapping configuration includes at least one of the following: PC5 DRB priority and air interface EPS bearer QCI mapping, PC5 DRB identification and air interface EPS bearer identification mapping, PC5 logical channel and Air interface EPS bearer QCI mapping.
- the switching mode of the second communication node includes one of the following: switching from the air interface connection to the relay connection ; Switch from the relay connection to the air interface connection; switch from the first first communication node connection to the second first communication node connection.
- the uplink data buffered in the second communication node waiting to be transmitted includes one of the following connection modes:
- the air interface QoS flow is mapped to the PC5 QoS flow based on the configuration or pre-configured air interface QoS flow to PC5 QoS flow mapping configuration of the third communication node, or based on the first 3.
- the mapping configuration of the communication node configuration or pre-configured air interface QoS flow to PC5DRB, and the air interface QoS flow is mapped to PC5 DRB;
- the IP data For the IP data that has been mapped to the air interface DRB in the second communication node, the IP data is decrypted according to the air interface PDCP, and the air interface DRB is mapped to PC5 DRB based on the configuration or pre-configured air interface DRB to PC5 DRB mapping configuration of the third communication node .
- the uplink data buffered in the second communication node and waiting for transmission includes one of the following connection modes:
- the PC5 QoS flow is mapped to the air interface QoS flow based on the configuration or pre-configured air interface QoS flow to PC5 QoS flow mapping configuration of the third communication node, or based on the first Three communication node configuration or pre-configured PC5 QoS flow to air interface DRB mapping configuration, and PC5 QoS flow is mapped to air interface DRB;
- IP data that has been mapped to PC5 DRB in the second communication node decrypt the IP data according to PC5 PDCP, and map the PC5 DRB to the air interface DRB based on the PC5 DRB to air interface DRB mapping configuration configured or pre-configured by the third communication node .
- the switching mode of the second communication node when the switching mode of the second communication node is from the first first communication node to the second first communication node, for the uplink data buffered in the second communication node waiting to be transmitted, Including one of the following connection methods:
- the IP data that has been mapped to the PC5 DRB established with the first first communication node is decrypted according to the PDCP layer established with the second first communication node, and mapped to the IP data established with the second first communication node.
- the first first communication node continues to complete the uplink transmission.
- the link switching decision includes one of the following:
- the link switching criterion is configured or pre-configured through the third communication node.
- the link switching criterion includes at least one of the following:
- Air interface link quality threshold for service type; PC5 interface link quality threshold;
- Measurement configuration including: air interface measurement configuration and relay measurement configuration.
- the link switching criterion includes at least one of the following:
- Air interface link quality threshold PC5 interface link quality threshold; first communication node air interface link quality threshold; PC5 interface resource pool CBR threshold; service type/service requirement.
- Fig. 10 is a structural block diagram of another communication device provided by an embodiment of the present application.
- the communication device in this embodiment includes: a fourth receiving module 610, a determining module 620, and a second mapping module 630;
- the fourth receiving module 610 is configured to receive downlink data sent by the third communication node
- the determining module 620 is configured to determine the second communication node to which it belongs according to the IP address in the downlink data
- the second mapping module 630 is configured to map the downlink data to PC5 data according to a second preset mapping manner, and transmit it to the second communication node to which it belongs.
- the communication device provided in this embodiment is configured to implement the communication method applied to the first communication node in the embodiment shown in FIG.
- the The second preset mapping method includes one of the following:
- the air interface QoS flow is mapped to the PC5 QoS flow, and then to the PC5 DRB;
- the downlink data is mapped to the PC5 DRB.
- the The second preset mapping method includes one of the following:
- the IP data of the second communication node is mapped to the LTE PC5 logical channel.
- the The second preset mapping method includes one of the following:
- mapping the IP data to the NR PC5 DRB based on the mapping relationship between the LTE air interface DRB and NR PC5 DRB configured or pre-configured by the third communication node;
- the IP data is mapped to the LTE air interface DRB.
- FIG. 11 is a schematic structural diagram of a device provided by an embodiment of the present application.
- the device provided by the present application includes: a processor 710, a memory 720, and a communication module 730.
- the number of processors 710 in the device may be one or more.
- One processor 710 is taken as an example in FIG. 11.
- the number of memories 720 in the device may be one or more, and one memory 720 is taken as an example in FIG. 11.
- the processor 710, the memory 720, and the communication module 730 of the device may be connected through a bus or in other ways. In FIG. 11, the connection through a bus is taken as an example.
- the device is the first communication node.
- the memory 720 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the device of any embodiment of the present application (for example, the first receiving module in the communication device). And the first mapping module).
- the memory 720 may include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device, and the like.
- the memory 720 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the memory 720 may further include a memory remotely provided with respect to the processor 710, and these remote memories may be connected to the device through a network.
- networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the communication module 730 is configured to perform a communication connection between the first communication node and the second communication node for data communication and signal communication.
- the above-provided device can be configured to execute the communication method applied to the first communication node provided by any of the above-mentioned embodiments, and has corresponding functions and effects.
- An embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions When executed by a computer processor, they are used to execute a communication method applied to a first communication node.
- the method includes: receiving a second communication node. Internet Protocol IP data sent by the communication node; the IP data is mapped to the relay bearer according to the first preset mapping mode, and transmitted to the third communication node.
- the embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to execute a communication method applied to a first communication node.
- the method includes: receiving a third communication node. Downlink data sent by a communication node; determine the second communication node to which it belongs according to the IP address in the downlink data; map the downlink data to PC5 data according to a second preset mapping method, and transmit it to the second communication node to which it belongs .
- user equipment encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
- Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
- ISA Instruction Set Architecture
- the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
- Computer-readable media may include non-transitory storage media.
- the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
- DSP Digital Signal Processors
- ASICs application specific integrated circuits
- FPGA Field-Programmable Gate Array
- processors based on multi-core processor architecture such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
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Abstract
Description
Claims (42)
- 一种通信方法,应用于第一通信节点,包括:接收第二通信节点发送的网际协议IP数据;按照第一预设映射方式将所述IP数据映射至中继承载,并将映射后的IP数据传输至第三通信节点。
- 根据权利要求1所述的方法,其中,所述第一通信节点为所述IP数据选择的协议数据单元PDU会话,包括下述之一:为所述IP数据建立独立的PDU会话,并在所述PDU会话对应的数据无线承载DRB上传输所述IP数据;采用所述第一通信节点自身的PDU会话传输所述IP数据。
- 根据权利要求1所述的方法,其中,针对至少两个第二通信节点连接到同一个所述第一通信节点的情况,所述第一预设映射方式,包括下述之一:一对一映射;多对一映射;其中,所述一对一映射,用于指示不同第二通信节点的IP数据分别通过不同的中继空口DRB进行发送;所述多对一映射,用于指示至少两个第二通信节点的IP数据映射至同一个中继空口DRB进行发送。
- 根据权利要求3所述的方法,其中,在所述第一通信节点与所述至少两个第二通信节点之间采用新空口直通链路接口NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述多对一映射,包括下述方式之一:根据所述第一通信节点的空口服务质量QoS规则和DRB配置,将所述至少两个第二通信节点的IP数据映射至中继空口DRB;基于所述第三通信节点配置或预配置的PC5 DRB与空口DRB的映射关系,将所述IP数据映射至中继空口DRB;基于所述第三通信节点配置或预配置的PC5 QoS流与NR空口QoS流的映射关系和NR空口DRB的配置,将所述IP数据映射至中继空口DRB;基于所述第三通信节点配置或预配置的PC5 QoS流与空口DRB的映射关系,将所述IP数据映射至中继空口DRB。
- 根据权利要求1所述的方法,其中,在所述第一通信节点与所述第二通信 节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,在所述接收第二通信节点发送的IP数据之前,还包括:接收所述第二通信节点的中继连接请求或PC5单播连接请求;根据所述第三通信节点反馈的配置信息建立空口DRB和下行PC5 DRB,以及上下行数据的映射。
- 根据权利要求5所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,在所述第一通信节点和所述第二通信节点建立层2链路连接的过程中,采用第三预设映射方式将预先获取的PC5 QoS信息映射为空口QoS信息。
- 根据权利要求6所述的方法,其中,所述第三预设映射方式,包括:将PC5 QoS流中的直通链路接口上的第五代移动通信技术服务质量标识PQI映射为完全相同的空口第五代移动通信技术服务质量标识5QI;在所述完全相同的空口5QI未匹配所述PQI的情况下,选择标准5QI列表中最接近所述PQI所表示QoS属性的5QI值;将空口QoS流中的保证流比特率GFBR值和最大流比特率MFBR值设置为所述PC5 QoS流中的GFBR值和MFBR值。
- 根据权利要求6或7所述的方法,其中,在所述将预先获取的PC5 QoS信息映射为空口QoS信息之后,还包括:根据空口QoS流向所述第三通信节点发送PDU会话建立请求,所述PDU会话建立请求用于转发所述第二通信节点的IP数据;或者,向所述第三通信节点发送PDU会话修改请求,所述PDU会话修改请求用于修改当前的PDU会话,并且携带映射后得到的空口QoS信息。
- 根据权利要求5所述的方法,还包括:接收所述第三通信节点配置的中继空口DRB或PC5 DRB,以及PC5数据和空口数据的映射关系。
- 根据权利要求9所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用 NR空口连接的情况下,所述PC5数据和空口数据的映射关系包括下述之一:PC5 QoS流与空口QoS流的映射,PC5 DRB与空口DRB的映射,PC5 QoS流与空口DRB的映射,PC5 DRB与空口QoS流的映射。
- 根据权利要求9所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述第三通信节点为所述第一通信节点配置所述PC5数据和空口数据的映射关系的时间段,包括下述之一:在所述第一通信节点发送PDU会话建立请求或PDU会话修改请求之后;在所述第一通信节点与所述第二通信节点建立PC5无线资源控制RRC连接之后,所述第一通信节点上报PC5 DRB信息,所述PC5 DRB信息包括下述至少之一:承载标识、无线链路层控制协议RLC模式、逻辑信道标识、逻辑信道优先级、RLC相关配置;在所述第一通信节点发送直通链路用户设备信息SUI至所述第三通信节点之后。
- 根据权利要求4、9或10所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,PC5数据和空口数据的映射关系,包括下述之一:NR PC5 QoS流与NR空口QoS流的映射配置,所述NR PC5 QoS流与NR空口QoS流的映射配置包括下述至少之一:PC5 QoS信息与空口QoS信息的映射、服务质量流标识QFI与PC5流标识PFI的映射;所述PC5 QoS信息与空口QoS信息的映射包括以下至少之一:将空口QoS流中的5QI映射为完全相同的PC5 PQI;在所述完全相同的空口5QI未匹配PQI的情况下,选择标准5QI列表中最接近PQI所表示QoS属性的5QI值;将空口QoS流中的GFBR值和MFBR值直接设置为PC5 QoS信息中的GFBR值和MFBR值;将PC5 QoS流中的PQI映射为完全相同的空口5QI;在所述完全相同的空口5QI未匹配PQI的情况下,选择标准PQI列表中最 接近5QI所表示QoS属性的PQI值;将PC5 QoS流中的GFBR值和MFBR值直接设置为Uu QoS信息中的GFBR值和MFBR值;NR PC5 QoS流与NR空口DRB的映射配置,所述NR PC5 QoS流与NR空口DRB的映射配置包括下述至少之一:PC5 PFI与空口DRB标识的映射、PC5 PQI与空口DRB优先级的映射、PC5 PQI与空口逻辑信道优先级的映射;NR PC5 DRB与NR空口DRB的映射配置,所述NR PC5 DRB与NR空口DRB的映射配置包括下述至少之一:PC5 DRB优先级与空口DRB优先级的映射、PC5 DRB标识与空口DRB标识的映射、PC5逻辑信道优先级与空口逻辑信道优先级的映射,PC5逻辑信道标识与空口逻辑信道标识的映射;NR PC5 DRB与NR Uu QoS流的映射配置,所述NR PC5 DRB与NR Uu QoS流的映射配置包含以下至少之一:PC5 DRB标识与Uu QFI的映射,PC5 DRB优先级与Uu 5QI的映射,PC5逻辑信道优先级与Uu 5QI的映射。
- 根据权利要求3所述的方法,其中,在所述第一通信节点与所述至少两个第二通信节点之间采用长期演进LTE PC5连接,且所述至少两个第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述多对一映射,包括下述方式之一:根据所述第一通信节点的空口上行QoS规则和DRB配置,将所述至少两个第二通信节点的IP数据映射至中继NR空口DRB;基于所述第三通信节点配置或预配置的LTE PC5逻辑信道与NR空口DRB的映射关系,将所述IP数据映射至中继NR空口DRB;基于接收的第二通信节点的PC5数据的近邻服务包优先级PPPP值,所述第三通信节点配置或预配置的PPPP与5QI的映射关系以及NR空口DRB配置,将所述第二通信节点的IP数据映射至空口QoS流,并映射到中继NR空口DRB;基于接收的第二通信节点的PC5数据的PPPP值,以及所述第三通信节点配置或预配置的PPPP值与NR空口DRB的映射关系,将所述第二通信节点的IP数据映射至中继NR空口DRB。
- 根据权利要求1所述的方法,其中,在所述第一通信节点与所述第二通 信节点之间采用LTE PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,在所述接收第二通信节点发送的IP数据之前,还包括:接收所述第二通信节点的中继连接请求或PC5单播连接请求;根据所述第三通信节点反馈的配置信息建立空口DRB,以及上下行数据的映射。
- 根据权利要求14所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用LTE PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,在所述第一通信节点和所述第二通信节点建立层2链路连接的过程中,采用第四预设映射方式将预先获取的PC5 PPPP值映射为NR空口QoS信息。
- 根据权利要求15所述的方法,其中,所述第四预设映射方式,包括:基于所述第三通信节点配置或预配置的PPPP-5QI映射表。
- 根据权利要求15或16所述的方法,其中,在所述将预先获取的PC5 PPPP值映射为NR空口QoS信息之后,还包括:根据所述NR空口QoS信息向所述第三通信节点发送PDU会话建立请求,所述PDU会话建立请求用于转发所述第二通信节点的IP数据;或者,向所述第三通信节点发送PDU会话修改请求,所述PDU会话修改请求用于修改当前的PDU会话,并且携带映射后得到的NR空口QoS信息。
- 根据权利要求14所述的方法,还包括:接收所述第三通信节点配置的中继空口DRB,以及PC5数据和空口数据的映射关系。
- 根据权利要求18所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用LTE PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述PC5数据和空口数据的映射关系包括下述之一:PC5逻辑信道与空口DRB的映射,PC5 PPPP数据流与空口DRB的映射,PC5 PPPP数据流与Uu QoS流的映射。
- 根据权利要求19所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用LTE PC5连接,且所述第二通信节点与所述第三通信节点采用 NR空口连接的情况下,所述第三通信节点为所述第一通信节点配置所述PC5数据和空口数据的映射关系的时间段,包括下述之一:在所述第一通信节点发送PDU会话建立请求或PDU会话修改请求之后;在所述第一通信节点与所述第二通信节点建立中继连接之后,所述第一通信节点上报LTE PC5逻辑信道信息,所述LTE PC5逻辑信道信息包括下述至少之一:RLC模式、逻辑信道标识、逻辑信道优先级、RLC相关配置;在所述第一通信节点发送SUI至所述第三通信节点之后。
- 根据权利要求13、19或20所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用LTE PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述PC5数据和空口数据的映射关系,包括下述之一:LTE PC5逻辑信道与NR空口DRB的映射配置,所述映射配置包括下述至少之一:LTE PC5逻辑信道标识与NR空口DRB标识的映射,LTE PC5逻辑信道优先级与NR空口DRB优先级的映射,LTE PC5逻辑信道优先级与NR空口逻辑信道优先级的映射,LTE PC5逻辑信道标识与NR空口逻辑信道标识的映射;LTE PC5 PPPP流与NR空口DRB的映射配置,所述映射配置包括下述至少之一:LTE PPPP值与空口DRB优先级的映射配置,LTE PPPP值与空口逻辑信道优先级的映射;LTE PC5 PPPP流与NR空口QoS流的映射配置,所述LTE PC5 PPPP流与NR空口QoS流的映射配置包括下述至少之一:LTE PPPP值与NR空口QoS信息的映射配置;LTE PC5 PPPP值与NR空口QoS信息的映射配置,所述LTE PC5 PPPP值与NR空口QoS信息的映射配置包括下述至少之一:LTE PC5 PPPP值与NR空口5QI的映射表。
- 根据权利要求3所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,所述多对一映射,包括下述方式之一:根据所述第一通信节点的上行业务流模板TFT和DRB配置,将至少两个所述第二通信节点的IP数据映射至LTE空口DRB;基于所述第三通信节点配置或预配置的NR PC5 DRB或LTE空口DRB的映射关系,将所述IP数据映射至LTE空口DRB;基于所述第三通信节点配置或预配置的NR PC5 QoS流与LTE空口DRB的映射关系,将所述IP数据映射至LTE空口DRB;基于所述第三通信节点配置或预配置的NR PC5 QoS流与LTE空口演进分组系统EPS承载的映射关系以及LTE空口DRB的配置,将所述IP数据映射至LTE空口DRB。
- 根据权利要求22所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,采用第五预设映射方式将预先获取的NR PC5 QoS信息映射为LTE空口QoS信息。
- 根据权利要求23所述的方法,其中,所述第五预设映射方式,包括:将NR PC5 QoS流中的PQI映射为完全相同的LTE空口5QI;在所述完全相同的LTE空口5QI未匹配PQI的情况下,选择标准LTE服务质量分类标识QCI列表中最接近PQI所表示QoS属性的QCI值;将空口QoS流中的GFBR值和MFBR值设置为PC5 QoS流中的GFBR值和MFBR值。
- 根据权利要求21所述的方法,其中,在所述将预先获取的PC5 PPPP值映射为NR空口QoS信息之后,还包括:根据所述NR空口QoS信息向所述第三通信节点发送PDU会话建立请求,所述PDU会话建立请求用于转发所述第二通信节点的IP数据;或者,向所述第三通信节点发送PDU会话修改请求,所述PDU会话修改请求用于修改当前的PDU会话,并且携带映射后得到的NR空口QoS信息。
- 根据权利要求22所述的方法,还包括:接收所述第三通信节点配置的中继空口DRB,以及PC5数据和空口数据的映射关系。
- 根据权利要求26所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,所述PC5数据和空口数据的映射关系包括下述之一:NR PC5 QoS与LTE空口EPS承载映射,NR PC5 DRB与LTE空口DRB映射,NR PC5 QoS流与LTE空口DRB映射,NR PC5 DRB与LTE空口EPS承载映射。
- 根据权利要求27所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,所述第三通信节点为所述第一通信节点配置所述PC5数据和空口数据的映射关系的时间段,包括下述之一:在所述第一通信节点发送PDU会话连接请求或承载资源修改请求之后;在所述第一通信节点与所述第二通信节点建立PC5 RRC连接之后,所述第一通信节点上报NR PC5 DRB信息,所述NR PC5 DRB信息包括下述至少之一:承载标识、RLC模式、逻辑信道标识、逻辑信道优先级、RLC相关配置;在所述第一通信节点发送SUI至所述第三通信节点之后。
- 根据权利要求22、27或28所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,PC5数据和空口数据的映射关系,包括下述之一:NR PC5 QoS流与LTE空口EPS承载的映射配置,所述NR PC5 QoS流与LTE空口EPS承载的映射配置包括下述至少之一:PC5 QFI与空口EPS承载标识之间的映射,NR PC5 QoS信息与LTE空口QoS信息之间的映射;所述NR PC5 QoS信息与LTE空口QoS信息的映射包括以下至少之一:将空口QoS流的QCI映射为完全相同的PC5 PQI;在所述完全相同的空口QCI未匹配PQI的情况下,选择标准QCI列表中最接近PQI所表示QoS属性的QCI值;将空口QoS流中的GFBR值和MFBR值直接设置为PC5 QoS信息中的GFBR值和MFBR值;将PC5 QoS流中的PQI映射为完全相同的空口QCI;在所述完全相同的空口QCI未匹配PQI的情况下,选择标准PQI列表中最接近QCI所表示QoS属性的PQI值;将PC5 QoS流中的GFBR值和MFBR值直接设置为Uu QoS信息中的GFBR值和MFBR值;NR PC5 QoS流与LTE空口DRB的映射配置,所述映射配置包括下述至少之一:PC5 PFI与空口DRB标识的映射、PC5 PQI与空口DRB优先级的映射、PC5 PQI与空口逻辑信道优先级的映射;NR PC5 DRB与LTE空口DRB的映射配置,所述映射配置包括下述至少之一:PC5 DRB优先级与空口DRB优先级的映射、PC5 DRB标识与空口DRB标识的映射、PC5逻辑信道优先级与空口逻辑信道优先级的映射,NR PC5逻辑信道标识与LTE空口逻辑信道标识的映射;NR PC5 DRB与LTE空口EPS承载的映射配置,所述映射配置包括下述至少之一:PC5 DRB优先级与空口EPS承载QCI的映射,PC5 DRB标识与空口EPS承载标识的映射,PC5逻辑信道与空口EPS承载QCI的映射。
- 根据权利要求1所述的方法,其中,在所述第二通信节点的空口链路质量或中继链路质量出现故障的情况下,所述第二通信节点的切换方式,包括下述之一:从空口连接切换为中继连接;从中继连接切换为空口连接;从第一个第一通信节点连接切换为第二个第一通信节点连接。
- 根据权利要求30所述的方法,其中,在所述第二通信节点的切换方式为从所述空口连接切换为所述中继连接的情况下,对于缓存在所述第二通信节点中等待传输的上行数据,包括下述连接方式之一:将所述第二通信节点中未处理的IP数据,直接切换到中继链路传输;针对所述第二通信节点中已映射至空口QoS流的IP数据,基于所述第三通信节点配置或预配置的空口QoS流至PC5 QoS流的映射配置,将空口QoS流映射为PC5 QoS流,或者,基于所述第三通信节点配置或预配置的空口QoS流至PC5 DRB的映射配置,将空口QoS流映射为PC5 DRB;针对所述第二通信节点中已映射至空口DRB的IP数据,根据空口分组数据会聚协议PDCP对所述IP数据解密,并基于所述第三通信节点配置或预配置 的空口DRB至PC5 DRB的映射配置,将空口DRB映射为PC5 DRB。
- 根据权利要求30所述的方法,其中,在所述第二通信节点的切换方式为从所述中继连接切换为所述空口连接的情况下,对于缓存在所述第二通信节点中等待传输的上行数据,包括下述连接方式之一:将所述第二通信节点中未处理的IP数据,直接切换到空口链路传输;针对所述第二通信节点中已映射至PC5 QoS流的IP数据,基于所述第三通信节点配置或预配置的空口QoS流至PC5 QoS流的映射配置,将PC5 QoS流映射为空口QoS流,或者,基于所述第三通信节点配置或预配置的PC5 QoS流至空口DRB的映射配置,将PC5 QoS流映射为空口DRB;针对所述第二通信节点中已映射至PC5 DRB的IP数据,根据PC5 PDCP对所述IP数据解密,并基于所述第三通信节点配置或预配置的PC5 DRB至空口DRB的映射配置,将PC5 DRB映射为空口DRB。
- 根据权利要求30所述的方法,其中,在所述第二通信节点的切换方式为从所述第一个第一通信节点切换为所述第二个第一通信节点的情况下,对于缓存在所述第二通信节点中等待传输的上行数据,包括下述连接方式之一:将所述第二通信节点发送至所述第一个第一通信节点的IP数据和PC5 QoS流数据转发至所述第二个第一通信节点;针对已映射到与所述第一个第一通信节点建立的PC5 DRB中的IP数据,按照与所述第二个第一通信节点建立的PDCP层解密,并将所述PDCP层解密后的IP数据映射到与所述第二个第一通信节点建立的具有相同逻辑信道优先级的PC5 DRB;针对已缓存在所述第一个第一通信节点的IP数据,继续由所述第一个第一通信节点完成上行传输。
- 根据权利要求30所述的方法,其中,在所述第二通信节点的空口链路质量或中继链路质量出现故障的情况下,链路切换决策,包括下述之一:通过所述第三通信节点配置链路切换准则或测量配置;通过所述第三通信节点配置或预配置链路切换准则。
- 根据权利要求34所述的方法,其中,在所述第二通信节点的切换方式为 从所述空口连接切换为所述中继连接的情况下,所述链路切换准则包括下述至少之一:空口链路质量阈值;业务类型;PC5接口链路质量阈值;所述测量配置,包括:空口测量配置和中继测量配置。
- 根据权利要求34所述的方法,其中,在所述第二通信节点的切换方式为从所述中继连接切换为所述空口连接的情况下,所述链路切换准则包括下述至少之一:空口链路质量阈值;PC5接口链路质量阈值;第一通信节点的空口链路质量阈值;PC5接口资源池信道忙碌率CBR阈值;业务类型或业务需求。
- 一种通信方法,应用于第一通信节点,包括:接收第三通信节点发送的下行数据;根据所述下行数据中的网际协议IP地址确定所属的第二通信节点;按照第二预设映射方式将所述下行数据映射为直通链路接口PC5数据,并将所述PC5数据传输至所属的第二通信节点。
- 根据权利要求37所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用新空口直通链路接口NR PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述第二预设映射方式,包括下述之一:根据所述第一通信节点自身推导的服务质量QoS规则和所述第三通信节点配置的直通链路接口数据无线承载PC5 DRB配置,将所述下行数据映射至PC5 DRB;在PC5 DRB为双向承载的情况下,基于上行PC5 DRB到空口DRB的映射关系进行反向映射;基于所述第三通信节点配置的NR Uu QoS流到PC5 QoS流的映射关系和PC5 DRB配置,将空口QoS流映射为PC5 QoS流,再映射至PC5 DRB;基于所述第三通信节点配置或者预配置的NR Uu QoS流到PC5 DRB的映射关系,将所述下行数据映射至PC5 DRB;基于所述第三通信节点配置或者预配置的空口DRB与PC5 DRB的映射关 系,将所述下行数据映射至PC5 DRB。
- 根据权利要求37所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用长期演进LTE PC5连接,且所述第二通信节点与所述第三通信节点采用NR空口连接的情况下,所述第二预设映射方式,包括下述之一:基于所述第三通信节点配置或预配置的NR空口DRB与LTE PC5逻辑信道的映射关系,将所述第二通信节点的IP数据映射至LTE PC5逻辑信道;基于所述第三通信节点配置的或预配置的NR空口DRB与LTE PC5近邻服务包优先级PPPP值之间的映射关系,将所述第二通信节点的IP数据映射至LTE PC5逻辑信道;基于所述第三通信节点配置或预配置的NR空口QoS流与LTE PC5 PPPP数据流的映射关系,将所述第二通信节点的IP数据映射至LTE PC5逻辑信道。
- 根据权利要求37所述的方法,其中,在所述第一通信节点与所述第二通信节点之间采用NR PC5连接,且所述第二通信节点与所述第三通信节点采用LTE空口连接的情况下,所述第二预设映射方式,包括下述之一:根据所述第一通信节点自身推导的QoS规则和所述第三通信节点配置的PC5 DRB配置,将所述下行数据映射至NR PC5 DRB;基于所述第三通信节点配置或预配置的LTE空口DRB与NR PC5 DRB的映射关系,将所述IP数据映射至NR PC5 DRB;基于所述第三通信节点配置或预配置的LTE空口DRB与NR PC5 QoS flow的映射关系,将所述IP数据映射至NR PC5 DRB;基于所述第三通信节点配置或预配置的LTE空口演进分组系统EPS承载与NR PC5 QoS流的映射关系以及LTE空口DRB的配置,将所述IP数据映射至LTE空口DRB。
- 一种设备,包括:存储器,以及一个或多个处理器;所述存储器,设置为存储一个或多个程序;所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如权利要求1-40中任一项所述的方法。
- 一种存储介质,所述存储介质存储有计算机程序,所述计算机程序被处 理器执行时实现权利要求1-40中任一项所述的方法。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210321365A1 (en) * | 2020-04-08 | 2021-10-14 | Qualcomm Incorporated | Quality of service or priority configuration for relay user equipment |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113543207B (zh) * | 2020-04-20 | 2024-02-09 | 大唐移动通信设备有限公司 | 一种信息传输方法、网络设备及终端 |
KR20220001454A (ko) * | 2020-06-29 | 2022-01-05 | 아서스테크 컴퓨터 인코포레이션 | 무선 통신 시스템에서 사이드링크 데이터 무선 베어러 설정을 위한 위한 방법 및 장치 |
CN117158114A (zh) * | 2020-12-09 | 2023-12-01 | 华为技术有限公司 | 一种路由方法、装置以及系统 |
WO2022155138A1 (en) * | 2021-01-12 | 2022-07-21 | Idac Holdings, Inc. | Methods and apparatus for supporting differentiated quality of service in sidelink relays |
CN115175116A (zh) * | 2021-04-01 | 2022-10-11 | 维沃移动通信有限公司 | Pdu会话建立方法、相关设备及可读存储介质 |
US20220330115A1 (en) * | 2021-04-01 | 2022-10-13 | Lg Electronics Inc. | Method of operating a ue related to an rrc connection in a sidelink relay in a wireless communication system |
CN115623467A (zh) * | 2021-07-13 | 2023-01-17 | 维沃移动通信有限公司 | 中继的识别方法、中继的确定方法、终端及网络侧设备 |
WO2023004529A1 (en) * | 2021-07-26 | 2023-02-02 | Qualcomm Incorporated | Techniques for performing quality of service management for sidelink communications |
US11843971B2 (en) * | 2021-10-14 | 2023-12-12 | Cisco Technology, Inc. | Dynamic enablement of RLC mode based on UE RF conditions |
KR20240008232A (ko) * | 2022-07-11 | 2024-01-18 | 아서스 테크놀러지 라이센싱 아이엔씨. | 무선 통신 시스템에서 qos(quality of service) 플로우 설정을 위한 방법 및 장치 |
WO2024101659A1 (ko) * | 2022-11-10 | 2024-05-16 | 엘지전자 주식회사 | 무선 통신 시스템에서 사이드링크 포지셔닝 프로토콜 메시지의 재전송을 수행하는 방법 및 이를 위한 장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180288822A1 (en) * | 2017-03-30 | 2018-10-04 | Lg Electronics Inc. | Method and apparatus for transmitting and receiving a signal in a wireless communication system supporting a relay ue |
CN108809897A (zh) * | 2017-04-28 | 2018-11-13 | 中兴通讯股份有限公司 | 一种中继发现及中继转发方法、设备和存储介质 |
CN109246793A (zh) * | 2017-05-17 | 2019-01-18 | 华为技术有限公司 | 多链接的数据传输方法及装置 |
CN109792326A (zh) * | 2018-12-29 | 2019-05-21 | 北京小米移动软件有限公司 | 直连通信的数据传输方法、装置、设备及系统 |
CN110662202A (zh) * | 2018-06-29 | 2020-01-07 | 华硕电脑股份有限公司 | 在无线通信系统中处理装置到装置资源释放的方法和设备 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2694814C1 (ru) * | 2015-06-23 | 2019-07-17 | Интердиджитал Пейтент Холдингз, Инк. | ОБРАБОТКА ПРИОРИТЕТОВ В СИСТЕМЕ СВЯЗИ ProSe |
CN108391285B (zh) * | 2017-02-03 | 2023-05-05 | 中兴通讯股份有限公司 | 一种设备直通系统的通信方法、数据转发方法及装置 |
KR102265907B1 (ko) * | 2017-03-22 | 2021-06-16 | 엘지전자 주식회사 | 무선 통신 시스템에서 서비스 품질 (QoS) 구조 기반으로 상향링크 패킷을 전송하는 방법 및 이를 위한 장치 |
US20190281491A1 (en) | 2018-03-12 | 2019-09-12 | Qualcomm Incorporated | Quality of service (qos) congestion control handling |
-
2020
- 2020-02-13 CN CN202010091507.8A patent/CN111901784A/zh active Pending
-
2021
- 2021-02-09 EP EP21754200.0A patent/EP4102862A4/en active Pending
- 2021-02-09 KR KR1020227030648A patent/KR20220137725A/ko active Search and Examination
- 2021-02-09 CA CA3167943A patent/CA3167943A1/en active Pending
- 2021-02-09 JP JP2022549061A patent/JP7340111B2/ja active Active
- 2021-02-09 WO PCT/CN2021/076153 patent/WO2021160105A1/zh unknown
- 2021-02-09 US US17/799,335 patent/US11917449B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180288822A1 (en) * | 2017-03-30 | 2018-10-04 | Lg Electronics Inc. | Method and apparatus for transmitting and receiving a signal in a wireless communication system supporting a relay ue |
CN108809897A (zh) * | 2017-04-28 | 2018-11-13 | 中兴通讯股份有限公司 | 一种中继发现及中继转发方法、设备和存储介质 |
CN109246793A (zh) * | 2017-05-17 | 2019-01-18 | 华为技术有限公司 | 多链接的数据传输方法及装置 |
CN110662202A (zh) * | 2018-06-29 | 2020-01-07 | 华硕电脑股份有限公司 | 在无线通信系统中处理装置到装置资源释放的方法和设备 |
CN109792326A (zh) * | 2018-12-29 | 2019-05-21 | 北京小米移动软件有限公司 | 直连通信的数据传输方法、装置、设备及系统 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4102862A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210321365A1 (en) * | 2020-04-08 | 2021-10-14 | Qualcomm Incorporated | Quality of service or priority configuration for relay user equipment |
US11838894B2 (en) * | 2020-04-08 | 2023-12-05 | Qualcomm Incorporated | Quality of service or priority configuration for relay user equipment |
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