Communication method for multi-hop relay link, and terminal and network device

Abstract

The present application relates to a communication method for a multi-hop relay link, and a terminal and a network device. The method comprises: a remote terminal determining first quality of service (QOS) information and second QOS information on the basis of end-to-end QOS-related information of a multi-hop relay link; and the remote terminal sending the first QOS information and / or the second QOS information. By means of the embodiments of the present application, it is beneficial for a device on a multi-hop relay link to obtain accurate QOS information, so as to determine a suitable RLC channel configuration, thereby improving the communication performance.

Description

Method, terminal and network device for communication over multi-hop relay link TECHNICAL FIELD

[0001] The present application relates to the field of communications, and more particularly, to a method, terminal and network device for communication over multi-hop relay link. BACKGROUND

[0002] In a multi-hop relay architecture, a remote user equipment (UE) can connect to the network through multiple relay UEs, making the Quality of Service (QoS) control and Radio Link Control (RLC) channel configuration more complex. In a single-hop UE-network relay architecture, the QoS control and RLC channel configuration of the relay UE3 are completely controlled by the network. However, it is not applicable to the multi-hop relay architecture, because the network can not be able to directly control the QoS and RLC channel configuration of the relay UE1.

[0003] SUMMARY

[0004] Embodiments of the present application provide a method, terminal and network device for communication over multi-hop relay link, which can improve the communication performance.

[0005] Embodiments of the present application provide a method for communication over multi-hop relay link, comprising:

[0006] The remote terminal determines first QoS information and second QoS information according to end-to-end Quality of Service (QoS) related information of the multi-hop relay link;

[0007] The remote terminal sends the first QoS information and / or the second QoS information.

[0008] Embodiments of the present application provide a method for communication over multi-hop relay link, comprising:

[0009] The first relay terminal determines first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link;

[0010] The first relay terminal sends the first QoS information and / or the second QoS information.

[0011] Embodiments of the present application provide a method for communication over multi-hop relay link, comprising:

[0012] The second relay terminal determines first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link;

[0013] The second relay terminal sends the first QoS information and / or the second QoS information.

[0014] Embodiments of the present application provide a communication method of a multi-hop relay link, comprising:

[0015] The network device determines the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0016] The network device sends the first QoS information and / or the second QoS information.

[0017] Embodiments of the present application provide a remote terminal, comprising:

[0018] The processing unit is configured to determine the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0019] The transceiver is configured to send the first QoS information and / or the second QoS information.

[0020] Embodiments of the present application provide a first relay terminal, comprising:

[0021] The processing unit is configured to determine the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0022] The transceiver is configured to send the first QoS information and / or the second QoS information.

[0023] Embodiments of the present application provide a second relay terminal, comprising:

[0024] The processing unit is configured to determine the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0025] The transceiver is configured to send the first QoS information and / or the second QoS information.

[0026] Embodiments of the present application provide a network device, comprising:

[0027] The processing unit is configured to determine the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0028] The transceiver is configured to send the first QoS information and / or the second QoS information.

[0029] Embodiments of the present application provide a communication device, comprising a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the communication device executes the above-mentioned communication method of a multi-hop relay link.

[0030] The chip is used to implement the communication method of the multi-hop relay link.

[0031] Specifically, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the communication method of the multi-hop relay link.

[0032] The computer readable storage medium is used to store a computer program, which, when executed by a device, causes the device to perform the communication method of the multi-hop relay link.

[0033] The computer program product comprises computer program instructions, which cause a computer to perform the communication method of the multi-hop relay link.

[0034] The computer program, when executed on a computer, causes the computer to perform the communication method of the multi-hop relay link. BRIEF DESCRIPTION OF DRAWINGS

[0035] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0036] FIG. 2 is a schematic diagram of layer two terminal-to-network relay.

[0037] FIG. 3 is a schematic flowchart of the communication method of the multi-hop relay link according to an embodiment of the present application.

[0038] FIG. 4 is a schematic flowchart of the communication method of the multi-hop relay link according to an embodiment of the present application.

[0039] FIG. 5 is a schematic flowchart of the communication method of the multi-hop relay link according to an embodiment of the present application.

[0040] FIG. 6 is a schematic flowchart of the communication method of the multi-hop relay link according to an embodiment of the present application.

[0041] FIG. 7 is a schematic diagram of the first time QoS segmentation operation performed by the network.

[0042] FIG. 8 is a schematic diagram of the first time QoS segmentation operation performed by the relay UE2.

[0043] FIG. 9 is a schematic diagram of the first time QoS segmentation operation performed by the remote UE or the relay UE1.

[0044] FIG. 10 is a schematic block diagram of a remote terminal according to an embodiment of the present application.

[0045] FIG. 11 is a schematic block diagram of a first relay terminal according to an embodiment of the present application.

[0046] FIG. 12 is a schematic block diagram of a second relay terminal according to an embodiment of the present application.

[0047] FIG. 13 is a schematic block diagram of a network device according to an embodiment of the present application.

[0048] FIG. 14 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0049] FIG. 15 is a schematic block diagram of a chip according to an embodiment of the present application.

[0050] FIG. 16 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0052] The technical solutions in the embodiments of the present application can be applied to various communication systems, such as a Long Term Evolution (LTE) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, a Non-Terrestrial Networks (NTN) system, a Universal Mobile Telecommunication System (UMTS), a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a 5th-Generation (5G) system, or other communication systems, etc.

[0053] Generally, a conventional communication system supports a limited number of connections and is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, and the like. Embodiments of the present application can also be applied to these communication systems.

[0054] In an embodiment, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, can also be applied to a Dual Connectivity (DC) scenario, and can also be applied to a Standalone (SA) network deployment scenario.

[0055] In an embodiment, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, which can also be considered as a shared spectrum, or can be applied to a licensed spectrum, which can also be considered as a non-shared spectrum.

[0056] Embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein the terminal device can also be referred to as User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment, etc.

[0057] The terminal device can be a station (STATION, ST) in a WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0058] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); and can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0059] In the embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0060] By way of example and not limitation, in the embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also a device that realizes powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes devices with full functions, large size, and the ability to realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that focus on a certain application function and need to be used in cooperation with other devices such as smart phones, such as various smart wristbands and smart jewelry for monitoring vital signs.

[0061] In the embodiments of the present application, the network device can be a device for communicating with the mobile device, which can be an access point (AP) in a WLAN, an evolved node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (gNB) or a future evolved PLMN network or a network device in an NTN network, etc.

[0062] By way of example and not limitation, in embodiments of the present application, a network device can have a mobile characteristic, for example, the network device can be a mobile device. Alternatively, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device can also be a base station disposed at a location on land, water, etc.

[0063] In embodiments of the present application, a network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc., and these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0064] FIG. 1 illustrates a communication system 100. The communication system includes one network device 110 and two terminal devices 120. In an implementation, the communication system 100 can include multiple network devices 110, and each network device 110 can include other numbers of terminal devices 120 within its coverage, which is not limited in embodiments of the present application.

[0065] In an implementation, the communication system 100 can also include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in embodiments of the present application.

[0066] The network device can include an access network device and a core network device. That is, the wireless communication system also includes a plurality of core networks for communicating with the access network device. The access network device can be an evolved node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an access point (AP), a transmission point (TP), or a new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next radio (NR) system, or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0067] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example, the communication system shown in FIG. 1 can include network devices and terminal devices with communication functions. The network devices and terminal devices can be specific devices in the embodiments of the present application, which will not be described here. The communication devices can also include other devices in the communication system, such as network controllers, mobile management entities, and other network entities. The embodiments of the present application do not limit the above.

[0068] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document is only used to describe the association relationship between the associated objects. For example, A and / or B can represent three cases: A alone, A and B together, and B alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0069] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained through A; or A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or A and B have an associated relationship.

[0070] In the description of the embodiments of the present application, the term "corresponding" can mean a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, and the like.

[0071] For the convenience of understanding the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows. The related technologies below can be combined with the technical solutions of the embodiments of the present application in any manner, and all of them belong to the protection scope of the embodiments of the present application.

[0072] Layer 2 UE to network (U2N) relay

[0073] The 3rd Generation Partnership Project (3GPP) Release 17 (R17) introduces Layer 2 UE to network relay, with an adaptation layer placed on top of the control plane and user plane RLC sublayers at the Uu interface between the relay UE and the gNB. The Uu Service Data Adaptation Protocol (SDAP) / Packet Data Convergence Protocol (PDCP) and RRC are terminated between the remote UE and the gNB, while the RLC, Medium Access Control (MAC) and physical layer (PHY) are terminated in each link (i.e. between the remote UE and the relay UE, and between the relay UE and the gNB). Whether the adaptation layer is also supported at the PC5 interface between the remote UE and the relay UE is left to the Work Item (WI).

[0074] As shown in FIG. 2, an example of L2 UE to network relay is shown. In which, the remote UE can communicate with the network side through the UE to network relay. The network side can include gNB and 5G Mobile Core (5GC).

[0075] An example of uplink is as follows:

[0076] The Uu adaptation layer of the relay UE supports uplink bearer mapping between access PC5 RLC channels for the relay and the Uu RLC channels in the egress direction on the relay UE Uu path. For uplink relay traffic, different end-to-end bearers (e.g. Signalling Radio Bearers (SRBs), Data Radio Bearers (DRBs)) of the same remote UE and / or different remote UEs can be N:1 mapped and data multiplexed on one Uu RLC channel.

[0077] The Uu adaptation layer is used to support remote terminal identification for uplink traffic (multiplexing data from multiple remote terminals). Remote terminal Uu radio bearer and remote terminal identification information is included in the Uu adaptation layer (ADAPT) for uplink, so that the gNB can associate the received data packets of a specific PDCP entity (e.g. Uu-PDCP) associated with a remote terminal Uu radio bearer (e.g. Uu DRB).

[0078] An example of downlink is as follows:

[0079] The Uu adaptation layer can be used to support downlink bearer mapping at the gNB to map end-to-end radio bearers (SRB, DRB) of remote terminals to a Uu RLC channel over the relay UE-Uu path. The Uu adaptation layer can be used to support downlink N:1 bearer mapping and data multiplexing between multiple end-to-end radio bearers (SRB, DRB) of remote terminals and / or different remote terminals and one Uu RLC channel over the relay UE Uu path.

[0080] The Uu adaptation layer needs to support remote terminal identification for downlink traffic. The identity information of remote terminal Uu radio bearer and remote terminal identification information needs to be put into the Uu adaptation layer by the gNB at the downlink, so that the relay UE can map the data packets received from the remote terminal Uu radio bearer to its related PC5 RLC channel.

[0081] In a single-hop UE-network relay architecture, e.g. including a remote UE, a relay UE3 and a network, the QoS control and RLC channel configuration of the relay UE3 are fully controlled by the network. Specifically, the network allocates one or more bearers for the relay UE3 according to the QoS requirements of the remote UE, each bearer corresponding to a respective QoS level. The network also configures the relevant parameters for the RLC channel of each bearer of the relay UE3 according to the QoS level. This scheme is relatively simple, and the network can uniformly manage the QoS and RLC channel configuration of the relay UE3. However, this scheme is not suitable for multi-hop relay architecture, because the network may not be able to directly control the QoS and RLC channel configuration of the relay UE1, which is crucial for end-to-end QoS guarantee.

[0082] In a multi-hop relay architecture, the remote UE is connected to the network through multiple relay UEs, which can expand the network coverage, improve the network capacity, and reduce the network deployment cost. However, this also brings complexity to the QoS control and RLC channel configuration, as the performance and resource limitations of multiple relay links need to be considered, as well as the end-to-end QoS requirements.

[0083] In the embodiments of the present application, the end-to-end QoS related information can be first segmented on one device on the multi-hop relay link, and then transmitted to other devices on the multi-hop relay link for further segmentation, and thus the single-hop QoS related information is obtained.

[0084] FIG. 3 is a schematic flowchart of a communication method 300 of a multi-hop relay link according to an embodiment of the present application. The method can be optionally applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following content.

[0085] S310, the remote terminal determines first QoS information and second QoS information according to the end-to-end QoS related information of the multi-hop relay link;

[0086] S320, the remote terminal transmits the first QoS information and / or the second QoS information.

[0087] In the embodiments of the present application, the multi-hop relay link from terminal to network (U2N) can comprise a remote terminal, a plurality of relay terminals and a network device. The remote terminal can also be referred to as a remote terminal or an end terminal. The end-to-end QoS related information can comprise QoS information of a link between the remote terminal and the network device. The remote terminal can first segment the end-to-end QoS related information to obtain first QoS information and second QoS information. The first QoS information can comprise one-hop or multi-hop QoS information, and the second QoS information can comprise one-hop or multi-hop QoS information. The remote terminal can transmit the segmented first QoS information and / or second QoS information to other devices on the multi-hop relay link except itself. The first QoS information and / or second QoS information can need to be further segmented on the other devices. Based on the end-to-end QoS related information, the first QoS information and the second QoS information are obtained, which is beneficial to enable the devices on the multi-hop relay link to obtain accurate QoS information, and thus to determine a suitable RLC channel configuration and improve communication performance.

[0088] In the embodiments of the present application, the QoS information can be various, for example:

[0089] 1) Packet Delay Budget (PDB). For example, the End to End (E2E) PDB is changed to per-hop PDB, and the sum of the per-hop PDBs is less than or equal to the E2E PDB.

[0090] 2) Packet Error Rate (PER). For example, if the multi-hop relay link includes 3 hops, an example of the formula of the PER is: (1-E2E PER) = (1-first hop PER)*(1-second hop PER)*(1-third hop PER). If the number of hops of the multi-hop relay link changes, the formula also changes accordingly, which reflects that the end-to-end PER can reflect the PER of each hop.

[0091] wherein the PDB and / or PER of different hops can be different.

[0092] In an implementation, the form of the second QoS information includes one or more of: a 5th Generation Quality of Service Identifier (5G QoS ID, 5QI), a PQI, a non-standardized PQI, a QoS parameter. Wherein, the PQI is the short name of PC5 5QI, and PC5 is the interface name of end-to-end (UE to UE) link. For example, the remote UE can indicate to send the second QoS information to the relay UE1, relay UE2 or network device in the form of 5QI, PQI, non-standardized PQI, complete QoS parameter or partial QoS parameter (e.g., only PDB).

[0093] In an implementation, the transmission manner of the first QoS information and / or the second QoS information includes: information for different QoS flows or information for different bearers. For example, the first QoS information is transmitted to the relay UE1, relay UE2 or network device by information for different QoS flows. For another example, the second QoS information is transmitted to the relay UE1, relay UE2 or network device by information for different bearers. The first QoS information and / or the second QoS information can be transmitted separately from the mapping information of QoS flow to bearer, or can be transmitted together.

[0094] In an implementation, the remote terminal sends the first QoS information and / or the second QoS information, including one or more of:

[0095] The remote terminal sends the second QoS information to the first relay terminal and / or the second relay terminal;

[0096] The remote terminal sends the second QoS information to the second relay terminal through the first relay terminal;

[0097] The remote terminal sends the second QoS information to the network device through the first relay terminal and / or the second relay terminal.

[0098] In the embodiments of the present application, the remote terminal can obtain the first QoS information and / or the second QoS information after performing the first segmentation of the end-to-end QoS related information. The remote terminal can continue to segment the first QoS information and / or the second QoS information by itself. The remote terminal can also send the first QoS information and / or the second QoS information to other devices in the multi-hop relay link except the remote terminal to perform the second segmentation. For example, if the first QoS information does not need to be segmented for the second time, and the second QoS information needs to be segmented for the second time, the second QoS information can be sent to other devices in the multi-hop relay link to perform the second segmentation. For example, the remote terminal sends the second QoS information to the first relay terminal, and the first relay terminal performs the second segmentation on the second QoS information. For another example, the remote terminal sends the second QoS information to the second relay terminal, and the second relay terminal performs the second segmentation on the second QoS information. For another example, the remote terminal sends the second QoS information to the first relay terminal, the first relay terminal forwards the second QoS information to the second relay terminal, and the second relay terminal performs the second segmentation on the second QoS information. For another example, the remote terminal sends the second QoS information to the first relay terminal, the first relay terminal forwards the second QoS information to the second relay terminal, and the second relay terminal forwards the second QoS information to the network device, and the network device performs the second segmentation on the second QoS information.

[0099] In an embodiment, the second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal, or the network device. In the embodiments of the present application, the remote terminal, the first relay terminal, the second relay terminal, or the network device can perform the second segmentation on the second QoS information to obtain the third QoS information and the fourth QoS information. If the third QoS information and / or the fourth QoS information is single-hop QoS related information, the segmentation can not continue. If the third QoS information and / or the fourth QoS information is multi-hop QoS related information, the segmentation can continue.

[0100] In an embodiment, example one can include that the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal. If the link between the second relay terminal and the remote terminal also includes multiple hops, the second QoS information can be further segmented for the second time.

[0101] In an embodiment, example one can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device. In this way, QoS related information of each hop on a multi-hop relay link can be obtained by second splitting of the second QoS information.

[0102] In an embodiment, example two can include that the first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

[0103] In an embodiment, example two can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device. In this way, QoS related information of each hop on a multi-hop relay link can be obtained by second splitting of the second QoS information.

[0104] In an embodiment, the sending manner of the third QoS information and / or the fourth QoS information includes one or more of the following:

[0105] the third QoS information and / or the fourth QoS information split by the remote terminal is sent to one or more of the first relay terminal, the second relay terminal and the network device;

[0106] the third QoS information and / or the fourth QoS information split by the first relay terminal is sent to one or more of the remote terminal, the second relay terminal and the network device;

[0107] the third QoS information and / or the fourth QoS information split by the second relay terminal is sent to one or more of the remote terminal, the first relay terminal and the network device;

[0108] the third QoS information and / or the fourth QoS information split by the network device is sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0109] For example, if the second QoS information is split by the remote terminal to obtain the third QoS information and / or the fourth QoS information. The remote terminal can send the third QoS information and / or the fourth QoS information directly or indirectly to the first relay terminal, the second relay terminal or the network device.

[0110] For example, the first relay terminal can split the second QoS information to obtain the third QoS information and / or the fourth QoS information. The first relay terminal can transmit the third QoS information and / or the fourth QoS information directly or indirectly to the remote terminal, the second relay terminal, or a network device.

[0111] For example, the second relay terminal can split the second QoS information to obtain the third QoS information and / or the fourth QoS information. The second relay terminal can transmit the third QoS information and / or the fourth QoS information directly or indirectly to the remote terminal, the first relay terminal, or a network device.

[0112] For example, the network device can split the second QoS information to obtain the third QoS information and / or the fourth QoS information. The network device can transmit the third QoS information and / or the fourth QoS information directly or indirectly to the remote terminal, the first relay terminal, or the second relay terminal.

[0113] In an embodiment, a radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following;

[0114] fifth QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal;

[0115] a different parameter configuration than a terminal-to-terminal (U2U) relay;

[0116] a same parameter configuration as a U2U relay.

[0117] For example, the first relay terminal can determine the RLC channel configuration according to the QoS related information of the hop between the first relay terminal and the second relay terminal, the RLC channel configuration being used to configure an RLC between the first relay terminal and the second relay terminal, the RLC being used for transmission from the first relay terminal to the second relay terminal. For another example, the first relay terminal can determine the RLC channel configuration according to the QoS related information of the hop between the remote terminal and the first relay terminal, the RLC channel configuration being used to configure an RLC between the first relay terminal and the remote terminal, the RLC being used for transmission from the first relay terminal to the remote terminal. For another example, the first relay terminal can obtain the RLC channel configuration based on one or more of the following: the QoS information and / or a parameter setting table. In this way, a device on a multi-hop relay link, e.g. the first relay terminal, can obtain an RLC channel configuration that meets QoS requirements, improving communication performance.

[0118] In an embodiment, the RLC channel configuration is for transmissions of the first relay terminal to the remote terminal and transmissions of the first relay terminal to the second relay terminal. For example, the first relay terminal transmits data to the remote terminal based on the RLC channel configuration. For another example, the first relay terminal transmits data to the second relay terminal based on the RLC channel configuration.

[0119] FIG. 4 is a schematic flowchart of a communication method 400 of a multi-hop relay link according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0120] S410, the first relay terminal determines the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link;

[0121] S420, the first relay terminal transmits the first QoS information and / or the second QoS information.

[0122] In an embodiment of the present application, the first relay terminal can perform a first segmentation on the end-to-end QoS related information to obtain the first QoS information and the second QoS information. The first QoS information can comprise one-hop or multi-hop QoS information, and the second QoS information can comprise one-hop or multi-hop QoS information. The first relay terminal can transmit the segmented first QoS information and / or the second QoS information to other devices on the multi-hop relay link except itself. The first QoS information and / or the second QoS information can need to be further segmented on the other devices. Obtaining the first QoS information and the second QoS information based on the end-to-end QoS related information is beneficial to enable the devices on the multi-hop relay link to obtain accurate QoS information, and further determine a suitable RLC channel configuration to improve communication performance.

[0123] In an embodiment, the second QoS information is in a form comprising one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

[0124] In an embodiment, the first QoS information and / or the second QoS information is transmitted in a manner comprising information for different QoS flows or information for different bearers.

[0125] In an embodiment, the method further comprises: the first relay terminal receiving the end-to-end QoS related information from the remote terminal. For example, the remote terminal transmits the end-to-end QoS related information to the first relay terminal, and the first relay terminal performs a first segmentation on the end-to-end QoS related information.

[0126] In an embodiment, the first relay terminal sends the first QoS information and / or the second QoS information including one or more of:

[0127] The first relay terminal sends the second QoS information to the remote terminal.

[0128] The first relay terminal sends the second QoS information to the second relay terminal.

[0129] The first relay terminal sends the second QoS information to the network device through the second relay terminal.

[0130] In embodiments of the present application, after the first relay terminal performs the first splitting of the end-to-end QoS related information, the first QoS information and / or the second QoS information can be obtained. The first relay terminal can continue to split the first QoS information and / or the second QoS information by itself. The first relay terminal can also send the first QoS information and / or the second QoS information to other devices in the multi-hop relay link other than the first relay terminal for a second splitting. For example, if the first QoS information does not need to be split for a second time and the second QoS information needs to be split for a second time, the first relay terminal can send the second QoS information to other devices in the multi-hop relay link for a second splitting. For example, the first relay terminal sends the second QoS information to the remote terminal, and the remote terminal splits the second QoS information for a second time. For another example, the first relay terminal sends the second QoS information to the second relay terminal, and the second relay terminal splits the second QoS information for a second time. For another example, the first relay terminal sends the second QoS information to the second relay terminal, and the second relay terminal forwards the second QoS information to the network device, and the network device splits the second QoS information for a second time.

[0131] In an embodiment, the second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal, or the network device.

[0132] In an embodiment, example one can include that the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

[0133] In an embodiment, example one can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the remote terminal.

[0134] In an embodiment, example two can include that the first QoS information comprises QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information comprises QoS related information of a link between the first relay terminal and the network device.

[0135] In an embodiment, example two can further include that the second QoS information determines third QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and fourth QoS information comprising QoS related information of a hop between the second relay terminal and the network device.

[0136] In an embodiment, the sending of the third QoS information and / or the fourth QoS information comprises one or more of:

[0137] The third QoS information and / or the fourth QoS information split by the first relay terminal is sent to one or more of the remote terminal, the second relay terminal and the network device;

[0138] The third QoS information and / or the fourth QoS information split by the second relay terminal is sent to one or more of the remote terminal, the first relay terminal and the network device;

[0139] The third QoS information and / or the fourth QoS information split by the network device is sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0140] In an embodiment, the method further comprises:

[0141] The first relay terminal determines the RLC channel configuration according to one or more of:

[0142] fifth QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and / or, QoS related information of a hop between the remote terminal and the first relay terminal;

[0143] Different parameter configuration from U2U relay;

[0144] Same parameter configuration as U2U relay.

[0145] In an embodiment, the RLC channel configuration is for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0146] The same content of the present embodiment as the above-mentioned embodiments can be referred to the related description of the above-mentioned embodiments, and for brevity, will not be repeated here.

[0147] FIG. 5 is a schematic flowchart of a communication method 500 of a multi-hop relay link according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0148] S510, the second relay terminal determines the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link;

[0149] S520, the second relay terminal sends the first QoS information and / or the second QoS information.

[0150] In the embodiments of the present application, the second relay terminal can perform the first segmentation on the end-to-end QoS related information to obtain the first QoS information and the second QoS information. The first QoS information can comprise one-hop or multi-hop QoS information, and the second QoS information can comprise one-hop or multi-hop QoS information. The second relay terminal can send the segmented first QoS information and / or the second QoS information to other devices on the multi-hop relay link except itself. The first QoS information and / or the second QoS information can need to be further segmented on the other devices. Obtaining the first QoS information and the second QoS information based on the end-to-end QoS related information is conducive to enabling the devices on the multi-hop relay link to obtain accurate QoS information, and further determining a suitable RLC channel configuration to improve communication performance.

[0151] In an implementation, the form of the second QoS information comprises one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

[0152] In an implementation, the transmission mode of the first QoS information and / or the second QoS information comprises information for different QoS flows or information for different bearers.

[0153] In an implementation, the method further comprises one or more of the following:

[0154] The second relay terminal receives the end-to-end QoS related information from the remote terminal;

[0155] The second relay terminal receives the end-to-end QoS related information from the remote terminal through the first relay terminal.

[0156] For example, the remote terminal sends the end-to-end QoS related information to the second relay terminal, which performs the first segmentation.

[0157] For another example, the remote terminal sends the end-to-end QoS related information to the first relay terminal, the first relay terminal forwards the end-to-end QoS related information to the second relay terminal, and the second relay terminal performs the first splitting.

[0158] In an embodiment, the second relay terminal sends the first QoS information and / or the second QoS information, including one or more of:

[0159] The second relay terminal sends the second QoS information to a network device.

[0160] The second relay terminal sends the second QoS information to the first relay terminal.

[0161] The second relay terminal sends the second QoS information to the remote terminal through the first relay terminal.

[0162] In an embodiment, after the second relay terminal performs the first splitting of the end-to-end QoS related information, the second relay terminal can obtain the first QoS information and / or the second QoS information. The second relay terminal can further split the first QoS information and / or the second QoS information. The second relay terminal can send the first QoS information and / or the second QoS information to a device other than the second relay terminal in the multi-hop relay link to perform a second splitting. For example, if the first QoS information does not need to be split a second time and the second QoS information needs to be split a second time, the second relay terminal can send the second QoS information to a device in the multi-hop relay link to perform the second splitting. For example, the second relay terminal sends the second QoS information to a network device, and the network device performs the second splitting of the second QoS information. For another example, the second relay terminal sends the second QoS information to the first relay terminal, and the first relay terminal performs the second splitting of the second QoS information. For another example, the second relay terminal sends the second QoS information to the first relay terminal, the first relay terminal forwards the second QoS information to the remote terminal, and the remote terminal performs the second splitting of the second QoS information.

[0163] In an embodiment, the second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal, or a network device.

[0164] In an embodiment, example one can include that the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

[0165] In an implementation, example one can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the network device.

[0166] In an implementation, example two can include that the first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

[0167] In an implementation, example two can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

[0168] In an implementation, the sending of the third QoS information and / or the fourth QoS information includes one or more of:

[0169] The third QoS information and / or the fourth QoS information split by the first relay terminal is sent to one or more of the remote terminal, the second relay terminal and the network device;

[0170] The third QoS information and / or the fourth QoS information split by the second relay terminal is sent to one or more of the remote terminal, the first relay terminal and the network device;

[0171] The third QoS information and / or the fourth QoS information split by the network device is sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0172] In an implementation, the radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of:

[0173] fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or, QoS related information of a hop between the remote terminal and the first relay terminal;

[0174] different parameter configuration from the U2U relay;

[0175] same parameter configuration as the U2U relay.

[0176] In an implementation, the RLC channel is configured for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0177] The same content in the embodiment as in the above embodiment can be referred to the related description of the above embodiment, and for brevity, will not be repeated here.

[0178] FIG. 6 is a schematic flowchart of a communication method 600 of a multi-hop relay link according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0179] S610, the network device determines the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link;

[0180] S620, the network device sends the first QoS information and / or the second QoS information.

[0181] In the embodiment of the present application, the network device can perform the first segmentation on the end-to-end QoS related information to obtain the first QoS information and the second QoS information. The first QoS information can include one-hop or multi-hop QoS information, and the second QoS information can include one-hop or multi-hop QoS information. The network device can send the segmented first QoS information and / or the second QoS information to other devices on the multi-hop relay link except itself. The first QoS information and / or the second QoS information can need to be further segmented on the other devices. Obtaining the first QoS information and the second QoS information based on the end-to-end QoS related information is beneficial to enable the devices on the multi-hop relay link to obtain accurate QoS information, and further determine appropriate RLC channel configuration, thereby improving communication performance.

[0182] In an implementation, the form of the second QoS information includes one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameter, partial QoS parameter.

[0183] In an implementation, the transmission mode of the first QoS information and / or the second QoS information includes information for different QoS flows or information for different bearers.

[0184] In an embodiment, the method further comprises: the network device receiving the end-to-end QoS related information from the remote terminal via the first relay terminal and / or the second relay terminal. For example, the remote terminal sends the end-to-end QoS related information to the first relay terminal, and the first relay terminal forwards the end-to-end QoS related information to the network device for the first split. For example, the remote terminal sends the end-to-end QoS related information to the second relay terminal, and the second relay terminal forwards the end-to-end QoS related information to the network device for the first split. For another example, the remote terminal sends the end-to-end QoS related information to the first relay terminal, and the first relay terminal forwards the end-to-end QoS related information to the second relay terminal, and the second relay terminal forwards the end-to-end QoS related information to the network device for the first split.

[0185] In an embodiment, the network device sending the first QoS information and / or the second QoS information comprises one or more of:

[0186] The network device sending the second QoS information to the first relay terminal and / or the second relay terminal;

[0187] The network device sending the second QoS information to the first relay terminal via the second relay terminal;

[0188] The network device sending the second QoS information to the remote terminal via the second relay terminal and / or the first relay terminal.

[0189] In an embodiment, the second QoS information determines third QoS information and fourth QoS information via the remote terminal, the first relay terminal, the second relay terminal, or the network device.

[0190] In an embodiment, example one can comprise: the first QoS information comprises QoS related information of a hop between the network device and the second relay terminal, and the second QoS information comprises QoS related information of a link between the second relay terminal and the remote terminal.

[0191] In an embodiment, example one can further comprise: the third QoS information determined by the second QoS information comprises QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information comprises QoS related information of a hop between the first relay terminal and the remote terminal.

[0192] In an embodiment, example two can comprise: the first QoS information comprises QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information comprises QoS related information of a link between the first relay terminal and the network device.

[0193] In an embodiment, the second QoS information determines third QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and the second QoS information determines fourth QoS information including QoS related information of a hop between the second relay terminal and the network device.

[0194] In an embodiment, the third QoS information and / or the fourth QoS information is transmitted in one or more of the following manners:

[0195] The third QoS information and / or the fourth QoS information split by the first relay terminal is transmitted to one or more of the remote terminal, the second relay terminal and the network device;

[0196] The third QoS information and / or the fourth QoS information split by the second relay terminal is transmitted to one or more of the remote terminal, the first relay terminal and the network device;

[0197] The third QoS information and / or the fourth QoS information split by the network device is transmitted to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0198] In an embodiment, a radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following:

[0199] fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal;

[0200] a different parameter configuration from a U2U relay;

[0201] a same parameter configuration as a U2U relay.

[0202] In an embodiment, the RLC channel configuration is for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0203] The same content as the above embodiments can be referred to the related description of the above embodiments, and will not be described here again for brevity.

[0204] In an example of a multi-hop UE-network relay architecture, including a remote UE, a relay UE1, a relay UE2 and a network. The embodiments of the present application can enable the relay UE1 to implement QoS requirements and determine RLC channel configuration.

[0205] The following are embodiments of several specific schemes for QoS control and RLC channel configuration based on the multi-hop UE-network relay architecture:

[0206] Embodiment 1: The network performs the first QoS split operation.

[0207] Embodiment 2: The relay UE2 performs the first QoS split operation.

[0208] Embodiment 3: The remote UE or the relay UE1 performs the first QoS split operation.

[0209] The following describes the three schemes in detail, respectively.

[0210] Embodiment 1: The network performs the first QoS split operation, as shown in FIG. 7.

[0211] 1. Optionally, the remote UE reports the QoS to the network in any of the following ways (or if the network already knows the QoS. For example, if it is obtained from the core network, there is no need to report.):

[0212] a) The remote UE sends the end-to-end QoS to the relay UE1, which forwards it to the relay UE2, which forwards it to the network, or;

[0213] b) The remote UE sends the end-to-end QoS to the relay UE1, which reports it to the network, or;

[0214] c) The remote UE reports the end-to-end QoS to the network.

[0215] 2. The network splits the end-to-end QoS into one or more of the following: a) the QoS of the hop between the relay UE2 and the network, and b) the QoS of the link between the remote UE and the relay UE2.

[0216] 3. The network indicates the QoS of the link between the remote UE and the relay UE2 in the form of 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters (e.g., only PDB).

[0217] 1) The notification is made to one or more of the following devices: remote UE, relay UE1, relay UE2.

[0218] 2) The notification is made in the form of each flow, or in the form of each bearer (this notification can be separate from or together with the flow-to-bearer mapping information).

[0219] 4. For further splitting of the QoS of the link between remote UE and relay UE2, the QoS of the hop between remote UE and relay UE1, and the QoS of the hop between relay UE1 and relay UE2 can be obtained. The further splitting can be decided by one or more of the following devices:

[0220] a) The remote UE decides the QoS splitting, and the remote UE sends the splitting result to relay UE1 (and the remote UE or relay UE1 sends it to relay UE2).

[0221] b) The relay UE1 decides the QoS splitting, and the relay UE1 sends the splitting result to remote UE and relay UE2.

[0222] c) The relay UE2 decides the QoS splitting, and the relay UE2 sends the splitting result to relay UE1 (and the relay UE2 or relay UE1 sends it to remote UE1).

[0223] 5. The relay UE1 determines the RLC channel configuration based on the parameter configuration of the U2U relay or a new parameter configuration, according to the transmission of relay UE1 to remote UE, and the transmission of relay UE1 to relay UE2.

[0224] Embodiment 2: The relay UE2 performs the first QoS splitting operation, as shown in Figure 8.

[0225] 1. The remote UE reports the QoS to the relay UE2 by any of the following ways:

[0226] a) The remote UE sends the end-to-end QoS to relay UE1, which forwards it to relay UE2, or

[0227] b) The remote UE sends the end-to-end QoS to relay UE2.

[0228] 2. The relay UE2 splits the end-to-end QoS into one or more of the following: a) the QoS of the hop between relay UE2 and the network, and b) the QoS of the link between remote UE and relay UE2.

[0229] 3. Optionally, the relay UE2 indicates the QoS of the link between remote UE and relay UE2, in the form of 5QI, PQI, non-standardized PQI, full QoS parameters, partial QoS parameters (e.g. only PDB).

[0230] 1) To one or more of the following devices: remote UE and / or relay UE1.

[0231] 2) In a per-flow manner, or in a per-bearer manner (this indication can be separate from or together with the flow-to-bearer mapping information),

[0232] 4. For further splitting of QoS for the link between remote UE and relay UE2, the QoS for the hop between remote UE and relay UE1, and the QoS for the hop between relay UE1 and relay UE2 can be obtained. The further splitting can be decided by one or more of the following devices:

[0233] a) The remote UE decides the QoS splitting, and the remote UE sends the splitting result to relay UE1 (and relay UE1 or relay UE2 sends it to remote UE1).

[0234] b) The relay UE1 decides the QoS splitting, and the relay UE1 sends the splitting result to remote UE and relay UE2.

[0235] c) The relay UE2 decides the QoS splitting, and the relay UE2 sends the splitting result to relay UE1 (and relay UE2 or relay UE1 sends it to remote UE1). This case applies to the case that step 3 is not performed.

[0236] 5. The relay UE1 determines the RLC channel configuration according to the transmission from relay UE1 to remote UE, and the transmission from relay UE1 to relay UE2. The RLC channel configuration can be similar to R18 U2U relay, e.g., reusing the U2U QoS table or a new table.

[0237] Embodiment 3: The remote UE or relay UE1 performs the first QoS splitting operation, as shown in Figure 9.

[0238] 1. The remote UE reports QoS to relay UE1.

[0239] 2. The relay UE1 or remote UE splits the QoS into one or more of the following: a) QoS for the hop between remote UE and relay UE1, and b) QoS for the hop between relay UE1 and network.

[0240] 1) The remote UE or relay UE1 sends the splitting result to relay UE2.

[0241] 2) The notification to relay UE2 is in the form of 5QI, PQI, non-standardized PQI, full QoS parameters, partial QoS parameters (e.g., only PDB). The notification is per flow, or per bearer (this notification can be separate from or together with the mapping information from flow to bearer).

[0242] 3. Optionally, if the relay UE1 decides the splitting, the relay UE1 notifies the QoS for the hop between remote UE and relay UE1 to remote UE at this step or the next step. The notification is per flow, or per bearer (this notification can be separate from or together with the mapping information from flow to bearer).

[0243] 4. For further splitting of QoS between relay UE1 and the hop to the network, QoS of the hop between relay UE1 and relay UE2, and QoS of the hop between relay UE2 and the network can be obtained. This step can be performed by relay UE2 or the network. For QoS of the hop between relay UE1 and relay UE2, relay UE1 can be provided by relay UE2 and / or the network.

[0244] 5. Relay UE1 determines RLC channel configuration based on the transmission from relay UE1 to remote UE, and the transmission from relay UE1 to relay UE2. The RLC channel configuration can be similar to R18 U2U relay, e.g., reusing U2U QoS table or a new table.

[0245] In embodiments of the present application, in a multi-hop UE-network relay architecture, QoS information can be split multiple times so that relay UE1 can achieve QoS requirements and determine RLC channel configuration.

[0246] The above embodiments can be combined together, and each of them is for processing QoS in different directions (e.g., embodiment 1 is for uplink, and embodiment 2 is for downlink).

[0247] FIG. 10 is a schematic block diagram of a remote terminal 1000 according to an embodiment of the present application. The remote terminal 1000 can include:

[0248] a processing unit 1010 configured to determine first QoS information and second QoS information according to end-to-end QoS related information of a multi-hop relay link;

[0249] a transceiver unit 1020 configured to transmit the first QoS information and / or the second QoS information.

[0250] In an embodiment, the second QoS information is in a form comprising one or more of: a 5th generation quality of service identifier (5QI), a PQI, a non-standardized PQI, a QoS parameter.

[0251] In an embodiment, the first QoS information and / or the second QoS information is transmitted in a manner comprising: information for different QoS flows or information for different bearers.

[0252] In an embodiment, the remote terminal transmits the first QoS information and / or the second QoS information in a manner comprising one or more of:

[0253] the remote terminal transmits the second QoS information to the first relay terminal and / or the second relay terminal;

[0254] the remote terminal transmits the second QoS information to the second relay terminal via the first relay terminal;

[0255] The remote terminal sends the second QoS information to the network device through the first relay terminal and / or the second relay terminal.

[0256] In an implementation, the second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal, or the network device.

[0257] In an implementation, example one can include that the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

[0258] In an implementation, example one can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the remote terminal.

[0259] In an implementation, example two can include that the first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

[0260] In an implementation, example two can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

[0261] In an implementation, the sending manner of the third QoS information and / or the fourth QoS information includes one or more of the following:

[0262] The third QoS information and / or the fourth QoS information split by the remote terminal are sent to one or more of the first relay terminal, the second relay terminal, and the network device;

[0263] The third QoS information and / or the fourth QoS information split by the first relay terminal are sent to one or more of the remote terminal, the second relay terminal, and the network device;

[0264] The third QoS information and / or the fourth QoS information split by the second relay terminal are sent to one or more of the remote terminal, the first relay terminal, and the network device;

[0265] The third QoS information and / or the fourth QoS information segmented by the network device are transmitted to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0266] In an embodiment, the radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following:

[0267] fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal;

[0268] Different parameter configuration from U2U relay;

[0269] Same parameter configuration as U2U relay.

[0270] In an embodiment, the RLC channel configuration is for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0271] The remote terminal 1000 of the embodiments of the present application can implement the corresponding functions of the remote terminal in the method embodiments described above. The processes, functions, implementation manners and advantages of the respective modules (sub-modules, units or components, etc.) in the remote terminal 1000 can be referred to the corresponding descriptions in the method embodiments described above, which will not be described herein again. It should be noted that the functions described with respect to the respective modules (sub-modules, units or components, etc.) in the remote terminal 1000 of the embodiments of the present application can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-module, unit or component, etc.).

[0272] FIG. 11 is a schematic block diagram of a first relay terminal 1100 according to an embodiment of the present application. The first relay terminal 1100 can include:

[0273] A processing unit 1110 configured to determine, by the first relay terminal, first QoS information and second QoS information according to end-to-end QoS related information of a multi-hop relay link;

[0274] A transceiver unit 1120 configured to transmit, by the terminal, the first QoS information and / or the second QoS information.

[0275] In an embodiment, the form of the second QoS information includes one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

[0276] In an embodiment, the transmission manner of the first QoS information and / or the second QoS information includes information for different QoS flows or information for different bearers.

[0277] In an embodiment, the transceiver 1120 of the first relay terminal is further configured to receive the end-to-end QoS related information from the remote terminal.

[0278] In an embodiment, the first relay terminal sends the first QoS information and / or the second QoS information by one or more of the following:

[0279] The first relay terminal sends the second QoS information to the remote terminal;

[0280] The first relay terminal sends the second QoS information to the second relay terminal;

[0281] The first relay terminal sends the second QoS information to the network device through the second relay terminal.

[0282] In an embodiment, the second QoS information determines third QoS information and fourth QoS information by the remote terminal, the first relay terminal, the second relay terminal, or the network device.

[0283] In an embodiment, example one can include that the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

[0284] In an embodiment, example one can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the remote terminal.

[0285] In an embodiment, example two can include that the first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

[0286] In an embodiment, example two can further include that the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

[0287] In an embodiment, the third QoS information and / or the fourth QoS information is sent by one or more of the following:

[0288] The third QoS information and / or the fourth QoS information split by the first relay terminal are transmitted to one or more of the remote terminal, the second relay terminal and the network device;

[0289] The third QoS information and / or the fourth QoS information split by the second relay terminal are transmitted to one or more of the remote terminal, the first relay terminal and the network device;

[0290] The third QoS information and / or the fourth QoS information split by the network device are transmitted to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0291] In an implementation, the processing unit 1110 is further configured to determine the RLC channel configuration according to one or more of the following:

[0292] fifth QoS information, the fifth QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal;

[0293] a different parameter configuration from the U2U relay;

[0294] a same parameter configuration as the U2U relay.

[0295] In an implementation, the RLC channel configuration is for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0296] The first relay terminal 1100 of the embodiments of the present application can realize the corresponding functions of the first relay terminal in the foregoing method embodiments. The processes, functions, implementation manners and advantages of the respective modules (sub-modules, units or components, etc.) in the first relay terminal 1100 can be referred to the corresponding descriptions in the foregoing method embodiments, which will not be described here again. It should be noted that the functions described with respect to the respective modules (sub-modules, units or components, etc.) in the first relay terminal 1100 of the embodiments of the present application can be realized by different modules (sub-modules, units or components, etc.), or can be realized by the same module (sub-module, unit or component, etc.).

[0297] FIG. 12 is a schematic block diagram of a second relay terminal 1200 according to an embodiment of the present application. The second relay terminal 1200 can comprise:

[0298] a processing unit 1210 configured to determine first QoS information and second QoS information according to end-to-end QoS related information of a multi-hop relay link;

[0299] a transceiver unit 1220 configured to transmit the first QoS information and / or the second QoS information.

[0300] In an embodiment, the form of the second QoS information comprises one or more of: 5QI, PQI, non-standardized PQI, full QoS parameters, partial QoS parameters.

[0301] In an embodiment, the transmission of the first QoS information and / or the second QoS information comprises information for different QoS flows or information for different bearers.

[0302] In an embodiment, the transceiver 1220 is further configured to perform one or more of the following steps:

[0303] receiving end-to-end QoS related information from the remote terminal;

[0304] receiving end-to-end QoS related information from the remote terminal via the first relay terminal.

[0305] In an embodiment, the second relay terminal transmits the first QoS information and / or the second QoS information comprises one or more of:

[0306] the second relay terminal transmits the second QoS information to a network device;

[0307] the second relay terminal transmits the second QoS information to the first relay terminal;

[0308] the second relay terminal transmits the second QoS information to the remote terminal via the first relay terminal.

[0309] In an embodiment, the second QoS information determines third QoS information and fourth QoS information via the remote terminal, the first relay terminal, the second relay terminal, or a network device.

[0310] In an embodiment, example one can comprise that the first QoS information comprises QoS related information for a hop between the network device and the second relay terminal, and the second QoS information comprises QoS related information for a link between the second relay terminal and the remote terminal.

[0311] In an embodiment, example one can further comprise that the second QoS information determines third QoS information comprising QoS related information for a hop between the first relay terminal and the second relay terminal, and fourth QoS information comprising QoS related information for a hop between the first relay terminal and the remote terminal.

[0312] In an embodiment, example two can include that the first QoS information comprises QoS related information for a hop between the remote terminal and the first relay terminal, and the second QoS information comprises QoS related information for a link between the first relay terminal and the network device.

[0313] In an embodiment, example two can further include that the second QoS information determines third QoS information comprising QoS related information for a hop between the first relay terminal and the second relay terminal, and fourth QoS information comprising QoS related information for a hop between the second relay terminal and the network device.

[0314] In an embodiment, the third QoS information and / or the fourth QoS information is transmitted in one or more of the following manners:

[0315] the third QoS information and / or the fourth QoS information split by the first relay terminal is transmitted to one or more of the remote terminal, the second relay terminal, and the network device;

[0316] the third QoS information and / or the fourth QoS information split by the second relay terminal is transmitted to one or more of the remote terminal, the first relay terminal, and the network device;

[0317] the third QoS information and / or the fourth QoS information split by the network device is transmitted to one or more of the remote terminal, the first relay terminal, and the second relay terminal.

[0318] In an embodiment, a radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following:

[0319] fifth QoS information comprising QoS related information for a hop between the first relay terminal and the second relay terminal, and / or, QoS related information for a hop between the remote terminal and the first relay terminal;

[0320] a different parameter configuration than a U2U relay;

[0321] a same parameter configuration as a U2U relay.

[0322] In an embodiment, the RLC channel configuration is for transmissions from the first relay terminal to the remote terminal and transmissions from the first relay terminal to the second relay terminal.

[0323] The second relay terminal 1200 of the embodiment of the present application can realize the corresponding functions of the network device in the foregoing method embodiments. The processes, functions, implementation manners and advantages of each module (sub-module, unit or component, etc.) in the second relay terminal 1200 can be referred to the corresponding description in the foregoing method embodiments, and will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit or component, etc.) in the second relay terminal 1200 of the embodiment of the present application can be realized by different modules (sub-modules, units or components, etc.), or can be realized by the same module (sub-module, unit or component, etc.).

[0324] FIG. 13 is a schematic block diagram of a network device 1300 according to an embodiment of the present application. The network device 1300 can include:

[0325] a processing unit 1310 configured to determine first QoS information and second QoS information according to end-to-end QoS related information of a multi-hop relay link;

[0326] a transceiver unit 1320 configured to transmit the first QoS information and / or the second QoS information.

[0327] In an implementation, the form of the second QoS information includes one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

[0328] In an implementation, the transmission manner of the first QoS information and / or the second QoS information includes information for different QoS flows or information for different bearers.

[0329] In an implementation, the transceiver unit 1320 of the network device is further configured to receive the end-to-end QoS related information from a remote terminal through a first relay terminal and / or a second relay terminal.

[0330] In an implementation, the transceiver unit 1320 is further configured to perform one or more of the following steps:

[0331] transmit the second QoS information to the first relay terminal and / or the second relay terminal;

[0332] transmit the second QoS information to the first relay terminal through the second relay terminal;

[0333] transmit the second QoS information to the remote terminal through the second relay terminal and / or the first relay terminal.

[0334] In an implementation, the second QoS information is used by the remote terminal, the first relay terminal, the second relay terminal or the network device to determine third QoS information and fourth QoS information.

[0335] In an implementation, example one can include that the first QoS information comprises QoS related information of a hop between the network device and the second relay terminal, and the second QoS information comprises QoS related information of a link between the second relay terminal and the remote terminal.

[0336] In an implementation, example one can further include that the second QoS information determines third QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and fourth QoS information comprising QoS related information of a hop between the first relay terminal and the remote terminal.

[0337] In an implementation, example two can include that the first QoS information comprises QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information comprises QoS related information of a link between the first relay terminal and the network device.

[0338] In an implementation, example two can further include that the second QoS information determines third QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and fourth QoS information comprising QoS related information of a hop between the second relay terminal and the network device.

[0339] In an implementation, the sending of the third QoS information and / or the fourth QoS information comprises one or more of:

[0340] the third QoS information and / or the fourth QoS information split by the first relay terminal is sent to one or more of the remote terminal, the second relay terminal and the network device;

[0341] the third QoS information and / or the fourth QoS information split by the second relay terminal is sent to one or more of the remote terminal, the first relay terminal and the network device;

[0342] the third QoS information and / or the fourth QoS information split by the network device is sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

[0343] In an implementation, a radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of:

[0344] fifth QoS information comprising QoS related information of a hop between the first relay terminal and the second relay terminal, and / or, QoS related information of a hop between the remote terminal and the first relay terminal;

[0345] Different parameter configuration from the U2U relay;

[0346] Same parameter configuration as the U2U relay.

[0347] In an implementation, the RLC channel is configured for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

[0348] The network device 1300 of the embodiments of the present application can realize the corresponding functions of the network device in the method embodiments described above. The processes, functions, implementation manners and advantages of each module (sub-module, unit or component, etc.) in the network device 1300 of the embodiments of the present application can be referred to the corresponding description in the method embodiments described above, which will not be repeated here. It should be noted that the functions described with respect to each module (sub-module, unit or component, etc.) in the network device 1300 of the embodiments of the present application can be realized by different modules (sub-modules, units or components, etc.), or can be realized by the same module (sub-module, unit or component, etc.).

[0349] FIG. 14 is a schematic structural diagram of a communication device 1400 according to the embodiments of the present application. The communication device 1400 includes a processor 1410, which can call and run a computer program from a memory to enable the communication device 1400 to implement the methods in the embodiments of the present application.

[0350] In an implementation, the communication device 1400 can further include a memory 1420. The processor 1410 can call and run a computer program from the memory 1420 to enable the communication device 1400 to implement the methods in the embodiments of the present application. The memory 1420 can be a separate device independent of the processor 1410, or can be integrated in the processor 1410.

[0351] In an implementation, the communication device 1400 can further include a transceiver 1430, and the processor 1410 can control the transceiver 1430 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0352] The transceiver 1430 can include a transmitter and a receiver. The transceiver 1430 can further include an antenna, and the number of antennas can be one or more.

[0353] In an implementation, the communication device 1400 can be a remote terminal, a first relay device, a second relay device or a network device of the embodiments of the present application, and the communication device 1400 can implement the corresponding processes in the methods of the embodiments of the present application realized by the remote terminal, the first relay device, the second relay device or the network device. For brevity, details are not repeated here.

[0354] FIG. 15 is a schematic structural diagram of a chip 1500 according to an embodiment of the present application. The chip 1500 includes a processor 1510, which can invoke and run a computer program from a memory to implement the method in the embodiments of the present application.

[0355] In an embodiment, the chip 1500 can further include a memory 1520. The processor 1510 can invoke and run a computer program from the memory 1520 to implement the method performed by the remote terminal, the first relay device, the second relay device or the network device in the embodiments of the present application.

[0356] The memory 1520 can be a separate device independent of the processor 1510, or can be integrated in the processor 1510.

[0357] In an embodiment, the chip 1500 can further include an input interface 1530. The processor 1510 can control the input interface 1530 to communicate with other devices or chips, and specifically, can acquire information or data sent by other devices or chips.

[0358] In an embodiment, the chip 1500 can further include an output interface 1540. The processor 1510 can control the output interface 1540 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

[0359] In an embodiment, the chip can be applied to the remote terminal, the first relay device, the second relay device or the network device in the embodiments of the present application, and the chip can implement the corresponding procedures in the various methods of the embodiments of the present application performed by the remote terminal, the first relay device, the second relay device or the network device. For brevity, details are not described herein.

[0360] The chip applied to the remote terminal, the first relay device, the second relay device or the network device can be the same chip or different chips.

[0361] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0362] The aforementioned processor can be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or other programmable logic device, transistor logic device, discrete hardware component, etc. Among them, the aforementioned general-purpose processor can be a microprocessor or any conventional processor, etc.

[0363] The aforementioned memory can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM).

[0364] It should be understood that the aforementioned memory is an exemplary but non-limiting description, for example, the memory in the embodiments of the present application can also be a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable type of memory.

[0365] FIG. 16 is a schematic block diagram of a communication system 1600 according to an embodiment of the present application. The communication system 1600 includes a remote terminal 1610, a first relay device 1620, a second relay device 1630, and a network device 1640.

[0366] The remote terminal 1610, the first relay device 1620, the second relay device 1630, or the network device 1640 are configured to determine the first QoS information and the second QoS information according to the end-to-end QoS related information of the multi-hop relay link.

[0367] The remote terminal 1610, the first relay device 1620, the second relay device 1630, or the network device 1640 are configured to transmit the first QoS information and / or the second QoS information.

[0368] The remote terminal can be configured to implement the corresponding functions of the remote terminal in the above method, the first relay device can be configured to implement the corresponding functions of the first relay device in the above method, the second relay device can be configured to implement the corresponding functions of the second relay device in the above method, and the network device can be configured to implement the corresponding functions of the network device in the above method. For brevity, details are not repeated here.

[0369] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, all or part of the computer program instructions generate a process or function according to the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), optical medium (for example, DVD), or semiconductor medium (for example, solid state disk (SSD)) and the like.

[0370] It should be understood that in various embodiments of the present application, the size of the sequence number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0371] Those skilled in the art can clearly understand the specific working process of the system, device and unit described above for the convenience and brevity of description, which can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0372] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for communication of a multi-hop relay link, comprising: determining, by a remote terminal, first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link; sending, by the remote terminal, the first QoS information and / or the second QoS information.

2. The method of claim 1, wherein, forms of the second QoS information include one or more of: a 5th generation quality of service identifier (5QI), a PQI, a non-standardized PQI, a QoS parameter.

3. The method of claim 2, wherein, the first QoS information and / or the second QoS information are transmitted in a manner including: information for different QoS flows or information for different bearers.

4. The method of any one of claims 1 to 3, wherein, sending, by the remote terminal, the first QoS information and / or the second QoS information includes one or more of: sending, by the remote terminal, the second QoS information to a first relay terminal and / or a second relay terminal; sending, by the remote terminal, the second QoS information to the second relay terminal through the first relay terminal; sending, by the remote terminal, the second QoS information to a network device through the first relay terminal and / or the second relay terminal.

5. The method of any one of claims 1 to 4, wherein, the second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal, or the network device.

6. The method of any one of claims 1 to 5, wherein, the first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

7. The method of claim 6, wherein, the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the remote terminal.

8. The method of any one of claims 1 to 5, wherein, the first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

9. The method of claim 8, wherein, the third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

10. The method of claim 5, 7, or 9, wherein, the third QoS information and / or the fourth QoS information are transmitted in a manner including one or more of: the third QoS information and / or the fourth QoS information split by the remote terminal are sent to one or more of the first relay terminal, the second relay terminal, and the network device; the third QoS information and / or the fourth QoS information split by the first relay terminal are sent to one or more of the remote terminal, the second relay terminal, and the network device; the third QoS information and / or the fourth QoS information split by the second relay terminal are sent to one or more of the remote terminal, the first relay terminal, and the network device; The third QoS information and / or the fourth QoS information split by the network device are sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

11. The method of any one of claims 1 to 10, wherein, The radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following: fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal; a different parameter configuration from a terminal-to-terminal (U2U) relay; a same parameter configuration as a U2U relay.

12. The method of claim 11, wherein, The RLC channel configuration is for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

13. A method of communication for a multi-hop relay link, comprising: a first relay terminal determining first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link; the first relay terminal sending the first QoS information and / or the second QoS information.

14. The method of claim 13, wherein, The second QoS information is in a form including one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

15. The method of claim 14, wherein, The first QoS information and / or the second QoS information is transmitted in a manner including information for different QoS flows or information for different bearers.

16. The method of any one of claims 13-15, wherein, The method further comprises: the first relay terminal receiving end-to-end QoS related information from a remote terminal.

17. The method of any one of claims 13 to 16, wherein, The first relay terminal sending the first QoS information and / or the second QoS information includes one or more of the following: the first relay terminal sending the second QoS information to the remote terminal; the first relay terminal sending the second QoS information to the second relay terminal; the first relay terminal sending the second QoS information to a network device via the second relay terminal.

18. The method of any one of claims 13 to 17, wherein, The second QoS information determines third QoS information and fourth QoS information.

19. The method of any one of claims 13 to 18, wherein, The first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

20. The method of claim 19, wherein, The second QoS information determines third QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and fourth QoS information including QoS related information of a hop between the first relay terminal and the remote terminal.

21. The method of any one of claims 13 to 18, wherein, The first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

22. The method of claim 21, wherein, The second QoS information determines third QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and fourth QoS information including QoS related information of a hop between the second relay terminal and the network device.

23. The method of claim 18, 20, or 22, wherein, The sending mode of the third QoS information and / or the fourth QoS information includes one or more of the following: The third QoS information and / or the fourth QoS information split by the first relay terminal is sent to one or more of the remote terminal, the second relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the second relay terminal is sent to one or more of the remote terminal, the first relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the network device is sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

24. The method of any one of claims 13 to 23, wherein, The method further includes: The first relay terminal determines the RLC channel configuration according to one or more of the following: Fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal; Different parameter configuration from U2U relay; Same parameter configuration as U2U relay.

25. The method of claim 24, wherein, The RLC channel configuration is used for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

26. A communication method of a multi-hop relay link, comprising: The second relay terminal determines first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link; The second relay terminal sends the first QoS information and / or the second QoS information.

27. The method of claim 26, wherein, The form of the second QoS information includes one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameter, partial QoS parameter.

28. The method of claim 27, wherein, The transmission mode of the first QoS information and / or the second QoS information includes information for different QoS flows or information for different bearers.

29. The method of any one of claims 26-28, wherein, The method further includes one or more of the following: The second relay terminal receives end-to-end QoS related information from the remote terminal; The second relay terminal receives end-to-end QoS related information from the remote terminal through the first relay terminal.

30. The method of any one of claims 26-29, wherein, The second relay terminal sends the first QoS information and / or the second QoS information includes one or more of the following: The second relay terminal sends the second QoS information to the network device; The second relay terminal sends the second QoS information to the first relay terminal; The second relay terminal sends the second QoS information to the remote terminal through the first relay terminal.

31. The method of any one of claims 26-30, wherein, The second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal or the network device.

32. The method of any one of claims 26-31, wherein, The first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

33. The method of claim 32, wherein, The third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

34. The method of any one of claims 26 to 31, wherein, The first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

35. The method of claim 34, wherein, The third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

36. The method of claim 31, 33, or 35, wherein, The transmission mode of the third QoS information and / or the fourth QoS information includes one or more of the following: The third QoS information and / or the fourth QoS information split by the first relay terminal are transmitted to one or more of the remote terminal, the second relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the second relay terminal are transmitted to one or more of the remote terminal, the first relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the network device are transmitted to one or more of the remote terminal, the first relay terminal and the second relay terminal.

37. The method of any one of claims 26 to 36, wherein, The radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following: Fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal; Different parameter configuration from U2U relay; Same parameter configuration as U2U relay.

38. The method of claim 37, wherein, The RLC channel configuration is used for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

39. A communication method of a multi-hop relay link, comprising: A network device determines first QoS information and second QoS information according to end-to-end QoS related information of the multi-hop relay link; The network device transmits the first QoS information and / or the second QoS information.

40. The method of claim 39, wherein, The form of the second QoS information includes one or more of the following: 5QI, PQI, non-standardized PQI, complete QoS parameters, partial QoS parameters.

41. The method of claim 40, wherein, The transmission mode of the first QoS information and / or the second QoS information includes information for different QoS flows or information for different bearers.

42. The method of any one of claims 39-41, wherein, The method further comprises: The network device receives end-to-end QoS related information from a remote terminal through a first relay terminal and / or a second relay terminal.

43. The method of any one of claims 39-42, wherein, The network device transmits the first QoS information and / or the second QoS information, including one or more of the following: The network device transmits the second QoS information to the first relay terminal and / or the second relay terminal; The network device sends the second QoS information to the first relay terminal through the second relay terminal. The network device sends the second QoS information to the remote terminal through the second relay terminal and / or the first relay terminal.

44. The method of any one of claims 39-43, wherein, The second QoS information determines third QoS information and fourth QoS information through the remote terminal, the first relay terminal, the second relay terminal or the network device.

45. The method of any one of claims 39-44, wherein, The first QoS information includes QoS related information of a hop between the network device and the second relay terminal, and the second QoS information includes QoS related information of a link between the second relay terminal and the remote terminal.

46. The method of claim 45, wherein, The third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the remote terminal.

47. The method of any one of claims 39 to 44, wherein, The first QoS information includes QoS related information of a hop between the remote terminal and the first relay terminal, and the second QoS information includes QoS related information of a link between the first relay terminal and the network device.

48. The method of claim 47, wherein, The third QoS information determined by the second QoS information includes QoS related information of a hop between the first relay terminal and the second relay terminal, and the fourth QoS information determined by the second QoS information includes QoS related information of a hop between the second relay terminal and the network device.

49. The method of claim 44, 46, or 48, wherein, The sending mode of the third QoS information and / or the fourth QoS information includes one or more of the following: The third QoS information and / or the fourth QoS information split by the first relay terminal are sent to one or more of the remote terminal, the second relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the second relay terminal are sent to one or more of the remote terminal, the first relay terminal and the network device; The third QoS information and / or the fourth QoS information split by the network device are sent to one or more of the remote terminal, the first relay terminal and the second relay terminal.

50. The method of any one of claims 39 to 49, wherein, The radio link control (RLC) channel configuration in the first relay terminal is determined according to one or more of the following: Fifth QoS information including QoS related information of a hop between the first relay terminal and the second relay terminal, and / or QoS related information of a hop between the remote terminal and the first relay terminal; Different parameter configuration from U2U relay; Same parameter configuration as U2U relay.

51. The method of claim 50, wherein, The RLC channel configuration is used for transmission from the first relay terminal to the remote terminal and transmission from the first relay terminal to the second relay terminal.

52. A remote terminal, comprising: a processing unit configured to determine first QoS information and second QoS information according to end-to-end QoS related information of a multi-hop relay link; a transceiver configured to send the first QoS information and / or the second QoS information.

53. A first relay terminal, comprising: a processing unit configured to determine first QoS information and second QoS information based on end-to-end QoS related information of a multi-hop relay link; a transceiving unit configured to transmit the first QoS information and / or the second QoS information.

54. A second relay terminal, comprising: a processing unit configured to determine first QoS information and second QoS information based on end-to-end QoS related information of a multi-hop relay link; a transceiving unit configured to transmit the first QoS information and / or the second QoS information.

55. A network device, comprising: a processing unit configured to determine first QoS information and second QoS information based on end-to-end QoS related information of a multi-hop relay link; a transceiving unit configured to transmit the first QoS information and / or the second QoS information.

56. A communication device, comprising: a transceiver configured to communicate with other devices, a processor configured to invoke and run a computer program stored in a memory to cause the communication device to perform the method of any one of claims 1-51, and the memory configured to store the computer program.

57. A chip comprising: a processor configured to invoke and run a computer program from a memory to cause a device in which the chip is installed to perform the method of any one of claims 1-51.

58. A computer-readable storage medium configured to store a computer program that, when run by a device, causes the device to perform the method of any one of claims 1-51.

59. A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 1-51.

60. A computer program that causes a computer to perform the method of any one of claims 1-51.

Images