CN108366355A

CN108366355A - Data transmission method for uplink, data send terminal and base station

Info

Publication number: CN108366355A
Application number: CN201710062838.7A
Authority: CN
Inventors: 黄莹; 陈琳; 陈玉芹
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2018-08-03
Anticipated expiration: 2037-01-26
Also published as: WO2018137364A1; CN108366355B

Abstract

The present invention provides data transmission method for uplink, data to send terminal and base station, wherein this method includes：Distal end UE obtains the first carrying information, the distal end UE according to first carrying information to relaying UE transmission data packets, and/or, it relays UE and obtains the second carrying information, the relaying UE, to distal end UE or base station transmission data packet, solves the problems, such as that remote UE or relay UE can not normal transmission datas when remote UE are connect by non-3 GPP access technology with relay UE in the related technology according to second carrying information.

Description

Data transmission method, data transmission terminal, and base station

Technical Field

The present invention relates to the field of communications, and in particular, to a data transmission method, a data transmission terminal, and a base station.

Background

With the development of wireless multimedia services, the demand for high data rate and user experience is increasing, and thus higher requirements are placed on the system capacity and coverage of the conventional cellular network. On the other hand, the popularity of applications such as social networking, near-distance data sharing, local advertising, etc. has increased the need for people to know and communicate with people or things of interest nearby (proximity services). Given the significant limitations of conventional cell-based cellular networks in terms of high data rates and support for proximity services, D2D (Device-to-Device) technology, representing a new direction in future communication technology development, arose. The application of the D2D technology can reduce the burden of the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and improve the robustness of the network infrastructure, and well meet the requirements of the high data rate service and the proximity service.

The D2D technology may operate in licensed or unlicensed bands, allowing multiple D2D capable User devices (i.e., D2D User devices, D2D User Equipment, D2D UEs to directly discover/directly communicate with or without network infrastructure. the D2D technology generally includes D2D discovery technology and D2D communication technology. D2D discovery technology refers to technology for determining/determining mutual proximity between two or more D2D User devices (e.g., within direct D2D communication range) or for determining/determining proximity of a first User device to a second User device. D2D communication technology refers to technology where some or all of the communication data between D2D User devices may communicate directly without the network infrastructure.

Fig. 1 is a schematic diagram of data interaction according to the related art, and as shown in fig. 1, there are three main application scenarios of D2D of R12 and R13:

1) the UE1 and the UE2 perform data interaction under the coverage of a cellular network, and user plane data does not pass through a network infrastructure, as in mode 1 of fig. 1;

2) UE relay transmission in weak/no coverage areas, such as mode 2 in fig. 1, allows a UE4 with poor signal quality to communicate with the network through a UE3 with network coverage nearby, which can help operators to extend coverage and increase capacity;

3) in the event of an earthquake or an emergency, the cellular network cannot work normally, and direct communication between devices is allowed, such as mode 3, UE5, control plane and user plane between UE6 and UE7 in fig. 1, and one-hop or multi-hop data communication is performed without passing through the network infrastructure.

In the above R13D2D scenarios 2) and 3), the D2D UEs may act as relay nodes, enabling remote D2D UEs at the edge of or outside of cellular network coverage to communicate with the network through the relay nodes UEs, and enabling D2D communications among the D2D UEs through the relay nodes UEs. In R13D2D, D2D UE (also called relay UE) as relay node performs data forwarding at layer 3 (i.e. IP layer) according to information such as destination IP address/port number, whereas in the R14D2D technology, consider a network scenario where a wearable device (e.g., MTE or NB-IoT device) accesses through a relay UE, in order to enable operators (i.e. core network elements MME, etc. and base stations) to manage wearable devices (i.e. remote UEs) more efficiently, relay UEs are required to perform routing forwarding of data at layer 2, and consider that non-3GPP access technology (e.g., WIFI or bluetooth) is used between the remote UE and the relay UE, however, the prior art does not provide a bearer configuration and mapping method in which a remote UE is connected to a relay UE through a non-3GPP access technology and a layer 2 data routing forwarding manner is adopted, so that a layer 2 relay function cannot be correctly executed.

Therefore, no solution has been proposed for the problem in the related art that the remote UE or the relay UE cannot normally transmit data when the remote UE is connected to the relay UE through the non-3GPP access technology.

Disclosure of Invention

The embodiment of the invention provides a data transmission method, a data transmission terminal and a base station, which at least solve the problem that remote UE or relay UE can not normally transmit data when the remote UE is connected with the relay UE through a non-3GPP access technology in the related technology.

According to an embodiment of the present invention, there is provided a data transmission method including:

the remote UE acquires first bearing information;

and the remote UE sends a data packet to the relay UE according to the first bearing information.

Optionally, the obtaining, by the remote UE, the first bearer information includes at least one of:

the remote UE acquires the first bearing information in a pre-configured mode;

the remote UE acquires the first bearing information from a base station through a system message;

the remote UE acquires the first bearing information from a base station through a Radio Resource Control (RRC) dedicated signaling;

and the remote UE acquires the first bearing information from a core network element.

Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes:

and the remote UE determines the user priority of the data packet according to the first bearing information and sends the user priority to the relay UE through the WLAN.

Optionally, the first bearer information includes at least one of:

mapping table information between Uu interface QoS grade identification QCI and QoS parameters for WLAN;

and the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.

Optionally, the QoS parameter for the WLAN is user priority UP information.

Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes at least one of:

the remote UE determines the user priority corresponding to the data packet according to the QCI value of the Uu bearer of the remote UE to which the data packet belongs and mapping table information between the Uu interface QCI and the QoS parameter for the WLAN, wherein the QoS parameter for the WLAN comprises the user priority;

when the remote UE carries out WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header;

and the remote UE sends the data packet to the relay UE through the WLAN.

the remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN loaded by the Uu interface of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;

and when the remote UE carries out WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.

According to another embodiment of the present invention, there is provided a data transmission method including:

the relay UE acquires second bearing information;

and the relay UE sends a data packet according to the second bearing information.

Optionally, the obtaining, by the relay UE, the second bearer information includes at least one of:

the relay UE acquires the second bearing information in a pre-configured mode;

the relay UE acquires the second bearing information from a base station through system information or a Radio Resource Control (RRC) dedicated signaling;

and the relay UE acquires the second bearing information from a core network element.

Optionally, the sending, by the relay UE, the data packet according to the second bearer information includes at least one of:

the relay UE sends the data packet to remote UE according to the second bearing information;

and the relay UE sends the data packet to a base station according to the second bearing information.

Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes: the relay UE determines the user priority of the data packet according to the second bearing information and sends the user priority to the remote UE through a WLAN; and/or

The sending, by the relay UE, the data packet to the base station according to the second bearer information includes: and the relay UE determines the Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and sends the Uu interface bearer of the relay UE to the base station, wherein the data packet is received by the relay UE from the remote UE.

Optionally, the second bearer information includes at least one of:

mapping table information between the QoS parameters for the WLAN and the Uu interface QCI;

the Uu interface of the remote UE carries information, wherein the Uu interface of the remote UE carries information including at least one of: carrying identification, logic channel ID, carrying configuration information and QCI information;

a Uu interface of a remote UE bears corresponding Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the relay UE is a Uu interface bearing identifier, a logic channel identifier or QCI information of the relay UE;

mapping table information of Uu interface bearer information of remote UE and Uu interface bearer information of relay UE, wherein the Uu interface bearer information of the remote UE is Uu interface bearer identifier, logical channel identifier or QCI information of the remote UE, and the Uu interface bearer information of the relay UE is Uu interface bearer identifier, logical channel identifier or QCI information of the relay UE;

mapping table information between Uu interface QCI and QoS parameters for WLAN.

Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes:

the relay UE determines a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or the received Uu bearing information of the relay UE of the remote UE data and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;

and the relay UE encapsulates the QoS parameter value for the WLAN in a MAC header and sends the QoS parameter value to the remote UE when the WLAN MAC layer data is encapsulated.

Optionally, before the relay UE sends the data packet to the remote UE according to the second bearer information, the method further includes at least one of:

the relay UE obtains Uu bearing information of the remote UE by analyzing a data packet of the remote UE received from a base station;

and the relay UE receives Uu bearing information of the remote UE from a base station through RRC private signaling.

Optionally, the sending, by the relay UE, the data packet to the base station according to the second bearer information includes one of:

the relay UE analyzes a QoS parameter for the WLAN carried in a Media Access Control (MAC) header of the data packet, determines a QCI value corresponding to the data packet according to mapping table information between the QoS parameter for the WLAN and a Uu interface QCI, and sends the data packet to the base station through the Uu bearer of the relay UE with the QCI value;

the relay UE analyzes Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and the data packet is sent to the base station through the Uu bearing of the relay UE with the QCI value;

the relay UE determines the Uu interface bearer of the remote UE to which the received data packet belongs, determines QCI information of the bearer to which the received data packet belongs according to the Uu interface bearer information of the remote UE obtained from a base station, and sends the data packet to the base station through the Uu bearer of the relay UE with the QCI value;

the relay UE determines a Uu interface bearer of a remote UE to which a received data packet belongs, determines the Uu interface bearer of the relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sends the data packet to the base station through the Uu interface bearer of the relay UE;

the relay UE analyzes the Uu interface bearing information of the remote UE in the received data packet, determines the Uu interface bearing of the relay UE for forwarding the data packet according to the mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sends the data packet to the base station through the Uu interface bearing of the relay UE.

and the base station sends bearing information to the UE, wherein the bearing information is used for the UE to send a data packet.

Optionally, the sending, by the base station, bearer information to the UE includes:

the base station sends first bearing information to remote UE, wherein the first bearing information is used for the remote UE to send a data packet;

and the base station sends second bearing information to the relay UE, wherein the second bearing information is used for the relay UE to send a data packet.

Optionally, the first bearer information includes at least one of:

Optionally, the QoS parameter for the WLAN is user priority UP information.

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

According to another embodiment of the present invention, there is provided a data transmission terminal applied to a remote UE, including:

the first acquisition module is used for acquiring first bearing information;

and the first sending module is used for sending a data packet to the relay UE according to the first bearing information.

Optionally, the first obtaining module includes at least one of:

a first obtaining unit, configured to obtain the first bearer information in a preconfigured manner;

a second obtaining unit, configured to obtain the first bearer information from a base station through a system message;

a third obtaining unit, configured to obtain, by the remote UE, the first bearer information from a base station through a radio resource control RRC dedicated signaling;

a fourth obtaining unit, configured to obtain, by the remote UE, the first bearer information from a core network element.

Optionally, the first sending module is further configured to

And determining the user priority of the data packet according to the first bearing information, and sending the user priority to the relay UE through the WLAN.

Optionally, the first bearer information includes at least one of:

Optionally, the QoS parameter for the WLAN is user priority UP information.

Optionally, the first sending module is further configured to

Determining a user priority corresponding to the data packet according to a QCI value borne by a Uu of the remote UE to which the data packet belongs and mapping table information between a Uu interface QCI and QoS parameters for the WLAN, wherein the QoS parameters for the WLAN comprise the user priority;

when WLAN MAC layer data encapsulation is carried out, the user priority is encapsulated in an MAC header;

and sending the data packet to the relay UE through the WLAN.

Optionally, the first sending module is further configured to

According to another embodiment of the present invention, there is provided a data transmission terminal applied to a relay UE, including:

the second obtaining module is used for obtaining second bearing information;

and the second sending module is used for sending the data packet according to the second bearing information.

Optionally, the second obtaining module includes at least one of:

a fifth obtaining unit, configured to obtain the second bearer information in a preconfigured manner;

a sixth obtaining unit, configured to obtain the second bearer information from the base station through a system message or a radio resource control RRC dedicated signaling;

a seventh obtaining unit, configured to obtain the second bearer information from a core network element.

Optionally, the second sending module includes at least one of:

a first sending unit, configured to send the data packet to a remote UE according to the second bearer information;

and the second sending unit is used for sending the data packet to the base station according to the second bearing information.

Optionally, the first sending unit is further configured to determine a user priority of the data packet according to the second bearer information, and send the user priority to the remote UE through a WLAN;

the second sending unit is further configured to determine a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and send the Uu interface bearer of the relay UE to the base station, where the data packet is received by the relay UE from the remote UE.

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

Optionally, the first sending unit is further configured to

Determining a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or the received Uu bearing information of the relay UE of the remote UE data and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;

and encapsulating the QoS parameter value for the WLAN in a MAC header and sending the QoS parameter value to the remote UE when the WLAN MAC layer is encapsulated.

Optionally, the apparatus further comprises at least one of:

the analysis module is used for obtaining Uu bearing information of the remote UE by analyzing the data packet of the remote UE received from the base station;

a receiving module, configured to receive Uu bearer information of the remote UE from a base station through an RRC dedicated signaling.

Optionally, the second sending unit is further configured to

Analyzing QoS parameter information for the WLAN carried in a Media Access Control (MAC) header of the data packet, determining a QCI value corresponding to the data packet according to mapping table information between the QoS parameter for the WLAN and a Uu interface QCI, and sending the data packet to the base station through the Uu bearer of the relay UE with the QCI value; or,

analyzing Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and sending the data packet to the base station through the Uu bearing of the relay UE with the QCI value; or,

determining Uu interface bearing of remote UE to which a received data packet belongs, determining QCI information of the bearing to which the received data packet belongs according to Uu interface bearing information of the remote UE obtained from a base station, and sending the data packet to the base station through the Uu bearing of the relay UE with the QCI value; or,

determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining a Uu interface bearer of a relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sending the data packet to the base station through the Uu interface bearer of the relay UE; or,

analyzing Uu interface bearing information of remote UE in a received data packet, determining Uu interface bearing of relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sending the data packet to the base station through the Uu interface bearing of the relay UE.

According to another embodiment of the present invention, there is provided a base station including:

a third sending module, configured to send first bearer information to a remote UE, where the first bearer information is used for the remote UE to send a data packet;

a fourth sending module, configured to send second bearer information to the relay UE, where the second bearer information is used for the relay UE to send a data packet.

Optionally, the first bearer information includes at least one of:

mapping table information between the Uu interface scale value QCI and the QoS parameters for the WLAN;

The optional QoS parameter for WLAN is user priority UP information.

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

According to the invention, the remote UE acquires the first bearing information, the remote UE sends the data packet to the relay UE according to the first bearing information, and/or the relay UE acquires the second bearing information, the relay UE sends the data packet to the remote UE or the base station according to the second bearing information, and sends data through the bearing information, so that the problem that the remote UE or the relay UE cannot normally send data when the remote UE is connected with the relay UE through a non-3GPP access technology in the related technology is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic diagram of data interaction according to the related art;

fig. 2 is a first flowchart of a data transmission method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a data transmission method according to an embodiment of the present invention;

fig. 4 is a first block diagram of a data transmission terminal according to an embodiment of the present invention;

fig. 5 is a block diagram one of a data transmission terminal according to a preferred embodiment of the present invention;

fig. 6 is a block diagram two of a data transmission terminal according to an embodiment of the present invention;

fig. 7 is a block diagram two of a data transmission terminal according to a preferred embodiment of the present invention;

fig. 8 is a block diagram three of a data transmission terminal according to a preferred embodiment of the present invention;

fig. 9 is a block diagram of a base station according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example one

In this embodiment, an uplink control information transmission method is provided, and fig. 2 is a first flowchart of a data transmission method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

step S202, the remote UE acquires first bearing information;

step S204, the remote UE sends a data packet to the relay UE according to the first bearing information.

the remote UE acquires the first bearing information in a pre-configured mode;

Optionally, the first bearer information includes at least one of:

Optionally, the QoS parameter for the WLAN is user priority UP information.

and the remote UE sends the data packet to the relay UE through the WLAN.

According to another embodiment of the present invention, a data transmission method is provided, and fig. 3 is a second flowchart of the data transmission method according to the embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:

step S302, the relay UE acquires second bearing information;

step S304, the relay UE sends a data packet according to the second bearing information.

the relay UE acquires the second bearing information in a pre-configured mode;

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

a base station sends first bearing information to a remote UE, wherein the first bearing information is used for the remote UE to send a data packet; and/or the presence of a gas in the gas,

Optionally, the first bearer information includes at least one of:

Optionally, the QoS parameter for the WLAN is user priority UP information.

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

In an embodiment of the present invention, a computer storage medium is further provided, where the computer storage medium may store an execution instruction, where the execution instruction is used to execute implementation steps of the data transmission method in the foregoing embodiment.

According to another embodiment of the present invention, there is provided a data transmission terminal applied to a remote UE, and fig. 4 is a block diagram i of the data transmission terminal according to the embodiment of the present invention, as shown in fig. 4, including:

a first obtaining module 42, configured to obtain first bearer information;

and a first sending module 44, configured to send a data packet to the relay UE according to the first bearer information.

Fig. 5 is a first block diagram of a data transmission terminal according to a preferred embodiment of the present invention, and as shown in fig. 5, the first obtaining module 42 includes at least one of the following:

a first obtaining unit 52, configured to obtain the first bearer information in a preconfigured manner;

a second obtaining unit 54, configured to obtain the first bearer information from the base station through a system message or a radio resource control RRC dedicated signaling;

a third obtaining unit 56, configured to obtain the first bearer information from a base station through a radio resource control, RRC, dedicated signaling by the remote UE;

a fourth obtaining unit 58, configured to obtain, by the remote UE, the first bearer information from a core network element.

Optionally, the first sending module 44 is further configured to

Optionally, the first bearer information includes at least one of:

Optionally, the QoS parameter for the WLAN is user priority UP information.

Optionally, the first sending module 44 is further configured to

and sending the data packet to the relay UE through the WLAN.

Optionally, the first sending module 44 is further configured to

According to another embodiment of the present invention, there is provided a data transmission terminal applied to a relay UE, and fig. 6 is a block diagram ii of the data transmission terminal according to the embodiment of the present invention, as shown in fig. 6, including:

a second obtaining module 62, configured to obtain second bearer information;

a second sending module 64, configured to send a data packet according to the second bearer information.

Fig. 7 is a second block diagram of the data sending terminal according to the preferred embodiment of the present invention, and as shown in fig. 7, the second obtaining module 62 includes at least one of the following:

a fifth obtaining unit 72, configured to obtain the second bearer information in a preconfigured manner;

a sixth obtaining unit 74, configured to obtain the second bearer information from the base station through a system message or a radio resource control RRC dedicated signaling;

a seventh obtaining unit 76, configured to obtain the second bearer information from a core network element.

Fig. 8 is a block diagram three of a data transmission terminal according to a preferred embodiment of the present invention, and as shown in fig. 8, the second transmission module 64 includes at least one of the following:

a first sending unit 82, configured to send the data packet to a remote UE according to the second bearer information;

a second sending unit 84, configured to send the data packet to a base station according to the second bearer information.

Optionally, the first sending unit 82 is further configured to determine a user priority of the data packet according to the second bearer information, and send the user priority to the remote UE through a WLAN;

the second sending unit 84 is further configured to determine, according to the second bearer information, a Uu interface bearer of the relay UE corresponding to the data packet, and send the Uu interface bearer of the relay UE to the base station, where the data packet is received by the relay UE from the remote UE.

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

Optionally, the first sending unit 82 is further configured to

Optionally, the apparatus further comprises at least one of:

Optionally, the second sending unit 84 is further configured to

According to another embodiment of the present invention, a base station is provided, and fig. 9 is a block diagram of a base station according to an embodiment of the present invention, as shown in fig. 9, the base station includes a third transmitting module 92 and a fourth transmitting module 94, each of which is briefly described below.

A third sending module 92, configured to send first bearer information to a remote UE, where the first bearer information is used for the remote UE to send a data packet;

a fourth sending module 94, configured to send second bearer information to the relay UE, where the second bearer information is used for the relay UE to send a data packet.

Optionally, the first bearer information includes at least one of:

Optionally, the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

In the embodiment of the invention, remote UE is connected with relay UE through a non-3GPP access technology and adopts the bearing configuration and mapping problem under a layer 2 data routing forwarding mode. Compared with the prior art, the method and the system can ensure that the layer 2 data routing forwarding under the condition that the remote UE is connected with the relay UE through the non-3GPP access technology is correctly executed, and the operator network can effectively manage and control the QoS of the remote UE. The problems of bearer configuration and mapping under the condition that the remote UE is connected with the relay UE through a non-3GPP access technology and a layer 2 data routing forwarding mode is adopted are solved. Compared with the prior art, the method and the system can ensure that the layer 2 data routing forwarding under the condition that the remote UE is connected with the relay UE through the non-3GPP access technology is correctly executed, and the operator network can effectively manage and control the QoS of the remote UE.

Example one

The embodiment describes a first method for how a remote UE sends a data packet to a relay UE, where the remote UE and the relay UE may communicate using a non-3GPP access technology, such as WIFI or bluetooth. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, by using the method of this embodiment, the process of sending the data packet to the relay UE by the remote UE is as follows:

the upper layer of the Remote UE generates a data packet, and the data packet needs to be sent to the network side or other UEs through the relay of the relay UE. Therefore, the remote UE needs to send the data packet to the relay UE first. Specifically, the remote UE transmits a data packet generated by a higher layer to the relay UE through WLAN communication. In order to ensure the QoS of data transmission, when performing WLAN MAC layer data encapsulation, the data packet of the remote UE needs to be corresponding to the corresponding QoS parameter for the WLAN and sent to the relay UE.

The Remote UE may obtain a mapping table between the Uu interface QCI parameter and a QoS parameter (e.g., user priority, UP) for the WLAN in advance, and the Remote UE may obtain the mapping table in a pre-configured manner, or may obtain the mapping table from a core network element (e.g., ProSe Function), or may obtain the mapping table from the base station through system message or RRC dedicated signaling.

The Remote UE determines a user priority value corresponding to the packet according to the QCI value carried by the packet and a mapping table between a Uu interface QCI parameter and a QoS parameter (e.g., user priority, UP) for the WLAN, which are obtained in advance, and encapsulates the user priority value in the MAC header when performing WLAN MAC layer data encapsulation. The remote UE then transmits the data packet to the relay UE through the WLAN.

Example two

In this embodiment, a second method for how the remote UE sends the data packet to the relay UE is described, where the remote UE and the relay UE may communicate using a non-3GPP access technology, such as WIFI or bluetooth. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, with the method of this embodiment, the process of sending the data packet to the relay UE by the remote UE is as follows:

the upper layer of the Remote UE generates a data packet, and the data packet needs to be sent to the network side or other UEs through the relay of the relay UE. Therefore, the remote UE needs to send the data packet to the relay UE first. Specifically, the remote UE transmits a data packet generated by a higher layer to the relay UE through WLAN communication. In order to ensure QoS for data transmission, when WLAN MAC layer data encapsulation is performed, a data packet of remote UE needs to be mapped to a corresponding QoS parameter for WLAN and sent to relay UE.

When configuring an EPS bearer/Uu bearer for a remote UE, a base station configures a QoS parameter (e.g., user priority, UP) for the remote UE, where the QoS parameter corresponds to/is associated with the bearer, and is used for the WLAN. The base station can send the EPS load/Uu load of the remote UE and the corresponding QoS parameter for the WLAN to the remote UE through the RRC reconfiguration message.

The Remote UE determines a user priority value corresponding to the data packet according to a bearer to which the data packet belongs and a QoS parameter (e.g., user priority, UP) for the WLAN corresponding to the bearer configured by the base station, and encapsulates the user priority value in the MAC header when performing WLAN MAC layer data encapsulation. The remote UE then transmits the data packet to the relay UE through the WLAN.

EXAMPLE III

In this embodiment, a first method for relay UE to send a data packet of remote UE to a base station is described, where non-3GPP access technology communication, such as WIFI and bluetooth, may be used between the remote UE and the relay UE. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, under the method of this embodiment, the process of sending the data packet to the base station by the relay UE is as follows:

and the Relay UE receives the data packet sent by the remote UE, recognizes that the data packet needs to be forwarded to the base station, and forwards the data packet of the remote UE to the base station through the Uu bearer of the Relay UE. In order to ensure QoS for data transmission, the relay UE needs to correspond a data packet received from the remoteUE to a Uu bearer of the relay UE with corresponding QoS and send the data packet to the base station.

The Relay UE may obtain a mapping table between QoS parameters (e.g., user priority, UP) for the WLAN and Uu interface QCI parameters in advance, and the Relay UE may obtain the mapping table in a pre-configured manner, or may obtain the mapping table from a core network element (e.g., ProSe Function), or may obtain the mapping table from the base station through system messages or RRC dedicated signaling.

After receiving a data packet sent by a remote UE, Relay UE parses QoS parameter information (e.g., user priority, UP) for WLAN carried in a MAC header of the data packet, and determines a QCI value corresponding to the data packet according to a mapping table between a QoS parameter for WLAN and a Uu interface QCI parameter obtained in advance. And then the relay UE sends the data packet of the remote UE to the base station through the Uu bearer of the relay UE with the corresponding QCI value.

Example four

The second method is that the relay UE sends the data packet of the remote UE to the base station in a relay manner, and the remote UE and the relay UE may communicate by using a non-3GPP access technology, such as WIFI or bluetooth. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, under the method of this embodiment, the process of sending the data packet to the base station by the relay UE is as follows:

the Relay UE receives the data packet sent by the remote UE, and if the data packet is identified to be forwarded to the base station, the data packet of the remote UE needs to be forwarded to the base station through the Uu bearer of the Relay UE. In order to ensure QoS for data transmission, relay UE needs to send a data packet received from remote UE to Uu bearer of relay UE with corresponding QoS to the base station. It is assumed that the data packet sent by the remote UE to the relay UE includes bearer information of the remote UE, for example, Uu bearer identifier or logical channel identifier or CP/UP indication, QCI, etc. Preferably, the adapter layer header of the data packet sent by the remote UE to the relay UE includes the bearer information of the remote UE.

The Relay UE may obtain a mapping table between Uu bearer information of the remote UE and Uu bearer information of the Relay UE in advance, where the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (e.g., prose function), or may obtain the mapping table from the base station through a system message or RRC dedicated signaling. The Uu bearer information of the remote UE may be a Uu bearer identifier, a logical channel identifier, a CP/UP indication, or a QCI value, and the Uu bearer information of the relay UE may be a Uu bearer identifier, a logical channel identifier, a CP/UP indication, or a QCI value.

After receiving a data packet sent by a remote UE, Relay UE analyzes Uu bearing information of the remote UE carried in an MAC header of the data packet, and determines Uu bearing of the remote UE corresponding to the data packet according to a mapping table between the obtained Uu bearing information of the remote UE and the Uu bearing information of the remote UE. And then the relay UE sends the data packet of the remote UE to the base station through the Uu bearer of the relay UE.

EXAMPLE five

In this embodiment, a third method is described in which the relay UE sends a data packet of the remote UE to the base station in a relay manner, and the remote UE and the relay UE may communicate using a non-3GPP access technology, such as WIFI or bluetooth. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, under the method of this embodiment, the process of sending the data packet to the base station by the relay UE is as follows:

the Relay UE receives the data packet sent by the remote UE, and if the data packet is identified to be forwarded to the base station, the data packet of the remote UE needs to be forwarded to the base station through the Uu bearer of the Relay UE. In order to ensure QoS for data transmission, relay UE needs to send a data packet received from remote UE to Uu bearer of relay UE with corresponding QoS to the base station. It is assumed that the data packet sent by the remote UE to the relay UE includes bearer information of the remote UE, for example, a Uu bearer id or a logical channel id or a CP/UP indication. Preferably, the adapter layer header of the data packet sent by the remote UE to the relay UE includes the bearer information of the remote UE.

The base station may send the EPS bearer/Uu bearer information of the remote UE to the relay UE connected to the remote UE, where the EPS bearer/Uu bearer information of the remote UE includes, but is not limited to, an EPS/Uu bearer identifier or a logical channel identifier or a CP/UP indication of the remote UE, or QCI information, etc. Optionally, the Relay UE may obtain a mapping table between Uu bearer information of the remote UE and Uu bearer information of the Relay UE in advance, where the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (e.g., ProSe Function), or may obtain the mapping table from the base station through system information or RRC dedicated signaling. The Uu bearer information of the remote UE may be a Uu bearer identifier, a logical channel identifier, a CP/UP indication, or a QCI value, and the Uu bearer information of the relay UE may be a Uu bearer identifier, a logical channel identifier, a CP/UP indication, or a QCI value.

After receiving the data packet sent by the remote UE, the Relay UE analyzes the Uu bearing information of the remote UE carried in the MAC header of the data packet, and determines the QCI value corresponding to the data packet according to the obtained Uu bearing information of the remote UE in advance. And then the relay UE optionally determines the Uu bearer of the relay UE corresponding to the data packet according to a mapping table between the Uu bearer information of the relay UE and the Uu bearer information of the relay UE or according to the UE implementation, and sends the data packet of the relay UE to the base station through the Uu bearer of the relay UE.

EXAMPLE six

In this embodiment, a first method for relay UE to send a data packet of a remote UE received from a base station to the remote UE is described, where the remote UE and the relay UE may communicate using a non-3GPP access technology, such as WIFI or bluetooth. Taking the WIFI technology that can be used between the remote UE and the relay UE as an example, with the method of this embodiment, a process in which the relay UE sends a data packet of the remote UE received from the base station to the remote UE is as follows:

the Relay UE receives the data packet of the remote UE from the base station, and if the data packet is identified to be forwarded to the remote UE, the data packet of the remote UE needs to be forwarded to the remote UE through a PC5 interface between the remote UE and the Relay UE. In order to ensure QoS for data transmission, the relay UE needs to map a data packet received from the base station to a corresponding QoS parameter for the WLAN and send the data packet to the remote UE.

The Relay UE may obtain a mapping table between the Uu interface QCI parameter and a QoS parameter (e.g., user priority, UP) for the WLAN in advance, and the Relay UE may obtain the mapping table in a pre-configured manner, or may obtain the mapping table from a core network element (e.g., ProSe Function), or may obtain the mapping table from the base station through system messages or RRC dedicated signaling.

After receiving a data packet of a remote UE sent by a base station, optionally, the remote UE parses out Uu bearer information (e.g., a Uu bearer identifier, or a logical channel identifier, or a QCI value) of the remote UE carried in the data packet, and determines a QoS parameter value (e.g., user priority, UP) for the WLAN corresponding to the data packet according to the Uu bearer information of the remote UE, or the Uu bearer information (e.g., a Uu bearer identifier, or a logical channel identifier, or a QCI value) of the remote UE receiving the remote UE data, and a mapping table between a previously obtained Uu interface QCI parameter and a QoS parameter for the WLAN. The relay UE then sends the QoS parameter value for WLAN to the remote UE with the QoS parameter value included in the MAC header at WLAN MAC layer data encapsulation.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A data transmission method, comprising:

the remote UE acquires first bearing information;

2. The method of claim 1, wherein the remote UE acquiring the first bearer information comprises at least one of:

the remote UE acquires the first bearing information in a pre-configured mode;

3. The method of claim 1, wherein the sending, by the remote UE, the data packet to the relay UE according to the first bearer information comprises:

4. The method according to any of claims 1 to 3, wherein the first bearer information comprises at least one of:

5. The method of claim 4, wherein the sending, by the remote UE, the data packet to the relay UE according to the first bearer information comprises at least one of:

and the remote UE sends the data packet to the relay UE through the WLAN.

6. The method of claim 4, wherein the sending, by the remote UE, the data packet to the relay UE according to the first bearer information comprises:

7. A data transmission method, comprising:

the relay UE acquires second bearing information;

8. The method of claim 7, wherein the relay UE obtaining the second bearer information comprises at least one of:

the relay UE acquires the second bearing information in a pre-configured mode;

9. The method of claim 7, wherein the relaying UE transmitting the data packet according to the second bearer information comprises at least one of:

10. The method of claim 9,

the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes: the relay UE determines the user priority of the data packet according to the second bearing information and sends the user priority to the remote UE through a WLAN; and/or

11. The method according to any of claims 7 to 10, wherein the second bearer information comprises at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

12. The method of claim 11, wherein the relaying UE sending the data packet to the remote UE according to the second bearer information comprises:

and the relay UE encapsulates the QoS parameter value for the WLAN in an MAC header and sends the QoS parameter value to the remote UE when WLAN MAC layer data is encapsulated.

13. The method of claim 12, wherein before the relay UE sends the data packet to the remote UE according to the second bearer information, the method further comprises at least one of:

14. The method of claim 11, wherein the relay UE sending the data packet to the base station according to the second bearer information comprises one of:

15. A data transmission method, comprising:

16. The method of claim 15, wherein the first bearer information comprises at least one of:

17. The method of claim 16 wherein the QoS parameter for WLAN is user priority UP information.

18. The method of claim 15, wherein the second bearer information comprises at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

19. A data transmission terminal, characterized by comprising:

the first acquisition module is used for acquiring first bearing information;

20. The apparatus of claim 19, wherein the first obtaining module comprises at least one of:

21. The apparatus according to claim 19 or 20, wherein the first bearer information comprises at least one of:

22. The apparatus of claim 21, wherein the first sending module is further configured to send the first message

and sending the data packet to the relay UE through the WLAN.

23. The apparatus of claim 21, wherein the first sending module is further configured to send the first message

24. A data transmission terminal, characterized by comprising:

the second obtaining module is used for obtaining second bearing information;

25. The apparatus of claim 24, wherein the second obtaining module comprises at least one of:

26. The apparatus of claim 24, wherein the second sending module comprises at least one of:

27. The apparatus according to any of claims 24 to 26, wherein the second bearer information comprises at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.

28. The apparatus of claim 27, wherein the first sending unit is further configured to send the first message to a receiver

29. The apparatus of claim 28, further comprising at least one of:

30. The apparatus of claim 27, wherein the second sending unit is further configured to send the second message to the second sending unit

determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining a Uu interface bearer of a relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sending the data packet to the base station through the Uu interface bearer of the relay UE; or analyzing Uu interface bearing information of the remote UE in the received data packet, determining Uu interface bearing of the relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sending the data packet to the base station through the Uu interface bearing of the relay UE.

31. A base station, comprising:

32. The apparatus of claim 31,

the first bearer information includes at least one of:

a Uu interface of the remote UE bears corresponding QoS parameter information for the WLAN;

the second bearer information includes at least one of:

mapping table information between Uu interface QCI and QoS parameters for WLAN.