CN110913363A - Method and equipment for determining wireless access technology used by direct communication interface - Google Patents

Method and equipment for determining wireless access technology used by direct communication interface Download PDF

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Publication number
CN110913363A
CN110913363A CN201811075474.7A CN201811075474A CN110913363A CN 110913363 A CN110913363 A CN 110913363A CN 201811075474 A CN201811075474 A CN 201811075474A CN 110913363 A CN110913363 A CN 110913363A
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China
Prior art keywords
direct communication
access technology
communication interface
terminal
wireless access
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Chinese (zh)
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赵亚利
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Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201811075474.7A priority Critical patent/CN110913363A/en
Priority to PCT/CN2019/092108 priority patent/WO2020052309A1/en
Publication of CN110913363A publication Critical patent/CN110913363A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Abstract

The invention discloses a method and equipment for determining a wireless access technology used by a direct communication interface, which are used for solving the problem of how to select which wireless access technology to use under the condition that a terminal supports multiple wireless access technologies at the direct communication interface in the prior art. In the embodiment of the invention, if the terminal determines that the terminal supports multiple wireless access technologies at the direct communication interface, the terminal selects the wireless access technology used at the direct communication interface from the multiple wireless access technologies, and correspondingly, the network side also needs to determine the wireless access technology used at the direct communication interface and needs to ensure the consistency of the understanding of the terminal and the network side on the wireless access technology used at the direct communication interface by the terminal, so that the network side carries out reasonable resource allocation according to the wireless access technology used at the direct communication interface by the terminal.

Description

Method and equipment for determining wireless access technology used by direct communication interface
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for determining a wireless access technology used by a direct communication interface.
Background
In a 5G (fifth generation mobile communication technology) system, the capability of a terminal for direct communication at a direct communication interface is different, some terminals only support an LTE (Long Term Evolution) wireless access technology at the direct communication interface, some terminals only support an NR (New Radio) wireless access technology at the direct communication interface, and some terminals support both the LTE wireless access technology and the NR wireless access technology at the direct communication interface.
When a terminal has a data transmission requirement on a direct communication interface, for a terminal that supports only one radio access technology on the direct communication interface, it is needless to say that the terminal can only use the radio access technology for data transmission on the direct communication interface, but for a terminal that supports more than two radio access technologies simultaneously on the direct communication interface, when the terminal has a data transmission requirement on the direct communication interface, the terminal needs to select which radio access technology is used on the direct communication interface.
However, there is no clear solution in the prior art how to select which radio access technology to use when the terminal supports multiple radio access technologies simultaneously at the direct communication interface.
Disclosure of Invention
The invention provides a method and equipment for determining a wireless access technology used by a direct communication interface, which are used for solving the problem of how to select which wireless access technology to use under the condition that a terminal supports multiple wireless access technologies at the wireless communication interface simultaneously in the prior art.
In a first aspect, an embodiment of the present invention provides a method for determining a radio access technology used by a direct communication interface, where the method includes:
the terminal determines the wireless access technology supported by the terminal at the direct communication interface;
and if the terminal supports multiple wireless access technologies on the direct communication interface, the terminal selects a wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies.
In the method, the terminal firstly determines the wireless access technology supported by the terminal at the direct communication interface, if the terminal is determined to support a plurality of wireless access technologies at the direct communication interface, the terminal selects the wireless access technology used by the terminal at the direct communication interface from the plurality of wireless access technologies, and when the terminal simultaneously supports the plurality of wireless access technologies at the direct communication interface, the terminal selects the wireless access technology used by the terminal at the direct communication interface from the plurality of wireless access technologies supported by the determined terminal at the direct communication interface, so that the terminal uses the selected wireless access technology to perform data transmission at the direct communication interface, correspondingly, the network side also needs to determine the wireless access technology used at the direct communication interface by the terminal and needs to ensure the consistency of understanding of the wireless access technology used by the terminal at the direct communication interface by the terminal and the network side, and then the network side carries out reasonable resource allocation according to the wireless access technology used by the terminal at the direct communication interface.
In a possible implementation manner, the determining, by the terminal, a radio access technology supported by the terminal at the direct communication interface includes:
and the terminal determines the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
The terminal determines the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information, so that when the terminal determines that the terminal supports multiple wireless access technologies at the direct communication interface according to the terminal capability information, the terminal selects one wireless access technology from the multiple wireless access technologies as the wireless access technology used by the terminal at the direct communication interface for data transmission.
In one possible implementation, the terminal selects a radio access technology used by itself in the direct communication interface from the plurality of radio access technologies, including:
the terminal takes a preset wireless access technology as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X (vehicle to X) service identification and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication Service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication Service and the wireless access technology used by the direct communication interface; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to a resource allocation mode expected to be used; or
And the terminal takes the wireless access technology notified by the network side equipment as the wireless access technology used by the terminal at the direct communication interface.
In the method, 8 methods are provided for selecting the wireless access technology used by the terminal in the direct communication interface from the determined multiple wireless access technologies, and any one of the methods can be used for selecting the wireless access technology used in the direct communication interface from the multiple wireless access technologies supported by the terminal when the terminal simultaneously supports the multiple wireless access technologies in the direct communication interface, so that the terminal can transmit data in the direct communication interface by using the selected wireless access technology; accordingly, the network side device also needs to determine the radio access technology used by the terminal at the direct communication interface, and needs to ensure consistency of understanding of the terminal and the network side device on the radio access technology used by the terminal at the direct communication interface, so that the network side performs reasonable resource allocation according to the radio access technology used by the terminal at the direct communication interface.
In a possible implementation manner, the content of the V2X service Identifier is a PSID (Provider service Identifier, service Identifier provided by a service Provider) or ITS-AIDs (Intelligent Transport System-Application Identifier).
In the method, the content of the V2X service identifier is PSID or ITS-AIDs, so that the terminal can use the radio access technology used by the direct communication interface corresponding to the current V2X service as the radio access technology used by itself on the direct communication interface according to the mapping relationship between the PSID and the radio access technology used by the direct communication interface; or the wireless access technology used by the direct communication interface corresponding to the current V2X service is used as the wireless access technology used by the direct communication interface according to the mapping relation between the ITS-AIDs and the wireless access technology used by the direct communication interface.
In a possible implementation manner, the terminal, according to a mapping relationship between the QoS parameter of the direct communication service and the radio access technology used by the direct communication interface, takes the radio access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the radio access technology used by the terminal at the direct communication interface, and includes:
if the terminal direct communication interface only has one direct communication service transmission requirement, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, the terminal selects the service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
According to the method, when the terminal uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, the wireless access technology used by the terminal at the direct communication interface is totally divided into three conditions, and the terminal determines the wireless access technology used by the terminal at the direct communication interface based on the three conditions.
In one possible implementation manner, the terminal selects a radio access technology used by itself in the direct communication interface from multiple radio access technologies according to a resource allocation mode desired to be used, including:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, the terminal selects any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
If the resource allocation mode expected to be used by the terminal is a network-scheduled resource allocation mode, the terminal takes the radio access technology used by the interface between the terminal and the network-side device as the radio access technology used by the terminal at the direct communication interface.
The method provides two modes that the terminal determines the wireless access technology used by the terminal on the direct communication interface according to the resource allocation mode expected to be used, namely that the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, and the resource allocation mode expected to be used by the terminal is the resource allocation mode scheduled by the network.
In a possible implementation manner, the terminal uses the radio access technology notified by the network side device as the radio access technology used by the terminal on the direct communication interface, including:
the terminal takes the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of the terminal at a direct communication interface; or
And the terminal takes the wireless access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the wireless access technology of the terminal on a direct communication interface.
In the method, when the terminal uses the radio access technology notified by the network side device as the radio access technology used by the terminal at the direct communication interface, the network side device may notify the terminal in two ways, namely, a display way or an implicit way.
In a possible implementation manner, before the terminal uses the radio access technology notified by the network-side device as the radio access technology used by the terminal in the direct communication interface, the method further includes:
and the terminal informs the network side equipment of the wireless access technology supported by the terminal at the direct communication interface.
In the method, before the terminal uses the radio access technology notified by the network-side device as the radio access technology used by the terminal at the direct communication interface, the network-side device needs to know which radio access technologies are supported by the terminal at the direct communication interface, so the terminal needs to notify the network-side device of the radio access technology supported by the terminal at the direct communication interface.
In one possible implementation, the method further includes:
if the terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to the expected used resource allocation mode; the terminal informs the network side device of the radio access technology used by itself on the direct communication interface.
In the method, when the terminal determines the radio access technology of the terminal at the direct communication interface, if the network side device does not know the radio access technology of the direct communication interface determined by the terminal, the terminal needs to notify the network side device of the determined radio access technology of the direct communication interface, so that the network side device performs reasonable resource allocation according to the radio access technology used by the terminal at the direct communication interface.
In one possible implementation, the radio access technology includes one of:
a direct communication interface wireless access technology based on LTE Rel (Long Term Evolution Release) -14, a direct communication interface wireless access technology based on LTE Rel-15 and a direct communication interface wireless access technology based on a new air interface NR.
The above method provides three forms of the radio access technologies in the embodiment of the present invention, that is, the radio access technology supported by the terminal at the direct communication interface may be part or all of the above three radio access technologies.
In a second aspect, a method for determining a direct communication interface according to an embodiment of the present invention includes:
the network side equipment determines that the terminal needs to use a direct communication interface;
and the network side equipment determines the wireless access technology used by the terminal at the direct communication interface.
According to the method, the network side equipment firstly determines that the terminal needs to use the direct communication interface and then determines the wireless access technology used by the terminal at the direct communication interface, so that when the terminal supports multiple wireless access technologies at the direct communication interface, the network side equipment determines the wireless access technology used by the terminal at the direct communication interface, and further the network side equipment performs reasonable resource allocation according to the wireless access technology used by the terminal at the direct communication interface.
In a possible implementation manner, the determining, by the network-side device, a radio access technology used by the terminal on the direct communication interface includes:
the network side equipment takes a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment receives the wireless access technology used by the terminal at a direct communication interface and notified by the terminal; or
And the network side equipment determines the wireless access technology used by the terminal at the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
The method provides 4 ways for the network side equipment to determine the wireless access technology of the terminal at the direct communication interface, and the network side equipment can determine the wireless access technology of the terminal at the direct communication interface according to any one of the 4 ways, so that the network side equipment can reasonably allocate resources according to the determined wireless access technology used by the terminal at the direct communication interface.
In a possible implementation manner, the determining, by the network side device, a radio access technology used by the terminal on the direct communication interface before the radio access technology used by the direct communication interface according to the radio access technology of the direct communication interface supported by the terminal, further includes:
and the network side equipment receives the wireless access technology supported by the terminal at the direct communication interface notified by the terminal.
In the method, since the network side device determines the radio access technology used by the terminal at the direct communication interface according to the radio access technology supported by the direct communication interface of the terminal, the network side device needs to know the radio access technology supported by the terminal at the direct communication interface, so that the network side device receives the radio access technology supported by the terminal at the direct communication interface, which is notified by the terminal.
In a possible implementation manner, the determining, by the network side device, a radio access technology used by the terminal on the direct communication interface according to the radio access technology of the direct communication interface supported by the terminal, further includes:
and the network side equipment informs the terminal of the determined wireless access technology used by the terminal on the direct communication interface.
In the method, after the network side device determines the radio access technology used by the terminal at the direct communication interface according to the radio access technology of the direct communication interface supported by the terminal, the network side device notifies the determined radio access technology used by the terminal at the direct communication interface to the terminal, so that the terminal performs data transmission at the direct communication interface by using the radio access technology notified by the network side device.
In one possible implementation, the radio access technology includes one of:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
The method described above provides three forms of radio access technologies in the embodiment of the present invention, that is, the radio access technology used by the direct communication interface of the terminal determined by the network side device is one of the three forms, and notifies the terminal of one of the three determined forms of radio access technology, so that the terminal performs data transmission on the direct communication interface through the radio access technology.
In a third aspect, an apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes: a processor, a memory, and a transceiver;
wherein the processor is configured to read a program in the memory and execute:
determining a wireless access technology supported by the terminal at the direct communication interface;
and if the terminal supports a plurality of wireless access technologies on the direct communication interface, selecting the wireless access technology used by the terminal on the direct communication interface from the plurality of wireless access technologies.
In one possible implementation, the processor is specifically configured to:
and determining the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
In one possible implementation, the processor is specifically configured to:
the method comprises the steps that a preset wireless access technology is used as a wireless access technology used by a terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
According to the mapping relation between the sending parameter Tx Profile identification and the wireless access technology used by the direct communication interface, the wireless access technology used by the direct communication interface corresponding to the sending parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the V2X service identification and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or
Selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
Selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; or
And the wireless access technology notified by the network side equipment is used as the wireless access technology used by the terminal on the direct communication interface.
In one possible implementation, the content of the V2X service identification is PSID or ITS-AIDs.
In one possible implementation, the processor is specifically configured to:
if the terminal direct communication interface only has one direct communication service transmission requirement, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If a plurality of direct communication service transmission requirements exist in a terminal direct communication interface, selecting a service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then taking a wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as a wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
In one possible implementation, the processor is specifically configured to:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, selecting any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
And if the resource allocation mode expected to be used by the terminal is the resource allocation mode scheduled by the network, using the wireless access technology used by the interface between the terminal and the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
In one possible implementation, the processor is specifically configured to:
taking the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of a direct communication interface; or
And taking the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology of the terminal on the direct communication interface.
In one possible implementation, the processor is further configured to:
and after informing the network side equipment that the terminal is in the wireless access technology supported by the direct communication interface, taking the wireless access technology informed by the network side equipment as the wireless access technology used by the terminal in the direct communication interface.
In one possible implementation, the processor is further configured to:
if the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the wireless access technology used by the direct communication interface corresponding to the current V2X service is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, using the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or the terminal selects the wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to the implementation algorithm; or selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; the network side device is informed of the radio access technology used by the terminal at the direct communication interface.
In one possible implementation, the radio access technology includes one of:
the system comprises a direct communication interface wireless access technology based on LTE Rel-14, a direct communication interface wireless access technology based on LTE Rel-15 and a direct communication interface wireless access technology based on NR.
In a fourth aspect, an apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes: a processor, a memory, and a transceiver;
wherein the processor is configured to read a program in the memory and execute:
determining that the terminal needs to use a direct communication interface;
a radio access technology used by the terminal at the direct communication interface is determined.
In one possible implementation, the processor is specifically configured to:
taking a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal on a direct communication interface; or
Receiving a wireless access technology used by the terminal on a direct communication interface and notified by the terminal; or
And determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
In one possible implementation, the processor is further configured to:
and after the terminal which receives the notification of the terminal is in the wireless access technology supported by the direct communication interface, determining the wireless access technology used by the terminal in the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
In one possible implementation, the processor is further configured to:
before notifying the determined wireless access technology used by the terminal on the direct communication interface to the terminal, determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
In one possible implementation, the radio access technology includes one of:
the system comprises a direct communication interface wireless access technology based on LTE Rel-14, a direct communication interface wireless access technology based on LTE Rel-15 and a direct communication interface wireless access technology based on NR. In a fifth aspect, another apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes:
a first determination module: the wireless access technology used for determining the terminal to support at the direct communication interface;
a selection module: and the wireless access technology selection module is used for selecting the wireless access technology used by the terminal in the direct communication interface from the plurality of wireless access technologies if the terminal supports the plurality of wireless access technologies in the direct communication interface.
In a sixth aspect, another apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes:
an interface determination module: the terminal is used for determining that the terminal needs to use the direct communication interface;
an access determination module: for determining the radio access technology used by the terminal at the direct communication interface.
In a seventh aspect, an embodiment of the present invention further provides a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of determining any one of the radio access technologies used by the direct communication interface.
In addition, for technical effects brought by any one implementation manner of the third aspect to the seventh aspect, reference may be made to technical effects brought by different implementation manners of the first aspect and the second aspect, and details are not described here again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic system structure diagram of a method for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first terminal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first network-side device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second terminal according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second network-side device according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a method of a terminal side in a method for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a method of a network side in a method for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some terms in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.
(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning.
(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.
(3) "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The communication link between the equipment is a Sidelink (direct communication link), and the wireless interface corresponding to the direct communication equipment is a Sidelink interface; the cellular communication link between the network side device and the direct communication device is uulink (link between the terminal and the network device), and the wireless interface corresponding to the network side device and the direct communication device is Uu (interface between the terminal and the network device).
Three scenarios are proposed when Uu interface assisted direct communication interface resource allocation is discussed in the 3GPP NR V2X (the 3rd Generation Partnership Project New radio Project to X, third Generation Partnership Project New air interface vehicle to everything technology) standing document, as shown in table 1:
Figure BDA0001800650300000151
TABLE 1
As can be seen from table 1, the radio access technology used by the Uu link and the radio access technology used by the sildelink may be arbitrarily combined, for example, the radio access technology used by the Uu link is LTE, and the radio access technology used by the sildelink is NR.
For the uulink, once the terminal determines the camping cell, the radio access technology used by the uulink is determined, and at this time, if the terminal has a data transmission requirement on the direct communication interface and the terminal supports both the radio access technology NR and the radio access technology LTE on the direct communication interface, it is necessary to make clear what radio access technology the terminal should select on the direct communication interface for data transmission.
The application scenario described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not form a limitation on the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
In view of the foregoing scenario, the present application provides a system structure diagram for determining a radio access technology used by a direct communication interface, specifically as shown in fig. 1, where the system includes:
a terminal 10 for determining a radio access technology supported by itself at a direct communication interface; if a plurality of radio access technologies are supported at the direct communication interface, a radio access technology used by itself at the direct communication interface is selected from the plurality of radio access technologies.
A network side device 20, configured to determine that the terminal needs to use a direct communication interface; a radio access technology used by the terminal at the direct communication interface is determined.
In the embodiment of the invention, a terminal determines a wireless access technology supported by the terminal at a direct communication interface, if the terminal supports multiple wireless access technologies at the direct communication interface, the terminal selects the wireless access technology used by the terminal at the direct communication interface from the multiple wireless access technologies, correspondingly, when the terminal has a direct communication requirement, a network side device determines that the terminal needs to use the direct communication interface, then determines the wireless access technology used by the terminal at the direct communication interface, and because the terminal selects the wireless access technology used at the direct communication interface from the multiple wireless access technologies supported by the terminal and the network side device determines the wireless access technology used by the terminal at the direct communication interface, and the understanding consistency of the terminal and the network side device on the wireless access technology used at the direct communication interface needs to be ensured, so that the terminal directly uses the wireless access technology selected by the terminal or the wireless access technology determined by the network side device The communication interface transmits data, and then the network side equipment is ensured to reasonably allocate resources according to the wireless access technology used by the terminal at the direct communication interface.
In the embodiment of the invention, the terminal is a device with a direct communication function, can be deployed on land and comprises an indoor or outdoor, handheld or vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical treatment (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), etc.; but also UE (User Equipment) in various forms, Mobile Station (MS), and terminal Equipment (terminal device).
The network side device is a device for providing a wireless communication function for the terminal, and includes but is not limited to: a gbb in 5G, a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved node B or home node B, HNB), a BaseBand Unit (BBU), a transmission point (TRP), a Transmission Point (TP), a mobile switching center (msc), and the like.
For the direct communication device, the device can be on-line or off-line, or part of the device is on-line and part of the device is off-line. So-called on-network, i.e. devices participating in direct communication are located within the 3GPP direct communication carrier coverage; so-called talk-around, i.e. devices participating in direct communication are not within 3GPP direct communication carrier coverage.
Typical direct communication scenarios include the following three:
direct communication, i.e. devices communicate one-to-one;
group communication, i.e. one device can send the same data to all devices in one communication group at a time;
broadcast communication, i.e. one device can send the same data to all nearby devices at once.
The direct communication equipment in the embodiment of the invention is on-network direct communication equipment; the direct communication scenario is any one of the above three direct communication scenarios.
In implementation, the terminal determines the radio access technology supported by itself on the direct communication interface, and may determine the radio access technology according to the terminal capability information.
The terminal capability information here is what radio access technology the terminal can support, such as supporting only LTE radio access technology; support only NR radio access technologies; both LTE and NR radio access technologies are supported.
The wireless access technology in the embodiment of the invention is a direct communication interface wireless access technology based on LTE Rel-14, a direct communication interface wireless access technology based on LTE Rel-15 and a direct communication interface wireless access technology based on NR.
The terminal supports some or all of the above three radio access technologies.
The terminal determines a radio access technology supported by itself at a direct communication interface, and if the terminal supports multiple radio access technologies at the direct communication interface, for example, the terminal supports both an LTE Rel-14 based radio access technology and an NR based radio access technology at the direct communication interface, the terminal needs to select a radio access technology used at the direct communication interface of the terminal from the multiple radio access technologies.
In the first mode, the terminal uses a preset wireless access technology as a wireless access technology used by the terminal at a direct communication interface.
Here, the preset radio access technology is one of radio access technologies supported by the terminal at the direct communication interface, for example, there are three radio access technologies supported by the terminal at the direct communication interface, which are respectively a direct communication interface radio access technology based on LTE Rel-14, a direct communication interface radio access technology based on LTE Rel-15, and a direct communication interface radio access technology based on NR, and then the preset radio access technology is one of a direct communication interface radio access technology based on LTE Rel-14, a direct communication interface radio access technology based on LTE Rel-15, and a direct communication interface radio access technology based on NR.
It should be noted that the preset radio access technology may be a technology in which a terminal and a network side device are in good agreement in advance, for example, for the terminal 1, a direct communication interface of the terminal 1 supports two radio access technologies, a direct communication interface radio access technology based on LTE Rel-14 and a direct communication interface radio access technology based on NR, before the terminal has a direct communication requirement, the terminal and the network side device are in good agreement in advance to use the direct communication interface radio access technology based on NR, and when the terminal 1 has a direct communication requirement, the direct communication interface uses the direct communication interface radio access technology based on NR to perform data transmission.
In order to facilitate understanding that the terminal uses the preset radio access technology as the radio access technology used by itself in the direct communication interface, a specific embodiment is described below.
The first embodiment is as follows:
for terminals on the network, such as a Radio Resource Control IDLE (RRC _ IDLE) state terminal, an RRC _ INACTIVE (Radio Resource Control INACTIVE) state terminal, and an RRC _ CONNECTED (Radio Resource Control CONNECTED) state terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a Radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies at the direct communication interface, for example, supports both the LTE Rel-14 based direct communication interface wireless access technology and the NR based direct communication interface wireless access technology, the terminal uses a preset wireless access technology as the wireless access technology used by the terminal at the direct communication interface, for example, the preset wireless access technology is the NR based direct communication interface wireless access technology, and the terminal uses the NR based direct communication interface wireless access technology as the wireless access technology used by the terminal at the direct communication interface.
It should be noted that the preset radio access technology may be a radio access technology used between the terminal and the network side device, that is, a radio access technology used by the uulink; or a radio access technology that is fixedly used, for example, the terminal supports both the LTE Rel-14 based direct communication interface radio access technology and the NR based direct communication interface radio access technology at the direct communication interface, the preset radio access technology may be the direct communication interface radio access technology that is fixedly used based on LTE Rel-14 or the direct communication interface radio access technology that is fixedly used based on NR; but also a radio access technology of a protocol-agreed direct communication interface or a radio access technology of a direct communication interface pre-configured in the terminal.
When the terminal uses the preset wireless access technology as the wireless access technology used by the terminal at the direct communication interface, correspondingly, the network side device uses the wireless access technology preset by the terminal as the wireless access technology used by the terminal at the direct communication interface, that is, the network side device determines that the wireless access technology used by the terminal at the direct communication interface is the preset wireless access technology.
And after the network side equipment determines the wireless access technology used by the terminal on the direct communication interface, reasonable resource allocation is carried out according to the wireless access technology used by the terminal on the direct communication interface.
In the second method, the terminal uses the radio access technology used in the interface between the terminal and the network side device as the radio access technology used in the direct communication interface.
Since the terminal is connected to the network-side device because the network-side terminal is present, and the radio access technology used by the interface between the terminal and the network-side device has already been determined after the terminal is connected to the network-side device, when the terminal selects the radio access technology used by itself at the direct communication interface from among the plurality of radio access technologies supported by the terminal, the radio access technology used by the interface between the terminal and the network-side device can be used as the radio access technology used by the terminal at the direct communication interface.
In order to facilitate understanding of the radio access technology used by the terminal on the interface between the terminal and the network-side device as the radio access technology used by the terminal on the direct communication interface, a specific embodiment is described below.
Example two:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple radio access technologies at the direct communication interface, such as both the direct communication interface radio access technology based on LTE Rel-14 and the direct communication interface radio access technology based on NR, the terminal uses the radio access technology used at the interface between the terminal and the network-side device as the radio access technology itself used at the direct communication interface.
For example, the terminal supports two wireless access technologies at a direct communication interface, namely a direct communication interface wireless access technology based on LTE Rel-14 and a direct communication interface wireless access technology based on NR, when the terminal selects the wireless access technology used by the terminal at the direct communication interface, the terminal firstly judges whether the wireless access technology used by the interface between the terminal and the network side equipment is the direct communication interface wireless access technology based on LTE Rel-14 or the direct communication interface wireless access technology based on NR, and if the wireless access technology used by the interface between the terminal and the network side equipment is the direct communication interface wireless access technology based on LTE Rel-14, the terminal takes the direct communication interface wireless access technology based on LTE Rel-14 as the wireless access technology used by the terminal at the direct communication interface; if the wireless access technology used by the interface between the terminal and the network side equipment is the NR-based direct communication interface wireless access technology, the terminal takes the NR-based direct communication interface wireless access technology as the wireless access technology used by the terminal on the direct communication interface.
Correspondingly, when the terminal has a data transmission requirement on the direct communication interface, the terminal reports the requirement to the network side equipment, after the network side equipment receives the requirement reported by the terminal, the network side equipment determines that the terminal needs to use the direct communication interface, and the network side equipment determines the wireless access technology used by the terminal on the direct communication interface.
When the terminal uses the radio access technology of the interface between the terminal and the network side device as the radio access technology used by the terminal at the direct communication interface, correspondingly, the network side device uses the radio access technology used by the interface between the terminal and the network side device as the radio access technology used by the terminal at the direct communication interface.
And after the network side equipment determines the wireless access technology used by the terminal on the direct communication interface, reasonable resource allocation is carried out according to the wireless access technology used by the terminal on the direct communication interface.
And thirdly, the terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal in the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface.
It should be noted that, when the terminal sends a data packet, the data packet corresponds to a sending parameter Tx Profile, the TxProfile has a Tx Profile identifier, the terminal determines the radio access technology used by the terminal in the direct communication interface according to a mapping relationship between the Tx Profile identifier and the radio access technology used by the direct communication interface, and uses the radio access technology as the radio access technology supported by the terminal in the direct communication interface.
In order to facilitate understanding of the mapping relationship between the transmission parameter Tx Profile identifier and the radio access technology used by the direct communication interface, the terminal uses the radio access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identifier of the current packet as the radio access technology used by the terminal in the direct communication interface, which is described in the following with a specific embodiment.
Example three:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies at the direct communication interface, for example, supports both the direct communication interface wireless access technology based on LTE Rel-14 and the direct communication interface wireless access technology based on NR, the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identifier of the current packet is used as the wireless access technology used by the terminal at the direct communication interface according to the mapping relationship between the transmission parameter Tx Profile identifier and the wireless access technology used by the direct communication interface.
For example, the terminal supports two wireless access technologies at the direct communication interface, based on the direct communication interface wireless access technology of LTE Rel-14 and the direct communication interface wireless access technology based on NR, the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identifier a in the mapping relationship between the transmission parameter Tx Profile identifier and the wireless access technology used by the direct communication interface is the direct communication interface wireless access technology based on NR, when the terminal has data transmission at the direct communication interface, the transmission parameter Tx Profile identifier corresponding to the data packet is a, and the terminal uses the direct communication interface wireless access technology based on NR as the wireless access technology used by the terminal at the direct communication interface.
And after the terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface, the terminal informs the network side equipment of the wireless access technology used by the terminal at the direct communication interface.
For example, the terminal determines, according to a mapping relationship between the transmission parameter Tx Profile identifier and the radio access technology used by the direct communication interface, that the radio access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identifier of the current packet is the NR-based direct communication interface radio access technology, and then the terminal uses the NR-based direct communication interface radio access technology as the radio access technology used by the terminal on the direct communication interface, and notifies the network-side device of the NR-based direct communication interface radio access technology, so that the network-side device knows that the radio access technology used by the terminal on the direct communication interface is the NR-based direct communication interface radio access technology.
Accordingly, the network side device receives the wireless access technology used by the terminal on the direct communication interface notified by the terminal, and then performs reasonable resource allocation according to the wireless access technology used by the terminal on the direct communication interface.
And fourthly, the terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface.
It should be noted that the content of the V2X service identifier is PSID or ITS-AIDs.
In implementation, the terminal may store a mapping relationship between the V2X service identifier and a radio access technology used by the direct communication interface, and first determine the V2X service identifier corresponding to the current V2X service, then determine the radio access technology used by the direct communication interface corresponding to the V2X service identifier according to the mapping relationship between the V2X service identifier and the radio access technology used by the direct communication interface, and finally use the determined radio access technology used by the direct communication interface as the radio access technology used by the terminal itself in the direct communication interface.
In order to facilitate understanding of the mapping relationship between the V2X service identifier and the radio access technology used by the direct communication interface, the radio access technology used by the direct communication interface corresponding to the current V2X service is used as the radio access technology used by the terminal on the direct communication interface.
Example four:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies at the direct communication interface, such as supporting both the direct communication interface wireless access technology based on LTE Rel-14 and the direct communication interface wireless access technology based on NR, the terminal uses the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by itself at the direct communication interface according to the mapping relationship between the V2X service identifier and the wireless access technology used by the direct communication interface.
For example, the terminal supports two wireless access technologies at the direct communication interface, namely a direct communication interface wireless access technology based on LTE Rel-14 and a direct communication interface wireless access technology based on NR, and the mapping relationship between the V2X service identifier stored in the terminal and the wireless access technology used by the direct communication interface is that the wireless access technology corresponding to the V2X service identifier a is the direct communication interface wireless access technology based on LTE Rel-14, the wireless access technology corresponding to the V2X service identifier B is the direct communication interface wireless access technology based on NR, and if the V2X service identifier corresponding to the current V2X service of the terminal is the V2X service identifier a, the terminal uses the direct communication interface wireless access technology based on LTE Rel-14 as the wireless access technology used by the direct communication interface.
It should be noted that the radio access technology used by one direct communication interface may correspond to one V2X service identifier, or may correspond to multiple V2X service identifiers, for example, the radio access technology corresponding to the V2X service identifier a is a direct communication interface radio access technology based on LTERel-14, and the radio access technology corresponding to the V2X service identifier C is also a direct communication interface radio access technology based on LTERel-14.
And after the terminal uses the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface, the terminal informs the network side equipment of the wireless access technology used by the direct communication interface.
Accordingly, the network side device receives the wireless access technology used by the terminal on the direct communication interface notified by the terminal, and then performs reasonable resource allocation according to the wireless access technology used by the terminal on the direct communication interface.
And the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
It should be noted here that currently, there are three QoS parameters of the direct communication interface, which are PPPP (ProSe priority Per Packet, priority of each direct communication Packet), PPPR (ProSe reliability Per Packet, reliability of each direct communication Packet), and PDB (Packet Delay budget), and as the standard advances, QoS parameters of other direct communication interfaces are introduced later.
In the embodiment of the present invention, the QoS parameters include, but are not limited to, some or all of the following:
PPPP, PPPR, PDB, other QoS parameters for the direct communication interface that may be introduced in subsequent standards.
When the terminal uses the radio access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the radio access technology used by the terminal itself at the direct communication interface according to the mapping relationship between the QoS parameter of the direct communication service and the radio access technology used by the direct communication interface, the terminal can be divided into three situations, which are described below.
In the first situation, when the terminal direct communication interface has only one direct communication service transmission requirement, the terminal uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relationship between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
For example, the terminal supports two wireless access technologies on the direct communication interface, namely a direct communication interface wireless access technology based on LTE Rel-14 and a direct communication interface wireless access technology based on NR. If the wireless access technology used by the corresponding direct communication interface is the direct communication interface wireless access technology based on the LTE Rel-14 when the QoS parameter of the direct communication service of the direct communication interface is 1 and the QoS parameter of the direct communication service is 1 in the mapping relationship between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, the terminal uses the direct communication interface wireless access technology based on the LTE Rel-14 as the wireless access technology used by the terminal on the direct communication interface.
And in case that a plurality of direct communication service transmission requirements exist in a terminal direct communication interface, the terminal selects a service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
For example, the terminal supports two wireless access technologies on the direct communication interface, namely a direct communication interface wireless access technology based on LTE Rel-14 and a direct communication interface wireless access technology based on NR. The terminal has 3 direct communication service transmission requirements at a direct communication interface, namely a direct communication service A, a direct communication service B and a direct communication service C. The service with the highest requirement on the QoS parameters corresponding to the direct communication service A, the direct communication service B and the direct communication service C is the direct communication service A, the QoS parameter of the direct communication service A is 1, the wireless access technology used by the corresponding direct communication interface when the QoS parameter of the direct communication service and the QoS parameter of the wireless access technology used by the direct communication interface are 1 is the direct communication interface wireless access technology based on the LTEREl-14, and then the terminal takes the direct communication interface wireless access technology based on the LTE Rel-14 as the wireless access technology used by the terminal at the direct communication interface.
And in case that the direct communication interface of the terminal has a plurality of direct communication service transmission requirements, aiming at any direct communication service, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
For example, the terminal supports two wireless access technologies on the direct communication interface, namely a direct communication interface wireless access technology based on LTE Rel-14 and a direct communication interface wireless access technology based on NR. The terminal has 3 direct communication service transmission requirements at a direct communication interface, namely a direct communication service A, a direct communication service B and a direct communication service C. Aiming at the direct communication service A, the QoS parameter of the direct communication service A is 1, the wireless access technology used by the corresponding direct communication interface when the QoS parameter of the direct communication service A is 1 in the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface is the direct communication interface wireless access technology based on LTE Rel-14, and when the direct communication interface transmits the direct communication service A, the direct communication interface wireless access technology based on LTE Rel-14 is used as the wireless access technology used by the terminal at the direct communication interface;
for the direct communication service B, the QoS parameter of the direct communication service B is 0, the wireless access technology used by the corresponding direct communication interface is the NR-based direct communication interface wireless access technology when the QoS parameter of the direct communication service B is 0 in the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, and the NR-based direct communication interface wireless access technology is used as the wireless access technology used by the terminal at the direct communication interface when the direct communication interface transmits the direct communication service B;
for the direct communication service C, the QoS parameter of the direct communication service C is 1, and when the terminal transmits the direct communication service C through the direct communication interface, the direct communication interface wireless access technology based on LTE Rel-14 is used as the wireless access technology used by the terminal at the direct communication interface.
After the terminal introduces three situations in which the radio access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service is used as the radio access technology used by the direct communication interface according to the mapping relationship between the QoS parameter of the direct communication service and the radio access technology used by the direct communication interface, the following description is made in a specific embodiment for the convenience of understanding.
Example five:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies at the direct communication interface, such as supporting both the direct communication interface wireless access technology based on LTE Rel-14 and the direct communication interface wireless access technology based on NR, the terminal uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relationship between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
And the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, and informs the network side equipment of the wireless access technology used by the direct communication interface.
Accordingly, the network side device receives the wireless access technology used by the terminal on the direct communication interface notified by the terminal, and then performs reasonable resource allocation according to the wireless access technology used by the terminal on the direct communication interface.
And in the sixth mode, the terminal selects the wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to the implementation algorithm.
In order to facilitate understanding that the terminal selects a radio access technology used in the direct communication interface from a plurality of radio access technologies according to an implementation algorithm, a specific embodiment is described below.
Example six:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies at the direct communication interface, such as supporting both the direct communication interface wireless access technology based on LTE Rel-14 and the direct communication interface wireless access technology based on NR, the terminal selects a wireless access technology that is itself used at the direct communication interface from the multiple wireless access technologies according to an implementation algorithm.
Specifically, the implementation algorithm may depend on the UE implementation, and the considered factors may be: QoS parameters of direct communication traffic of the terminal, radio access technology used by an interface between the terminal and the network side device, and the like.
And after the terminal selects a wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies according to the implementation algorithm, the terminal informs the network side equipment of the wireless access technology used by the direct communication interface.
Accordingly, the network side device receives the wireless access technology used by the terminal on the direct communication interface notified by the terminal, and then performs reasonable resource allocation according to the wireless access technology used by the terminal on the direct communication interface.
And the seventh mode is that the terminal selects the wireless access technology used by the terminal in the direct communication interface according to the expected used resource allocation mode from the multiple wireless access technologies.
The direct communication interface supports two resource allocation modes:
resource allocation pattern of network scheduling: that is, the network allocates resources to the terminal according to the sildelink BSR (buffer Reporting) of the terminal on duty;
the resource allocation mode selected by the terminal independently: namely, the terminal selects one resource from pre-configured or network broadcast transmission resources for the transmission of the direct communication link.
It should be noted here that, for the direct communication interface, if the terminal is on the network, whether using the resource allocation mode scheduled by the network or using the resource allocation mode autonomously selected by the terminal, the wireless resource used by the terminal on the direct communication interface is controlled by the network, and the network side device controls the resource pool allocated by the direct communication interface (the resource allocation mode autonomously selected by the terminal) or the specific resource (the resource allocation mode scheduled by the network) through the Uu interface.
In the embodiment of the present invention, the resource allocation mode that the terminal desires to use may be a resource allocation mode autonomously selected by the terminal, or a resource allocation mode scheduled by a network.
If the resource allocation pattern that the terminal desires to use is a resource allocation pattern that the terminal autonomously selects, the terminal selects any one of radio access technologies from among radio access technologies supported by the terminal as a radio access technology that is itself used in the direct communication interface.
For example, the terminal supports two wireless access technologies used by the direct communication interface at the direct communication interface, namely, the LTE Rel-14-based direct communication interface wireless access technology and the NR-based direct communication interface wireless access technology, and when the terminal selects the wireless access technology used by the terminal at the direct communication interface from the multiple wireless access technologies according to the resource allocation mode desired to be used, the resource allocation mode desired to be used by the terminal is the resource allocation mode selected by the terminal autonomously, the terminal may use the LTE Rel-14-based direct communication interface wireless access technology as the wireless access technology used by the terminal at the direct communication interface, or use the NR-based direct communication interface wireless access technology as the wireless access technology used by the terminal at the direct communication interface.
If the resource allocation pattern that the terminal desires to use is a network-scheduled resource allocation pattern, the terminal uses the radio access technology used at the interface between the terminal and the network-side device as the radio access technology itself used at the direct communication interface.
For example, the terminal supports two wireless access technologies used by the direct communication interface at the direct communication interface, namely an LTE Rel-14-based direct communication interface wireless access technology and an NR-based direct communication interface wireless access technology, when the terminal selects a wireless access technology used by itself at the direct communication interface from multiple wireless access technologies according to a resource allocation mode desired to be used, the resource allocation mode desired to be used by the terminal is a resource allocation mode scheduled by the network, at this time, the wireless access technology used by the direct interface between the terminal and the network-side device is the LTE Rel-14-based direct communication interface wireless access technology, and the terminal uses the LTE Rel-14-based direct communication interface wireless access technology as the wireless access technology used by the terminal at the direct communication interface.
In order to facilitate understanding that the terminal selects a radio access technology, which is used in the direct communication interface by itself, from a plurality of radio access technologies according to a resource allocation pattern desired to be used, the following description is made with reference to a specific embodiment.
Example seven:
for terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple radio access technologies at the direct communication interface, such as both the direct communication interface radio access technology based on LTE Rel-14 and the direct communication interface radio access technology based on NR, the terminal selects a radio access technology that is itself used at the direct communication interface from the multiple radio access technologies according to the resource allocation pattern that is desired to be used.
Specifically, if the resource allocation mode that the terminal desires to use is the resource allocation mode that the terminal autonomously selects, the terminal selects any one of the radio access technologies as the radio access technology that the terminal uses at the direct communication interface; if the resource allocation mode that the terminal desires to use is a network-scheduled resource allocation mode, the terminal uses a radio access technology used at an interface between the terminal and the network-side device as a radio access technology used at a direct communication interface of the terminal.
And after the terminal selects a wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies according to the expected used resource allocation mode, the terminal informs the network side equipment of the wireless access technology used by the direct communication interface.
Accordingly, the network side device receives the wireless access technology used by the terminal on the direct communication interface notified by the terminal, and then performs reasonable resource allocation according to the wireless access technology used by the terminal on the direct communication interface.
And the eighth mode is that the terminal uses the radio access technology notified by the network side device as the radio access technology used by the terminal in the direct communication interface.
In implementation, the network side device notifies the terminal which radio access technology is used at the direct communication interface, and the network side device needs to determine which radio access technology is used at the direct communication interface by the terminal, so that the terminal first notifies the network side device of the radio access technology supported by the terminal at the direct communication interface, such as two radio access technologies supported by the terminal at the direct communication interface, a direct communication interface radio access technology based on LTE Rel-14 and a direct communication interface radio access technology based on NR;
after receiving the radio access technology supported by the direct communication interface of the terminal notified by the terminal, the network side device determines the radio access technology used by the terminal on the direct communication interface, for example, the network side device determines that the radio access technology used by the terminal on the direct communication interface is a direct communication interface radio access technology based on LTE Rel-14;
and the network side equipment informs the determined wireless access technology used by the terminal on the direct communication interface to the terminal, and the wireless access technology is used by the terminal on the direct communication interface after the terminal receives the wireless access technology used by the terminal on the direct communication interface notified by the network side equipment.
When the network side device notifies the terminal of the radio access technology used in the direct communication interface, the radio access technology indicated by the explicit method may be used as the radio access technology in the direct communication interface, or the radio access technology indicated by the implicit method may be used as the radio access technology in the direct communication interface.
In order to facilitate understanding that the terminal uses the radio access technology notified by the network-side device as the radio access technology used by itself on the direct communication interface, a specific embodiment will be described below.
Example eight:
the terminal reports the wireless access technology used by the terminal at the direct communication interface to the network side equipment through the terminal capability.
For terminals on the network, such as an RRC _ IDLE terminal, an RRC _ INACTIVE terminal, and an RRC _ CONNECTED terminal, if there is a data transmission requirement on the direct communication interface of the terminal, the terminal determines, according to the terminal capability information, a radio access technology supported by the terminal on the direct communication interface.
If the terminal only supports one wireless access technology at the direct communication interface, the terminal uses the wireless access technology to transmit data at the direct communication interface; if the terminal supports multiple wireless access technologies on the direct communication interface, such as supporting both the direct communication interface wireless access technology based on LTE Rel-14 and the direct communication interface wireless access technology based on NR, the terminal uses the wireless access technology notified by the network side device as the wireless access technology used by itself on the direct communication interface.
Specifically, the network side device notifies the terminal that the radio access technology used in the direct communication interface may adopt an explicit mode or an implicit mode.
For the explicit mode notification, namely, the network side equipment directly indicates the wireless access technology used by the terminal at the direct communication interface;
for example, for the terminals in the network, the RRC _ IDLE terminal, the RRC _ INACTIVE terminal, and the RRC _ CONNECTED terminal, the indication Information may be carried in a broadcast message, such as MIB (Master Information Block), SIBI (System Information Block 1), SIB related to direct communication (System Information Block), and for the RRC _ CONNECTED terminal, dedicated signaling.
For the implicit notification, the network side device implicitly indicates, through the resource allocation indication information, the radio access technology that the terminal can use on the direct communication interface, such as the format of the resource allocation indication information.
And after the network side equipment determines the wireless access technology used by the terminal on the direct communication interface, reasonable resource allocation is carried out according to the wireless access technology used by the terminal on the direct communication interface.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a radio access technology used by the direct communication interface, because the device is a terminal in the system for determining the radio access technology used by the direct communication interface in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are omitted.
As shown in fig. 2, a first apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes a processor 200, a memory 201, and a transceiver 202;
the processor 200 is responsible for managing the bus architecture and general processing, and the memory 201 may store data used by the processor 200 in performing operations. The transceiver 202 is used to receive and transmit data under the control of the processor 200.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 200 and various circuits of memory represented by memory 201 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 200 is responsible for managing the bus architecture and general processing, and the memory 201 may store data used by the processor 200 in performing operations.
The process disclosed by the embodiment of the invention can be applied to the processor 200, or implemented by the processor 200. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 200. The processor 200 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 200 is configured to read the program in the memory 201 and execute:
determining a wireless access technology supported by the terminal at the direct communication interface;
and if the terminal supports multiple wireless access technologies on the direct communication interface, selecting the wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies.
Optionally, the processor 200 is specifically configured to:
and determining the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
Optionally, the processor 200 is specifically configured to:
the method comprises the steps that a preset wireless access technology is used as a wireless access technology used by a terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
According to the mapping relation between the sending parameter Tx Profile identification and the wireless access technology used by the direct communication interface, the wireless access technology used by the direct communication interface corresponding to the sending parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the V2X service identification and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or
Selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
Selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; or
And the wireless access technology notified by the network side equipment is used as the wireless access technology used by the terminal on the direct communication interface.
Optionally, the content of the V2X service identifier is PSID or ITS-AIDs.
Optionally, the processor 200 is specifically configured to:
if the terminal direct communication interface only has one direct communication service transmission requirement, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If a plurality of direct communication service transmission requirements exist in a terminal direct communication interface, selecting a service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then taking a wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as a wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
Optionally, the processor 200 is specifically configured to:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, selecting any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
If the resource allocation pattern that the terminal desires to use is a network-scheduled resource allocation pattern, the radio access technology used at the interface between the terminal and the network-side device is used as the radio access technology used at the direct communication interface of the terminal.
Optionally, the processor 200 is specifically configured to:
taking the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of a direct communication interface; or
And taking the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology of the direct communication interface.
Optionally, the processor 200 is further configured to:
and after informing the wireless access technology supported by the direct communication interface of the network side equipment terminal, taking the wireless access technology informed by the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
Optionally, the processor 200 is further configured to:
if the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the wireless access technology used by the direct communication interface corresponding to the current V2X service is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, using the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; the network side device is informed of the radio access technology used by the terminal at the direct communication interface.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a radio access technology used by the direct communication interface, because the device is a network side device in the system for determining the radio access technology used by the direct communication interface in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 3, a first apparatus for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention includes a processor 300, a memory 301, and a transceiver 302;
the processor 300 is responsible for managing the bus architecture and general processing, and the memory 301 may store data used by the processor 300 in performing operations. The transceiver 302 is used to receive and transmit data under the control of the processor 300.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 300 and various circuits of memory represented by memory 301 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 301 may store data used by the processor 300 in performing operations.
The processes disclosed in the embodiments of the present invention may be applied to the processor 300, or implemented by the processor 300. In implementation, the steps of the signal processing flow may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 300. The processor 300 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 301, and the processor 300 reads the information in the memory 301 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 300 is configured to read a program in the memory 301 and execute:
determining that the terminal needs to use a direct communication interface;
determining a radio access technology used by the terminal at the direct communication interface.
Optionally, the processor 300 is specifically configured to:
taking a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
Receiving a wireless access technology used by the terminal on a direct communication interface and notified by the terminal; or
And determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the processor 300 is further configured to:
and after the terminal which receives the notification of the terminal is in the wireless access technology supported by the direct communication interface, determining the wireless access technology used by the terminal in the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the processor 300 is further configured to:
before notifying the determined wireless access technology used by the terminal on the direct communication interface to the terminal, determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a radio access technology used by the direct communication interface, because the device is a terminal in the system for determining the radio access technology used by the direct communication interface in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are omitted.
As shown in fig. 4, an embodiment of the present invention provides a structural schematic diagram of an apparatus for determining a radio access technology used by a direct communication interface, where the apparatus includes: the first determination module 400, the selection module 401:
the first determination module 400: the wireless access technology used for determining the terminal to support at the direct communication interface;
the selection module 401: and the wireless access technology selection module is used for selecting the wireless access technology used by the terminal in the direct communication interface from the plurality of wireless access technologies if the terminal supports the plurality of wireless access technologies in the direct communication interface.
Optionally, the first determining module 400 is specifically configured to:
and determining the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
Optionally, the selecting module 401 is specifically configured to:
the method comprises the steps that a preset wireless access technology is used as a wireless access technology used by a terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
According to the mapping relation between the sending parameter Tx Profile identification and the wireless access technology used by the direct communication interface, the wireless access technology used by the direct communication interface corresponding to the sending parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the V2X service identification and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or
Selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
Selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; or
And the wireless access technology notified by the network side equipment is used as the wireless access technology used by the terminal on the direct communication interface.
Optionally, the content of the V2X service identifier is PSID or ITS-AIDs.
Optionally, the selecting module 401 is specifically configured to:
if the terminal direct communication interface only has one direct communication service transmission requirement, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If a plurality of direct communication service transmission requirements exist in a terminal direct communication interface, selecting a service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then taking a wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as a wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
Optionally, the selecting module 401 is specifically configured to:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, selecting any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
If the resource allocation pattern that the terminal desires to use is a network-scheduled resource allocation pattern, the radio access technology used at the interface between the terminal and the network-side device is used as the radio access technology used at the direct communication interface of the terminal.
Optionally, the selecting module 401 is specifically configured to:
taking the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of a direct communication interface; or
And taking the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology used by the terminal on the direct communication interface.
Optionally, the selecting module 401 is further configured to:
and after informing the wireless access technology supported by the direct communication interface of the network side equipment terminal, taking the wireless access technology informed by the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
Optionally, the selecting module 401 is further configured to:
if the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the wireless access technology used by the direct communication interface corresponding to the current V2X service is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, using the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface; or selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; the network side device is informed of the radio access technology used by the terminal at the direct communication interface.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a radio access technology used by the direct communication interface, because the device is a network side device in the system for determining the radio access technology used by the direct communication interface in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 5, an embodiment of the present invention provides a structural schematic diagram of an apparatus for determining a radio access technology used by a direct communication interface, where the apparatus includes: interface determination module 500, access determination module 501:
interface determination module 500: the terminal is used for determining that the terminal needs to use the direct communication interface;
access determination module 501: for determining a radio access technology used by the terminal at the direct communication interface.
Optionally, the access determining module 501 is specifically configured to:
taking a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
Receiving a wireless access technology used by the terminal on a direct communication interface and notified by the terminal; or
And determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the access determining module 501 is further configured to:
and after the terminal which receives the notification of the terminal is in the wireless access technology supported by the direct communication interface, determining the wireless access technology used by the terminal in the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the access determining module 501 is further configured to:
before notifying the determined wireless access technology used by the terminal on the direct communication interface to the terminal, determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Based on the same inventive concept, the embodiment of the present invention further provides a method for determining a radio access technology used by a direct communication interface, and since the method corresponds to the method for determining the radio access technology used by the direct communication interface in the embodiment of the present invention corresponding to a terminal, and the principle of the method for solving the problem is similar to that of the terminal, the implementation of the method can refer to the implementation of the terminal, and repeated details are not repeated.
As shown in fig. 6, a flowchart of a method for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention specifically includes the following steps:
step 600, the terminal determines the wireless access technology supported by the terminal at the direct communication interface;
step 601, if the terminal supports multiple wireless access technologies at the direct communication interface, the terminal selects a wireless access technology used by itself at the direct communication interface from the multiple wireless access technologies.
Optionally, the determining, by the terminal, a radio access technology supported by the terminal at the direct communication interface includes:
and the terminal determines the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
Optionally, the selecting, by the terminal, a radio access technology used by the terminal in the direct communication interface from the plurality of radio access technologies includes:
the terminal takes a preset wireless access technology as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to a resource allocation mode expected to be used; or
And the terminal takes the wireless access technology notified by the network side equipment as the wireless access technology used by the terminal at the direct communication interface.
Optionally, the content of the V2X service identifier is PSID or ITS-AIDs.
Optionally, the terminal uses, according to the mapping relationship between the QoS parameter of the direct communication service and the radio access technology used by the direct communication interface, the radio access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the radio access technology used by the terminal on the direct communication interface, where the method includes:
if the terminal direct communication interface only has one direct communication service transmission requirement, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, the terminal selects the service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
Optionally, the selecting, by the terminal, a radio access technology used by the terminal in the direct communication interface from multiple radio access technologies according to the resource allocation mode expected to be used includes:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, the terminal selects any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
If the resource allocation mode expected to be used by the terminal is a network-scheduled resource allocation mode, the terminal takes the radio access technology used by the interface between the terminal and the network-side device as the radio access technology used by the terminal at the direct communication interface.
Optionally, the terminal uses the radio access technology notified by the network side device as the radio access technology used by itself on the direct communication interface, including:
the terminal takes the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of a direct communication interface; or
And the terminal takes the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology of the direct communication interface.
Optionally, before the terminal uses the radio access technology notified by the network side device as the radio access technology used by the terminal on the direct communication interface, the method further includes:
and the terminal informs the network side equipment of the wireless access technology supported by the terminal at the direct communication interface.
Optionally, the method further includes:
if the terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to the expected used resource allocation mode; the terminal informs the network side device of the radio access technology used by itself on the direct communication interface.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Based on the same inventive concept, the embodiment of the present invention further provides a method for determining a radio access technology used by a direct communication interface, and since the method corresponds to the method for determining a network side device of the radio access technology used by the direct communication interface in the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the network side device, the implementation of the method may refer to the implementation of the network side device, and repeated parts are not described again.
As shown in fig. 7, a flowchart of a method for determining a radio access technology used by a direct communication interface according to an embodiment of the present invention specifically includes the following steps:
step 700, the network side equipment determines that the terminal needs to use a direct communication interface;
step 701, the network side device determines a radio access technology used by the terminal at the direct communication interface.
Optionally, the determining, by the network side device, a radio access technology used by the terminal at the direct communication interface includes:
the network side equipment takes a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment receives the wireless access technology used by the terminal at a direct communication interface and notified by the terminal; or
And the network side equipment determines the wireless access technology used by the terminal at the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
Optionally, the determining, by the network side device, a radio access technology used by the terminal at the direct communication interface according to the radio access technology of the direct communication interface supported by the terminal, further includes:
and the network side equipment receives the wireless access technology supported by the terminal at the direct communication interface notified by the terminal.
Optionally, the determining, by the network side device, a radio access technology used by the terminal at the direct communication interface according to the radio access technology of the direct communication interface supported by the terminal, further includes:
and the network side equipment receives the wireless access technology supported by the terminal at the direct communication interface notified by the terminal.
Optionally, the radio access technology includes one of the following:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
Embodiments of the present invention also include a computer-readable medium for determining a radio access technology used by a direct communication interface, having stored thereon a computer program that, when executed by a processor, performs the steps of the method described above with respect to fig. 6, or performs the steps of the method described above with respect to fig. 7.
The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.
Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (33)

1. A method for determining a radio access technology used by a direct communication interface, the method comprising:
the terminal determines the wireless access technology supported by the terminal at the direct communication interface;
and if the terminal supports multiple wireless access technologies on the direct communication interface, the terminal selects a wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies.
2. The method of claim 1, wherein the terminal determining the radio access technology supported by itself on the direct communication interface comprises:
and the terminal determines the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
3. The method of claim 1, wherein the terminal selects a radio access technology from the plurality of radio access technologies to use on the direct communication interface, comprising:
the terminal takes a preset wireless access technology as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the vehicle-to-everything V2X service identification and the wireless access technology used by the direct communication interface; or
The terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
The terminal selects a wireless access technology used by the terminal in a direct communication interface from a plurality of wireless access technologies according to a resource allocation mode expected to be used; or
And the terminal takes the wireless access technology notified by the network side equipment as the wireless access technology used by the terminal at the direct communication interface.
4. The method of claim 3, wherein the content of the V2X service identification is a service identification PSID provided by a service provider or an intelligent transportation system application identification ITS-AIDs.
5. The method of claim 3, wherein the terminal uses the radio access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the radio access technology used by the terminal at the direct communication interface according to the mapping relationship between the QoS parameter of the direct communication service and the radio access technology used by the direct communication interface, and the method comprises:
if the terminal direct communication interface only has one direct communication service transmission requirement, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, the terminal selects the service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then uses the wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
6. The method of claim 3, wherein the terminal selects the radio access technology from the plurality of radio access technologies to be used by itself on the direct communication interface according to the resource allocation pattern desired to be used, comprising:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode selected by the terminal, the terminal selects any one wireless access technology as the wireless access technology used by the terminal on the direct communication interface; or
If the resource allocation mode expected to be used by the terminal is a network-scheduled resource allocation mode, the terminal takes the radio access technology used by the interface between the terminal and the network-side device as the radio access technology used by the terminal at the direct communication interface.
7. The method of claim 3, wherein the terminal uses the radio access technology notified by the network-side device as the radio access technology used by itself on the direct communication interface, and includes:
the terminal takes the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of a direct communication interface; or
And the terminal takes the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology of the direct communication interface.
8. The method of claim 7, wherein the terminal uses the radio access technology notified by the network-side device as the radio access technology used by itself in the direct communication interface, and further comprising
And the terminal informs the network side equipment of the wireless access technology supported by the terminal at the direct communication interface.
9. The method of claim 3, further comprising:
if the terminal takes the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or the terminal takes the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or the terminal selects a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to the expected used resource allocation mode; the terminal informs the network side device of the radio access technology used by itself on the direct communication interface.
10. The method according to any of claims 1 to 9, wherein the radio access technology comprises one of:
the wireless access system comprises a direct communication interface wireless access technology based on a long-term evolution release LTE Rel-14, a direct communication interface wireless access technology based on LTE Rel-15 and a direct communication interface wireless access technology based on a new air interface NR.
11. A method for determining a radio access technology used by a direct communication interface, the method comprising:
the network side equipment determines that the terminal needs to use a direct communication interface;
and the network side equipment determines the wireless access technology used by the terminal at the direct communication interface.
12. The method of claim 11, wherein the network side device determining the radio access technology used by the terminal on the direct communication interface comprises:
the network side equipment takes a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment takes a wireless access technology used by an interface between the terminal and the network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
The network side equipment receives the wireless access technology used by the terminal at a direct communication interface and notified by the terminal; or
And the network side equipment determines the wireless access technology used by the terminal at the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
13. The method of claim 12, wherein the network side device determines, according to the radio access technology of the direct communication interface supported by the terminal, that the terminal is prior to the radio access technology used by the direct communication interface, further comprising:
and the network side equipment receives the wireless access technology supported by the terminal at the direct communication interface notified by the terminal.
14. The method of claim 12, wherein the network side device determines, according to the radio access technology of the direct communication interface supported by the terminal, the radio access technology used by the terminal on the direct communication interface, and further comprising:
and the network side equipment informs the terminal of the determined wireless access technology used by the terminal on the direct communication interface.
15. The method according to any of claims 11 to 14, wherein the radio access technology comprises one of:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
16. An apparatus for determining a radio access technology used by a direct communication interface, the apparatus comprising: a processor, a memory, and a transceiver;
wherein the processor is configured to read a program in the memory and execute:
determining a wireless access technology supported by the terminal at the direct communication interface;
and if the terminal supports multiple wireless access technologies on the direct communication interface, selecting the wireless access technology used by the terminal on the direct communication interface from the multiple wireless access technologies.
17. The device of claim 16, wherein the processor is specifically configured to:
and determining the wireless access technology supported by the terminal at the direct communication interface according to the terminal capability information.
18. The device of claim 16, wherein the processor is specifically configured to:
taking a preset wireless access technology as a wireless access technology used by the terminal at a direct communication interface; or
Taking a radio access technology used by an interface between the terminal and network side equipment as a radio access technology used by the terminal on a direct communication interface; or
According to the mapping relation between the sending parameter Tx Profile identification and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the sending parameter Tx Profile identification of the current data packet as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the V2X service identification and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the current V2X service as the wireless access technology used by the terminal on the direct communication interface; or
According to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal on the direct communication interface; or
Selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or
Selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to a resource allocation mode expected to be used; or
And taking the wireless access technology notified by the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
19. The apparatus of claim 18, wherein the content of the V2X service identification is a PSID or ITS-AIDs.
20. The device of claim 18, wherein the processor is specifically configured to:
if the terminal direct communication interface only has one direct communication service transmission requirement, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, selecting a service with the highest requirement according to the requirement of at least one QoS parameter corresponding to the plurality of direct communication services, and then taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter corresponding to the service with the highest requirement as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface; or
If the terminal direct communication interface has a plurality of direct communication service transmission requirements, aiming at any direct communication service, taking the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the direct communication service as the wireless access technology used by the terminal at the direct communication interface according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface.
21. The device of claim 18, wherein the processor is specifically configured to:
if the resource allocation mode expected to be used by the terminal is the resource allocation mode autonomously selected by the terminal, selecting any one radio access technology as the radio access technology used by the terminal on the direct communication interface; or
And if the resource allocation mode expected to be used by the terminal is the resource allocation mode scheduled by the network, using the wireless access technology used by the interface between the terminal and the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
22. The device of claim 18, wherein the processor is specifically configured to:
taking the wireless access technology indicated by the network side equipment in an explicit mode as the wireless access technology of the terminal at a direct communication interface; or
And taking the radio access technology indicated by the network side equipment in an implicit mode through the resource allocation indication information as the radio access technology used by the terminal on the direct communication interface.
23. The device of claim 22, wherein the processor is further configured to:
and after informing the network side equipment of the wireless access technology supported by the terminal on the direct communication interface, taking the wireless access technology informed by the network side equipment as the wireless access technology used by the terminal on the direct communication interface.
24. The device of claim 18, wherein the processor is further configured to:
if the wireless access technology used by the direct communication interface corresponding to the transmission parameter Tx Profile identification of the current data packet is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the transmission parameter Tx Profile identification and the wireless access technology used by the direct communication interface; or the wireless access technology used by the direct communication interface corresponding to the current V2X service is used as the wireless access technology used by the terminal on the direct communication interface according to the mapping relation between the V2X service identifier and the wireless access technology used by the direct communication interface; or according to the mapping relation between the QoS parameter of the direct communication service and the wireless access technology used by the direct communication interface, using the wireless access technology used by the direct communication interface corresponding to the QoS parameter of the current direct communication service as the wireless access technology used by the terminal on the direct communication interface; or selecting a wireless access technology used by the terminal in the direct communication interface from a plurality of wireless access technologies according to an implementation algorithm; or selecting a radio access technology used by the terminal in the direct communication interface from a plurality of radio access technologies according to the expected used resource allocation mode; the wireless access technology used by the terminal on the direct communication interface is notified to the network side equipment.
25. The apparatus of any of claims 16 to 24, wherein the radio access technology comprises one of:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
26. An apparatus for determining a radio access technology used by a direct communication interface, the apparatus comprising: a processor, a memory, and a transceiver;
wherein the processor is configured to read a program in the memory and execute:
determining that the terminal needs to use a direct communication interface;
determining a radio access technology used by the terminal at the direct communication interface.
27. The device of claim 26, wherein the processor is specifically configured to:
taking a wireless access technology preset by the terminal as a wireless access technology used by the terminal at a direct communication interface; or
Taking a wireless access technology used by an interface between the terminal and network side equipment as a wireless access technology used by the terminal at a direct communication interface; or
Receiving a wireless access technology used by the terminal on a direct communication interface and notified by the terminal; or
And determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
28. The device of claim 27, wherein the processor is further configured to:
and after the terminal which receives the notification of the terminal is in the wireless access technology supported by the direct communication interface, determining the wireless access technology used by the terminal in the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
29. The device of claim 27, wherein the processor is further configured to:
before notifying the determined wireless access technology used by the terminal on the direct communication interface to the terminal, determining the wireless access technology used by the terminal on the direct communication interface according to the wireless access technology of the direct communication interface supported by the terminal.
30. The apparatus of any one of claims 26 to 29, wherein the radio access technology comprises one of:
an LTE Rel-14 based direct communication interface radio access technology, an LTE Rel-15 based direct communication interface radio access technology, and an NR based direct communication interface radio access technology.
31. An apparatus for determining a radio access technology used by a direct communication interface, the apparatus comprising:
a first determination module: the wireless access technology used for determining the terminal to support at the direct communication interface;
a selection module: and the terminal is used for selecting the wireless access technology used by the terminal on the direct communication interface from the plurality of wireless access technologies if the plurality of wireless access technologies are supported on the direct communication interface.
32. An apparatus for determining a radio access technology used by a direct communication interface, the apparatus comprising:
an interface determination module: the terminal is used for determining that the terminal needs to use the direct communication interface;
an access determination module: for determining a radio access technology used by the terminal at the direct communication interface.
33. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 10 or 11 to 15.
CN201811075474.7A 2018-09-14 2018-09-14 Method and equipment for determining wireless access technology used by direct communication interface Pending CN110913363A (en)

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