CN106792429B - User equipment, base station and short-distance service unicast communication and resource scheduling method - Google Patents
User equipment, base station and short-distance service unicast communication and resource scheduling method Download PDFInfo
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- CN106792429B CN106792429B CN201610302805.0A CN201610302805A CN106792429B CN 106792429 B CN106792429 B CN 106792429B CN 201610302805 A CN201610302805 A CN 201610302805A CN 106792429 B CN106792429 B CN 106792429B
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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
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
A user equipment, a base station and a near field service unicast communication and resource scheduling method are provided, wherein the near field service unicast communication method comprises the following steps: acquiring and storing identification information used when short-distance service unicast communication is carried out; sending short-distance service unicast communication request information to a base station; sending a D2D cache status report to the base station, so that the base station allocates corresponding resources for performing short-range service unicast communication with an opposite-end user device based on the identification information used when the opposite-end user device performs short-range service unicast communication determined by the identification information and the index information; and receiving the resource allocation information sent by the base station, and performing short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment. By the scheme, the conflict of the resources allocated by the D2D communication can be avoided.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to user equipment, a base station and a method for unicast communication and resource scheduling of near field service.
Background
Device-to-Device (D2D) communication is a new technology that allows direct communication between User Equipments (UEs) through multiplexing cell resources under the control of a communication system, and it can increase the spectrum efficiency of the cellular communication system, reduce the user equipment transmission power, and to some extent solve the problem of the lack of spectrum resources of the wireless communication system.
In the research Project of Long Term Evolution-Advanced (LTE-a) proposed by the third Generation Partnership Project (3 GPP), a new technology needs to be provided on the basis of LTE to meet the requirement of International Mobile Telecommunications-Advanced (IMT-a) and provide higher data rate and system capacity. IMT-a systems allow for D2D communication to be supported under a cellular network to improve spectrum utilization. The D2D communication shares resources with cell users under the control of the cell network, so the utilization rate of the frequency spectrum will be improved. In addition, it can reduce the burden of cellular network, reduce the battery power consumption of mobile terminal, increase bit rate, improve the robustness of network infrastructure failure, etc., and can support novel small-range point-to-point data service
However, in the prior art, the base station allocates the D2D communication resource to the user equipment, which causes the user equipment to receive and transmit data to different peer devices at the same time, and thus there is a problem of resource collision.
Disclosure of Invention
The embodiment of the invention solves the problem of avoiding the conflict of the resources distributed by D2D communication and improving the efficiency of wireless resources.
In order to solve the above problem, an embodiment of the present invention provides a near field service unicast communication method, including: acquiring and storing identification information used when short-distance service unicast communication is carried out; sending short-distance service unicast communication request information to a base station, wherein the short-distance service unicast communication request information comprises the identification information and identification information used when opposite-end user equipment carries out short-distance service unicast communication; when short-distance unicast communication with opposite-end user equipment is needed, sending a D2D cache state report to the base station, wherein the cache state report comprises index information corresponding to an identifier used by the opposite-end user equipment during short-distance service unicast communication, so that the base station allocates corresponding resources for short-distance service unicast communication between the base station and the opposite-end user equipment based on the identifier information determined by the identifier information and the index information when the opposite-end user equipment performs short-distance service unicast communication; and receiving the resource allocation information sent by the base station, and performing short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment.
Optionally, the identification information used in the unicast communication of the proximity service is allocated by the proximity service functional entity when performing proximity service authentication on the user equipment.
Optionally, the identification information is layer 2 identification information for performing short-range service unicast communication.
Optionally, the short-range service unicast communication request information includes identification information of one or more peer user equipments that require short-range service unicast communication.
Optionally, the performing, by using the resource corresponding to the resource allocation information, near field service unicast communication with the peer user equipment includes: analyzing the index information of the opposite-end user equipment from the resource allocation information sent by the base station, and performing short-distance service unicast communication by using the resource corresponding to the resource allocation information and the opposite-end user equipment corresponding to the analyzed index information.
The embodiment of the invention also provides a short-distance service unicast communication resource allocation method, which comprises the following steps: receiving short-distance service unicast communication request information sent by user equipment, and analyzing to obtain identification information used when the user equipment performs short-distance service unicast communication and identification information used when opposite-end user equipment performs short-distance service unicast communication; receiving a D2D cache status report sent by the user equipment, and analyzing to obtain index information corresponding to an identifier used by the opposite-end user equipment when the opposite-end user equipment carries out short-distance service unicast communication; based on the user equipment and the identification information used when the opposite-end user equipment is subjected to short-distance unicast communication determined by the index information, allocating corresponding resources for the user equipment and the opposite-end user equipment to perform short-distance service unicast communication; and sending resource allocation information to the user equipment so that the user equipment communicates with the opposite-end user equipment by using the resource corresponding to the resource allocation information.
Optionally, the identification information is allocated by the proximity service function entity when performing proximity service authentication on the user equipment.
Optionally, the identification information is layer 2 identification information for performing short-range service unicast communication.
Optionally, the sending resource allocation information to the user equipment includes: and sending the resource allocation information to the user equipment through the downlink control information of the fifth format of the physical downlink control channel.
Optionally, the short-range service unicast communication request information sent by the user equipment includes index information of one or more peer user equipments requiring short-range service unicast communication, and the downlink control information includes index information of the corresponding peer user equipment.
An embodiment of the present invention further provides a user equipment, including: the identification information acquisition unit is suitable for acquiring and storing identification information used when short-distance service unicast communication is carried out; the system comprises an identification information sending unit, a short-distance service unicast communication unit and a short-distance service unicast communication unit, wherein the identification information sending unit is suitable for sending short-distance service unicast communication request information to a base station, and the short-distance service unicast communication request information comprises the identification information and identification information used when opposite-end user equipment carries out short-distance service unicast communication; the communication request unit is suitable for sending a D2D cache status report to the base station when short-distance unicast communication with opposite-end user equipment is required, wherein the cache status report comprises index information corresponding to identification information used by the opposite-end user equipment when the short-distance unicast communication is carried out, so that the base station allocates corresponding resources for the short-distance unicast communication between the base station and the opposite-end user equipment based on the identification information used by the opposite-end user equipment when the short-distance unicast communication is carried out, which is determined by the identification information and the index information; and the communication unit is suitable for receiving the resource allocation information sent by the base station and carrying out short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment.
Optionally, the identification information used in the unicast communication of the proximity service is allocated by the proximity service functional entity when performing proximity service authentication on the user equipment.
Optionally, the identification information is layer 2 identification information for performing short-range service unicast communication.
Optionally, the short-range service unicast communication request information includes the identification information of one or more peer user equipments that need short-range service unicast communication.
Optionally, the communication unit is adapted to analyze index information of the peer user equipment from the resource allocation information sent by the base station, and perform short-distance service unicast communication using the resource corresponding to the resource allocation information and the peer user equipment corresponding to the analyzed index information.
An embodiment of the present invention further provides a base station, including: the system comprises a first analysis unit, a second analysis unit and a third analysis unit, wherein the first analysis unit is suitable for receiving short-distance service unicast communication request information sent by user equipment and analyzing to obtain identification information used when the user equipment carries out short-distance service unicast communication and identification information used when opposite-end user equipment carries out short-distance service unicast communication; the second analysis unit is suitable for receiving the D2D cache status report sent by the user equipment and analyzing to obtain index information corresponding to the identifier used by the opposite-end user equipment for short-distance service unicast communication; the resource allocation unit is suitable for allocating corresponding resources for the short-distance service unicast communication between the user equipment and the opposite-end user equipment based on the identification information used by the user equipment for the short-distance unicast communication and the identification information determined by the index information and used by the opposite-end user equipment for the short-distance unicast communication; and the resource allocation information sending unit is suitable for sending resource allocation information to the user equipment so that the user equipment communicates with the opposite-end user equipment by using the resource corresponding to the resource allocation information.
Optionally, the identification information is allocated by the proximity service functional entity in the process of performing proximity service authentication on the user equipment.
Optionally, the identification information is layer 2 identification information for performing short-range service unicast communication.
Optionally, the resource allocation information sending unit is adapted to send the resource allocation information to the user equipment through downlink control information in a fifth format of a physical downlink control channel.
Optionally, the short-range service unicast communication request information sent by the user equipment includes index information of one or more peer user equipments requiring short-range service unicast communication, and the downlink control information sent by the resource allocation information sending unit includes index information of the corresponding peer user equipments.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the scheme, when the user equipment needs to perform short-distance service unicast communication, the identification information used by the user equipment and the opposite-end user equipment needing the short-distance service unicast communication for performing the short-distance service unicast communication is sent to the base station through the short-distance service unicast communication request information, so that the base station can acquire the identification information of the user equipment of the two parties performing the short-distance service unicast communication, the conflict can be avoided when corresponding resources are allocated, and the utilization rate of wireless resources is improved.
Drawings
Fig. 1 is a flowchart of a unicast communication method for near field communication service in an embodiment of the present invention;
fig. 2 is a flowchart of a unicast communication resource allocation method for near field communication service in an embodiment of the present invention;
fig. 3 is a signaling flowchart in a unicast communication method for near field communication service in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a user equipment in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station in an embodiment of the present invention.
Detailed Description
In order to solve the above problem, in the technical solution of the embodiment of the present invention, when the user equipment needs to perform short-distance service unicast communication, the identification information used by the user equipment and the opposite-end user equipment that needs to perform short-distance service unicast communication is sent to the base station through the short-distance service unicast communication request information, so that the base station can obtain the identification information of the user equipment of both parties performing short-distance service unicast communication, thereby avoiding collision when allocating corresponding resources and improving the utilization rate of wireless resources.
Fig. 1 shows a flowchart of a unicast communication method for proximity services according to an embodiment of the present invention. Referring to fig. 1, the method for unicast communication of proximity services in the embodiment of the present invention may include the following steps:
step S101: and acquiring and storing identification information used during short-distance service unicast communication.
In a specific implementation, the identification information used when the user equipment performs the short-range service unicast communication is allocated to the short-range service functional entity when performing the short-range service authentication on the user equipment.
Step S102: and when unicast communication is required to be carried out, sending short-distance service unicast communication request information to a base station, wherein the short-distance service unicast communication request information comprises the identification information and identification information used when opposite-end user equipment carries out short-distance service unicast communication.
In a specific implementation, the user equipment may send short-range service unicast communication request Information, that is, a sidelink UE Information message, to the base station according to an actual need, and carry identification Information of the user equipment and identification Information used by one or more opposite-end user equipments, that is, all the opposite-end devices that need to perform short-range service unicast communication when performing short-range service unicast communication, to the short-range service unicast communication request Information, so that the base station may know the identification Information used by the user equipment and the opposite-end user equipments when performing short-range service unicast communication.
Step S103: when short-distance unicast communication with opposite-end user equipment is needed, a D2D cache status report is sent to the base station, and the D2D cache status report comprises index information corresponding to an identifier used when the opposite-end user equipment carries out short-distance service unicast communication.
In a specific implementation, when receiving the D2D cache status report (BSR) sent by the user equipment, the base station may analyze the index information from the BSR, determine, based on a correspondence between the index information and identification information, identification information used when the peer user equipment performs short-range service unicast communication, and further may allocate, according to the identification information of the user equipment and the identification information determined by the index information, corresponding resources for performing short-range service unicast communication between the user equipment and the peer user equipment.
By the above mode, the base station can be prevented from scheduling the user equipment to the same time to transmit and receive data to different opposite end user equipment, so that resource allocation conflict can be avoided, and the utilization rate of resources is improved.
Step S104: and receiving the resource allocation information sent by the base station, and performing short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment.
In a specific implementation, a base station generates resource allocation information, which is information for allocating resources for performing near field unicast communication to the user equipment, and sends the generated resource allocation information to the user equipment, so that the user equipment can perform near field service unicast communication with an opposite-end user equipment by using corresponding resources.
According to the scheme, when the user equipment needs to perform short-distance service unicast communication, the identification information used for performing short-distance service unicast communication between the user equipment and the opposite-end user equipment needing the short-distance service unicast communication is sent to the base station, so that the base station can acquire the identification information of the user equipment of the two parties performing the short-distance service unicast communication, collision can be avoided when corresponding resources are allocated, and the utilization rate of wireless resources is improved.
Fig. 2 is a flow chart of another near field service unicast communication resource allocation method in the embodiment of the invention.
Referring to fig. 2, in a specific implementation, a method for allocating resources of a near field service unicast communication method in an embodiment of the present invention may include the following steps:
step S201: and receiving short-distance service unicast communication request information sent by user equipment, and analyzing to obtain identification information used when the user equipment performs short-distance service unicast communication and identification information used when opposite-end user equipment performs short-distance service unicast communication.
Step S202: and receiving the D2D cache status report sent by the user equipment, and determining the identification information of the short-distance service unicast communication of the user equipment corresponding to the opposite end based on the index information in the D2D cache status report.
Step S203: and allocating corresponding resources for the user equipment and the opposite-end user equipment to perform short-distance service unicast communication based on the identification information used by the user equipment to perform short-distance unicast communication and the identification information used by the opposite-end user equipment to perform short-distance unicast communication.
Step S204: and sending resource allocation information to the user equipment so that the user equipment performs short-range service unicast communication with the opposite-end user equipment by using the resource corresponding to the resource allocation information.
The near field service unicast communication method in the embodiment of the present invention will be described in further detail with reference to fig. 3.
Referring to fig. 3, a method for unicast communication of a proximity service in an embodiment of the present invention may include the following steps:
step S301: the short-distance service functional entity performs short-distance service authentication on the user equipment and distributes identification information used when short-distance service unicast communication is performed to the user equipment in the short-distance service authentication process.
In specific implementation, before performing direct communication and direct discovery, a user equipment first needs to initiate proximity service authentication to a proximity service Function Entity (ProSe Function Entity) on a network side, and in the proximity service authentication process, the proximity service Function Entity allocates, to the user equipment, an identification information layer-2ID used when performing proximity unicast communication, and sends, through a PC3 interface, the identification information layer-2ID allocated to the user equipment and used when performing proximity unicast communication, to the user equipment for storage.
Step S302: and the short-distance service functional entity sends the information of the user equipment passing the authentication to the base station through the home subscription server and the mobile management entity.
In the specific implementation, because the short-range service functional entity can not directly communicate with the base station, when the authentication of the short-distance service is passed on the user equipment, the short-distance service functional entity can send the information that the authentication of the short-distance service is passed on the user equipment to the home subscriber server HSS through the PC4a interface, the home subscriber server HSS then sends the information that the authentication of the short-distance service is passed on the user equipment to the mobility management entity MME through the S6a interface, the mobility management entity MME then sends the information that the authentication of the short-distance service is passed on the user equipment to the base station, so that the base station can know the information that the proximity service authentication of the user equipment is passed, so that the user equipment can be allocated with corresponding resources for short-distance unicast communication when needed.
Step S303: the user equipment sends short-distance service unicast communication request information, wherein the short-distance service unicast communication request information comprises identification information used when the user equipment carries out short-distance service unicast communication and identification information used when opposite-end user equipment carries out short-distance service unicast communication.
In a specific implementation, the ue establishes an RRC connection with the base station through random access, and sends the short-range service unicast communication request information to the base station to express information interested in short-range service unicast communication to the base station, so that the base station allocates a corresponding short-range service unicast communication resource to the ue to prepare correspondingly.
The short-distance service unicast communication request Information (Sidelink UE Information) comprises identification Information layer-2ID used when the user equipment performs short-distance service unicast communication and identification Information layer-2ID used when one or more opposite-end user equipment performs the short-distance service unicast communication, namely all opposite-end user equipment which needs to perform the short-distance service unicast communication. By the method, the base station can store the identification information layer-2ID used by the user equipment for short-distance service unicast communication and the identification information layer-2ID used by the opposite-end user equipment for short-distance service unicast communication, so as to be used in the subsequent resource allocation.
Step S304: when short-distance service unicast communication with opposite-end user equipment is required, the user equipment sends a D2D cache status report to a base station, wherein the D2D cache status report comprises index information corresponding to an identifier used by the opposite-end user equipment during short-distance service unicast communication.
In a specific implementation, after the ue sends the short-range service unicast communication request information, the generated D2D BSR may be sent to the base station according to an actual need, so that the base station may know that there is valid data to be sent between the ue and the peer device, and the D2DBSR further includes index information (destination index) of the peer ue, and when the base station parses the index information from the index information, the base station may query the index information and a preset index information and identification information mapping relationship table stored in the base station to obtain identification information layer-2ID used when the corresponding peer ue performs short-range service unicast communication.
Step S305: the base station allocates corresponding resources for the user equipment and the opposite-end user equipment to perform short-distance service unicast communication based on the identification information used by the user equipment to perform short-distance service unicast communication and the identification information used by the opposite-end user equipment to perform short-distance service unicast communication determined by the index information analyzed from the D2D cache status report, generates corresponding resource allocation information and sends the corresponding resource allocation information to the user equipment.
In the specific implementation, the base station can acquire the identifier information layer-2ID used by the user equipment for performing short-range service unicast communication through the short-range service unicast communication request information, and determine the identifier information layer-2ID used by the opposite user equipment for performing short-range service unicast communication through the index information in the D2DBSR sent by the user equipment, so that when the base station performs resource allocation, the base station can avoid scheduling the user equipment to receive and send data to different user equipment at the same time, and thus, the allocated resources can be prevented from colliding.
In a specific implementation, when the short-distance service unicast communication request information sent by the user equipment may include the identification information layer-2 IDs of two or more peer user equipments, the base station may add index information of one of the two or more peer user equipments to the resource allocation information, so that the user equipment may know that the short-distance service unicast communication resource allocated in the current resource allocation information is used for performing short-distance service unicast communication with the peer user equipment corresponding to the index identification, and is not used for performing short-distance service unicast communication with other peer user equipments.
Step S306: and the user equipment analyzes the resource allocation information sent by the base station and performs short-distance service unicast communication between the corresponding resources and the opposite-end user equipment.
In a specific implementation, when receiving the resource allocation information sent by the base station, the user may analyze, from the resource allocation information, resource information allocated by the base station for performing short-range service unicast communication between the user and an opposite-end user device, and perform short-range service unicast communication between the user and the corresponding opposite-end user device using the allocated resource.
In an embodiment of the present invention, the resource allocation information sent by the base station may be sent to the ue in a Downlink Control Information (DCI) of a fifth Format (Format 5) of a physical downlink control channel PDCCH.
Those skilled in the art will understand that those skilled in the art may also use DCI with other formats to transmit corresponding resource allocation information to the user equipment, which is not limited herein.
Fig. 4 shows a structure of a user equipment in an embodiment of the present invention. Referring to fig. 4, a user equipment 400 in this embodiment of the present invention may include an identification information obtaining unit 401, an identification information sending unit 402, a communication request unit 403, and a communication unit 404, where:
an identification information obtaining unit 401, adapted to obtain and store identification information used when performing near field service unicast communication.
An identification information sending unit 402, adapted to send short-distance service unicast communication request information to a base station, where the short-distance service unicast communication request information includes the identification information and identification information used by an opposite end user device for short-distance service unicast communication.
The communication request unit 403 is adapted to send, when short-distance unicast communication with an opposite-end user device is required, a D2D cache status report to the base station, where the cache status report includes index information corresponding to identification information used by the opposite-end user device when performing short-distance service unicast communication, so that the base station allocates corresponding resources for performing short-distance service unicast communication with the opposite-end user device based on the identification information and the identification information used by the opposite-end user device determined by the index information when performing short-distance service unicast communication.
A communication unit 404, adapted to receive the resource allocation information sent by the base station, and perform short-distance service unicast communication with the peer user equipment using the resource corresponding to the resource allocation information.
In a specific implementation, the identification information used in the unicast communication of the proximity service is allocated by the proximity service functional entity when performing the proximity service authentication on the user equipment. Wherein, the identification information is layer 2 identification information for performing short-distance service unicast communication.
In a specific implementation, the short range service unicast communication request information may include identification information of one or more peer user devices.
In a specific implementation, the communication unit 404 is adapted to analyze index information of the peer user equipment from the resource allocation information sent by the base station, and perform short-range service unicast communication using the resource corresponding to the resource allocation information and the peer user equipment corresponding to the analyzed index information.
Fig. 5 shows a structure of a base station in an embodiment of the present invention. Referring to fig. 5, in a specific implementation, a base station 500 in the embodiment of the present invention may include a first parsing unit 501, a second parsing unit 502, a resource allocation unit 503, and a resource allocation information sending unit 504, where:
the first analyzing unit 501 is adapted to receive short-distance service unicast communication request information sent by a user equipment, and analyze the short-distance service unicast communication request information to obtain identification information used when the user equipment performs short-distance service unicast communication and identification information used when an opposite-end user equipment performs short-distance service unicast communication.
The second parsing unit 502 is adapted to receive the D2D cache status report sent by the user equipment, and parse to obtain index information corresponding to an identifier used by an opposite-end user equipment when performing short-distance service unicast communication.
The resource allocation unit 503 is adapted to allocate, based on the user equipment and the identification information used by the peer user equipment determined by the index information when performing short-distance unicast communication, corresponding resources for performing short-distance service unicast communication between the user equipment and the peer user equipment.
A resource allocation information sending unit 504, adapted to send resource allocation information to the user equipment, so that the user equipment communicates with the peer user equipment using a resource corresponding to the resource allocation information.
In a specific implementation, the identification information is allocated by the proximity service functional entity when performing proximity service authentication on the user equipment. Wherein, the identification information is layer 2 identification information for performing short-distance service unicast communication.
In an embodiment of the present invention, the resource allocation information sending unit 504 is adapted to send the resource allocation information to the user equipment through downlink control information in a fifth format of a physical downlink control channel.
In an embodiment of the present invention, the D2D buffer status report includes index information of one or more peer user equipments that require near field service unicast communication, and the downlink control information sent by the resource allocation information sending unit 504 includes index information of one of the peer user equipments.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by instructions associated with hardware via a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
The method and system of the embodiments of the present invention have been described in detail, but the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A near field service unicast communication method is characterized by comprising the following steps:
acquiring and storing identification information used when short-distance service unicast communication is carried out; the identification information is obtained by adopting the following steps: initiating short-distance service authentication to a short-distance service functional entity at a network side, and distributing the identification information by the short-distance service functional entity; the identification information is layer 2 identification information for performing short-distance service unicast communication;
sending short-distance service unicast communication request information to a base station, wherein the short-distance service unicast communication request information comprises the identification information and identification information used when opposite-end user equipment carries out short-distance service unicast communication;
when short-distance unicast communication with opposite-end user equipment is needed, sending a D2D cache state report to the base station, wherein the cache state report comprises index information corresponding to an identifier used by the opposite-end user equipment during short-distance service unicast communication, so that the base station allocates corresponding resources for short-distance service unicast communication between the base station and the opposite-end user equipment based on the identifier information determined by the identifier information and the index information when the opposite-end user equipment performs short-distance service unicast communication; the number of the opposite-end user equipment is one or more;
and receiving the resource allocation information sent by the base station, and performing short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment.
2. The proximity services unicast communication method according to claim 1, wherein the identification information used in the proximity services unicast communication is allocated by the proximity services functional entity when performing proximity services authentication on the user.
3. The proximity service unicast communication method according to claim 1, wherein the proximity service unicast communication request information includes identification information of one or more peer user devices that require proximity service unicast communication.
4. The short distance service unicast communication method according to claim 3, wherein the performing short distance service unicast communication between the peer user equipment and the resource corresponding to the resource allocation information comprises:
analyzing the index information of the opposite-end user equipment from the resource allocation information sent by the base station, and performing short-distance service unicast communication by using the resource corresponding to the resource allocation information and the opposite-end user equipment corresponding to the analyzed index information.
5. A method for allocating short-distance service unicast communication resources is characterized by comprising the following steps:
receiving short-distance service unicast communication request information sent by user equipment, and analyzing to obtain identification information used when the user equipment performs short-distance service unicast communication and identification information used when opposite-end user equipment performs short-distance service unicast communication; the number of the opposite-end user equipment is one or more; the identification information is obtained by adopting the following steps: initiating short-distance service authentication to a short-distance service functional entity at a network side, and distributing the identification information by the short-distance service functional entity; the identification information is layer 2 identification information for performing short-distance service unicast communication;
receiving a D2D cache status report sent by the user equipment, and analyzing to obtain index information corresponding to an identifier used by the opposite-end user equipment when the opposite-end user equipment carries out short-distance service unicast communication;
based on the identification information used when the user equipment performs short-distance unicast communication and the identification information determined by the index information and used when the opposite-end user equipment performs short-distance unicast communication, allocating corresponding resources for the user equipment and the opposite-end user equipment to perform short-distance service unicast communication;
and sending resource allocation information to the user equipment so that the user equipment communicates with the opposite-end user equipment by using the resource corresponding to the resource allocation information.
6. The method of claim 5, wherein the identification information is allocated by the proximity services function entity when performing proximity services authentication on the UE.
7. The near field service unicast communication resource allocation method according to claim 5, wherein the sending resource allocation information to the user equipment comprises:
and sending the resource allocation information to the user equipment through the downlink control information of the fifth format of the physical downlink control channel.
8. The method of claim 7, wherein the D2D buffer status report includes index information of one or more peer user equipments requiring short-range service unicast communication, and the downlink control information includes index information of corresponding peer user equipments.
9. A user device, comprising:
the identification information acquisition unit is suitable for acquiring and storing identification information used when short-distance service unicast communication is carried out; the identification information is obtained by adopting the following steps: initiating short-distance service authentication to a short-distance service functional entity at a network side, and distributing the identification information by the short-distance service functional entity;
the identification information is layer 2 identification information for performing short-distance service unicast communication;
the system comprises an identification information sending unit, a short-distance service unicast communication unit and a short-distance service unicast communication unit, wherein the identification information sending unit is suitable for sending short-distance service unicast communication request information to a base station, and the short-distance service unicast communication request information comprises the identification information and identification information used when opposite-end user equipment carries out short-distance service unicast communication;
the communication request unit is suitable for sending a D2D cache status report to the base station when short-distance unicast communication with opposite-end user equipment is required, wherein the cache status report comprises index information corresponding to identification information used by the opposite-end user equipment when the short-distance unicast communication is carried out, so that the base station allocates corresponding resources for the short-distance unicast communication between the base station and the opposite-end user equipment based on the identification information used by the opposite-end user equipment when the short-distance unicast communication is carried out, which is determined by the identification information and the index information; the number of the opposite-end user equipment is one or more;
and the communication unit is suitable for receiving the resource allocation information sent by the base station and carrying out short-distance service unicast communication between the resources corresponding to the resource allocation information and the opposite-end user equipment.
10. The UE of claim 9, wherein the identification information used in the NFC unicast communication is allocated by the NFC functional entity during the NFC authentication of the UE.
11. The ue of claim 9, wherein the proximity service unicast communication request information includes the identification information of one or more peer ues requiring proximity service unicast communication.
12. The UE of claim 11, wherein the communication unit is adapted to analyze index information of the peer UE from the resource allocation information sent by the BS, and perform unicast communication of the short-distance service using a resource corresponding to the resource allocation information and the peer UE corresponding to the analyzed index information.
13. A base station, comprising:
the system comprises a first analysis unit, a second analysis unit and a third analysis unit, wherein the first analysis unit is suitable for receiving short-distance service unicast communication request information sent by user equipment and analyzing to obtain identification information used when the user equipment carries out short-distance service unicast communication and identification information used when opposite-end user equipment carries out short-distance service unicast communication; the number of the opposite-end user equipment is one or more; the identification information is obtained by adopting the following steps: initiating short-distance service authentication to a short-distance service functional entity at a network side, and distributing the identification information by the short-distance service functional entity; the identification information is layer 2 identification information for performing short-distance service unicast communication;
the second analysis unit is suitable for receiving the D2D cache status report sent by the user equipment and analyzing to obtain index information corresponding to the identifier used by the opposite-end user equipment for short-distance service unicast communication;
the resource allocation unit is suitable for allocating corresponding resources for the user equipment and the opposite-end user equipment to perform short-distance service unicast communication based on the identification information used by the user equipment to perform short-distance unicast communication and the identification information determined by the index information and used by the opposite-end user equipment to perform short-distance unicast communication;
and the resource allocation information sending unit is suitable for sending resource allocation information to the user equipment so that the user equipment communicates with the opposite-end user equipment by using the resource corresponding to the resource allocation information.
14. The base station of claim 13, wherein the identification information is allocated by the proximity service function entity during the proximity service authentication procedure for the user equipment.
15. The base station according to claim 13, wherein said resource allocation information sending unit is adapted to send resource allocation information to said user equipment via downlink control information in a fifth format of a physical downlink control channel.
16. The base station of claim 15, wherein the D2D buffer status report sent by the ue includes index information of one or more peer ues requiring short-range service unicast communication, and the downlink control information sent by the resource allocation information sending unit includes index information of corresponding peer ues.
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| CN109496442A (en) * | 2018-10-17 | 2019-03-19 | 北京小米移动软件有限公司 | Based on the transmission method and device that object object is direct-connected |
| CN111278165B (en) * | 2019-01-11 | 2022-01-28 | 维沃移动通信有限公司 | Connection establishing method, terminal equipment and network equipment |
| CN112153599B (en) * | 2020-09-22 | 2023-03-24 | 中信科智联科技有限公司 | Message transmission method and device, internet of vehicles equipment and management node |
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