WO2016041359A1 - 一种vdc资源请求方法、用户设备和基站 - Google Patents

一种vdc资源请求方法、用户设备和基站 Download PDF

Info

Publication number
WO2016041359A1
WO2016041359A1 PCT/CN2015/078409 CN2015078409W WO2016041359A1 WO 2016041359 A1 WO2016041359 A1 WO 2016041359A1 CN 2015078409 W CN2015078409 W CN 2015078409W WO 2016041359 A1 WO2016041359 A1 WO 2016041359A1
Authority
WO
WIPO (PCT)
Prior art keywords
vdc resource
user equipment
base station
vdc
request message
Prior art date
Application number
PCT/CN2015/078409
Other languages
English (en)
French (fr)
Inventor
马洁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP15841284.1A priority Critical patent/EP3182780B1/en
Publication of WO2016041359A1 publication Critical patent/WO2016041359A1/zh
Priority to US15/460,484 priority patent/US20170188355A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/16Anti-collision systems
    • G08G1/161Decentralised systems, e.g. inter-vehicle communication
    • G08G1/163Decentralised systems, e.g. inter-vehicle communication involving continuous checking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the invention relates to the field of communication, in particular to a direct communication of a vehicle (VDC, Vehicle) Direct Communication) resource request method, user equipment, and base station.
  • VDC Vehicle
  • Vehicle Direct Communication
  • Vehicle networking that is, vehicle interconnection network, vehicle terminal installation mobile communication module, can use mobile communication network to achieve communication between vehicles.
  • Vehicle service information of the Internet of Vehicles is divided into three categories:
  • the first type of vehicle service information is information and entertainment services, the users in the vehicle can use the Internet of Vehicles for various entertainment activities, and the second type of vehicle service information is vehicle efficiency information services.
  • the information is issued by the road management department or by the road traffic participants, including: road congestion information, road construction information, speed limit of a certain section, weather of a certain section and whether the road can pass; the third type of vehicle service information
  • vehicle safety messages for example, emergency braking information of a certain vehicle, information indicating that there is an incoming vehicle when the vehicle turns, and the like, the vehicle safety message is mainly used to avoid collision of the vehicle.
  • the first type of vehicle service information and the second type of vehicle service information can be obtained from the cloud through communication methods such as the third mobile communication network (ie, 3G) and the fourth generation mobile communication network (ie, 4G), which must use wide area coverage.
  • the internet such as the third mobile communication network (ie, 3G) and the fourth generation mobile communication network (ie, 4G), which must use wide area coverage.
  • 3G third mobile communication network
  • 4G fourth generation mobile communication network
  • the transmission of the third type of vehicle service information is transmitted to achieve the effect of avoiding collision.
  • the delay requirement is high (usually the transmission delay is required to be within 100 milliseconds). Because the coverage of the cellular network is too wide and the process of link establishment is complicated, the transmission time of the cellular network is large. If 3G, 4G, etc.
  • the third type of vehicle service Information may not be sent to the vehicle terminal in time, which may result in a traffic accident.
  • the present invention provides a VDC resource request method, a user equipment, and a base station, which are used to reduce transmission delay of vehicle service information.
  • a first aspect of the present invention provides a VDC resource requesting method, including:
  • the user equipment When the user equipment needs to request the VDC resource to send the vehicle service information, the user equipment sends a VDC resource request message to the base station, where the VDC resource request message includes at least one of the following information: the VDC resource status list and the Driving information of the user equipment, wherein the VDC resource status list indicates available VDC resources;
  • the user equipment receives a VDC resource allocation indication message from the base station, where the VDC resource allocation indication message indicates: the VDC resource allocated by the base station to the user equipment according to the VDC resource request message;
  • the user equipment sends the vehicle service information by using a VDC resource indicated by the VDC resource allocation indication message.
  • the VDC resource request message includes: the VDC resource status list;
  • the method further includes:
  • the user equipment monitors a usage status of the VDC resource
  • the user equipment updates the locally stored VDC resource status list when the usage status of the VDC resource changes.
  • the user equipment monitors a usage status of a direct communication VDC resource of the vehicle, including:
  • VDC resource parameter information that is broadcast by the base station, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter;
  • the user sends a VDC resource request message to the base station, which previously includes:
  • the user equipment sends a predetermined access preamble sequence to the base station, so that the base station learns that the user equipment needs to apply for a VDC resource according to the predetermined access preamble sequence, and allocates an uplink grant value to the user equipment. ;
  • the access response message includes: an uplink grant value allocated by the base station to the user equipment;
  • the user equipment sends a VDC resource request message to the base station, specifically:
  • the user equipment sends a VDC resource request message to the base station according to an uplink grant value in the access response message.
  • the second aspect of the present invention protects another VDC resource request method, including:
  • VDC resource request message includes at least one of: a VDC resource status list and driving information of the user equipment, where the indication in the VDC resource status list is available VDC resources;
  • VDC resource allocation indication message Sending, to the user equipment, a VDC resource allocation indication message, where the VDC resource allocation indication message indicates a VDC resource allocated by the base station to the user equipment, so that the user equipment uses the VDC resource allocation indication message to indicate
  • the VDC resource sends vehicle service information.
  • the VDC resource request message includes: the VDC resource status list;
  • the VDC resource parameter information is broadcasted to the user equipment in the coverage of the base station, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter.
  • the VDC resource request message includes: driving information of the user equipment, where the driving information includes vehicle speed information of a vehicle where the user equipment is located;
  • the allocating the currently available VDC resources to the user equipment according to the VDC resource request message of the user equipment including:
  • VDC resource range Determining a VDC resource range according to a vehicle speed interval in which the vehicle speed information of the vehicle where the user equipment is located, wherein the vehicle speed interval and the VDC resource range have a corresponding relationship;
  • the user equipment is allocated a currently available VDC resource from the determined range of the VDC resources.
  • the method also includes:
  • VDC resource occupation indication information from the neighboring base station, where the VDC resource occupation indication information of the neighboring base station is used to indicate the occupied VDC resources in the coverage area of the neighboring base station;
  • the allocating the currently available VDC resources to the user equipment according to the VDC resource request message of the user equipment including:
  • the user equipment is allocated a currently available VDC resource according to the VDC resource request message of the user equipment and the VDC resource occupation indication information of the neighboring base station.
  • the receiving Before the vehicle directly from the user equipment communicates the VDC resource request message it includes:
  • an uplink grant value is allocated to the user equipment
  • the access response message includes: an uplink grant value allocated by the base station to the user equipment.
  • the access preamble sequence of the user equipment is further used to indicate a number of bytes that the user equipment requests to send;
  • the allocating an uplink grant value to the user equipment includes: assigning, to the user equipment, an uplink grant value that is greater than or equal to a number of bytes requested by the user equipment, according to an access preamble sequence of the user equipment.
  • a third aspect of the present invention provides a user equipment, including:
  • a sending unit configured to send a VDC resource request message to the base station when the VDC resource needs to be requested to send the vehicle service information, where the VDC resource request message includes at least one of the following information: the VDC resource status list and the user equipment Driving information, wherein the VDC resource status list indicates available VDC resources;
  • a receiving unit configured to receive a VDC resource allocation indication message from the base station, where the VDC resource allocation indication message indicates: the VDC resource allocated by the base station to the user equipment according to the VDC resource request message;
  • the sending unit is further configured to send the vehicle service information by using a VDC resource indicated by the VDC resource allocation indication message.
  • the VDC resource request message includes: the VDC resource status list;
  • the user equipment further includes:
  • a monitoring unit for monitoring the usage status of the direct communication VDC resource of the vehicle
  • An update unit configured to: when the monitoring unit monitors that the usage status of the VDC resource changes, updating the locally stored VDC resource status list;
  • the monitoring unit includes:
  • An acquiring unit configured to acquire VDC resource parameter information that is broadcast by the base station, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter;
  • the monitoring subunit is configured to monitor the usage status of the VDC resource according to the VDC resource parameter information acquired by the acquiring unit.
  • the sending The unit is further configured to: before sending the VDC resource request message to the base station, send a predetermined access preamble sequence to the base station, so that the base station learns that the user equipment needs to apply for the VDC resource according to the predetermined access preamble sequence. And allocating an uplink grant value to the user equipment;
  • the receiving unit is further configured to: receive an access response message from the base station, where the access response message includes: an uplink grant value allocated by the base station to the user equipment;
  • the sending unit is specifically configured to: send a VDC resource request message to the base station according to an uplink grant value in the access response message.
  • a fourth aspect of the present invention provides a base station, including:
  • a first receiving unit configured to receive a vehicle direct communication VDC resource request message from the user equipment, where the VDC resource request message includes at least one of: a VDC resource status list and the driving information of the user equipment, where Indicates available VDC resources in the VDC resource status list;
  • a first allocation unit configured to allocate a currently available VDC resource to the user equipment according to the VDC resource request message of the user equipment that is received by the first receiving unit;
  • a first sending unit configured to send a VDC resource allocation indication message to the user equipment, where the VDC resource allocation indication message indicates that the first allocation unit allocates a VDC resource to the user equipment, so that the user equipment uses the VDC resource.
  • the VDC resource indicated by the allocation indication message transmits vehicle service information.
  • the VDC resource request message includes: the VDC resource status list;
  • the above base station further includes:
  • a broadcast unit configured to broadcast VDC resource parameter information to the user equipment in the coverage of the base station, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter.
  • the VDC resource request message includes: driving information of the user equipment, where the driving information includes a vehicle speed of a vehicle where the user equipment is located;
  • the first allocating unit is configured to determine a VDC resource range according to a vehicle speed interval in which the vehicle speed information of the vehicle where the user equipment is located, and allocate the currently available VDC to the user equipment from the determined VDC resource range. Resources, wherein the vehicle speed interval has a corresponding relationship with the VDC resource range.
  • the second receiving a unit configured to receive VDC resource occupation indication information from a neighboring base station, where VDC resource occupation indication information of the neighboring base station is used to indicate an occupied VDC resource in a coverage area of the neighboring base station;
  • the first allocating unit is configured to: allocate, according to the VDC resource request message of the user equipment, the VDC resource occupation indication information of the neighboring base station, the currently available VDC resource for the user equipment.
  • the base station also includes:
  • a third receiving unit configured to receive an access preamble sequence of the user equipment
  • a second allocation unit configured to allocate an uplink authorization value to the user equipment when determining that the access preamble sequence is a predetermined access preamble sequence
  • a determining unit configured to determine a timing advance of the user equipment
  • a second sending unit configured to send an access response message to the user equipment, where the access response message includes: a timing advance of the user equipment, and an uplink grant value allocated by the base station to the user equipment .
  • the access preamble sequence of the user equipment is further used to indicate a number of bytes that the user equipment requests to send;
  • the second allocating unit is configured to: allocate, according to the access preamble sequence of the user equipment, the user equipment, an uplink that is greater than or equal to a number of bytes requested by the user equipment to be sent. Authorization value.
  • the RRC resource request message is sent to the base station, so that the base station according to the VDC resource.
  • the request message allocates available VDC resources to the user equipment, and then the user equipment sends the vehicle service information by using the VDC resource allocated by the base station, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the
  • the transmission delay of the vehicle service information, and experimental research data indicates that the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied by transmitting the vehicle service information according to the present invention.
  • FIG. 1 is a schematic flowchart of a method for requesting a VDC resource according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart diagram of another embodiment of a method for requesting a VDC resource according to the present invention
  • FIG. 3 is a schematic flowchart of still another embodiment of a VDC resource requesting method according to the present invention.
  • FIG. 4 is a schematic flowchart of still another embodiment of a VDC resource requesting method according to the present invention.
  • FIG. 5 is a schematic flowchart diagram of still another embodiment of a VDC resource requesting method according to the present invention.
  • FIG. 6 is a schematic flowchart of still another embodiment of a method for requesting a VDC resource according to the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of a user equipment according to the present invention.
  • FIG. 8 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • FIG. 9 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention.
  • FIG. 10 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • FIG. 11 is a schematic structural diagram of another embodiment of a base station according to the present invention.
  • the VDC resource requesting method in the embodiment of the present invention is described below with reference to the user equipment (UE, User Equipment).
  • the VDC resource requesting method in the embodiment of the present invention includes:
  • the VDC resource request message includes at least one of the following information: a VDC resource status list and driving information of the UE, where the VDC resource status list indicates an available VDC resource.
  • the VDC is a vehicle direct communication technology based on the physical layer design of the Long Term Evolution (LTE) system, that is, the VDC communication is a direct communication between the UE and the UE, and the feature is: the base station is each cell.
  • LTE Long Term Evolution
  • each UE for example, an in-vehicle terminal, a handheld terminal, etc.
  • the UE sends the vehicle safety message, it only needs to use the VDC resource allocated by the base station to the UE.
  • the UE needs to receive as many signals as possible on the VDC resource in order to receive as many vehicle safety messages as possible from other surrounding UEs.
  • the vehicle safety message includes, for example, emergency braking information of a certain vehicle, and prompts the opposite side when the vehicle turns. There is information about the car, etc.
  • the vehicle safety message is mainly used to avoid vehicle collision.
  • the foregoing VDC resource request message further includes: a radio network temporary identifier of the UE (RNTI, Radio Network) Tempory Identity), the RNTI is allocated by the base station to the UE when the UE accesses the cellular network.
  • RNTI Radio Network Tempory Identity
  • the driving information includes one or more of the following information: vehicle speed information of the vehicle where the UE is located, geographic location information of the vehicle where the UE is located, and/or driving direction.
  • the UE requests the VDC resource to be used for sending the third type of vehicle service information.
  • the UE may also request the VDC resource to send other vehicle service information.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain driving information (such as vehicle speed information, braking information, turning information, etc.) of the vehicle from the control management system of the vehicle in which it is located, and optionally, the UE may use
  • the positioning module such as a Global Positioning System (GPS) module
  • GPS Global Positioning System
  • the UE And generating, by the UE, the third type of vehicle service information generated by the VDC resource transmission, when the UE generates the third type of vehicle service information, in the embodiment of the present invention, the UE sends the base station to the base station. Send the above VDC resource request message. It should be noted that the generation of the third type of vehicle service information in the embodiment of the present invention may be specifically implemented by referring to the existing third type of vehicle service information generation manner, and details are not described herein again.
  • the UE receives a VDC resource allocation indication message from a base station.
  • the VDC resource allocation indication message indicates that the eNB allocates the VDC resource to the UE according to the VDC resource request message.
  • the UE sends the foregoing vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the RRC resource request message is sent to the base station, so that the base station according to the VDC resource.
  • the request message allocates available VDC resources to the user equipment, and then the user equipment sends the vehicle service information by using the VDC resource allocated by the base station, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the
  • the transmission delay of the vehicle service information, and experimental research data indicates that the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied by transmitting the vehicle service information according to the present invention.
  • VDC resource request message carries a VDC resource status list.
  • VDC resource request method including:
  • the UE monitors a usage status of the VDC resource.
  • the VDC is a vehicle direct communication technology based on the physical layer design of the LTE system, that is, the VDC communication is a direct communication between the UE and the UE, and the feature is that the base station independently configures VDC resources for each cell, and each UE (for example, an in-vehicle terminal, a handheld terminal, etc.) can obtain parameter information of a VDC resource by receiving a broadcast configuration message of the base station or by establishing a proprietary link with the base station, for example, a total bandwidth of the VDC resource within the coverage area of the base station, The time-frequency resource configuration parameters of the channels corresponding to the VDC resources, and the channel identifiers (such as channel numbers) of the channels corresponding to the VDC resources that the UE can use.
  • the vehicle safety message includes, for example, emergency braking information of a certain vehicle, and prompts the opposite side when the vehicle turns. There is information about the car, etc.
  • the vehicle safety message is mainly used to avoid vehicle collision.
  • the VDC resource is managed by the base station, but the VDC resource may not be a resource used for cellular communication between the base station and the UE, for example, the cellular communication resource between the base station and the UE is a spectrum of 2.6 GHz (ie, GHZ). And the VDC resource is a spectrum of 5.9 GHz; or, the cellular communication resource between the base station and the UE is 2.6 GHz frequency division duplex (FDD, Frequency) Division Duplexing), while the VDC resource is 2.6 GHz of Time Division Duplexing (TDD) spectrum.
  • FDD Frequency Division Duplex
  • the base station is in the broadcast channel of the spectrum of the cellular communication resource (BCH, Broadcast)
  • the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter, where the channel parameters include, but are not limited to, a time domain resource of the channel, a frequency domain resource of the channel, and a channel.
  • the retransmission timing and the modulation and coding scheme of the channel are not limited to, all the UEs in the coverage area of the base station can obtain the VDC resource parameter information broadcasted by the base station, and start to monitor the usage status of the VDC resource in the area covered by the base station according to the acquired VDC resource parameter information.
  • the base station may not broadcast the VDC resource parameter information.
  • the UE requests the VDC resource parameter information from the base station, and the base station generates a request to the UE after receiving the request of the UE.
  • VDC resource parameter information so that the UE monitors the usage status of the VDC resource.
  • the monitoring of the usage status of the VDC resource by the UE may be implemented in other manners, which is not limited herein.
  • the criterion for determining that the VDC resource is occupied is: the UE detects that the energy on the VDC resource is greater than a preset threshold
  • the criterion for determining that the VDC resource is idle is: the UE detects the VDC resource.
  • the energy is not greater than the threshold. That is, when the UE detects that the energy of a certain VDC resource is greater than a preset threshold, the UE determines that the VDC resource is currently occupied, and when the UE detects that the energy on a certain VDC resource is not greater than a preset threshold, When the value is, the UE determines that the VDC resource is currently idle.
  • the above energy is usually expressed by a power value.
  • the UE When monitoring the usage status of the VDC resource changes, the UE updates the locally stored VDC resource status list.
  • the VDC resource status list indicates the available VDC resources.
  • the VDC resource status list maintained by UE1 can be as shown in Table 1:
  • the VDC resource corresponding to the idle channel is the VDC resource currently available to the UE1
  • the VDC resource corresponding to the occupied channel is the VDC resource currently unavailable to the UE1.
  • the UE1 detects that the usage status of the VDC resource changes, for example, the UE1 detects that the VDC resource corresponding to the channel with the channel number 5 is occupied, and the VDC resource corresponding to the channel with the channel number 6 is not occupied, the UE1 pairs Table 1
  • the VDC resource status list is updated, and the updated VDC resource status list is as shown in Table 2;
  • the UE When the UE needs to request the VDC resource to send the vehicle service information, the UE sends a VDC resource request message to the base station.
  • the VDC resource request message includes: the foregoing VDC resource status list.
  • the foregoing VDC resource request message further includes: driving information of the UE and/or an RNTI of the UE, where the RNTI is allocated by the base station to the UE when the UE accesses the cellular network.
  • the driving information includes one or more of the following information: vehicle speed information of the vehicle where the UE is located, geographic location information of the vehicle where the UE is located, and/or driving direction.
  • the UE requests the VDC resource to be used for sending the third type of vehicle service information.
  • the UE may also request the VDC resource to send other vehicle service information.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain driving information (such as vehicle speed information, braking information, turning information, etc.) of the vehicle from the control management system of the vehicle in which it is located, and optionally, the UE may use
  • the positioning module for example, the GPS module
  • the service information when the UE generates a third type of vehicle service information, requests the base station to request the third type of vehicle service information generated by the VDC resource transmission.
  • the UE sends the VDC resource request message to the base station. It should be noted that the generation of the third type of vehicle service information in the embodiment of the present invention may be specifically implemented by referring to the existing third type of vehicle service information generation manner, and details are not described herein again.
  • the UE receives a VDC resource allocation indication message from the base station.
  • the VDC resource allocation indication message indicates that the eNB allocates the VDC resource to the UE according to the VDC resource request message.
  • the UE sends the foregoing vehicle service information by using the VDC resource indicated by the foregoing VDC resource allocation indication message.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the present invention monitors the usage status of the VDC resource in advance and updates the locally stored VDC resource status list, when the vehicle service information needs to be transmitted (for example, the third type of vehicle service information with high transmission delay requirement) needs to be transmitted.
  • the base station requests the idle resource in the VDC resource status list, and then uses the VDC resource allocated by the base station to send the vehicle service information, the complex link establishment process is not required between the user equipment and the base station in the whole process, and therefore, the effective reduction is performed.
  • the transmission delay of the vehicle service information is reduced, and the experimental research data indicates that the transmission delay of the vehicle service information can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied. .
  • the VDC resource requesting method in the embodiment of the present invention is further described in the following.
  • the VDC resource request message carries the driving information of the vehicle where the UE is located. Referring to FIG. 3, the present invention is implemented.
  • the VDC resource request method in the example includes:
  • the driving information includes one or more of the following information: vehicle speed information of the vehicle where the UE is located, geographic location information of the vehicle where the UE is located, and/or driving direction.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain the vehicle speed information of the vehicle where the UE is located from the control management system of the vehicle.
  • the UE may obtain the geographical location information, the driving direction, and the like of the vehicle where the UE is located, using a positioning module (such as a GPS module) that is equipped by itself.
  • a positioning module such as a GPS module
  • the foregoing VDC resource request message includes the driving information of the UE acquired in step 301.
  • the VDC resource request message may further include: a VDC resource status list and/or an RNTI of the UE, where the RNTI is allocated by the base station to the UE when the UE accesses the cellular network, where the VDC resource status list indicates Available VDC resources.
  • the UE may maintain the VDC resource status list locally by monitoring the usage status of the VDC resource.
  • the manner in which the UE maintains the local VDC resource status list may refer to the description in step 202 in the embodiment shown in FIG. 2 . , will not repeat them here.
  • the VDC is a vehicle direct communication technology based on the physical layer design of the LTE system, that is, the VDC communication is a direct communication between the UE and the UE, and the feature is that the base station independently configures VDC resources for each cell, and each UE (for example, an in-vehicle terminal, a handheld terminal, etc.) can obtain parameter information of a VDC resource by receiving a broadcast configuration message of the base station or by establishing a proprietary link with the base station, for example, a total bandwidth of the VDC resource within the coverage area of the base station, The time-frequency resource configuration parameters of the channels corresponding to the VDC resources, and the channel identifiers (such as channel numbers) of the channels corresponding to the VDC resources that the UE can use.
  • the vehicle safety message includes, for example, emergency braking information of a certain vehicle, and prompts the opposite side when the vehicle turns. There is information about the car, etc.
  • the vehicle safety message is mainly used to avoid vehicle collision.
  • the UE receives a VDC resource allocation indication message from the base station.
  • the VDC resource allocation indication message indicates that the eNB allocates the VDC resource to the UE according to the VDC resource request message.
  • the UE sends the foregoing vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the vehicle service information of the UE when it is required to transmit the third type of vehicle service information with high transmission delay requirement), the vehicle information of the UE is acquired, and the base station is sent to carry the UE.
  • the VDC resource request message of the driving information so that the base station allocates available VDC resources to the user equipment according to the VDC resource request message, and the user equipment sends the vehicle service information by using the VDC resource allocated by the base station, and the user equipment and the base station do not need to be required in the whole process.
  • the complicated link establishment process therefore, effectively reduces the transmission delay of the vehicle service information, and experimental research data indicates that the transmission delay of the vehicle can be guaranteed within 100 milliseconds by transmitting the vehicle service information according to the present invention.
  • the transmission delay requirement for the third type of vehicle service information is the third type of vehicle service information.
  • the embodiment of the present invention includes a scheme for requesting access by a UE, and the VDC resource request message carries a VDC resource status list and a vehicle where the UE is located.
  • Driving information of course, based on the embodiment of the present invention and the foregoing embodiment, the VDC resource request message may also carry only one of the VDC resource status list and the driving information of the vehicle where the UE is located. Referring to FIG. 4, the present invention is implemented.
  • the VDC resource request method in the example includes:
  • the UE monitors a usage status of the VDC resource.
  • the step 401 is similar to the step 201 in the embodiment shown in FIG. 2.
  • the specific implementation of the step 201 can be referred to the description in step 201, and details are not described herein again.
  • the UE updates the locally stored VDC resource status list when the usage status of the VDC resource changes.
  • the VDC resource status list indicates the available VDC resources.
  • the step 402 is similar to the step 202 in the embodiment shown in FIG. 2, and the specific implementation process may be described in the step 202 of the embodiment shown in FIG. 2, and details are not described herein again.
  • the UE When the UE needs to request the VDC resource to send the vehicle service information, the UE sends a predetermined access preamble sequence to the base station.
  • each subframe in the area covered by the base station is configured to allow the UE to initiate access in the configuration of the access slot. This requires the base station to inform the UE in the broadcast message, or after the UE is authenticated, the base station uses dedicated signaling to inform the UE that the access can be initiated in all subframes. At the same time, the base station side also needs to ensure that it is ready to receive the access preamble (ie preamble) from the UE at any time.
  • the embodiment of the present invention presets an independent preamble set for the UE to request the VDC resource, and the preamble set includes one or more.
  • the preamble dedicated to the VDC resource request when the UE needs to request the VDC resource to send the vehicle service information, the UE selects a preamble from the preamble set, and sends the preamble to the base station. Specifically, when the UE needs to request the VDC resource to send the vehicle service information, UE media intervention control layer (MAC, Media Access Control) Selecting a preamble from the preamble set and transmitting it to the physical layer of the UE (ie, the PHY layer), and the PHY layer of the UE transmits the preamble to the base station in the next most recent subframe.
  • MAC Media intervention control layer
  • the UE requests the VDC resource to be used for sending the third type of vehicle service information.
  • the UE may also request the VDC resource to send other vehicle service information.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain driving information (such as vehicle speed information, braking information, turning information, etc.) of the vehicle from the control management system of the vehicle in which it is located, and optionally, the UE may use
  • the positioning module for example, the GPS module
  • the service information when the UE generates a third type of vehicle service information, requests the base station to generate the third type of vehicle service information generated by the VDC resource transmission.
  • the UE sends a predetermined preamble to the base station. It should be noted that the generation of the third type of vehicle service information in the embodiment of the present invention may be specifically implemented by referring to the existing third type of vehicle service information generation manner, and details are not described herein again.
  • the access response message includes: an uplink grant value allocated by the base station to the UE.
  • the base station when the base station receives the preamble sent by the UE in step 403, and finds that the preamble requests the preamble dedicated to the VDC resource, the base station allocates a sufficient uplink grant value (ie, UL grant) to the UE.
  • a sufficient uplink grant value ie, UL grant
  • the number of bytes of the geographic location information is 10-20 bytes
  • the VDC resource status list is related to the number of VDC resources.
  • the base station has two ways to allocate UL for the UE. Grant: The first type allocates UL to the UE according to the maximum number of bytes. Grant. The second type uses the preamble to indicate the number of bytes that the UE requests to send.
  • the base station allocates a UL grant that is closest to or equal to the number of bytes requested by the UE according to the received preamble.
  • the base station will preamble. Classification is divided into three categories: the first type of preamble, and the number of bytes corresponding to the request is less than or equal to 128. In the second type of preamble, the number of bytes corresponding to the request is greater than 128 and less than or equal to 256; for the third type of preamble, the number of bytes corresponding to the request is between 256 and 384.
  • the classification of the preamble is not limited to the above three types, that is, the number of bytes of each type of preamble can be configured according to actual conditions. Further, the base station may broadcast the classification information of the preamble (including the number of bytes corresponding to each type of preamble) to the UE by using a broadcast message.
  • the base station determines the time advance (TA, Timing Advance) of the UE, and carries the TA of the UE in the access response message, so that the UE adjusts the sending time according to the TA.
  • the base station may also be unsure of the TA of the UE, that is, the access response message may not carry the TA of the UE, and the UE adjusts the transmission time point by using the downlink TA or the existing TA.
  • the UE sends a VDC resource request message to the base station according to the uplink grant value in the access response message.
  • the VDC resource request message includes: the foregoing VDC resource status list and the driving information of the UE.
  • the driving information includes one or more of the following information: vehicle speed information of the vehicle where the UE is located, geographic location information of the vehicle where the UE is located, and/or driving direction.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain the vehicle speed information of the vehicle where the UE is located from the control management system of the vehicle.
  • the UE may obtain the geographical location information, the driving direction, and the like of the vehicle where the UE is located, using a positioning module (such as a GPS module) that is equipped by itself.
  • a positioning module such as a GPS module
  • the foregoing VDC resource request message further includes: an RNTI of the UE, where the RNTI is allocated by the base station to the UE when the UE accesses the cellular network.
  • the UE is connected to the control management system of the vehicle in which the UE is located, and the UE may obtain the vehicle speed information of the vehicle where the UE is located from the control management system of the vehicle.
  • the UE receives a VDC resource allocation indication message from the base station.
  • the VDC resource allocation indication message indicates that the eNB allocates the VDC resource to the UE according to the VDC resource request message.
  • the UE sends the foregoing vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the present invention monitors the usage status of the VDC resource in advance and updates the locally stored VDC resource status list, when the vehicle service information needs to be transmitted (for example, the third type of vehicle service information with high transmission delay requirement) needs to be transmitted.
  • the base station requests the idle resource in the VDC resource status list, and then uses the VDC resource allocated by the base station to send the vehicle service information, the complex link establishment process is not required between the user equipment and the base station in the whole process, and therefore, the effective reduction is performed.
  • the transmission delay of the vehicle service information is reduced, and the experimental research data indicates that the transmission delay of the vehicle service information can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied. .
  • the VDC resource requesting method in the embodiment of the present invention is described below with reference to the base station. Referring to FIG. 5, the VDC resource requesting method in the embodiment of the present invention includes:
  • the VDC resource request message includes at least one of the following information: a VDC resource status list and driving information of the UE, where the VDC resource status list indicates an available VDC resource.
  • the foregoing VDC resource request message further includes: an RNTI of the UE, where the RNTI is allocated by the base station to the UE when the UE accesses the cellular network.
  • the driving information includes one or more of the following information: vehicle speed information of the vehicle where the UE is located, geographic location information of the vehicle where the UE is located, and/or driving direction.
  • the VDC is a vehicle direct communication technology based on the physical layer design of the Long Term Evolution (LTE) system, that is, the VDC communication is a direct communication between the UE and the UE, and the feature is: the base station is each cell.
  • LTE Long Term Evolution
  • each UE for example, an in-vehicle terminal, a handheld terminal, etc.
  • the UE sends the vehicle safety message, it only needs to use the VDC resource allocated by the base station to the UE.
  • the UE needs to receive as many signals as possible on the VDC resource in order to receive as many vehicle safety messages as possible from other surrounding UEs.
  • the vehicle safety message includes, for example, emergency braking information of a certain vehicle, and prompts the opposite side when the vehicle turns. There is information about the car, etc.
  • the vehicle safety message is mainly used to avoid vehicle collision.
  • the VDC resource request message carries the VDC resource status list
  • the base station broadcasts the VDC resource parameter information on the BCH of the spectrum of the cellular communication resource, where the VDC resource parameter information includes: the bandwidth of the VDC resource.
  • Channel partitioning and channel parameters of the VDC resource, and the channel parameters include, but are not limited to, a time domain resource of the channel, a frequency domain resource of the channel, a retransmission time of the channel, and a modulation and coding mode of the channel.
  • the base station may not broadcast the VDC resource parameter information.
  • the UE requests the VDC resource parameter information from the base station, and the base station generates a request to the UE after receiving the request of the UE.
  • VDC resource parameter information so that the UE monitors the usage status of the VDC resource, and updates the VDC resource status list maintained by the UE locally.
  • the VDC resource request message carries at least the driving information of the UE
  • the UE may be connected to the control management system of the vehicle in which the UE is located, and obtain the UE from the control management system of the vehicle where the UE is located.
  • the UE obtains the geographic location information, the driving direction, and the like of the vehicle where the UE is located by using a positioning module (such as a GPS module) that is provided by the UE, and the driving information further includes the geographic location information and the driving direction of the vehicle where the UE is located.
  • a positioning module such as a GPS module
  • the UE when the UE needs to request the VDC resource to send the vehicle service information, the UE sends the VDC resource request message to the base station.
  • the VDC resource request message carries the VDC resource status list and does not carry the driving information of the UE, and the base station selects the UE from the VDC resource status list according to the VDC resource status list carried in the VDC resource request message.
  • the currently available VDC resources are allocated to the UE.
  • the VDC resource request message carries the driving information of the UE and does not carry the VDC resource status list, and the driving information includes the vehicle speed information of the vehicle where the UE is located, and the base station performs the driving information according to the UE.
  • the UE is allocated the currently available VDC resources.
  • the base station divides a plurality of vehicle speed intervals, and establishes a correspondence relationship between the vehicle speed interval and the VDC resource. After the base station acquires the driving information of the UE, the base station can obtain the vehicle speed information of the vehicle where the UE is located, according to the vehicle speed of the vehicle where the UE is located.
  • the vehicle speed interval in which the information is located determines the VDC resource range, and further selects, from the determined VDC resource range, the VDC resource currently available to the UE for the UE, and allocates the VDC resource to the UE.
  • the VDC resources are classified into three categories, the first type of VDC resources correspond to a vehicle speed range of 90 km/h, and the second type of VDC resources correspond to a speed range of 60 km/h (excluding kilometers/hour).
  • the three categories correspond to the speed range below 60 km.
  • the base station learns from the VDC resource request message that the vehicle speed of the vehicle where the UE is located is /hour, and the base station determines the second type of VDC resource due to the hour/hour of the 60/hour vehicle speed interval.
  • the second available VDC resource selects the currently available VDC resource for the UE.
  • the VDC resource request message may also carry the VDC resource status list and the driving information of the UE at the same time, and the base station allocates the currently available VDC resource to the UE by combining the foregoing two implementation manners.
  • the eNB further exchanges the VDC resource occupation indication information with the neighboring base station of the base station, where the VDC resource occupation indication information is used to indicate the occupied VDC resources in the coverage area of the base station.
  • the base station allocates the currently available VDC resource to the UE by using the VDC resource request message of the UE and the VDC resource occupation indication information of the neighboring base station, so as to avoid the coverage area of the neighboring base station when the VDC resource is allocated to the UE.
  • the VDC resources inside are in conflict.
  • the VDC resource allocation indication message indicates that the eNB allocates VDC resources to the UE, so that the UE sends the vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the UE carries the driving information of the UE in the VDC resource request message, and the driving information of the UE includes the vehicle speed information of the vehicle where the UE is located, and the vehicle where the UE is located.
  • the geographic location information and the driving direction after the base station allocates the available VDC resources to the UE in step 502, further determines, according to the geographic location information of the vehicle where the UE is located, and the driving direction, the usage range of the VDC resource that the UE can use, and the foregoing usage range. Specifically, the length of time that can be used, that is, how long after the VDC resource allocation instruction is received; or the condition that the VDC resource needs to be replaced, for example, determining that the vehicle where the UE is located must apply for the resource again after reaching a certain location. .
  • the VDC resource allocation indication message sent by the base station carries the condition that the VDC resource usage range or the VDC resource needs to be replaced, so that the UE arrives at a predetermined time or when the vehicle where the UE is located satisfies the condition that the VDC resource needs to be replaced ( For example, when the vehicle where the UE is located reaches the designated location, the VDC resource request is re-initiated to the base station.
  • the base station uses a physical downlink shared channel (PDSCH, Physical)
  • PDSCH physical downlink shared channel
  • Physical The Downlink Shared Channel sends a VDC resource allocation indication message to the UE.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the base station of the present invention after receiving the VDC resource request message of the UE, allocates an available VDC resource to the UE according to the resource request message, and indicates the VDC resource to the UE by using a VDC resource allocation indication message.
  • the UE is configured to send the vehicle service information by using the VDC resource allocated by the base station according to the indication of the VDC resource allocation indication message, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the vehicle service information.
  • the transmission delay and the experimental research data show that, by transmitting the vehicle service information by the present invention, the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied.
  • the VDC resource requesting method in the embodiment of the present invention is further described in the following.
  • the VDC resource request message includes the VDC resource status list and the vehicle where the UE is located.
  • Driving information of course, based on the embodiment of the present invention and the foregoing embodiment, the VDC resource request message may also carry only one of the VDC resource status list and the driving information of the vehicle where the UE is located. Referring to FIG. 6, the present invention is implemented.
  • the VDC resource request method in the example includes:
  • the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter.
  • the base station broadcasts the VDC resource parameter information to the UEs in the coverage area of the BCH of the spectrum of the cellular communication resource, so that all UEs within the coverage area of the base station can obtain the broadcast of the base station.
  • the VDC resource parameter information and according to the obtained VDC resource parameter information, starts to monitor the usage status of the VDC resource in the area covered by the base station to update the VDC resource status list.
  • the base station receives an access preamble sequence of the UE.
  • each subframe in the area covered by the base station is configured to allow the UE to initiate access in the configuration of the access slot. This requires the base station to inform the UE in the broadcast message, or after the UE is authenticated, the base station uses dedicated signaling to inform the UE that the access can be initiated in all subframes. At the same time, the base station side also needs to ensure that it is ready to receive the access preamble (ie preamble) from the UE at any time.
  • the embodiment of the present invention presets an independent preamble set for the UE to request the VDC resource, and the preamble set includes one or more.
  • the preamble dedicated to the VDC resource request when the UE needs to request the VDC resource to send the vehicle service information, the UE selects a preamble from the preamble set, and sends the preamble to the base station. Specifically, when the UE needs to request the VDC resource to send the vehicle service information, The UE's MAC selects a preamble from the preamble set and sends it to the physical layer of the UE (ie, the PHY layer), and the PHY layer of the UE transmits the preamble to the base station in the next most recent subframe.
  • the physical layer of the UE ie, the PHY layer
  • the received access preamble sequence is a predetermined access preamble sequence
  • the base station when the base station determines that the received preamble is a predetermined preamble, for example, a preamble in the preamble set, the base station allocates an uplink grant value (ie, a UL grant) to the UE.
  • an uplink grant value ie, a UL grant
  • the base station allocates a sufficient UL grant to the UE when determining that the received preamble is a predetermined preamble.
  • the number of bytes of the geographic location information is 10-20 bytes
  • the VDC resource status list is related to the number of VDC resources.
  • the base station has two ways to allocate a UL grant to the UE: The number of bytes allocates a UL grant to the UE.
  • the second type uses the preamble to indicate the number of bytes that the UE requests to send.
  • the base station allocates a UL grant that is closest to or equal to the number of bytes requested by the UE according to the received preamble.
  • the base station will preamble. Classification is divided into three categories: the first type of preamble, and the number of bytes corresponding to the request is less than or equal to 128.
  • the number of bytes corresponding to the request is greater than 128 and less than or equal to 256; for the third type of preamble, the number of bytes corresponding to the request is between 256 and 384.
  • the classification of the preamble is not limited to the above three types, that is, the number of bytes of each type of preamble can be configured according to actual conditions.
  • the base station may broadcast the classification information of the preamble (including the number of bytes corresponding to each type of preamble) to the UE by using a broadcast message.
  • the base station determines that the TA of the UE can be implemented by referring to the existing solution, and details are not described herein again.
  • the access response message includes: a TA of the UE and an uplink grant value allocated by the base station to the UE. After the UE adjusts the transmission time according to the TA in the access response message, the UE sends a VDC resource request message to the base station according to the uplink grant value in the access response message.
  • the step 606 is similar to the step 501 in the embodiment shown in FIG. 5.
  • the specific implementation of the step 606 can be referred to the description in step 501, and details are not described herein again.
  • the base station allocates the currently available VDC resource to the UE according to the VDC resource status list carried in the VDC resource request message of the UE and the driving information of the UE.
  • the eNB further exchanges the VDC resource occupation indication information with the neighboring base station of the base station, where the VDC resource occupation indication information is used to indicate the occupied VDC resources in the coverage area of the base station.
  • the base station allocates the currently available VDC resource to the UE by using the VDC resource request message of the UE and the VDC resource occupation indication information of the neighboring base station, so as to avoid the coverage area of the neighboring base station when the VDC resource is allocated to the UE.
  • the VDC resources inside are in conflict.
  • the base station when the base station and the neighboring base station exchange respective VDC resource occupation information, the base station carries the driving direction information of the corresponding vehicle when each VDC resource is used, so that the base station that receives the VDC resource occupation information can determine Whether the occupied VDC resource can be used within the scope of the base station for a period of time after receiving the VDC resource occupation information without transmitting a resource conflict.
  • the base station b may wait for a period of time after receiving the VDC resource occupation information (for example, receiving the VDC resource occupation).
  • this VDC1 resource can be allocated to a UE that is far from the base station a and has just entered the base station b.
  • the VDC resource allocation indication message indicates that the eNB allocates VDC resources to the UE, so that the UE sends the vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the UE carries the driving information of the UE in the VDC resource request message, and the driving information of the UE includes the vehicle speed information of the vehicle where the UE is located, and the vehicle where the UE is located.
  • the geographic location information and the driving direction after the base station allocates the available VDC resources to the UE in step 607, further determines, according to the geographical location information of the vehicle where the UE is located, and the driving direction, the usage range of the VDC resource that the UE can use, and the foregoing usage range. Specifically, the length of time that can be used, that is, how long after the VDC resource allocation instruction is received; or the condition that the VDC resource needs to be replaced, for example, determining that the vehicle where the UE is located must apply for the resource again after reaching a certain location. .
  • the VDC resource allocation indication message sent by the base station carries the condition that the VDC resource usage range or the VDC resource needs to be replaced, so that the UE arrives at a predetermined time or when the vehicle where the UE is located satisfies the condition that the VDC resource needs to be replaced ( For example, when the vehicle where the UE is located reaches the designated location, the VDC resource request is re-initiated to the base station.
  • the base station sends a VDC resource allocation indication message to the UE by using the PDSCH.
  • the VDC resource request message carries the VDC resource status list and the driving information of the vehicle where the UE is located, and the VDC resource request message does not carry the VDC resource status list.
  • Step 601 can also be omitted.
  • the 604 may be omitted, that is, the base station may also be unsure of the TA of the UE, and the access response message sent in step 605 does not carry the TA of the UE, and the UE may use the downlink TA or the existing one. TA adjusts the transmission time point.
  • the UE in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or another terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the base station of the present invention after receiving the VDC resource request message of the UE, allocates an available VDC resource to the UE according to the resource request message, and indicates the VDC resource to the UE by using a VDC resource allocation indication message.
  • the UE is configured to send the vehicle service information by using the VDC resource allocated by the base station according to the indication of the VDC resource allocation indication message, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the vehicle service information.
  • the transmission delay and the experimental research data show that, by transmitting the vehicle service information by the present invention, the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied.
  • the embodiment of the present invention further provides a user equipment.
  • the user equipment 700 in the embodiment of the present invention includes:
  • the sending unit 701 is configured to send a VDC resource request message to the base station when the VDC resource needs to be requested to send the vehicle service information, where the VDC resource request message includes at least one of the following information: a VDC resource status list and driving information of the user equipment 700,
  • the VDC resource status list indicates the available VDC resources.
  • the driving information includes one or more of the following information: the vehicle speed information of the vehicle where the user equipment 700 is located, and the geographical location information of the vehicle where the user equipment 700 is located.
  • the VDC resource request message further includes: an RNTI of the UE, where the RNTI is allocated by the base station to the UE when the UE accesses the cellular network.
  • the receiving unit 702 is configured to receive a VDC resource allocation indication message from the foregoing base station, where the VDC resource allocation indication message indicates: the VDC resource allocated by the base station to the user equipment 700 according to the VDC resource request message;
  • the sending unit 702 is further configured to send the foregoing vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the VDC resource request message includes: the foregoing VDC resource status list; optionally, based on the embodiment shown in FIG. 7, as shown in FIG. 8, the user equipment 800 further includes: a monitoring unit. 703.
  • the device is configured to monitor the usage status of the VDC resource.
  • the update unit 704 is configured to update the locally stored VDC resource status list when the monitoring unit 703 detects that the usage status of the VDC resource changes.
  • the monitoring unit 703 includes: an acquiring unit, configured to acquire VDC resource parameter information that is broadcast by the base station, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter; and a monitoring subunit, And configured to monitor the usage status of the VDC resource according to the foregoing VDC resource parameter information acquired by the acquiring unit.
  • the sending unit 701 is further configured to: before sending the VDC resource request message to the base station, send a predetermined access preamble sequence to the base station, so that the base station learns that the user equipment currently needs to apply according to the predetermined access preamble sequence.
  • a VDC resource, and an uplink grant value is allocated to the user equipment;
  • the receiving unit 702 is further configured to: receive an access response message from the base station, where the access response message includes: an uplink grant value allocated by the base station to the user equipment.
  • the sending unit 701 is specifically configured to: send a VDC resource request message to the base station according to the uplink grant value in the access response message.
  • the base station determines the TA of the UE, and carries the TA of the UE in the access response message, so that the UE adjusts the sending time point according to the TA.
  • the VDC in the embodiment of the present invention is a vehicle direct communication technology based on the physical layer design of the LTE system, that is, the VDC communication is a direct communication between the UE and the UE, and the feature is that the base station independently configures the VDC for each cell.
  • each user equipment can obtain parameter information of a VDC resource by receiving a broadcast configuration message of the base station or by establishing a proprietary link with the base station, for example, the VDC within the coverage area of the base station.
  • the user equipment sends the vehicle safety message, it only needs to use the VDC resource allocated by the base station to the user equipment.
  • the user equipment needs to receive as many signals as possible on the VDC resources in order to receive as many vehicle safety messages as possible from other surrounding user equipments.
  • the vehicle safety messages include, for example, emergency braking information of a certain vehicle, when the vehicle turns. Prompt information on the opposite side of the vehicle, vehicle safety messages are mainly used to avoid vehicle collision.
  • the user equipment in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or other terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the user equipment in the embodiment of the present invention may be used as the user equipment in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the various functional modules may be implemented according to the method in the foregoing method embodiment.
  • For the specific implementation process reference may be made to the related description in the foregoing embodiments, and details are not described herein again.
  • the RRC resource request message is sent to the base station, so that the base station according to the VDC resource.
  • the request message allocates available VDC resources to the user equipment, and then the user equipment sends the vehicle service information by using the VDC resource allocated by the base station, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the
  • the transmission delay of the vehicle service information, and experimental research data indicates that the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied by transmitting the vehicle service information according to the present invention.
  • the embodiment of the present invention further provides another user equipment.
  • the user equipment 900 in the embodiment of the present invention includes: one or more computer readable storage media.
  • the user equipment structure shown in FIG. 9 does not constitute a limitation to the user equipment, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements. among them:
  • the memory 901 can be used to store software programs and modules, and the processor 904 executes various functional applications and data processing by running software programs and modules stored in the memory 901.
  • the memory 901 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the user device 900 (such as audio data, vehicle travel information, etc.), and the like.
  • the memory 901 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 901 may also include a memory controller to provide access to the memory 901 by the processor 904 and the input unit 902.
  • the input unit 902 can be configured to receive input numeric or character information, and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.
  • the input unit 902 can be embodied as a receiver.
  • the input unit 902 includes a touch-sensitive surface 9021 and other input devices 9022.
  • Touch-sensitive surface 9021 also referred to as a touch display or trackpad, can collect touch operations on or near the user (eg, the user uses a finger, stylus, etc., on any touch-sensitive surface 9021 or on the touch-sensitive surface 9021. The operation near the touch-sensitive surface 9021) and driving the corresponding connecting device according to a preset program.
  • the touch sensitive surface 9021 can include two portions of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 904 is provided and can receive commands from the processor 904 and execute them.
  • the touch-sensitive surface 9021 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 902 can also include other input devices 9022.
  • other input devices 9022 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 903 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the mobile terminal 900, which can be composed of graphics, text, icons, video, and any combination thereof.
  • the display unit 903 can include a display panel 9031.
  • the display panel 9031 can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
  • the touch-sensitive surface 9021 can cover the display panel 9031, and when the touch-sensitive surface 9021 detects a touch operation thereon or nearby, it is transmitted to the processor 904 to determine the type of the touch event, and then the processor 904 is based on the touch event.
  • touch-sensitive surface 9021 and display panel 9031 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 9021 can be integrated with display panel 9031 for input. And output function.
  • the processor 904 is the control center of the user device 900, connecting various portions of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the memory 901, and recalling data stored in the memory 901.
  • the various functions and processing data of the user equipment 900 are performed to thereby perform overall monitoring of the user equipment 900.
  • the processor 904 may include one or more processing cores; preferably, the processor 904 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. Of course, the above modem processor may also not be integrated into the processor 904.
  • the user equipment 900 also includes a power source 905 (such as a battery) that supplies power to the various components.
  • the power source can be logically coupled to the processor 904 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the power supply 905 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
  • the user equipment 900 may also include a transmitter (eg, radio frequency (RF) circuitry), sensors, audio circuitry, wireless fidelity (WiFi, wireless Fidelity) module, camera, Bluetooth module, etc., will not be described here.
  • RF radio frequency
  • user equipment 900 further includes one or more programs stored in memory 901 and configured to execute, by one or more processors 904, one or more programs including instructions for performing the following operations :
  • the VDC resource request message is sent to the base station, where the VDC resource request message includes at least one of the following information: the VDC resource status list and the driving information of the user equipment 900,
  • the VDC resource status list indicates the available VDC resources.
  • the driving information includes one or more of the following information: the vehicle speed information of the vehicle where the user equipment 700 is located, and the geographical location information of the vehicle where the user equipment 700 is located.
  • VDC resource allocation indication message indicates: the VDC resource allocated by the base station to the user equipment 600 according to the VDC resource request message;
  • the above vehicle service information is transmitted using the VDC resource indicated by the VDC resource allocation indication message.
  • the foregoing VDC resource request message includes: the foregoing VDC resource status list; and the processor 904 Also execute the following instructions:
  • the VDC resource status list stored in the memory 901 is updated when the usage status of the VDC resource changes.
  • the foregoing monitoring the usage status of the VDC resource includes: acquiring VDC resource parameter information that is broadcast by the base station, where the VDC resource parameter information includes: The bandwidth of the VDC resource, the channel division of the VDC resource, and the channel parameter; and the usage status of the VDC resource is monitored according to the obtained VDC resource parameter information.
  • the foregoing sending the VDC resource request message to the base station includes: Sending a predetermined access preamble sequence to the foregoing base station, so that the base station learns that the user equipment 900 needs to apply for a VDC resource according to the predetermined access preamble sequence, and allocates an uplink grant value to the user equipment 900; and receives an access response from the base station. a message, where the access response message includes: an uplink grant value allocated by the base station to the user equipment 900;
  • the sending the VDC resource request message to the base station is specifically: sending a VDC resource request message to the base station according to the uplink grant value in the access response message.
  • the user equipment in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or other terminal that can be connected to the control management system of the vehicle, which is not limited herein.
  • the user equipment in the embodiment of the present invention may be used as the user equipment in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the various functional modules may be implemented according to the method in the foregoing method embodiment.
  • For the specific implementation process reference may be made to the related description in the foregoing embodiments, and details are not described herein again.
  • the RRC resource request message is sent to the base station, so that the base station according to the VDC resource.
  • the request message allocates available VDC resources to the user equipment, and then the user equipment sends the vehicle service information by using the VDC resource allocated by the base station, and the complex link establishment process is not required between the user equipment and the base station in the whole process, thereby effectively reducing the
  • the transmission delay of the vehicle service information, and experimental research data indicates that the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied by transmitting the vehicle service information according to the present invention.
  • the base station 1000 in the embodiment of the present invention includes: a first receiving unit 1001, configured to receive a VDC resource request message from a user equipment, where the VDC resource is used.
  • the request message includes at least one of the following information: a VDC resource status list and the driving information of the user equipment, where the VDC resource status list indicates an available VDC resource.
  • the driving information includes one or more of the following information. : vehicle speed information of the vehicle where the user equipment 700 is located, geographical location information of the vehicle where the user equipment 700 is located, and driving direction;
  • the first allocating unit 1002 is configured to allocate the currently available VDC resource to the user equipment according to the VDC resource request message of the user equipment received by the first receiving unit 1001;
  • the first sending unit 1003 is configured to send a VDC resource allocation indication message to the user equipment, where the VDC resource allocation indication message indicates that the first allocation unit 1002 allocates VDC resources for the user equipment, so that the user equipment uses the VDC.
  • the VDC resource indicated by the resource allocation indication message transmits vehicle service information.
  • the foregoing VDC resource request message includes: the foregoing VDC resource status list.
  • the base station in the embodiment of the present invention further includes: a broadcast unit, configured to be within the coverage of the base station.
  • the user equipment broadcasts the VDC resource parameter information, where the VDC resource parameter information includes: a bandwidth of the VDC resource, a channel division of the VDC resource, and a channel parameter.
  • the foregoing VDC resource request message includes: the driving information of the user equipment, and the driving information includes vehicle speed information of the vehicle where the user equipment is located; the first allocating unit 1002 is specifically configured to: according to the vehicle speed information of the vehicle where the user equipment is located The vehicle speed range is determined, and the VDC resource range is determined. The user equipment is allocated the currently available VDC resource from the determined VDC resource range, where the vehicle speed interval has a corresponding relationship with the VDC resource range.
  • the base station in the embodiment of the present invention further includes: a second receiving unit, configured to receive VDC resource occupation indication information from the neighboring base station, where the VDC resource occupation indication information of the neighboring base station is used to indicate the foregoing neighboring base station
  • the first locating unit 1002 is configured to allocate the currently available VDC to the user equipment according to the VDC resource request message of the user equipment and the VDC resource occupation indication information of the neighboring base station. Resources.
  • the base station in the embodiment of the present invention further includes: a third receiving unit, configured to receive an access preamble sequence of the user equipment; and a second allocation unit, configured to determine that the access preamble sequence is a predetermined access And the determining unit is configured to determine a timing advance of the user equipment, and the second sending unit is configured to send an access response message to the user equipment, where the access response is sent by the foregoing user equipment.
  • the message includes: a timing advance of the user equipment, and an uplink grant value allocated by the base station to the user equipment.
  • the access preamble sequence of the user equipment is further used to indicate the number of bytes that the user equipment requests to send;
  • the second allocation unit is specifically configured to: according to the access preamble of the user equipment received by the third receiving unit The sequence allocates an uplink grant value that is greater than or equal to the number of bytes requested by the user equipment to be sent by the user equipment.
  • the base station in the embodiment of the present invention may be used as the base station in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the respective functional modules may be in accordance with the foregoing method embodiments.
  • the specific implementation of the method may be referred to the related description in the foregoing embodiments, and details are not described herein again.
  • the base station after receiving the VDC resource request message of the user equipment, the base station allocates an available VDC resource to the user equipment according to the resource request message, and indicates the user equipment by using a VDC resource allocation indication message.
  • the VDC resource enables the user equipment to use the VDC resource allocated by the base station to send the vehicle service information according to the indication of the VDC resource allocation indication message.
  • the complex link establishment process is not required between the user equipment and the base station, thereby effectively reducing
  • the transmission delay of the vehicle service information and experimental research data shows that, by transmitting the vehicle service information by the present invention, the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied.
  • the base station 1100 in the embodiment of the present invention includes:
  • the input device 1101 for example, a receiver
  • the output device 1102 for example, a transmitter
  • the memory 1103, and the processor 1104 the number of the processors 1104 of the base station 1100 may be one or more, and one processor of FIG. 11 is taken as an example).
  • the input device 1101, the output device 1102, the memory 1103, and the processor 1104 may be connected by a bus or other means, as shown in FIG.
  • the memory 1103 is used to store data input from the input device 1101, and may also store information such as necessary files processed by the processor 1104.
  • the input device 1101 and the output device 1102 may include a port through which the base station 1100 communicates with other devices.
  • the ports of the input device 1101 and the output device 1102 that communicate with other devices in this embodiment may be antennas and/or cables.
  • the processor 1104 performs the following steps:
  • VDC resource request message includes at least one of: a VDC resource status list and the driving information of the UE, where the VDC resource status list indicates an available VDC resource
  • the driving information includes one or more of the following information: the vehicle speed information of the vehicle where the UE is located, the geographical location information of the vehicle where the UE is located, and the driving direction;
  • VDC resource allocation indication message indicates the VDC resource allocated by the processor 1104 to the UE, so that the UE sends the vehicle service information by using the VDC resource indicated by the VDC resource allocation indication message.
  • the base station in the embodiment of the present invention may be used as the base station in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the respective functional modules may be in accordance with the foregoing method embodiments.
  • the specific implementation of the method may be referred to the related description in the foregoing embodiments, and details are not described herein again.
  • the base station after receiving the VDC resource request message of the user equipment, the base station allocates an available VDC resource to the user equipment according to the resource request message, and indicates the user equipment by using a VDC resource allocation indication message.
  • the VDC resource enables the user equipment to use the VDC resource allocated by the base station to send the vehicle service information according to the indication of the VDC resource allocation indication message.
  • the complex link establishment process is not required between the user equipment and the base station, thereby effectively reducing
  • the transmission delay of the vehicle service information and experimental research data shows that, by transmitting the vehicle service information by the present invention, the transmission delay can be guaranteed within 100 milliseconds, that is, the transmission delay requirement of the third type of vehicle service information can be satisfied.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), and a random access memory (RAM, Random Access).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种VDC资源请求方法、用户设备和基站,其中,一种VDC资源请求方法包括:在用户设备需要请求VDC资源发送车辆服务信息时,上述用户设备向基站发送VDC资源请求消息,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和上述用户设备的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源;接收来自基站的VDC资源分配指示消息;使用上述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。本发明提供的技术方案能够有效减小车辆服务信息的传输时延。

Description

一种VDC资源请求方法、用户设备和基站  技术领域
本发明涉及通讯领域,具体涉及一种车辆直接通讯(VDC,Vehicle Direct Communication)资源请求方法、用户设备和基站。
背景技术
车联网,即车辆互联网络,车辆终端安装移动通讯模块,可以利用移动通讯网络实现车辆之间的通讯。
车联网的车辆服务信息分为3类: 第一类车辆服务信息为信息娱乐服务,车辆中的用户可以使用车联网进行各种娱乐活动;第二类车辆服务信息为车辆效率类信息服务,这些信息由道路管理部门或者由道路的交通参与者发布,主要包括:道路的拥堵信息、道路的施工信息、某路段限速、某路段的天气以及路面是否可通行等信息;第三类车辆服务信息为车辆安全消息,例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
第一类车辆服务信息和第二类车辆服务信息可以通过第三移动通讯网络(即3G)、第四代移动通讯网络(即4G)等通讯方式从云端获取,这必须要使用广域覆盖的网络。
对于第三类车辆服务信息,由于第三类车辆服务信息是车辆自身的行驶信息,而车辆都是在快速移动中,因此,要达到避免碰撞的效果,第三类车辆服务信息的传输对传输时延的要求较高(通常传输时延要求在100毫秒之内),由于蜂窝网络覆盖太广,而且链路建立的过程比较复杂,因此蜂窝网络的传输时间较大,若使用3G、4G等蜂窝网络传输第三类车辆服务信息,则无法满足第三类车辆服务信息的传输时延要求,而当传输时延不满足第三类车辆服务信息的传输时延要求时,第三类车辆服务信息便可能无法及时发送到车辆终端,从而可能导致交通事故的发生。
技术问题
本发明提供一种VDC资源请求方法、用户设备和基站,用于减小车辆服务信息的传输时延。
技术解决方案
本发明第一方面提供一种VDC资源请求方法,包括:
在所述用户设备需要请求VDC资源发送车辆服务信息时,所述用户设备向基站发送VDC资源请求消息,所述VDC资源请求消息包括如下信息中的至少一个:所述VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
所述用户设备接收来自所述基站的VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示:所述基站根据所述VDC资源请求消息为所述用户设备分配的VDC资源;
所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送所述车辆服务信息。
基于本发明第一方面,在第一种可能的实现方式中,所述VDC资源请求消息包括:所述VDC资源状态列表;
所述方法还包括:
所述用户设备监听VDC资源的使用状况;
在监听到VDC资源的使用状况发生变化时,所述用户设备更新本地存储的VDC资源状态列表;
基于本发明第一方面的第一种可能的实现方式,在第二种可能的实现方式中,所述用户设备监听车辆直接通讯VDC资源的使用状况,包括:
获取基站广播的VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;
根据获取的所述VDC资源参数信息,监听VDC资源的使用状况。
基于本发明第一方面,或者本发明第一方面的第一种可能的实现方式,或者本发明第一方面的第二种可能的实现方式,在第三种可能的实现方式中,所述用户设备向基站发送VDC资源请求消息,之前包括:
所述用户设备向所述基站发送预定的接入前导序列,以便所述基站根据所述预定的接入前导序列获知所述用户设备当前需要申请VDC资源,并为所述用户设备分配上行授权值;
接收来自所述基站的接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值;
所述用户设备向基站发送VDC资源请求消息,具体为:
所述用户设备根据所述接入应答消息中的上行授权值向所述基站发送VDC资源请求消息。
本发明第二方面保护另一种VDC资源请求方法,包括:
接收来自用户设备的VDC资源请求消息,其中,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源;
向所述用户设备发送VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示所述基站为所述用户设备分配的VDC资源,以便所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
基于本发明第二方面,在第一种可能的实现方式中,所述VDC资源请求消息包括:所述VDC资源状态列表;
所述接收来自用户设备的VDC资源请求消息,之前还包括:
向所述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
基于本发明第二方面,在第二种可能的实现方式中,所述VDC资源请求消息包括:所述用户设备的行车信息,所述行车信息包括所述用户设备所在车辆的车速信息;
所述根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源,包括:
根据所述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围,其中,车速区间与VDC资源范围存在对应关系;
从确定的所述VDC资源范围中,为所述用户设备分配当前可用的VDC资源。
基于本发明第二方面,或者本发明第二方面的第一种可能的实现方式,或者本发明第二方面的第二种可能的实现方式,在第三种可能的实现方式中,所述方法还包括:
接收来自相邻基站的VDC资源占用指示信息,所述相邻基站的VDC资源占用指示信息用于指示所述相邻基站的覆盖区域内已占用的VDC资源;
所述根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源,包括:
根据所述用户设备的VDC资源请求消息,以及所述相邻基站的VDC资源占用指示信息,为所述用户设备分配当前可用的VDC资源。
基于本发明第二方面,或者本发明第二方面的第一种可能的实现方式,或者本发明第二方面的第二种可能的实现方式,在第四种可能的实现方式中,所述接收来自用户设备的车辆直接通讯VDC资源请求消息之前,包括:
接收所述用户设备的接入前导序列;
当确定所述接入前导序列为预定的接入前导序列时,为所述用户设备分配上行授权值;
向所述用户设备发送接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值。
基于本发明第二方面的第四种可能的实现方式,在第五种可能的实现方式中,所述用户设备的接入前导序列还用于指示所述用户设备请求发送的字节数;
所述为所述用户设备分配上行授权值,包括:根据所述用户设备的接入前导序列,为所述用户设备分配大于或等于所述用户设备请求发送的字节数的上行授权值。
本发明第三方面提供一种用户设备,包括:
发送单元,用于在需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息,所述VDC资源请求消息包括如下信息中的至少一个:所述VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
接收单元,用于接收来自所述基站的VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示:所述基站根据所述VDC资源请求消息为所述用户设备分配的VDC资源;
所述发送单元还用于使用所述VDC资源分配指示消息指示的VDC资源发送所述车辆服务信息。
基于本发明第三方面,在第一种可能的实现方式中,所述VDC资源请求消息包括:所述VDC资源状态列表;
所述用户设备还包括:
监听单元,用于监听车辆直接通讯VDC资源的使用状况;
更新单元,用于当所述监听单元监听到VDC资源的使用状况发生变化时,更新本地存储的VDC资源状态列表;
基于本发明第三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述监听单元包括:
获取单元 ,用于获取基站广播的VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;
监听子单元,用于根据所述获取单元获取的所述VDC资源参数信息,监听VDC资源的使用状况。
基于本发明第三方面,或者本发明第三方面的第一种可能的实现方式,或者本发明第三方面的第二种可能的实现方式,在第三种可能的实现方式中,所述发送单元还用于:在向基站发送VDC资源请求消息之前,向所述基站发送预定的接入前导序列,以便所述基站根据所述预定的接入前导序列获知所述用户设备当前需要申请VDC资源,并为所述用户设备分配上行授权值;
所述接收单元还用于:接收来自所述基站的接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值;
所述发送单元具体用于:根据所述接入应答消息中的上行授权值向所述基站发送VDC资源请求消息。
本发明第四方面提供一种基站,包括:
第一接收单元,用于接收来自用户设备的车辆直接通讯VDC资源请求消息,其中,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和上述用户设备的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源;
第一分配单元,用于根据上述第一接收单元接收的上述用户设备的VDC资源请求消息,为上述用户设备分配当前可用的VDC资源;
第一发送单元,用于向上述用户设备发送VDC资源分配指示消息,其中,上述VDC资源分配指示消息中指示上述第一分配单元为上述用户设备分配的VDC资源,以便上述用户设备使用上述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
基于本发明第四方面,在第一种可能的实现方式中,所述VDC资源请求消息包括:所述VDC资源状态列表;
上述基站还包括:
广播单元,用于向上述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,上述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
基于本发明第四方面,在第二种可能的实现方式中,所述VDC资源请求消息包括:所述用户设备的行车信息,上述行车信息包括上述用户设备所在车辆的车速;
所述第一分配单元具体用于:根据所述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围;从确定的所述VDC资源范围中,为所述用户设备分配当前可用的VDC资源,其中,车速区间与VDC资源范围存在对应关系。
基于本发明第四方面,或者本发明第四方面的第一种可能的实现方式,或者本发明第四方面的第二种可能的实现方式,在第三种可能的实现方式中,第二接收单元,用于接收来自相邻基站的VDC资源占用指示信息,所述相邻基站的VDC资源占用指示信息用于指示所述相邻基站的覆盖区域内已占用的VDC资源;
所述第一分配单元具体用于:根据所述用户设备的VDC资源请求消息,以及所述相邻基站的VDC资源占用指示信息,为所述用户设备分配当前可用的VDC资源。
基于本发明第四方面,或者本发明第四方面的第一种可能的实现方式,或者本发明第四方面的第二种可能的实现方式,在第四种可能的实现方式中,所述基站还包括:
第三接收单元,用于接收所述用户设备的接入前导序列;
第二分配单元,用于当确定所述接入前导序列为预定的接入前导序列时,为所述用户设备分配上行授权值;
确定单元,用于确定所述用户设备的时间提前量;
第二发送单元,用于向所述用户设备发送接入应答消息,其中,所述接入应答消息包括:所述用户设备的时间提前量以及所述基站为所述用户设备分配的上行授权值。
基于本发明第四方面的第四种可能的实现方式,在第五种可能的实现方式中,所述用户设备的接入前导序列还用于指示所述用户设备请求发送的字节数;
所述第二分配单元具体用于:根据所述第三接收单元接收的所述用户设备的接入前导序列,为所述用户设备分配大于或等于所述用户设备请求发送的字节数的上行授权值。
有益效果
从本发明上述技术方案可知,本发明在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),向基站发送VDC资源请求消息,使基站根据该VDC资源请求消息为用户设备分配可用的VDC资源,之后用户设备使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本发明提供的一种VDC资源请求方法一个实施例流程示意图;
图2为本发明提供的一种VDC资源请求方法另一个实施例流程示意图;
图3为本发明提供的一种VDC资源请求方法再一个实施例流程示意图;
图4为本发明提供的一种VDC资源请求方法再一个实施例流程示意图;
图5为本发明提供的一种VDC资源请求方法再一个实施例流程示意图;
图6为本发明提供的一种VDC资源请求方法再一个实施例流程示意图;
图7为本发明提供的一种用户设备一个实施例结构示意图;
图8为本发明提供的一种用户设备另一个实施例结构示意图;
图9为本发明提供的一种用户设备再一个实施例结构示意图;
图10为本发明提供的一种基站一个实施例结构示意图;
图11为本发明提供的一种基站另一个实施例结构示意图。
本发明的实施方式
为使得本发明的发明目的、特征、优点能够更加的明显和易懂,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而非全部实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
下面以用户设备(UE,User Equipment)为描述主体,对本发明实施例中的一种VDC资源请求方法进行描述,请参阅图1,本发明实施例中的VDC资源请求方法,包括:
101、在UE需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息;
其中,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和该UE的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源。
本发明实施例中,VDC是基于长期演进(LTE,Long Term Evolution)系统物理层设计的车辆直通技术,即VDC通信为UE与UE之间的直通通信,它的特点是:基站为每个小区独立配置VDC资源,每个UE(例如车载终端、手持终端等)通过接收基站的广播配置消息或者是通过与基站建立专有的链接可以获得VDC资源的参数信息,例如,该基站覆盖区域范围内的VDC资源的总带宽、每个VDC资源对应的信道的时频资源配置参数,以及UE各自可以使用的VDC资源对应的信道的信道标识(例如信道号)等。UE发送车辆安全消息时只需使用基站分配给该UE的VDC资源即可。另外,UE需要尽可能多地接收VDC资源上的信号,以便尽可能多地接收到周围其他UE发送的车辆安全消息,车辆安全消息例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
可选的,UE可以通过监听VDC资源的使用状况,在该UE本地维护上述VDC资源状态列表,并在UE需要请求VDC资源发送车辆服务信息,向基站发送携带本地维护的VDC资源状态列表的VDC资源请求消息,以便基站根据该VDC资源状态列表为该UE分配VDC资源。
可选的,上述VDC资源请求消息还包括:该UE的无线网络临时标识(RNTI, Radio Network Tempory Identity),该RNTI为UE在接入蜂窝网络时由基站分配给该UE。
可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和/或行车方向。
本发明实施例中,UE请求VDC资源主要用于发送第三类车辆服务信息,当然,UE也可以请求VDC资源发送其它车辆服务信息。
可选的,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该车辆的行驶信息(例如车速信息、刹车信息、转弯信息等),可选的,UE可以使用自身配备的定位模块(例如全球定位系统(GPS,Global Positioning System)模块)获得该UE所在车辆的地理位置信息、行车方向等,UE根据获得的车辆的地理位置信息、行车方向、行驶信息等,生成一个或者多个第三类车辆服务信息,当UE每生成一个第三类车辆服务信息时,向基站请求VDC资源发送生成的第三类车辆服务信息,在本发明实施例中,UE向基站发送上述VDC资源请求消息。需要说明的是,本发明实施例中的第三类车辆服务信息的生成具体可以参照现有的第三类车辆服务信息的生成方式实现,此处不再赘述。
102、UE接收来自基站的VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为上述UE分配的VDC资源。
103、UE使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),向基站发送VDC资源请求消息,使基站根据该VDC资源请求消息为用户设备分配可用的VDC资源,之后用户设备使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面以UE为描述主体,对本发明实施例中的一种VDC资源请求方法进一步进行描述,本发明实施例中,VDC资源请求消息携带VDC资源状态列表,请参阅图2,本发明实施例中的VDC资源请求方法,包括:
201、UE监听VDC资源的使用状况;
本发明实施例中,VDC是基于LTE系统物理层设计的车辆直通技术,即VDC通信为UE与UE之间的直通通信,它的特点是:基站为每个小区独立配置VDC资源,每个UE(例如车载终端、手持终端等)通过接收基站的广播配置消息或者是通过与基站建立专有的链接可以获得VDC资源的参数信息,例如, 该基站覆盖区域范围内的VDC资源的总带宽、每个VDC资源对应的信道的时频资源配置参数,以及UE各自可以使用的VDC资源对应的信道的信道标识(例如信道号)等。UE发送车辆安全消息时只需使用基站分配给该UE的VDC资源即可。另外,UE需要尽可能多地接收VDC资源上的信号,以便尽可能多地接收到周围其他UE发送的车辆安全消息,车辆安全消息例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
本发明实施例中,VDC资源被基站管理,但是VDC资源有可能不是基站和UE之间蜂窝通信使用的资源,例如:基站与UE之间的蜂窝通信资源是2.6吉赫兹(即GHZ)的频谱,而VDC资源是5.9GHZ的频谱;或者,基站与UE之间的蜂窝通信资源是2.6GHZ的频分双工(FDD,Frequency Division Duplexing)频谱,而VDC资源是2.6GHZ的时分双工(TDD,Time Division Duplexing)的频谱。
可选的,基站在蜂窝通信资源的频谱的广播信道(BCH,Broadcast Channel)上广播VDC资源参数信息,VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数,上述信道参数包括但不限于:信道的时域资源、信道的频域资源、信道的重发时刻和信道的调制编码方式等。这样所有的在该基站的覆盖区域范围内的UE都可以获取到基站广播的VDC资源参数信息,并根据获取的VDC资源参数信息,开始监听该基站覆盖的区域范围内的VDC资源的使用状况,以此获知在该基站的覆盖区域范围内,哪些VDC资源当前被占用、哪些VDC资源当前为空闲(即可用)。或者,本发明实施例中,基站也可以不广播VDC资源参数信息,当UE进入该基站的覆盖区域范围时,UE向基站请求VDC资源参数信息,基站在接收到UE的请求后向该UE发生VDC资源参数信息,以便UE监听VDC资源的使用状况。当然,除上述两种方式外,也可以通过其它方式实现UE对VDC资源的使用状况的监听,此处不作限定。
需要说明的是,本发明实施例中,VDC资源被占用的判定标准是:UE检测到VDC资源上的能量大于预设的门限值,VDC资源空闲的判定标准是:UE检测到VDC资源上的能量不大于该门限值。即,当UE检测到某个VDC资源上的能量大于预设的门限值时,该UE判定该VDC资源当前被占用,当UE检测到某个VDC资源上的能量不大于预设的门限值时,该UE判定该VDC资源当前空闲。其中,上述能量通常用功率值表示。
202、在监听到VDC资源的使用状况发生变化时,UE更新本地存储的VDC资源状态列表;
其中,上述VDC资源状态列表中指示可用的VDC资源。
举例说明,假设存在四个信道,信道号分别为5、6、7和9,四个信道分别对应不同的VDC资源,则UE1维护的VDC资源状态列表可以如表1所示:
     表1
信道号 状态
5 空闲
6 占用
7 空闲
9 占用
在表1中,状态为空闲的信道对应的VDC资源为UE1当前可用的VDC资源,状态为占用的信道对应的VDC资源为UE1当前不可用的VDC资源。
当UE1在监听到VDC资源的使用状况发生变化时,例如UE1监测到信道号为5的信道对应的VDC资源被占用,信道号为6的信道对应的VDC资源未被占用,则UE1对表1的VDC资源状态列表进行更新,更新后的VDC资源状态列表如表2所示;
表2
信道号 状态
5 占用
6 空闲
7 空闲
9 占用
203、在UE需要请求VDC资源发送车辆服务信息时,该UE向基站发送VDC资源请求消息;
其中,上述VDC资源请求消息包括:上述VDC资源状态列表。
可选的,上述VDC资源请求消息还包括:该UE的行车信息和/或该UE的RNTI,该RNTI为UE在接入蜂窝网络时由基站分配给该UE。可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和/或行车方向。本发明实施例中,UE请求VDC资源主要用于发送第三类车辆服务信息,当然,UE也可以请求VDC资源发送其它车辆服务信息。
可选的,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该车辆的行驶信息(例如车速信息、刹车信息、转弯信息等),可选的,UE可以使用自身配备的定位模块(例如GPS模块)获得该UE所在车辆的地理位置信息、行车方向等,UE根据获得的车辆的地理位置信息、行车方向、行驶信息等,生成一个或者多个第三类车辆服务信息,当UE每生成一个第三类车辆服务信息时,向基站请求VDC资源发送生成的第三类车辆服务信息,在本发明实施例中,UE向基站发送上述VDC资源请求消息。需要说明的是,本发明实施例中的第三类车辆服务信息的生成具体可以参照现有的第三类车辆服务信息的生成方式实现,此处不再赘述。
204、UE接收来自基站的VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为上述UE分配的VDC资源。
205、UE使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明预先监听VDC资源的使用状况并更新本地存储的VDC资源状态列表,在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),通过基站请求VDC资源状态列表中的空闲资源,之后使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面以UE为描述主体,对本发明实施例中的一种VDC资源请求方法进一步进行描述,本发明实施例中,VDC资源请求消息携带该UE所在车辆的行车信息,请参阅图3,本发明实施例中的VDC资源请求方法,包括:
301、在UE需要请求VDC资源发送车辆服务信息时,获取该UE的行车信息;
可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和/或行车方向。
本发明实施例中,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该UE所在车辆的车速信息。另外,UE可以使用自身配备的定位模块(例如GPS模块)获得该UE所在车辆的地理位置信息、行车方向等。
302、向基站发送VDC资源请求消息;
上述VDC资源请求消息包括步骤301获取的该UE的行车信息。
可选的,VDC资源请求消息还可以包括:VDC资源状态列表和/或该UE的RNTI,其中,该RNTI为UE在接入蜂窝网络时由基站分配给该UE,上述VDC资源状态列表中指示可用的VDC资源。可选的,UE可以通过监听VDC资源的使用状况,在该UE本地维护该VDC资源状态列表,具体的,UE维护本地VDC资源状态列表的方式可以参照图2所示实施例中步骤202的描述,此处不再赘述。
本发明实施例中,VDC是基于LTE系统物理层设计的车辆直通技术,即VDC通信为UE与UE之间的直通通信,它的特点是:基站为每个小区独立配置VDC资源,每个UE(例如车载终端、手持终端等)通过接收基站的广播配置消息或者是通过与基站建立专有的链接可以获得VDC资源的参数信息,例如, 该基站覆盖区域范围内的VDC资源的总带宽、每个VDC资源对应的信道的时频资源配置参数,以及UE各自可以使用的VDC资源对应的信道的信道标识(例如信道号)等。UE发送车辆安全消息时只需使用基站分配给该UE的VDC资源即可。另外,UE需要尽可能多地接收VDC资源上的信号,以便尽可能多地接收到周围其他UE发送的车辆安全消息,车辆安全消息例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
303、UE接收来自基站的VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为上述UE分配的VDC资源。
304、UE使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),获取该UE的行车信息,向基站发送携带该UE的行车信息的VDC资源请求消息,以便基站根据该VDC资源请求消息为用户设备分配可用的VDC资源,用户设备使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面以UE为描述主体,对本发明实施例中的一种VDC资源请求方法进一步进行描述,本发明实施例中包括UE请求接入的方案,且VDC资源请求消息携带VDC资源状态列表和UE所在车辆的行车信息,当然,在本发明实施例和前述实施例的基础上,VDC资源请求消息也可以只携带VDC资源状态列表和UE所在车辆的行车信息中的一个,请参阅图4,本发明实施例中的VDC资源请求方法,包括:
401、UE监听VDC资源的使用状况;
其中,步骤401与图2所示实施例中步骤201类似,步骤201的具体实现方式可以参照步骤201中的描述,此处不再赘述。
402、在监听到VDC资源的使用状况发生变化时,UE更新本地存储的VDC资源状态列表;
其中,上述VDC资源状态列表中指示可用的VDC资源。
步骤402与图2所示实施例中的步骤202类似,其具体实现过程可以参照图2所示实施例的步骤202中描述,此处不再赘述。
403、在需要UE需要请求VDC资源发送车辆服务信息时,该UE向基站发送预定的接入前导序列;
由于第三类车辆服务信息具有突发性,因此本发明实施例中,在接入时隙的配置上,将基站覆盖的区域范围内的每个子帧都配置为可以让UE发起接入。这需要基站在广播消息中通知UE,或者在UE鉴权之后,基站使用专用的信令通知该UE可以在所有的子帧发起接入。同时基站侧也需要保证自己随时准备接收来自UE的接入前导序列(即preamble)。由于基站同时提供蜂窝网络和VDC的服务,为了使得基站能够快速处理来自UE的VDC资源请求,本发明实施例为UE请求VDC资源的情况预先设定独立的preamble集,该preamble集中包含一个或者多个专用于VDC资源请求的preamble,在UE需要请求VDC资源发送车辆服务信息时,UE从preamble集中选择一个preamble,向基站发送该preamble,具体的,在UE需要请求VDC资源发送车辆服务信息时,UE的媒体介入控制层(MAC,Media Access Control)从preamble集中选择一个preamble并发送给该UE的物理层(即PHY层),UE的PHY层在最近的下一个子帧向基站发送该preamble。
本发明实施例中,UE请求VDC资源主要用于发送第三类车辆服务信息,当然,UE也可以请求VDC资源发送其它车辆服务信息。
可选的,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该车辆的行驶信息(例如车速信息、刹车信息、转弯信息等),可选的,UE可以使用自身配备的定位模块(例如GPS模块)获得该UE所在车辆的地理位置信息、行车方向等,UE根据获得的车辆的地理位置信息、行车方向、行驶信息等,生成一个或者多个第三类车辆服务信息,当UE每生成一个第三类车辆服务信息时,向基站请求VDC资源发送生成的第三类车辆服务信息,在本发明实施例中,UE向基站发送预定的preamble。需要说明的是,本发明实施例中的第三类车辆服务信息的生成具体可以参照现有的第三类车辆服务信息的生成方式实现,此处不再赘述。
404、接收来自基站的接入应答消息;
其中,上述接入应答消息包括:上述基站为该UE分配的上行授权值。
本发明实施例中,当基站接收到步骤403中UE发送的preamble,发现该preamble为UE请求VDC资源专用的preamble时,基站为该UE分配足够的上行授权值(即UL grant)。通常地理位置信息的字节数为10-20字节,而VDC资源状态列表与VDC资源的个数有关,本发明实施例中,基站有两种方式为UE分配UL grant:第一种按照最大字节数为UE分配UL grant。第二种使用preamble来指示UE请求发送的字节数,基站根据接收到的preamble为UE分配一个最接近的大于或等于该UE请求发送的字节数的UL grant,可选的,基站将preamble进行分类,比如分为3类:第一类preamble,对应请求发送的字节数小于等于128。第二类preamble,对应请求发送的字节数大于128且小于等于256;第3类preamble,对应请求发送的字节数在256至384之间。具体的,对preamble的分类不限于上述三种类型,即,每类preamble的字节数可以根据实际情况进行配置。进一步,基站可以通过广播消息将preamble的分类信息(包括各类preamble所对应的字节数)广播给UE。
可选的,基站为UE分配UL grant后,确定该UE的时间提前量( TA,Timing Advance ),并将该UE的TA携带在上述接入应答消息中,以便该UE根据该TA调整发送时间点,当然,基站也可以不确定该UE的TA,即,上述接入应答消息也可以不携带该UE的TA,则UE使用下行TA或者已有的TA调整发送时间点。
405、UE根据上述接入应答消息中的上行授权值向上述基站发送VDC资源请求消息;
其中,上述VDC资源请求消息包括:上述VDC资源状态列表和该UE的行车信息。
可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和/或行车方向。
本发明实施例中,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该UE所在车辆的车速信息。另外,UE可以使用自身配备的定位模块(例如GPS模块)获得该UE所在车辆的地理位置信息、行车方向等。
可选的,上述VDC资源请求消息还包括:该UE的RNTI,该RNTI为UE在接入蜂窝网络时由基站分配给该UE。
本发明实施例中,UE与所在车辆的控制管理系统连接,UE可以从所在车辆的控制管理系统中获得该UE所在车辆的车速信息。
406、UE接收来自基站的VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为上述UE分配的VDC资源。
407、UE使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明预先监听VDC资源的使用状况并更新本地存储的VDC资源状态列表,在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),通过基站请求VDC资源状态列表中的空闲资源,之后使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面以基站为描述主体,对本发明实施例中的一种VDC资源请求方法进行描述,请参阅图5,本发明实施例中的VDC资源请求方法,包括:
501、接收来自UE的VDC资源请求消息;
其中,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和该UE的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源。
可选的,上述VDC资源请求消息还包括:该UE的RNTI,该RNTI为UE在接入蜂窝网络时由基站分配给该UE。
可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和/或行车方向。
本发明实施例中,VDC是基于长期演进(LTE,Long Term Evolution)系统物理层设计的车辆直通技术,即VDC通信为UE与UE之间的直通通信,它的特点是:基站为每个小区独立配置VDC资源,每个UE(例如车载终端、手持终端等)通过接收基站的广播配置消息或者是通过与基站建立专有的链接可以获得VDC资源的参数信息,例如,该基站覆盖区域范围内的VDC资源的总带宽、每个VDC资源对应的信道的时频资源配置参数,以及UE各自可以使用的VDC资源对应的信道的信道标识(例如信道号)等。UE发送车辆安全消息时只需使用基站分配给该UE的VDC资源即可。另外,UE需要尽可能多地接收VDC资源上的信号,以便尽可能多地接收到周围其他UE发送的车辆安全消息,车辆安全消息例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
在本发明一种实现方式中,上述VDC资源请求消息至少携带上述VDC资源状态列表,则,基站在蜂窝通信资源的频谱的BCH上广播VDC资源参数信息,VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数,上述信道参数包括但不限于:信道的时域资源、信道的频域资源、信道的重发时刻和信道的调制编码方式等。这样所有的在该基站的覆盖区域范围内的UE都可以获取到基站广播的VDC资源参数信息,并根据获取的VDC资源参数信息,开始监听该基站覆盖的区域范围内的VDC资源的使用状况,以更新UE各自在本地维护的VDC资源状态列表。或者,本发明实施例中,基站也可以不广播VDC资源参数信息,当UE进入该基站的覆盖区域范围时, UE向基站请求VDC资源参数信息,基站在接收到UE的请求后向该UE发生VDC资源参数信息,以便UE监听VDC资源的使用状况,并更新该UE本地维护的VDC资源状态列表。
在本发明另一种实现方式中,上述VDC资源请求消息至少携带上述UE的行车信息,则,该UE可以与所在车辆的控制管理系统连接,从该UE所在车辆的控制管理系统中获得该UE所在车辆的车速信息。可选的,该UE使用自身配备的定位模块(例如GPS模块)获得该UE所在车辆的地理位置信息、行车方向等,上述行车信息还包括该UE所在车辆的地理位置信息、行车方向。
本发明实施例中,当UE需要请求VDC资源发送车辆服务信息时,该UE向基站发送上述VDC资源请求消息。
502、根据上述UE的VDC资源请求消息,为该UE分配当前可用的VDC资源;
在一种实现方式中,上述VDC资源请求消息携带上述VDC资源状态列表而不携带上述UE的行车信息,则基站根据VDC资源请求消息中携带的VDC资源状态列表,从VDC资源状态列表选择该UE当前可用的VDC资源并分配给该UE。
在另一种实现方式中,上述VDC资源请求消息携带上述UE的行车信息而不携带上述VDC资源状态列表,且,上述行车信息包括该UE所在车辆的车速信息,则基站根据上述UE的行车信息为该UE分配当前可用的VDC资源。具体的,基站划分若干个车速区间,并建立车速区间与VDC资源之间的对应关系,当基站获取该UE的行车信息后,可以获知该UE所在车辆的车速信息,根据该UE所在车辆的车速信息所在的车速区间,确定VDC资源范围,从确定的VDC资源范围中再进一步为该UE选择该UE当前可用的VDC资源,并分配给该UE。举例说明,假设将VDC资源划分为3类,第一类VDC资源对应于90公里/小时的车速区间,第二类VDC资源对应于60公里/小时(不包含公里/小时)的车速区间,第三类是对应于60公里以下的车速区间。假设该UE所在车辆的车速为/小时,基站从VDC资源请求消息获知该UE所在车辆的车速为/小时,由于/小时在60/小时的车速区间内,基站确定第二类VDC资源,从第二类VDC资源中为该UE选择当前可用的VDC资源。
当然,上述VDC资源请求消息也可以同时携带上述VDC资源状态列表和上述UE的行车信息,则基站结合上述两种实现方式,为该UE分配当前可用的VDC资源。
可选的,基站还与该基站的相邻基站交互各自的VDC资源占用指示信息,上述VDC资源占用指示信息用于指示基站各自覆盖区域内已占用的VDC资源。则进一步,基站结合上述UE的VDC资源请求消息以及相邻基站的VDC资源占用指示信息,为该UE分配当前可用的VDC资源,以避免在为该UE分配VDC资源时,与相邻基站覆盖区域内的VDC资源产生冲突。
503、向上述UE发送VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示上述基站为该UE分配的VDC资源,以便该UE使用该VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
由于车速快的时候,车辆从一个基站覆盖的小区内穿过的时间比较短,如果每个小区都重新分配VDC资源则可能会导致在单位时间内(比如一分钟)的VDC资源切换的次数过多,因此基站会尽可能希望高速的车辆不切换VDC资源,这同时要求相邻的基站对于车速和VDC资源的关系是相同的。因此,可选的,本发明实施例中UE在VDC资源请求消息中携带该UE的行车信息,且该UE的行车信息除了包括该UE所在车辆的车速信息之外,还包括该UE所在车辆的地理位置信息、行车方向,基站在步骤502为该UE分配可用的VDC资源后,进一步根据该UE所在车辆的地理位置信息、行车方向,确定该UE可以使用该VDC资源的使用范围,上述使用范围具体指:可以使用的时间长度,即能够从接收到VDC资源分配指令之后的多长时间使用;或者确定VDC资源需要更换的条件,例如,确定UE所在车辆在到达某个地点之后必须再次申请资源。基站在向该UE发送的VDC资源分配指示消息中携带上述VDC资源的使用范围或VDC资源需要更换的条件,使得该UE在规定时间到达时或者在该UE所在车辆满足VDC资源需要更换的条件(例如该UE所在车辆到达指定地点)时,重新向基站发起VDC资源请求。
可选的,基站使用物理下行共享信道(PDSCH,Physical Downlink Shared Channel)向上述UE发送VDC资源分配指示消息。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明基站在接收到UE的VDC资源请求消息后,根据资源请求消息为该UE分配可用的VDC资源,并通过VDC资源分配指示消息向该UE指示该VDC资源,使得UE根据VDC资源分配指示消息的指示,使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面以基站为描述主体,对本发明实施例中的一种VDC资源请求方法进行进一步描述,本发明实施例中包括UE请求接入的方案,且VDC资源请求消息携带VDC资源状态列表和UE所在车辆的行车信息,当然,在本发明实施例和前述实施例的基础上,VDC资源请求消息也可以只携带VDC资源状态列表和UE所在车辆的行车信息中的一个,请参阅图6,本发明实施例中的VDC资源请求方法,包括:
601、向基站覆盖范围内的UE广播VDC资源参数信息;
其中,上述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
本发明实施例中,基站在蜂窝通信资源的频谱的BCH上,向其覆盖范围内的UE广播VDC资源参数信息,这样所有的在该基站的覆盖区域范围内的UE都可以获取到基站广播的VDC资源参数信息,并根据获取的VDC资源参数信息,开始监听该基站覆盖的区域范围内的VDC资源的使用状况,以更新VDC资源状态列表。
602、基站接收UE的接入前导序列;
由于第三类车辆服务信息具有突发性,因此本发明实施例中,在接入时隙的配置上,将基站覆盖的区域范围内的每个子帧都配置为可以让UE发起接入。这需要基站在广播消息中通知UE,或者在UE鉴权之后,基站使用专用的信令通知该UE可以在所有的子帧发起接入。同时基站侧也需要保证自己随时准备接收来自UE的接入前导序列(即preamble)。由于基站同时提供蜂窝网络和VDC的服务,为了使得基站能够快速处理来自UE的VDC资源请求,本发明实施例为UE请求VDC资源的情况预先设定独立的preamble集,该preamble集中包含一个或者多个专用于VDC资源请求的preamble,在UE需要请求VDC资源发送车辆服务信息时,UE从preamble集中选择一个preamble,向基站发送该preamble,具体的,在UE需要请求VDC资源发送车辆服务信息时,UE的MAC从preamble集中选择一个preamble并发送给该UE的物理层(即PHY层),UE的PHY层在最近的下一个子帧向基站发送该preamble。
603、当确定接收到的接入前导序列为预定的接入前导序列时,为上述UE分配上行授权值;
本发明实施例中,当基站确定接收到的preamble为预定的preamble,例如为上述preamble集中的一个preamble,基站为该UE分配上行授权值(即UL grant)。
本发明实施例中,为了保证UE能够快速返回VDC资源请求消息,基站在确定接收到的preamble为预定的preamble时,为上述UE分配足够的UL grant。
通常地理位置信息的字节数为10-20字节,而VDC资源状态列表与VDC资源的个数有关,本发明实施例中,基站有两种方式为UE分配UL grant:第一种按照最大字节数为UE分配UL grant。第二种使用preamble来指示UE请求发送的字节数,基站根据接收到的preamble为UE分配一个最接近的大于或等于该UE请求发送的字节数的UL grant,可选的,基站将preamble进行分类,比如分为3类:第一类preamble,对应请求发送的字节数小于等于128。第二类preamble,对应请求发送的字节数大于128且小于等于256;第3类preamble,对应请求发送的字节数在256至384之间。具体的,对preamble的分类不限于上述三种类型,即,每类preamble的字节数可以根据实际情况进行配置。进一步,基站可以通过广播消息将preamble的分类信息(包括各类preamble所对应的字节数)广播给UE。
604、确定上述UE的TA;
其中,基站确定UE的TA可以参照现有方案实现,此处不再赘述。
605、向上述UE发送接入应答消息;
其中,上述接入应答消息包括:上述UE的TA以及基站为上述UE分配的上行授权值。以便UE根据上述接入应答消息中的TA调整发送时间点后,根据上述接入应答消息中的上行授权值向上述基站发送VDC资源请求消息。
606、接收来自UE的VDC资源请求消息;
其中,步骤606与图5所示实施例中步骤501类似,步骤606的具体实现方式可以参照步骤501中的描述,此处不再赘述。
607、根据上述UE的VDC资源请求消息,为该UE分配当前可用的VDC资源;
基站根据上述UE的VDC资源请求消息中携带的VDC资源状态列表和该UE的行车信息,为该UE分配当前可用的VDC资源。
可选的,基站还与该基站的相邻基站交互各自的VDC资源占用指示信息,上述VDC资源占用指示信息用于指示基站各自覆盖区域内已占用的VDC资源。则进一步,基站结合上述UE的VDC资源请求消息以及相邻基站的VDC资源占用指示信息,为该UE分配当前可用的VDC资源,以避免在为该UE分配VDC资源时,与相邻基站覆盖区域内的VDC资源产生冲突。
可选的,基站与相邻基站交互各自的VDC资源占用信息的时候,还会携带每个VDC资源被使用时的对应的车的行车方向信息,以便接收到VDC资源占用信息的基站能够判断在接到VDC资源占用信息后一段时间内这个被占用的VDC资源是否能在本基站范围内被使用而不发送资源冲突。例如:基站a向基站b发送的VDC资源占用信息中指示 VDC资源1 被占用,行车方向为远离基站b,则基站b可以在收到VDC资源占用信息后一段时间之后(比如收到VDC资源占用信息后的1秒),能给从远离基站a的方向且刚进入基站b的某个UE分配这个VDC1资源。
608、向上述UE发送VDC资源分配指示消息;
其中,上述VDC资源分配指示消息中指示上述基站为该UE分配的VDC资源,以便该UE使用该VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
由于车速快的时候,车辆从一个基站覆盖的小区内穿过的时间比较短,如果每个小区都重新分配VDC资源则可能会导致在单位时间内(比如一分钟)的VDC资源切换的次数过多,因此基站会尽可能希望高速的车辆不切换VDC资源。因此,可选的,本发明实施例中UE在VDC资源请求消息中携带该UE的行车信息,且该UE的行车信息除了包括该UE所在车辆的车速信息之外,还包括该UE所在车辆的地理位置信息、行车方向,基站在步骤607为该UE分配可用的VDC资源后,进一步根据该UE所在车辆的地理位置信息、行车方向,确定该UE可以使用该VDC资源的使用范围,上述使用范围具体指:可以使用的时间长度,即能够从接收到VDC资源分配指令之后的多长时间使用;或者确定VDC资源需要更换的条件,例如,确定UE所在车辆在到达某个地点之后必须再次申请资源。基站在向该UE发送的VDC资源分配指示消息中携带上述VDC资源的使用范围或VDC资源需要更换的条件,使得该UE在规定时间到达时或者在该UE所在车辆满足VDC资源需要更换的条件(例如该UE所在车辆到达指定地点)时,重新向基站发起VDC资源请求。
可选的,基站使用PDSCH向上述UE发送VDC资源分配指示消息。
需要说明的是,本发明实施例是以VDC资源请求消息携带VDC资源状态列表和UE所在车辆的行车信息为例进行说明,若VDC资源请求消息不携带VDC资源状态列表,则本发明实施例中的步骤601也可以省略。另外,本发明实施例中 604也可以省略,即基站也可以不确定该UE的TA,则在步骤605中发送的接入应答消息不携带该UE的TA,UE可以使用下行TA或者已有的TA调整发送时间点。
需要说明的是,本发明实施例中的UE可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。
从本发明上述技术方案可知,本发明基站在接收到UE的VDC资源请求消息后,根据资源请求消息为该UE分配可用的VDC资源,并通过VDC资源分配指示消息向该UE指示该VDC资源,使得UE根据VDC资源分配指示消息的指示,使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
本发明实施例还提供一种用户设备,如图7所示,本发明实施例中的用户设备700包括:
发送单元701,用于在需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和用户设备700的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源,可选的,上述行车信息包括如下信息中的一个或多个:用户设备700所在车辆的车速信息、用户设备700所在车辆的地理位置信息和行车方向;可选的,上述VDC资源请求消息还包括:该UE的RNTI,该RNTI为UE在接入蜂窝网络时由基站分配给该UE。
接收单元702,用于接收来自上述基站的VDC资源分配指示消息,其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为用户设备700分配的VDC资源;
发送单元702还用于使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
在一种应用场景中,上述VDC资源请求消息包括:上述VDC资源状态列表;则可选的,在图7所示实施例的基础上,如图8所示,用户设备800还包括:监听单元703,用于监听VDC资源的使用状况;更新单元704,用于当监听单元703监听到VDC资源的使用状况发生变化时,更新本地存储的VDC资源状态列表。
可选的,监听单元703包括:获取单元 ,用于获取基站广播的VDC资源参数信息,其中,上述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;监听子单元,用于根据上述获取单元获取的上述VDC资源参数信息,监听VDC资源的使用状况。
可选的,发送单元701还用于:在向基站发送VDC资源请求消息之前,向上述基站发送预定的接入前导序列,以便上述基站根据上述预定的接入前导序列获知上述用户设备当前需要申请VDC资源,并为上述用户设备分配上行授权值;接收单元702还用于:接收来自上述基站的接入应答消息,其中,上述接入应答消息包括:上述基站为上述用户设备分配的上行授权值;发送单元701具体用于:根据上述接入应答消息中的上行授权值向上述基站发送VDC资源请求消息。可选的,基站为UE分配上行授权值后,确定该UE的 TA,并将该UE的TA携带在上述接入应答消息中,以便该UE根据该TA调整发送时间点。
需要说明的是,本发明实施例中的VDC是基于LTE系统物理层设计的车辆直通技术,即VDC通信为UE与UE之间的直通通信,它的特点是:基站为每个小区独立配置VDC资源,每个用户设备(例如车载终端、手持终端等)通过接收基站的广播配置消息或者是通过与基站建立专有的链接可以获得VDC资源的参数信息,例如, 该基站覆盖区域范围内的VDC资源的总带宽、每个VDC资源对应的信道的时频资源配置参数,以及用户设备各自可以使用的VDC资源对应的信道的信道标识(例如信道号)等。用户设备发送车辆安全消息时只需使用基站分配给该用户设备的VDC资源即可。另外,用户设备需要尽可能多地接收VDC资源上的信号,以便尽可能多地接收到周围其他用户设备发送的车辆安全消息,车辆安全消息例如包括:某车辆的紧急刹车信息、在车辆转弯时提示对面有来车的信息等,车辆安全消息主要用于避免车辆碰撞。
需要说明的是,本发明实施例中的用户设备可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。本发明实施例中的用户设备可以如上述方法实施例中的用户设备,可以用于实现上述方法实施例中的全部技术方案,其各个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过程可参照上述实施例中的相关描述,此处不再赘述。
从本发明上述技术方案可知,本发明在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),向基站发送VDC资源请求消息,使基站根据该VDC资源请求消息为用户设备分配可用的VDC资源,之后用户设备使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
本发明实施例还提供另一种用户设备,下面对本发明实施例中的用户设备进行描述,请参阅图9,本发明实施例中的用户设备900包括:一个或一个以上计算机可读存储介质的存储器901、输入单元902、显示单元903、一个或者一个以上处理核心的处理器904、以及电源905等部件。本领域技术人员可以理解,图9中示出的用户设备结构并不构成对用户设备的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。其中:
存储器901可用于存储软件程序以及模块,处理器904通过运行存储在存储器901的软件程序以及模块,从而执行各种功能应用以及数据处理。存储器901可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据用户设备900的使用所创建的数据(比如音频数据、车辆行驶信息等)等。此外,存储器901可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地,存储器901还可以包括存储器控制器,以提供处理器904和输入单元902对存储器901的访问。
输入单元902可用于接收输入的数字或字符信息,以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入,具体的,输入单元902可表现为接收机。可选的,输入单元902包括触敏表面9021以及其他输入设备9022。触敏表面9021,也称为触摸显示屏或者触控板,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触敏表面9021上或在触敏表面9021附近的操作),并根据预先设定的程式驱动相应的连接装置。可选的,触敏表面9021可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器904,并能接收处理器904发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触敏表面9021。除了触敏表面9021,输入单元902还可以包括其他输入设备9022。具体地,其他输入设备9022可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元903可用于显示由用户输入的信息或提供给用户的信息以及移动终端900的各种图形用户接口,这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元903可包括显示面板9031,可选的,可以采用液晶显示器(LCD,Liquid Crystal Display)、有机发光二极管(OLED,Organic Light-Emitting Diode)等形式来配置显示面板9031。进一步的,触敏表面9021可覆盖显示面板9031,当触敏表面9021检测到在其上或附近的触摸操作后,传送给处理器904以确定触摸事件的类型,随后处理器904根据触摸事件的类型在显示面板9031上提供相应的视觉输出。虽然在图9中,触敏表面9021与显示面板9031是作为两个独立的部件来实现输入和输入功能,但是在某些实施例中,可以将触敏表面9021与显示面板9031集成而实现输入和输出功能。
处理器904是用户设备900的控制中心,利用各种接口和线路连接整个手机的各个部分,通过运行或执行存储在存储器901内的软件程序和/或模块,以及调用存储在存储器901内的数据,执行用户设备900的各种功能和处理数据,从而对用户设备900进行整体监控。可选的,处理器904可包括一个或多个处理核心;优选的,处理器904可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。当然,上述调制解调处理器也可以不集成到处理器904中。
用户设备900还包括给各个部件供电的电源905(比如电池),优选的,电源可以通过电源管理系统与处理器904逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源905还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管未示出,用户设备900还可以包括发射机(例如射频(RF,Radio Frequency)电路)、传感器、音频电路、无线保真(WiFi,wireless fidelity)模块、摄像头、蓝牙模块等,在此不再赘述。具体在本实施例中,用户设备900还包括一个或者一个以上程序存储于存储器901中,且经配置以由一个或者一个以上处理器904执行述一个或者一个以上程序包含用于进行以下操作的指令:
在用户设备900需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息,其中,上述VDC资源请求消息包括如下信息中的至少一个:上述VDC资源状态列表和用户设备900的行车信息,其中,上述VDC资源状态列表中指示可用的VDC资源,可选的,上述行车信息包括如下信息中的一个或多个:用户设备700所在车辆的车速信息、用户设备700所在车辆的地理位置信息和行车方向;
接收来自基站的VDC资源分配指示消息,其中,上述VDC资源分配指示消息中指示:上述基站根据上述VDC资源请求消息为用户设备600分配的VDC资源;
使用上述VDC资源分配指示消息指示的VDC资源发送上述车辆服务信息。
假设上述为第一种可能的实施方式,则在第一种可能的实施方式作为基础而提供的第二种可能的实施方式中,上述VDC资源请求消息包括:上述VDC资源状态列表;处理器904还执行如下指令:
监听VDC资源的使用状况;
在监听到VDC资源的使用状况发生变化时,更新存储器901存储的VDC资源状态列表。
在第二种可能的实施方式作为基础而提供的第三种可能的实施方式中,上述监听VDC资源的使用状况,包括:获取基站广播的VDC资源参数信息,其中,上述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;根据获取的上述VDC资源参数信息,监听VDC资源的使用状况。
在第一种可能的实施方式或者第二种可能的实施方式或者第三种可能的实施方式作为基础而提供的第四种可能的实施方式中,上述向基站发送VDC资源请求消息,之前包括:向上述基站发送预定的接入前导序列,以便上述基站根据上述预定的接入前导序列获知用户设备900当前需要申请VDC资源,并为用户设备900分配上行授权值;接收来自上述基站的接入应答消息,其中,上述接入应答消息包括:上述基站为用户设备900分配的上行授权值;
上述向基站发送VDC资源请求消息,具体为:根据上述接入应答消息中的上行授权值向上述基站发送VDC资源请求消息。
需要说明的是,本发明实施例中的用户设备可以为车载终端、手持终端或其它能够与车辆的控制管理系统连接的终端,此处不作限定。本发明实施例中的用户设备可以如上述方法实施例中的用户设备,可以用于实现上述方法实施例中的全部技术方案,其各个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过程可参照上述实施例中的相关描述,此处不再赘述。
从本发明上述技术方案可知,本发明在需要发送车辆服务信息时(例如需要发送传输时延要求高的第三类车辆服务信息时),向基站发送VDC资源请求消息,使基站根据该VDC资源请求消息为用户设备分配可用的VDC资源,之后用户设备使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
本发明实施例还提供一种基站,如图10所示,本发明实施例中的基站1000,包括:第一接收单元1001,用于接收来自用户设备的VDC资源请求消息,其中,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和上述用户设备的行车信息,上述VDC资源状态列表中指示可用的VDC资源,可选的,上述行车信息包括如下信息中的一个或多个:用户设备700所在车辆的车速信息、用户设备700所在车辆的地理位置信息和行车方向;
第一分配单元1002,用于根据第一接收单元1001接收的上述用户设备的VDC资源请求消息,为上述用户设备分配当前可用的VDC资源;
第一发送单元1003,用于向上述用户设备发送VDC资源分配指示消息,其中,上述VDC资源分配指示消息中指示第一分配单元1002为上述用户设备分配的VDC资源,以便上述用户设备使用上述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
可选的,在图10所示实施例的基础上,上述VDC资源请求消息包括:上述VDC资源状态列表;本发明实施例中的基站还包括:广播单元,用于向上述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,上述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
可选的,上述VDC资源请求消息包括:上述用户设备的行车信息,且该行车信息包括该用户设备所在车辆的车速信息;第一分配单元1002具体用于:根据上述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围;从确定的上述VDC资源范围中,为所述用户设备分配当前可用的VDC资源,其中,车速区间与VDC资源范围存在对应关系。
可选的,本发明实施例中的基站还包括:第二接收单元,用于接收来自相邻基站的VDC资源占用指示信息,上述相邻基站的VDC资源占用指示信息用于指示上述相邻基站的覆盖区域内已占用的VDC资源;第一分配单元1002具体用于:根据上述用户设备的VDC资源请求消息,以及上述相邻基站的VDC资源占用指示信息,为上述用户设备分配当前可用的VDC资源。
可选的,本发明实施例中的基站还包括:第三接收单元,用于接收上述用户设备的接入前导序列;第二分配单元,用于当确定上述接入前导序列为预定的接入前导序列时,为上述用户设备分配上行授权值;确定单元,用于确定上述用户设备的时间提前量;第二发送单元,用于向上述用户设备发送接入应答消息,其中,上述接入应答消息包括:上述用户设备的时间提前量以及上述基站为上述用户设备分配的上行授权值。
可选的,上述用户设备的接入前导序列还用于指示上述用户设备请求发送的字节数;上述第二分配单元具体用于:根据上述第三接收单元接收的上述用户设备的接入前导序列,为上述用户设备分配大于或等于上述用户设备请求发送的字节数的上行授权值。
需要说明的是,本发明实施例中的基站可以如上述方法实施例中的基站,可以用于实现上述方法实施例中的全部技术方案,其各个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过程可参照上述实施例中的相关描述,此处不再赘述。
从本发明上述技术方案可知,本发明基站在接收到用户设备的VDC资源请求消息后,根据资源请求消息为该用户设备分配可用的VDC资源,并通过VDC资源分配指示消息向该用户设备指示该VDC资源,使得用户设备根据VDC资源分配指示消息的指示,使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
下面对本发明实施中的另一种基站进行描述,请参阅图11,本发明实施例中的基站1100包括:
输入装置1101(例如接收机)、输出装置1102(例如发射机)、存储器1103以及处理器1104(基站1100的处理器1104的数量可以是一个或者多个,图11一个处理器为例)。在本发明的一些实施例中,输入装置1101、输出装置1102、存储器1103以及处理器1104可以通过总线或其它方式连接,如图11所示是以通过总线连接为例。其中,存储器1103中用来储存从输入装置1101输入的数据,且还可以储存处理器1104处理数据的必要文件等信息;输入装置1101和输出装置1102可以包括基站1100与其他设备通信的端口,在本实施例中输入装置1101和输出装置1102中与其他设备通信的端口可以为天线和/或线缆。
其中,处理器1104执行如下步骤:
接收来自UE的VDC资源请求消息,其中,上述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和上述UE的行车信息,上述VDC资源状态列表中指示可用的VDC资源,可选的,上述行车信息包括如下信息中的一个或多个:该UE所在车辆的车速信息、该UE所在车辆的地理位置信息和行车方向;
根据上述UE的VDC资源请求消息,为该UE分配当前可用的VDC资源;
向上述UE发送VDC资源分配指示消息,其中,上述VDC资源分配指示消息中指示处理器1104为该UE分配的VDC资源,以便该UE使用该VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
需要说明的是,本发明实施例中的基站可以如上述方法实施例中的基站,可以用于实现上述方法实施例中的全部技术方案,其各个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过程可参照上述实施例中的相关描述,此处不再赘述。
从本发明上述技术方案可知,本发明基站在接收到用户设备的VDC资源请求消息后,根据资源请求消息为该用户设备分配可用的VDC资源,并通过VDC资源分配指示消息向该用户设备指示该VDC资源,使得用户设备根据VDC资源分配指示消息的指示,使用基站分配的VDC资源发送车辆服务信息,在整个过程,用户设备与基站之间不需要复杂的链路建立过程,因此,有效减小了车辆服务信息的传输时延,并且,通过实验研究数据表明,通过本发明传输车辆服务信息,传输时延能够保证在100毫秒以内,即能够满足第三类车辆服务信息的传输时延要求。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
需要说明的是,对于前述的各方法实施例,为了简便描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,因为依据本发明,某些步骤可以采用其它顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定都是本发明所必须的。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其它实施例的相关描述。
以上为对本发明所提供的一种VDC资源请求方法、用户设备和基站的描述,对于本领域的一般技术人员,依据本发明实施例的思想,在具体实施方式及应用范围上均会有改变之处,综上,本说明书内容不应理解为对本发明的限制。

Claims (30)

  1. 一种车辆直接通讯VDC资源请求方法,其特征在于,包括:
    在所述用户设备需要请求VDC资源发送车辆服务信息时,所述用户设备向基站发送VDC资源请求消息,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    所述用户设备接收来自所述基站的VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示:所述基站根据所述VDC资源请求消息为所述用户设备分配的VDC资源;
    所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送所述车辆服务信息。
  2. 根据权利要求1所述的方法,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述方法还包括:
    所述用户设备监听VDC资源的使用状况;
    在监听到VDC资源的使用状况发生变化时,所述用户设备更新本地存储的VDC资源状态列表。
  3. 根据权利要求2所述的方法,其特征在于,所述用户设备监听车辆直接通讯VDC资源的使用状况,包括:
    获取基站广播的VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;
    根据获取的所述VDC资源参数信息,监听VDC资源的使用状况。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,所述用户设备向基站发送VDC资源请求消息,之前包括:
    所述用户设备向所述基站发送预定的接入前导序列,以便所述基站根据所述预定的接入前导序列获知所述用户设备当前需要申请VDC资源,并为所述用户设备分配上行授权值;
    接收来自所述基站的接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值;
    所述用户设备向基站发送VDC资源请求消息,具体为:
    所述用户设备根据所述接入应答消息中的上行授权值向所述基站发送VDC资源请求消息。
  5. 一种车辆直接通讯VDC资源请求方法,其特征在于,包括:
    接收来自用户设备的VDC资源请求消息,其中,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源;
    向所述用户设备发送VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示所述基站为所述用户设备分配的VDC资源,以便所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
  6. 根据权利要求5所述的方法,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述接收来自用户设备的VDC资源请求消息,之前还包括:
    向所述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
  7. 根据权利要求5所述的方法,其特征在于,所述VDC资源请求消息包括:所述用户设备的行车信息,所述行车信息包括所述用户设备所在车辆的车速信息;
    所述根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源,包括:
    根据所述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围,其中,车速区间与VDC资源范围存在对应关系;
    从确定的所述VDC资源范围中,为所述用户设备分配当前可用的VDC资源。
  8. 根据权利要去5至7任一项所述的方法,其特征在于,所述方法还包括:
    接收来自相邻基站的VDC资源占用指示信息,所述相邻基站的VDC资源占用指示信息用于指示所述相邻基站的覆盖区域内已占用的VDC资源;
    所述根据所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源,包括:
    根据所述用户设备的VDC资源请求消息,以及所述相邻基站的VDC资源占用指示信息,为所述用户设备分配当前可用的VDC资源。
  9. 根据权利要求5至7任一项所述的方法,其特征在于,所述接收来自用户设备的车辆直接通讯VDC资源请求消息之前,包括:
    接收所述用户设备的接入前导序列;
    当确定所述接入前导序列为预定的接入前导序列时,为所述用户设备分配上行授权值;
    向所述用户设备发送接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值。
  10. 根据权利要求9所述的方法,其特征在于,所述用户设备的接入前导序列还用于指示所述用户设备请求发送的字节数;
    所述为所述用户设备分配上行授权值,包括:根据所述用户设备的接入前导序列,为所述用户设备分配大于或等于所述用户设备请求发送的字节数的上行授权值。
  11. 一种用户设备,其特征在于,包括:
    发送单元,用于在需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    接收单元,用于接收来自所述基站的VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示:所述基站根据所述VDC资源请求消息为所述用户设备分配的VDC资源;
    所述发送单元还用于使用所述VDC资源分配指示消息指示的VDC资源发送所述车辆服务信息。
  12. 根据权利要求11所述的用户设备,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述用户设备还包括:
    监听单元,用于监听车辆直接通讯VDC资源的使用状况;
    更新单元,用于当所述监听单元监听到VDC资源的使用状况发生变化时,更新本地存储的VDC资源状态列表。
  13. 根据权利要求12所述的用户设备,其特征在于,所述监听单元包括:
    获取单元,用于获取基站广播的VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;
    监听子单元,用于根据所述获取单元获取的所述VDC资源参数信息,监听VDC资源的使用状况。
  14. 根据权利要求11至13任一项所述的用户设备,其特征在于,
    所述发送单元还用于:在向基站发送VDC资源请求消息之前,向所述基站发送预定的接入前导序列,以便所述基站根据所述预定的接入前导序列获知所述用户设备当前需要申请VDC资源,并为所述用户设备分配上行授权值;
    所述接收单元还用于:接收来自所述基站的接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值;
    所述发送单元具体用于:根据所述接入应答消息中的上行授权值向所述基站发送VDC资源请求消息。
  15. 一种基站,其特征在于, 包括:
    第一接收单元,用于接收来自用户设备的车辆直接通讯VDC资源请求消息,其中,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    第一分配单元,用于根据所述第一接收单元接收的所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源;
    第一发送单元,用于向所述用户设备发送VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示所述第一分配单元为所述用户设备分配的VDC资源,以便所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
  16. 根据权利要求15所述的基站,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述基站还包括:
    广播单元,用于向所述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
  17. 根据权利要求15所述的方法,其特征在于,所述VDC资源请求消息包括:所述用户设备的行车信息,所述行车信息包括所述用户设备所在车辆的车速信息;
    所述第一分配单元具体用于:根据所述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围;从确定的所述VDC资源范围中,为所述用户设备分配当前可用的VDC资源,其中,车速区间与VDC资源范围存在对应关系。
  18. 根据权利要求15至17任一项所述的基站,其特征在于,
    所述基站还包括:
    第二接收单元,用于接收来自相邻基站的VDC资源占用指示信息,所述相邻基站的VDC资源占用指示信息用于指示所述相邻基站的覆盖区域内已占用的VDC资源;
    所述第一分配单元具体用于:根据所述用户设备的VDC资源请求消息,以及所述相邻基站的VDC资源占用指示信息,为所述用户设备分配当前可用的VDC资源。
  19. 根据权利要求15至17任一项所述的基站,其特征在于,
    所述基站还包括:
    第三接收单元,用于接收所述用户设备的接入前导序列;
    第二分配单元,用于当确定所述接入前导序列为预定的接入前导序列时,为所述用户设备分配上行授权值;
    确定单元,用于确定所述用户设备的时间提前量;
    第二发送单元,用于向所述用户设备发送接入应答消息,其中,所述接入应答消息包括:所述用户设备的时间提前量以及所述基站为所述用户设备分配的上行授权值。
  20. 根据权利要求19所述的基站,其特征在于,所述用户设备的接入前导序列还用于指示所述用户设备请求发送的字节数;
    所述第二分配单元具体用于:根据所述第三接收单元接收的所述用户设备的接入前导序列,为所述用户设备分配大于或等于所述用户设备请求发送的字节数的上行授权值。
  21. 一种用户设备,其特征在于,包括:发射机,接收机和处理器;
    所述处理器用于:控制所述发射机在需要请求VDC资源发送车辆服务信息时,向基站发送VDC资源请求消息,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    所述接收机用于:接收来自所述基站的VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示:所述基站根据所述VDC资源请求消息为所述用户设备分配的VDC资源;
    所述处理器还用于:控制所述发射机使用所述VDC资源分配指示消息指示的VDC资源发送所述车辆服务信息。
  22. 根据权利要求21所述的用户设备,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述处理器还用于:监听车辆直接通讯VDC资源的使用状况;当监听到VDC资源的使用状况发生变化时,更新本地存储的VDC资源状态列表。
  23. 根据权利要求22所述的用户设备,其特征在于,
    所述处理器具体用于:获取基站广播的VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数;根据所述VDC资源参数信息,监听VDC资源的使用状况。
  24. 根据权利要求21至23任一项所述的用户设备,其特征在于,
    所述处理器还用于:在向基站发送VDC资源请求消息之前,控制所述发射机向所述基站发送预定的接入前导序列,以便所述基站根据所述预定的接入前导序列获知所述用户设备当前需要申请VDC资源,并为所述用户设备分配上行授权值;
    所述接收机还用于:接收来自所述基站的接入应答消息,其中,所述接入应答消息包括:所述基站为所述用户设备分配的上行授权值;
    所述处理器具体用于:根据所述接入应答消息中的上行授权值,控制所述发射机向所述基站发送VDC资源请求消息。
  25. 一种基站,其特征在于,包括:发射机、接收机和处理器;
    所述接收机用于接收来自用户设备的车辆直接通讯VDC资源请求消息,其中,所述VDC资源请求消息包括如下信息中的至少一个:VDC资源状态列表和所述用户设备的行车信息,其中,所述VDC资源状态列表中指示可用的VDC资源;
    所述处理器用于:根据所述接收机接收到的所述用户设备的VDC资源请求消息,为所述用户设备分配当前可用的VDC资源;
    所述处理器还用于,控制所述发射机向所述用户设备发送VDC资源分配指示消息,其中,所述VDC资源分配指示消息中指示所述处理器为所述用户设备分配的VDC资源,以便所述用户设备使用所述VDC资源分配指示消息指示的VDC资源发送车辆服务信息。
  26. 根据权利要求25所述的基站,其特征在于,所述VDC资源请求消息包括:所述VDC资源状态列表;
    所述处理器还用于向所述基站覆盖范围内的用户设备广播VDC资源参数信息,其中,所述VDC资源参数信息包括:VDC资源的带宽、VDC资源的信道划分和信道参数。
  27. 根据权利要求25所述的基站,其特征在于,所述VDC资源请求消息包括:所述用户设备的行车信息,所述行车信息包括所述用户设备所在车辆的车速信息;
    所述处理器具体用于:根据所述用户设备所在车辆的车速信息所在的车速区间,确定VDC资源范围;从确定的所述VDC资源范围中,为所述用户设备分配当前可用的VDC资源,其中,车速区间与VDC资源范围存在对应关系。
  28. 根据权利要求25至27任一项所述的基站,其特征在于,
    所述接收机还用于:接收来自相邻基站的VDC资源占用指示信息,所述相邻基站的VDC资源占用指示信息用于指示所述相邻基站的覆盖区域内已占用的VDC资源;
    所述处理器具体用于:根据所述用户设备的VDC资源请求消息,以及所述相邻基站的VDC资源占用指示信息,为所述用户设备分配当前可用的VDC资源。
  29. 根据权利要求25至27任一项所述的基站,其特征在于,
    所述接收机还用于:接收所述用户设备的接入前导序列;
    所述处理器还用于:当确定所述接入前导序列为预定的接入前导序列时,为所述用户设备分配上行授权值;确定所述用户设备的时间提前量;控制所述发射机向所述用户设备发送接入应答消息,其中,所述接入应答消息包括:所述用户设备的时间提前量以及所述基站为所述用户设备分配的上行授权值。
  30. 根据权利要求29所述的基站,其特征在于,所述用户设备的接入前导序列还用于指示所述用户设备请求发送的字节数;
    所述处理器具体用于:根据所述用户设备的接入前导序列,为所述用户设备分配大于或等于所述用户设备请求发送的字节数的上行授权值。
PCT/CN2015/078409 2014-09-17 2015-05-06 一种vdc资源请求方法、用户设备和基站 WO2016041359A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15841284.1A EP3182780B1 (en) 2014-09-17 2015-05-06 Vdc resource request method, user equipment, base station, and computer-readable storage medium
US15/460,484 US20170188355A1 (en) 2014-09-17 2017-03-16 VDC Resource Request Method, User Equipment, and Base Station

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410474977.7 2014-09-17
CN201410474977.7A CN105491667B (zh) 2014-09-17 2014-09-17 一种vdc资源请求方法、用户设备和基站

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/460,484 Continuation US20170188355A1 (en) 2014-09-17 2017-03-16 VDC Resource Request Method, User Equipment, and Base Station

Publications (1)

Publication Number Publication Date
WO2016041359A1 true WO2016041359A1 (zh) 2016-03-24

Family

ID=55532520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/078409 WO2016041359A1 (zh) 2014-09-17 2015-05-06 一种vdc资源请求方法、用户设备和基站

Country Status (4)

Country Link
US (1) US20170188355A1 (zh)
EP (1) EP3182780B1 (zh)
CN (1) CN105491667B (zh)
WO (1) WO2016041359A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017193258A1 (en) * 2016-05-09 2017-11-16 Nokia Solutions And Networks Oy Enhancing communication services
EP3468294A4 (en) * 2016-05-25 2019-04-17 ZTE Corporation AD HOC NETWORK METHOD BASED ON VEHICLE MOUNTED TERMINAL, VEHICLE MOUNTED TERMINAL, AND STORAGE MEDIUM

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108781385B (zh) * 2016-06-03 2021-03-30 华为技术有限公司 V2x消息通信方法及装置
CN107734480B (zh) * 2016-08-12 2020-01-17 普天信息技术有限公司 一种切换方法和系统
CN107734704A (zh) * 2016-08-12 2018-02-23 展讯通信(上海)有限公司 用于v2x的资源配置和数据传输方法及装置、基站、终端
CN108632779B (zh) * 2017-03-17 2023-03-24 中兴通讯股份有限公司 资源分配方法及装置、资源预留方法及装置
CN108633001B (zh) 2017-03-24 2019-12-13 电信科学技术研究院 一种资源分配方法及设备
US11019554B2 (en) * 2017-04-14 2021-05-25 Hewlett Packard Enterprise Development Lp Wireless channel access restrictions
CN109257766A (zh) * 2017-07-13 2019-01-22 中国移动通信有限公司研究院 区域资源的上报方法、区域参数的配置方法、终端及基站
EP3462793A1 (en) * 2017-09-29 2019-04-03 Intel IP Corporation Method and arrangement for allocating radio resources
CN109729597B (zh) * 2017-10-31 2022-09-30 中国电信股份有限公司 上行资源调度方法、系统以及基站和用户终端
US10578720B2 (en) 2018-04-05 2020-03-03 Luminar Technologies, Inc. Lidar system with a polygon mirror and a noise-reducing feature

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101636933A (zh) * 2007-03-20 2010-01-27 富士通株式会社 交通系统中的无线通信方法以及无线基站和无线终端
CN101990311A (zh) * 2010-12-10 2011-03-23 中国海洋大学 无线移动宽带系统基于虚拟前导码的随机接入方法
WO2013111282A1 (ja) * 2012-01-25 2013-08-01 トヨタ自動車株式会社 車両遠隔操作情報提供装置、車載遠隔操作情報取得装置及びこれらの装置を備えた車両遠隔操作システム
CN103379581A (zh) * 2012-04-24 2013-10-30 华为技术有限公司 数据传输方法、用户设备、基站和系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6594557B1 (en) * 1999-09-27 2003-07-15 Visteon Global Technologies, Inc. Utilizing intelligent software agents in a mobile vehicle
US6366782B1 (en) * 1999-10-08 2002-04-02 Motorola, Inc. Method and apparatus for allowing a user of a display-based terminal to communicate with communication units in a communication system
US6907023B2 (en) * 2000-08-14 2005-06-14 Vesuvius, Inc. Communique system with dynamic bandwidth allocation in cellular communication networks
US8644225B2 (en) * 2007-11-19 2014-02-04 Telcordia Technologies, Inc. Method for determining transmission channels for a LPG based vehicle communication network
JP4512143B2 (ja) * 2008-02-21 2010-07-28 株式会社トヨタIt開発センター 移動体無線通信システムおよび無線通信方法
JP5741390B2 (ja) * 2011-11-11 2015-07-01 トヨタ自動車株式会社 周波数選択方法およびコグニティブ無線システム
JP5880302B2 (ja) * 2012-06-15 2016-03-09 トヨタ自動車株式会社 路車間通信システム、管理サーバ、および車両
WO2014012244A1 (en) * 2012-07-20 2014-01-23 Renesas Mobile Corporation Fast access in v2v communication services by dynamic resources allocation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101636933A (zh) * 2007-03-20 2010-01-27 富士通株式会社 交通系统中的无线通信方法以及无线基站和无线终端
CN101990311A (zh) * 2010-12-10 2011-03-23 中国海洋大学 无线移动宽带系统基于虚拟前导码的随机接入方法
WO2013111282A1 (ja) * 2012-01-25 2013-08-01 トヨタ自動車株式会社 車両遠隔操作情報提供装置、車載遠隔操作情報取得装置及びこれらの装置を備えた車両遠隔操作システム
CN103379581A (zh) * 2012-04-24 2013-10-30 华为技术有限公司 数据传输方法、用户设备、基站和系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3182780A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017193258A1 (en) * 2016-05-09 2017-11-16 Nokia Solutions And Networks Oy Enhancing communication services
EP3468294A4 (en) * 2016-05-25 2019-04-17 ZTE Corporation AD HOC NETWORK METHOD BASED ON VEHICLE MOUNTED TERMINAL, VEHICLE MOUNTED TERMINAL, AND STORAGE MEDIUM
US11134539B2 (en) 2016-05-25 2021-09-28 Zte Corporation Ad-hoc network method based on vehicle-mounted terminal, and vehicle-mounted terminal and storage medium

Also Published As

Publication number Publication date
US20170188355A1 (en) 2017-06-29
CN105491667A (zh) 2016-04-13
EP3182780A4 (en) 2017-09-20
EP3182780B1 (en) 2019-10-09
EP3182780A1 (en) 2017-06-21
CN105491667B (zh) 2019-06-11

Similar Documents

Publication Publication Date Title
WO2016041359A1 (zh) 一种vdc资源请求方法、用户设备和基站
CN104869526B (zh) 一种设备到设备通信及其资源分配方法、设备
US10070430B2 (en) Method for configuring resource to data radio bearer DRB, and apparatus
CN108605250B (zh) QoS生成方法、设备以及系统
WO2018127092A1 (zh) 一种免授权资源分配的方法、用户设备以及网络设备
WO2016019655A1 (zh) 设备到设备业务处理方法及装置
CN103002594A (zh) 直接通信信道建立方法、装置及系统
CN110958692B (zh) 副链路传输资源的选择方法、配置方法及设备
KR20200134261A (ko) 통신 방법 및 관련 장치
US9838949B2 (en) Terminal discovery method, terminal, server, base station, management entity, and system
JP2022528060A (ja) 指示方法、端末機器及びネットワーク側機器
WO2017075782A1 (zh) 消息发送方法、资源分配方法及设备
WO2015109569A1 (zh) 资源配置方法和装置
CN108307453A (zh) 一种移动性管理方法、网络侧设备、车联网终端及系统
JP2016533109A (ja) デバイス間近接サービスにおいて信号を伝送する方法、基地局およびユーザーイクイップメント
JP6845310B2 (ja) アップリンクデータオペレーションのための方法及び装置
WO2024166387A1 (ja) 端末及び通信方法
WO2023132084A1 (ja) 端末、基地局及び通信方法
WO2023095351A1 (ja) 端末、及び基地局
WO2023223512A1 (ja) ネットワークノード及び通信方法
JP7516669B2 (ja) リソース割り当て方法、装置及び端末
WO2024116337A1 (ja) 端末、基地局、通信方法及び無線通信システム
WO2024171413A1 (ja) 端末及び通信方法
WO2024069907A1 (ja) 端末、基地局、及び通信方法
WO2023223511A1 (ja) ネットワークノード及び通信方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15841284

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2015841284

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015841284

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE