WO2020030017A1 - 配置侧行链路传输资源的方法和装置 - Google Patents

配置侧行链路传输资源的方法和装置 Download PDF

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Publication number
WO2020030017A1
WO2020030017A1 PCT/CN2019/099669 CN2019099669W WO2020030017A1 WO 2020030017 A1 WO2020030017 A1 WO 2020030017A1 CN 2019099669 W CN2019099669 W CN 2019099669W WO 2020030017 A1 WO2020030017 A1 WO 2020030017A1
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Prior art keywords
data
resource
transmission
terminal device
network device
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PCT/CN2019/099669
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English (en)
French (fr)
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WO2020030017A8 (zh
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酉春华
范强
卓义斌
王君
刘星
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华为技术有限公司
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Priority to EP19848491.7A priority Critical patent/EP3833064B1/en
Priority to BR112021002357-7A priority patent/BR112021002357A2/pt
Publication of WO2020030017A1 publication Critical patent/WO2020030017A1/zh
Priority to US17/171,472 priority patent/US20210168660A1/en
Publication of WO2020030017A8 publication Critical patent/WO2020030017A8/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the field of communications, and in particular, to a method and device for configuring side-link transmission resources.
  • a terminal device can communicate with another terminal device through the transit of a network device, or directly communicate with another terminal device without passing through the network device.
  • the communication link between the two terminal devices may be referred to as a sidelink or a through link.
  • the side link has two transmission modes: centralized scheduling transmission mode and distributed transmission mode.
  • the sending end can send data to the receiving end according to the resources scheduled by the network equipment; in the distributed transmission mode
  • the network device can configure a resource pool for the sender through system information block (SIB) or radio resource control (RRC) signaling, or the resource pool is pre-configured on the sender.
  • SIB system information block
  • RRC radio resource control
  • the sender can autonomously select resources in the configured or pre-configured resource pool to send data.
  • V2X communication system is the basis for unmanned driving.
  • a vehicle as a terminal device can use side links to communicate with other terminal devices.
  • the transmitted data is related to the life safety of the passengers. Therefore, the data transmitted in the V2X communication system has high requirements for transmission reliability.
  • the side-link communication method cannot meet the V2X communication system's reliability for data transmission. Requirements.
  • This application provides a method and device for configuring side-link transmission resources, which can meet the requirements for data transmission reliability of a V2X communication system.
  • the present application provides a method for configuring side-link transmission resources, including: a terminal device determining a transmission requirement of first data, the first data needs to be transmitted on the side-link; In the case of the first data transmission requirement, the terminal device sends request information to the network device, where the request information is used to request the configuration of a second resource, where the first resource is a resource configured for transmitting side-link data through a broadcast message. Resource, the second resource is a resource configured for transmitting side-link data configured through a unicast message; and when the first resource meets the transmission requirement of the first data, the first data is sent through the first resource.
  • the above method may be executed by, for example, a terminal device, and each side link data corresponds to a transmission requirement (for example, reliability requirement).
  • the terminal device obtains the first data, it determines the transmission characteristic (for example, reliability) of the first resource. And determine whether to send the first data through the first resource according to whether the reliability of the first resource meets the reliability requirement of the first data, in a case that the reliability of the first resource does not meet the reliability requirement of the first data , Request the network device to configure a second resource, and the second resource is a dedicated resource configured for unicast messages, so that the V2X communication system can meet the requirements for data transmission reliability and / or delay characteristics; the reliability of the first resource meets all requirements In the case of the reliability requirements of the first data, the first data is sent directly through the first resource, and there is no need to request the network device to configure the second resource, so that it can reduce the data transmission reliability requirements while meeting the V2X communication system. Transmission delay.
  • acquiring the transmission requirements of the first data by the terminal device includes: the terminal device receiving configuration information from the network device, the configuration information being used to configure the correspondence between the service type of the data and the channel busy ratio CBR threshold; And the service type of the first data determines a CBR threshold corresponding to the first data, wherein the CBR threshold corresponding to the first data is a transmission requirement of the first data; the method further includes: the CBR on the first resource does not satisfy the first data In the case of the corresponding CBR threshold, it is determined that the first resource does not meet the transmission requirements of the first data.
  • the terminal device can obtain the correspondence between the service type of the data and the CBR threshold through the configuration information in advance, so that the CBR threshold corresponding to the first data can be found from the correspondence according to the service type of the first data, so that the first data transmission can be determined. demand.
  • the obtaining, by the terminal device, the transmission requirements of the first data includes: the terminal device receives instruction information from a network device, where the instruction information is used to indicate whether the first resource meets the requirements of the first data.
  • the terminal device can directly obtain the indication information of whether the first data can be transmitted through the first resource from the network device, and does not need to measure the transmission characteristics of the first resource, thereby reducing the reliability of data transmission while meeting the V2X communication system requirements. Transmission delay.
  • the sending the request information to the network device includes: sending the request information to the network device if the transmission characteristics of the second resource meet the transmission requirements of the first data.
  • the second resource is, for example, a highly reliable resource configured by a broadcast message or dedicated signaling, and the terminal device may determine whether the reliability of the second resource meets the reliability requirement of the first data before sending the request information to the network device. When the reliability of the second resource meets the reliability requirements of the first data, the terminal device sends request information to the network device. When the reliability of the second resource does not meet the reliability requirements of the first data, the terminal device There is no need to send request information to network equipment, thereby avoiding waste of air interface resources.
  • the first data includes at least two data packets
  • obtaining the transmission requirements of the first data by the terminal device includes: obtaining, by the terminal device, the transmission requirements of the data packet with the highest transmission requirement among the at least two data packets as the first data. Transmission needs.
  • this solution can ensure that the transmission requirements of each data packet can be met.
  • the method further includes: sending identification information to the network device, where the identification information is used to represent the second resource.
  • the terminal device may determine that the reliability of the second resource meets the demand according to the received power of the reference signal. Therefore, the terminal device may send identification information of the second resource to the network device, so that the network device determines the reliability of the second resource according to the identification information. It does not require network equipment to measure the reliability of the second resource, thereby reducing the burden on the network equipment.
  • the above-mentioned request information is carried in message 3 (message 3, MSG3), or the above-mentioned request information is carried in a request message, and the request message is used to request to configure the second resource.
  • the terminal device may request the network device to configure the second resource through the MSG3 during the random access process, where the MSG3 carries the request information.
  • the terminal device may request the network device to configure the second resource through a dedicated request message.
  • the method further includes: determining a transmission requirement of the second data, the second data is side-link data; and sending the second data through the first resource, wherein the transmission characteristics of the first resource meet the requirements of the second data. Transmission requirements.
  • the second data can also be transmitted through the first resource.
  • the reliability of the first resource meets the reliability requirements of the second data. In this way, the reliability does not need to be transmitted through the highly reliable resource. Low-demand side-link data can avoid wasting resources.
  • the present application provides an apparatus for configuring side-link transmission resources.
  • the apparatus may be a communication device (for example, a terminal device) or a chip in the communication device.
  • the apparatus may include a processing unit and a transceiving unit.
  • the processing unit may be a processor, and the transceiver unit may be a transceiver;
  • the communication device may further include a storage unit, the storage unit may be a memory; the storage unit is used to store instructions, and the processing The unit executes the instructions stored in the storage unit, so that the communication device executes the method in the first aspect and one of the optional implementation manners.
  • the processing unit may be a processor, and the transceiver unit may be an input / output interface, a pin, or a circuit; the processing unit executes instructions stored in the storage unit to enable the communication
  • the device executes the method in the first aspect and one of its optional implementation manners.
  • the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, or may be located outside the chip in the communication device. Storage unit (for example, read-only memory, random access memory, etc.).
  • the present application provides another apparatus for configuring a side-link transmission resource.
  • the apparatus may implement functions corresponding to each step in the method according to the first aspect, and the functions may be implemented by hardware.
  • the corresponding software can be implemented by hardware execution.
  • the hardware or software includes one or more units or modules corresponding to the functions described above.
  • the apparatus includes a processor configured to support the apparatus to perform a corresponding function in the method according to the first aspect.
  • the device may also include a memory for coupling to the processor, which stores program instructions and data necessary for the device.
  • the device further includes a communication interface, which is used to support communication between the device and other network elements.
  • the present application provides a computer program product.
  • the computer program product includes computer program code.
  • the terminal device executes the method described in the first aspect.
  • the present application provides a computer storage medium for storing computer software instructions for the terminal device, which includes a program designed to execute the first aspect.
  • the present application further provides a communication system including the apparatus for configuring a side link transmission resource according to the second aspect or the third aspect, and the communication system further includes a link with the configuration side link.
  • a network device that communicates with a device that transmits resources.
  • FIG. 1 is a schematic diagram of a V2X communication system
  • FIG. 2 is a schematic block diagram of a communication system applicable to the present application.
  • FIG. 3 is a schematic flowchart of a method for configuring a side link resource provided by the present application
  • FIG. 4 is a schematic flowchart of a method for determining a side link resource based on a random access process provided in the present application
  • FIG. 5 is a schematic diagram of an apparatus for configuring a side link resource provided by the present application.
  • FIG. 6 is a schematic diagram of a terminal device provided by the present application.
  • FIG. 7 is a schematic diagram of another apparatus for configuring a side link resource provided by the present application.
  • FIG. 1 is a schematic diagram of V2V communication and V2I communication. As shown in Figure 1, through V2V communication between vehicles, they can broadcast their own speed, driving direction, specific location, whether or not the emergency brake is stepped on, etc. to the surrounding vehicles. The drivers of the surrounding vehicles can obtain more information through this type of information.
  • roadside infrastructure such as roadside units (RSUs)
  • RSUs roadside units
  • LTE Long term evolution
  • a centralized scheduling transmission mode also known as Mode3
  • a distributed transmission mode also known as Mode4
  • Centralized scheduling transmission mode (also referred to as Mode3): In this mode, each time a terminal device needs to request resources from a network device before sending data, and send V2X service data according to the resources allocated by the network device. Because the resources of the terminal equipment are uniformly allocated by the network equipment, the situation that the same resources are not allocated to adjacent terminal equipment does not occur. Therefore, the centralized transmission mode can ensure better transmission reliability. However, since interactive signaling is required between the terminal device and the network device each time, relatively speaking, compared with the distributed transmission mode, the transmission delay of sending data in the centralized scheduling transmission mode is longer.
  • a network device can configure a resource pool for a terminal device by using SIB messages or dedicated radio resource control (Dedicated RRC) signaling.
  • Dedicated RRC dedicated radio resource control
  • a terminal device sends V2X data, it can Sending data through at least part of the resources obtained from the master and slave resource pools by random selection, based on the listening reservation mechanism or based on the partial listening reservation mechanism.
  • the terminal device autonomously sends data by at least part of the resources obtained from the resource pool in the pre-configuration information.
  • the pre-configured information may be a resource pool configured in the terminal when the terminal leaves the factory, or may be information pre-configured by a network device and stored in the terminal internally. Because the terminal device selects resources autonomously, it may happen that different terminal devices select the same resource to send data, so transmission collisions may occur.
  • FIG. 2 shows a schematic block diagram of a communication system suitable for the present application.
  • the terminal device 121 and the network device 110 can determine the resources used for data transmission through signaling interaction. Subsequently, the terminal device 121 uses the determined resources to communicate with the device. The terminal device 122 communicates. That is, the solution described in this application is applied to the scenario of side-link transmission.
  • the terminal device 121 may be a vehicle with a communication function, or an in-vehicle electronic system, a mobile phone, a wearable electronic device, or other communication devices that implement the V2X protocol.
  • the network device 110 may be an evolutionary base station (eNB) in an LTE system, or a base station (gNB) in a 5G communication system.
  • eNB evolutionary base station
  • gNB base station
  • the above network device is only an example.
  • the network device 110 may also be a relay station, an access point Entry points, car devices, wearables, and other types of devices.
  • the method 300 shown in FIG. 3 may be executed by a terminal device or by other devices, such as a chip.
  • the execution device of the method 300 is not limited in this application.
  • the method 300 includes:
  • S310 The terminal device acquires transmission requirements of the first data, and the first data needs to be transmitted on the side link.
  • the first data may be data waiting to be transmitted through a side link, that is, The first data is data to be sent.
  • the transmission requirements of the first data may be expressed by quality of service (QoS).
  • QoS quality of service
  • the transmission demand of the first data may also be expressed by other quantified identification information of service quality, and the transmission demand of the first data may be expressed by a quality of service flow identifier (QFI).
  • QFI is used to identify a QoS flow.
  • QoS flow is a fine-grained QoS differentiation mechanism.
  • a QoS flow has the same QoS parameters.
  • QoS parameters include any one or more of the following parameters:
  • the resource type can be represented by one or more of the following parameters: guaranteed bit rate (GBR), non-guaranteed bit rate (non-GBR), low Delay guaranteed bit rate (GBR), where GBR is used to indicate the guaranteed transmission resources of a QoS flow.
  • GBR guaranteed bit rate
  • non-GBR non-guaranteed bit rate
  • GRR low Delay guaranteed bit rate
  • the resource type is used to determine whether the guaranteed flow bit rate (GFBR) value of the QoS flow level associated with the dedicated network resource is permanently allocated.
  • GFBR guaranteed flow bit rate
  • Priority For example, this priority can be used to indicate the scheduling priority between different QoS flows. High-priority QoS flows are guaranteed to be scheduled. The priority associated with 5G QoS features is used to indicate. The priority of scheduling resources in the QoS flow.
  • Packet delay budget (PDB).
  • the PDB defines an upper limit for the delay of a data packet between the UE and a user plane function (UPF).
  • UPF user plane function
  • PDU protocol data unit
  • IP data packets packet loss proportion upper limit
  • Average window (exemplary window).
  • the average window can be defined only for the GBR QoS flow.
  • the average window indicates the guaranteed flow bit rate (GFBR) and the maximum flow bit rate (GFBR). MFBR) will be calculated for the duration.
  • GFBR guaranteed flow bit rate
  • GFBR maximum flow bit rate
  • MDBV Maximum data burst volume
  • 5G access network 5G access network, 5G-AN
  • 5G-AN 5G access network
  • 5G-AN partial PDB 5G-AN partial PDB
  • the delay requirement of the first data may also be expressed by a packet priority (prose-packet priority) (PPPP), and the reliability requirement of the first data may be expressed by a packet reliability (prose-packet reliability) (PPPR), This application does not limit this.
  • PPPP packet priority
  • PPPR packet reliability
  • the terminal device sends request information to the network device, where the request information is used to request the configuration of the second resource, where the first resource is a user configured through a broadcast message.
  • the resource for transmitting the side-link data, and the second resource is a resource configured for transmitting the side-link data through a unicast message.
  • S320 may also be replaced by: in a case where the first resource does not meet the transmission requirements of the first data, the terminal device sends request information to the network device, where the request information is used to request the configuration of the second resource, where the first resource
  • the resource is a resource configured to transmit side-link data through a unicast message
  • the second resource is a resource configured to transmit side-link data through a broadcast message.
  • the terminal device sends the first data through the first resource.
  • the transmission characteristics may be used to indicate transmission capabilities of transmission resources (also referred to as “resources”).
  • the first resource meets the transmission requirements of the first data ", that is,” the transmission characteristics of the first resource meets the transmission requirements of the first data ".
  • the transmission characteristic is reliability
  • the terminal device determines the degree of reliability of transmission resources. Resources with better reliability can transmit data with higher reliability requirements. Resources with poor reliability cannot transmit reliably. Data with high requirements on transmission; transmission characteristics can also be delay characteristics.
  • Terminal equipment determines the low-latency guarantee level of transmission resources. Resources with higher low-latency guarantee levels can transmit data with higher delay-requirement requirements. Resources with poor guarantee of delay characteristics cannot transmit data with higher delay requirements.
  • the transmission characteristics may also be other properties used to indicate the transmission capability of the transmission resources.
  • the transmission characteristics may be one property, for example, the transmission characteristics are reliability or delay characteristics;
  • the transmission characteristics may also be a collection of multiple properties.
  • the transmission characteristics are reliability (such as packet loss rate) and delay characteristics.
  • the technical solution provided in the present application is described below by taking transmission characteristics as reliability as an example.
  • a resource may be at least one resource pool of a carrier.
  • a carrier may include at least one resource pool.
  • a resource pool includes multiple sub-channels, and each resource pool corresponds to one. Geographical area. A geographic area can correspond to one or more resource pools.
  • the reliability of a resource can be expressed by a channel busy ratio (CBR).
  • CBR can be defined as: taking a resource pool as an example, among all subchannels of a resource pool, the number of available subchannels and the number of all subchannels Ratio.
  • the available subchannels can be determined by the following methods: if the terminal device measures the subchannels and the measured value meets a preset threshold, the subchannel is available; if the measured value does not meet the preset threshold, the subchannel is unavailable.
  • the measured value is, for example, a received signal strength indicator (RSSI) or a reference signal received power (RSRP) value.
  • RSSI received signal strength indicator
  • RSRP reference signal received power
  • the subchannel is available, and if the RSRP of a subchannel is lower than the preset threshold or the RSSI is higher than the preset threshold, the subchannel is unavailable. .
  • the terminal device determines that the transmission characteristic of the first resource does not meet the transmission requirement of the first data. In a case where the CBR is less than or equal to a preset value corresponding to the transmission requirement of the first data, the terminal device determines that the transmission characteristic of the first resource meets the transmission requirement of the first data.
  • the terminal device After the terminal device obtains the first data, the terminal device first determines whether the reliability of the first resource meets the reliability requirements of the first data, for example, in a resource pool corresponding to N (N is greater than or equal to 1) carriers of the first resource When the CBR of the at least one resource pool is greater than the CBR threshold of the first data transmission requirement, or when the CBR of the at least one resource pool corresponding to the carrier designated by the network device is greater than the CBR threshold of the first data transmission requirement, It is determined that the reliability of the first resource does not meet the reliability requirement of the first data, wherein the carrier specified by the network device is one or more of the N carriers of the first resource, and the at least one resource pool belongs to the same geographic area. region.
  • N is greater than or equal to 1
  • the terminal device sends request information to the network device, requesting the network device to configure a resource (ie, a second resource) that meets the reliability requirements of the first data. Therefore, the first data can be sent on the second resource, which meets the requirements of the V2X communication system for data transmission reliability.
  • a resource ie, a second resource
  • the terminal device determines that the reliability of the first resource meets the reliability requirements of the first data
  • the first data can be sent directly through the first resource, and there is no need to request the network device to configure the second resource, so that the The V2X communication system meets the requirements for data transmission reliability while reducing the transmission delay of the first data.
  • the first resource may be a competitive resource (such as a Mode4 resource)
  • the second resource may be a competitive resource (such as a Mode4 resource), or a non-competitive resource (such as a Mode3 resource).
  • the second resource may also be another transmission resource, which is not limited in this application.
  • the first resource and the second resource are Mode4 resources
  • the first resource is a Mode4 resource with lower reliability and the second resource is a Mode4 resource with higher reliability.
  • the first resource is all terminal devices. Mode4 resources that can be used, and the second resource is Mode4 resources that can be used by a specific type of terminal device.
  • S310 includes: the terminal device receives configuration information from the network device, and the configuration information is used to configure the correspondence relationship between the service type of the data and the CBR threshold; the terminal device determines the first data correspondence according to the correspondence relationship and the service type of the first data CBR threshold, where the CBR threshold corresponding to the first data is the transmission requirement of the first data;
  • the method 300 may further include:
  • the CBR of the first resource does not meet the CBR threshold corresponding to the first data, it is determined that the first resource does not meet the transmission requirement of the first data.
  • the above service type may be determined by service information, that is, "the correspondence relationship between the service type of the configuration information for the configuration data and the CBR threshold" may be replaced with "the correspondence relationship between the service information of the configuration information for the configuration data and the CBR threshold".
  • the service information may be one or more of PPPR, PPPP, and QFI.
  • the terminal device can obtain the correspondence between the service type of the data and the CBR threshold through the configuration information in advance.
  • the correspondence is, for example, a table.
  • the terminal device can find the CBR corresponding to the first data from the correspondence according to the service type of the first data.
  • the threshold so that the first data transmission requirement can be determined.
  • configuration can be understood as “allocation” and can also be understood as “indication”, for example, "the first resource is a resource configured for transmitting side-link data through a broadcast message.
  • “" Means: a broadcast message allocates resources for transmitting side-link data to the terminal device, and the broadcast message may carry identification information of the resource.
  • the correspondence between the service type of the configuration information used to configure the data and the CBR threshold means: the configuration information is used to indicate that the correspondence between the service type of the data and the CBR threshold is one of the preset correspondences, or The configuration information includes the correspondence between the service type of the data and the CBR threshold as a preset correspondence.
  • S310 includes: the terminal device receives instruction information from the network device, the instruction information is used to indicate whether the first resource meets a requirement of the first data.
  • the terminal device can directly obtain the indication information of whether the first data can be transmitted through the first resource from the network device, and does not need to measure the transmission characteristics of the first resource, thereby reducing the reliability of data transmission while meeting the V2X communication system requirements. Transmission delay.
  • the first data includes at least two data packets
  • S310 includes: the terminal device acquires a transmission demand of a data packet with the highest transmission demand among the at least two data packets as the first data transmission demand.
  • PPPR1 ⁇ PPPR2 ⁇ PPPR3.
  • Each type of PPPR corresponds to a CBR threshold, which is threshold 1, threshold. 2.
  • the order of the CBR thresholds is: Threshold 1> Threshold 2> Threshold 3, as shown in Table 1.
  • PDU protocol data unit
  • the two data packets are, for example, a first data packet and a third data packet.
  • the PPPR corresponding to the first data packet is PPPR1.
  • the PPPR corresponding to the three data packets is PPPP3.
  • the measurement value of the CBR measurement of the Mode4 resource pool of one carrier of the first resource is A, where threshold 1> A> threshold 3, in this case, the first data packet Reliability can be guaranteed, but the reliability of data transmission of the third data packet on the first resource is difficult to be guaranteed, so it is necessary to request a Mode3 resource from the network device for sending the first data packet and the third data packet.
  • Threshold 3 PPPR reliability CBR threshold PPPR1 90% Threshold 1 PPPR2 99.9% Threshold 2 PPPR3 99.999% Threshold 3
  • the foregoing embodiment uses PPPR as an example to describe how to determine the transmission requirements of the first data when multiple data packets are sent at the same time, and may also determine the transmission requirements of the first data when multiple data packets are sent at the same time according to other parameters.
  • S320 includes: sending the request information to the network device if the second resource meets the transmission requirements of the first data.
  • the second resource is, for example, a highly reliable resource configured by dedicated signaling.
  • the terminal device may determine whether the reliability of the second resource meets the reliability requirement of the first data. When the reliability of the second resource meets the reliability requirements of the first data, the terminal device sends a request message to the network device. When the reliability of the second resource does not meet the reliability requirements of the first data, the terminal The device does not need to send request information to the network device, thereby avoiding waste of air interface resources.
  • the request information is sent to the network device.
  • the method 300 further includes: sending identification information to the network device, where the identification information is used to represent the second resource.
  • the terminal device may determine the reliability of the second resource according to some parameters (for example, the reference signal received power). Therefore, the terminal device may send identification information indicating the second resource to the network device, so as to facilitate the network device.
  • An available resource ie, a second resource
  • the network device does not need to measure the reliability of the second resource, thereby reducing the burden on the network device.
  • the terminal device may send a list of available carrier IDs or frequency points to the network device, so that the network device selects an available carrier or frequency point from the above list as a second resource and configures the terminal device.
  • the terminal device may also send a measurement quantity (CBR or RSSI or RSRP) corresponding to the carrier or frequency point to the network device, and the above-mentioned measurement quantity is indication information indicating the reliability of the carrier or frequency point (that is, the second resource).
  • CBR or RSSI or RSRP measurement quantity
  • the network device can directly determine whether the carrier or frequency meets the reliability requirements of the first data according to the instruction information, and the network device does not need to measure the reliability of the second resource, thereby reducing the burden on the network device.
  • the above-mentioned request information is carried in MSG3, or the above-mentioned request information is carried in a request message, which is used for requesting to configure a second resource.
  • the terminal device may request the network device to configure the second resource through the MSG3 during the random access process, where the MSG3 carries the request information.
  • the terminal device may also request the network device to configure the second resource through a dedicated request message.
  • FIG. 4 illustrates a method for requesting configuration of a second resource provided by the present application. The method includes:
  • S401 The terminal device sends MSG1 to the network device, and MSG1 is a random access preamble, and requests random access.
  • the terminal device receives the MSG2, and the MSG2 is a random access response (RAR).
  • RAR random access response
  • the terminal device sends MSG3 according to the RAR, and the MSG3 carries an identification bit, which is used to indicate a trigger event of random access. For example, a side link buffer status report (buffer status report (BSR)) is used to trigger the network.
  • BSR buffer status report
  • the device configures the second resource.
  • the MSG3 may also carry a list of available carrier IDs or frequency IDs.
  • the MSG3 may also carry a measurement quantity (CBR or RSSI or RSRP) corresponding to a carrier or a frequency point, so that the network device configures the second resource.
  • CBR or RSSI or RSRP measurement quantity
  • the terminal device receives MSG4, that is, a contention resolution message.
  • the network device when the network device receives the dedicated request message, the network device allocates an uplink resource (for example, Uu grant) to the terminal device, and the uplink resource is used as a buffer for the terminal device to send the side link Status report (buffer status report, BSR) or scheduling request (SR).
  • BSR buffer status report
  • SR scheduling request
  • the network device can determine the service type and data volume of the data to be sent by the terminal device according to the BSR or the SR, so that it can be allocated to the terminal device.
  • the side-link resource corresponding to the service type and data volume of the data to be sent, that is, the second resource.
  • the method 300 further includes:
  • the transmission requirement of the second data is determined, and the second data is side-link data.
  • the second data is side-link data different from the first data.
  • the second data can also be transmitted through the first resource, or the network device passes The first resource may also request the network device to configure the second resource while transmitting the second data.
  • the reliability of the first resource meets the reliability requirements of the second data. In this way, it is not necessary to transmit sidelink data with lower reliability requirements through the resources with higher reliability, thereby avoiding waste of resources.
  • the apparatus for configuring side-link transmission resources includes a hardware structure and / or a software module corresponding to each function.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
  • FIG. 5 shows a schematic structural diagram of an apparatus for configuring side-link transmission resources provided in the present application.
  • the apparatus 500 includes: a processing unit 510 and a sending unit 520.
  • the processing unit 510 controls the sending unit 520 to perform the sending steps in the method 300.
  • the processing unit 510 is configured to: obtain a transmission requirement of the first data, where the first data needs to be transmitted on a side link;
  • the sending unit 520 is configured to: when the first resource does not meet the transmission requirements of the first data, send request information to the network device, where the request information is used to request configuration of the second resource, where the first resource is configured by a broadcast message Resource for transmitting side-link data, and the second resource is a resource for transmitting side-link data configured through a unicast message; or,
  • the first data is sent through the first resource.
  • the apparatus 500 further includes a receiving unit, and the processing unit 510 is configured to receive configuration information from a network device through the receiving unit, where the configuration information includes service type information of the first data and a channel corresponding to the service type information
  • the busy ratio CBR threshold, the service type information, and the CBR threshold are used to indicate a transmission requirement of the first data.
  • the processing unit 510 is configured to receive instruction information from the network device through the receiving unit, where the instruction information is used to indicate whether the first resource meets a requirement of the first data.
  • the sending unit 520 is configured to: if the transmission characteristics of the second resource meet the transmission requirements of the first data, send the request information to the network device.
  • the processing unit 510 is configured to determine that the transmission demand of the data with the highest transmission demand among the at least two data is the transmission demand of the first data, where the at least two data includes the first data, and the at least two data are Data located in the same packet.
  • the sending unit 520 is further configured to send identification information to the network device, where the identification information is used to identify the second resource.
  • the request information is carried in message 3, or the request information is carried in a request message, and the request message is used to request to configure the second resource.
  • processing unit 510 is further configured to: determine a transmission requirement of the second data, where the second data is side-link data;
  • the sending unit 520 is further configured to send the second data through the first resource, where the transmission characteristics of the first resource meet the transmission requirements of the second data.
  • each unit of the apparatus 500 is only a functional division, and there may be other division methods in actual implementation.
  • the device for configuring the side-link transmission resources may be a chip, and the processing unit may be implemented by hardware or software.
  • the processing unit may be a logic circuit, an integrated circuit, etc .;
  • the processing unit may be a general-purpose processor, which is implemented by reading software codes stored in a storage unit, which may be integrated in the processor or located outside the processor. , Stand alone.
  • the apparatus provided by the present application for configuring side-link transmission resources is further described below by taking the apparatus 500 as a terminal device as an example.
  • FIG. 6 is a schematic structural diagram of a terminal device provided by the present application.
  • the terminal device is applicable to the communication system shown in FIG. 2 and executes the steps in the method 300 described above.
  • FIG. 6 shows only the main components of the terminal device.
  • the terminal device 60 includes a processor, a memory, a control circuit, an antenna, and an input / output device.
  • the processor is mainly used to process the communication protocol and communication data, and control the entire terminal device, execute a software program, and process the data of the software program, for example, to support the terminal device to perform the actions described in the foregoing method embodiments, such as To determine the transmission requirements of the first data.
  • the memory is mainly used for storing software programs and data, for example, storing the first data described in the foregoing embodiment.
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input / output devices such as a touch screen, a display screen, and a keyboard, are mainly used to receive data input by the user and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor outputs the baseband signal to a radio frequency circuit after the baseband processing is performed on the data to be transmitted, and the radio frequency circuit processes the baseband signal and sends the radio frequency signal outward in the form of electromagnetic waves through an antenna.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data. deal with.
  • FIG. 6 only shows one memory and one processor. In an actual terminal device, there may be multiple processors and multiple memories.
  • the memory may also be referred to as a storage medium or a storage device, which is not limited in this application.
  • the processor may include a baseband processor and / or a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processor is mainly used to control the entire terminal device.
  • Execute the software program process the data of the software program.
  • the processor in FIG. 6 may integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, which are interconnected through technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit may also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data may be built in the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having the transmitting and receiving function may be regarded as the transmitting and receiving unit 601 of the terminal device 60, for example, for supporting the terminal device to perform the receiving function and the transmitting function according to the method 400.
  • a processor having a processing function is regarded as a processing unit 602 of the terminal device 60.
  • the terminal device 60 includes a transceiver unit 601 and a processing unit 602.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like.
  • a device for implementing a receiving function in the transceiver unit 601 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver unit 601 may be regarded as a transmitting unit, that is, the transceiver unit 601 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be called a receiver, an input port, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit.
  • the transceiver unit 601 may not include an antenna, but only a circuit part, so that the antenna is externally disposed to the transceiver unit.
  • the processor 602 may be configured to execute instructions stored in the memory, to control the transceiver unit 601 to receive signals and / or send signals to complete functions of the terminal device in the foregoing method embodiment.
  • the function of the transceiver unit 601 may be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 602 controls the transmission and reception unit 601 to implement the reception. Therefore, the processor 602 is a signal transceiving determiner and initiates a data transceiving operation, and the transceiving unit 601 is a signal transceiving performer.
  • FIG. 7 is a schematic structural diagram of a communication device 700.
  • the apparatus 700 may be configured to execute the steps of the method described in the foregoing method embodiment, and reference may be made to the description in the foregoing method embodiment.
  • the communication device 700 may be a chip, an access network device (such as a base station), a terminal device, or other communication devices.
  • the communication device 700 includes one or more processors 701.
  • the processor 701 may be a general-purpose processor or a special-purpose processor. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (such as base stations, terminals, or chips, etc.), execute software programs, and process software program data.
  • the communication device may include a transceiving unit for implementing input (reception) and output (transmission) of signals.
  • the communication device may be a chip, and the transceiver unit may be an input and / or output circuit of the chip, or a communication interface.
  • the chip may be used in a terminal or a base station or other communication equipment.
  • the communication device may be a terminal or a base station or other communication equipment
  • the transceiver unit may be a transceiver, a radio frequency chip, or the like.
  • the communication device 700 includes one or more of the processors 701, and the one or more processors 701 may implement functions of an execution device in the method shown in FIG. 3 and / or FIG. 5.
  • the processor 701 may also implement other functions.
  • the processor 701 may execute instructions, so that the communication device 700 performs the steps described in the foregoing method embodiments.
  • the instructions may be stored in whole or in part in the processor, such as instruction 703, or may be stored in whole or in part in a memory 702 coupled to the processor, such as instruction 704.
  • the communication device 700 performs the steps described in the above method embodiments.
  • the communication device 700 may also include a circuit, which may implement the functions of the network device or the terminal device in the foregoing method embodiment.
  • the communication device 700 may include one or more memories 702 on which instructions 704 are stored, and the instructions may be executed on the processor, so that the communication device 700 executes the foregoing.
  • the memory may further store data.
  • instructions and / or data may also be stored in the processor.
  • the one or more memories 702 may store the corresponding relationships described in the foregoing embodiments, or related parameters or tables involved in the foregoing embodiments.
  • the processor and the memory may be set separately or integrated together.
  • the communication device 700 may further include a transceiver unit 705 and an antenna 706.
  • the processor 701 may also be referred to as a processing unit and controls a communication device (a terminal or a base station).
  • the transceiver unit 705 may be called a transceiver, a transceiver circuit, or a transceiver, etc., and is configured to implement a transceiver function of the communication device through the antenna 706.
  • the present application further provides a communication system including one or more access network devices described above, and one or more terminal devices.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability.
  • each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed and completed by using a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrical memory Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double SDRAM double SDRAM
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced SDRAM
  • SLDRAM synchronous connection dynamic random access memory
  • direct RAMbus RAM direct RAMbus RAM
  • the present application also provides a computer-readable medium on which a computer program is stored.
  • a computer program When the computer program is executed by a computer, the functions of any one of the foregoing method embodiments are implemented.
  • the present application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software implementation it may be implemented in the form of a computer program product, in whole or in part.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) and so on.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • an embodiment mentioned throughout the specification means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the various embodiments do not necessarily refer to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application. The implementation process constitutes any limitation.
  • system and “network” are often used interchangeably herein.
  • the term “and / or” in this document is only a kind of association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean determining B based on A alone, but also determining B based on A and / or other information.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a computer.
  • computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage devices, or can be used to carry or store instructions or data structures Expected program code and any other medium that can be accessed by a computer. Also. Any connection is properly a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology such as infrared, radio, and microwave, then coaxial cable , Fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixing of the media.
  • coaxial cable fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixing of the media.
  • disks and discs include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy discs and Blu-ray discs, where discs typically use magnetism to copy data, and Discs use lasers to copy data.
  • CDs compact discs
  • DVDs digital versatile discs
  • Discs use lasers to copy data.
  • the above combination should also be included in the protection scope of the computer-readable medium.

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Abstract

本申请提供了配置侧行链路传输资源的方法，每个侧行链路数据都对应一个传输需求，终端设备获取第一数据后，确定第一资源的传输特性，并根据第一资源的可靠性是否满足第一数据的可靠性需求确定是否通过第一资源发送第一数据，在第一资源的可靠性不满足所述第一数据的可靠性需求的情况下，请求网络设备配置第二资源，第二资源为单播消息配置的专用资源，从而可以满足V2X通信系统对数据传输可靠性和/或时延特性的要求；在第一资源的可靠性满足所述第一数据的可靠性需求的情况下，直接通过第一资源发送第一数据，无需再请求网络设备配置第二资源，从而可以在满足V2X通信系统对数据传输可靠性的要求的同时减小传输时延。

Description

配置侧行链路传输资源的方法和装置
本申请要求于2018年08月09日提交中国专利局、申请号为201810900554.5、申请名称为“配置侧行链路传输资源的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种配置侧行链路传输资源的方法和装置。
背景技术
在无线通信领域，一个终端设备可以通过网络设备的中转与另一个终端设备通信，也可以不经过网络设备直接与另一个终端设备通信，当一个终端设备不经过网络设备直接与另一个终端设备通信时，该两个终端设备之间的通信链路可以称为侧行链路(sidelink)或直通链路。
侧行链路有两种传输模式：集中调度传输模式和分布式传输模式，其中，在集中调度传输模式下，发送端可以根据网络设备调度的资源向接收端发送数据；在分布式传输模式下，网络设备可以通过系统信息块(system information block，SIB)或无线资源控制(radio resource control，RRC)信令为发送端配置资源池，或者，资源池是预配置在发送端上的，这样，发送端可以自主在配置或预配置的资源池中选择资源来发送数据。
车与万物(vehicle to X，V2X)通信系统是实现无人驾驶的基础，在V2X通信系统中，车辆作为一种终端设备可以采用侧行链路与其它终端设备进行通信，由于V2X通信系统中传输的数据关乎乘车人员的生命安全，因此，V2X通信系统中传输的数据对传输的可靠性要求较高，现有技术中侧行链路的通信方式无法满足V2X通信系统对数据传输可靠性的要求。
发明内容
本申请提供一种配置侧行链路传输资源的方法和装置，可以满足V2X通信系统对数据传输可靠性的要求。
第一方面，本申请提供了一种配置侧行链路传输资源的方法，包括：终端设备确定第一数据的传输需求，第一数据需要在侧行链路上传输；在第一资源不满足第一数据的传输需求的情况下，终端设备向网络设备发送请求信息，该请求信息用于请求配置第二资源，其中，第一资源为通过广播消息配置的用于传输侧行链路数据的资源，第二资源为通过单播消息配置的用于传输侧行链路数据的资源；在第一资源满足第一数据的传输需求的情况下，通过上述第一资源发送第一数据。
上述方法例如可以由终端设备执行，每个侧行链路数据都对应一个传输需求(例如，可靠性需求)，终端设备获取第一数据后，确定第一资源的传输特性(例如，可靠性)， 并根据第一资源的可靠性是否满足第一数据的可靠性需求确定是否通过第一资源发送第一数据，在第一资源的可靠性不满足所述第一数据的可靠性需求的情况下，请求网络设备配置第二资源，第二资源为单播消息配置的专用资源，从而可以满足V2X通信系统对数据传输可靠性和/或时延特性的要求；在第一资源的可靠性满足所述第一数据的可靠性需求的情况下，直接通过第一资源发送第一数据，无需再请求网络设备配置第二资源，从而可以在满足V2X通信系统对数据传输可靠性的要求的同时减小传输时延。
可选地，终端设备获取第一数据的传输需求，包括：终端设备从网络设备接收配置信息，配置信息用于配置数据的业务类型与信道忙碌比CBR门限的对应关系；终端设备根据该对应关系以及第一数据的业务类型确定第一数据对应的CBR门限，其中，第一数据对应的CBR门限为第一数据的传输需求；所述方法还包括：在第一资源的CBR不满足第一数据对应的CBR门限的情况下，确定第一资源不满足第一数据的传输需求。
终端设备可以提前通过配置信息获取数据的业务类型与CBR门限的对应关系，从而可以根据第一数据的业务类型从该对应关系中查找与第一数据对应的CBR门限，从而可以确定第一数据传输需求。
可选地，终端设备获取第一数据的传输需求，包括：终端设备从网络设备接收指示信息，所述指示信息用于指示第一资源是否满足第一数据的需求。
终端设备可以直接从网络设备获取第一数据能否通过第一资源传输的指示信息，无需再测量第一资源的传输特征，从而可以在满足V2X通信系统对数据传输可靠性的要求的同时减小传输时延。
可选地，所述向网络设备发送请求信息，包括：在第二资源的传输特性满足第一数据的传输需求的情况下，向网络设备发送请求信息。
第二资源例如是广播消息或者专用信令配置的可靠性较高的资源，终端设备在向网络设备发送请求信息前，可以判断该第二资源的可靠性是否满足第一数据的可靠性需求，在第二资源的可靠性满足第一数据的可靠性需求的情况下，终端设备向网络设备发送请求信息，在第二资源的可靠性不满足第一数据的可靠性需求的情况下，终端设备无需向网络设备发送请求信息，从而避免了空口资源的浪费。
可选地，第一数据包含至少两个数据包，终端设备获取第一数据的传输需求，包括：终端设备获取所述至少两个数据包中传输需求最高的数据包的传输需求作为第一数据的传输需求。
在多个数据包需要在同一个数据包中发送的情况下，该方案可以确保每一个数据包的传输需求均能得到满足。
可选地，所述方法还包括：向网络设备发送标识信息，该标识信息用于表示第二资源。
例如，终端设备可以根据参考信号接收功率确定第二资源的可靠性满足需求，因此，终端设备可以向网络设备发送第二资源的标识信息，以便于网络设备根据该标识信息确定第二资源的可靠性，无需网络设备测量第二资源的可靠性，从而减小了网络设备的负担。
可选地，上述请求信息承载于消息3(message3，MSG3)中，或者，所上述请求信息承载于请求消息中，该请求消息用于请求配置第二资源。
终端设备可以在随机接入过程中通过MSG3请求网络设备配置第二资源，其中，该MSG3携带请求信息。或者，终端设备也可以通过专用的请求消息请求网络设备配置第二 资源。
可选地，所述方法还包括：确定第二数据的传输需求，第二数据为侧行链路数据；通过第一资源发送第二数据，其中，第一资源的传输特性满足第二数据的传输需求。
终端设备请求网络设备配置第二资源的同时也可以通过第一资源传输第二数据，第一资源的可靠性满足第二数据的可靠性需求，这样，无需通过可靠性较高的资源传输可靠性需求较低的侧行链路数据，从而可以避免资源浪费。
第二方面，本申请提供了一种配置侧行链路传输资源的装置，该装置可以是通信设备(例如，终端设备)，也可以是通信设备内的芯片。该装置可以包括处理单元和收发单元。当该装置是通信设备时，该处理单元可以是处理器，该收发单元可以是收发器；该通信设备还可以包括存储单元，该存储单元可以是存储器；该存储单元用于存储指令，该处理单元执行该存储单元所存储的指令，以使该通信设备执行上述第一方面及其可选实施方式之一中的方法。当该装置是通信设备内的芯片时，该处理单元可以是处理器，该收发单元可以是输入/输出接口、管脚或电路等；该处理单元执行存储单元所存储的指令，以使该通信设备执行上述第一方面及其可选实施方式之一中的方法，该存储单元可以是该芯片内的存储单元(例如，寄存器、缓存等)，也可以是该通信设备内的位于该芯片外部的存储单元(例如，只读存储器、随机存取存储器等)。
第三方面，本申请提供了另一种配置侧行链路传输资源的装置，该装置可以实现上述第一方面所涉及的方法中各个步骤所对应的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的设计中，该装置包括处理器，该处理器被配置为支持该装置执行上述第一方面所涉及的方法中相应的功能。该装置还可以包括存储器，该存储器用于与处理器耦合，其保存该装置必要的程序指令和数据。可选地，该装置还包括通信接口，该通信接口用于支持该装置与其它网元之间的通信。
第四方面，本申请提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被终端设备的通信单元、处理单元或收发器、处理器运行时，使得终端设备执行第一方面所述的方法。
第五方面，本申请提供了一种计算机存储介质，用于储存为上述终端设备所用的计算机软件指令，其包含用于执行第一方面所设计的程序。
第六方面，本申请还提供了一种通信系统，该通信系统包括第二方面或第三方面所述的配置侧行链路传输资源的装置，该通信系统还包括与上述配置侧行链路传输资源的装置进行通信的网络设备。
附图说明
图1是一种V2X通信系统的示意图；
图2是一种适用于本申请的通信系统的示意性框图；
图3是本申请提供的配置侧行链路资源的方法的示意性流程图；
图4是本申请提供的基于随机接入过程确定侧行链路资源的方法的示意性流程图；
图5是本申请提供的一种配置侧行链路资源的装置的示意图；
图6是本申请提供的一种终端设备的示意图；
图7是本申请提供的另一种用于配置侧行链路资源的装置的示意图。
具体实施方式
目前，车辆可以通过车辆与车辆(vehicle to vehicle，V2V)、车辆与路边基础设施(vehicle to infrastructure，V2I)、车辆与行人之间的通信(vehicle to pedestrian，V2P)或者车辆与网络(vehicle to network，V2N)等通信方式来及时获取路况信息或接收信息服务，这些通信方式可以统称为V2X通信。以最常见的V2V通信和V2I通信为例，图1是V2V通信和V2I通信的示意性。如图1所示，车辆之间通过V2V通信，可以将自身的车速、行驶方向、具体位置、是否踩了紧急刹车等信息广播给周围车辆，周围车辆的驾驶员通过获取该类信息，可以更好的感知视距外的交通状况，从而对危险状况作出提前预判进而作出避让。而对于V2I通信，除了上述安全信息的交互外，路边基础设施，例如，路侧单元(road side unit，RSU)可以为车辆提供各类服务信息和数据网络的接入，不停车收费、车内娱乐等功能都极大的提高了交通智能化。
长期演进(long term evolution，LTE)系统是目前主流的无线通信技术，其针对V2X业务特性及传输需求制定了相关的标准，支持基于LTE的V2X通信。其中，在基于LTE系统的V2X通信中，侧行链路通信是主要的通信方式，在侧行链路通信中，终端设备之间的数据传输可以不经过网络设备进行中转。侧行链路通信主要分为两种传输模式，即集中调度传输模式(也可称为Mode3)和分布式传输模式(也可称为Mode4)。下面，对两种传输模式做简单介绍：
集中调度传输模式(也可称为Mode3)：在该模式下，终端设备每次发送数据前，都需要向网络设备申请资源，并根据网络设备分配的资源发送V2X业务数据。由于终端设备的资源是由网络设备统一分配的，因此不会发生临近终端设备分配相同资源的情况，从而，集中式传输模式可以保证更好的传输可靠性。但是，由于每次终端设备和网络设备之间需要交互信令，因此，相对来说，相比于分布式传输模式，采用集中调度传输模式发送数据的传输时延要长。
分布式传输模式(也可称为Mode4)：在有网络覆盖的场景下，网络设备通过SIB消息或专用无线资源控制(Dedicated RRC)信令为终端设备配置资源池终端设备发送V2X数据时，可以通过随机选择、基于侦听预留机制或基于部分侦听预留机制来自主从资源池中获取的至少部分资源来发送数据。在没有网络覆盖的场景下，终端设备自主从预配置信息中的资源池中获取的至少部分资源来发送数据。预配置信息可以是终端在出厂时配置在终端内部的资源池，也可以是由网络设备预先配置的、终端保存在内部的信息。由于终端设备自主选择资源，可能会出现不同终端设备选择相同资源发送数据的情况，因此有可能发生传输碰撞。
所以，在基于分布式传输模式进行通信的不同终端设备使用相同的资源发送数据的情况下，会发生传输碰撞，降低了数据传输的可靠性，影响了数据传输的效率。
图2示出了适用于本申请的通信系统的示意性框图。如图2所示，在该通信系统100中，在传输数据之前，终端设备121与网络设备110可以通过信令交互确定传输数据所使用的资源，随后，该终端设备121使用确定的资源与该终端设备122通信。即，本申请所 描述的方案应用于侧行链路传输的场景中。
终端设备121可以是具有通信功能的车辆，也可以是车载电子系统，还可以是手机，还可以是可穿戴电子设备，还可以是其它执行V2X协议的通信设备。
网络设备110可以是LTE系统中的演进型基站(evolutional node B，eNB)，还可以是5G通信系统中的基站(gNB)，上述网络设备仅是举例说明，网络设备110还可以为中继站、接入点、车载设备、可穿戴设备以及其它类型的设备。
下面，结合图3，详细说明本申请提供的配置侧行链路传输资源的方法。
图3所示的方法300可以由终端设备执行，也可以由其它设备执行，例如芯片，本申请对方法300的执行设备不作限定，方法300包括：
S310，终端设备获取第一数据的传输需求，第一数据需要在侧行链路上传输。
示例性的，在本申请中，“第一”仅用于区分说明，而不应被理解为对本申请的技术方案的限定，第一数据可以是等待通过侧行链路传输的数据，即，第一数据为待发送数据。第一数据的传输需求可以通过服务质量(quality of service，QoS)来表示，第一数据的QoS越高，例如，说明第一数据的可靠性需求和/或时延需求越高，第一数据的QoS越低，说明第一数据的可靠性需求和/或时延需求越低。也可以通过其它服务质量量化标识信息来表示第一数据的传输需求，通过服务质量流标识(quality of service flow identifier，QFI)来表示第一数据的传输需求。QFI用于标识一个QoS流(QoS flow)，QoS流是一种细粒度的QoS区分机制，一个QoS流具有相同的QoS参数，QoS参数包括以下参数中的任意一种或多种：
1、资源类型(resource type)，示例性的，资源类型可以通过下列参数中的一个或多个来表示：保证比特率(guaranteed bit rate，GBR)、非保证比特率(non-GBR)、低时延保证比特率(delay critical GBR)，其中，GBR用于指示一个QoS流的保证传输资源。资源类型用于确定专用的网络资源相关的QoS流级别的保证流量比特率(GFBR)值是否永久分配。
2、优先级(priority level)，示例性的，该优先级可用于指示不同QoS流之间的调度优先级，高优先级的QoS流优先保证调度，与5G QoS特性关联的优先级用于指示在QoS流中调度资源的优先级。
3、包的时延预算(packet delay budget，PDB)，示例性的，该PDB定义了数据包在UE和用户面实体(user plane function，UPF)之间的时延的上限。
4、丢包率(packet error rate，PER)，示例性的，该PER定了协议数据单元(protocol data unit，PDU)(例如IP数据包)的丢包的比例上限，该PDU可以为发送方已发送但接收方未成功接收的数据包。
5、平均窗口(averaging window)，示例性的，该平均窗口可以仅为GBR QoS流定义，平均窗口表示保证流比特率(guaranteed flow bit rate，GFBR)和最大流比特率(maximum flow bit rate，MFBR)将被计算的持续时间。
6、最大数据突发量(maximum data burst volume，MDBV)，示例性的，该MDBV可以仅用于低时延的GBR资源类型，MDBV表示5G接入网(5G access network，5G-AN)在5G-AN PDB(即5G-AN部分PDB)期间需要服务的最大数据量。
可选地，还可以通过包优先级(prose per-packet priority，PPPP)表示第一数据的时延 需求，通过包可靠性(prose per-packet reliability，PPPR)表示第一数据的可靠性需求，本申请对此不作限定。
S320，在第一资源不满足第一数据的传输需求的情况下，终端设备向网络设备发送请求信息，该请求信息用于请求配置第二资源，其中，第一资源为通过广播消息配置的用于传输侧行链路数据的资源，第二资源为通过单播消息配置的用于传输侧行链路数据的资源。
可选的，S320还可以替换为，在第一资源不满足第一数据的传输需求的情况下，终端设备向网络设备发送请求信息，该请求信息用于请求配置第二资源，其中，第一资源为通过单播消息配置的用于传输侧行链路数据的资源，第二资源为通过广播消息配置的用于传输侧行链路数据的资源。
S330，在第一资源满足第一数据的传输需求的情况下，终端设备通过第一资源发送第一数据。
示例性的，传输特性可用于指示传输资源(也可简称为“资源”)传输能力，上述“第一资源不满足第一数据的传输需求”即“第一资源的传输特性不满足第一数据的传输需求”，相应地，“第一资源满足第一数据的传输需求”即“第一资源的传输特性满足第一数据的传输需求”。例如，在传输特性为可靠性的情况下，终端设备确定传输资源的可靠性保证程度，可靠性保证较好的资源能够传输可靠性要求较高的数据，可靠性保证较差的资源不能传输可靠性要求较高的数据；传输特性也可以是时延特性，终端设备确定传输资源的低时延保证程度，低时延保证程度较高的资源能够传输对时延要求较高的数据，低时延特性保证程度较差的资源不能传输对时延要求较高的数据。
上述对传输特性的解释仅是举例说明，传输特性还可以是其它用于指示传输资源的传输能力的性质，此外，传输特性可以是一种性质，例如，传输特性为可靠性或时延特性；传输特性也可以是多种性质的集合，例如，传输特性为可靠性(例如丢包率)和时延特性。为了简洁，下面，以传输特性为可靠性为例对本申请提供的技术方案进行说明。
在本申请中，资源可以是载波(carrier)的至少一个资源池(resource pool)，一个载波可以包括至少一个资源池，一个资源池包括多个子信道(sub-channel)，每个资源池对应一个地理区域，一个地理区域可以对应一个或多个资源池。
可以通过信道忙碌比(channel busy ratio，CBR)表示资源的可靠性，CBR可以定义为：以资源池为例，一个资源池的全部子信道中，可用的子信道的数量与全部子信道的数量的比值。其中，可用的子信道可以通过如下方式确定：终端设备对子信道进行测量，测量值满足预设门限，则说明该子信道可用，测量值不满足预设门限，则说明该子信道不可用，上述测量值例如是接收信号强度指示(received signal strength indicator，RSSI)或参考信号接收功率(reference signal received power，RSRP)的值。例如，一个子信道的RSRP高于预设门限或RSSI低于预设门限，则说明子信道可用，一个子信道的RSRP低于预设门限或RSSI高于预设门限，则说明子信道不可用。
示例性的，CBR的值越大，资源池越拥挤，即，资源的可靠性越低，CBR的值越小，资源池越宽松，即，资源的可靠性越高。可选地，在CBR大于等于第一数据的传输需求对应的预设值的情况下，终端设备确定第一资源的传输特性不满足第一数据的传输需求。在CBR小于等于第一数据的传输需求对应的预设值的情况下，终端设备确定第一资源的 传输特性满足第一数据的传输需求。终端设备获取第一数据后，终端设备首先判断第一资源的可靠性是否满足第一数据的可靠性需求，例如，在第一资源的N(N大于或等于1)个载波对应的资源池中至少一个资源池的CBR大于第一数据的传输需求的CBR门限的情况下，或者，在网络设备指定的载波对应的至少一个资源池的CBR大于第一数据的传输需求的CBR门限的情况下，确定第一资源的可靠性不满足第一数据的可靠性需求，其中，上述网络设备指定的载波为第一资源的N个载波中的一个或多个载波，上述至少一个资源池属于同一块地理区域。此后，终端设备向网络设备发送请求信息，请求网络设备配置满足第一数据的可靠性需求的资源(即，第二资源)。从而可以在第二资源上发送第一数据，满足V2X通信系统对数据传输可靠性的要求。
可选的，在终端设备判定第一资源的可靠性满足第一数据的可靠性需求的情况下，可以直接通过第一资源发送第一数据，无需再请求网络设备配置第二资源，从而可以在满足V2X通信系统对数据传输可靠性的要求的同时减小第一数据的传输时延。
可选的，方法300中，第一资源可以是竞争资源(例如Mode4资源)，第二资源可以是竞争资源(例如Mode4资源)，也可以是非竞争资源(例如Mode3资源)，第一资源和第二资源还可以是其它传输资源，本申请对此不作限定。在第一资源和第二资源均为Mode4资源的情况下，第一资源为可靠性较低的Mode4资源，第二资源为可靠性较高的Mode4资源，例如，第一资源为所有终端设备均可以使用的Mode4资源，第二资源为特定类型的终端设备可以使用的Mode4资源。
示例性的，S310包括：终端设备从网络设备接收配置信息，配置信息用于配置数据的业务类型与CBR门限的对应关系；终端设备根据该对应关系以及第一数据的业务类型确定第一数据对应的CBR门限，其中，第一数据对应的CBR门限为第一数据的传输需求；
可选的，方法300还可以包括：
在第一资源的CBR不满足第一数据对应的CBR门限的情况下，确定第一资源不满足第一数据的传输需求。
上述业务类型可以由业务信息确定，即，“配置信息用于配置数据的业务类型与CBR门限的对应关系”可以替换为“配置信息用于配置数据的业务信息与CBR门限的对应关系”，该业务信息可以是PPPR、PPPP和QFI中的一个或多个。终端设备可以提前通过配置信息获取数据的业务类型与CBR门限的对应关系，该对应关系例如是一个表格，终端设备可以根据第一数据的业务类型从该对应关系中查找与第一数据对应的CBR门限，从而可以确定第一数据传输需求。
应理解，在本申请中，“配置”可以被理解为“分配”，也可以被理解为“指示”，例如，“第一资源为通过广播消息配置的用于传输侧行链路数据的资源”指的是：广播消息为终端设备分配了用于传输侧行链路数据的资源，该广播消息可以携带该资源的标识信息。又例如，“配置信息用于配置数据的业务类型与CBR门限的对应关系”指的是：配置信息用于指示数据的业务类型与CBR门限的对应关系为预设的对应关系中的一个，或者，配置信息包含了数据的业务类型与CBR门限的对应关系为预设的对应关系。
上述对于“配置”的解释仅是举例说明，对于“配置”的其它理解方式，凡是能够合理解释方案的理解方式均适用于本申请。
可选地，S310包括：终端设备从网络设备接收指示信息，所述指示信息用于指示第 一资源是否满足第一数据的需求。
终端设备可以直接从网络设备获取第一数据能否通过第一资源传输的指示信息，无需再测量第一资源的传输特征，从而可以在满足V2X通信系统对数据传输可靠性的要求的同时减小传输时延。
可选地，第一数据包含至少两个数据包，S310包括：终端设备获取所述至少两个数据包中传输需求最高的数据包的传输需求作为第一数据的传输需求。
例如，终端设备当前存在有三类PPPR，分别为：PPPR1，PPPR2，PPPR3，其中，可靠性要求高低顺序为：PPPR1<PPPR2<PPPR3，每一类PPPR，对应一个CBR门限，分别为门限1，门限2，门限3。CBR门限的大小顺序为：门限1>门限2>门限3，如表1所示。当前有两个数据包需要组成一个协议数据单元(protocol data unit，PDU)包发送，该两个数据包例如是第一数据包和第三数据包，第一数据包对应的PPPR为PPPR1，第三数据包对应的PPPR为PPPP3，若当前第一资源的一个载波的Mode4资源池的CBR测量的测量值为A，其中，门限1>A>门限3，在这种情况下，第一数据包的可靠性可以保障，但是第三数据包在第一资源上进行数据传输的可靠性很难得到保障，所以需要向网络设备请求Mode3资源，用于发送第一数据包和第三数据包。
表1
PPPR 可靠性 CBR门限
PPPR1 90％ 门限1
PPPR2 99.9％ 门限2
PPPR3 99.999％ 门限3
上述实施例以PPPR为例对多个数据包同时发送时如何确定第一数据的传输需求进行说明，还可以根据其它参数在多个数据包同时发送时确定第一数据的传输需求。
可选地，S320包括：在第二资源满足第一数据的传输需求的情况下，向网络设备发送请求信息。
示例性的，第二资源例如是专用信令配置的可靠性较高的资源，终端设备在向网络设备发送请求信息前，可以判断该第二资源的可靠性是否满足第一数据的可靠性需求，在第二资源的可靠性满足第一数据的可靠性需求的情况下，终端设备向网络设备发送请求信息，在第二资源的可靠性不满足第一数据的可靠性需求的情况下，终端设备无需向网络设备发送请求信息，从而避免了空口资源的浪费。
例如，在第二资源中至少一个载波对应的至少一个资源池的CBR小于第一数据的PPPR的CBR门限的情况下，向网络设备发送请求信息。
可选地，方法300还包括：向网络设备发送标识信息，该标识信息用于表示第二资源。
示例性的，该终端设备可以根据一些参数(例如，参考信号接收功率)确定第二资源的可靠性，因此，终端设备可以向网络设备发送用于指示第二资源的标识信息，以便于网络设备根据该标识信息确定可用的资源(即，第二资源)，网络设备无需测量第二资源的可靠性，从而减小了网络设备的负担。
例如，终端设备可以向网络设备发送可用载波标识(carrier ID)列表或者频点标识(frequency ID)列表，以便于网络设备从上述列表中选择可用的载波或频点作为第二资源配置给终端设备，终端设备还可以向网络设备发送载波或频点对应的测量量(CBR或 RSSI或RSRP)，上述测量量即指示信息，指示载波或频点(即，第二资源)的可靠性，这样，网络设备可以直接根据指示信息确定载波或频点是否满足第一数据的可靠性需求，无需网络设备测量第二资源的可靠性，从而减小了网络设备的负担。
可选地，上述请求信息承载于MSG3中，或者，所上述请求信息承载于请求消息中，该请求消息用于请求配置第二资源。
示例性的，该终端设备可以在随机接入过程中通过MSG3请求网络设备配置第二资源，其中，该MSG3携带请求信息。或者，终端设备也可以通过专用的请求消息请求网络设备配置第二资源。
图4示出了本申请提供的一种请求配置第二资源的方法。该方法包括：
S401，终端设备向网络设备发送MSG1，MSG1即随机接入前导码，请求进行随机接入。
S402，终端设备接收MSG2，MSG2即随机接入响应(random access response，RAR)。
S403，终端设备根据RAR发送MSG3，MSG3携带标识比特位，该标识比特位用于指示随机接入的触发事件，例如，携带侧行链路缓冲状态报告(buffer status report，BSR)用于触发网络设备配置第二资源。可选地，MSG3还可以携带可用载波标识(carrier ID)列表或者频点标识(frequency ID)列表。可选地，MSG3还可以携带载波或频点对应的测量量(CBR或RSSI或RSRP)，以便于网络设备配置第二资源。
S404，终端设备接收MSG4，即，竞争解决消息。
作为一个可选的示例，在网络设备接收到该专用请求消息的情况下，网络设备为终端设备分配一个上行资源(例如，Uu grant)，该上行资源用于终端设备发送侧行链路的缓冲状态报告(buffer status report，BSR)或者调度请求(scheduling request，SR)，网络设备根据该BSR或者该SR可以确定该终端设备的待发送数据的业务类型以及数据量，从而可以为该终端设备分配与待发送数据的业务类型以及数据量相应的侧行链路资源，即，第二资源。
可选地，方法300还包括：
确定第二数据的传输需求，第二数据为侧行链路数据。
通过第一资源发送第二数据，其中，第一资源满足第二数据的传输需求。
示例性的，该第二数据是与第一数据相异的侧行链路数据，终端设备请求网络设备配置第二资源的同时也可以通过第一资源传输第二数据，或者说，网络设备通过第一资源传输第二数据的同时也可以请求网络设备配置第二资源。其中，第一资源的可靠性满足第二数据的可靠性需求，这样，无需通过可靠性较高的资源传输可靠性需求较低的侧行链路数据，从而可以避免资源浪费。
上文详细介绍了本申请提供的配置侧行链路传输资源的方法示例。可以理解的是，配置侧行链路传输资源的装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
图5示出了本申请提供的配置侧行链路传输资源的装置的结构示意图，该装置500包括：处理单元510和发送单元520，处理单元510控制发送单元520执行方法300中的发送步骤，
处理单元510用于：获取第一数据的传输需求，第一数据为需要在侧行链路上传输；
发送单元520用于：在第一资源不满足第一数据的传输需求的情况下，向网络设备发送请求信息，该请求信息用于请求配置第二资源，其中，第一资源为通过广播消息配置的用于传输侧行链路数据的资源，第二资源为通过单播消息配置的用于传输侧行链路数据的资源；或者，
在第一资源满足第一数据的传输需求的情况下，通过上述第一资源发送第一数据。
可选地，装置500还包括接收单元，所述处理单元510用于：通过所述接收单元从网络设备接收配置信息，配置信息包括第一数据的业务类型信息以及与该业务类型信息对应的信道忙碌比CBR门限，业务类型信息和CBR门限用于指示所述第一数据的传输需求。
可选地，所述处理单元510用于：通过所述接收单元从所述网络设备接收指示信息，所述指示信息用于指示所述第一资源是否满足所述第一数据的需求。
可选地，发送单元520用于：在所述第二资源的传输特性满足所述第一数据的传输需求的情况下，向所述网络设备发送所述请求信息。
可选地，处理单元510用于：确定至少两个数据中传输需求最高的数据的传输需求为第一数据的传输需求，其中，该至少两个数据包括第一数据，该至少两个数据为位于相同数据包中的数据。
可选地，发送单元520还用于：向网络设备发送标识信息，该标识信息用于标识第二资源。
可选地，请求信息承载于消息3中，或者，请求信息承载于请求消息中，该请求消息用于请求配置第二资源。
可选地，处理单元510还用于：确定第二数据的传输需求，第二数据为侧行链路数据；
发送单元520还用于：通过第一资源发送第二数据，其中，第一资源的传输特性满足第二数据的传输需求。
应理解，装置500的各个单元的划分仅仅是功能上的划分，实际实现时可能会有其它的划分方法。
本领域的技术人员可以清楚地了解到，上述描述的装置和单元的具体工作过程以及执行步骤所产生的技术效果，可以参考前述对应的方法实施例中的描述，为了简洁，在此不再赘述。
上述配置侧行链路传输资源的装置可以是一个芯片，处理单元可以通过硬件来实现也可以通过软件来实现，在通过硬件实现的情况下，该处理单元可以是逻辑电路、集成电路等；在通过软件来实现的情况下，该处理单元可以是一个通用处理器，通过读取存储单元中存储的软件代码来实现，该存储单元可以集成在处理器中，也可以位于所述处理器之外，独立存在。
下面以装置500为终端设备为例对本申请提供的配置侧行链路传输资源的装置做进一步描述。
图6是本申请提供的一种终端设备的结构示意图。该终端设备可适用于图2所示出的 通信系统中，执行上述方法300中的步骤。为了便于说明，图6仅示出了终端设备的主要部件。如图6所示，终端设备60包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行上述方法实施例中所描述的动作，如，确定第一数据的传输需求。存储器主要用于存储软件程序和数据，例如存储上述实施例中所描述的第一数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。在需要通过无线发送数据的情况下，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。在有数据发送到终端设备的情况下，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图6仅示出了一个存储器和一个处理器。在实际的终端设备中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等，本申请对此不做限定。
作为一种可选的实现方式，处理器可以包括基带处理器和/或中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图6中的处理器可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备60的收发单元601，例如，用于支持终端设备执行如方法400所述的接收功能和发送功能。将具有处理功能的处理器视为终端设备60的处理单元602。如图6所示，终端设备60包括收发单元601和处理单元602。收发单元也可以称为收发器、收发机、收发装置等。可选地，可以将收发单元601中用于实现接收功能的器件视为接收单元，将收发单元601中用于实现发送功能的器件视为发送单元，即收发单元601包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。示例性的，收发单元601可以不包括天线，而仅包括电路部分，使得天线外置于所述收发单元。
处理器602可用于执行该存储器存储的指令，以控制收发单元601接收信号和/或发送信号，完成上述方法实施例中终端设备的功能。作为一种实现方式，收发单元601的功 能可以考虑通过收发电路或者收发的专用芯片实现。在执行各类信号的收发时，如接收第一码块，则处理器602控制收发单元601实现所述接收。因此处理器602是信号收发决定者，并发起数据收发操作，收发单元601是信号收发的执行者。
图7给出了一种通信装置700的结构示意图。装置700可用于执行上述方法实施例所描述的方法的步骤，可以参见上述方法实施例中的说明。通信装置700可以是芯片，接入网设备(如基站)，终端设备或者其它通信设备等。
通信装置700包括一个或多个处理器701。处理器701可以是通用处理器或者专用处理器等。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。所述通信装置可以包括收发单元，用以实现信号的输入(接收)和输出(发送)。例如，通信装置可以为芯片，所述收发单元可以是芯片的输入和/或输出电路，或者通信接口。所述芯片可以用于终端或基站或其他通信设备。又如，通信装置可以为终端或基站或其它通信设备，所述收发单元可以为收发器，射频芯片等。
所述通信装置700包括一个或多个所述处理器701，所述一个或多个处理器701可实现图3和/或图5所示的方法中执行设备的功能。
可选地，处理器701除了实现图3所示的方法中执行设备的功能外，还可以实现其它功能。
可选地，一种设计中，处理器701可以执行指令，使得所述通信装置700执行上述方法实施例中描述的步骤。所述指令可以全部或部分存储在所述处理器内，如指令703，也可以全部或部分存储在与所述处理器耦合的存储器702中，如指令704，也可以通过指令703和704共同使得通信装置700执行上述方法实施例中描述的步骤。
在又一种可能的设计中，通信装置700也可以包括电路，所述电路可以实现前述方法实施例中网络设备或终端设备的功能。
在又一种可能的设计中，通信装置700中可以包括一个或多个存储器702，其上存有指令704，所述指令可在所述处理器上被运行，使得所述通信装置700执行上述方法实施例中描述的方法。可选地，所述存储器中还可以存储有数据。可选地，处理器中也可以存储指令和/或数据。例如，所述一个或多个存储器702可以存储上述实施例中所描述的对应关系，或者上述实施例中所涉及的相关的参数或表格等。所述处理器和存储器可以单独设置，也可以集成在一起。
在又一种可能的设计中，所述通信装置700还可以包括收发单元705以及天线706。所述处理器701也可以称为处理单元，对通信装置(终端或者基站)进行控制。所述收发单元705可以称为收发机、收发电路、或者收发器等，用于通过天线706实现通信装置的收发功能。
本申请还提供一种通信系统，其包括前述的一个或多个接入网设备，和，一个或多个终端设备。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal  processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请各实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请还提供了一种计算机可读介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。在使用软件实现的情况下，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
应理解，说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性 包括在本申请的至少一个实施例中。因此，在整个说明书各个实施例未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
还应理解，在本申请中，“当…时”、“若”以及“如果”均指在某种客观情况下终端设备或者基站会做出相应的处理，并非是限定时间，且也不要求终端设备或基站实现时一定要有判断的动作，也不意味着存在其它限定。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
应理解，在本申请各实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可以用硬件实现，或固件实现，或它们的组合方式来实现。在使用软件实现的情况下，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括RAM、ROM、EEPROM、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本申请所使用的，盘(disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常使用磁性来复制数据，而碟则使用激光来复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本申请技术方案的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (18)

  1. 一种配置侧行链路传输资源的方法，其特征在于，包括：
    终端设备获取第一数据的传输需求，所述第一数据需要在侧行链路上传输；
    在第一资源不满足所述第一数据的传输需求的情况下，所述终端设备向网络设备发送请求信息，所述请求信息用于请求配置第二资源，其中，所述第一资源为通过广播消息配置的用于传输所述侧行链路的数据的资源，所述第二资源为通过单播消息配置的用于传输所述侧行链路的数据的资源。
  2. 根据权利要求1所述的方法，其特征在于，
    所述终端设备获取第一数据的传输需求，包括：
    所述终端设备从所述网络设备接收配置信息，所述配置信息用于配置数据的业务类型与信道忙碌比CBR门限的对应关系；
    所述终端设备根据所述对应关系以及所述第一数据的业务类型确定所述第一数据对应的CBR门限，其中，所述第一数据对应的CBR门限为所述第一数据的传输需求；
    所述方法还包括：
    在所述第一资源的CBR不满足所述第一数据对应的CBR门限的情况下，确定所述第一资源不满足所述第一数据的传输需求。
  3. 根据权利要求1所述的方法，其特征在于，所述终端设备获取第一数据的传输需求，包括：
    所述终端设备从所述网络设备接收指示信息，所述指示信息用于指示所述第一资源是否满足所述第一数据的需求。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述向网络设备发送请求信息，包括：
    在所述第二资源满足所述第一数据的传输需求的情况下，向所述网络设备发送所述请求信息。
  5. 根据权利要求1或4所述的方法，其特征在于，所述第一数据包含至少两个数据包，所述终端设备获取第一数据的传输需求，包括：
    所述终端设备获取所述至少两个数据包中传输需求最高的数据包的传输需求作为所述第一数据的传输需求。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述网络设备发送标识信息，所述标识信息用于表示所述第二资源。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，
    所述请求信息承载于消息3中，或者，
    所述请求信息承载于请求消息中，所述请求消息用于请求配置所述第二资源。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述方法还包括：
    确定第二数据的传输需求，所述第二数据为侧行链路数据；
    通过所述第一资源发送所述第二数据，其中，所述第一资源的传输特性满足所述第二数据的传输需求。
  9. 一种配置侧行链路传输资源的装置，其特征在于，包括处理单元和发送单元，
    所述处理单元用于：获取第一数据的传输需求，所述第一数据需要在侧行链路上传输；
    所述发送单元用于：在第一资源不满足所述第一数据的传输需求的情况下，向网络设备发送请求信息，所述请求信息用于请求配置第二资源，其中，所述第一资源为通过广播消息配置的用于传输所述侧行链路的数据的资源，所述第二资源为通过单播消息配置的用于传输所述侧行链路的数据的资源。
  10. 根据权利要求9所述的装置，其特征在于，所述装置还包括接收单元，所述处理单元用于：
    通过所述接收单元从所述网络设备接收配置信息，所述配置信息用于配置数据的业务类型与信道忙碌比CBR门限的对应关系；
    所述终端设备根据所述对应关系以及所述第一数据的业务类型确定所述第一数据对应的CBR门限，其中，所述第一数据对应的CBR门限为所述第一数据的传输需求；
    在所述第一资源的CBR不满足所述第一数据对应的CBR门限的情况下，确定所述第一资源不满足所述第一数据的传输需求。
  11. 根据权利要求9所述的装置，其特征在于，所述装置还包括接收单元，所述处理单元用于：
    通过所述接收单元从所述网络设备接收指示信息，所述指示信息用于指示所述第一资源是否满足所述第一数据的需求。
  12. 根据权利要求9至11中任一项所述的装置，其特征在于，所述发送单元用于：
    在所述第二资源满足所述第一数据的传输需求的情况下，向所述网络设备发送所述请求信息。
  13. 根据权利要求9或12所述的装置，其特征在于，所述第一数据包含至少两个数据包，所述处理单元用于：
    获取所述至少两个数据包中传输需求最高的数据包的传输需求作为所述第一数据的传输需求。
  14. 根据权利要求9至13中任一项所述的装置，其特征在于，所述发送单元还用于：
    向所述网络设备发送标识信息，所述标识信息用于表示所述第二资源。
  15. 根据权利要求9至14中任一项所述的装置，其特征在于，
    所述请求信息承载于消息3中，或者，
    所述请求信息承载于请求消息中，所述请求消息用于请求配置所述第二资源。
  16. 根据权利要求9至15中任一项所述的装置，其特征在于，
    所述处理单元还用于：确定第二数据的传输需求，所述第二数据为侧行链路数据；
    所述发送单元还用于：通过所述第一资源发送所述第二数据，其中，所述第一资源的传输特性满足所述第二数据的传输需求。
  17. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序使得配置侧行链路传输资源的装置执行权利要求1至8中任一项所述的方法。
  18. 一种包含指令的计算机程序产品，其特征在于，当所述计算机程序运行时，使得计算机执行所述权利要求1至8中任一项所述的方法的步骤。
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