WO2018058676A1 - 一种资源选择方法和装置 - Google Patents

一种资源选择方法和装置 Download PDF

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Publication number
WO2018058676A1
WO2018058676A1 PCT/CN2016/101380 CN2016101380W WO2018058676A1 WO 2018058676 A1 WO2018058676 A1 WO 2018058676A1 CN 2016101380 W CN2016101380 W CN 2016101380W WO 2018058676 A1 WO2018058676 A1 WO 2018058676A1
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WIPO (PCT)
Prior art keywords
threshold
terminal
target
power value
parameter information
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PCT/CN2016/101380
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English (en)
French (fr)
Inventor
才宇
曾勇波
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华为技术有限公司
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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 EP21192217.4A priority Critical patent/EP4002930A1/en
Priority to EP16917426.5A priority patent/EP3496478B1/en
Priority to PCT/CN2016/101380 priority patent/WO2018058676A1/zh
Priority to CN201680086396.3A priority patent/CN109219979B/zh
Priority to US16/334,685 priority patent/US11297600B2/en
Priority to CN202110947735.5A priority patent/CN113709878B/zh
Publication of WO2018058676A1 publication Critical patent/WO2018058676A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to the field of wireless network technologies, and in particular, to a resource selection method and apparatus.
  • a device-to-device (D2D) communication based on a cellular network is a technology that allows terminals to communicate directly by multiplexing cell resources under the control of the system. It can increase the spectrum efficiency of the cellular communication system and reduce the terminal. The transmission power solves the problem of lack of spectrum resources of the wireless communication system to a certain extent.
  • V2X Vehicle to Everything
  • the communication device may be an in-vehicle embedded telematics system or a mobile device such as a smart phone.
  • V2X technology enables vehicles and vehicles, vehicles and base stations, base stations and base stations to communicate, thus obtaining a series of traffic information such as real-time road conditions, road information, pedestrian information, etc., thereby improving driving safety, reducing congestion, improving traffic efficiency, and providing vehicle Entertainment information, etc.
  • V2X communication can be realized based on D2D technology, and each vehicle unit can directly communicate with the onboard unit on other vehicles in the vicinity. Since there is no need to forward through the base station or the roadside unit in V2X communication, the delay of communication between vehicles can be greatly reduced, and the transmission rate can also be improved.
  • the data sent by the user equipment (UE) carries the SA (Scheduling Assignment), and the SA can indicate information such as the resource where the data is located.
  • the service traffic of the UE has a periodicity. For example, the shortest period of the CAM (Cooperative Awareness Message) is 100 ms, and the longest period is 1 s.
  • the UE has the ability to predict the periodicity of the traffic. Therefore, the UE resource reservation scheme is added to the V2X communication. On the one hand, the UE can inform other UEs to reserve a certain resource in the future. On the other hand, when selecting the resource for transmitting data, the UE needs to consider other UE reservations. Resources, try to avoid reuse Resources that other UEs have reserved.
  • V2V defines a scheme in which the UE performs monitoring and semi-static reservation transmission in the autonomous resource selection mode.
  • the UE autonomous resource selection mode when resource selection or resource reselection is triggered, if the data to be transmitted arrives at time m, the UE monitors resource usage between at least time [m-1000, m-1), First, exclude resources that meet certain conditions, and then select one of the remaining resources for data transmission.
  • the condition that a certain resource is excluded is that the resource is reserved in the SA that is received by the UE, and the PSSCH (Physical Sidelink Shared Channel) RSRP (Reference) of the UE on the resource associated with the SA Signal Receiving Power, reference signal received power) is greater than a threshold.
  • PSSCH Physical Sidelink Shared Channel
  • RSRP Reference
  • the threshold is used to determine whether the resource can be multiplexed. If the PSSCH-RSRP is smaller than the threshold, the UE may select the resource to send data and multiplex resources reserved by other UEs. If the PSSCH-RSRP is not less than the threshold, The UE and other UEs may be interfered with each other if the resources are used at the same time, and the UE may not reuse the resources.
  • the UE generally uses the same threshold to determine the PSSCH-RSRP in various scenarios, and the following disadvantages are illustrated by way of example:
  • the transmit power of the UE changes dynamically, and the transmit power of the UE is related to the link loss of the UE to the base station.
  • Small, open-loop power control mechanisms are used in V2X communication.
  • PL is the link loss between two UEs.
  • UE A monitors that a certain resource is indicated or reserved by UE B, and the received PSSCH-RSRP is lower than the threshold, then the resource is not excluded, and may be selected by UE A for transmitting data. It is assumed that UE A selects the resource for transmitting data.
  • UE C receives the signal of UE B on the resource, but at the same time receives interference from UE A.
  • the transmit power or antenna gain of UE B in Figure (a) is greater than the transmit power or antenna gain of UE B in Figure (b), if UE A
  • the power received by UE C in UE (B) is smaller than that in Figure (a)
  • the power received from UE A is larger than that in Figure (a), which is equivalent to the useful signal from UE B.
  • the interference is weakened, and the interference from UE A becomes stronger, resulting in a decrease in the signal-to-interference ratio of UE C, an increase in bit error rate, and a decrease in demodulation performance.
  • UE A monitors that a certain resource is indicated or reserved by UE B, and the received PSSCH-RSRP is lower than the threshold, then this resource is not excluded, and may be selected by UE A for transmitting data. It is assumed that UE A selects the resource for transmitting data.
  • UE C receives the signal of UE A on the resource, but at the same time receives interference from UE B. Assume that the antenna gain of UE A in Figure (a) is greater than the antenna gain of UE A in Figure (b). If UE A uses the same threshold in both cases, then the ratio of UE B to UE A in Figure (b) (a) When closer, the resources reserved by UE B can still be reused.
  • the power received by UE C from UE A in Figure (b) is smaller than that in Figure (a), and the power received from UE B is larger than that in Figure (a), which is equivalent to the useful signal from UE A.
  • the interference is weakened, and the interference from the UE B becomes stronger, resulting in a decrease in the signal-to-interference ratio of the UE C, an increase in the bit error rate, and a decrease in the demodulation performance.
  • UE A monitors that a certain resource is indicated or reserved by UE B, and the received PSSCH-RSRP is lower than the threshold, then this resource is not excluded, and may be selected by UE A for transmitting data. It is assumed that UE A selects the resource for transmitting data.
  • UE C receives the signal of UE A on the resource, but at the same time receives interference from UE B.
  • the present invention provides a resource selection method and apparatus, which can solve the technical problem in the prior art solution that the signal-to-interference ratio is reduced, the error rate is increased, and the demodulation performance is degraded due to the use of the same threshold.
  • the application provides a resource selection method, including:
  • the first terminal first determines at least one of the configuration information and the second parameter information of the second terminal; And determining, according to at least one of the configuration information, the second parameter information, and the first parameter information of the first terminal, a target threshold, where the target threshold is used by the first terminal to perform resource selection.
  • the second parameter information is used to determine at least one of a terminal type, a power value, a location information, an antenna gain, and a link loss of the second terminal, where the first parameter information includes the first terminal.
  • At least one of a terminal type, a power value, position information, an antenna gain, and a link loss selects a resource by changing a target threshold according to different parameters, thereby improving a signal to interference ratio, reducing a bit error rate, and improving demodulation performance.
  • the configuration information is configured, pre-configured, or predefined by the network side device, the configuration information includes at least one threshold, and the at least one threshold is a threshold of signal power,
  • the power value is the product of the transmit power, or the antenna gain and the transmit power, or the sum of the antenna gain and the transmit power when the unit of the antenna gain and the transmit power is dB or dBm.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal of the first terminal.
  • the threshold is used as the target threshold
  • the target terminal type combination includes a terminal type of the first terminal and a terminal type of the second terminal.
  • the configuration information includes a threshold T1 and a threshold T2.
  • the threshold T1 is selected; when the terminal type of the first terminal is P-UE, the threshold T2 is selected.
  • the configuration information includes a threshold T1 and a threshold T2. If the terminal type of the second terminal is V-UE, the threshold T1 is selected; and the terminal type of the second terminal is P-UE, the threshold T2 is selected.
  • the configuration information includes thresholds T1, T2, T3, and T4.
  • the terminal type of the first terminal is V-UE, and the terminal type of the second terminal is V-UE, and the threshold T1 is selected; the terminal type of the first terminal is V-UE, and the terminal type of the second terminal is P-UE, then The threshold T2 is selected; the terminal type of the first terminal is P-UE, and the terminal type of the second terminal is V-UE, then the threshold T3 is selected; the terminal type of the first terminal is P-UE, and the terminal type of the second terminal is P. -UE, then the threshold T4 is selected.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal of the first terminal. Determining the target threshold according to a terminal type corresponding to the threshold in the at least one threshold and a terminal type of the first terminal; or according to the at least one threshold a terminal type corresponding to the threshold and a terminal type of the second terminal, determining the target threshold; or combining a terminal type corresponding to the threshold according to a threshold of the at least one threshold, and a target terminal type Determining the target threshold, the target terminal type combination including a terminal type of the first terminal and a terminal type of the second terminal.
  • the configuration information includes a threshold T1.
  • the configuration information includes a threshold T1.
  • the configuration information includes a threshold T1.
  • the corresponding threshold T2 T1+P3[dbm]
  • P3 is a network side device configuration, or pre-configured or predefined. parameter.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes power of the first terminal a value
  • a threshold corresponding to a power value of the first terminal is used as the target threshold
  • a threshold corresponding to a power value of the second terminal is used as the target threshold
  • the threshold is used as the target threshold
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the configuration information includes a threshold T1 and a threshold T2.
  • the configuration information includes a threshold T1 and a threshold T2. If the power value of the second terminal is Pa, the threshold T1 is selected; and the power value of the second terminal is Pb, the threshold T2 is selected. As another example, the configuration information includes a threshold T1 and a threshold T2. The power value of the first terminal is Pa, and the power value of the second terminal is Pa, and the threshold T1 is selected; the power value of the first terminal is Pa, and the power value of the second terminal is Pb, and the threshold T2 is selected.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes the first terminal a power value; determining the target threshold according to a power value corresponding to the threshold in the at least one threshold and a power value of the first terminal; or according to a threshold in the at least one threshold and the threshold Determining the target threshold value according to the corresponding power value and the power value of the second terminal; or determining the target threshold according to a power value corresponding to the threshold value and a target power value according to a threshold value of the at least one threshold value
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the configuration information includes a threshold T1.
  • the configuration information includes a threshold T1.
  • the determining may be determined according to the link loss or the location information. The power value of the second terminal.
  • the at least one threshold corresponds to a link loss
  • the second parameter information is used to determine a link loss of the second terminal
  • the first parameter information includes the first terminal a link loss
  • a threshold corresponding to a link loss of the first terminal is used as the target threshold
  • a threshold corresponding to a link loss of the second terminal is used as the target threshold
  • the threshold corresponding to the link loss combination is used as the target threshold
  • the target link loss combination includes a link loss of the first terminal and a link loss of the second terminal.
  • the at least one threshold corresponds to a link loss
  • the second parameter information is used to determine a link loss of the second terminal
  • the first parameter information includes the first terminal Link loss; determining the target threshold based on a link loss corresponding to the threshold in the at least one threshold and a link loss of the first terminal; or based on a threshold in the at least one threshold a link loss corresponding to the threshold, and a link loss of the second terminal, determining the target threshold; or a link loss corresponding to the threshold according to a threshold of the at least one threshold, and a target link loss Combining, determining the target threshold, the target link loss combination including the first Link loss of a terminal and link loss of the second terminal.
  • the at least one threshold corresponds to location information
  • the second parameter information is used to determine location information of the second terminal
  • the first parameter information includes a location of the first terminal Information: a threshold corresponding to the location information of the first terminal is used as the target threshold; or a threshold corresponding to the location information of the second terminal is used as the target threshold; or a combination corresponding to the target location information
  • the threshold is used as the target threshold, and the target location information combination includes location information of the first terminal and location information of the second terminal.
  • the at least one threshold corresponds to location information
  • the second parameter information is used to determine location information of the second terminal
  • the first parameter information includes a location of the first terminal Determining the target threshold according to the location information corresponding to the threshold in the at least one threshold and the location information of the first terminal; or corresponding to the threshold according to a threshold in the at least one threshold Determining the target threshold according to the location information and the location information of the second terminal; or determining the target threshold according to the location information corresponding to the threshold in the at least one threshold and the target location information.
  • the target location information combination includes location information of the first terminal and location information of the second terminal.
  • the target threshold is determined according to an attribute of the resource detected by the first terminal and the at least one threshold. Further, the at least one threshold corresponds to an attribute of the resource; a threshold corresponding to an attribute of the resource detected by the first terminal is used as the target threshold; or a resource corresponding to the threshold according to a threshold in the at least one threshold The attribute, and an attribute of the resource detected by the first terminal, determine the target threshold.
  • the attribute 1 of the resource is a terminal type 1 UE, the terminal type 2 UE, and the terminal type 3 UE can all transmit resources, and the terminal type 1 UE uses the threshold T1;
  • the resource attribute 2 is that both the terminal type 1 UE and the terminal type 2 UE can transmit resources, and the terminal Type 1 UE uses threshold T2.
  • the network side device configures a threshold for each configured resource pool, and the first terminal uses a corresponding threshold according to the resource pool to which the detected resource belongs.
  • the threshold corresponding to the configuration resource pool 1 is T1
  • the threshold corresponding to resource pool 2 is T2. If the resource detected by the first terminal belongs to resource pool 1, the threshold T1 is used; if the resource detected by the first terminal belongs to resource pool 2, the threshold T2 is used.
  • the target threshold is determined based on a channel or carrier congestion degree and the at least one threshold.
  • the at least one threshold corresponds to a congestion degree; the channel is to be Or the threshold corresponding to the congestion degree of the carrier is used as the target threshold; or the target threshold is determined according to a congestion degree corresponding to the threshold of the at least one threshold and a congestion degree of the channel or the carrier.
  • the network configuration thresholds T1 and T2 respectively correspond to the congestion levels L1 and L2, and the UE selects a corresponding threshold according to the congestion degree of the current channel or carrier.
  • the congestion degree is L1
  • the threshold is T1 [dbm]
  • the corresponding threshold is T1 + Xn [dbm].
  • the greater the congestion degree the smaller the target threshold.
  • the data transfer block is prioritized, and the higher priority data transfer block can preferentially use resources. Therefore, in addition to determining the target threshold according to factors in the above embodiments, the first terminal may determine the target threshold together with the priority of the data transfer block.
  • the second parameter information is used to determine at least one of a terminal type, a power value, a location information, an antenna gain, and a link loss of the second terminal, where the first parameter
  • the information includes at least one of a terminal type, a power value, location information, an antenna gain, and a link loss of the first terminal.
  • the at least one threshold corresponds to at least one of a terminal type, a power value, location information, an antenna gain, and a link loss. Determining the target threshold based on the second parameter information and/or the first parameter information, and the at least one threshold. For example, the network side device configures thresholds T1, T2, T3, and T4.
  • the terminal type of the first terminal is a V-UE, and the power value is Pa, the threshold value is determined as T1; the terminal type of the first terminal is P-UE, and the power value is Pb, the threshold is determined as T2; For the V-UE, if the power value is Pb, the threshold is determined to be T3; the terminal type of the first terminal is P-UE, and the power value is Pa, and the threshold is determined to be T4.
  • the present application provides a resource selection apparatus configured to implement the method and function performed by the resource multiplexing apparatus in the above first aspect, implemented by hardware/software, and the hardware/software includes The unit corresponding to the above function.
  • the present application provides a terminal, including: a processor, a memory, and a communication bus, wherein the communication bus is configured to implement connection communication between the processor and the memory, and the processor executes the storage in the memory
  • the program is used to implement the steps in a resource selection method provided by the above first aspect.
  • FIG. 1 is a schematic structural diagram of a terminal communication provided by a prior art solution
  • FIG. 2 is a first schematic diagram of signal interference of a terminal communication provided by a prior art solution
  • FIG. 3 is a second schematic diagram of signal interference of a terminal communication provided by a prior art solution
  • FIG. 5 is a schematic flowchart of a resource selection method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a resource selection apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a resource multiplexing device according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of a resource selection method according to an embodiment of the present invention. As shown in the figure, the method in the embodiment of the present invention includes:
  • the first terminal determines at least one of configuration information and second parameter information of the second terminal.
  • the second parameter information is used to determine at least one of a terminal type, a power value, a location information, an antenna gain, and a link loss of the second terminal, where the first parameter information includes the first At least one of a terminal type, a power value, location information, an antenna gain, and a link loss of a terminal.
  • the first terminal is a UE that selects a resource
  • the second terminal is a UE that reserves resources.
  • the second terminal needs to inform other terminals to reserve a certain resource in the future and send the second parameter information to the other terminal, and the first terminal receives the second parameter information sent by the second terminal when selecting the resource, so as to obtain the second parameter.
  • the second parameter information of the terminal is configured, pre-configured, or predefined by the network side device, and the configuration information includes at least one threshold.
  • the first terminal is configured according to the configuration information, the second parameter information, and the first terminal. At least one of the first parameter information of the terminal determines a target threshold, and the target threshold is used by the first terminal to perform resource selection.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal type of the first terminal.
  • a threshold corresponding to a terminal type of the first terminal may be used as the target threshold; or a threshold corresponding to a terminal type of the second terminal may be used as the target threshold; or a threshold corresponding to a target terminal type combination may be used.
  • the target terminal type combination includes a terminal type of the first terminal and a terminal type of the second terminal.
  • the transmit power and antenna gain of each UE are fixed, and the network configures different thresholds for different terminal types or terminal type combinations.
  • the UE selecting the resource selects a corresponding threshold according to its own UE type and/or the type of UE that reserves the resource. For example, when the UE that selects the resource is a V-UE, the corresponding threshold is T1; when the UE that selects the resource is a P-UE, the corresponding threshold is T2, and so on. Alternatively, when the UE that reserves the resource is a V-UE, the corresponding threshold is T1; when the UE that reserves the resource is a P-UE, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; when the UE that selects the resource is the V-UE, and the UE that reserves the resource is the P-UE, the corresponding The threshold is T2; when the UE that selects the resource is the P-UE, and the UE that reserves the resource is the P-UE, the corresponding threshold is T3, and so on, where the V-UE is a vehicle of the vehicle type, P- The UE is a pedestrian type of UE.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal type of the first terminal. Determining the target threshold according to a power value corresponding to the threshold of the at least one threshold and a power value of the first terminal; or a power corresponding to the threshold according to a threshold of the at least one threshold Determining the target threshold according to a value, and a power value of the second terminal; or determining the target threshold according to a power value corresponding to the threshold value and a target power value according to a threshold value of the at least one threshold value
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the configuration information includes a threshold value T1 corresponding to the UE that selects the resource as the V-UE, and the UE that reserves the resource is the V-UE, and the UE that selects the resource is the V-UE, and the UE that reserves the resource is the P-UE.
  • the configuration information does not include a corresponding threshold, but the network configures the relationship between the threshold corresponding to the other terminal types and the threshold T1, and can calculate other terminal types according to the relationship between the threshold T1 and the threshold corresponding to other terminal types and the threshold T1.
  • the threshold T1 is a threshold corresponding to the target terminal type combination
  • Tn is a threshold corresponding to other terminal types that need to be determined.
  • the threshold T1 is corresponding.
  • T1 corresponds to the UE that selects the resource is type 1 UE
  • the reserved resource UE is type 2 UE
  • Tn ⁇ n*T1+( ⁇ n*Ptx1+ ⁇ n*Ptx2+ ⁇ n*Ptx3+ ⁇ n*Ptx4)+Pn[dbm ]
  • Ptx1 is the transmit power of the type 1 UE
  • Ptx2 is the transmit power of the type 2 UE
  • Ptx3 is the transmit power of the UE selecting the resource
  • Ptx4 is the transmit power of the reserved resource UE
  • Pn, ⁇ n, ⁇ n, ⁇ n, ⁇ n ⁇ n is a parameter configured on the network side or pre-configured or predefined.
  • the threshold T1 corresponds to the UE that selects the resource is type 1 UE
  • the reserved resource UE is type 2 UE
  • Tn ⁇ n*T1+( ⁇ n*G1+ ⁇ n*G2+ ⁇ n*G3+ ⁇ n*G4)+Pn[dbm ]
  • G1 is the antenna gain of the type 1 UE
  • G2 is the antenna gain of the type 2 UE
  • G3 is the antenna gain of the selected resource UE
  • G4 is the antenna gain of the reserved resource UE
  • Pn, ⁇ n, ⁇ n, ⁇ n, ⁇ n, ⁇ n is a network side configuration, or a pre-configured or pre-defined parameter.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes a power value of the first terminal.
  • a threshold corresponding to the power value of the first terminal may be used as the target threshold; or a threshold corresponding to a power value of the second terminal may be used as the target threshold; or a threshold corresponding to a target power value combination
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal, where the power value is a product of a transmit power, or an antenna gain and a transmit power, Or the sum of the antenna gain and the transmit power.
  • the power value is the sum of the transmit power and the antenna gain.
  • the corresponding threshold is T1; when the power value of the UE that selects the resource is Pb, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; when the power value of the UE that reserves the resource is Pb, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; the power value of the UE that selects the resource is Pa, and the power value of the UE that reserves the resource is Pb.
  • the corresponding threshold is T2; when the power value of the UE that selects the resource is Pb, and the power value of the UE that reserves the resource is Pb, the corresponding threshold is T3, and so on.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes a power value of the first terminal. Determining the target threshold according to a power value corresponding to the threshold of the at least one threshold and a power value of the first terminal; or a power value corresponding to the threshold according to a threshold of the at least one threshold And determining, by the power value of the second terminal, the target threshold; or determining, according to a threshold value of the at least one threshold, a power value corresponding to the threshold, and a target power value, determining the target threshold, the target The power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the first terminal may determine the target threshold according to at least one of a power value of the first terminal, an antenna gain, and a terminal type, and at least one of a power value of the second terminal, an antenna gain, and a terminal type.
  • the second parameter information does not include the power value of the second terminal but includes link loss or location information
  • the power value of the second terminal may be determined according to the link loss or the location information, thereby determining Target threshold.
  • the transmit power of the second terminal is related to the link loss between the second terminal and the base station, and the second terminal does not directly indicate its transmit power, but the second parameter that is transmitted.
  • the UE may not directly indicate its transmit power, but include location information in the transmitted second parameter information, first determining the link loss of the second terminal according to the location information and the pre-configured first network configuration parameter, and then according to the chain.
  • Road loss and pre-configured second network configuration parameters determine the second end The transmit power of the terminal, wherein the location information may include a distance between the second terminal and the base station or a GPS (Global Positioning System) location information of the second terminal.
  • the target threshold may be determined according to an attribute of the resource detected by the first terminal and the at least one threshold.
  • the at least one threshold corresponds to an attribute of the resource, and the threshold corresponding to the attribute of the resource detected by the first terminal is used as the target threshold; or the resource corresponding to the threshold according to the threshold in the at least one threshold.
  • the network can configure resources used by certain types of terminals, and resources used by different types of terminal transmissions may be duplicated.
  • the first terminal performs resource selection, it is monitored that a certain resource is reserved by the second terminal, and if the resource is an overlapping resource used by the first terminal type and the second terminal type, the threshold T1 is used; or if the resource only Threshold T2 is used for the first terminal type.
  • the type 1 UE uses the threshold T1; when the network configuration resource is a type 1 UE and the type 2 UE can transmit the resource, the type 1 UE uses Threshold T2; when the network configuration resource is a resource transmitted by the Type 1 UE, the Type 1 UE uses the threshold T3.
  • the network side device configures a threshold for each configured resource pool, and the first terminal uses a corresponding threshold according to the resource pool to which the detected resource belongs. For example, the threshold corresponding to the configuration resource pool 1 is T1, and the threshold corresponding to resource pool 2 is T2. If the resource detected by the first terminal belongs to resource pool 1, the threshold T1 is used; if the resource detected by the first terminal belongs to resource pool 2, the threshold T2 is used.
  • the target threshold is determined according to a congestion degree of a channel or a carrier and the at least one threshold.
  • the at least one threshold corresponds to a congestion degree; a threshold corresponding to a congestion degree of the channel or a carrier may be used as the target threshold; or a congestion degree corresponding to the threshold according to a threshold value in the at least one threshold, and The degree of congestion of the channel or carrier determines the target threshold.
  • the congestion degree of the network is higher.
  • Congestion control can be used in V2X communication.
  • the UE reduces the transmission power, and the first terminal determines a certain The threshold for whether a reserved resource should be excluded should also vary with the transmission power.
  • the network configuration thresholds T1 and T2 respectively correspond to the congestion levels L1 and L2, and the UE selects a corresponding threshold according to the congestion degree of the current channel or carrier.
  • the congestion degree is L1
  • the threshold used by the first terminal is T1; when the congestion degree is L2, the threshold used by the UE is T2.
  • the threshold corresponding to the network configuration congestion degree L1 is T1 [dbm], and when the congestion degree is Ln, the corresponding threshold is T1+Xn[dbm].
  • the UE may determine a corresponding threshold according to the congestion degree of the current channel or carrier and T1.
  • the target threshold may be determined according to a priority of the data transmission block. Specifically, the data transmission block is prioritized, and the data transmission block with higher priority can preferentially use resources.
  • the priority information of the data transmission block may be indicated in the SA. Therefore, in addition to determining the target threshold according to factors in the above embodiments, the first terminal may determine the target threshold together with the priority of the data transfer block.
  • the corresponding thresholds are T11, T12, T13, and T14;
  • the corresponding thresholds are T21, T22, T23, and T24;
  • the corresponding The thresholds are T31, T32, T33, and T34, and so on.
  • the corresponding thresholds T21, T22, T23, and T24 are first determined, and then according to the priority of the data transmission block, from the thresholds T21, T22, T23, and The corresponding threshold is selected in T24.
  • Other methods of determining the target threshold are similar.
  • the UE may select the resource to send data, and multiplex the resources reserved by the second terminal;
  • the first terminal and the second terminal may be interfered with each other if the resource is used at the same time, and the UE may not reuse the resource.
  • the first terminal first determines at least one of the configuration information and the second parameter information of the second terminal; and then, according to the configuration information, the second parameter information, and the first parameter of the first terminal At least one of the information determines a target threshold and finally performs resource selection based on the target threshold.
  • the resource is selected by changing the target threshold according to different parameters, thereby improving the signal to interference ratio, reducing the bit error rate, and improving the demodulation performance.
  • FIG. 6 is a schematic structural diagram of a resource selection apparatus according to an embodiment of the present invention.
  • the device in the embodiment of the present invention includes:
  • the information determining module 601 is configured to determine at least one of the configuration information and the second parameter information of the second terminal.
  • the second parameter information is used to determine at least one of a terminal type, a power value, a location information, an antenna gain, and a link loss of the second terminal, where the first parameter information includes the first At least one of a terminal type, a power value, location information, an antenna gain, and a link loss of a terminal.
  • the first terminal is a UE that selects a resource
  • the second terminal is a UE that reserves resources.
  • the second terminal needs to inform other terminals to reserve a certain resource in the future and send the second parameter information to the other terminal, and the first terminal receives the second parameter information sent by the second terminal when selecting the resource, so as to obtain the second parameter.
  • the second parameter information of the terminal is configured, pre-configured, or predefined by the network side device, and the configuration information includes at least one threshold.
  • the threshold determining module 602 is configured to determine, according to at least one of the configuration information, the second parameter information, and the first parameter information of the first terminal, a target threshold, where the target threshold is used by the first terminal. Resource selection.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal type of the first terminal.
  • a threshold corresponding to a terminal type of the first terminal may be used as the target threshold; or a threshold corresponding to a terminal type of the second terminal may be used as the target threshold; or a threshold corresponding to a target terminal type combination may be used.
  • the target terminal type combination includes a terminal type of the first terminal and a terminal type of the second terminal.
  • the transmit power and antenna gain of each UE are fixed, and the network configures different thresholds for different terminal types or terminal type combinations.
  • the UE selecting the resource selects a corresponding threshold according to its own UE type and/or the type of UE that reserves the resource. For example, when the UE that selects the resource is a V-UE, the corresponding threshold is T1; when the UE that selects the resource is a P-UE, the corresponding threshold is T2, and so on. Alternatively, when the UE that reserves the resource is a V-UE, the corresponding threshold is T1; when the UE that reserves the resource is a P-UE, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; when the UE that selects the resource is the V-UE, and the UE that reserves the resource is the P-UE, the corresponding The threshold is T2; when the UE that selects the resource is the P-UE, and the UE that reserves the resource is the P-UE, the corresponding threshold is T3, and so on, where the V-UE is a vehicle of the vehicle type, P- UE is pedestrian (pedestrian) Type of UE.
  • the at least one threshold corresponds to a terminal type
  • the second parameter information is used to determine a terminal type of the second terminal
  • the first parameter information includes a terminal type of the first terminal. Determining the target threshold according to a power value corresponding to the threshold of the at least one threshold and a power value of the first terminal; or a power corresponding to the threshold according to a threshold of the at least one threshold Determining the target threshold according to a value, and a power value of the second terminal; or determining the target threshold according to a power value corresponding to the threshold value and a target power value according to a threshold value of the at least one threshold value
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the configuration information includes a threshold value T1 corresponding to the UE that selects the resource as the V-UE, and the UE that reserves the resource is the V-UE, and the UE that selects the resource is the V-UE, and the UE that reserves the resource is the P-UE.
  • the configuration information does not include a corresponding threshold, but the network configures the relationship between the threshold corresponding to the other terminal types and the threshold T1, and can calculate other terminals according to the relationship between the threshold T1 and the threshold corresponding to other terminal types and the threshold T1.
  • the type corresponds to the threshold. It is assumed that the threshold T1 is a threshold corresponding to the target terminal type combination, and Tn is a threshold corresponding to other terminal types that need to be determined.
  • the threshold T1 is corresponding.
  • T1 corresponds to the UE that selects the resource is type 1 UE
  • the reserved resource UE is type 2 UE
  • Tn ⁇ n*T1+( ⁇ n*Ptx1+ ⁇ n*Ptx2+ ⁇ n*Ptx3+ ⁇ n*Ptx4)+Pn[dbm ]
  • Ptx1 is the transmit power of the type 1 UE
  • Ptx2 is the transmit power of the type 2 UE
  • Ptx3 is the transmit power of the UE selecting the resource
  • Ptx4 is the transmit power of the reserved resource UE
  • Pn, ⁇ n, ⁇ n, ⁇ n, ⁇ n ⁇ n is a parameter configured on the network side or pre-configured or predefined.
  • the threshold T1 corresponds to the UE that selects the resource is type 1 UE
  • the reserved resource UE is type 2 UE
  • Tn ⁇ n*T1+( ⁇ n*G1+ ⁇ n*G2+ ⁇ n*G3+ ⁇ n*G4)+Pn[dbm ]
  • G1 is the antenna gain of the type 1 UE
  • G2 is the antenna gain of the type 2 UE
  • G4 is the antenna gain of the reserved resource UE
  • Pn, ⁇ n, ⁇ n, ⁇ n, ⁇ n, ⁇ n is a network side configuration, or a pre-configured or pre-defined parameter.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes a power value of the first terminal.
  • a threshold corresponding to the power value of the first terminal may be used as the target threshold; or a threshold corresponding to a power value of the second terminal may be used as the target threshold; or a threshold corresponding to a target power value combination
  • the target power value combination includes a power value of the first terminal and a power value of the second terminal, where the power value is a product of a transmit power, or an antenna gain and a transmit power, Or the sum of the antenna gain and the transmit power.
  • the power value is the sum of the transmit power and the antenna gain.
  • the corresponding threshold is T1; when the power value of the UE that selects the resource is Pb, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; when the power value of the UE that reserves the resource is Pb, the corresponding threshold is T2, and so on.
  • the corresponding threshold is T1; the power value of the UE that selects the resource is Pa, and the power value of the UE that reserves the resource is Pb.
  • the corresponding threshold is T2; when the power value of the UE that selects the resource is Pb, and the power value of the UE that reserves the resource is Pb, the corresponding threshold is T3, and so on.
  • the at least one threshold corresponds to a power value
  • the second parameter information is used to determine a power value of the second terminal
  • the first parameter information includes a power value of the first terminal. Determining the target threshold according to a power value corresponding to the threshold of the at least one threshold and a power value of the first terminal; or a power value corresponding to the threshold according to a threshold of the at least one threshold And determining, by the power value of the second terminal, the target threshold; or determining, according to a threshold value of the at least one threshold, a power value corresponding to the threshold, and a target power value, determining the target threshold, the target The power value combination includes a power value of the first terminal and a power value of the second terminal.
  • the first terminal may determine the target threshold according to at least one of a power value of the first terminal, an antenna gain, and a terminal type, and at least one of a power value of the second terminal, an antenna gain, and a terminal type.
  • the second parameter information does not include the power value of the second terminal but includes link loss or location information
  • the power value of the second terminal may be determined according to the link loss or the location information, thereby determining Target threshold.
  • the transmit power of the second terminal is related to the link loss between the second terminal and the base station, and the second terminal does not directly indicate its transmit power, but the second parameter that is transmitted.
  • the UE may not directly indicate its transmit power, but include location information in the transmitted second parameter information, first determining the link loss of the second terminal according to the location information and the pre-configured first network configuration parameter, and then according to the chain.
  • the path loss and the pre-configured second network configuration parameter determine the transmit power of the second terminal, wherein the location information may include a distance between the second terminal and the base station or a GPS (Global Positioning System) location information of the second terminal.
  • the target threshold may be determined according to an attribute of the resource detected by the first terminal and the at least one threshold.
  • the at least one threshold corresponds to the attribute of the resource, and the threshold corresponding to the attribute of the resource detected by the first terminal may be used as the target threshold; or the resource corresponding to the threshold according to the threshold in the at least one threshold.
  • the network can configure resources used by certain types of terminals, and resources used by different types of terminal transmissions may be duplicated.
  • the first terminal performs resource selection, it is monitored that a certain resource is reserved by the second terminal, and if the resource is an overlapping resource used by the first terminal type and the second terminal type, the threshold T1 is used; or if the resource only Threshold T2 is used for the first terminal type.
  • the type 1 UE uses the threshold T1; when the network configuration resource is a type 1 UE and the type 2 UE can transmit the resource, the type 1 UE uses Threshold T2; when the network configuration resource is a resource transmitted by the Type 1 UE, the Type 1 UE uses the threshold T3.
  • the network side device configures a threshold for each configured resource pool, and the first terminal uses a corresponding threshold according to the resource pool to which the detected resource belongs. For example, the threshold corresponding to the configuration resource pool 1 is T1, and the threshold corresponding to resource pool 2 is T2. If the resource detected by the first terminal belongs to resource pool 1, the threshold T1 is used; If the resource detected by the first terminal belongs to resource pool 2, the threshold T2 is used.
  • the target threshold is determined according to a congestion degree of a channel or a carrier and the at least one threshold.
  • the at least one threshold corresponds to a congestion degree; a threshold corresponding to a congestion degree of the channel or a carrier may be used as the target threshold; or a congestion degree corresponding to the threshold according to a threshold value in the at least one threshold, and The degree of congestion of the channel or carrier determines the target threshold.
  • the congestion degree of the network is higher.
  • Congestion control can be used in V2X communication.
  • the UE reduces the transmission power, and the first terminal determines a certain The threshold for whether a reserved resource should be excluded should also vary with the transmission power.
  • the network configuration thresholds T1 and T2 respectively correspond to the congestion levels L1 and L2, and the UE selects a corresponding threshold according to the congestion degree of the current channel or carrier.
  • the congestion degree is L1
  • the threshold used by the first terminal is T1; when the congestion degree is L2, the threshold used by the UE is T2.
  • the threshold corresponding to the network configuration congestion degree L1 is T1 [dbm], and when the congestion degree is Ln, the corresponding threshold is T1+Xn[dbm].
  • the UE may determine a corresponding threshold according to the congestion degree of the current channel or carrier and T1.
  • the target threshold may be determined according to a priority of the data transmission block. Specifically, the data transmission block is prioritized, and the data transmission block with higher priority can preferentially use resources.
  • the priority information of the data transmission block may be indicated in the SA. Therefore, in addition to determining the target threshold according to factors in the above embodiments, the first terminal may determine the target threshold together with the priority of the data transfer block.
  • the corresponding thresholds are T11, T12, T13, and T14;
  • the corresponding thresholds are T21, T22, T23, and T24;
  • the corresponding The thresholds are T31, T32, T33, and T34, and so on.
  • the UE that selects the resource is the V-UE and the UE that reserves the resource is the P-UE, first, the corresponding T21, T22, T23, and T24 are determined, and then according to the priority of the data transmission block, from T21, T22, T23, and T24. Select the corresponding threshold. Other methods of determining the target threshold are similar.
  • the UE may select the resource to send data, and multiplex the second.
  • the resource reserved by the terminal when the reference signal received power of the physical link shared channel is not less than the received power threshold, the first terminal and the second terminal may be interfered with each other if the resource is used at the same time, and the UE may not reuse The resource.
  • the first terminal first determines at least one of the configuration information and the second parameter information of the second terminal; and then, according to the configuration information, the second parameter information, and the first parameter of the first terminal At least one of the information determines a target threshold and finally performs resource selection based on the target threshold.
  • the resource is selected by changing the target threshold according to different parameters, thereby improving the signal to interference ratio, reducing the bit error rate, and improving the demodulation performance.
  • FIG. 7 is a schematic structural diagram of a resource multiplexing device according to the present invention.
  • the device can include at least one processor 701, such as a CPU, at least one communication interface 702, at least one memory 703, and at least one communication bus 704.
  • the communication bus 704 is used to implement connection communication between these components.
  • the communication interface 702 of the device in the embodiment of the present invention is used for signaling or data communication with other node devices.
  • the memory 703 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory 703 can also optionally be at least one storage device located remotely from the aforementioned processor 701.
  • a set of program codes is stored in the memory 703, and the processor 701 executes the program stored in the memory 703, executes the method executed by the resource multiplexing device, or implements the functions implemented by the resource multiplexing device.
  • the storage medium may include a flash disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.

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Abstract

本发明实施例提供了一种资源选择方法，包括：第一终端确定配置信息和第二终端的第二参数信息中的至少一种；所述第一终端根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。本发明实施例还提供了一种资源选择装置，采用本发明，通过根据不同的参数改变目标阈值来选择资源，从而提高信干比，减少误码率以及提高解调性能。

Description

一种资源选择方法和装置 技术领域
本发明涉及无线网络技术领域，尤其涉及一种资源选择方法和装置。
背景技术
基于蜂窝网络的D2D(Device-to-Device，设备对设备)通信，是在系统的控制下允许终端之间通过复用小区资源直接进行通信的技术，它能够增加蜂窝通信系统频谱效率，降低终端发射功率，在一定程度上解决无线通信系统频谱资源匮乏的问题。
为了提升交通系统的安全性和智能化，智能交通的系统理念逐渐兴起。智能交通可以利用新一代的通信网络和数据处理能力，提高交通系统的整体效率，降低能量损耗，增加运输的安全和便捷。V2X(Vehicle to Everything，车联网)技术允许汽车与所有附近其它汽车及道路基础设施进行连续通信，比如，汽车与红绿灯、校区和铁路道口等设施之间通信。通信设备可以是车内嵌入式远程信息处理系统，或者是智能手机等移动设备。V2X技术使得车与车、车与基站、基站与基站之间能够通信，从而获得实时路况、道路信息、行人信息等一系列交通信息，从而提高驾驶安全性、减少拥堵、提高交通效率、提供车载娱乐信息等。
基于D2D技术可以实现V2X通信，实现每个车载单元与附近其他车辆上的车载单元进行直接的通信。由于在V2X通信中无需通过基站或路边单元的转发，车辆之间通信的延时可以大大降低，传输速率也可提高。在D2D通信中，当车辆距离较近时，UE(User Equipment，用户设备)发送的数据均携带有SA(Scheduling Assignment，调度分配)，SA可以指示数据所在的资源等信息。另外，UE的业务流量具有周期性，比如，CAM(Cooperative Awareness Message，协同感知消息)的最短周期是100ms，最长周期是1s，UE有能力预知其流量的周期性。因此在V2X通信中增加了UE资源预留的方案，一方面，UE可以告知其他UE自身预留未来某个资源，另一方面，UE在选择发送数据的资源时，需要考虑其他UE预留的资源，尽量避免复用 其他UE已经预留的资源。
V2V定义了UE在自主资源选择模式下进行监测和半静态预留传输的方案。在UE自主资源选择模式下，在资源选择或资源重选被触发时，如果将要发送的数据在时刻m到达，UE至少在时刻[m-1000,m-1)之间监测资源的使用情况，首先排除符合一定条件的资源，然后在剩下的资源中选择一个进行数据发送。其中，某一个资源被排除的条件为：UE接收到的SA中已经预留该资源，并且在与该SA关联的资源上UE的PSSCH(Physical Sidelink Shared Channel，物理链路共享信道)RSRP(Reference Signal Receiving Power，参考信号接收功率)大于一个阈值。其中，所述阈值用于判断资源是否可以复用，如果PSSCH-RSRP小于该阈值，UE可以选择该资源发送数据，复用其他UE预留的资源；如果PSSCH-RSRP不小于该阈值，此时UE和其他UE如果同时使用该资源会受到彼此干扰，UE不可以复用该资源。
在现有技术方案中，UE在多种场景中一般采用相同的阈值来判断PSSCH-RSRP，以下通过举例说明现有技术的缺点：
在D2D通信中，如果网络配置UE使用开环功率控制，UE的发射功率会动态改变，UE的发射功率与UE到基站的链路损耗有关，UE到基站的链路损耗越小，发射功率越小，开环功控机制在V2X通信中被沿用。一个UE接收另一个UE发送的信号的接收功率可以表示为：Pr＝Pt+Gt–PL+Gr，其中，Pr是接收功率，Pt是发射功率，Gt是发射天线增益，Gr是接收天线增益，PL是两个UE之间的链路损耗，如图1所示，(1)假设UE A的发射功率大于UE B的发射功率，当UE B发射信号，UE A的接收功率为Pr(A)时，当UE A发射信号时，UE B的接收功率为Pr(B)时，Pr(A)小于Pr(B)；(2)当UE B发射信号时，UE B的天线增益越大，则UE A的接收功率越大；(3)当UE B发射信号时，UE A的天线增益越大，则UE A的接收功率越大。
如图2所示，UE A监测到某一个资源被UE B指示或者预留了，并且接收的PSSCH-RSRP低于阈值，那么这个资源没有被排除，有可能被UE A选择用于发送数据。假设UE A选择该资源用于发送数据。UE C在该资源上接收UE B的信号，但同时会接收到来自UE A的干扰。假设图(a)中UE B的发射功率或天线增益大于图(b)中UE B的发射功率或者天线增益，如果UE A 在两种情况下使用相同的阈值，那么图(b)中UE A离UE B比图(a)更近时，仍可以复用UE B预留的资源。但对于UE C，图(b)中UE C接收到来自UE B的功率比图(a)中小，且接收到来自UE A的功率比图(a)中大，相当于来自UE B的有用信号变弱了，而来自UE A的干扰变强了，导致UE C的信干比减小、误码率增加和解调性能下降。
如图3所示，UE A监测到某一个资源被UE B指示或者预留了，并且接收的PSSCH-RSRP低于阈值，那么这个资源没有被排除，有可能被UE A选择用于发送数据。假设UE A选择该资源用于发送数据。UE C在该资源上接收UE A的信号，但同时会接收到来自UE B的干扰。假设图(a)中UE A的天线增益大于图(b)中UE A的天线增益，如果UE A在两种情况下使用相同的的阈值，那么图(b)中UE B离UE A比图(a)更近时，仍可以复用UE B预留的资源。但对于UE C，图(b)中UE C接收到来自UE A的功率比图(a)中小，且接收到来自UE B的功率比图(a)中大，相当于来自UE A的有用信号变弱了，而来自UE B的干扰变强了，导致UE C的信干比减小、误码率增加和解调性能下降。
如图4所示，UE A监测到某一个资源被UE B指示或者预留了，并且接收的PSSCH-RSRP低于阈值，那么这个资源没有被排除，有可能被UE A选择用于发送数据。假设UE A选择该资源用于发送数据。UE C在该资源上接收UE A的信号，但同时会接收到来自UE B的干扰。假设图(a)中UE A的发射功率大于图(b)中UE A的发射功率，如果UE A在两种情况下使用相同的的阈值，但对于UE C，图(b)中UE C接收到来自UE A的功率比图(a)中小，相当于来自UE A的有用信号变弱了，而来自UE B的干扰不变，导致UE C的信干比减小、误码率增加和解调性能下降。
发明内容
本发明提供了一种资源选择方法和装置，可以解决现有技术方案中由于使用相同的阈值导致信干比减小、误码率增加和解调性能下降的技术问题。
第一方面，本申请提供了一种资源选择方法，包括：
第一终端首先确定配置信息和第二终端的第二参数信息中的至少一种； 然后根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。其中，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，通过根据不同的参数改变目标阈值来选择资源，从而提高信干比，减少误码率以及提高解调性能。
在一种可能的设计中，所述配置信息为网络侧设备配置的、预配置的、或预先定义的，所述配置信息包含至少一个阈值，所述至少一个阈值为信号功率的阈值，所述功率值为发射功率、或天线增益与发射功率的乘积、或当天线增益和发射功率的单位是dB或dBm时，为天线增益与发射功率之和。
在另一种可能的设计中，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。例如，配置信息包含阈值T1和阈值T2。第一终端的终端类型为V-UE，则选取阈值T1；第一终端的终端类型为P-UE，则选取阈值T2。又如，配置信息包含阈值T1和阈值T2。第二终端的终端类型为V-UE，则选取阈值T1；第二终端的终端类型为P-UE，则选取阈值T2。又如，配置信息包含阈值T1、T2、T3、T4。第一终端的终端类型为V-UE，第二终端的终端类型为V-UE，则选取阈值T1；第一终端的终端类型为V-UE，第二终端的终端类型为P-UE，则选取阈值T2；第一终端的终端类型为P-UE，第二终端的终端类型为V-UE，则选取阈值T3；第一终端的终端类型为P-UE，第二终端的终端类型为P-UE，则选取阈值T4。
在另一种可能的设计中，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第一终端的终端类型，确定所述目标阈值；或根据所述至少一个阈值 中的阈值与该阈值对应的终端类型、和所述第二终端的终端类型，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和目标终端类型组合，确定所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。例如，配置信息包含阈值T1。当第一终端的终端类型为V-UE，则选取阈值T1；当第一终端的终端类型为P-UE，相应的阈值T2＝T1+P2，P2为网络侧设备配置或预先配置或预先定义的参数。又如，配置信息包含阈值T1。当第二终端的终端类型为V-UE，则选取阈值T1；当第二终端的终端类型为P-UE，相应的阈值T2＝T1+P2[dbm]，P2为网络侧设备配置或预先配置或预先定义的参数。又如，配置信息包含阈值T1。第一终端的终端类型为V-UE，第二终端的终端类型为V-UE，则选取阈值T1；当第一终端的终端类型为V-UE、第二终端的终端类型为P-UE时，相应的阈值T2＝T1+P2[dbm]，P2为网络侧设备配置、或预先配置或预先定义的参数。当第一终端的终端类型为P-UE、第二终端的终端类型为P-UE时，相应的阈值T2＝T1+P3[dbm]，P3为网络侧设备配置、或预先配置或预先定义的参数。
在另一种可能的设计中，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；将与所述第一终端的功率值对应的阈值作为所述目标阈值；或将与所述第二终端的功率值对应的阈值作为所述目标阈值；或将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。例如，配置信息包含阈值T1和阈值T2。第一终端的功率值为Pa，则选取阈值T1；第一终端的功率值为Pb，则选取阈值T2。又如，配置信息包含阈值T1和阈值T2。第二终端的功率值为Pa，则选取阈值T1；第二终端的功率值为Pb，则选取阈值T2。又如，配置信息包含阈值T1和阈值T2。第一终端的功率值为Pa，第二终端的功率值为Pa，则选取阈值T1；第一终端的功率值为Pa，第二终端的功率值为Pb，则选取阈值T2。
在另一种可能的设计中，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端 的功率值；根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。例如，配置信息包含阈值T1。第一终端的功率值为Pa，则选取阈值T1；第一终端的功率值为Pb，相应的阈值T2＝T1+P1，P1为网络侧设备配置、或预先配置或预先定义的参数。又如，配置信息包含阈值T1。第二终端的功率值为Pa，则选取阈值T1；第二终端的功率值为Pb，相应的阈值T2＝T1+P1，P1为网络侧设备配置、或预先配置或预先定义的参数。又如，配置信息包含阈值T1。第一终端的功率值为Pa，第二终端的功率值为Pa，则选取阈值T1；第一终端的功率值为Pa，第二终端的功率值为Pb，相应的阈值T2＝T1+P1，P1为网络侧设备配置、或预先配置或预先定义的参数。
在另一种可能的设计中，在所述第二参数信息没有包含第二终端的功率值但包含链路损耗或位置信息情况下，可以根据所述链路损耗或所述位置信息确定所述第二终端的功率值。
在另一种可能的设计中，所述至少一个阈值对应链路损耗，所述第二参数信息用于确定所述第二终端的链路损耗，所述第一参数信息包括所述第一终端的链路损耗；将与所述第一终端的链路损耗对应的阈值作为所述目标阈值；或将与所述第二终端的链路损耗对应的阈值作为所述目标阈值；或将与目标链路损耗组合对应的阈值作为所述目标阈值，所述目标链路损耗组合包括所述第一终端的链路损耗和所述第二终端的链路损耗。
在另一种可能的设计中，所述至少一个阈值对应链路损耗，所述第二参数信息用于确定所述第二终端的链路损耗，所述第一参数信息包括所述第一终端的链路损耗；根据所述至少一个阈值中的阈值与该阈值对应的链路损耗、和所述第一终端的链路损耗，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的链路损耗、和所述第二终端的链路损耗，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的链路损耗、和目标链路损耗组合，确定所述目标阈值，所述目标链路损耗组合包括所述第 一终端的链路损耗和所述第二终端的链路损耗。
在另一种可能的设计中，所述至少一个阈值对应位置信息，所述第二参数信息用于确定所述第二终端的位置信息，所述第一参数信息包括所述第一终端的位置信息；将与所述第一终端的位置信息对应的阈值作为所述目标阈值；或将与所述第二终端的位置信息对应的阈值作为所述目标阈值；或将与目标位置信息组合对应的阈值作为所述目标阈值，所述目标位置信息组合包括所述第一终端的位置信息和所述第二终端的位置信息。
在另一种可能的设计中，所述至少一个阈值对应位置信息，所述第二参数信息用于确定所述第二终端的位置信息，所述第一参数信息包括所述第一终端的位置信息；根据所述至少一个阈值中的阈值与该阈值对应的位置信息、和所述第一终端的位置信息，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的位置信息、和所述第二终端的位置信息，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的位置信息、和目标位置信息组合，确定所述目标阈值，所述目标位置信息组合包括所述第一终端的位置信息和所述第二终端的位置信息。
在另一种可能的设计中，根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应资源的属性；将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。例如，资源的属性1为终端类型1UE、终端类型2UE、终端类型3UE均可以传输资源，则终端类型1UE使用阈值T1；资源的属性2为终端类型1UE和终端类型2UE均可以传输资源，则终端类型1UE使用阈值T2。又如，网络侧设备对每个配置的资源池配置一个阈值，第一终端根据检测的资源所属的资源池，使用相应的阈值。例如，配置资源池1对应的阈值为T1，资源池2对应的阈值为T2。第一终端检测的资源属于资源池1，则使用阈值T1；第一终端检测的资源属于资源池2，则使用阈值T2。
在另一种可能的设计中，根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应拥塞度；将所述信道 或载波的拥塞度对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。例如，网络配置阈值T1和T2，分别对应拥塞程度L1、L2，UE根据当前信道或载波的拥塞程度选择对应的阈值。又如，网络配置阈值T1。拥塞程度L1时，阈值是T1[dbm]；当拥塞程度是Ln时，对应的阈值是T1+Xn[dbm]。进一步的，拥塞度越大，目标阈值越小。
在另一种可能的设计中，数据传输块是区分优先级的，优先级较高的数据传输块可以优先使用资源。因此第一终端除了根据上述各实施例中的因素确定目标阈值之外，还可能结合数据传输块的优先级一同确定目标阈值。
在另一种可能的设计中，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。所述至少一个阈值对应终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。根据所述第二参数信息和/或第一参数信息、和所述至少一个阈值，确定所述目标阈值。比如，网络侧设备配置阈值T1、T2、T3、T4。第一终端的终端类型为V-UE，功率值为Pa，则确定阈值为T1；第一终端的终端类型为P-UE，功率值为Pb，则确定阈值为T2；第一终端的终端类型为V-UE，功率值为Pb，则确定阈值为T3；第一终端的终端类型为P-UE，功率值为Pa，则确定阈值为T4。
第二方面，本申请提供了一种资源选择装置，该资源复用装置被配置为实现上述第一方面中资源复用装置所执行的方法和功能，由硬件/软件实现，其硬件/软件包括与上述功能相应的单元。
第三方面，本申请提供了一种终端，包括：处理器、存储器和通信总线，其中，所述通信总线用于实现所述处理器和存储器之间连接通信，处理器执行所述存储器中存储的程序用于实现上述第一方面提供的一种资源选择方法中的步骤。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需 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是现有技术方案提供的一种终端通信的结构示意图；
图2是现有技术方案提供的一种终端通信的信号干扰的第一示意图；
图3是现有技术方案提供的一种终端通信的信号干扰的第二示意图；
图4是现有技术方案提供的一种终端通信的信号干扰的第三示意图；
图5是本发明实施例提出的一种资源选择方法的流程示意图；
图6是本发明实施例提出的一种资源选择装置的结构示意图；
图7是本发明实施例提出的一种资源复用设备的结构示意图。
具体实施方式
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，而不是全部的实施例。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。
请参考图5，图5是本发明实施例提出的一种资源选择方法的流程示意图。如图所示，本发明实施例中的方法包括：
S501，第一终端确定配置信息和第二终端的第二参数信息中的至少一种。
具体实现中，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。第一终端为选取资源的UE，第二终端为预留资源的UE。在V2X通信中，第二终端需要告知其他终端预留未来某个资源并向其他终端发送第二参数信息，第一终端在选择资源时接收第二终端发送的第二参数信息，从而获取第二终端的第二参数信息。所述配置信息为网络侧设备配置的、预配置的、或预先定义的，所述配置信息包含至少一个阈值。
S502，所述第一终端根据所述配置信息、所述第二参数信息以及第一终 端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。
具体实现中，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型。可以将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
例如，如果不使用开环功率控制，每个UE的发射功率和天线增益是固定的，网络对不同的终端类型或终端类型组合配置不同的阈值。选择资源的UE根据自己的UE类型和/或预留资源的UE的类型选择对应的阈值。比如，选择资源的UE为V-UE时，对应的阈值为T1；选择资源的UE为P-UE时，对应的阈值为T2，以此类推。或者，预留资源的UE为V-UE时，对应的阈值为T1；预留资源的UE为P-UE时，对应的阈值为T2，以此类推。或者，选择资源的UE为V-UE、预留资源的UE为V-UE时，对应的阈值为T1；选择资源的UE为V-UE、预留资源的UE为P-UE时，对应的阈值为T2；选择资源的UE为P-UE、预留资源的UE为P-UE时，对应的阈值为T3，以此类推，其中，V-UE是vehicle(车辆)类型的UE，P-UE是pedestrian(行人)类型的UE。
可选的，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型。可以根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
例如，配置信息包括阈值T1，该阈值T1对应选择资源的UE为V-UE、预留资源的UE为V-UE，而选择资源的UE为V-UE、预留资源的UE为P-UE， 或者其他类型组合，配置信息没有包含对应的阈值，但是网络配置了其他终端类型对应的阈值与阈值T1的关系，可以根据阈值T1和其他终端类型对应的阈值与阈值T1的关系，计算其他终端类型对应阈值。假设阈值T1为目标终端类型组合对应的阈值，Tn为需要确定的其他终端类型对应的阈值。网络配置选择资源的UE为V-UE、预留资源的UE为V-UE时，对应阈值T1，当选择资源UE为V-UE、预留资源UE为P-UE时，对应的阈值T2＝T1+P2[dbm]；当选择资源UE为P-UE、预留资源的UEP-UE时，对应阈值T3＝T1+P3[dbm]；当选择资源UE为P-UE、预留资源UE为V-UE时，对应阈值T4＝T1+P4[dbm]，其中P2、P3、P4是网络侧配置、或预先配置、或预先定义的参数。
又如，假设阈值T1对应选择资源的UE为类型1UE、预留资源的UE为类型2UE，Tn＝εn*T1+(αn*Ptx1+βn*Ptx2+γn*Ptx3+δn*Ptx4)+Pn[dbm]，其中，Ptx1为类型1UE的发射功率，Ptx2为类型2UE的发射功率，Ptx3为选择资源的UE的发射功率，Ptx4为预留资源的UE的发射功率，Pn、αn、βn、γn、δn、εn为网络侧配置的、或预先配置或预先定义的参数。
又如，假设阈值T1对应选择资源的UE为类型1UE、预留资源的UE为类型2UE，Tn＝εn*T1+(αn*G1+βn*G2+γn*G3+δn*G4)+Pn[dbm]，其中，G1为类型1UE的天线增益，G2为类型2UE的天线增益，G3为选择资源UE的天线增益，G4为预留资源的UE的天线增益，Pn、αn、βn、γn、δn、εn为网络侧配置、或预先配置或预先定义的参数。
类似的，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值。可以将与所述第一终端的功率值对应的阈值作为所述目标阈值；或将与所述第二终端的功率值对应的阈值作为所述目标阈值；或将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值，其中，所述功率值为发射功率、或天线增益与发射功率的乘积、或天线增益与发射功率之和。
例如，当发射功率与天线增益的单位是dB或dBm时，功率值为发射功率与天线增益之和。比如，选择资源的UE的功率值为Pa时，对应的阈值为T1；选择资源的UE的功率值为Pb时，对应的阈值为T2，以此类推。或者， 预留资源的UE的功率值为Pa时，对应的阈值为T1；预留资源的UE的功率值为Pb时，对应的阈值为T2，以此类推。或者，选择资源的UE的功率值为Pa、预留资源的UE的功率值为Pa时，对应的阈值为T1；选择资源的UE的功率值为Pa、预留资源的UE的功率值为Pb时，对应的阈值为T2；选择资源的UE的功率值为Pb、预留资源的UE的功率值为Pb时，对应的阈值为T3，以此类推。
类似的，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值。根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
可选的，第一终端可以根据第一终端的功率值、天线增益和终端类型中的至少一种和第二终端的功率值、天线增益和终端类型中的至少一种，确定目标阈值，因此在所述第二参数信息没有包含第二终端的功率值但包含链路损耗或位置信息情况下，可以根据所述链路损耗或所述位置信息确定所述第二终端的功率值，进而确定目标阈值。例如，当第二终端使用开环功率控制，第二终端的发射功率与第二终端到基站之间的链路损耗有关，第二终端不直接指示其发射功率，而是在发送的第二参数信息中包含链路损耗，根据链路损耗和预先配置的网络配置参数确定第二终端的发射功率，Ptx＝min{PMAX,10log10(M)+P0+α·PL}，其中，PL是链路损耗，Pmax是网络侧设备配置、或预先配置或预先定义的最大功率，M是资源在频域上所占的带宽，P0和α为网络侧配置的、或预先配置或预先定义的参数。
又如，由于第二终端的链路损耗和第二终端与基站之间的位置信息有关。因此，UE可以不直接指示其发射功率，而是在发送的第二参数信息中包含位置信息，首先根据位置信息和预先配置的第一网络配置参数确定第二终端的链路损耗，然后根据链路损耗和预先配置的第二网络配置参数确定第二终 端的发射功率，其中，位置信息可以包括第二终端与基站的距离或第二终端的GPS(Global Positioning System，全球定位系统)定位信息。
可选的，可以根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应资源的属性，将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。
例如，在V2X通信中，网络可以配置某种类型终端所使用的资源，不同类型的终端传输所使用的资源可能有重复。第一终端进行资源选择时，监测到某一资源被第二终端预留，如果该资源为第一终端类型和第二终端类型所共同使用的重叠资源，则使用阈值T1；或者如果该资源只能为第一终端类型所使用，则使用阈值T2。又如，当网络配置资源为类型1UE、类型2UE和类型3UE均可以进行传输的资源时，类型1UE使用阈值T1；当网络配置资源为类型1UE和类型2UE可以进行传输的资源时，类型1UE使用阈值T2；当网络配置资源为类型1UE传输的资源时，类型1UE使用阈值T3。又如，网络侧设备对每个配置的资源池配置一个阈值，第一终端根据检测的资源所属的资源池，使用相应的阈值。例如，配置资源池1对应的阈值为T1，资源池2对应的阈值为T2。第一终端检测的资源属于资源池1，则使用阈值T1；第一终端检测的资源属于资源池2，则使用阈值T2。
可选的，根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应拥塞度；可以将所述信道或载波的拥塞度对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。
例如，对于一定数量的资源，当UE的需要传输的数量越多，网络的拥塞度就越高，V2X通信中可以使用拥塞控制，当拥塞发生时，UE降低发射功率，第一终端在判断某一预留的资源是否应当被排除的阈值也应随着发射功率的变化而变化。网络配置阈值T1和T2，分别对应拥塞程度L1、L2，UE根据当前信道或载波的拥塞程度选择对应的阈值。当拥塞程度为L1时，第一终端使用的阈值是T1；当拥塞程度为L2时，UE使用的阈值为T2。又 如，网络配置拥塞程度L1对应的阈值是T1[dbm],当拥塞程度是Ln时，对应的阈值是T1+Xn[dbm]。UE根据当前信道或载波的拥塞程度和T1，可以确定相应的阈值。
可选的，可以根据数据传输块的优先级，确定所述目标阈值。具体的，数据传输块是区分优先级的，优先级较高的数据传输块可以优先使用资源。其中，数据传输块的优先级信息可以在SA中指示。因此，第一终端除了根据上述各实施例中的因素确定目标阈值之外，还可能结合数据传输块的优先级一同确定目标阈值。
例如，在上述通过终端类型确定目标阈值时，网络配置选择资源的UE为V-UE、预留资源的UE为V-UE时，对应的阈值为T11、T12、T13和T14；选择资源的UE为V-UE、预留资源的UE为P-UE时，对应的阈值为T21、T22、T23和T24；选择资源的UE为P-UE、预留资源的UE为P-UE时，对应的阈值为T31、T32、T33和T34，以此类推。当选择资源的UE为V-UE、预留资源的UE为P-UE时，首先确定对应阈值T21、T22、T23和T24，然后根据数据传输块的优先级，从阈值T21、T22、T23和T24中选择对应的阈值。其他确定目标阈值的方法与此类似。
在通过上述方法确定目标阈值之后，当物理链路共享信道的参考信号接收功率小于所述接收功率阈值时，UE可以选择该资源发送数据，复用第二终端预留的资源；当物理链路共享信道的参考信号接收功率不小于所述接收功率阈值时，此时第一终端和第二终端如果同时使用该资源会受到彼此干扰，UE不可以复用该资源。
在本发明实施例中，第一终端首先确定配置信息和第二终端的第二参数信息中的至少一种；然后根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，最后根据目标阈值进行资源选择。通过根据不同的参数改变目标阈值来选择资源，从而提高信干比，减少误码率以及提高解调性能。
请参考图6，图6是本发明实施例提供的一种资源选择装置的结构示意图。如图所示，本发明实施例中的装置包括：
信息确定模块601，用于确定配置信息和第二终端的第二参数信息中的至少一种。
具体实现中，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。第一终端为选取资源的UE，第二终端为预留资源的UE。在V2X通信中，第二终端需要告知其他终端预留未来某个资源并向其他终端发送第二参数信息，第一终端在选择资源时接收第二终端发送的第二参数信息，从而获取第二终端的第二参数信息。所述配置信息为网络侧设备配置的、预配置的、或预先定义的，所述配置信息包含至少一个阈值。
阈值确定模块602，用于根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。
具体实现中，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型。可以将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
例如，如果不使用开环功率控制，每个UE的发射功率和天线增益是固定的，网络对不同的终端类型或终端类型组合配置不同的阈值。选择资源的UE根据自己的UE类型和/或预留资源的UE的类型选择对应的阈值。比如，选择资源的UE为V-UE时，对应的阈值为T1；选择资源的UE为P-UE时，对应的阈值为T2，以此类推。或者，预留资源的UE为V-UE时，对应的阈值为T1；预留资源的UE为P-UE时，对应的阈值为T2，以此类推。或者，选择资源的UE为V-UE、预留资源的UE为V-UE时，对应的阈值为T1；选择资源的UE为V-UE、预留资源的UE为P-UE时，对应的阈值为T2；选择资源的UE为P-UE、预留资源的UE为P-UE时，对应的阈值为T3，以此类推，其中，V-UE是vehicle(车辆)类型的UE，P-UE是pedestrian(行人) 类型的UE。
可选的，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型。可以根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
例如，配置信息包括阈值T1，该阈值T1对应选择资源的UE为V-UE、预留资源的UE为V-UE，而选择资源的UE为V-UE、预留资源的UE为P-UE，或者其他类型组合，配置信息没有包含对应的阈值，但是网络配置了其他终端类型对应的阈值与阈值T1的关系，可以根据阈值T1和其他终端类型对应的阈值与阈值T1的关系，计算其他终端类型对应阈值。假设阈值T1为目标终端类型组合对应的阈值，Tn为需要确定的其他终端类型对应的阈值。网络配置选择资源的UE为V-UE、预留资源的UE为V-UE时，对应阈值T1，当选择资源UE为V-UE、预留资源UE为P-UE时，对应的阈值T2＝T1+P2[dbm]；当选择资源UE为P-UE、预留资源的UEP-UE时，对应阈值T3＝T1+P3[dbm]；当选择资源UE为P-UE、预留资源UE为V-UE时，对应阈值T4＝T1+P4[dbm]，其中P2、P3、P4是网络侧配置的、或预先配置、或预先定义的参数。
又如，假设阈值T1对应选择资源的UE为类型1UE、预留资源的UE为类型2UE，Tn＝εn*T1+(αn*Ptx1+βn*Ptx2+γn*Ptx3+δn*Ptx4)+Pn[dbm]，其中，Ptx1为类型1UE的发射功率，Ptx2为类型2UE的发射功率，Ptx3为选择资源的UE的发射功率，Ptx4为预留资源的UE的发射功率，Pn、αn、βn、γn、δn、εn为网络侧配置的、或预先配置或预先定义的参数。
又如，假设阈值T1对应选择资源的UE为类型1UE、预留资源的UE为类型2UE，Tn＝εn*T1+(αn*G1+βn*G2+γn*G3+δn*G4)+Pn[dbm]，其中，G1为类型1UE的天线增益，G2为类型2UE的天线增益G3为选择资源UE的天线增益，G4为预留资源的UE的天线增益，Pn、αn、βn、γn、δn、 εn为网络侧配置、或预先配置或预先定义的参数。
类似的，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值。可以将与所述第一终端的功率值对应的阈值作为所述目标阈值；或将与所述第二终端的功率值对应的阈值作为所述目标阈值；或将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值，其中，所述功率值为发射功率、或天线增益与发射功率的乘积、或天线增益与发射功率之和。
例如，当发射功率与天线增益的单位是dB或dBm时，功率值为发射功率与天线增益之和。比如，选择资源的UE的功率值为Pa时，对应的阈值为T1；选择资源的UE的功率值为Pb时，对应的阈值为T2，以此类推。或者，预留资源的UE的功率值为Pa时，对应的阈值为T1；预留资源的UE的功率值为Pb时，对应的阈值为T2，以此类推。或者，选择资源的UE的功率值为Pa、预留资源的UE的功率值为Pa时，对应的阈值为T1；选择资源的UE的功率值为Pa、预留资源的UE的功率值为Pb时，对应的阈值为T2；选择资源的UE的功率值为Pb、预留资源的UE的功率值为Pb时，对应的阈值为T3，以此类推。
类似的，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值。根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
可选的，第一终端可以根据第一终端的功率值、天线增益和终端类型中的至少一种和第二终端的功率值、天线增益和终端类型中的至少一种，确定目标阈值，因此在所述第二参数信息没有包含第二终端的功率值但包含链路损耗或位置信息情况下，可以根据所述链路损耗或所述位置信息确定所述第 二终端的功率值，进而确定目标阈值。例如，当第二终端使用开环功率控制，第二终端的发射功率与第二终端到基站之间的链路损耗有关，第二终端不直接指示其发射功率，而是在发送的第二参数信息中包含链路损耗，根据链路损耗和预先配置的网络配置参数确定第二终端的发射功率，Ptx＝min{PMAX,10log10(M)+P0+α·PL}，其中，PL是链路损耗，Pmax是网络侧设备配置、或预先配置或预先定义的最大功率，M是资源在频域上所占的带宽，P0和α为网络侧配置的、或预先配置或预先定义的参数。
又如，由于第二终端的链路损耗和第二终端与基站之间的位置信息有关。因此，UE可以不直接指示其发射功率，而是在发送的第二参数信息中包含位置信息，首先根据位置信息和预先配置的第一网络配置参数确定第二终端的链路损耗，然后根据链路损耗和预先配置的第二网络配置参数确定第二终端的发射功率，其中，位置信息可以包括第二终端与基站的距离或第二终端的GPS(Global Positioning System，全球定位系统)定位信息。
可选的，可以根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应资源的属性，可以将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。
例如，在V2X通信中，网络可以配置某种类型终端所使用的资源，不同类型的终端传输所使用的资源可能有重复。第一终端进行资源选择时，监测到某一资源被第二终端预留，如果该资源为第一终端类型和第二终端类型所共同使用的重叠资源，则使用阈值T1；或者如果该资源只能为第一终端类型所使用，则使用阈值T2。又如，当网络配置资源为类型1UE、类型2UE和类型3UE均可以进行传输的资源时，类型1UE使用阈值T1；当网络配置资源为类型1UE和类型2UE可以进行传输的资源时，类型1UE使用阈值T2；当网络配置资源为类型1UE传输的资源时，类型1UE使用阈值T3。又如，网络侧设备对每个配置的资源池配置一个阈值，第一终端根据检测的资源所属的资源池，使用相应的阈值。例如，配置资源池1对应的阈值为T1，资源池2对应的阈值为T2。第一终端检测的资源属于资源池1，则使用阈值T1； 第一终端检测的资源属于资源池2，则使用阈值T2。
可选的，根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。进一步的，所述至少一个阈值对应拥塞度；可以将所述信道或载波的拥塞度对应的阈值作为所述目标阈值；或根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。
例如，对于一定数量的资源，当UE的需要传输的数量越多，网络的拥塞度就越高，V2X通信中可以使用拥塞控制，当拥塞发生时，UE降低发射功率，第一终端在判断某一预留的资源是否应当被排除的阈值也应随着发射功率的变化而变化。网络配置阈值T1和T2，分别对应拥塞程度L1、L2，UE根据当前信道或载波的拥塞程度选择对应的阈值。当拥塞程度为L1时，第一终端使用的阈值是T1；当拥塞程度为L2时，UE使用的阈值为T2。又如，网络配置拥塞程度L1对应的阈值是T1[dbm],当拥塞程度是Ln时，对应的阈值是T1+Xn[dbm]。UE根据当前信道或载波的拥塞程度和T1，可以确定相应的阈值。
可选的，可以根据数据传输块的优先级，确定所述目标阈值。具体的，数据传输块是区分优先级的，优先级较高的数据传输块可以优先使用资源。其中，数据传输块的优先级信息可以在SA中指示。因此，第一终端除了根据上述各实施例中的因素确定目标阈值之外，还可能结合数据传输块的优先级一同确定目标阈值。
例如，在上述通过终端类型确定目标阈值时，网络配置选择资源的UE为V-UE、预留资源的UE为V-UE时，对应的阈值为T11、T12、T13和T14；选择资源的UE为V-UE、预留资源的UE为P-UE时，对应的阈值为T21、T22、T23和T24；选择资源的UE为P-UE、预留资源的UE为P-UE时，对应的阈值为T31、T32、T33和T34，以此类推。当选择资源的UE为V-UE、预留资源的UE为P-UE时，首先确定对应T21、T22、T23和T24，然后根据数据传输块的优先级，从T21、T22、T23和T24中选择对应的阈值。其他确定目标阈值的方法与此类似。
在通过上述方法确定目标阈值之后，当物理链路共享信道的参考信号接收功率小于所述接收功率阈值时，UE可以选择该资源发送数据，复用第二 终端预留的资源；当物理链路共享信道的参考信号接收功率不小于所述接收功率阈值时，此时第一终端和第二终端如果同时使用该资源会受到彼此干扰，UE不可以复用该资源。
在本发明实施例中，第一终端首先确定配置信息和第二终端的第二参数信息中的至少一种；然后根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，最后根据目标阈值进行资源选择。通过根据不同的参数改变目标阈值来选择资源，从而提高信干比，减少误码率以及提高解调性能。
请继续参考图7，图7是本发明提出的一种资源复用设备的结构示意图。如图所示，该设备可以包括：至少一个处理器701，例如CPU，至少一个通信接口702，至少一个存储器703和至少一个通信总线704。其中，通信总线704用于实现这些组件之间的连接通信。其中，本发明实施例中设备的通信接口702用于与其他节点设备进行信令或数据的通信。存储器703可以是高速RAM存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器703可选的还可以是至少一个位于远离前述处理器701的存储装置。存储器703中存储一组程序代码，且处理器701执行所述存储器703中存储的程序，执行上述资源复用装置所执行的方法、或实现上述资源复用装置所实现的功能。
需要说明的是，对于前述的各个方法实施例，为了简单描述，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，某一些步骤可以采用其他顺序或者同时进行。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细描述的部分，可以参见其他实施例的相关描述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可 读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的内容下载方法及相关设备、系统进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (42)

  1. 一种资源选择方法，其特征在于，所述方法包括：
    第一终端确定配置信息和第二终端的第二参数信息中的至少一种；
    所述第一终端根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。
  2. 如权利要求1所述的方法，其特征在于，所述配置信息为网络侧设备配置的、预配置的、或预先定义的。
  3. 如权利要求1所述的方法，其特征在于，所述配置信息包含至少一个阈值。
  4. 如权利要求1所述的方法，其特征在于，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。
  5. 如权利要求3所述的方法，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值包括：
    将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或
    将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或
    将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  6. 如权利要求3所述的方法，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值包括：
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第一终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第二终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和第二终端类型组合，确定所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  7. 如权利要求3所述的方法，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值包括：
    将与所述第一终端的功率值对应的阈值作为所述目标阈值；或
    将与所述第二终端的功率值对应的阈值作为所述目标阈值；或
    将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
  8. 如权利要求3所述的方法，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值包括：
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
  9. 如权利要求7或8所述的方法，其特征在于，所述第二参数信息用于根据链路损耗或位置信息确定所述第二终端的功率值。
  10. 如权利要求3所述的方法，其特征在于，所述根据所述配置信息、所述第二参数信息以及所述第一参数信息中的至少一种，确定目标阈值包括：
    根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。
  11. 如权利要求10所述的方法，其特征在于，所述至少一个阈值对应资源的类型；
    所述根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值包括：
    将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。
  12. 如权利要求3所述的方法，其特征在于，所述根据所述配置信息、所述第二参数信息以及所述第一参数信息中的至少一种，确定目标阈值包括：
    根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。
  13. 如权利要求12所述的方法，其特征在于，所述至少一个阈值对应拥 塞度；
    所述根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值包括：
    将所述信道或载波的拥塞度对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。
  14. 如权利要求5-13任意一项所述的方法，其特征在于，所述根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值包括：
    根据数据传输块的优先级，确定所述目标阈值。
  15. 一种资源选择装置，其特征在于，所述装置包括：
    信息确定模块，用于确定配置信息和第二终端的第二参数信息中的至少一种；
    阈值确定模块，用于根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。
  16. 如权利要求15所述的装置，其特征在于，所述配置信息为网络侧设备配置的、预配置的、或预先定义的。
  17. 如权利要求15所述的装置，其特征在于，所述配置信息包含至少一个阈值。
  18. 如权利要求15所述的装置，其特征在于，所述第二参数信息用于确定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。
  19. 如权利要求17所述的装置，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述阈值确定模块具体用于：
    将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或
    将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或
    将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  20. 如权利要求17所述的装置，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述阈值确定模块具体用于：
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第一终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第二终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和目标终端类型组合，确定所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  21. 如权利要求17所述的装置，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述阈值确定模块具体用于：
    将与所述第一终端的功率值对应的阈值作为所述目标阈值；或
    将与所述第二终端的功率值对应的阈值作为所述目标阈值；或
    将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组 合包括所述第一终端的功率值和所述第二终端的功率值。
  22. 如权利要求17所述的装置，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述阈值确定模块具体用于：
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
  23. 如权利要求21或22所述的装置，其特征在于，所述第二参数信息用于根据链路损耗或位置信息确定所述第二终端的功率值。
  24. 如权利要求17所述的装置，其特征在于，所述阈值确定模块具体用于：
    根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。
  25. 如权利要求24所述的装置，其特征在于，所述至少一个阈值对应资源的属性；
    所述阈值确定模块具体用于：
    将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。
  26. 如权利要求17所述的装置，其特征在于，所述阈值确定模块具体用于：
    根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。
  27. 如权利要求26所述的装置，其特征在于，所述至少一个阈值对应拥塞度；
    所述阈值确定模块具体用于：
    将所述信道或载波的拥塞度对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。
  28. 如权利要求19-27任意一项所述的装置，其特征在于，所述阈值确定模块具体用于：
    根据数据传输块的优先级，确定所述目标阈值。
  29. 一种资源复用设备，其特征在于，包括：存储器、通信总线以及处理器，其中，所述存储器用于存储程序代码，所述处理器用于调用所述程序代码，执行以下操作：
    确定配置信息和第二终端的第二参数信息中的至少一种；
    根据所述配置信息、所述第二参数信息以及第一终端的第一参数信息中的至少一种，确定目标阈值，所述目标阈值用于所述第一终端进行资源选择。
  30. 如权利要求29所述的设备，其特征在于，所述配置信息为网络侧设备配置的、预配置的、或预先定义的。
  31. 如权利要求29所述的设备，其特征在于，所述配置信息包含至少一个阈值。
  32. 如权利要求29所述的设备，其特征在于，所述第二参数信息用于确 定所述第二终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种，所述第一参数信息包括所述第一终端的终端类型、功率值、位置信息、天线增益以及链路损耗中的至少一种。
  33. 如权利要求31所述的设备，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述处理器还用于执行如下操作：
    将与所述第一终端的终端类型对应的阈值作为所述目标阈值；或
    将与所述第二终端的终端类型对应的阈值作为所述目标阈值；或
    将与目标终端类型组合对应的阈值作为所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  34. 如权利要求31所述的设备，其特征在于，所述至少一个阈值对应终端类型，所述第二参数信息用于确定所述第二终端的终端类型，所述第一参数信息包括所述第一终端的终端类型；
    所述处理器还用于执行如下操作：
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第一终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和所述第二终端的终端类型，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的终端类型、和目标终端类型组合，确定所述目标阈值，所述目标终端类型组合包括所述第一终端的终端类型和所述第二终端的终端类型。
  35. 如权利要求31所述的设备，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述处理器还用于执行如下操作：
    将与所述第一终端的功率值对应的阈值作为所述目标阈值；或
    将与所述第二终端的功率值对应的阈值作为所述目标阈值；或
    将与目标功率值组合对应的阈值作为所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
  36. 如权利要求31所述的设备，其特征在于，所述至少一个阈值对应功率值，所述第二参数信息用于确定所述第二终端的功率值，所述第一参数信息包括所述第一终端的功率值；
    所述处理器还用于执行如下操作：
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第一终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和所述第二终端的功率值，确定所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的功率值、和目标功率值组合，确定所述目标阈值，所述目标功率值组合包括所述第一终端的功率值和所述第二终端的功率值。
  37. 如权利要求35或36所述的设备，其特征在于，所述第二参数信息用于根据链路损耗或位置信息确定所述第二终端的功率值。
  38. 如权利要求31所述的设备，其特征在于，所述处理器还用于执行如下操作：
    根据所述第一终端检测的资源的属性和所述至少一个阈值，确定所述目标阈值。
  39. 如权利要求38所述的设备，其特征在于，所述至少一个阈值对应资源的属性；
    所述处理器还用于执行如下操作：
    将所述第一终端检测的资源的属性对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的资源的属性、和所述第一终端检测的资源的属性，确定所述目标阈值。
  40. 如权利要求31所述的设备，其特征在于，所述处理器还用于执行如下操作：
    根据信道或载波的拥塞度和所述至少一个阈值，确定所述目标阈值。
  41. 如权利要求40所述的设备，其特征在于，所述至少一个阈值对应拥塞度；
    所述处理器还用于执行如下操作：
    将所述信道或载波的拥塞度对应的阈值作为所述目标阈值；或
    根据所述至少一个阈值中的阈值与该阈值对应的拥塞度、和所述信道或载波的拥塞度，确定所述目标阈值。
  42. 如权利要求33-41任意一项所述的设备，其特征在于，所述处理器还用于执行如下操作：
    根据数据传输块的优先级，确定所述目标阈值。
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