WO2017156790A1 - 用于d2d通信的方法和d2d设备 - Google Patents

用于d2d通信的方法和d2d设备 Download PDF

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Publication number
WO2017156790A1
WO2017156790A1 PCT/CN2016/076807 CN2016076807W WO2017156790A1 WO 2017156790 A1 WO2017156790 A1 WO 2017156790A1 CN 2016076807 W CN2016076807 W CN 2016076807W WO 2017156790 A1 WO2017156790 A1 WO 2017156790A1
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WO
WIPO (PCT)
Prior art keywords
resource
resource pool
current
threshold
pool
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PCT/CN2016/076807
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English (en)
French (fr)
Inventor
曾元清
Original Assignee
广东欧珀移动通信有限公司
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Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/076807 priority Critical patent/WO2017156790A1/zh
Priority to PCT/CN2016/079456 priority patent/WO2017156818A1/zh
Priority to PCT/CN2016/081878 priority patent/WO2017156856A1/zh
Priority to SG11201807762WA priority patent/SG11201807762WA/en
Priority to CN202110935571.4A priority patent/CN113709808A/zh
Priority to EP16894134.2A priority patent/EP3413649B1/en
Priority to AU2016397908A priority patent/AU2016397908B2/en
Priority to CN201680065048.8A priority patent/CN108353403B/zh
Priority to CA3016652A priority patent/CA3016652C/en
Priority to PCT/CN2016/094952 priority patent/WO2017156973A1/zh
Priority to BR112018068843A priority patent/BR112018068843A2/pt
Priority to RU2018136604A priority patent/RU2718431C1/ru
Priority to JP2018548139A priority patent/JP6814815B2/ja
Priority to MX2018011262A priority patent/MX2018011262A/es
Priority to KR1020187026128A priority patent/KR20180124862A/ko
Priority to TW106109054A priority patent/TWI727018B/zh
Priority to TW106109055A priority patent/TWI720156B/zh
Priority to TW106109053A priority patent/TWI710276B/zh
Priority to TW106109058A priority patent/TWI727019B/zh
Publication of WO2017156790A1 publication Critical patent/WO2017156790A1/zh
Priority to US16/122,352 priority patent/US11076431B2/en
Priority to HK18111491.1A priority patent/HK1252252A1/zh
Priority to JP2020211292A priority patent/JP7116775B6/ja
Priority to US17/347,191 priority patent/US11647547B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0215Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/09Management thereof
    • H04W28/0958Management thereof based on metrics or performance parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • Embodiments of the present invention relate to the field of wireless communications, and, more particularly, to a method for device to device (D2D) communication and a D2D device.
  • D2D device to device
  • D2D resources for D2D communication can have two modes of allocation: one is a network-based resource allocation mode, and the other is a D2D device autonomous allocation mode.
  • the network-based resource allocation method is that the base station allocates D2D resources. This allocation method is mainly applicable to the case of cellular network coverage.
  • the D2D device autonomously allocates D2D resources by the D2D device. For example, the D2D device randomly selects D2D resources based on a predetermined resource allocation pattern. This allocation method can be applied to both cellular network coverage and the application. The case of cellular network coverage.
  • the D2D device or the network cannot know the usage of the D2D resource, which is easy.
  • the use of D2D resources is unreasonable.
  • the D2D device or the network cannot know the usage of the D2D resource, which may cause the D2D device to use the D2D resource unevenly, causing some D2D resource load to be large, and some D2D resource load is light.
  • two or more D2D devices may simultaneously transmit the D2D signal on the overlapping resources, and the mutual interference is serious.
  • the present application provides a method for D2D communication and a D2D device to solve the problem that the D2D resource usage cannot be known when the D2D device allocates resources autonomously.
  • a method for D2D communication including: determining, by a D2D device, a target resource of a current resource pool, wherein the current resource pool is any one of resource pools for D2D communication,
  • the target resource is an occupied resource in the current resource pool or a conflicting resource in the current resource pool, where the conflict resource is a resource that is simultaneously occupied by multiple D2D signals in the current resource pool.
  • the D2D device determines the location according to the target resource a resource usage parameter of the current resource pool, where the current resource pool is any one of the resource pools used for D2D communication, and the resource usage parameter is used to indicate the occupied resource and the current resource.
  • the ratio of the total resources of the pool, or the resource usage parameter is used to indicate the ratio of the conflicting resources to the total resources of the current resource pool.
  • the D2D device can conveniently obtain the usage of the current resource pool, thereby providing reference for subsequent load balancing and conflict processing.
  • the method further includes: when the resource usage parameter is greater than the first threshold, the D2D device reports, to the base station, an event that the resource usage parameter is greater than the first threshold, so that The base station reconfigures resources of the current resource pool.
  • the resource usage parameter of the current resource pool is greater than the first threshold.
  • the resource configuration of the resource pool is unreasonable.
  • the D2D device reports that the resource usage parameter is greater than the first threshold, and then the base station uses the current resource pool.
  • the reconfiguration can make the use of D2D resources more reasonable.
  • the method further includes: the D2D device reselecting the resource pool if the resource usage parameter is greater than a first threshold.
  • the first threshold is configured for the current resource pool.
  • the D2D device detects that the resource usage parameter of the current resource pool is greater than the first threshold, the D2D device reselects the resource pool, which can make the use of the D2D resource more reasonable.
  • the conflicting resource is a resource that is occupied by multiple D2D signals in the current resource pool, and may also be expressed as: the conflicting resource is a group of D2D devices in the current resource pool. Resources occupied at the same time.
  • a resource pool for D2D communication can include multiple resource pools.
  • the first threshold may indicate that the resource of the current resource pool is seriously insufficient or the first threshold may indicate a serious conflict of resources in the current resource pool.
  • the reconfiguring the resources of the current resource pool by the base station may be that the base station adds resources to the current resource pool.
  • the method further includes: when the resource usage parameter is less than a first threshold, and greater than a second threshold, the D2D device reporting, to the base station, that the resource usage parameter is smaller than the first And an event that is greater than the second threshold, so that the base station indicates that the D2D device in the current resource pool uses resources in the current resource pool in a collision avoidance manner.
  • Resources in the source pool can reduce resource conflicts in the current resource pool.
  • the method further includes: when the resource usage parameter is less than a first threshold, and greater than a second threshold, the D2D device sends an indication to other D2D devices in the current resource pool. And the indication information is used to indicate that the other D2D device uses the resources in the current resource pool in a conflict avoidance manner.
  • the resource conflict situation in the current resource pool can be reduced.
  • the method further includes: when the resource usage parameter is less than a first threshold, and greater than a second threshold, the D2D device reporting, to the base station, that the resource usage parameter is smaller than the first And an event that is greater than the second threshold, so that the base station reconfigures resources in the current resource pool.
  • the D2D device reports that the resource usage parameter is smaller than the first threshold and is greater than the second threshold, and the base station reconfigures the resources in the current resource pool, which can alleviate the resources in the current resource pool. Occupied situation, or reduce the degree of conflict of resources in the current resource pool.
  • the D2D device determines a resource usage parameter of the current resource pool, where the D2D device receives scheduling information sent by another D2D device on the preset resource of the current resource pool, where the scheduling information is a location for indicating a resource carrying data of the other D2D device in the current resource pool; the D2D device determining the resource usage parameter according to the scheduling information.
  • the D2D device determines resource usage parameters of a current resource pool, including: the D2D device detects energy of a D2D signal that uses resources in the current resource pool; and the D2D device is configured according to the D2D The energy of the signal determines the resource usage parameters.
  • the energy of the D2D signal can be the energy of the D2D signal on a specific time-frequency resource, or the power of the D2D signal.
  • the resource pool for D2D communication includes a plurality of resource pools that are partitioned by time and/or frequency for resources for D2D communication.
  • FIG. 1 is a schematic flowchart of a method for D2D communication according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a D2D device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a D2D device according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the D2D device includes but is not limited to a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal, a Mobile Telephone, and a mobile phone.
  • UE User Equipment
  • MS Mobile Station
  • RAN Radio Access Network
  • the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or For "cellular" phones, computers with wireless communication capabilities, etc., the user devices can also be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices.
  • RAN Radio Access Network
  • D2D communication may refer to vehicle to vehicle (V2V) communication, or V2X communication.
  • V2X communication can refer to any device with wireless receiving and transmitting capabilities, such as but not limited to slow moving wireless devices, fast moving in-vehicle devices, or network control nodes with wireless transmit and receive capabilities.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved Node B (eNB or eNB in LTE).
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved Node B
  • LTE Long Term Evolution
  • the e-NodeB may also be an access point for providing an access service in the 5G, which is not limited by the embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for D2D communication according to an embodiment of the present invention.
  • the method of Figure 1 includes:
  • the D2D device determines the target resource of the current resource pool, where the current resource pool is any resource pool in the resource pool for D2D communication, and the target resource is the occupied resource in the current resource pool. Or the conflicting resource in the current resource pool, where the conflicting resource is a resource that is simultaneously occupied by multiple D2D signals in the current resource pool.
  • the D2D device determines, according to the target resource, a resource usage parameter of the current resource pool, where the current resource pool is any one of resource pools used for D2D communication, and the resource usage parameter is used by the resource usage parameter. And indicating the ratio of the occupied resource to the total resource of the current resource pool, or the resource usage parameter is used to indicate a ratio of the conflicting resource to a total resource of the current resource pool.
  • the D2D device detects the resource usage parameter of the current resource pool, and performs resource reconfiguration or reselects a new resource pool for the detection result, so that the usage mode of the D2D resource is more reasonable.
  • the D2D available resources may be divided into different resource pools by time and/or frequency, and the D2D device may select one resource pool first before D2D communication.
  • the resource usage parameter of the resource pool may refer to a ratio of the conflicting resource in the resource pool to the total resource of the resource pool (hereinafter referred to as a resource conflict probability); the resource usage parameter of the resource pool may refer to the resource pool.
  • the ratio of the occupied resources to the total resources of the resource pool hereinafter referred to as the resource occupancy probability).
  • the first threshold P1 and the second threshold P2 may be set for each resource pool configuration corresponding resource conflict probability.
  • the resource conflict probability of a resource pool is greater than P1, it indicates that the conflict or the situation of the resource pool is very serious.
  • the resource conflict probability of a resource pool is less than P1 and greater than P2, the resource pool can be indicated. Conflict situations or occupations are more serious.
  • P1 or P2 corresponding to different resource pools may be the same or different.
  • P1 and P2 may be configured for each resource pool, or one of P1 and P2 may be configured for each resource pool. The following takes an example of configuring P1 and P2 in each resource pool as an example.
  • the D2D device when the D2D device detects that the resource collision probability/resource occupancy probability of a resource pool is greater than P2 but less than P1, the D2D device may report the event to the base station over the air interface. A series of measures can then be performed by the base station or D2D device to improve the occupancy or collision of resources in the resource pool.
  • the base station/D2D device when the base station/D2D device detects a resource pool on the air interface When the source collision probability resource occupancy probability is greater than P1, the base station/D2D device may initiate the process of resource pool reallocation/resource pool reselection.
  • the base station may divide the entire D2D available resources into different resource pools, and configure corresponding P1 and P2 for each resource pool.
  • the D2D resource pool may be pre-allocated, ie, the D2D available resources are pre-divided into different resource pools. Further, P1 and P2 corresponding to each resource pool may also be preset.
  • the following describes the detection method of resource conflict probability/resource occupancy probability.
  • the sending end before sending data, may be configured to send scheduling information in a preset resource of the resource pool, which may also be referred to as a scheduling assignment.
  • the scheduling header can indicate to the receiving end the location of the resource carrying the data. In this way, the receiving end can receive data according to the scheduling information to the corresponding location.
  • the scheduling information may also include modem information of the data, and the like. Therefore, in the process of receiving the scheduling information by the receiving end, it can be known which resources are occupied or which resources conflict.
  • resource collision probability and resource occupancy probability may also be detected by means of spectrum energy sensing.
  • the device of the D2D can also determine whether the current resource is occupied by using the size of the spectrum energy on the resource corresponding to the resource pool, and/or whether the resource conflicts.
  • the receiving end is only in the receiving state and does not transmit a signal, so that the reliability of the detection can be ensured.
  • the manner in which the D2D device detects the resource conflict probability/resource occupancy probability of the resource pool may be configured by the base station or may be preset.
  • the detection mode in the case of cellular coverage, the detection mode can be configured by the base station; in the case of no cellular coverage, the detection mode can be preset.
  • the following describes the corresponding processing method after detecting the resource collision probability/resource occupancy probability.
  • the D2D device may report the event to the base station in the case of cellular network coverage. After receiving the report, the base station can reconfigure the D2D resources of the resource pool, for example, allocate more resources for the resource pool. Alternatively, the base station can also indicate that the resource is being used.
  • the source pool's D2D device performs D2D communication in a collision avoidance manner. The method for the collision avoidance is not specifically limited in the embodiment of the present invention.
  • the D2D device may randomly delay to send one time; or, the D2D device may be required to send based on the probability P3, for example, P3 is 0.5.
  • P3 is 0.5.
  • the D2D device first generates a random number between 0-1 before transmitting the data. When the random number falls between 0 and 0.5, the D2D device sends data, otherwise the data is not sent, wherein P3 can It is configured by the base station or it can be preset.
  • the D2D device may transmit a type on the D2D air interface.
  • a specially formatted signal such as a special format of scheduling information (or a dispatch header), may be used to warn other D2D devices that use the resource pool that the resources of the resource pool may not be sufficient.
  • the D2D device that is using the resource pool can perform D2D communication in a collision avoidance manner. For example, when data needs to be sent through the D2D air interface, the D2D device may randomly delay the transmission for one time; or send according to a certain probability P3 (P3 may be configured by the base station, or may be preset).
  • the D2D device may report the event to the base station, and the base station reconfigures the resources of the resource pool, and instructs the D2D device in the resource pool to suspend the D2D communication until the resource pool resource reconfiguration is completed. .
  • the D2D device may reselect the resource. Pool.
  • the D2D device can detect the resource conflict probability/resource occupation probability of the resource pool at regular intervals, and the specific time interval can be preset.
  • a method for D2D communication according to an embodiment of the present invention is described in detail above with reference to FIG. 1, and a D2D device according to an embodiment of the present invention is described in detail below with reference to FIGS. 2 and 3. It should be understood that the D2D device described in FIG. 2 or FIG. 3 is capable of performing the various steps performed by the D2D device in the above, and to avoid repetition, it will not be described in detail herein.
  • the D2D device 200 of Figure 2 includes:
  • a first determining unit 210 configured to determine a target resource of a current resource pool, where the current resource pool is any resource pool in a resource pool for D2D communication, where the target resource is in the current resource pool An occupied resource or a conflicting resource in the current resource pool, where the conflicting resource is a resource that is simultaneously occupied by multiple D2D signals in the current resource pool;
  • a second determining unit 220 configured to determine, according to the target resource, a resource usage parameter of the current resource pool, where the current resource pool is any one of resource pools used for D2D communication, and the resource is used.
  • the parameter is used to indicate a ratio of the occupied resource to a total resource of the current resource pool, or the resource usage parameter is used to indicate a ratio of the conflicting resource to a total resource of the current resource pool.
  • the D2D device can conveniently obtain the usage of the current resource pool, thereby providing reference for subsequent load balancing and conflict processing.
  • the D2D device 200 further includes: a first reporting unit, configured to report, to the base station, that the resource usage parameter is greater than the first, if the resource usage parameter is greater than a first threshold a threshold event, such that the base station reconfigures resources of the current resource pool.
  • a first reporting unit configured to report, to the base station, that the resource usage parameter is greater than the first, if the resource usage parameter is greater than a first threshold a threshold event, such that the base station reconfigures resources of the current resource pool.
  • the D2D device 200 further includes: a selecting unit, configured to reselect the resource pool if the resource usage parameter is greater than a first threshold.
  • the D2D device 200 further includes: a second reporting unit, configured to report the resource to the base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event whose parameter is smaller than the first threshold and greater than the second threshold is used, so that the base station indicates that the D2D device in the current resource pool uses resources in the current resource pool in a collision avoidance manner.
  • a second reporting unit configured to report the resource to the base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event whose parameter is smaller than the first threshold and greater than the second threshold is used, so that the base station indicates that the D2D device in the current resource pool uses resources in the current resource pool in a collision avoidance manner.
  • the D2D device 200 further includes: a first sending unit, configured to send to the current resource pool if the resource usage parameter is less than a first threshold and greater than a second threshold
  • a first sending unit configured to send to the current resource pool if the resource usage parameter is less than a first threshold and greater than a second threshold
  • the other D2D devices in the sending the indication information the indication information is used to instruct the other D2D device to use the resources in the current resource pool in a conflict avoidance manner.
  • the D2D device 200 further includes: a third reporting unit, configured to report the resource to the base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event whose parameter is smaller than the first threshold and greater than the second threshold is used, so that the base station reconfigures resources in the current resource pool.
  • a third reporting unit configured to report the resource to the base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event whose parameter is smaller than the first threshold and greater than the second threshold is used, so that the base station reconfigures resources in the current resource pool.
  • the second determining unit 220 is specifically configured to be in the current And receiving, by the preset resource of the resource pool, the scheduling information sent by the other D2D device, where the scheduling information is used to indicate a location of the resource that carries data of the other D2D device in the current resource pool; and determining, according to the scheduling information, The resource usage parameter.
  • the second determining unit 220 is specifically configured to detect energy of a D2D signal that uses resources in the current resource pool; and determine the resource usage parameter according to energy of the D2D signal.
  • the current resource pool is configured with at least one threshold corresponding to the resource usage parameter.
  • FIG. 3 is a schematic structural diagram of a D2D device according to an embodiment of the present invention.
  • the D2D device 300 of FIG. 3 includes:
  • a memory 310 configured to store a program
  • the processor 320 is configured to execute a program, when the program is executed, the processor 320 determines a target resource of a current resource pool, where the current resource pool is any resource in a resource pool for D2D communication. a pool, the target resource is an occupied resource in the current resource pool or a conflicting resource in the current resource pool, where the conflict resource is simultaneously occupied by multiple D2D signals in the current resource pool.
  • the resource usage parameter of the current resource pool is determined according to the target resource, where the current resource pool is any resource pool in a resource pool for D2D communication, and the resource usage parameter is used to indicate And a ratio of the occupied resource to a total resource of the current resource pool, or the resource usage parameter is used to indicate a ratio of the conflicting resource to a total resource of the current resource pool.
  • the D2D device can conveniently obtain the usage of the current resource pool, thereby providing reference for subsequent load balancing and conflict processing.
  • the D2D device 300 further includes: a transceiver, configured to report, to the base station, that the resource usage parameter is greater than the first threshold, if the resource usage parameter is greater than a first threshold. An event, such that the base station reconfigures resources of the current resource pool.
  • the processor 320 is further configured to reselect the resource pool if the resource usage parameter is greater than a first threshold.
  • the D2D device 300 further includes: a transceiver, configured to report the resource usage parameter to a base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event that is less than the first threshold and greater than the second threshold, so as to The base station indicates that the D2D device in the current resource pool uses the resources in the current resource pool in a conflict avoidance manner.
  • a transceiver configured to report the resource usage parameter to a base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event that is less than the first threshold and greater than the second threshold, so as to The base station indicates that the D2D device in the current resource pool uses the resources in the current resource pool in a conflict avoidance manner.
  • the D2D device 300 further includes: a transceiver, configured to be in the current resource pool if the resource usage parameter is less than a first threshold and greater than a second threshold
  • the other D2D device sends indication information, where the indication information is used to instruct the other D2D device to use resources in the current resource pool in a conflict avoidance manner.
  • the D2D device 300 further includes: a transceiver, configured to report the resource usage parameter to a base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event that is less than the first threshold and greater than the second threshold, so that the base station reconfigures resources in the current resource pool.
  • a transceiver configured to report the resource usage parameter to a base station if the resource usage parameter is less than a first threshold and greater than a second threshold An event that is less than the first threshold and greater than the second threshold, so that the base station reconfigures resources in the current resource pool.
  • the processor 320 is configured to receive scheduling information sent by another D2D device on a preset resource of the current resource pool, where the scheduling information is used to indicate that the other D2D device is carried. The location of the resource of the data in the current resource pool; determining the resource usage parameter according to the scheduling information.
  • the processor 320 is specifically configured to detect energy of a D2D signal that uses resources in the current resource pool; and determine the resource usage parameter according to energy of the D2D signal.
  • the current resource pool is configured with at least one threshold corresponding to the resource usage parameter.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例提供一种用于D2D通信的方法和D2D设备,该方法包括:D2D设备确定当前资源池的目标资源,其中,当前资源池为用于D2D通信的资源池中的任一资源池,目标资源为当前资源池中的被占用的资源或者当前资源池中的冲突资源,其中,冲突资源为当前资源池中的被多个D2D信号同时占用的资源;D2D设备根据目标资源确定当前资源池的资源使用参数,其中,当前资源池为用于D2D通信的资源池中的任一资源池,资源使用参数用于指示被占用的资源与当前资源池的总资源的比例,或者资源使用参数用于指示冲突资源与当前资源池的总资源的比例。

Description

用于D2D通信的方法和D2D设备 技术领域
本发明实施例涉及无线通信领域,并且更具体地,涉及一种用于设备对设备(Device to Device,D2D)通信的方法和D2D设备。
背景技术
在第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)Release-12&13中,D2D通信已经被标准化。在Release-12&13的规范中,用于D2D通信的D2D资源可以具有两种分配方式:一种是基于网络的资源分配方式,另一种是D2D设备自主分配方式。基于网络的资源分配方式是由基站对D2D资源进行分配的,这种分配方式主要适用于有蜂窝网络覆盖的情况。D2D设备自主分配方式可以由D2D设备自主选择D2D资源,例如,D2D设备基于预先规定好的资源分配图案随机选取D2D资源,这种分配方式既可以适用于有蜂窝网覆盖的情况,也可以适用于蜂窝网络覆盖的情况。在Release-12&13的D2D中,在D2D设备自主分配资源的情况下,由于没有中心调度节点(如基站)对资源的分配进行宏观控制,D2D设备或网络无法获知D2D资源的使用情况,这样很容易导致D2D资源的使用方式不合理。例如,D2D设备或网络无法获知D2D资源的使用情况就可能会导致D2D设备对D2D资源的使用不均,造成某些D2D资源负载较大,而某些D2D资源负载较轻。又如,D2D设备无法获知D2D资源的使用情况就可能会导致两个或多个D2D设备同时在相重叠的资源上发送D2D信号,相互干扰严重。
发明内容
本申请提供一种用于D2D通信的方法和D2D设备,以解决D2D设备自主分配资源的情况下,无法获知D2D资源使用情况的问题。
在某些实现方式中,提供一种用于D2D通信的方法,包括D2D设备确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源;所述D2D设备根据所述目标资源确定所 述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
通过确定当前资源池的资源使用参数,D2D设备能够方便获取所述当前资源池的使用情况,从而为后续的负载均衡、冲突处理提供参考。
在某些实现方式中,所述方法还包括:在所述资源使用参数大于第一阈值的情况下,所述D2D设备向基站上报所述资源使用参数大于所述第一阈值的事件,以便所述基站对所述当前资源池的资源进行重新配置。
当前资源池的资源使用参数大于第一阈值一般是由于资源池的资源配置不合理引起的,本实现方式中,D2D设备上报资源使用参数大于第一阈值这一事件,然后由基站对当前资源池的重配置,可以使D2D资源的使用更加合理。
在某些实现方式中,所述方法还包括:在所述资源使用参数大于第一阈值的情况下,所述D2D设备重新选择资源池。
本实现方式为当前资源池配置了第一阈值,当D2D设备检测当前资源池的资源使用参数大于该第一阈值时,该D2D设备重新选择资源池,能够使得D2D资源的使用更加合理。
在某些实现方式中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源也可以表述为:所述冲突资源为所述当前资源池中的被多组D2D设备同时占用的资源。
在某些实现方式中,用于D2D通信的资源池可以包括多个资源池。
在某些实现方式中,第一阈值可以表示当前资源池的资源严重不足或第一阈值可以表示当前资源池中的资源严重冲突。
在某些实现方式中,所述基站对所述当前资源池的资源进行重新配置可以是所述基站向所述当前资源池中添加资源。
在某些实现方式中,所述方法还包括:在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站指示所述当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源。
通过指示当前资源池中的D2D设备以冲突回避的方式使用所述当前资 源池中的资源,能够降低当前资源池中的资源冲突情况。
在某些实现方式中,所述方法还包括:在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向所述当前资源池中的其他D2D设备发送指示信息,所述指示信息用于指示所述其他D2D设备以冲突回避的方式使用所述当前资源池中的资源。
通过指示当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源,能够降低当前资源池中的资源冲突情况。
在某些实现方式中,所述方法还包括:在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站对所述当前资源池中的资源进行重新配置。
本实现方式中,D2D设备上报资源使用参数小于第一阈值,且大于所述第二阈值的事件,并由基站对当前资源池中的资源进行重新配置,可以缓解当前资源池中的资源被严重占用的情况,或者降低当前资源池中的资源的冲突程度。
在某些实现方式中,所述D2D设备确定当前资源池的资源使用参数,包括:所述D2D设备在所述当前资源池的预设资源上接收其他D2D设备发送的调度信息,所述调度信息用于指示承载所述其他D2D设备的数据的资源在所述当前资源池中的位置;所述D2D设备根据所述调度信息,确定所述资源使用参数。
在某些实现方式中,所述D2D设备确定当前资源池的资源使用参数,包括:所述D2D设备检测使用所述当前资源池中的资源的D2D信号的能量;所述D2D设备根据所述D2D信号的能量,确定所述资源使用参数。D2D信号的能量可以是D2D信号在特定时频资源上的能量,也可以是D2D信号的功率。
在某些实现方式中,所述用于D2D通信的资源池包括多个资源池,所述多个资源池是将用于D2D通信的资源按照时间和/或频率划分得到的。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本 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的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例的用于D2D通信的方法的示意性流程图。
图2是本发明实施例的D2D设备的示意性结构图。
图3是本发明实施例的D2D设备的示意性结构图。
具体实施方式
应理解,本发明的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、先进的长期演进(Advanced long term evolution,LTE-A)***、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、5G等。
还应理解,在本发明实施例中,D2D设备包括但不限于用户设备(User Equipment,UE)、移动台(Mobile Station,MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)、便携设备(portable equipment)、等,该用户设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等,用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在一些实施例中,D2D通信可以指车对车(Vehicle to Vehicle,V2V)通信,或V2X通信。在V2X通信中,X可以泛指任何具有无线接收和发送能力的设备,例如但不限于慢速移动的无线装置,快速移动的车载设备,或是具有无线发射接收能力的网络控制节点。
本发明实施例中,基站可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(evolved Node B,eNB或e-NodeB),还可以是5G中的用于提供接入服务的接入点,本发明实施例并不限定。
图1是本发明实施例的用于D2D通信的方法的示意性流程图。图1的方法包括:
110、D2D设备确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源。
120、所述D2D设备根据所述目标资源确定所述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
本发明实施例中,通过D2D设备检测当前资源池的资源使用参数,并针对检测结果进行资源重配或重新选择新的资源池,可以使D2D资源的使用方式更加合理。
在一些实施例中,D2D可用资源可以按时间和/或频率划分成不同的资源池,在D2D通信之前,D2D设备可以先选择一个资源池。
在一些实施例中,资源池的资源使用参数可以指资源池中的冲突资源与资源池的总资源的比例(下文称为资源冲突概率);资源池的资源使用参数可以指资源池中的被占用的资源与该资源池的总资源的比例(下文称为资源占用概率)。
在一些实施例中,可以为每个资源池配置对应的资源冲突概率设定第一阈值P1和第二阈值P2。当某个资源池的资源冲突概率大于P1时,可以表明该资源池的冲突情况或被占用情况非常严重;当某个资源池的资源冲突概率小于P1,大于P2时,可以表明该资源池的冲突情况或被占用的情况较为严重。不同资源池对应的P1或P2可以相同也可以不同。
在一些实施例中,可以为每个资源池均配置P1和P2,或者,也可以仅为每个资源池配置P1和P2中的一个。下面以每个资源池均配置P1和P2为例进行举例说明。
在一些实施例中,当D2D设备检测到某资源池的资源冲突概率/资源占用概率大于P2,然而小于P1时,此D2D设备可以通过空中接口向基站上报告这一事件。然后,可以由基站或D2D设备执行一系列措施,以改善资源池中资源的占用情况或冲突情况。
在一些实施例中,当基站/D2D设备在空中接口上检测到某资源池的资 源冲突概率资源占用概率大于P1时,基站/D2D设备可以启动资源池重新分配/资源池重选的过程。
下面介绍资源池对应的P1和P2的配置方式。
在一些实施例中,当D2D设备处在蜂窝网络覆盖中,且D2D资源由基站分配时,基站可以将整个D2D可用资源划分为不同的资源池,并为各资源池配置对应的P1和P2。
在一些实施例中,如果D2D设备不在蜂窝网络的覆盖下,D2D资源池可以是预先分配的,即预先将D2D可用资源划分成不同的资源池。进一步地,各资源池对应的P1和P2也可以是预先设置的。
下面介绍资源冲突概率/资源占用概率的检测方式。
在一些实施例中,发送数据前,可以规定发送端先在资源池的预设资源中发送调度信息,也可称为调度头(scheduling assignment)。该调度头可以向接收端指示承载数据的资源位置。这样,接收端就可以按照该调度信息去相应的位置接收数据。在一个例子中,该调度信息还可以包括数据的调制解调信息等。因此,在接收端接收调度信息的过程中,可以获知哪些资源被占用,或者哪些资源产生冲突。
在一些实施例中,也可以通过频谱能量感知(power sensing)的方式检测资源冲突概率和资源占用概率。例如,D2D的设备也可以通过检测资源池对应资源上的频谱能量的大小来判断当前资源是否被占用,和/或资源是否发生冲突。
在一些实施例中,可以规定接收端仅处于接收状态,不发射信号,这样可以保证检测的可靠性。
在一些实施例中,D2D设备对资源池的资源冲突概率/资源占用概率的检测方式可以由基站配置,也可以预先设定。比如,在有蜂窝网覆盖的情况下,检测方式可以由基站配置;在无蜂窝网覆盖的情况下,检测方式可以预先设定。
下面介绍当检测到资源冲突概率/资源占用概率之后的相应处理方式。
在一些实施例中,如果D2D设备通过检测资源池,发现资源冲突概率/资源占用概率大于P2,但是小于P1,在有蜂窝网络覆盖的情况下,D2D设备可以向基站报告这一事件。基站收到报告后,可以重新配置资源池的D2D资源,譬如为该资源池分配更多资源。或者,基站也可以指示正在使用此资 源池的D2D设备以冲突回避的方式进行D2D通信。本发明实施例对冲突回避的方式不作具体限定,比如,当D2D设备需要通过D2D空口发送数据时,该D2D设备可以随机延时一个时间再发送;或者,可以要求D2D设备基于概率P3发送,例如,P3为0.5,D2D设备在发送数据前,先产生0-1之间的随机数,当该随机数落在0-0.5之间时,该D2D设备发送数据,否则不发送数据,其中,P3可以是基站配置的,也可以是预先设定的。
在一些实施例中,如果D2D设备通过检测资源池,发现资源冲突概率/资源占用概率大于P2,但是小于P1,在有蜂窝网络覆盖的情况下,此D2D设备可以在D2D空中接口上发射一种特殊格式的信号,比如,一种特殊格式的调度信息(或调度头),用来向使用该资源池的其它D2D设备警告资源池的资源可能不够。在检测到资源池中有D2D设备发射这种事先规定的特殊格式的信号后,正在使用该资源池的D2D设备可以以冲突回避的方式进行D2D通信。比如,当需要通过D2D空口发送数据时,D2D设备可以随机延时一个时间再发送;或者按照某概率P3发送(P3可以是基站配置的,也可以是预先设定的)。
在一些实施例中,如果D2D设备通过检测资源池,发现资源冲突概率/资源占用概率大于P2,表明现有D2D资源严重不足。在有蜂窝网络覆盖的情况下,该D2D设备可以将这一事件上报至基站,由基站重新配置资源池的资源,并指示资源池中的D2D设备暂停D2D通信,直至资源池的资源重新配置完成。
在一些实施例中,在没有蜂窝网络覆盖的情况下,如果D2D设备通过检测资源池,发现资源冲突概率/资源占用概率大于P1时,表明该资源池已严重拥塞,该D2D设备可以重新选择资源池。在没有蜂窝网络覆盖的情况下,D2D设备可以每隔一段时间检测一次资源池的资源冲突概率/资源占用概率,具体的时间间隔可以预先设置。
上文结合图1,详细描述了根据本发明实施例的用于D2D通信的方法,下文结合图2和图3,详细描述根据本发明实施例的D2D设备。应理解,图2或图3描述的D2D设备能够执行上文中由D2D设备执行的各个步骤,为避免重复,此处不再详述。
图2是本发明实施例的D2D设备的示意性结构图。图2的D2D设备200包括:
第一确定单元210,用于确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源;
第二确定单元220,用于根据所述目标资源确定所述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
通过确定当前资源池的资源使用参数,D2D设备能够方便获取所述当前资源池的使用情况,从而为后续的负载均衡、冲突处理提供参考。
可选地,作为一个实施例,所述D2D设备200还包括:第一上报单元,用于在所述资源使用参数大于第一阈值的情况下,向基站上报所述资源使用参数大于所述第一阈值的事件,以便所述基站对所述当前资源池的资源进行重新配置。
可选地,作为一个实施例,所述D2D设备200还包括:选择单元,用于在所述资源使用参数大于第一阈值的情况下,重新选择资源池。
可选地,作为一个实施例,所述D2D设备200还包括:第二上报单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站指示所述当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源。
可选地,作为一个实施例,所述D2D设备200还包括:第一发送单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向所述当前资源池中的其他D2D设备发送指示信息,所述指示信息用于指示所述其他D2D设备以冲突回避的方式使用所述当前资源池中的资源。
可选地,作为一个实施例,所述D2D设备200还包括:第三上报单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站对所述当前资源池中的资源进行重新配置。
可选地,作为一个实施例,所述第二确定单元220具体用于在所述当前 资源池的预设资源上接收其他D2D设备发送的调度信息,所述调度信息用于指示承载所述其他D2D设备的数据的资源在所述当前资源池中的位置;根据所述调度信息,确定所述资源使用参数。
可选地,作为一个实施例,所述第二确定单元220具体用于检测使用所述当前资源池中的资源的D2D信号的能量;根据所述D2D信号的能量,确定所述资源使用参数。
可选地,作为一个实施例,所述当前资源池配置有与所述资源使用参数对应的至少一个阈值。
图3是本发明实施例的D2D设备的示意性结构图。图3的D2D设备300包括:
存储器310,用于存储程序;
处理器320,用于执行程序,当所述程序被执行时,所述处理器320确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源;根据所述目标资源确定所述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
通过确定当前资源池的资源使用参数,D2D设备能够方便获取所述当前资源池的使用情况,从而为后续的负载均衡、冲突处理提供参考。
可选地,作为一个实施例,所述D2D设备300还包括:收发器,用于在所述资源使用参数大于第一阈值的情况下,向基站上报所述资源使用参数大于所述第一阈值的事件,以便所述基站对所述当前资源池的资源进行重新配置。
可选地,作为一个实施例,所述处理器320还用于在所述资源使用参数大于第一阈值的情况下,重新选择资源池。
可选地,作为一个实施例,所述D2D设备300还包括:收发器,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所 述基站指示所述当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源。
可选地,作为一个实施例,所述D2D设备300还包括:收发器,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向所述当前资源池中的其他D2D设备发送指示信息,所述指示信息用于指示所述其他D2D设备以冲突回避的方式使用所述当前资源池中的资源。
可选地,作为一个实施例,所述D2D设备300还包括:收发器,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站对所述当前资源池中的资源进行重新配置。
可选地,作为一个实施例,所述处理器320具体用于在所述当前资源池的预设资源上接收其他D2D设备发送的调度信息,所述调度信息用于指示承载所述其他D2D设备的数据的资源在所述当前资源池中的位置;根据所述调度信息,确定所述资源使用参数。
可选地,作为一个实施例,所述处理器320具体用于检测使用所述当前资源池中的资源的D2D信号的能量;根据所述D2D信号的能量,确定所述资源使用参数。
可选地,作为一个实施例,所述当前资源池配置有与所述资源使用参数对应的至少一个阈值。
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、或者计算机软件和电子硬件的结合来实现。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发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个 ***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应所述以权利要求的保护范围为准。

Claims (18)

  1. 一种用于设备对设备D2D通信的方法,其特征在于,包括:
    D2D设备确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源;
    所述D2D设备根据所述目标资源确定所述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
  2. 如权利要求1所述的方法,其特征在于,所述方法还包括:
    在所述资源使用参数大于第一阈值的情况下,所述D2D设备向基站上报所述资源使用参数大于所述第一阈值的事件,以便所述基站对所述当前资源池的资源进行重新配置。
  3. 如权利要求1或2所述的方法,其特征在于,所述方法还包括:
    在所述资源使用参数大于第一阈值的情况下,所述D2D设备重新选择资源池。
  4. 如权利要求1-3中任一项所述的方法,其特征在于,所述方法还包括:
    在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站指示所述当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源。
  5. 如权利要求1-4中任一项所述的方法,其特征在于,所述方法还包括:
    在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向所述当前资源池中的其他D2D设备发送指示信息,所述指示信息用于指示所述其他D2D设备以冲突回避的方式使用所述当前资源池中的资源。
  6. 如权利要求1-5中任一项所述的方法,其特征在于,所述方法还包 括:
    在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,所述D2D设备向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站对所述当前资源池中的资源进行重新配置。
  7. 如权利要求1-6中任一项所述的方法,其特征在于,所述D2D设备确定当前资源池的资源使用参数,包括:
    所述D2D设备在所述当前资源池的预设资源上接收其他D2D设备发送的调度信息,所述调度信息用于指示承载所述其他D2D设备的数据的资源在所述当前资源池中的位置;
    所述D2D设备根据所述调度信息,确定所述资源使用参数。
  8. 如权利要求1-6中任一项所述的方法,其特征在于,所述D2D设备确定当前资源池的资源使用参数,包括:
    所述D2D设备检测使用所述当前资源池中的资源的D2D信号的能量;
    所述D2D设备根据所述D2D信号的能量,确定所述资源使用参数。
  9. 如权利要求1-8中任一项所述的方法,其特征在于,所述当前资源池配置有与所述资源使用参数对应的至少一个阈值。
  10. 一种设备对设备D2D设备,其特征在于,包括:
    第一确定单元,用于确定当前资源池的目标资源,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述目标资源为所述当前资源池中的被占用的资源或者所述当前资源池中的冲突资源,其中,所述冲突资源为所述当前资源池中的被多个D2D信号同时占用的资源;
    第二确定单元,用于根据所述目标资源确定所述当前资源池的资源使用参数,其中,所述当前资源池为用于D2D通信的资源池中的任一资源池,所述资源使用参数用于指示所述被占用的资源与所述当前资源池的总资源的比例,或者所述资源使用参数用于指示所述冲突资源与所述当前资源池的总资源的比例。
  11. 如权利要求10所述的D2D设备,其特征在于,所述D2D设备还包括:
    第一上报单元,用于在所述资源使用参数大于第一阈值的情况下,向基站上报所述资源使用参数大于所述第一阈值的事件,以便所述基站对所述当前资源池的资源进行重新配置。
  12. 如权利要求10或11所述的D2D设备,其特征在于,所述D2D设备还包括:
    选择单元,用于在所述资源使用参数大于第一阈值的情况下,重新选择资源池。
  13. 如权利要求10-12中任一项所述的D2D设备,其特征在于,所述D2D设备还包括:
    第二上报单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站指示所述当前资源池中的D2D设备以冲突回避的方式使用所述当前资源池中的资源。
  14. 如权利要求10-13中任一项所述的D2D设备,其特征在于,所述D2D设备还包括:
    第一发送单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向所述当前资源池中的其他D2D设备发送指示信息,所述指示信息用于指示所述其他D2D设备以冲突回避的方式使用所述当前资源池中的资源。
  15. 如权利要求10-14中任一项所述的D2D设备,其特征在于,所述D2D设备还包括:
    第三上报单元,用于在所述资源使用参数小于第一阈值,且大于第二阈值的情况下,向基站上报所述资源使用参数小于所述第一阈值,且大于所述第二阈值的事件,以便所述基站对所述当前资源池中的资源进行重新配置。
  16. 如权利要求10-15中任一项所述的D2D设备,其特征在于,所述第二确定单元具体用于在所述当前资源池的预设资源上接收其他D2D设备发送的调度信息,所述调度信息用于指示承载所述其他D2D设备的数据的资源在所述当前资源池中的位置;根据所述调度信息,确定所述资源使用参数。
  17. 如权利要求10-15中任一项所述的D2D设备,其特征在于,所述第二确定单元具体用于检测使用所述当前资源池中的资源的D2D信号的能量;根据所述D2D信号的能量,确定所述资源使用参数。
  18. 如权利要求10-17中任一项所述的D2D设备,其特征在于,所述当前资源池配置有与所述资源使用参数对应的至少一个阈值。
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