CN110089174A - In wireless communication system between wireless device Direct Communication resource selection method and device - Google Patents

Abstract

Long term evolution cellular type communications system supports the direct communication between running gear (102,108), and especially vehicle is to pedestrian's direct communication.Vehicle configuration UE (108) monitors the configured resource in resource pool for by-link communication, and identify may be released for use and with the resource from other UE next existing transmission phase collision risk.The vehicle configuration UE is then to pedestrian scheme UE (102) broadcast message to assist UE (102) to carry out resource selection under collision probability more lower than random selection resource.In another embodiment, the UE (102) of pedestrian scheme is only being supplied in the finite time depending on the resource pool loading condition of the pedestrian scheme UE based on vehicle configuration UE (100), is voluntarily monitored to having distributed resource.

Description

In wireless communication system between wireless device Direct Communication resource selection method and device

Technical field

Embodiments of the present invention generally relate to wireless communication systems, especially the device and method for selecting resource, To realize the direct communication between mobile radio communication device, especially suitable for pedestrian's user apparatus (Pedestrian User Equipment, P-UE) with vehicle user device (Vehicle User Equipment, V-UE) shared or and infrastructure Resource choosing on the shared so-called PC5 resource pool of user apparatus (Infrastructure User Equipment, I-UE) It selects.

Background technique

The wireless network of traditional running gear (User Equipment, UE) is dependent on the cellular net for supporting UE communication Network architecture.In these traditional networks, even the communication between a pair of UE, communication are by multiple network node controls 's.This uplink (Uplink, abbreviation UL) and downlink (Downlink, abbreviation DL) transmission are always in UE and network node It is carried out between (such as an eNB/eNodeB).As the substitution practice communicated between substitution UE by network node, directly Connect direct connection of the courier between UE.Here, unique effect (if there is) of network node be exactly establish directly connection and Distribute resource.3GPP long term evolution (Long-Term Evolution, LTE) the 13rd edition consideration is such de-centralized logical Letter, wherein term " by-link " (Sidelink) is used to refer to the direct connection between UE.So-called PC5 interface on each UE Facilitate the direct connection between a pair of of UE.

For the direct communication between UE, there are two types of the resource pools of type: planned assignment (Scheduling Assignment, SA) pond, also referred to as by-link control pond (Sidelink control pool) and data pool (Data Pool).Information is transmitted by the pond SA with the data transmission in designation date pond.Data pool is used for transmission data.Each resource pool It is made of multiple resources or physical resource blocking (Physical Resource Block, PRB) and subframe (Subframe). Each data transmission is associated with SA transmission, receives UE data parameters for notifying.It receives UE and needs blindly decoding (bindly Decode) control transmission, then decodes data.

Each UE is run in a half-duplex mode, wherein each UE can not be received and be transmitted in identical subframe. Therefore, for, when UE is being transmitted, the UE can not receive the SA and data biography occurred in identical subframe during each SA It is defeated.Here term " during SA " refers to that resource allocates resources to the phase that the cell (Cell) of SA transmission occurs in the period Between.

There is the UE of the mode transmission available to execute of two kinds of selection resources to use: mode 1 and mode 2.In mode 1, network Node distributes SA and data resource.In this case, the UE sends request, the network by Uu chain road direction network node Node using it is specific Xia the road Hang And-chain control information (Downlink Control Information, abbreviation DCI) authorized Distribute the answer of (Allocation Grant).Therefore, mode 1 is the resource that one kind removes competition (Contention Free) from The method of salary distribution.

In mode 2, UE distributes resource under any assistance not from network node.It is logical to vehicle for vehicle Letter, third generation partnership project (Third Generation Partnership Project, abbreviation 3GPP) is with regard to resource (again) algorithm selected is reached an agreement, and the algorithm is related to the sensing operation carried out by energy measurement or SA decoding.Fortune The hypothesis of work is: V-UE sensing operation at least executes 1000 milliseconds, this is greater than the minimum TX period of hypothesis, wherein transmission cycle Usually from 100 milliseconds to 1000 millisecond.Communication for pedestrian to vehicle, P-UE only executes random money within the limited time Source selection or execution sensing operation, there is presently no reach an agreement.Random sources selection represents resource allocation competition-based Mode.Therefore, the conflict in resource selection is easy to happen.This especially can be in there are many UE and the higher situation of data traffic One problem.

Herein, V2X term refers to based on LTE to connect vehicle, pedestrian and the communication service of infrastructure；What V2V referred to It is the communication between the vehicle based on LTE；V2P refers to that communication vehicle based on LTE and the personal device carried (such as are gone The handheld terminal of people, the people of cycling, driver or passenger) between communication；V2I refers to vehicle and roadside list based on LTE Communication between first (Roadside Unit).Roadside unit can be embodied in eNB or static state UE.

In terms of providing road safety, the communication between P-UE and V-UE is most important to latent defect is prevented.Receive V2P The delay that the pedestrian of (vehicle is to pedestrian) message has caused artificial time scale may be too slow and may further disperse people couple The attention of road.One receives reaction of the information of vehicles of P2V (pedestrian is to vehicle) in the delay of machine time scale and wants fast Much.Therefore P2V (i.e. pedestrian UE is transmitted and vehicle UE is received) is prior to V2P (i.e. vehicle UE transmission and pedestrian UE are received). 3GPP has assert: being a problem when randomly choosing the collision of resource transmission from the pond.Therefore, in V2V, 3GPP is introduced A kind of sensor mechanism allows vehicle to sense the load of a channel to mitigate this problem, and determines a least crowded resource. However, this method for sensing is because significant power consumption can be generated, it is not the optimal selection of P-UE.In addition, in current V2P scheme, P-UE has already consumed by sizable electric power, because it needs to receive at least those nigh every 100 milliseconds of generations of vehicle V2P information.On the other hand, P2V is possible to reduce the consumption of battery electric power, because every 1000 milliseconds of P-UE need to only access primary lead to Road.But exact amount of battery consumption depends on " sensing " behavior that P-UE is used to recognize possible resource.If P-UE can also feel Channel is surveyed to identify what which resource was occupied by other UE, then P-UE power consumption will be increase accordingly with the increase of sensing time.

The relatively long sensing operation of battery life can be reduced without executing by providing a kind of P-UE, communicated P2V and P2V and touched It will be beneficial for hitting the method that probability is preferably minimized.

Summary of the invention

A kind of resource selection method is provided according to the first aspect of the invention, for selecting resource to be by wireless communication The by-link of system carries out wireless communication direct communication between device, which comprises in the first wireless communication device, at first Between in interval, multiple resources in the resource pool used on by-link, the broadcast related money monitored have been distributed in monitoring The broadcast message in source, and in the second wireless communication device, be based on the received broadcast message, from having distributed to the side Resource is selected in the multiple resource of link.

The broadcast message includes at least one instruction for having distributed resource in one embodiment, described to have distributed resource It is selected for second wireless communication device.This resource or multiple resources are most possible selective resource.

In another embodiment, wherein the broadcast message include resource pool load instruction and the method into One step is included in the secondary communication device, between loading the second time to determine time interval value according to the resource pool Every interior, monitor allocated the multiple resource and therefrom select resource.

In an example, resource instruction that can be for selection can be in physics by-link control channel (Physical Sidelink Control Channel, PSSCH) on by transmission signaling.The instruction of resource pool load can be in physics by-link By transmission signaling in control channel (Physical Sidelink Control Channel, PSCCH).However, these instructions are not It is limited to this two kinds of specific channels.

In an example, the broadcast message include resource pool load whether be more than scheduled threshold value instruction.

There is provided according to the second aspect of the invention a kind of first wireless communication device include in first time interval, The receiver of multiple resources in the resource pool used on wireless communication system by-link has been distributed in monitoring, for being determined with The signal processor of the information of the resource monitored is closed, and is awarded for broadcasting the information in the wireless communication system The received conveyer of the second wireless communication device.

There is provided the second wireless communication device of one kind according to the third aspect of the invention we includes receiver, and the receiver is used for Broadcast message is received from the first wireless communication device of wireless communication system, the broadcast message is about having distributed in by-link On the multiple resources and signal processing circuit that are monitored by the first wireless communication device in the resource pool that uses, at the signal Circuit is managed to be used to select resource from allocated the multiple resource based on the broadcast message received.

The value to determine the second time interval according to resource pool load, Yi Jiqi is set in the signal processing circuit Described in receiver be arranged in the second time interval, monitor the multiple resource and from the multiple resource select money Source.

Wireless communication system can be LTE system, and by-link may include PC5 connection.First wireless communication device It can be V-UE or I-UE, and the secondary communication device can be P-UE.Each UE can include PC5 interface.

P-UE can receive the suggestion that may be available resource from multiple V-UE, then polymerize the suggestion received, and from It polymerize inventory and selects a resource.

The present invention helps to avoid resource contention when P-UE and V-UE shares identical resource pool, meanwhile, pass through minimum Change the battery of P-UE receiving time (time interval of channel-active is listened to by the way that relatively small P-UE is arranged) saving P-UE Power consumption.Another benefit is to reduce delay, because the present invention allows to select shorter offset, to allow P-UE transmission almost Immediately with after resource selection.

In one embodiment, V-UE detects PC5 link, for planned assignment (SA) money in time enough Source makes V-UE study V2X transport behavior and periodicity.V-UE can predict the following unallocated resource allocation as a result, and pass through side Chain road direction P-UE provides such useful information.Alternatively, the PC5 that P-UE can be detected during lesser links to carry out V2X planned assignment (SA) resource, and identify the resource to be selected.Therefore, P-UE can be with when using the segment resources measurement time Have a better understanding to most possible available resources overall picture.Compared with the selection of pure random sources, V-UE and P-UE resource contention All reduce.

In other embodiments, P-UE can be included in it when selecting resource or its duration during monitoring being arranged Its factor accounts for.For example, the network node in the wireless communication system, such as eNB can be transmitted and be received for P-UE Additional information in relation to load or Resource Availability.In another example, location information can be reached P-UE by I-UE.Another In one example, P-UE may carry out shadow using the input of onboard sensor (On-Board Sensors), module or application program Ring its resource selection.For example, this is most possibly to interact with V-UE if P-UE is being at present indoor or in pedestrian zone. It is therefore not necessary to listen to V2X SA resource.On the other hand, if due near roads speed or direction suddenly change and detect P-UE is dangerous, for example, P-UE needs establish reliable and low latency connection with neighbouring any V-UE, therefore should be arranged suitably The sensing period.

There is provided a kind of non-transitory computer-readable medium according to the third aspect of the invention we has the finger being stored thereon Enable, so as to by processor execute according to claim 1 to any one of 7 the method.

The non-transitory computer-readable medium includes at least one in the group being made up of: hard disk, CD are only It reads memory (Compact Disc Read Only Memory, CD-ROM), optical storage apparatus, magnetic storage device, read-only Memory, can programming read-only memory, it is erasable can programming read-only memory, Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read Only Memory, EPROM), the read-only storage of the Programmable Design of Electrical Erasable Device and flash memory.

Detailed description of the invention

More details, various aspects and embodiment example of the invention will be retouched only referring to schema by way of example It states.Component element is simple and for the sake of clearly stating in order to illustrate in schema, is not drawn necessarily to scale.Similar reference number included Understood in each schema with facilitating.

Fig. 1 is the simplification block diagram according to a part of the wireless communication system of example embodiment operation.

Fig. 2 is a kind of example for method that one or more V-UE are executed for assisting P-UE selection resource for by-link The simplified flowchart of transmission；With

Fig. 3 is the exemplary simplified flowchart that P-UE is the method that selection is executed for the resource of by-link transmission.

Specific embodiment

Those skilled in the art will recognize that and understanding described exemplary details is only to some embodiments Explanation, teachings described herein be suitable for various other situations.

Referring now to fig. 1, a part of embodiment according to the present invention of LTE cellular type communications system is illustrated simultaneously 100 are denoted as, the node B (Evolved node B, abbreviation eNB) of an evolution including supporting a LTE cell (Cell) 101.There can be other eNB a part (not shown) for constituting the communication system, and support to help other related cells.It is above-mentioned ENB may be coupled to other multiple general networks components (non-icon).The eNB 101 can be with one or more user apparatus (User Equipment, UE) communication, and resource can be distributed and used for user apparatus, to carry out direct communication each other.The One user apparatus 102 is located in 101 coverage area of eNB, including the whole world of conveyer 104, one of receiver 103, one is fixed Position system (Global Positioning System, GPS) 105 and a signal processing circuit 106, function will illustrate such as Under.The first user device 102 further includes a PC interface 108.The first user device 102 is carried by pedestrian, below Abbreviation P-UE.2nd UE 108 is located in vehicle, hereinafter referred to as V-UE 108.V-UE is mobile with variable-ratio, and may be described It is moved in the coverage area of eNB 101.V-UE 108 is equipped at conveyer 109, receiver 110, PC5 interface 111 and signal Device 112 is managed, function will be described below.P-UE 102 and V-UE 108 can be directly in communication with each other on by-link 113, and with Neighbouring other similar UE (not shown) is communicated.

Direct communication between two UE, the especially in this example P-UE 102 and UE 108 pass through the side Link 113 is based on two physical channels: carrying the physics by-link sharing channel (Physical of actual transmission channel data Sidelink Control Channel, PSSCH)；Make to execute received UE with the control information of carrying and is able to detect and decodes The PSCCH of data.The LTE communication system 100 supports V2X service, and the V-UE 108 is fast with the road for depending on it Periodic transfer V2V and the V2P information of degree.Under normal conditions, the V-UE 108 is scheduled on periodic regime depending on road speeds from 100 Millisecond is to one 300 byte information of transmission in 1 second, four 190 byte informations of heel.Anticollision array partnership relation suggestion, with 60 kilometers/hour or so speed traveling vehicle should it is every 300 milliseconds transmission, and with 15 kilometers/hour of slower speed traveling Vehicle can with every 1000 milliseconds transmit.The P-UE 102 is mobile usually with every 1000 milliseconds of transmission P2V letter with the speed of travel Breath.Information size is fixed on 300 bytes.

An option of resource selection is automatic resource selection mode on by-link, wherein the UE is autonomous selection money Source.In such a mode, before UE can transmit information by by-link 113, it must mesh have been distributed and has been used for thus from eNB 101 A kind of resource is selected among several resources of by-link.Some of resources may be used by other neighbouring V-UE.In order to Help selects resource, and V-UE 108 uses the primary resource option program based on sensing.As described previously for straight between UE Connecting letter, there are two types of the resource pools of type: the planned assignment pond (SA) and data pool.Information is by the planned assignment pond (SA) to transmit With the data transmission in designation date pond.It will be appreciated that in some arrangements, these ponds can overlap or single as one Pond.V-UE 108 can carry out energy measurement to detect those other UE SA Pooled resources currently in use at present, therefore cannot For oneself use.The period for carrying out these energy measurements can be relatively long, because the power consumption in vehicle installation UE is not asked Topic.(for example, 600 milliseconds of window size should be enough to perceive the transmission for being up to 600 milliseconds from the period that V-UE comes, that is, it is used for vehicle Travel speed is more than 28 kilometers/hour).In order to avoid resource collision, in the case where preferably, only those are by the V- UE 108 determines that vacant resource can choose.It has also been proposed that UE issues the predicted time of its next transmission in SA Signaling, such as 100*K function is (for example, the K=3 and maximum value K=10 300 milliseconds of the transmission the case where, to support 100 Millisecond is to 1000 milliseconds).From these measurements, the signal processor 112 in the V-UE 108 can identify one or more A resource that can choose, and the inventory of such resource is compiled to notify the P-UE 102.In this way, the P-UE 102 receive the assistance from V-UE, can select good resource, if to reduce the resource that P-UE executes random blindness The number of resource contention that can then occur is selected, and if reducing P-UE and executing oneself sensing measurement and arrive up to such as 600 The battery consumption that 1000 milliseconds of a rapid lapse of time will cause.(it will be seen that term " resource " and " multiple resources " may packets Include one group of Physical Resource Block (Physical Resource Blocks).In addition, at the signal in the V-UE 108 It manages device 112 and learns the behavior of V2X SA Pooled resources and period from sensing measurement, and predict the following unappropriated distribution operation.Future is not The mark of the distribution operation of distribution will notify the P-UE 102, the P-UE 102 to can be used for that a resource is selected to make for oneself With.It will be appreciated that the common recognition in V2V resource allocation is, a V-UE recognizes the money that will be occupied and/or conflicted by other UE Source, and for the transmission that it is transmitted to the P-UE 102, avoid the resource of configuration conflict.

From the V-UE 108 to the information of the P-UE 102, these information identify may unappropriated resource, Therefore these resources can be selected by the P-UE 102, these information are sent out using the PSSCH by the by-link 113 It send.When initially determining that the resource pool has loaded, the V-UE 108 detects whether the pond load is more than all nearby The generic threshold value of V-UE, if it is, the V-UE 108, which issues signal to the P-UE 102 on PSCCH, shows situation Really so.

It can be given notice by adding flag bit (flag bit) in the SA.This would not substantially be improved SCI encoding rate.Another implementation, i.e. V-UE can be in the feelings for not adding any position (not changing its content) into SA information It is indicated under condition, i.e. the CRC (Cyclical Redundancy Check) by shielding masking for SCI decoding.SA message length will be retained.It is attached After upper, CRC parity check bit (Parity Bits) and corresponding radio network temporary identifier (Radio Network Temporary Identity, RNTI) and pond load instruction shielding carry out mixing scrambling (Scramble).

Send the mark of the available resource of most probable to from the V-UE 108 by PSSCH the reality of the P-UE 102 Existing method may relate to a bit stream for distributing the suggestion and transmission block (Transport Block, TB), and progress is more together Task (Multiplexing) and staggeredly (Interleaving), it is described distribute subsidiary CRC attachment and with Reed-Muller or Viterbi coding.Advantageously, this provides timely information, because it does not need to will increase the MAC pause of delay.Pass through Design can will be preferably minimized the influence of TB encoding rate.

In the P-UE 102, when receiving most probable available resources inventory (being compiled in the V-UE 108), institute Stating the signal processing circuit 106 in P-UE 102 can choose the appropriate resources with minimum collision opportunity.The P-UE 102 can also receive similar inventory from other neighbouring V-UE.When selecting resource, by considering in one or more lists The information, the signal processing circuit 106 is it is contemplated that other factors.For example, the V- being closer with the P-UE 102 Resource proposed by UE can be invested higher weight.The degree of closeness of specific V-UE can be based on RSSI by the P-UE 102 (received signal strength indicator device) determines.

If the P-UE 102 does not receive the notice that resource pool has loaded, therefore without receiving any V-UE to can Any suggestion of the available resources of energy, then the P-UE 102 may be preset as traditional random selection money if necessary to transmit The mode in source.If a V-UE (using PSCCH) notifies 102 resource pool of P-UE to load, the P-UE 102 will It polymerize the resource of (providing on PSSCH) all suggestions, and is selected between them.Alternatively, if PSSCH is not supported This type of information, then the P-UE 102 can execute the sensing measurement (by listening to V2X transmission) of oneself, mode and above-mentioned V- The program that UE 108 is executed is similar, and only the time is shorter, to maintain low battery consumption as far as possible.It can be according to the resource pool The assessment situation of load is come during selecting the sensing time to continue.It may infer that if P-UE had previously listened to always transmission This point.If not detecting any transmission at all, it just can assume that the pond is empty.The assessment of pond load may also Transmission density dependent on other UE sensed.Alternatively, one or more V-UE may be provided from multiple options it is described The instruction of pond load value, and the corresponding suggestion sensing time to the P-UE of the pond load value continues period.If not Detect transmission, then it is assumed that minimum pool loads.

If the GPS module 105 detects the P-UE 102 indoors or pedestrian area, without being interacted with V-UE, There is no need to transmit any P2V information.Therefore, as long as the P-UE 102 still remains in such position, there is no need to listen to Any V2X SA transmission, and can be with maintenance battery life.For example, if the GPS module 105 detects the P-UE 102 Speed suddenly change is mobile to busy road direction, then the P-UE 102 needs to connect with low latency and reliably transmit P2V information.In this case, the signal processing circuit selects relatively long sensing time, and carry out sensing measurement with Identify available resources.

Referring now to the flow chart of Fig. 2 and Fig. 3, which illustrate a P-UE selections for by-link transmission The exemplary method of resource.Fig. 2 is related to operation performed by one or more V-UE 108, and Fig. 3 is related to a P-UE 102 and executes Operation.

In the first method, the V2X transmission referring to Fig. 2, in 201, the V-UE monitoring resource pool.In 202, such as Fruit monitoring step shows that the resource pool load is no more than scheduled threshold value, then in 203, the V-UE will pass through broadcast one Information notifies its described resource pool not load for the reception of P-UE 102.Referring now to Figure 3, if in 301, the P-UE The notice from the V-UE is received, i.e. resource pool does not load, and then in 302, P-UE will be attempted at random from the resource pool Middle selection resource.

In the second approach, referring to Fig. 2, in 202, when detecting that the pond load is more than the threshold value, 204 In, pond Load notification is sent the P-UE by V-UE (204).(Fig. 3 is referred to) in 301, is born when the P-UE receives pond When carrying notice, the method proceeds to 303, wherein the P-UE, which differentiates whether PSSCH delivers, any may be available resource Broadcast suggestion.If not receiving any suggestion, in 304, the P-UE is loaded according to resource pool determines monitoring spacing value (monitoring interval value), and at 305, it is transmitted by the V2X SA monitored in the resource pool (in institute State the interval of decision) to execute the resource selection program based on sensing, it is lower with the probability of other transmission collisions with identification one Suitable (available) resource.

In the third method, with reference to Fig. 2, in the case where the resource pool loads and reaches threshold value or more, the V-UE Multiple most probable available resources in the resource pool are identified in 205.In 206, the V-UE broadcast is most probable can It is received with the identification information of resource for the P-UE.Referring now to Figure 3, the P-UE detects that the PSSCH is passed in 303 Suggest up to broadcast；(these provide the suggestion of most probable available resources by several V-UE), and in 306, from the broadcast Resource is selected in it is recommended that.

Although the description of above embodiment be reference one V-UE provide information allow P-UE select resource, these sides Method is equally applicable to I-UE.

The signal processing function of multiple embodiments of the present invention can be by related fields skilled person institute The computing system known or framework are realized.Calculator system can be used in given application program or environment, such as desktop meter Calculation machine, notebook computer or notebook computer, hand-held computing device (personal digital assistant (Personal Digital Assistant, PDA), mobile phone, palm PC etc.), mainframe (mainframe), server, client or any other type Special or general-purpose calculating appts.The computing system may include one or more processors, these processors can be used General or specific use processing engine (such as microprocessor, microcontroller or other control modules) Lai Shixian.

The computing system can also include a main memory, such as random access memory (Random Access Memory, RAM) or other volatile memories, for storing the information and instruction that are executed by processor.In the finger that processor executes During order, such main memory can also be used for storage temporary variable or other average informations.Equally, the computing system can be with Static information and instruction including a read-only memory (ROM) or other static storage devices, for storage processor.It is described Computing system is also possible that an information storage system, such as may include a media disc driver and a removal formula Storage device interface.Media disc driver may include the disc driver for supporting fixed or removable storage device medium or Other mechanism, such as hard disk driver, floppy diskette driver, magnetic tape station disc driver, optical profile type disc driver, light Disk disc driver or digital video disk (Digital Video Disc, DVD) driver read or write (R or RW) disk drive Device or other removable or fixed medium disc drivers.Storage medium may include, for example, hard disk, floppy disk, tape, CD (Compact Disc, CD) or DVD or other fixed or movable media read and write by media disc driver.It deposits Storage media may include the computer readable storage medium that there is certain computer software or data to be stored therein

In an alternative embodiment, information storage system may include other similar component, to allow computer program Or other instructions or data are loaded into computing system.For example, this class component may include removable memory module and interface, such as Program cassette and cassette interface, can removal formula memory (such as flash memory or other can removal formula memory modules) and memory bank, with And other allow for software and data to be transferred to the removable storage device and interface of computing system from removable memory module.

The computing system can also include a communication interface.Such communication interface can be used for allowing in computing system Transmitting software and data between external device (ED).The example of communication interface include modem, network interface (such as Ethernet or Other network interface controllers (Network Interface Controller, NIC) card), communication port (such as general serial The port bus (Universal Serial Bus, USB)), personal computer memory card international association (Personal Computer Memory Card International Association, PCMCIA) slot and card etc..Pass through the soft of communications interface transmission The form of part and data is can be by the received electronics of communication interface medium, electromagnetism, optics or other signals.

In this paper file, term " computer program product ", " computer-readable media " etc. are generally used for referring to tangible Medium, such as memory, storage equipment or storage unit.The computer-readable media of these and other forms can store one or Multiple instruction, the processor for forming calculator system uses, so that the processor executes specified operation.Such instruction is logical Frequently referred to " computer program code " (can be grouped by computer program or the form of other groupings), when being executed, makes the meter Calculate the function that device system is able to carry out embodiment of the present invention.It is specified to note that code may directly result in processor execution Operation, be compiled to execute this operation, or by it with other software, hardware and firmware elements are (such as executing mark Quasi- function library) it is applied in combination.

In the embodiment using software realization element, software be can store in computer-readable medium, and make It is loaded into computing system with such as modes such as removable Storage disc driver.Control module (in this example, software instruction or Executable computer program code), when executing in the processor in the calculator system, it will lead to processor execution Function of the invention as described herein.

In addition, idea of the invention can be applied in network element execute any circuit of signal processing function.Further Imagine, for example, semiconductor maker can use idea of the invention, such as Digital Signal Processing in the design of self-contained unit The microcontroller of device (Digital Signal Processor, DSP) or the integrated circuit (Application- of specific application Specific Integrated Circuit, ASIC) and/or any other subsystem element.

For clarity, it will be appreciated that, foregoing description has references to single processing logic to describe embodiments of the present invention. However, the concept of invention again may be by multiple and different functional unit and processor to realize, to provide signal processing function Energy.Therefore, the reference of specific function unit can only be considered as providing the reference of the appropriate means of the function, rather than shown Stringent logic or physical structure or tissue.

Certain aspects of the invention can be realized with any form appropriate, including hardware, software, firmware or these aspects Any combination.The present invention is selectable as in one or more data processors and/or digital signal processor or can configure It is run on modular assembly (such as field programmable gate array (Field-Programmable Gate Array, FPGA) device) Computer software is realized, is at least partly realized.Therefore, the element and component of embodiment of the present invention can be with any appropriate Mode is realized in physics, functionally and logically.In fact, the function can be realized in a unit, it can be in multiple lists It is realized in member, a part that can also be used as other function unit is realized.

Although the present invention is described together with some embodiments, it is not used to limit specific shape as described herein Formula.On the contrary, the scope of the present invention is limited only by the appended claims.In addition, although on a certain figuratrix with specific reality Apply that mode is related, but those skilled in the art will be appreciated that the various features that can combine the embodiment according to the present invention. In the claims, " include " presence that a word is not excluded for other element or step.

In addition, although multiple means, element or method and step are individually listed, can by individual unit or processor come It realizes.Although these elements can be good for certain advantages in addition, Individual features may include in different claims Place and be combined, be included in different claims these features be not meant to assemblage characteristic be it is infeasible and/or It is advantageous.In addition, some feature is included in the limitation being not meant in a claim categories to this classification, and It is to show that the feature takes the circumstances into consideration to be equally applicable to other claim categories.

In addition, in claim the sequence of characteristic element be not meant to that characteristic element has to carry out it is any specific suitable The sequence of each step is not meant to that step must be executed in this order in sequence, especially claim to a method.On the contrary, these Step can be performed in any suitable order.In addition, the reference of odd number is not excluded for majority.Therefore, " one ", " one ", " The reference of one ", " second " etc. is not precluded multiple.

Although the present invention is described together with some embodiments, it is not limited only to particular form as described herein.Phase Instead, the scope of the present invention is limited only by the appended claims.In addition, although a certain feature seems have with particular implementation It closes, but those skilled in the art will be appreciated that the various features of the embodiment can be combined according to the present invention.It is weighing During benefit requires, " including " or " including " word does not exclude the presence of the presence of other element.

Claims (17)

1. a kind of resource selection method, for selecting resource to carry out wireless communication device with the by-link of system by wireless communication Between direct communication, which comprises in the first wireless communication device, in first time interval, monitoring distributed to Multiple resources in the resource pool used on the by-link, the broadcast message of the broadcast related resource monitored, Yi Ji Second wireless communication device, based on having received the broadcast message, from the multiple resource for having distributed to the by-link Select resource.

2. the method as described in claim 1, wherein the broadcast message includes at least one instruction for having distributed resource, it is described Resource has been distributed to be selected for second wireless communication device.

3. method according to claim 2, wherein the wireless communication system is a long term evolution (Long-Term Evolution, LTE) system, the by-link includes PC5 link and at least one described instruction for having distributed resource is to make Transmitted with physics by-link sharing channel, and by for each identified bit stream for having distributed resource and a transmission block with Multitask and staggeredly processing are to be transmitted.

4. the method as described in claim 1, wherein the broadcast message includes the instruction and the method for resource pool load Further comprise: the second time interval that the secondary communication device is loaded according to the resource pool to determine time interval value It is interior, it monitors allocated the multiple resource and therefrom selects resource.

5. the method as described in claim 1, wherein the broadcast message includes for pointing out whether the resource pool load surpasses Cross the instruction of scheduled threshold value.

6. method as described in claim 4 or 5, wherein the wireless communication system is LTE system and by-link includes PC5 Link, and by adding flag bit in planned assignment (Scheduling Assignment, SA), with physics by-link control Channel processed transmits the broadcast message.

7. such as the method for claim 4 or 5, wherein the wireless communication system is LTE system and by-link includes PC5 Link, and shielded by Cyclical Redundancy Check (Cyclic Redundancy Check, CRC), it is controlled and is believed with physics by-link Transmit the broadcast message in road.

It include receiver, signal processor and conveyer 8. a kind of first wireless communication device, the receiver is used for the In one time interval, multiple resources in the resource pool used on wireless communication system by-link have been distributed in monitoring, described For determining the information in relation to the resource monitored, the conveyer awards signal processor for broadcasting the information Second wireless communication device of the wireless communication system receives.

9. the first wireless communication device as claimed in claim 8 comprising be able to carry out V2X transmission and received vehicle user Device (Vehicle User Equipment, V-UE).

10. the first wireless communication device as claimed in claim 8 comprising be able to carry out V2X transmission and received basis is set Apply user apparatus (Infrastructure User Equipment, I-UE).

11. a kind of second wireless communication device includes receiver and signal processing circuit, the receiver is used for from channel radio First wireless communication device of letter system receives broadcast message, and the broadcast message is used on by-link about having distributed to It is used for by multiple resources that the first wireless communication device monitors and the signal processing circuit based on receiving in resource pool The broadcast message selects resource from allocated the multiple resource.

12. the second wireless communication device as claimed in claim 11, wherein the broadcast message received includes resource pool The notice of load, wherein the signal processing circuit is used to determine the value of the second time interval according to resource pool load, with Receiver described in and its is provided for monitoring the multiple resource in the second time interval and selecting from the multiple resource Source.

13. the second wireless communication device as claimed in claim 12, wherein the signal processing circuit is used for based on multiple outer Portion's factor adjusts the value of second time interval.

14. the second wireless communication device as claimed in claim 13, wherein the external factor includes at least one: described the The position of two wireless devices or the second wireless device and broadcast message to received wireless communication device degree of closeness.

15. the second wireless communication device as described in claim 11 to 14 comprising be able to carry out V2X transmission and received row People's user apparatus (Pedestrian User Equipment, P-UE).

16. a kind of non-transitory computer-readable medium, including the instruction being stored thereon, to be wanted by processor perform claim Method described in asking any one of 1 to 7.

17. non-transitory computer-readable medium as claimed in claim 16 comprising in the group being made up of at least One: hard disk, compact disc read-only memory (Compact Disc Read Only Memory, CD-ROM), optical storage apparatus, Magnetic storage device, read-only memory, can programming read-only memory, it is erasable can programming read-only memory, it is erasable Except programmable read only memory (Erasable Programmable Read Only Memory, EPROM), Electrical Erasable Programmable Design read-only memory and flash memory.