CN103688587A - Packet scheduling in a cellular communication network for the purpose of device -to -device communications - Google Patents
Packet scheduling in a cellular communication network for the purpose of device -to -device communications Download PDFInfo
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- CN103688587A CN103688587A CN201280034274.1A CN201280034274A CN103688587A CN 103688587 A CN103688587 A CN 103688587A CN 201280034274 A CN201280034274 A CN 201280034274A CN 103688587 A CN103688587 A CN 103688587A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- 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
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- 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
Abstract
Methods, apparatus and computer program products facilitate scheduling in a hybrid communication network with varying types of devices, such as device-to-device (D2D) mobile terminals and other, such as cellular, mobile terminals. In this regard, a D2D scheduling activity factor is calculated by a network node based at least in part on a total number of both D2D mobile terminals and other mobile terminals, and the scheduling activity factor is sent to at least one D2D mobile terminal. The D2D mobile terminal uses the scheduling activity factor to determine when to transmit locally measured signal to interference plus noise ratio (SINR) information to a network node. The D2D mobile terminal may be scheduled by the network node separately from other mobile terminals based at least in part on the SINR information.
Description
Technical field
Embodiments of the present invention relate generally to the communication technology, and more specifically, relate to for promoting the method and apparatus of the packet scheduling of hybrid network, and described hybrid network comprises device-to-device (D2D) communication and communicates by letter such as other of cellular communication.
Background technology
Cellular system in Long Term Evolution (LTE) and enhancement mode LTE standard is not only provided for the cellular communication between mobile terminal and base station, and for the communication between mobile terminal.Mobile terminal is except utilizing cellular communication link also can utilize direct radio link to communicate with one another, and this is called as device-to-device or " D2D " communication.Cellular communication utilizes Frequency Division Duplexing (FDD) (FDD) pattern, and these D2D communications utilize time division duplex (TDD) pattern, and wherein the up link (UL) of cellular network and the use of down link (DL) resource are controlled in base station.The final result that this D2D communication is provided is the transmitter power consumption that reduces for base station and mobile terminal, the capacity of cellular networks of increase and the service that improves for user, and therefore along with the demand of cordless communication network is increased quickly than the capacity of these networks, D2D communication expection becomes very popular.
Due to various reasons, for providing the Packet scheduling mechanism of the wireless network of this " mixing " environment may be quite challenging.Only have the conventional cellular systems of cellular device typically to utilize in network " equitable proportion " or " PF " packet scheduler.The PF index of distributing mobile terminal in PF packet scheduler is that take based on instantaneous signal and interference plus noise is basis than the ratio of the standard of (SINR) and standard based on throughput.Therefore, this PF index can be expressed as following equation, and wherein j is j Transmission Time Interval (TTI)/current TTI:
PFmetric(j)=InstSINR(j)/AvgSINR
Although provide for all fair comparisons of cellular device, used the such technology of PF scheduler such as division and scheduling resource in this hybrid network to cause some difficulties.Due to the dynamic channel condition in D2D connection and the interference level being associated, the mobile terminal during D2D connects will have higher PF index.In this respect, due to main from phone user's channel condition and more dynamic changes of interference, may be wider for having that the PF index of the mobile terminal that D2D connects distributes.Owing to thering is mobile terminal that D2D connects, may experience the severe jamming from adjacent cell transmission and the D2D transmission carried out with some TTI, so average SINR reduces greatly.Therefore,, during having therein other TTI that mobile terminal experience that D2D connects still less disturbs, it will be quite high that PF index is compared common with phone user.Therefore, in hybrid network, utilize PF index conventionally will cause selecting D2D user rather than phone user, and therefore, may excessively dispatch the grouping from D2D mobile terminal.
Summary of the invention
According to illustrative embodiments, provide for promoting method, device and the computer program of the packet scheduling of honeycomb and non-honeycomb hybird environment.Various illustrative embodiments more balancedly to consider for the division of the resource of cellular device and D2D equipment and scheduling to excessively do not dispatch from the mode of the grouping of D2D mobile terminal and carry out PF scheduling with respect to cellular mobile terminal or other mobile terminals.
According to an illustrative embodiments, a kind of method for using in controlling the packet scheduling of hybrid communication network is provided, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, and described method comprises:
The total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type, calculates the schedule activities factor at least in part;
Make the calculated schedule activities factor be sent to the described mobile terminal of the first kind described at least one;
From the mobile terminal of described at least one first kind, receive Signal to Interference plus Noise Ratio (SINR) information;
SINR information based on received at least in part, with mobile terminal for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch the resource for the mobile terminal of described at least one first kind; And
Described resource based on being scheduled for the mobile terminal of described at least one first kind, makes schedule information be sent to the mobile terminal of described at least one first kind.
The mobile terminal that this execution mode is particularly suitable for wherein said Second Type is the layout of cellular terminal.
In this illustrative embodiments, described method can further comprise: the previous D2D SINR measurement based in special time window generates D2D SINR distribution at least partly; With the mobile terminal of described Second Type or described in each the mobile terminal of Second Type be kept for discretely the CQI (CQI) of the mobile terminal of the described first kind; And the described schedule activities factor is transmitted, such as, by signaling protocol (such as (being not limited to) cellular signaling) or device-to-device, connect the mobile terminal from base-station transmission to the described first kind.For the mobile terminal of the described first kind and the mobile terminal of described Second Type or described in each the scheduling of the resource of the mobile terminal of Second Type can there is authorization resources for the effect of transfer of data, this notifies described mobile terminal via described schedule information.
In another illustrative embodiments, a kind of method for using in controlling the packet scheduling of hybrid communication network is provided, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, and described method comprises:
Receiving scheduling activity factor, the described schedule activities factor is the total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type at least in part;
By contrast signal and interference plus noise, than (SINR), distribute, at least in part based on the described schedule activities factor, definite threshold SINR value;
Assessment is for the SINR value of the measurement of the mobile terminal of the described first kind; And
The SINR value of described measurement therein surpasses in the situation of described threshold value SINR value, make to indicate the data of the SINR of described measurement to be transmitted, described data for the mobile terminal with for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch for the resource of the mobile terminal of described at least one first kind and use.The described SINR distribution that can comprise SINR distribution curve is that the SINR based in special time window measures at least in part.
According to further illustrative embodiments, a kind of device for using in controlling the packet scheduling of hybrid communication network is provided, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, described device comprises treatment system, described treatment system can for example be embodied as the treatment circuit of the form with at least one memory and computer program code.In this illustrative embodiments, described treatment system is configured to:
The total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type, calculates the schedule activities factor at least in part;
Make the calculated schedule activities factor be sent to the described mobile terminal of the first kind described at least one;
From the mobile terminal of described at least one first kind, receive Signal to Interference plus Noise Ratio (SINR) information;
SINR information based on received at least in part, with mobile terminal for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch the resource for the mobile terminal of described at least one first kind; And
Described resource based on being scheduled for the mobile terminal of described at least one first kind, makes schedule information be sent to the mobile terminal of described at least one first kind.Described device can comprise network node, such as base station.
According to an illustrative embodiments again, a kind of device for using in controlling the packet scheduling of hybrid communication network is provided, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, described device comprises treatment system, described treatment system can for example be embodied as the treatment circuit of the form with at least one memory and computer program code.In this illustrative embodiments, described treatment system is configured to:
Receiving scheduling activity factor, the described schedule activities factor is the total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type at least in part;
By contrast signal and interference plus noise, than (SINR), distribute, at least in part based on the described schedule activities factor, definite threshold SINR value;
Assessment is for the SINR value of the measurement of the mobile terminal of the described first kind; And
The SINR value of described measurement therein surpasses in the situation of described threshold value SINR value, make to indicate the data of the SINR of described measurement to be transmitted, wherein said data for the mobile terminal with for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch for the resource of the mobile terminal of described at least one first kind and use.In this illustrative embodiments, described device can comprise mobile terminal.
Another illustrative embodiments comprises computer-readable medium, and it comprises instruction set, and described instruction set makes described computing equipment carry out method recited above when the computing equipment by suitable is carried out.
It is only in order to summarize illustrative embodiments more of the present invention, to the basic comprehension to some aspects of the present invention is provided that above summary of the invention is provided.Therefore, will understand, above-mentioned illustrative embodiments is only example and should be interpreted as dwindling by any way scope of the present invention or spirit.To understand, scope of the present invention comprises a lot of potential execution modes, those except summarizing here, and wherein some also will further be described below.Conventional mobile device also can be used this CQI method for reporting based on adaptive threshold for the cellular communication of conventional cellular network.
Accompanying drawing explanation
After describing illustrative embodiments of the present invention like this with general terms, now with reference to accompanying drawing, it needn't be drawn in proportion, and wherein:
Fig. 1 illustrates and is configured to support according to the system communication of one embodiment of the present invention, that comprise mobile terminal and base station.
Fig. 2 is according to the block diagram of the mobile terminal of one embodiment of the present invention, and wherein this mobile terminal can comprise such as the mobile terminal of the first kind of D2D terminal or such as the terminal of the Second Type of cellular terminal.
Fig. 3 is according to the block diagram of the base station of one embodiment of the present invention or other network elements.
Fig. 4 is the signaling diagram illustrating according to exemplary embodiment of the invention, the message that exchanges between the terminal of base station, the first kind and the mobile terminal of Second Type.
Fig. 5 is the flow chart that the operation of carrying out from base station angle according to execution mode of present invention is shown.
Fig. 6 is the flow chart that the operation of carrying out from base station angle according to execution mode of present invention is shown.
Fig. 7 is the flow chart illustrating according to the operation of carrying out from the terminal angle of the first kind when previous execution mode.
Embodiment
Now will with reference to accompanying drawing, describe more fully embodiments of the present invention hereinafter, wherein show more of the present invention rather than whole execution modes.Really, provide these execution modes so that this specification will meet applicable legal requiremnt.Similar label refers to similar element from start to finish.
As used in this application, term " circuit " refers to whole in following: (a) only the circuit of hardware is implemented (such as the enforcement of only having simulation and/or digital circuit); And (b) combination of circuit and software (and/or firmware), such as (if applicable): (i) the combination of processor or the (ii) part of processor/software (comprise and playing a role together so that install digital signal processor, software and the memory of carrying out various functions such as mobile phone or server); And (c) need to be for software or the firmware operating, even if this software or firmware are not the circuit that physics exists, such as a part for microprocessor or microprocessor.
This definition of " circuit " is applied to whole uses that the application comprises this term in any claim.As further example, as used in this application, this term " circuit " also will cover the enforcement of the subsidiary software in processor (or a plurality of processor) only or processor and it (or they) and/or a part for firmware.This term " circuit " also will cover, and if be for example applicable to specific claim element, for the base band integrated circuit of mobile phone or the similar integrated circuit of application processor integrated circuit or server, cellular network device or other network equipments.
Disclose a kind of for promoting method, device and the computer program of the scheduling of hybrid communication network.In this respect, the method of some illustrative embodiments, device and computer program to be more balancedly to consider division and the scheduling for the resource of honeycomb and D2D equipment (these be respectively here the Second Type of indication and the example devices of the first kind), to excessively do not dispatch from the mode of the grouping of D2D mobile terminal and carry out PF scheduling with respect to honeycomb or other mobile terminals.Although the method, device and computer program can be implemented with various different systems, but figure 1 illustrates an example of this system, it comprises can be via base station 18(for example, Node B, evolved Node B(eNB) or the accessing points of other types) with network 10(for example, core network) communication equipment (for example, mobile terminal 14 and 16) of communication.Although network 10 can be according to LTE or enhancement mode LTE(LTE-A) configure, other networks also can be supported method, device and the computer program of embodiment of the present invention, comprise according to those networks of the configurations such as Wideband Code Division Multiple Access (WCDMA) (W-CDMA), CDMA2000, global system for mobile communications (GSM), General Packet Radio Service (GPRS).
Communication equipment such as mobile terminal 14 and 16(are also referred to as subscriber equipment (UE)) can be via base station 18 and then via network 10 and other communication equipments or other devices communicatings.Mobile terminal 14 or 16 can comprise any equipment, but in order to illustrate, mobile terminal 14 represents to be configured to connect via D2D the mobile terminal of the so-called first kind of communication, and the mobile terminal of the so-called Second Type that mobile terminal 16 expressions are communicated by letter via the connection that is different from D2D connection, such as cellular mobile terminal. Mobile terminal 14 and 16 comprises for sending signal to base station 18 and for 18 antennas that receive signals from base station.
In some illustrative embodiments, mobile terminal 14 or 16 can be mobile communication equipment, such as mobile phone, portable digital-assistant (PDA), beep-pager, laptop computer or other hand-held or portable communication devices, computing equipment, content generate equipment, content consumption equipment or its combination arbitrarily.So, mobile terminal 14 and 16 can comprise definition process circuit separately or with one or more processors of the incompatible definition process circuit of one or more memory set.This treatment circuit can utilize the instruction of storing in this memory so that this mobile terminal is with ad hoc fashion operation or execution specific function when these instructions are carried out by these one or more processors. Mobile terminal 14 and 16 also can comprise that telecommunication circuit and corresponding hardware/software are to realize and the communicating by letter of other equipment and/or network 10.Although for example, only two D2D terminals 14 and single other (honeycomb) terminals 16 shown in Figure 1, mobile terminal can be included in network 10 and/or have the communication link with base station 18 but more.
In one embodiment, for example, mobile terminal 14 or 16 can be embodied as or comprise the device 20 substantially representing as the block diagram of Fig. 2.Although this device can be implemented by for example mobile terminal, it should be noted that these assemblies, equipment or the element that the following describes can not be enforceable, and therefore can omit in some embodiments.In addition, except shown in here and describe those, some execution modes can comprise further or different assemblies, equipment or element.
As shown in Figure 2, device 20 can comprise or with can be configured to the treatment circuit 22 performing an action according to illustrative embodiments described herein and communicate by letter.This treatment circuit can be configured to process, apply and carry out and/or other processing and management service according to exemplary embodiment of the invention executing data.In some embodiments, this device or this treatment circuit can be embodied as chip or chipset.In other words, this device or this treatment circuit can be included in the one or more physical package (for example, chip) that for example, comprise material, assembly and/or electric wire on textural association part (, substrate).The physical strength of assembly circuit that this textural association part can be provided for comprising on it is, the saving of size and/or electric interactions limit.In some cases, therefore this device or this treatment circuit can be configured to implement embodiments of the present invention on one single chip or as single " SOC (system on a chip) ".So, in some cases, chip or chipset can form for carrying out for the device of one or more operations of function described herein is provided.
In the exemplary embodiment, treatment circuit 22 can comprise processor 24 and memory 26, and processor 24 can be communicated by letter with equipment interface 28 and communicate by letter with user interface in some cases with memory 26 or control appliance interface 28 and control in some cases user interface.So, this treatment circuit can be embodied as and for example be configured (for example,, by the combination of hardware, software or hardware and software), for carrying out the circuit chip (, integrated circuit (IC) chip) of operation described herein.Yet in some execution modes under mobile terminal 14 and 16 backgrounds, this treatment circuit can be embodied as a part for mobile computing device or other mobile terminals, and can be provided for the D2D communication under D2D terminal background.
Equipment interface 28 can comprise for realizing the one or more interface mechanisms with other equipment and/or network service.In some cases, this equipment interface can be any device, such as being configured to, from network 10, receiving data and/or data are sent to equipment or the circuit that the combination with hardware or hardware and software of network 10 is implemented, and/or any other equipment or the module of communicating by letter with treatment circuit 22.In this respect, this equipment interface for example can comprise for realizing antenna (or a plurality of antenna) and support hardware and/or the software of communicating by letter with cordless communication network, and/or for supporting communication modem or other hardware/softwares via cable, Digital Subscriber Line (DSL), USB (USB), Ethernet or additive method communication.
In the exemplary embodiment, memory 26 can comprise one or more non-transient memory devices, such as being that fix or removable volatibility and/or nonvolatile memory.This memory can be configured to storage for making device 20 can carry out according to exemplary embodiment of the invention the information, data, application, instruction etc. of various functions.For example, this memory can be configured to the input data of buffering for being processed by processor 24.Additionally or alternately, this memory can be configured to the instruction of storage for being carried out by this processor.As another alternative scheme, this memory can comprise in a plurality of databases that can store various files, interior perhaps data acquisition system.In these contents of this memory, can store application for being carried out to carry out the function being associated with each respective application by this processor.In some cases, this memory can be via the bus for transmission of information between the assembly of this device and this processor communication.
Processor 24 can be implemented in multiple different mode.For example, this processor can be embodied as various processing unit, such as comprising that integrated circuit is such as ASIC(application-specific integrated circuit (ASIC)), FPGA(field programmable gate array) etc. microprocessor or other treatment elements, coprocessor, controller or various other calculating or treatment facility in one or more.In the exemplary embodiment, this processor can be configured to instruction or addressable this processor of storage in execute store 26.So, no matter be, by hardware, configure or the combination by hardware and software configures, when such configuration, can represent can for example, according to the entity of embodiment of the present invention executable operations (, physically implement---with the form for the treatment of circuit 22) in circuit for this processor.Therefore, when being implemented as ASIC, FPGA etc. when this processor, this processor can be for carrying out the hardware of the customized configuration of operation described herein.Alternately, as another example, when this processor is implemented as the executor of software instruction, these instructions can specifically configure this processor to carry out operation described herein.
The in the situation that of mobile terminal 14, device 20 can comprise the D2D mobile terminal that is configured to connect via D2D communication.The in the situation that of mobile terminal 16, device 20 also can comprise and be configured to not be to connect by D2D the mobile terminal communicating, and so can be cellular mobile terminal, includes but not limited to smart mobile phone.Yet in other illustrative embodiments, mobile terminal 16 can be to be configured to connect according to D2D the hybrid terminal that is connected (connecting such as honeycomb) both communication with another.
As noted above, base station 18 can be configured to communicate by letter with mobile terminal 14,16.In some cases, base station 18 can comprise for sending signal to these mobile terminals and for receive antenna or the aerial array of signals from these mobile terminals.Base station 18 can comprise can independently limit treatment circuit or with one or more processors of the incompatible restriction treatment circuit of one or more memory set.This treatment circuit can utilize the instruction of storing in memory so that this base station operates or carry out specific function with ad hoc fashion when these instructions are carried out by these one or more processors.Base station 18 also can comprise that telecommunication circuit communicates by letter with these mobile terminals and/or network 12 to realize with corresponding hardware/software.
In one embodiment, this base station can be embodied as or comprise the device 30 substantially representing as the block diagram of Fig. 3.Although this device can be utilized by for example base station, it should be noted that these assemblies, equipment or the element that the following describes can not be enforceable, and therefore can omit in some embodiments.In addition, except shown in here and describe those, some execution modes can comprise other or different assemblies, equipment or element.
As shown in Figure 3, device 30 can comprise or communicate by letter with the treatment circuit 32 that can be configured to perform an action according to illustrative embodiments described herein.This treatment circuit can be configured to process, apply and carry out and/or other processing and management service according to exemplary embodiment of the invention executing data.In some embodiments, this device or this treatment circuit can be embodied as chip or chipset.In other words, this device or this treatment circuit can be included in the one or more physical package (for example, chip) that for example, comprise material, assembly and/or electric wire on textural association part (, substrate).The physical strength of assembly circuit that this textural association part can be provided for comprising on it is, the saving of size and/or electric interactions limit.In some cases, therefore this device or this treatment circuit can be configured to implement embodiments of the present invention on one single chip or as single " SOC (system on a chip) ".So, in some cases, chip or chipset can form for carrying out for the device of one or more operations of function described herein is provided.
In the exemplary embodiment, treatment circuit 32 can comprise processor 34 and memory 36, and processor 34 can be communicated by letter or control appliance interface 38 with equipment interface 38 with memory 36.So, this treatment circuit can be embodied as and for example be configured (for example,, by the combination of hardware, software or hardware and software), for carrying out the circuit chip (, integrated circuit (IC) chip) of operation described herein.Yet in some execution modes of taking under the background of base station, this treatment circuit can be embodied as a part for base station or other network entities.
In the exemplary embodiment, memory 36 can comprise one or more non-transient memory devices, such as being that fix or removable volatibility and/or nonvolatile memory.This memory can be configured to storage for making device 30 can carry out according to exemplary embodiment of the invention the information, data, application, instruction etc. of various functions.For example, this memory can be configured to the input data of buffering for being processed by processor 34.Additionally or alternately, this memory can be configured to the instruction of storage for being carried out by this processor.As another alternative scheme, this memory can comprise in a plurality of databases that can store various files, interior perhaps data acquisition system.In these contents of this memory, can store application for being carried out by this processor to carry out the function being associated with each application separately.In some cases, this memory can be via the bus for transmission of information between the assembly of this device and this processor communication.
Fig. 4 is the signaling diagram of message illustrating according to exemplary embodiment of the invention, exchange between base station 18, D2D terminal 14 and other mobile terminals 16.Although it is exchanged between base station 18, D2D terminal 14 and other mobile terminals 16 that Fig. 4 illustrates these message, these message are only used to be illustrated for example.Therefore, can utilize any equipment in communication network 10 to replace base station 18, D2D terminal 14 and other mobile terminals 16, include but not limited to the equipment of any type.Other mobile terminals 16 can comprise the equipment that just connects any type of communicating by letter with base station 18 via connection such as the honeycomb that is different from D2D connection.Really, other-end 16 can be the hybrid terminal that can also carry out D2D communication, but considers that other-end therein relies on the other-end being different from the situation that connection that D2D connects communicates by letter with base station 18 and then communicate by letter with network 10.
According to the embodiment of the present invention, the form that D2D mobile terminal 14 and other mobile terminals 16 can for example respond with availability sends a message to base station 18, so that base station 18 can be determined, is connected to the D2D mobile terminal 14 of base station 18 and the number of other-end 16.When this message comprises availability response, can send by the response of the examination to from base station 18 (ping) or request.Note, if base station 18 has another mechanism that is connected to the D2D mobile terminal 14 of base station 18 and the number of other-end 16 for determining, availability response can not asked or trigger in base station 18, and can not require that these D2D terminals and other-end send to base station 18 by availability response.With the communication connection that can comprise any type that is connected of base station 18, wired or wireless connection, and can be present in honeycomb or non-cellular band.
Once base station 18 is by the reception of message or by the definite D2D mobile terminal 14 of base station 18 and the number of other mobile terminals 16 of being connected to of another mechanism, 18 of the base stations calculating schedule activities factor.This factor can go out from having mathematical equation or the derivation of equation of the effect of the SINR value that limits or reduce to be reported by D2D mobile terminal 14.In an illustrative embodiments, the number that this calculating comprises definite D2D mobile terminal 14 is with respect to the percentage that is connected to the D2D mobile terminal 14 of base station 18 and the total number of other mobile terminals 16.For example, 32 D2D mobile terminals and 68 other mobile terminals are connected in the situation of this base station and like therein, and the activity factor calculating is 32/ (68+32)=32%.Be noted that determined SINR should be with respect to SINR cumulative distribution function (CDF) distribute evaluated (at the some place of 100%-32%=68%); As a result of, when the SINR of the mobile terminal 14 for given is positioned within front 32%, this SINR is reported for scheduling by this mobile terminal.
Once D2D mobile terminal 14 receives this activity factor, this base station sends to D2D mobile terminal 14 by this schedule activities factor.This transmission from base station 18 can be undertaken by any communication protocol, includes but not limited to, via the signaling protocol such as cellular signaling or GPS signaling.
Can be that the SINR of curve form distributes can be by base station 18, by D2D mobile terminal 14, by other mobile terminals 16 or received or generated by external equipment.This SINR distribution curve can be stored in base station 18, D2D mobile terminal 14 or the addressable memory of other mobile terminals 16, and can be with programming language or the command sequence storage of any type.This SINR distribution curve can generate by the historical SINR information of analyzing for D2D mobile terminal 14, and this SINR can be sampled at each TTI.Sample in one time period can be stored to form the SINR distribution curve that can upgrade based on time slide window section, and can comprise up-to-date sample and delete discarded sample.
The example that SINR distribution curve is provided in Fig. 5, wherein trunnion axis represents D2DSINR value, and vertical axis represents the schedule activities factor for window calculates sometime.According to the D2D equipment 14 of one of exemplary embodiment of the invention operation with reference to this SINR distribution curve with by identifying on this curve the location positioning SINR value corresponding to CDF value on vertical axis, and on then definite trunnion axis corresponding to the position of this position to determine SINR value.As only, in order to illustrate for example, for the D2D mobile terminal with the 32% schedule activities factor, this SINR distribution curve illustrates 13dB SINR value.
Once determine SINR value, D2D mobile device 14 is used as threshold value SINR value by this SINR value from this SINR distribution curve.Then, when the SINR value of this D2D equipment computation and measurement, D2D mobile device 14 is compared measured SINR value with threshold value SINR value.After this, if measured SINR value has surpassed this threshold value SINR value, this D2D equipment can only consider this SINR value reporting to this base station for scheduling.These scheduling are considered to comprise the calculating that utilizes any packet scheduling to calculate, are comprised this PF regulation index.
Referring now to Fig. 6 and Fig. 7, show the flow chart illustrating by the operation of carrying out according to the method for one embodiment of the present invention, device and computer program (such as the device 20 of Fig. 2 and the device 30 of Fig. 3).To understand, in each square frame of this flow chart and this flow chart, the combination of square frame can be implemented by various means, such as hardware, firmware, processor, circuit and/or other equipment of being associated with the execution that comprises the software of one or more computer program instructions.For example, one or more can the enforcement by computer program instructions in above-described program.In this respect, this computer program instructions of implementing above-described these programs can be by the memory device, stores that adopts the device of embodiment of the present invention, and the processor in this device is carried out.
To understand, any this computer program instructions (for example can be loaded into computer or other programmable devices, hardware) upper to produce machine, the enforcement that the computer producing with toilet or other programmable devices are provided for the function of appointment in this (these) flow chart.These computer program instructions also can be stored in non-transient computer-readable memory, its bootable computer or other programmable devices work with ad hoc fashion, so that these instructions of storing in this computer-readable memory generate goods, specified function in the square frame of the execution implementing procedure figure of these goods.
Computer program instructions also can be loaded on computer or other programmable devices, so that the sequence of operation is performed to generate computer-implemented process on this computer or other programmable devices, so that these instructions of carrying out on this computer or other programmable devices are provided for the operation that appointed function in the square frame of (these) flow chart is somebody's turn to do in enforcement.So, Fig. 6 and 7 operation, when being performed, convert computer or treatment circuit to be configured to carry out exemplary embodiment of the invention particular machine.Therefore, the operation of each in Fig. 6 and 7 is defined for the algorithm of configuration computer or treatment circuit to carry out illustrative embodiments, for example, and the processor 34 relevant with the operation of Fig. 6 and the processor 24 relevant with the operation of Fig. 7.In some cases, all-purpose computer can be provided with execution graph 6 and 7 algorithm separately this all-purpose computer is converted to the example of the processor of the particular machine that is configured to carry out illustrative embodiments.
Therefore, the square frame support of this flow chart for carry out appointed function device combination and for carrying out the combination of the operation of appointed function.Also will understand, the combination of square frame in one or more square frames of this flow chart and this flow chart, can implement by carrying out the computer system based on specialized hardware of specified function or the combination of specialized hardware and computer instruction.
Fig. 6 is the flow chart illustrating according to execution mode of present invention, the operation carried out from base station angle.In order to provide Optimized Operation according to embodiment of the present invention, base station 18 and device more generally 30, the total number based on D2D mobile terminal and other mobile terminals, calculates the schedule activities factor (square frame 60) at least in part.For example, as discussed for Fig. 5, can, by the total number divided by D2D mobile terminal and other mobile terminals by the number of D2D mobile terminal, then result be multiplied by 100% and calculate the schedule activities factor, to obtain the percentage that comprises this schedule activities factor.
Once base station 18 calculates the schedule activities factor, install 30 this schedule activities factor is sent to at least one D2D mobile terminal or a plurality of D2D mobile terminal (square frame 62).After this D2D mobile terminal receives this schedule activities factor, device 30 can receive SINR information (square frame 64) from this at least one D2D mobile terminal or a plurality of mobile terminal.The transmission of this SINR information can be carried out after determining the SINR threshold level corresponding to this schedule activities factor with reference to SINR distribution curve at D2D mobile terminal 14.Therefore, if measured SINR surpasses the threshold value SINR level derive, D2D mobile terminal 14 only by SINR information reporting to base station 18.
Except the SINR of the scheduling of the resource of the mobile terminal for the first (D2D) type and Second Type, base station 18 also can be considered other measurements of communication channel quality separately.In this respect, the scheduling of resource also can comprise the CQI (CQI) that base station 18 and the mobile terminal 16 of Second Type are kept for the mobile terminal 14 of the first kind discretely.CQI can comprise any information of describing communication channel quality, or any information relevant with communication channel characteristics.This CQI can for example, based on any one or more in various performance index (comprising SINR).In this respect, the mobile terminal of this first kind and Second Type can report to base station by this CQI, then, base station can by the CQI of the mobile terminal for this first kind and Second Type, together with in scheduling the SINR information during for the resource of various types of terminals include consideration in.
Once base station 18 receives this SINR information, it carries out when the SINR being measured by given D2D mobile terminal has been surpassed to this threshold value SINR, and device 30 can utilize regulation index (such as PF regulation index) to calculate the packet scheduling (square frame 66) for this D2D mobile terminal and other mobile terminals.This regulation index can comprise the packet scheduling index of any type, includes but not limited to PF regulation index.According to the illustrative embodiments shown in Fig. 6, the packet scheduling at least one D2D mobile terminal or a plurality of D2D mobile terminals is calculated discretely with other mobile terminals in base station 18.After this, the packet scheduling information of calculating is sent to this at least one D2D mobile terminal or each D2D mobile terminal, for the communication subsequently of the data from this D2D mobile terminal.
Fig. 7 is the flow chart illustrating according to present invention execution mode, the operation carried out from the angle of D2D mobile terminal 14.For Optimized Operation is provided, D2D mobile terminal 14 and device more generally 20, the total number based on D2D mobile terminal and other-end, receives the D2D schedule activities factor (square frame 70) at least in part.This schedule activities factor can include but not limited to cellular signaling or GPS signaling via any signaling protocol, and from base station, 18 are sent to D2D mobile terminal 14.
Once base station 18 calculates this schedule activities factor, such as 14 of device 20 D2D mobile terminals by coming with reference to SINR distribution curve at least in part based on this D2D schedule activities factor definite threshold SINR value (square frame 72).This SINR distribution curve can be generated by base station 18, D2D mobile terminal 14 or other-end 16, or can be by the solid generation of communication network 10 outsides, and be stored in can be in the memory device of D2D mobile terminal 14 access.Corresponding to this value on vertical axis (this D2D mobile terminal can be by finding on this SINR distribution curve, the 100%-schedule activities factor) primary importance, and then determine on trunnion axis and with definite threshold SINR value, carry out definite threshold SINR value corresponding to the position of this primary importance.
Once D2D mobile terminal 14 has been determined this threshold value SINR value, install 20 and can determine (or reality) SINR value (square frame 74) of measuring by carrying out internal measurement process.In another illustrative embodiments, another equipment or external equipment can calculate the SINR value for the measurement of this D2D mobile terminal.This SINR value comprises the SINR for the measurement of D2D mobile terminal 14.
Once D2D mobile terminal 14 has been determined this SINR value and threshold value SINR value, if this SINR value surpasses this threshold value SINR value, install 20 and can will indicate the data of measured SINR value to send to base station 18(square frame 76).If measured SINR value does not surpass this threshold value SINR value, 14 of D2D mobile terminals do not report to base station 18 by this SINR so, to avoid interference scheduling, calculate.If measured SINR value has really surpassed this threshold value SINR value and has been reported to base station 18, this SINR value is utilized in dispatching calculating by this base station, and this scheduling is calculated and can be included but not limited to PF scheduling calculating.In addition, the SINR reporting also can be used for the D2D link adaptation that base station is controlled.
Various execution mode of the present invention presents lot of advantages with respect to prior art.For example, in comprising D2D mobile terminal and the hybrid communication network such as other mobile terminals of cellular device, packet scheduling will always not be conducive to D2D equipment, and this will cause packet scheduling more fair and more impartial between D2D mobile terminal and other mobile terminals.Therefore, various illustrative embodiments more balancedly to consider for the division of the resource of cellular device and D2D equipment and scheduling to excessively do not dispatch from the mode of the grouping of D2D mobile terminal and carry out PF scheduling with respect to honeycomb or other mobile terminals.
After the instruction occurring in benefiting from description above and accompanying drawing, those skilled in the art in the invention are by of the present invention a lot of modifications of easily expecting setting forth here and other execution modes.Therefore, will understand, these inventions are not limited to disclosed specific implementations, and expection modification is included within the scope of the appended claims with other execution modes.Although adopt concrete term here, they are only with general and descriptive sense and be not that object in order to limit is used.
Claims (25)
1. the method for using in controlling the packet scheduling of hybrid communication network, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, it is characterized in that described method comprises:
The total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type, calculates (60) schedule activities factor at least in part;
Make the schedule activities factor that calculates (62) be sent to the described mobile terminal of the first kind described at least one;
From the mobile terminal of described at least one first kind, receive (64) Signal to Interference plus Noise Ratio (SINR) information;
SINR information based on received at least in part, with mobile terminal for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch (66) for the resource of the mobile terminal of described at least one first kind; And
Described resource based on being scheduled for the mobile terminal of described at least one first kind, makes schedule information be sent to the mobile terminal of described at least one first kind.
2. the method for claim 1, further comprises that the previous SINR measurement based in special time window at least in part generates D2D SINR and distributes.
3. as claim 1 or method claimed in claim 2, wherein scheduling comprise with the mobile terminal of described Second Type or described in each the mobile terminal of Second Type be kept for discretely the CQI (CQI) of the mobile terminal of the described first kind.
4. as method in any one of the preceding claims wherein, the schedule activities factor wherein calculated is sent to the mobile terminal of described at least one first kind by cellular signaling.
5. if claim 1 is to the method as described in any one in claim 3, the schedule activities factor wherein calculated connects the mobile terminal that is sent to described at least one first kind via device-to-device.
6. as method in any one of the preceding claims wherein, comprise the described total number divided by the mobile terminal of the described first kind and the mobile terminal of described Second Type by the number of the mobile terminal of the described first kind, thereby calculate the described schedule activities factor.
7. as method in any one of the preceding claims wherein, the mobile terminal of wherein said Second Type or described in each the mobile terminal of Second Type comprise cellular terminal.
8. the method for using in controlling the packet scheduling of hybrid communication network, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, it is characterized in that described method comprises:
Receive (70) schedule activities factor, the described schedule activities factor is the total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type at least in part;
By contrast signal and interference plus noise, than (SINR), distribute, at least in part based on the described schedule activities factor, determine (72) threshold value SINR value;
Assessment (74) is for the SINR value of the measurement of the mobile terminal of the described first kind; And
The SINR value of described measurement therein surpasses in the situation of described threshold value SINR value, make to indicate the data of the SINR of described measurement to be transmitted (76), described data for the mobile terminal with for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch for the resource of the mobile terminal of described at least one first kind and use.
9. method as claimed in claim 8, the SINR that wherein said SINR is distributed to small part based in special time window measures.
10. method as claimed in claim 8 or claim 9, the wherein said schedule activities factor is received by cellular signaling.
11. if claim 8 is to the method as described in any one in claim 10, further comprises from base station receiving scheduling information.
12. if claim 8 is to the method as described in any one in claim 11, the mobile terminal of wherein said Second Type or described in each the mobile terminal of Second Type comprise cellular terminal.
13. 1 kinds of devices (18 for using in controlling the packet scheduling of hybrid communication network, 30), described hybrid network comprises the mobile terminal (14 of at least one first kind, 20) and the mobile terminal (16 of at least one Second Type, 20), the mobile terminal (14 of the wherein said first kind, 20) be the mobile terminal (16 of device-to-device (D2D) mobile terminal and described Second Type, 20) be different from the mobile terminal (14 of the described first kind, 20), it is characterized in that described device (18, 30) comprise treatment system (32), described treatment system (32) is configured to:
The total number of the mobile terminal (16,20) of the mobile terminal based on the described first kind (14,20) and described Second Type, calculates the schedule activities factor at least in part;
Make the calculated schedule activities factor be sent to the described mobile terminal (14,20) of the first kind described at least one;
From the mobile terminal (14,20) of described at least one first kind, receive Signal to Interference plus Noise Ratio (SINR) information;
SINR information based on received at least in part, with for the mobile terminal of described Second Type or the mobile terminal (16 of Second Type described in each, 20) the resource separation ground scheduling of using is for the resource of mobile terminal (14, the 20) use of described at least one first kind; And
Described resource based on being scheduled for the mobile terminal (14,20) of described at least one first kind, makes schedule information be sent to the mobile terminal (14,20) of described at least one first kind.
14. devices as claimed in claim 13 (18,30), wherein said treatment system (32) is configured to the previous SINR measurement based in special time window at least in part and generates D2D SINR distribution.
15. devices (18 as described in claim 13 or claim 14,30), wherein said treatment system (32) is configured to and the mobile terminal of described Second Type or the mobile terminal (16 of Second Type described in each, 20) be kept for discretely the CQI (CQI) of the mobile terminal (14,20) of the described first kind.
16. if claim 13 is to the device (18,30) as described in any one in claim 15, and wherein said treatment system (32) is configured such that the described schedule activities factor is sent to the mobile terminal (14,20) of the described first kind by cellular signaling.
17. if claim 13 is to the device (18 as described in any one in claim 15,30), wherein said treatment system (32) is configured such that the described schedule activities factor connects the mobile terminal (14,20) that is sent to the described first kind via device-to-device.
18. if claim 13 is to the device (18 as described in any one in claim 17,30), wherein said treatment system (32) is configured to the mobile terminal of the described first kind (14,20) number is divided by the mobile terminal (14 of the described first kind, 20) and the described total number of the mobile terminal of described Second Type (16,20).
19. 1 kinds of devices (14 for using in controlling the packet scheduling of hybrid communication network, 16, 20), described hybrid network comprises the mobile terminal (14 of at least one first kind, 20) and the mobile terminal (16 of at least one Second Type, 20), the mobile terminal (14 of the wherein said first kind, 20) be the mobile terminal (16 of device-to-device (D2D) mobile terminal and described Second Type, 20) be different from the mobile terminal (14 of the described first kind, 20), it is characterized in that described device (14, 16, 20) comprise treatment system (22), described treatment system (22) is configured to:
Receiving scheduling activity factor, the described schedule activities factor is the total number of the mobile terminal (16,20) of the mobile terminal based on the described first kind (14,20) and described Second Type at least in part;
By contrast signal and interference plus noise, than (SINR), distribute, at least in part based on the described schedule activities factor, definite threshold SINR value;
Assessment is for the SINR value of the measurement of the mobile terminal (14,20) of the described first kind; And
The SINR value of described measurement therein surpasses in the situation of described threshold value SINR value, makes to indicate the data of the SINR of described measurement to be transmitted,
Wherein said data for for the mobile terminal of described Second Type or the mobile terminal (16 of Second Type described in each, 20) in the resource of the resource separation ground scheduling of using for mobile terminal (14, the 20) use of described at least one first kind, use.
20. devices as claimed in claim 19 (14,16,20), the D2D SINR that wherein said SINR is distributed to small part based in special time window measures.
21. devices (14,16,20) as described in claim 19 or claim 20, wherein said treatment system (22) is configured to receive the described schedule activities factor by cellular signaling.
22. if claim 19 is to the device (14,16,20) as described in any one in claim 21, and wherein said treatment system (22) is configured to from base station receiving scheduling information.
23. as device in any one of the preceding claims wherein (14,16,20), and wherein said device (14,16,20) comprises mobile terminal.
24. 1 kinds of computer programs or computer program external member, comprise instruction set, described instruction set is stored on computer-readable medium, for using in controlling the packet scheduling of being carried out by the computing system of hybrid network, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, it is characterized in that described instruction set makes described computing system carry out following steps when being performed:
The total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type, calculates (60) schedule activities factor at least in part;
Make the schedule activities factor that calculates (62) be sent to the described mobile terminal of the first kind described at least one;
From the mobile terminal of described at least one first kind, receive (64) Signal to Interference plus Noise Ratio (SINR) information;
SINR information based on received at least in part, with mobile terminal for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch (66) for the resource of the mobile terminal of described at least one first kind; And
Described resource based on being scheduled for the mobile terminal of described at least one first kind, makes schedule information be sent to the mobile terminal of described at least one first kind.
25. 1 kinds of computer programs or computer program external member, comprise instruction set, described instruction set is stored on computer-readable medium, for using in controlling the packet scheduling of being carried out by the subscriber equipment of hybrid network, described hybrid network comprises the mobile terminal of at least one first kind and the mobile terminal of at least one Second Type, the mobile terminal of the wherein said first kind is the mobile terminal that the mobile terminal of device-to-device (D2D) mobile terminal and described Second Type is different from the described first kind, it is characterized in that described instruction set makes described subscriber equipment carry out following steps when being performed:
Receive (70) schedule activities factor, the described schedule activities factor is the total number of the mobile terminal of the mobile terminal based on the described first kind and described Second Type at least in part;
By contrast signal and interference plus noise, than (SINR), distribute, at least in part based on the described schedule activities factor, determine (72) threshold value SINR value;
Assessment (74) is for the SINR value of the measurement of the mobile terminal of the described first kind; And
The SINR value of described measurement therein surpasses in the situation of described threshold value SINR value, make to indicate the data of the SINR of described measurement to be transmitted (76), described data for the mobile terminal with for described Second Type or described in each the mobile terminal of Second Type resource separation dispatch for the resource of the mobile terminal of described at least one first kind and use.
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| US13/180,033 US8675580B2 (en) | 2011-07-11 | 2011-07-11 | Method and apparatus for facilitating packet scheduling for a hybrid communication network |
| GB1111854.4A GB2493131B (en) | 2011-07-11 | 2011-07-11 | Packet scheduling in a communication network |
| US13/180,033 | 2011-07-11 | ||
| GB1111854.4 | 2011-07-11 | ||
| PCT/IB2012/053492 WO2013008167A1 (en) | 2011-07-11 | 2012-07-09 | Packet scheduling in a cellular communication network for the purpose of device -to -device communications |
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| CN103688587A true CN103688587A (en) | 2014-03-26 |
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| US20140160946A1 (en) * | 2012-12-06 | 2014-06-12 | Qualcomm Incorporated | Methods and apparatus for improving centralized d2d scheduling |
| JP6239270B2 (en) | 2013-05-29 | 2017-11-29 | 京セラ株式会社 | Base station, user terminal and processor |
| JP6466568B2 (en) | 2014-05-08 | 2019-02-06 | テレコム・イタリア・エッセ・ピー・アー | Resource allocation system and method adapted for implementation of inter-device communication in a wireless communication network |
| CN106231620A (en) * | 2016-07-22 | 2016-12-14 | 哈尔滨工业大学 | In a kind of cellular network, the joint Power of D2D communication controls and the method for Proportional Fair |
| JP6382429B2 (en) * | 2017-11-01 | 2018-08-29 | 京セラ株式会社 | Base station, user terminal, processor, and method |
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| EP1679933B1 (en) * | 2003-09-30 | 2009-07-01 | Mitsubishi Denki K.K. | Mobile communication system for controlling communication mode |
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| CN1866810A (en) * | 2006-03-28 | 2006-11-22 | 华为技术有限公司 | Method and apparatus for realizing high-speed downlink packet dispatching |
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