CN102067480B - The method of delivering power rising space report in wireless communication system - Google Patents
The method of delivering power rising space report in wireless communication system Download PDFInfo
- Publication number
- CN102067480B CN102067480B CN200980122806.5A CN200980122806A CN102067480B CN 102067480 B CN102067480 B CN 102067480B CN 200980122806 A CN200980122806 A CN 200980122806A CN 102067480 B CN102067480 B CN 102067480B
- Authority
- CN
- China
- Prior art keywords
- phr
- power headroom
- resource
- headroom reporting
- control element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000000630 rising effect Effects 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 title claims description 15
- 230000001960 triggered effect Effects 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 30
- 230000009194 climbing Effects 0.000 claims description 11
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 abstract description 27
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 38
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of from the evolved universal GSM E-UMTS of UMTS UMTS evolution or Long Term Evolution LTE system from terminal to base station the method for transmitted power rising space report effectively, more particularly, the present invention relates to a kind of determine whether to have triggered power headroom reporting and determine the ascending resource distributing whether hold medium access control MAC control element after, the method for power headroom reporting is provided.
Description
Technical field
The present invention relates to a kind of wireless communication system and terminal that radio communication service is provided, and relate to and moving from generalEvolved universal GSM (E-UMTS) or the Long Term Evolution (LTE) of moving communication system (UMTS) evolutionThe method that base station in system and terminal transmit and receive data, more particularly, the present invention relates to from this terminal to thisBase station is the method for transmitted power rising space report (PHR:powerheadroomreport) effectively.
Background technology
Fig. 1 shows as a kind of E-UMTS's that can be applicable to prior art and GSM of the present inventionNetwork structure. E-UMTS system is from UMTS system evolved, and 3GPP is continuing to prepare fundamental norms for this reason.E-UMTS system can be divided into LTE (Long Term Evolution) system.
E-UMTS network can be divided into evolution UMTS Terrestrial radio access network (E-UTRAN) and core net (CN).E-UTRAN comprises terminal (hereinafter referred to as " UE (subscriber equipment) "), base station (hereinafter referred to as eNodeB), positionIn network one end and be connected to external network gateway (S-GW) and supervision UE ambulant mobilityManagement entity (MME). Can there is one or more community for single eNodeB.
Fig. 2 and Fig. 3 illustrate Radio interface protocols between UE and the base station based on 3GPP wireless access network specificationFramework. The level course of Radio interface protocols comprises physical layer, data link layer and Internet, and, wave pointThe vertical plane of agreement comprises user's face for sending data message and the chain of command for transmit control signal (signaling).Three layers, the end that can be based on known Open System Interconnection (OSI) master pattern in communication system, is by each protocol layerBe divided into ground floor (L1), the second layer (L2) and the 3rd layer (L3).
To each layer of the wireless protocols chain of command in Fig. 2 and the radio protocol user plane in Fig. 3 be described below.
Physical layer (, ground floor (L1)) provides information transfer service with physical channel to upper strata. Physical layerBe connected to the upper strata that is called medium access control (MAC) layer through transmission channel, and process transmission channel is at MACBetween layer and physical layer, transmit data. In addition, between different physical layers, (that is to say, at the physics of sending sideBetween layer and the physical layer of receiver side), transmit data through physical channel.
The MAC layer of the second layer provides service through logic channel to Radio Link control (MAC) layer as upper strata.The rlc layer of the second layer can be supported reliable transfer of data. The PDCP layer of the second layer carries out header compression function,To reduce the IP grouping header size of (this IP grouping comprises sizable and unnecessary control information), exist thusIn the relatively little wave point of bandwidth, effectively send IP grouping (such as IPv4 or IPv6).
Only in chain of command, define Radio Resource control (RRC) layer of the bottommost that is positioned at the 3rd layer, and RRCLayer is responsible for the configuration of radio bearer (RB), is reconfigured and discharge explicitly to logic channel, transmission letterRoad and physical channel are controlled. " radio bearer " refer to provided by the second layer (L2), for UE and UTRANBetween the service of transfer of data.
As mentioned above, base station and UE are two main entities that form E-UTRAN. Wireless money in single subdistrictSource comprises ascending wireless resource and downlink resource. Ascending wireless resource and the downlink radio resource that be responsible for community base station are enteredRow distributes and controls. That is to say, base station determines which Radio Resource when which UE use. For example, base station canDistribute the frequency from 100MHz to 101MHz to determine at 3.2 seconds rear lines 1, to carry out downlink data biographySend. Make after this determines in base station, can correspondingly notify UE, make this UE can downlink data receiving.In addition, base station can determine when to allow which Radio Resource of which how much quantity of UE to send upstream data,Then correspondingly notify corresponding UE, make this UE to send data with Radio Resource in the corresponding time. ?In prior art, single terminal continues to use single Radio Resource during call connection, and still, this is for major partFor the nearest business based on IP grouping unreasonable. That is to say, in most of Packet Services, grouping is notDuring call connection, generate continuously, on the contrary, during calling out, exist the interval of not carrying out sending. Thus, toSingle terminal continuous dispensing Radio Resource is poor efficiency. In order to address this problem, below E-UTRAN system adoptsThis method, wherein, only when UE requires when Radio Resource or only in the time there is business datum just in the manner described aboveCarry out distributing radio resource.
Conventionally, dynamic radio resource scheduling is the wireless money that notice will be used in the time that each UE sends or receivesThe method in source. Fig. 4 is the exemplary plot that the operation of dynamic radio resource distribution is shown. Conventionally, through physical down controlChannel (PDCCH) send ascending wireless resource distribute (for example, ULGRANT) (UL mandate) message orPerson's downlink radio resource is distributed (for example, DLASSIGNMENT) (DL distribution) message. Therefore, UE is respectivelyThe individual appointment moment receives or monitors PDCCH. For example, when receiving distributed UE identifier (, C-RNTI)Time, UE receives or sends by the ULGRANT sending by PDCCH or DLASSIGNMENTIndicated Radio Resource, then uses this Radio Resource to make it possible to carrying out data between UE and eNodeBSending/receiving.
More particularly, in LTE system, in order effectively to use Radio Resource, each use should be known in base stationFamily wishes to send which data of how much quantity. The in the situation that of downlink data, by downlink data from IAD transmissionTo base station. Thus, the data that should transmit by downlink how much quantity to each user are known in base station. In addition,The in the situation that of upstream data, if UE directly do not provide to base station with UE wish to up-link sendThe information that data are relevant, base station can not know each UE requires the ascending wireless resource of how much quantity. Therefore, forTo make base station can be in a suitable manner be that UE distributes ascending wireless resource, each UE should provide base station to base stationThe desired information of scheduling Radio Resource.
For this reason, in the time that UE has the data that will send, this UE provides corresponding information to base station, and this base station baseCome to transmit resource allocation message to UE in the information receiving.
In this process, (that is to say, in the time that this UE of UE informing base station has the data that will send), UE is delayedRushing the data volume of accumulating in device notifies to base station. This is called " buffer state reports (BSR) ".
BSR generates according to the form of MAC control element, is included in MACPDU, and sends from UETo base station. That is to say, BSR transmission needs ascending wireless resource, this means should send for BSR and transmitsAscending wireless resource assignment request information. If distributed ascending wireless resource, UE in the time generating BSRSend BSR with this ascending wireless resource. UE sends process from BSR to base station is called " BSR process ". ?Following situation starts BSR process: 1) in the time that each buffer does not have data and data and recently arrives buffer;2) when data arrive specific empty buffer, and, the priority of the logic channel relevant with this buffer higher thanWhen the priority of the logic channel relevant with the buffer previously with data; And 3) in the time of cell change. At this point, in the situation that BSR process has triggered, in the time distributing ascending wireless resource, if can pass through this nothingBut line resource is carried out this Radio Resource of total data of transmission buffer and is not enough to additionally comprise BSR, UE cancelsThe BSR process having triggered.
At this, power headroom reporting (PHR) also can depart from BSR and exist. Power headroom reportingNotify or indicated terminal can use how many extra power. That is to say, PHR can represent that terminalPower deviation between possibility transmitting power and the current transmit power of terminal greatly. This can also be defined as forDifference between nominal UE maximum transmission power and the estimating power of UL-SCH transmission.
Terminal sends main cause from PHR to base station is the Radio Resource appropriate for this terminal distribution. For example, supposeThe maximum transmission power of terminal is 10W, and this terminal is current in the situation that using 10MHz frequency range, makesUse 9W power stage. If 20MHz frequency range is distributed to this terminal, this terminal needs 18W power(9Wx2). But, because the maximum transmit power limit of this terminal is at 10W, so, if by 20MHzFrequency range is distributed to this terminal, and this terminal can not be used whole frequency range, or, due to the shortage of power,Base station can not receive signal from this terminal.
Most of current message volumes are the Internet services based on modern science and technology. In addition, in Internet service, useA characteristic of data be to generate suddenly these data and be difficult to expection. In addition, the data volume of generation be also burst andNot predictable. Therefore, have suddenly the data that need to send in terminal, if base station has in advanceFrom the information relevant to PHR of this terminal, this base station is more easily the appropriate Radio Resource of this terminal distribution. ?This, and not according to reliable mode, PHR self is sent to base station. That is to say, be not to send from terminalAll PHR can successfully be received by base station. Therefore in the prior art, periodic PHR transmits. ToolSay body, timer of this terminal operating (, periodically PHR timer), and, as long as this timer arrivesWhen phase, just send PHR to base station.
In the prior art, in the time that this periodical timer expires, this terminal triggers periodically PHR. If actualOn sent periodically PHR, this terminal restarts this periodical timer. At this, when this terminal measuredPath loss variation while exceeding threshold value, also trigger PHR.
As mentioned above, in the time that periodical timer expires, this terminal sends new PHR to base station, and then, this eventuallyEnd periodically restarts this periodical timer. In addition, this terminal persistent surveillance path loss, then, works as instituteWhen the path loss variation monitoring exceeds threshold value, this terminal sends new PHR.
Fig. 5 is according to the exemplary diagram of the transmitted power rising space report (PHR) of prior art. As shown in Figure 5,If due to the transmission moment of the caused new PHR of path loss variation with due to periodical timer expire causeTransmission moment of new PHR relatively approaching, in the transmission moment due to the caused new PHR of path loss variationPath loss variation is afterwards not remarkable. Therefore, be included in because this periodical timer expires caused newInformation in PHR be included in because the information in the caused new PHR of path loss variation is not very notWith. This may cause a large amount of waste of radio resources. That is to say, in the prior art, exist at PHR and passSend the defect that uses unnecessary (multinomial) Radio Resource during process.
Summary of the invention
Therefore, the object of this invention is to provide a kind of through improved, from terminal to base station effectively transmitted power go up to the airBetween the method for report, avoid thus the unnecessary Radio Resource causing due to prior art to use.
In order to realize these and other advantage, and according to object of the present invention, as also extensively described this concrete enforcement, provide a kind of method that power headroom reporting (PHR) is provided in wireless communication system, the method bagDraw together following steps: determine whether to have triggered power headroom reporting; If determine that having triggered at least one power risesSpace report, determines whether the ascending resource distributing holds the medium relevant with described power headroom reporting and visitAsk control (MAC) control element; And if determine that the ascending resource that distributes holds described MAC control element,The value based on power climbing space sends this MAC control element.
By reference to the accompanying drawings, according to following detailed description of the present invention, above and other objects of the present invention, feature, sideIt is more obvious that face and advantage will become.
Brief description of the drawings
The accompanying drawing comprising is for a further understanding of the present invention is provided, and is incorporated to the application and forms the application'sPart, accompanying drawing is used from and explains principle of the present invention exemplified with embodiments of the present invention and with this description one.
In the accompanying drawings:
Fig. 1 illustrates the net as a kind of E-UMTS that can be applicable to prior art and GSM of the present inventionNetwork structure;
Fig. 2 illustrates the UE based on 3GPP wireless access network standard and the UTRAN (UMTS according to prior artLand radio access web) between the example arrangement of chain of command of Radio interface protocols;
Fig. 3 illustrates according to the nothing between UE and the UTRAN based on 3GPP wireless access network standard of prior artThe example arrangement of user's face of line interface agreement;
Fig. 4 is the exemplary diagram that the operation of dynamic radio resource distribution is shown;
Fig. 5 is according to the exemplary diagram of the transmitted power rising space report (PHR) of prior art; And
Fig. 6 is according to the exemplary diagram of transmitted power rising space report of the present invention (PHR).
Detailed description of the invention
An aspect of the present disclosure relates to the understanding of the inventor to the problems referred to above in prior art, and below do intoOne step is explained. Based on this understanding, develop each feature of the present disclosure.
Although the disclosure is to realize in GSM (such as according to the UMTS of 3GPP specification exploitation),That the disclosure also can be applied to other communication system of following other standards and norms and work.
Hereinafter, come being with reference to the accompanying drawings described according to the structure of the preferred embodiment of the present invention and operation.
Conventionally,, for (multinomial) Radio Resource of avoiding waste, base station may need to know the power climbing space of terminalReport (PHR) is (multinomial) Radio Resource that this terminal distribution is suitable thus. On power according to the present inventionBetween lift-off, reporting process is described below. First, power headroom reporting process is triggered by following condition: 1) ifAfter PHR transmits, path loss variation exceeds threshold value; 2) if periodically PHR timer expires; Or 3)If periodicity PHR process or PHR function are configured or are reshuffled.
If power headroom reporting process is triggered by above a kind of condition, this terminal can be in the current transmission timeDuring interval (TTI) to whether existing any newly assigned (multinomial) ascending resource to check. Divide if existed(multinomial) ascending resource of joining, this terminal can be from physical layer received power rising space value. Afterwards, this terminalCan order multiplexing and encapsulate (MA:multiplexingandassembly) entity based on this power climbing space valueAnd generation PHRMAC control element (CE). During said process, if PHR is periodicity PHR,Periodically PHR timer restarts.
Conventionally, medium access control (MAC) layer is made up of multiple entities, and each in the plurality of entity held respectivelyThe function that row is set. In the plurality of entity, there is multiplexing and encapsulation (MA) entity. MA entity is determined conventionallyWhich transfer of data how to use distributed Radio Resource for. In addition, MA entity can be determined based on thisAnd generate or configuration Medium Access Control (MAC) Protocol Data Unit (PDU). For example, if receiving, terminal allows to send 200The Radio Resource of individual data bit, and, if the first logic channel has 150 data bits that can sendTwo logic channel has 150 data bits that can send in addition, and can configure should be from each logic for MA entityChannel uses the data of how much quantity, then, can generate MACPDU based on this configuration. Conventionally, evenDistributed (multinomial) Radio Resource, still, always do not send the whole storages in each logic channel data orWhole MACCE (control element) that person generates in MAC entity. That is to say, in the time having triggered PHR,Even if MAC entity receives distributed (multinomial) Radio Resource, still, always do not pass through distributed yet(multinomial) Radio Resource sends this PHR. In other words, if MA entity determines its of transmission high priorityIts data instead of PHRMACCE, MACPDU does not comprise PHR. In the case, due to base stationCan not receive PHR from this terminal, so also distributing radio resource suitably.
As mentioned above, disclosure suggestion provides a kind of from terminal transmitted power rising space report effectively to base station(PHR) method.
Fig. 6 is according to the exemplary diagram of transmitted power rising space report of the present invention (PHR).
As shown in Figure 6, according to the present invention, as long as terminal has sent PHR (or periodicity PHR) during to base station,This terminal just can restart periodically PHR timer. In addition, when because path loss variation causes PHRWhen transmission, this terminal can be restarted periodically PHR timer. In Fig. 6, according to prior art, because the cycleProperty PHR timer expires at moment B, so must PHR be sent to base station at moment B. But, due toPeriodically PHR timer transmits the moment at the caused PHR of path loss variation and restarts, thus not timeCarve B PHR is sent to base station, but the overdue moment C of periodical timer after restarting is by PHRSend to base station. Therefore the quantity that, the invention enables unnecessary PHR to transmit minimizes.
Therefore, the first embodiment of power headroom reporting process according to the present invention is described below. First,Power headroom reporting process is triggered by following condition: 1) if path loss variation exceeds after PHR transmitsThreshold value; 2) if periodically PHR timer expires; Or 3) if to periodicity PHR process or PHRFunction is configured or reshuffles.
If power headroom reporting process is triggered by above a kind of condition, this terminal can be in the current transmission timeDuring interval (TTI) to whether existing any newly assigned (multinomial) ascending resource to check. Divide if existed(multinomial) ascending resource of joining, this terminal can be from physical layer received power rising space value. Afterwards, this terminalCan order multiplexing and encapsulation (MA) entity generate PHRMAC control element based on this power climbing space value(CE). During said process, if PHR is periodicity PHR, periodically PHR timer restarts.
In addition, the present invention's suggestion is based on definite power climbing space that carries out multiplexing and that encapsulation (MA) entity is madeReporting process. More particularly, MA entity determines whether new MACPDU can hold PHRMAC and controlElement (or MACPHRCE). If determine that this new MACPDU can not hold PHRMACCE,Do not trigger PHR process. In the case, PHRMACCE is not included in this new MACPDU.On the contrary, if this new MACPDU can hold PHRMACCE, can trigger PHR process, andCan after considering additional conditions, send PHR. In the case, periodically PHR timer restarts, willPHRMACCE is included in this new MACPDU, and sends this new MACPDU.
In addition,, if distributed new (multinomial) ascending resource, MA entity can be determined and should distribute by new(multinomial) ascending resource send the data of which logic channel or send which MACCE. Make definiteAfterwards, if MACPDU accommodates MACPHRCE, MA entity can be by this advisory to PHRProcess. Based on this notice, PHR process can be in the situation that considering path loss or periodicity PHR timerDetermine whether to trigger PHR. If triggered PHR, order MA entity that PHR is included in MACPDU.That is to say, if there is MACPHRCE and newly assigned (multinomial) resource of triggering, and if new(multinomial) resource of distributing can be held this MACPHRCE, this MACPHRCE is included in to MACPDUIn, and send afterwards this MACPDU.
Therefore, the second embodiment of power headroom reporting process according to the present invention is described below. First,Power headroom reporting process is triggered by following condition: 1) if path loss variation exceeds after PHR transmitsThreshold value; 2) if periodically PHR timer expires; Or 3) if to periodicity PHR process or PHRFunction is configured or reshuffles.
If power headroom reporting process is triggered by above a kind of condition, this terminal can be to the PHR nearestWhether after transmitting, exist any new PHR to transmit checks. Afterwards, if exist new PHR to transmit,Whether this terminal can to existing any newly assigned (multinomial) ascending resource to check. If exist newly assigned(multinomial) ascending resource, this terminal can be determined result (, the priority of logical channels as priority deciding grade and levelDeciding grade and level (logicalchannelprioritization)), send by newly assigned (multinomial) ascending resourceWhether MACPDU can hold PHRMACCE. Then, if newly assigned resource can be held PHRMACCE, this terminal can be from physical layer received power rising space value. Afterwards, this terminal can be ordered multiplexing and envelopeDress (MA) entity generates PHRMAC control element (CE) based on this power climbing space value. Then, shouldTerminal can restart periodically PHR timer, and can be after restarting periodicity PHR timerCancel whole PHR.
In addition, the present invention's suggestion considers that during power headroom reporting process PHR arranges type. Specifically,If the setting for PHR process changes, based on PHR, type is set and determines whether to trigger PHR. MoreSpecifically, if PHR is arranged and changed by upper strata (, rrc layer), the present invention advises thisWhether the variation that PHR arranges has indicated termination PHR process to determine. Afterwards, if PHR arrange variation refer toShow and stopped this PHR process, do not triggered PHR. On the contrary, if the variation that PHR arranges does not indicate termination to be somebody's turn to doPHR process, can trigger PHR.
Therefore, the 3rd embodiment of power headroom reporting process according to the present invention is described below. First,Power headroom reporting process is triggered by following condition: 1) if path loss variation exceeds after PHR transmitsThreshold value; 2) if periodically PHR timer expires; 3) in the time of configuration PHR function; Or 4) when reshufflingWhen PHR function, wherein, this PHR reshuffles and is not used in forbidding PHR function.
If power headroom reporting process is triggered by above a kind of condition, this terminal can be to the PHR nearestWhether after transmitting, exist any new PHR to transmit checks. Afterwards, if exist new PHR to transmit,Whether this terminal can to existing any newly assigned (multinomial) ascending resource to check. If exist newly assigned(multinomial) ascending resource, this terminal can be determined as priority deciding grade and level (, priority of logical channels deciding grade and level)Result, whether the MACPDU that send by newly assigned (multinomial) ascending resource can hold PHRMACCE. Then,, if newly assigned resource can be held PHRMACCE, this terminal can be from physical layerReceived power rising space value. Afterwards, this terminal can be ordered multiplexing and be encapsulated (MA) entity based on this powerRise spatial value and generate PHRMACCE control element (CE). Then, this terminal can restart periodicallyPHR timer, and can after restarting periodicity PHR timer, cancel whole PHR.
At this, the PHRMACCE described in the disclosure is identified by the MACPDU sub-header with LCID,And there is fixed size and formed by single eight tuples.
In addition, as mentioned above, power headroom reporting (PHR) process is for providing with up to service eNBThe nominal UE maximum transmission power of (, UL-SCH) transmission is with the relevant information of the difference between estimating power.RRC is by arranging these two timers of periodicPHR-Timer and prohibitPHR-Timer and passing by signalSend path loss (, dl-PathlossChange) (this path loss set measured downlink path-loss withTrigger PHR), carry out the report of the power ratio control rising space.
According to the present invention, process content is following content:
If following any one event occurs, should trigger power headroom reporting (PHR):
-prohibitPHR-Timer expires or expires, and the UL that is useful on new transmission as UE provides, exceed dl-PathlossChangedB from having transmitted the path loss variation that PHR starts when in the source;
-periodicPHR-Timer expires;
-when by upper strata [8], power headroom reporting function being configured or reshuffling (this configuration or reshuffleAnd be not used in forbidding this power headroom reporting function) time.
If UE has the UL resource of distributing for new transmission for this TTI:
If determining ,-power headroom reporting process starts to trigger at least one from last transmission PHRPHR, or determine that this is to trigger first PHR, and;
-if as the result of priority of logical channels deciding grade and level, the UL resource of distributing can be held PHRMACControl element:
-obtain the value of power climbing space from physical layer;
-order this value multiplexing and that encapsulation process is reported based on physical layer to generate and send PHRMAC control unitElement;
-start or restart periodicPHR-Timer;
-start or restart prohibitPHR-Timer;
(multiple) PHR that-cancellation all triggers.
The disclosure can provide a kind of method that power headroom reporting (PHR) is provided in wireless communication system,The method comprises the following steps: determine whether to have triggered power headroom reporting; If determine and triggered at least onePower headroom reporting, determines whether the ascending resource distributing holds relevant with described power headroom reportingMedium access control (MAC) control element; And if determine that the ascending resource distributing holds MAC and controlsElement, the value based on power climbing space sends this MAC control element, wherein, this MAC control elementBe included in Medium Access Control (MAC) Protocol Data Unit (PDU); This MAC control element is PHRMAC control element;This power headroom reporting is by path loss variation, for the periodical timer of PHR transmission and to PHRThe configuration of function or reshuffle at least one trigger; If described path loss variation exceeds threshold value, touchSend out this power headroom reporting; If the periodical timer that should transmit for PHR expires, trigger described meritThe report of the rate rising space; If that has used this PHR function reshuffles to forbid this PHR function, do not trigger thisPower headroom reporting; As the result of priority of logical channels deciding grade and level, the ascending resource distributing accommodates thisMAC control element; And the value of this power climbing space obtains from physical layer.
Although the present invention is described under the environment of mobile communication, the present invention can also use mobile establishingAny channel radio of standby (being for example equipped with PDA and the notebook of wireless communication ability (, interface))In communication system, use. In addition the use that, is used for describing term of the present invention is not to limit the scope of the present invention toThe wireless communication system of particular type. The present invention is also applicable to use other nothing of different air interfaces and/or physical layerLine communication system, for example TDMA, CDMA, FDMA, WCDMA, OFDM, EV-DO, Wi-Max,Wi-Bro etc.
Illustrative embodiments can be used as to be held with the method for standard program and/or engineering, device or goodsRow is to produce software, firmware, hardware or their any combination. " goods " used herein word relates at hardwareThe code of realizing in logic or logic (for example, IC chip, field programmable gate array (FPGA), specificPurposes integrated circuit (ASIC) etc.) or computer-readable medium (for example, (for example, hard disk drives magnetic storage mediumMoving device, floppy disk, tape etc.), optical memory (CD-ROM, CD etc.), volatibility and non-volatile memory device(for example, EEPROM, ROM, PROM, RAM, DRAM, SRAM, firmware, FPGA etc.)).
Code in computer-readable medium can be by processor access and operation. In addition, can also pass through transmission mediumOr file server from network has wherein been embodied the code of illustrative embodiments. In this case,The goods of wherein carrying out this code can comprise transmission medium, for example Network transmission line, wireless transmission medium, space letterNumber propagation, radio wave, infrared signal etc. Certainly, those skilled in the art will understand, do not depart from of the present inventionIn the situation of scope, can make multiple amendment to this configuration, and goods can comprise any letter as known in the artBreath bearing medium.
Because can implement this according to various forms in the situation that not departing from spirit of the present invention or inner characteristicBright, thus it is also understood that except as otherwise noted, otherwise above-mentioned embodiment is not limited to any thin of above stated specificationJoint, but should in the defined spirit and scope of claims, carry out the understanding of broad sense. Therefore, appended powerProfit requires to be intended to contain in the equivalents that falls into claims scope and border or this scope and borderAll change and modification.
Claims (10)
1. the method that power headroom reporting PHR is provided in wireless communication system, the method comprises followingStep:
Determine whether to have triggered described power headroom reporting, wherein said power headroom reporting by upper strata to meritThe configuration of rate rising space function of reporting or reshuffle triggering, described configuration or reshuffle and be not used in and forbid described powerRising space function of reporting;
Determine whether user equipment (UE) has the up money of distributing for the new transmission of current transmission time interval TTISource;
As the result of priority of logical channels deciding grade and level, determine whether the up UL resource of distributing is held PHR and be situated betweenMatter access control MAC control element CE;
If determine that at least one PHR will be triggered, described UE has the new transmission for described current TTIThe UL resource of distributing, and the result of defining the level as priority of logical channels, if determine the UL resource of distributingCan hold described PHRMACCE, from the value of the physical layer received power rising space, based on from described physicsThe value of the described power climbing space that layer obtains generates and sends this PHRMAC control element, and is sending instituteState start-up period PHR timer after PHRMAC control element, wherein, described PHRMAC control elementBe included in Medium Access Control (MAC) Protocol Data Unit PDU;
As the result of priority of logical channels deciding grade and level, if definite UL resource of distributing can not be held described PHRMACCE, does not trigger described PHR, and described PHRMAC control element is not included in to described MACIn protocol Data Unit PDU.
2. method according to claim 1, wherein, described power headroom reporting is to be become by path lossPeriodical timer and the configuration to PHR function of changing, transmit for PHR or reshuffle at least oneIndividual triggering.
3. method according to claim 2, wherein, if described path loss variation exceeds threshold value, touchesSend out power headroom reporting described.
4. method according to claim 2, wherein, if the described periodical timer transmitting for PHRExpire, trigger described power headroom reporting.
5. method according to claim 2, wherein, if used described PHR function reshuffle prohibitBy this PHR function, do not trigger described power headroom reporting.
6. for a user equipment (UE) of power headroom reporting PHR is provided at wireless communication system, be somebody's turn to doUE comprises:
Processor, this processor is configured to:
Determine whether to have triggered described PHR, wherein said PHR is the configuration to PHR function or reprovision by upper strataPut triggering, described configuration or reshuffle and be not used in and forbid described PHR function;
Determine whether user equipment (UE) has distribute for the new transmission of current transmission time interval TTI upperRow resource;
As the result of priority of logical channels deciding grade and level, determine whether the up UL resource of distributing holds PHRMedium access control MAC control element CE;
If determine that at least one PHR will be triggered, described UE has new for described current TTITransmit the UL resource of distributing, and the result of defining the level as priority of logical channels, distribute if definiteUL resource can be held described PHRMACCE, from the value of the physical layer received power rising space, based onThe value of the described power climbing space obtaining from described physical layer generates and sends this PHRMAC and controls unitElement, and sending start-up period PHR timer after described PHRMAC control element, wherein, instituteStating PHRMAC control element is included in Medium Access Control (MAC) Protocol Data Unit PDU;
As the result of priority of logical channels deciding grade and level, if described in determining that the UL resource of distributing can not holdPHRMACCE, does not trigger described PHR, and described in described PHRMAC control element not being included inIn Medium Access Control (MAC) Protocol Data Unit PDU.
7. UE according to claim 6, wherein, described power headroom reporting be by path loss variation,At least one institute for the periodical timer of PHR transmission and the configuration to PHR function or in reshufflingTrigger.
8. UE according to claim 7, wherein, if described path loss variation exceeds threshold value, triggersDescribed power headroom reporting.
9. UE according to claim 7, wherein, if the described periodical timer transmitting for PHRExpire, trigger described power headroom reporting.
10. UE according to claim 7, wherein, if used described PHR function reshuffle prohibitBy this PHR function, do not trigger described power headroom reporting.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7374308P | 2008-06-18 | 2008-06-18 | |
| US61/073,743 | 2008-06-18 | ||
| US10815608P | 2008-10-24 | 2008-10-24 | |
| US61/108,156 | 2008-10-24 | ||
| US11934308P | 2008-12-02 | 2008-12-02 | |
| US61/119,343 | 2008-12-02 | ||
| US14225709P | 2009-01-02 | 2009-01-02 | |
| US61/142,257 | 2009-01-02 | ||
| KR1020090053587A KR101072049B1 (en) | 2008-06-18 | 2009-06-16 | Method of transmitting power headroom reporting in wireless communication system |
| KR10-2009-0053587 | 2009-06-16 | ||
| PCT/KR2009/003252 WO2009154403A2 (en) | 2008-06-18 | 2009-06-17 | Method of transmitting power headroom reporting in wireless communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102067480A CN102067480A (en) | 2011-05-18 |
| CN102067480B true CN102067480B (en) | 2016-05-25 |
Family
ID=41690821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980122806.5A Active CN102067480B (en) | 2008-06-18 | 2009-06-17 | The method of delivering power rising space report in wireless communication system |
Country Status (5)
| Country | Link |
|---|---|
| JP (2) | JP5539975B2 (en) |
| KR (1) | KR101072049B1 (en) |
| CN (1) | CN102067480B (en) |
| CA (1) | CA2724595C (en) |
| ES (1) | ES2649587T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11849408B2 (en) | 2009-03-17 | 2023-12-19 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting a power headroom report of a UE in a wireless communication system |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2536199A4 (en) * | 2010-02-11 | 2015-07-08 | Alcatel Lucent | Method and device for transmitting and receiving power head room report |
| KR20130004911A (en) * | 2010-02-24 | 2013-01-14 | 엘지전자 주식회사 | Terminal for reporting an uplink power control state, and method for same |
| CN103053206A (en) | 2010-06-21 | 2013-04-17 | 诺基亚西门子网络公司 | Carrier aggregation with power headroom report |
| KR101684968B1 (en) * | 2010-06-30 | 2016-12-09 | 엘지전자 주식회사 | Method for reporting transmitting power headroom in wireless communication system and apparatus therefor |
| US8954106B2 (en) | 2010-08-10 | 2015-02-10 | Samsung Electronics Co., Ltd. | Method and apparatus for configuring power headroom information in mobile communication system supporting carrier aggregation |
| KR101894916B1 (en) * | 2010-08-10 | 2018-10-12 | 삼성전자 주식회사 | Method and apparatus for constructing power headroom information in mobile communication for carrier aggregation |
| KR101514158B1 (en) * | 2010-08-12 | 2015-04-22 | 엘지전자 주식회사 | Apparatus and method of reporting power headroom in wireless communication system |
| KR101954185B1 (en) * | 2010-11-05 | 2019-06-03 | 삼성전자 주식회사 | Method and apparatus for reporting power headroom information in carrier aggregation mobile system |
| US9144038B2 (en) | 2010-11-05 | 2015-09-22 | Samsung Electronics Co., Ltd. | Method and apparatus for calculating power headroom in carrier aggregation mobile communication system |
| US9036556B2 (en) | 2011-03-22 | 2015-05-19 | Lg Electronics Inc. | Apparatus and method of reporting power headroom in wireless communication system |
| KR20120108345A (en) * | 2011-03-23 | 2012-10-05 | 주식회사 팬택 | Apparatus and method for performing power headroom report |
| US9544804B2 (en) | 2011-09-26 | 2017-01-10 | Lg Electronics Inc. | Method and apparatus for transmitting and receiving power headroom report in a wireless communication system |
| EP2663139B1 (en) | 2012-05-11 | 2019-01-23 | LG Electronics Inc. -1- | Method and apparatus for performing power headroom reporting procedure in wireless communication system |
| US10080203B2 (en) | 2013-04-22 | 2018-09-18 | Lg Electronics Inc. | Power headroom reporting method in wireless communication system supporting change in use of wireless resource and apparatus for same |
| US10361833B2 (en) * | 2013-12-11 | 2019-07-23 | Innovative Sonic Corporation | Method and apparatus for improving device to device (D2D) communication in a wireless communication system |
| US10412690B2 (en) * | 2015-07-10 | 2019-09-10 | Qualcomm Incorporated | Power headroom reporting for low cost machine type communication |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3344365B2 (en) * | 1999-05-31 | 2002-11-11 | 日本電気株式会社 | Mobile communication system and service area quality information collecting method thereof |
| US20040147276A1 (en) | 2002-12-17 | 2004-07-29 | Ralph Gholmieh | Reduced signaling power headroom feedback |
| US20060013182A1 (en) | 2004-07-19 | 2006-01-19 | Telefonaktiebolaget Lm Ericsson | Selective multicarrier CDMA network |
| KR101084134B1 (en) * | 2005-05-03 | 2011-11-17 | 엘지전자 주식회사 | Method for Transmitting Control Information, in a Mobile Communication System |
| US20080045255A1 (en) * | 2006-08-21 | 2008-02-21 | Motorola, Inc. | Method of transmitting scheduling information by a wireless communication device and a wireless communication device |
| US8223708B2 (en) * | 2008-06-10 | 2012-07-17 | Innovative Sonic Limited | Method and apparatus for handling scheduling information report |
-
2009
- 2009-06-16 KR KR1020090053587A patent/KR101072049B1/en active IP Right Grant
- 2009-06-17 ES ES09007924.5T patent/ES2649587T3/en active Active
- 2009-06-17 JP JP2011514495A patent/JP5539975B2/en active Active
- 2009-06-17 CA CA2724595A patent/CA2724595C/en active Active
- 2009-06-17 CN CN200980122806.5A patent/CN102067480B/en active Active
-
2014
- 2014-05-01 JP JP2014094374A patent/JP5784181B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| TP on Power Headroom reporting;Alcatel-Lucent;《3GPP TSG RAN WG2 #62 R2-082224》;20080428;1-7页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11849408B2 (en) | 2009-03-17 | 2023-12-19 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting a power headroom report of a UE in a wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011524712A (en) | 2011-09-01 |
| JP5539975B2 (en) | 2014-07-02 |
| CA2724595A1 (en) | 2009-12-23 |
| JP2014161101A (en) | 2014-09-04 |
| CN102067480A (en) | 2011-05-18 |
| JP5784181B2 (en) | 2015-09-24 |
| KR20090131653A (en) | 2009-12-29 |
| KR101072049B1 (en) | 2011-10-10 |
| CA2724595C (en) | 2014-02-04 |
| ES2649587T3 (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102067480B (en) | The method of delivering power rising space report in wireless communication system | |
| CN107046728B (en) | Information reporting method and device and discontinuous transmission method | |
| US11943806B2 (en) | Uplink resource allocation among different OFDM numerology schemes | |
| US11770860B2 (en) | Performing listen-before-talk procedure during random access procedure | |
| US11985708B2 (en) | Random access counter management based on listen before talk | |
| US11695603B2 (en) | Starting a time alignment timer before receiving an initial timing advance command | |
| US20200137754A1 (en) | Method and apparatus for processing scheduling information in mobile communication system | |
| US9125164B2 (en) | Method of transmitting power headroom reporting in wireless communication system | |
| KR101365223B1 (en) | Method and Apparatus for Power Headroom Reporting | |
| CN111699705B (en) | Method for determining energy efficiency and electronic device thereof | |
| CN103546908A (en) | Method and apparatus for measuring a packet throughput in wireless communication system | |
| KR101845558B1 (en) | Method and apparatus of group paging in a wireless communication system and method and apparatus for performing random access using the same | |
| CN115696438A (en) | Launch fill efficiency improvement | |
| KR20090084701A (en) | Method for performing drx (discontinuous reception) operation based on scheduling request(sr)and prioritized bit rate(pbr) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |