CN105766034A

CN105766034A - Coordinated multi-point communication power headroom reporting method and device

Info

Publication number: CN105766034A
Application number: CN201380002597.7A
Authority: CN
Inventors: 张健; 曾清海; 黄曲芳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2016-07-13
Anticipated expiration: 2033-03-28
Also published as: CN105766034B

Abstract

The invention discloses a coordinated multi-point communication power headroom reporting method and device. The method comprises that user equipment obtains an uplink coordinated multi-point (CoMP) measurement set configured by a serving base station, and the uplink CoMP measurement set contains measurement configuration information of a receiving point (RP); the user equipment estimates the downlink loss according to the uplink CoMP measurement set; and the user equipment generates a power headroom report (PHR) according to the downlink loss and reports the PHR to the serving base station. By employing the above method and device, the user equipment can estimate the downlink loss, PUSCH/PUCCH transmitting power and PH more accurately, the uplink resource can be distributed more accurately, interference is reduced, and the uplink throughput can be increased.

Description

The power headroom reporting (PHR) method of a kind of coordinate multipoint communication and device

Technical field

The present invention relates to mobile communication technology field, particularly relate to power headroom reporting (PHR) (Powerheadroomreport, the PHR) method and apparatus that a kind of coordinate multipoint (coordinatedmulti-point, CoMP) communicates.

Background technology

nullAt third generation partner program (3rdGenerationPartnerProject，3GPP) Long Term Evolution (longtermevolution，And senior Long Term Evolution (LTEadvanced LTE)，LTE-A) in，Power headroom reporting (PHR) process refers to subscriber equipment (UserEquipment，Subscriber equipment) report nominal subscriber equipment maximum transmission power and Uplink Shared Channel (uplinksharedchannel on the Serving cell of each state of activation to serving BS (servingbasestation)，UL-SCH) the upper different information estimating transmitting power，Simultaneously in this power headroom reporting (PHR) process，Subscriber equipment also reports, to serving BS, the different information that the upper nominal subscriber equipment maximum transmission power of main Serving cell (PCell) and Uplink Shared Channel and Physical Uplink Control Channel estimate transmitting power.

But, along with the development of mobile communication technology, coordinate multipoint communication technology is increasingly adopted widely；Coordinate multipoint communication technology is to utilize the cooperation between the multiple network elements separated on geographical position to communicate with subscriber equipment, it includes multipoint cooperative and sends and/or multipoint cooperative reception, thus reducing the interference of Cell Edge User equipment and improving cell edge throughput and reliability.

Therefore, for coordinate multipoint communication technology, lack effective mechanism at present so that subscriber equipment can rationally be reported for coordinate multipoint communication reporting power margin.

Summary of the invention

The invention provides the power headroom reporting (PHR) method of a kind of coordinate multipoint communication and device, it is possible to use family equipment rationally generates power headroom reporting (PHR), and reports serving BS.

For solving the problems referred to above, technical scheme provided by the invention is as follows:

First aspect present invention provides the method for the power headroom reporting (PHR) of a kind of coordinate multipoint communication, its the first implementation includes: subscriber equipment obtains the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, and described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；Described subscriber equipment estimates descending path loss according to described up CoMP measuring assembly；Described subscriber equipment generates power headroom reporting (PHR) PHR according to described descending path loss and described PHR is reported described serving BS.

In a kind of possible implementation, the measurement configuration information of described RP includes: the channel state information reference signals CSI-RS configuration index information of described RP；Or, the CSI-RS configuration index information of described RP and the CSI-RS configuration information of correspondence thereof.

In alternatively possible implementation, the measurement configuration information of described RP includes: the CoMP cell index of described RP and the CoMP cell configuration information of correspondence thereof.

In conjunction with any one possible implementation above-mentioned, the method also includes: obtain the uplink power control parameter of described serving BS configuration；Described uplink power control parameter is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In conjunction with the implementation that former is possible, the method also includes: obtain the descending path loss of described serving BS configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, obtains descending path loss and instruction according to described uplink power control parameter acquiring in order to indicate according to described CoMP measuring assembly: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In conjunction with any one possible implementation above-mentioned, the method also includes: update described up CoMP measuring assembly；Described renewal specifically includes: increase and/or reduce the configuration information of described RP in described up CoMP measuring assembly；Or the cell reference signals CRS in described up CoMP measuring assembly is reconfigured as CSI-RS；Or the CSI-RS in described up CoMP measuring assembly is reconfigured as CRS.

In conjunction with the implementation that former is possible, the described up CoMP measuring assembly of described renewal, based on any one situation following: periodic report timer expiry；Or described up CoMP measures the Reference Signal Received Power RSRP that concentrates at least one RP less than the first predetermined threshold value or descending path loss more than the second predetermined threshold value；Or the difference of the minimum descending path loss corresponding for described RP of descending path loss and the described up COMP measuring assembly of estimation is more than the 3rd predetermined threshold value.

In conjunction with the implementation that former is possible, described measurement report includes: the CSI-RS corresponding for RP that in described up CoMP measuring assembly, descending path loss is minimum indexes or Physical Cell Identifier PCI；Or, in described up CoMP measuring assembly, RSRP indexes or PCI more than the CSI-RS corresponding for RP of the 5th predetermined threshold value less than the 4th predetermined threshold value or descending path loss.

In conjunction with the implementation that former is possible, described measurement report also includes: the RSRP that described CSI-RS index is corresponding；Or, RSRP that PCI is corresponding or descending path loss.

In conjunction with any one possible implementation above-mentioned, when adopting PHMACCE power headroom medium education cell that described PHR is reported described serving BS, described PHMACCE comprises described CSI-RS index or CoMP cell index instruction, in order to RP corresponding for described PH is informed to described serving BS；When adopting extension PHMACCE that described PHR is reported described serving BS, described extended MAC CE comprises described CSI-RS index or CoMP cell index instruction, the peak power output of subscriber equipment subscriber equipment that Serving cell according to the computed PH of the descending path loss of each RP and/or correspondence configures, in order to RP corresponding for described PH is informed to described serving BS.

In conjunction with any one possible implementation above-mentioned, described descending path loss is: minimum descending path loss corresponding for RP in described up CoMP measuring assembly；Or, the weighted mean of descending path loss corresponding for RP in described up CoMP measuring assembly；Or, the meansigma methods of n descending path loss corresponding for RP or weighted mean in described up CoMP measuring assembly, described n is less than or equal to the positive integer of all RP numbers in described up CoMP measuring assembly.

Another aspect of the present invention provides the power headroom reporting (PHR) method of a kind of coordinate multipoint communication, its a kind of possible implementation includes: for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；Obtain the power headroom reporting (PHR) PHR that the descending path loss according to the estimation of described up CoMP measuring assembly of described user equipment to report generates.

In a kind of possible implementation, the measurement configuration information of described RP includes: the CoMP cell index of described RP and the CoMP cell configuration information of correspondence thereof.

In conjunction with any one possible implementation above-mentioned, the method also includes: for described user device configuration uplink power control parameter；Described uplink power control parameter is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In conjunction with the implementation that former is possible, the method also includes: for the descending path loss of described user device configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to obtain descending path loss and instruction according to described uplink power control parameter acquiring according to described CoMP measuring assembly: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In conjunction with any one possible implementation above-mentioned, the method also includes: receive the measurement report of described user equipment to report；Described up CoMP measuring assembly is updated according to described measurement report.

In conjunction with the implementation that former is possible, described in the measurement report that receives include: CSI-RS index corresponding for RP that in described up CoMP measuring assembly, descending path loss is minimum or Physical Cell Identifier PCI；Or, CSI-RS corresponding more than the RP of the second predetermined threshold value less than the first predetermined threshold value or descending path loss for RSRP in described up CoMP measuring assembly indexes or PCI.

In conjunction with the implementation that former is possible, described renewal up CoMP measuring assembly includes: delete the RSRP RP corresponding more than the second predetermined threshold value less than the first predetermined threshold value or descending path loss from described up CoMP measuring assembly；Or, in described up CoMP measuring assembly, increase new RP configuration information.

Another aspect of the present invention provides a kind of subscriber equipment, and its a kind of possible implementation includes: acquiring unit, evaluation unit and report unit；Wherein, described acquiring unit is for obtaining the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, and the up CoMP measuring assembly that described acquiring unit obtains comprises the measurement configuration information receiving some RP；Described evaluation unit estimates descending path loss for the up CoMP measuring assembly obtained according to described acquiring unit；Described unit is reported to generate power headroom reporting (PHR) PHR for the descending path loss estimated according to described evaluation unit and described PHR is reported described serving BS.

In a kind of possible implementation, described acquiring unit is additionally operable to obtain the uplink power control parameter of described serving BS configuration；The uplink power control parameter that described acquiring unit obtains is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power, or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In a kind of possible implementation, described acquiring unit is additionally operable to the descending path loss obtaining the configuration of described serving BS with reference to related information；The described descending path loss that described acquiring unit obtains is associated with described up CoMP measuring assembly with reference to related information, in order to indicate according to described CoMP measuring assembly obtain descending path loss and and indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In a kind of possible implementation, described evaluation unit includes: computing module and comparison module；Wherein, described computing module is for calculating the descending path loss of all RP in the described up CoMP measuring assembly that described acquiring unit obtains, and informs described comparison module；Described comparison module is for the notice according to described computing module, relatively after the descending path loss of described all RP, determine minimum descending path loss according to following either type: minimum descending path loss corresponding for RP in described up CoMP measuring assembly is as the descending path loss of estimation；Or, the weighted mean of descending path loss corresponding for RP in described up CoMP measuring assembly as estimation descending path loss；Or, in described up CoMP measuring assembly, the meansigma methods of the descending path loss of n RP or weighted mean are calculated as lower walking along the street；Wherein n is less than or equal to RP number positive integers all in described up CoMP measuring assembly.

In a kind of possible implementation, described in report unit also to include: determination module and trigger module；Wherein, described determination module is for judging whether the information that described up CoMP measuring assembly comprises changes, and result of determination informs to described trigger module；Described trigger module is for receiving the notice of described determination module, and when described up CoMP measuring assembly increases and/or reduces the configuration information of RP, or when the information that described up CoMP measuring assembly comprises reconfigures as CSI-RS from cell reference signals CRS, or when the information that described up CoMP measuring assembly comprises reconfigures as CRS from CSI-RS, trigger PHR process.

In a kind of possible implementation, this device also includes: detection unit and transmitting element；Wherein, described detection unit is used for detecting following any information and testing result notifying described transmitting element: whether periodic report intervalometer is overtime；Or, the size of the Reference Signal Received Power RSRP of RP and the first predetermined threshold value in described up CoMP measuring assembly；Or, the size of descending path loss and the second predetermined threshold value；Or, descending path loss and the descending path loss difference of minimum RP of the estimation of described evaluation unit and the size of the 3rd predetermined threshold value；Described transmitting element is for receiving the testing result of described detection unit, and when periodic report timer expiry, or when described up CoMP measure the RSRP concentrating at least one RP less than the first predetermined threshold value or descending path loss more than the second predetermined threshold value time, or when the descending path loss of estimation and the difference of the descending path loss of minimum RP are more than three predetermined threshold value, to described serving base stations report measurement report so that described serving BS updates described up CoMP measuring assembly according to described measurement report.

Another aspect of the present invention provides a kind of base station, and its a kind of possible implementation includes: dispensing unit and reception unit；Wherein, described dispensing unit is for for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, and the up CoMP measuring assembly of described dispensing unit configuration comprises the measurement configuration information receiving some RP；The power headroom reporting (PHR) PHR that described reception unit generates for the descending path loss according to the estimation of described up CoMP measuring assembly obtaining described user equipment to report.

In a kind of possible implementation, described dispensing unit is additionally operable to as described user device configuration uplink power control parameter；Described uplink power control parameter is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In a kind of possible implementation, described dispensing unit is additionally operable to as the descending path loss of described user device configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to obtain descending path loss and instruction according to described uplink power control parameter acquiring according to described CoMP measuring assembly: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

In a kind of possible implementation, described reception unit, it is additionally operable to receive the measurement report of described user equipment to report；Described base station also includes updating block, updates described up CoMP measuring assembly for the described measurement report received according to described reception unit.

Another aspect of the present invention provides a kind of subscriber equipment, and its a kind of possible implementation includes: receiver, and for obtaining the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；Processor, is used for: estimate descending path loss according to described up CoMP measuring assembly；Power headroom reporting (PHR) PHR is generated with according to described descending path loss；Transmitter, for reporting described serving BS by described PHR.

Another aspect of the present invention provides a kind of base station, its a kind of possible implementation includes: processor, for for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, the up CoMP measuring assembly of described dispensing unit configuration comprises the measurement configuration information receiving some RP；Receiver, the PHR that the descending path loss according to the estimation of described up CoMP measuring assembly for obtaining described user equipment to report generates.

Can be seen that, adopt methods and apparatus of the present invention, it is the up CoMP measuring assembly of user device configuration by serving BS, so that described subscriber equipment estimates descending path loss according to this up CoMP measuring assembly, thus avoiding in up CoMP descending path loss with reference to probabilistic problem, and then avoid PUSCH/PUCCH transmitting power bigger than normal and the PH interference enhancing caused less than normal, RP successful receiving rate reduces, the problems such as uplink throughput reduction, subscriber equipment and serving BS is made accurately to estimate descending path loss and PUSCH/PUCCH transmitting power, by sending rational power headroom reporting (PHR) to base station, make base station can distribute ascending resource exactly, reduce interference and improve uplink throughput.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the power headroom reporting (PHR) method schematic flow sheet of embodiment of the present invention coordinate multipoint communication；

Fig. 2 is PHMACCE message format schematic diagram in the embodiment of the present invention；

Fig. 3 is ExtendedPHMACCE message format schematic diagram in the embodiment of the present invention；

Fig. 4 is the another schematic flow sheet of the power headroom reporting (PHR) method of embodiment of the present invention coordinate multipoint communication；

Fig. 5 is a kind of user device architecture schematic diagram of the embodiment of the present invention；

Fig. 6 is a kind of architecture of base station schematic diagram of the embodiment of the present invention；

Fig. 7 is the another kind of user device architecture schematic diagram of the embodiment of the present invention；

Fig. 8 is the another kind of architecture of base station schematic diagram of the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.

CoMP communication utilizes the cooperation between the multiple network elements separated on geographical position to communicate with UE, send including multipoint cooperative and/or multipoint cooperative receives, by Combined Treatment (JP:JointProcessing), the interference of minizone is changed into desired signal, or avoided and the conflicting of neighbor cell wave beam and running time-frequency resource by cooperative scheduling/wave beam forming (CS/CB:CoordinatedScheduling/CoordinatedBeamforming), thus reducing the interference of cell edge UE and improving cell edge throughput (celledgethroughput), improve reliability.

Described network element can be such as node corresponding to community (cell), community (such as, base station, via node), far end radio frequency head (remoteradiohead, RRH), Remote Radio Unit (radioremoteunit, RRU), antenna port (antennaport) etc., said network element may be collectively referred to as transmission point (TP).CoMP can apply to downlink communication and/or uplink communication, and for up CoMP, described network element can also be called reception point (RP).

An embodiment provides the power headroom reporting (PHR) method of a kind of coordinate multipoint communication, its executive agent can be subscriber equipment, as it is shown in figure 1, the method includes:

Step 110: subscriber equipment obtains the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP.

Wherein, comprising the measurement configuration information of one or more RP in described up CoMP measuring assembly, concrete described up CoMP measuring assembly can comprise two categories below parameter, but is not limited thereto:

A, when described up CoMP measuring assembly indicate based on channel state information reference signals (channelstateinformationreferencesignal, CSI-RS), when RSRP measures, described up CoMP measuring assembly includes: the CSI-RS configuration information of one or more CSI-RS configuration indexs and correspondence thereof；Described CSI-RS configuration information includes one of herein below or its combination in any: antenna port (antennaPortsCount), resource distribution (resourceConfig), sub-frame configuration (subframeConfig), CSI-RS reference signal power information.

It should be noted that the content of described up CoMP measuring assembly can also only comprise CSI-RS configuration index information, other configuration information and measuring assembly may be embodied in different RRC cells (informationelement, IE)；CSI-RS reference signal power information can be transmission power information, or the percent information of the every resource element energy (EnergyPerResourceElement, EPRE) of PDSCH and CSI-RSEPRE.Above-mentioned CSI-RS configuration index information can be the relative index number of CSI-RS configuration information, in order to identify or to distinguish different CSI-RS configuration information.Such as, the CSI-RS configuration index information that subscriber equipment can issue according to serving BS, obtain its CSI-RS configuration information referred to, this is not limited by the present invention.

B, when the instruction of described up CoMP measuring assembly is measured based on the RSRP of cell reference signals (cellreferencesignal, CRS), described up CoMP measuring assembly includes: one or more CoMP cell index and the CoMP cell configuration information of correspondence thereof；Described CoMP cell configuration information includes one of herein below or its combination in any: the carrier wave frequency information of community such as Absolute Radio Frequency Channel number (absoluteradiofreq subscriber equipment ncychannelnumber, ARFCN), Physical Cell Identifier (physCellId), CRS reference signal power information (ReferenceSignalPower, RSP) etc..

Optionally, described subscriber equipment also can obtain the uplink power control parameter of described serving BS configuration, and this uplink power control parameter includes following at least one: the information such as nominal PUCCH reference emission power (p0-NominalPUCCH), subscriber equipment specific PUCCH reference emission power (p0-subscriber equipment-PUCCH), nominal PUSCH reference emission power (p0-NominalPUSCH), subscriber equipment specific PUSCH reference emission power (p0-subscriber equipment-PUSCH), descending road loss compensation factor (alpha)；Certainly being not limited thereto, the present embodiment does not repeat them here.It should be noted that, the method of the present embodiment can also be for the uplink power control parameter that the configuration of each up CoMP measuring assembly is corresponding, it is also possible to is respectively configured corresponding uplink power control parameter for each CSI-RS configuration information in described up CoMP measuring assembly or CoMP cell configuration information；Uplink power control parameter configuration can be measured collection configuration information with associated up CoMP and be included in different RRC cells.

Optionally, described subscriber equipment also can obtain the descending path loss of described serving BS configuration with reference to related information, the related information that this descending path loss uses when estimating descending path loss, calculating PH, PUCCH/PUSCH transmitting power, detection reference signal (SRS) transmitting power with reference to the related information described subscriber equipment of instruction；Wherein, described descending path loss can be associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to estimate descending path loss according to CoMP measuring assembly, simultaneously also in order to indicate described subscriber equipment to calculate PH, PUCCH/PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding；When system is when being configured with carrier aggregation (CA), described descending path loss can be main Serving cell (PCell), auxiliary serving cell (SCell) or up CoMP measuring assembly with reference to related information；When not configuring CA, described descending path loss can be PCell or up CoMP measuring assembly with reference to related information.

It should be noted that herein, in prior art, in RRC signaling, directly instruction subscriber equipment measures path loss according to the reference signal CRS specifying community, and the signal power that subscriber equipment sends the signal power of CRS-reality reception CRS according to the Serving cell that base station configures can calculate descending path loss；And subscriber equipment calculates descending path loss according to the measurement situation of multiple CSI-RS in up CoMP measuring assembly in the present embodiment, configuration information comprises the transmitting power of multiple CSI-RS or CRS, subscriber equipment can based on the meansigma methods of above-mentioned multiple CSI-RS or CRS or minima, the descending path loss of power calculation of power-subscriber equipment reception CSI-RS or CRS of CRS or CSI-RS is sent, thus ensure that the stability that descending path loss is estimated according to base station.

Optionally, after subscriber equipment gets the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, described subscriber equipment can send wireless resource control connection reconfiguration to serving BS and complete (RRCConnectionReconfigurationComplete) message.

Step 120: described subscriber equipment estimates descending path loss according to described up CoMP measuring assembly.

Concrete, no matter the RSRP being based on CSI-RS indicated in the up CoMP measuring assembly that described serving BS is described user device configuration measures or RSRP based on CRS measures, described subscriber equipment all can estimate described descending path loss by the difference of acquisition RSP and RSRP；Wherein RSP is actual reference signal transmitting power, by serving BS by RRC signal deployment to subscriber equipment.

Additionally, present embodiments provide another kind of descending path loss estimation mode, but those of ordinary skill in the art understand and are not limited thereto: described descending path loss is minimum descending path loss in all RP in described up CoMP measuring assembly；Or, the weighted mean of the descending path loss of all RP, namely different RP can value be the different factor, all factors and be 1；Or, the meansigma methods of the descending path loss of n minimum RP or weighted mean；Wherein n measures less than or equal to up CoMP and concentrates all RP numbers.

Step 130: described subscriber equipment generates power headroom reporting (PHR) PHR according to described descending path loss and described PHR is reported described serving BS.

Wherein, preiodic type is adopted to trigger in the present embodiment, based on descending path loss change triggers or based on modes such as up CoMP measuring assembly change triggers, certainly it is not limited thereto: concrete, when up CoMP measuring assembly increasing and/or deleting the configuration information of one or more RP, or when the content of up CoMP measuring assembly reconfigures as measuring based on the RSRP of CSI-RS from the RSRP measurement based on CRS, or when up CoMP measuring assembly reconfigures as measuring based on the RSRP of CRS from the RSRP measurement based on CSI-RS, described subscriber equipment triggers PHR process.

After described subscriber equipment triggers PHR process, subscriber equipment calculates PH, PCMAX, c, PUSCH transmitting power, PUCCH transmitting power, then according to the message format of PHR obtains each parameter and writes respective field, generates PHR and reports to serving BS；Wherein, described subscriber equipment can utilize the minimum descending path loss estimated by up CoMP measuring assembly in the present embodiment, the uplink power control parameter of the RP corresponding to minimum descending path loss calculates PH and PUCCH/PUSCH transmitting power, or according to descending path loss meansigma methods or weighted mean, uplink power control parameter corresponding to up CoMP measuring assembly calculates PH and PUCCH/PUSCH transmitting power, or the descending path loss estimated by each RP in up CoMP measuring assembly, uplink power control parameter corresponding to each RP calculates PH and the PUCCH/PUSCH transmitting power corresponding to each RP.

Additionally, when described user device configuration during PH, described subscriber equipment adopts PHMACCE form to report PHR to described serving BS；When described user device configuration during extendedPH, described subscriber equipment adopts extendedPHMACCE to report PHR to described serving BS；When described user device configuration during CA and extendedPH, serving BS can be main Serving cell and at least 1 auxiliary serving cell is respectively configured up CoMP measuring assembly, comprises the PH information computed according to this up CoMP measuring assembly for each Serving cell being configured with up CoMP measuring assembly in extendedPH.

It should be noted that the PHR of user equipment to report described in the present embodiment can adopt multiple format, only illustrate for two kinds of forms of PHMACCE and extendedMACCE below, but be not limited thereto；

One, when adopt described PHMACCE or extendedMACCE report described PHR time, described PHMACCE and extendedMACCE all contains described CSI-RS index or CoMP cell index instruction, in order to RP corresponding for described PH is informed to described serving BS；Concrete, described each CSI-RS index or CoMP cell index take 1bit, and the measurement result that value is RP corresponding to 0 expression does not use, and the measurement that value is RP corresponding to 1 expression is used；Meanwhile, when being configured with the up power contorl parameters of many sets, it is simple to base station selected corresponding uplink power control parameter, the reference information of ascending resource is joined as the later uplink scheduling time-division.And when described user device configuration during CA, described serving BS can be that PCell and at least 1 SCell is respectively configured CoMP and measures collection, indicates respectively CSI-RS index or CoMP cell index accordingly in the extendedMACCE of described user equipment to report for each Serving cell；Wherein, PCell and SCell is referred to as Serving cell.

Wherein, as in figure 2 it is shown, described PHMACCE takies the fixed capacity of three bytes, including the quiet lotus of PHRMACCE of the MAC head of a byte and two bytes；And " R " represents reserved field in MAC head；" E " is extended field, indicates whether the medium education Service Data Unit (MACSDU) of also follow-up MAC head and correspondence；LCID is Logic Channel Identifier, represents the type of this MACCE；In the quiet lotus of MACCE, " R " represents that reserved field, PH represent power headroom rank, value 0～63；D0～7 in quiet lotus represent reference signal index, represent the CSI-RS index during up CoMP measures or CoMP cell index.

As shown in Figure 3, ExtendedPHMACCE form is variable-length, including the quiet lotus of extendedPHRMACCE of the MAC head of two bytes and variable-length, with whether be configured with PUCCH and PUSCH send simultaneously, send PHR time be active SCell number, that whether each SCell activated is assigned the factors such as ascending resource is relevant；Wherein, in MAC head the implication of " R/E/LCID " with the MAC head of PHR；" F " expression " L " field is 7bit or 15bit；" L " represents the length of the quiet lotus of MAC；In the quiet lotus of MACCE, the implication of " R/PH " is with the quiet lotus of PHMACCE；Comprise when being configured with PUCCH and PUSCH and sending simultaneously and go back containing type 2PH, otherwise only containing type 1PH；" C1～C7 " represents whether the PH corresponding to SCell index exists, and the SCell being only active just has the PH of correspondence；D0～7 represent reference signal index, represent the CSI-RS index in the up CoMP measurement that corresponding Serving cell configures or CoMP cell index；" P " represents whether subscriber equipment has carried out back-off；" V " is for real up transmission or virtual PH when representing and calculate PH, is assigned ascending resource when the former sends PHR on this SCell, and the latter represents does not have ascending resource on this SCell, and is the use of parameter format；The maximum subscriber equipment output PCMAX field that the Serving cell being corresponding when " V " is 0 configures occurs without.

Two, when adopting described extendedPHMACCE to report described PHR, described extendedPHMACCE can also comprise the PCMAX of the PH computed according to the descending path loss of each RP and/or correspondence；Wherein, when being configured with CA, serving BS is that PCell and at least 1 SCell is respectively configured CoMP and measures collection, and comprises the PCMAX measuring the computed PH of the descending path loss concentrating each RP and/or correspondence according to its up CoMP in extendedMACCE respectively for each Serving cell；With adopting PHMACCE, it is different in that the Serving cell of PCell and each activation all can comprise multiple PH, when CSI-RS index or CoMP cell index D0～D7 correspondence bit value are 1, then comprise its PH；The PCMAX of the Serving cell of each activation comprises 1, it is also possible to comprises multiple, does not repeat them here.

In addition, the present embodiment may also include step 140: when periodic measurement report timer expiry, or when up CoMP measure the RSRP concentrating certain or multiple RP less than thresholding X or descending path loss more than thresholding Y time, or when the descending path loss of estimation exceedes thresholding Z with the difference of the descending path loss of minimum RP, described subscriber equipment is to described serving base stations report measurement report so that described serving BS updates described up CoMP measuring assembly according to described measurement report；Wherein, described thresholding X, Y and Z are default threshold value.

Wherein, user equipment to report described in the present embodiment indexes or PCI(PhysicalCellIdentification, Physical Cell Identifier to the CSI-RS corresponding for RP that the measurement report of described serving BS may also include that in up CoMP measuring assembly, descending path loss is minimum)；Or the CSI-RS index corresponding for multiple RP that in up CoMP measuring assembly, descending path loss is minimum or PCI；Or CSI-RS index corresponding less than certain or multiple RP more than thresholding x of thresholding x or descending path loss for RSRP in up CoMP measuring assembly or PCI；Additionally, described measurement report may also include RSRP corresponding for CSI-RS or PCI corresponding for described RP or descending circuit loss value etc.；But it is not limited thereto.

Another embodiment of the present invention also provides the power headroom reporting (PHR) method of a kind of coordinate multipoint communication, and it is described for executive agent with base station for a upper embodiment, and as shown in Figure 4, the method includes:

Step 210: for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP.

It should be noted that, suitable RP is obtained for the multiple RP from CoMP technology, serving BS described in the present embodiment except for user device configuration uplink power control parameter and descending path loss with reference to except related information, in addition it is also necessary to be user device configuration CoMP measuring assembly by wireless resource control connection reconfiguration (RRCConnectionReconfiguration) message.Optionally, after described subscriber equipment receives described wireless resource control connection reconfiguration message, from this message, extract described up CoMP measuring assembly.

A, when described up CoMP measuring assembly indicate based on channel state information reference signals (channelstateinformationreferencesignal, CSI-RS), when RSRP measures, described up CoMP measuring assembly includes: the CSI-RS configuration information of one or more CSI-RS configuration indexs and correspondence thereof；Described CSI-RS configuration information includes one of herein below or its combination in any: antenna port (antennaPortsCount), resource distribution (resourceConfig), sub-frame configuration (subframeConfig), CSI-RS reference signal power information etc.；

It should be noted that the content of described up CoMP measuring assembly can also only comprise CSI-RS configuration index information, other configuration information and measuring assembly may be embodied in different RRC cells (informationelement, IE)；CSI-RS reference signal power information can be transmission power information, or the percent information of the every resource element energy (EnergyPerResourceElement, EPRE) of PDSCH and CSI-RSEPRE.

Need also exist for illustrate be, the content of described up CoMP measuring assembly can also only comprise CoMP cell index and corresponding Physical Cell Identifier configuration information, other configuration information and measuring assembly are included in different RRC cells (informationelement, IE).

In addition, when, after the described serving BS uplink power control parameter that has been described user device configuration, this uplink power control parameter includes following at least one: the information such as nominal PUCCH reference emission power (p0-NominalPUCCH), subscriber equipment specific PUCCH reference emission power (p0-subscriber equipment-PUCCH), nominal PUSCH reference emission power (p0-NominalPUSCH), subscriber equipment specific PUSCH reference emission power (p0-subscriber equipment-PUSCH), descending road loss compensation factor (alpha)；Certainly being not limited thereto, the present embodiment does not repeat them here.It should be noted that, the method of the present embodiment can also be for the uplink power control parameter that the configuration of each up CoMP measuring assembly is corresponding, it is also possible to is respectively configured corresponding uplink power control parameter for each CSI-RS configuration information in described up CoMP measuring assembly or CoMP cell configuration information；Uplink power control parameter configuration can be measured collection configuration information with associated up CoMP and be included in different RRC cells.

In like manner, when the described serving BS descending path loss that has been described user device configuration is with reference to after related information, this descending path loss indicates, with reference to related information, the related information that described subscriber equipment uses when estimating descending path loss, calculating PH, PUCCH/PUSCH transmitting power, detection reference signal (SRS) transmitting power；Wherein, described descending path loss can be associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to estimate descending path loss according to CoMP measuring assembly, simultaneously also in order to indicate described subscriber equipment to calculate PH, PUCCH/PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding；When system is when being configured with carrier aggregation (CA), described descending path loss can be main Serving cell (PCell), auxiliary serving cell (SCell) or up CoMP measuring assembly with reference to related information；When not configuring CA, described descending path loss can be PCell or up CoMP measuring assembly with reference to related information.

It should be noted that herein, in prior art, in RRC signaling, directly instruction subscriber equipment measures path loss according to the reference signal CRS specifying community, and the signal power that subscriber equipment sends the signal power of CRS-reality reception CRS according to the Serving cell that base station configures can calculate descending path loss；And by indicating subscriber equipment to calculate descending path loss according to the measurement situation of multiple CSI-RS in up CoMP measuring assembly in the present embodiment, configuration information comprises the transmitting power of multiple CSI-RS or CRS, and subscriber equipment can based on the meansigma methods of above-mentioned multiple CSI-RS or CRS or minima, the descending path loss of power calculation of power-subscriber equipment reception CSI-RS or CRS of CRS or CSI-RS is sent, thus ensure that the stability that descending path loss is estimated according to base station.

It should be noted that described serving BS is that described subscriber equipment reconfigures described up CoMP measuring assembly to fall within described serving BS be a kind of in user device configuration parameter manipulation in the present embodiment；Such as, from current up CoMP measuring assembly, increase and/or delete the configuration information of one or more RP；Again such as, the content of current up CoMP measuring assembly is reconfigured from the RSRP measurement based on CRS and measures into the RSRP based on CSI-RS, or reconfigure as the RSRP measurement etc. based on CRS from the RSRP measurement based on CSI-RS；Specifically repeat no more herein.

Step 220: obtain the power headroom reporting (PHR) PHR that the descending path loss according to the estimation of described up CoMP measuring assembly of described user equipment to report generates.

Concrete, no matter the RSRP being based on CSI-RS indicated in the up CoMP measuring assembly that described serving BS is described user device configuration measures or RSRP based on CRS measures, described subscriber equipment all estimates described descending path loss by the difference of acquisition RSP and RSRP；Wherein RSP is actual reference signal transmitting power, by serving BS by RRC signal deployment to subscriber equipment.

In addition, the present embodiment may also include step 230: when periodic measurement report timer expiry, or when up CoMP measure the RSRP concentrating certain or multiple RP less than thresholding X or descending path loss more than thresholding Y time, or when the descending path loss of estimation exceedes thresholding Z with the difference of the descending path loss of minimum RP, described serving BS receives the measurement report of described user equipment to report, and updates described up CoMP measuring assembly according to described measurement report；Wherein, described thresholding X, Y and Z are default threshold value.

Wherein, the measurement report of the user equipment to report that serving BS described in the present embodiment receives may also include that the CSI-RS index corresponding for RP or PCI(PhysicalCellIdentification, Physical Cell Identifier that in up CoMP measuring assembly, descending path loss is minimum)；Or the CSI-RS index corresponding for multiple RP that in up CoMP measuring assembly, descending path loss is minimum or PCI；Or CSI-RS index corresponding less than certain or multiple RP more than thresholding x of thresholding x or descending path loss for RSRP in up CoMP measuring assembly or PCI；Additionally, described measurement report may also include RSRP corresponding for CSI-RS or PCI corresponding for described RP or descending circuit loss value etc.；But it is not limited thereto.

Accordingly, after described serving BS receives the measurement report of described user equipment to report, also can update described up CoMP measuring assembly the up CoMP measuring assembly for updating described in described user device configuration according to described measurement report；Wireless resource control connection reconfiguration completion message is sent to serving BS after the described subscriber equipment up CoMP measuring assembly after receiving described renewal.Wherein, described serving BS updates the operation of up CoMP measuring assembly and specifically may be accomplished by, but it is not limited thereto: from described up CoMP measuring assembly, delete the RSRP RP corresponding more than the second predetermined threshold value less than the first predetermined threshold value or descending path loss, or increase new RP configuration information in described up CoMP measuring assembly.

Concrete, when described measurement report shows because of reasons such as position changes, described subscriber equipment causes that its radio condition changes, indivedual RP in described serving BS collocating uplink CoMP measuring assembly are likely to be no longer appropriate for the uplink coordinated communication of participating user equipment, now need described serving BS to be deleted by these RP, or increase new RP；Such as described serving BS deletes the RSRP RP corresponding more than thresholding x less than thresholding x or descending path loss from up CoMP measuring assembly, or described serving BS is according to other measurement results, SRS or RRM (RRM) measure increase new RP configuration information to as described in up CoMP measuring assembly；Certainly can also having other modes, the present embodiment does not repeat them here.

Can be seen that, the method adopting the embodiment of the present invention, it is the up CoMP measuring assembly of user device configuration by serving BS, so that described subscriber equipment estimates descending path loss according to this up CoMP measuring assembly, thus avoiding in up CoMP descending path loss with reference to probabilistic problem, and then avoid PUSCH/PUCCH transmitting power bigger than normal and the PH interference enhancing caused less than normal, RP successful receiving rate reduces, the problems such as uplink throughput reduction, subscriber equipment and serving BS is made to estimate descending path loss and PUSCH/PUCCH transmitting power more accurately, distribute ascending resource more accurately, reduce interference and improve uplink throughput.

Another embodiment of the present invention it is also proposed a kind of subscriber equipment, as it is shown in figure 5, this subscriber equipment 500 includes: acquiring unit 510, evaluation unit 520 and report unit 530；Wherein, described acquiring unit 510 is for obtaining the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration；The up CoMP measuring assembly that described acquiring unit 510 obtains comprises at least one measurement configuration information receiving some RP；Described evaluation unit 520 estimates descending path loss for the described up CoMP measuring assembly obtained according to described acquiring unit 510；Described report unit 530 for trigger power headroom reporting PHR process, generate PHR according to the descending path loss of described evaluation unit 520 estimation and also described PHR is reported described serving BS.

Additionally, in the present embodiment, described acquiring unit 510 is additionally operable to obtain the uplink power control parameter of described serving BS configuration；The uplink power control parameter that described acquiring unit obtains is associated with described up CoMP measuring assembly or is associated with the CSI-RS configuration information in described up CoMP measuring assembly or is associated with the CoMP cell configuration information in described up CoMP measuring assembly.

In addition, in the present embodiment, described acquiring unit 510 is additionally operable to the descending path loss obtaining the configuration of described serving BS with reference to related information；The described descending path loss that described acquiring unit obtains is associated with described up CoMP measuring assembly with reference to related information, estimates descending path loss in order to indicate according to CoMP measuring assembly, calculates power headroom PH and Physical Uplink Control Channel PUCCH/ Physical Uplink Shared Channel PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding.

Wherein, described evaluation unit 520 may also include (not shown): computing module and comparison module；Wherein, described computing module is for calculating the descending path loss of all RP in the described up CoMP measuring assembly that described acquiring unit 510 obtains, and informs described comparison module；Described comparison module is for the notice according to described computing module, relatively after the descending path loss of described all RP, in described up CoMP measuring assembly in all RP minimum descending path loss as estimation descending path loss, or the weighted mean of the descending path loss of all RP is as the descending path loss of estimation in described up CoMP measuring assembly, or calculate using the meansigma methods of the descending path loss of n RP in described up CoMP measuring assembly or weighted mean as lower walking along the street；Wherein n measures less than or equal to up CoMP and concentrates all RP numbers.

Optionally, in the present embodiment described in report unit 530 to may also include (not shown): determination module and trigger module；Wherein, described determination module is for whether the content judged in described up CoMP measuring assembly changes, and result of determination informs to described trigger module；Described trigger module is for receiving the notice of described determination module, and when described up CoMP measuring assembly increases and/or reduces the configuration information of at least one RP, or when the content of described up CoMP measuring assembly reconfigures as measuring based on the RSRP of CSI-RS from the filtered reference signal reception power RSRP measurement based on CRS, or when described up CoMP measuring assembly reconfigures as measuring based on the RSRP of CRS from the RSRP measurement based on CSI-RS, trigger PHR process.

Additionally, described in report unit 530 to may also include (not shown): processing module and generation module；Wherein, the descending path loss that described processing module is estimated for utilizing described evaluation unit calculates PH and PUCCH/PUSCH transmitting power, and result of calculation notifies described generation module；Described generation module is for obtaining the result of calculation of described processing module, and by the respective field of PHR message described in parameter read-in each in described result of calculation, generates described PHR.

Based on the above-mentioned ingredient of the present embodiment subscriber equipment, this subscriber equipment may also include (not shown): detection unit and transmitting element；Wherein, whether described detection unit is used for detecting periodic report intervalometer overtime, or the size of the RSRP or descending path loss corresponding predetermined threshold value respectively for detecting RP in described up CoMP measuring assembly, or the size of the descending path loss with the descending path loss difference of minimum RP with the 3rd predetermined threshold value for detecting the estimation of described evaluation unit, and testing result is informed to described transmitting element；Described transmitting element is for receiving the testing result of described detection unit, and when periodic report timer expiry, or when described up CoMP measure the RSRP concentrating at least one RP less than the first predetermined threshold value or descending path loss more than the second predetermined threshold value time, or when the descending path loss of estimation and the difference of the descending path loss of minimum RP are more than three predetermined threshold value, to described serving base stations report measurement report so that described serving BS updates described up CoMP measuring assembly according to described measurement report.

In the present embodiment, it is the up CoMP measuring assembly of user device configuration by serving BS, so that described subscriber equipment estimates descending path loss according to this up CoMP measuring assembly, thus avoiding in up CoMP descending path loss with reference to probabilistic problem, and then avoid PUSCH/PUCCH transmitting power bigger than normal and the PH interference enhancing caused less than normal, RP successful receiving rate reduces, the problems such as uplink throughput reduction, subscriber equipment and serving BS is made to estimate descending path loss and PUSCH/PUCCH transmitting power more accurately, distribute ascending resource more accurately, reduce interference and improve uplink throughput.

Another embodiment of the present invention it is also proposed a kind of base station, and as shown in Figure 6, this base station 600 includes: dispensing unit 610 and reception unit 620；Wherein, described dispensing unit 610 is used for as the uplink coordinated multiple spot CoMP measuring assembly of user device configuration；The up CoMP measuring assembly of described dispensing unit 610 configuration comprises at least one measurement configuration information receiving some RP；The PHR that described reception unit 620 generates for the descending path loss according to the estimation of described up CoMP measuring assembly obtaining described user equipment to report.

Wherein, described dispensing unit 610 is additionally operable to as described user device configuration uplink power control parameter；Described uplink power control parameter is associated with described up CoMP measuring assembly or is associated with the CSI-RS configuration information in described up CoMP measuring assembly or is associated with the CoMP cell configuration information in described up CoMP measuring assembly.

Additionally, described dispensing unit 610 is additionally operable to as the descending path loss of described user device configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to estimate descending path loss according to CoMP measuring assembly, calculate power headroom PH and Physical Uplink Control Channel PUCCH/ Physical Uplink Shared Channel PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding.

In the present embodiment, above-mentioned reception unit can be also used for receiving the measurement report of described user equipment to report.

It should be noted that the base station apparatus of the present embodiment may also include (not shown) updating block；Wherein, described updating block updates described up CoMP measuring assembly for the described measurement report received according to described reception unit.

It should be noted that, another embodiment of the present invention it is also proposed a kind of subscriber equipment, as shown in Figure 7, this subscriber equipment 700 includes: receiver 710, for obtaining the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；Processor 720, is used for: estimates descending path loss according to described up CoMP measuring assembly and generates power headroom reporting (PHR) PHR according to described descending path loss；Transmitter 730, for reporting described serving BS by described PHR.

Wherein, in the present embodiment, described receiver 710 is additionally operable to obtain the uplink power control parameter of described serving BS configuration；The uplink power control parameter that described receiver 710 obtains is associated with described up CoMP measuring assembly or is associated with the CSI-RS configuration information in described up CoMP measuring assembly or is associated with the CoMP cell configuration information in described up CoMP measuring assembly.

In addition, in the present embodiment, described receiver 710 is additionally operable to the descending path loss obtaining the configuration of described serving BS with reference to related information；The described descending path loss that described receiver 710 obtains is associated with described up CoMP measuring assembly with reference to related information, estimates descending path loss in order to indicate according to CoMP measuring assembly, calculates power headroom PH and Physical Uplink Control Channel PUCCH/ Physical Uplink Shared Channel PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding.

Wherein, described processor 720 can be additionally used in and calculates the descending path loss of all RP in the described up CoMP measuring assembly that described receiver obtains, and after comparing the descending path loss of described all RP, in described up CoMP measuring assembly in all RP minimum descending path loss as estimation descending path loss, or the weighted mean of the descending path loss of all RP is as the descending path loss of estimation in described up CoMP measuring assembly, or calculate using the meansigma methods of the descending path loss of n RP in described up CoMP measuring assembly or weighted mean as lower walking along the street；Wherein n measures less than or equal to up CoMP and concentrates all RP numbers.

Optionally, described processor 720 can be additionally used in for judging whether the content in described up CoMP measuring assembly changes in the present embodiment, and when described up CoMP measuring assembly increases and/or reduces the configuration information of at least one RP, or when the content of described up CoMP measuring assembly reconfigures as measuring based on the RSRP of CSI-RS from the filtered reference signal reception power RSRP measurement based on CRS, or when described up CoMP measuring assembly reconfigures as measuring based on the RSRP of CRS from the RSRP measurement based on CSI-RS, trigger PHR process.

Utilize described descending path loss to calculate PH and PUCCH/PUSCH transmitting power additionally, described processor 720 can be additionally used in, and by the respective field of PHR message described in parameter read-in each in described result of calculation, generate described PHR.

It should be noted that, another embodiment of the present invention it is also proposed a kind of base station, as shown in Figure 8, this base station 800 includes: processor 810, for for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, the up CoMP measuring assembly of described dispensing unit configuration comprises the measurement configuration information receiving some RP；Receiver 820, the PHR that the descending path loss according to the estimation of described up CoMP measuring assembly for obtaining described user equipment to report generates.

Wherein, described processor 810 is additionally operable to as described user device configuration uplink power control parameter；Described uplink power control parameter is associated with described up CoMP measuring assembly or is associated with the CSI-RS configuration information in described up CoMP measuring assembly or is associated with the CoMP cell configuration information in described up CoMP measuring assembly.

Additionally, described processor 810 is additionally operable to as the descending path loss of described user device configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to estimate descending path loss according to CoMP measuring assembly, calculate power headroom PH and Physical Uplink Control Channel PUCCH/ Physical Uplink Shared Channel PUSCH transmitting power according to the uplink power control parameter that CoMP measuring assembly is corresponding.

It should be noted that the described receiver 820 of the present embodiment can be additionally used in the measurement report receiving described user equipment to report, and update described up CoMP measuring assembly according to described measurement report.

It should be noted that, those skilled in the art readily understand, the subscriber equipment of the various power headroom reporting (PHR)s realizing coordinate multipoint communication described in above-described embodiment or base station can also as the part existence of the various network equipments or mobile terminal, and it is consistent with the description in above-described embodiment in realizing coordinate multipoint power of communications headroom reporting in the various network equipments or mobile terminal, thus comprise and above-described embodiment realizes the subscriber equipment of coordinate multipoint power of communications headroom reporting or the network equipment of base station or terminal also should be included within the protection domain of the application, do not repeat them here.

Professional can also should be able to recognize further, the unit of each example described in conjunction with the embodiments described herein and algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate the interchangeability of hardware and software, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel specifically can should be used for using different methods to realize described function to each, but this realization is it is not considered that exceed the scope of the embodiment of the present invention.

The method described in conjunction with the embodiments described herein or the step of algorithm can directly use the software module that hardware, processor perform, or the combination of the two is implemented.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the embodiment of the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.

The foregoing is only the preferred embodiment of the embodiment of the present invention; not in order to limit the embodiment of the present invention; within all spirit in the embodiment of the present invention and principle, any amendment of making, equivalent replacement, improvement etc., should be included within the protection domain of the embodiment of the present invention.

Claims

1. the power headroom reporting (PHR) method of a coordinate multipoint communication, it is characterised in that including:

Subscriber equipment obtains the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, and described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；

Described subscriber equipment estimates descending path loss according to described up CoMP measuring assembly；

Described subscriber equipment generates power headroom reporting (PHR) PHR according to described descending path loss and described PHR is reported described serving BS.

2. method according to claim 1, it is characterised in that the measurement configuration information of described RP includes:

The channel state information reference signals CSI-RS configuration index information of described RP；Or,

The CSI-RS configuration index information of described RP and the CSI-RS configuration information of correspondence thereof.

3. method according to claim 1, it is characterised in that the measurement configuration information of described RP includes:

The CoMP cell index of described RP and the CoMP cell configuration information of correspondence thereof.

4. the method according to any one of claims 1 to 3, it is characterised in that also include:

Obtain the uplink power control parameter of described serving BS configuration；

Described uplink power control parameter is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring:

Power headroom PH and Physical Uplink Control Channel PUCCH transmitting power；Or,

PH and Physical Uplink Shared Channel PUSCH transmitting power.

5. method according to claim 4, it is characterised in that also include:

Obtain the descending path loss of described serving BS configuration with reference to related information；

Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, obtains descending path loss and instruction according to described uplink power control parameter acquiring in order to indicate according to described CoMP measuring assembly:

PH and Physical Uplink Shared Channel PUSCH transmitting power.

6. the method according to any one of claim 1 to 5, it is characterised in that also include:

Update described up CoMP measuring assembly；

Described renewal specifically includes:

Increase and/or reduce the configuration information of described RP in described up CoMP measuring assembly；Or

Cell reference signals CRS in described up CoMP measuring assembly is reconfigured as CSI-RS；Or

CSI-RS in described up CoMP measuring assembly is reconfigured as CRS.

7. method according to claim 6, it is characterised in that:

The described up CoMP measuring assembly of described renewal, based on any one situation following:

Periodic report timer expiry；Or

Described up CoMP measures the Reference Signal Received Power RSRP concentrating at least one RP less than the first predetermined threshold value or descending path loss more than the second predetermined threshold value；Or

The difference of the minimum descending path loss corresponding for described RP of descending path loss and the described up COMP measuring assembly of estimation is more than the 3rd predetermined threshold value.

8. method according to claim 7, it is characterised in that described measurement report includes:

The CSI-RS corresponding for RP that in described up CoMP measuring assembly, descending path loss is minimum indexes or Physical Cell Identifier PCI；Or,

In described up CoMP measuring assembly, RSRP indexes or PCI more than the CSI-RS corresponding for RP of the 5th predetermined threshold value less than the 4th predetermined threshold value or descending path loss.

9. method according to claim 8, it is characterised in that described measurement report also includes:

The RSRP that described CSI-RS index is corresponding；Or,

RSRP that PCI is corresponding or descending path loss.

10. the method according to claim 1 to 9 any one, it is characterised in that:

When adopting PHMACCE power headroom medium education cell that described PHR is reported described serving BS, described PHMACCE comprises described CSI-RS index or CoMP cell index instruction, in order to RP corresponding for described PH is informed to described serving BS；

When adopting extension PHMACCE that described PHR is reported described serving BS, described extended MAC CE comprises described CSI-RS index or CoMP cell index instruction, the peak power output of subscriber equipment subscriber equipment that Serving cell according to the computed PH of the descending path loss of each RP and/or correspondence configures, in order to RP corresponding for described PH is informed to described serving BS.

11. according to the method described in claim 1 to 10 any one, it is characterised in that described descending path loss is:

Minimum descending path loss corresponding for RP in described up CoMP measuring assembly；Or,

The weighted mean of descending path loss corresponding for RP in described up CoMP measuring assembly；Or,

The meansigma methods of n descending path loss corresponding for RP or weighted mean in described up CoMP measuring assembly, described n is less than or equal to the positive integer of all RP numbers in described up CoMP measuring assembly.

12. the power headroom reporting (PHR) method of a coordinate multipoint communication, it is characterised in that including:

For the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, described up CoMP measuring assembly comprises the measurement configuration information receiving some RP；

Obtain the power headroom reporting (PHR) PHR that the descending path loss according to the estimation of described up CoMP measuring assembly of described user equipment to report generates.

13. method according to claim 12, it is characterised in that the measurement configuration information of described RP includes:

14. method according to claim 12, it is characterised in that the measurement configuration information of described RP includes:

15. according to the method described in claim 12 to 14 any one, it is characterised in that the method also includes:

For described user device configuration uplink power control parameter；

PH and Physical Uplink Shared Channel PUSCH transmitting power.

16. method according to claim 15, it is characterised in that the method also includes:

For the descending path loss of described user device configuration with reference to related information；

Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to obtain descending path loss and instruction according to described uplink power control parameter acquiring according to described CoMP measuring assembly:

PH and Physical Uplink Shared Channel PUSCH transmitting power.

17. according to the method described in any one of claim 12 to 16, it is characterised in that the method also includes:

Receive the measurement report of described user equipment to report；

Described up CoMP measuring assembly is updated according to described measurement report.

18. method according to claim 17, it is characterised in that described in the measurement report that receives include:

CSI-RS index corresponding more than the RP of the second predetermined threshold value less than the first predetermined threshold value or descending path loss for RSRP in described up CoMP measuring assembly or PCI.

19. method according to claim 17, it is characterised in that the up CoMP measuring assembly of described renewal includes:

The RSRP RP corresponding more than the second predetermined threshold value less than the first predetermined threshold value or descending path loss is deleted from described up CoMP measuring assembly；Or,

Described up CoMP measuring assembly increases new RP configuration information.

20. a subscriber equipment, it is characterised in that including: acquiring unit, evaluation unit and report unit；Wherein,

Described acquiring unit is for obtaining the uplink coordinated multiple spot CoMP measuring assembly of serving BS configuration, and the up CoMP measuring assembly that described acquiring unit obtains comprises the measurement configuration information receiving some RP；

Described evaluation unit estimates descending path loss for the up CoMP measuring assembly obtained according to described acquiring unit；

Described unit is reported to generate power headroom reporting (PHR) PHR for the descending path loss estimated according to described evaluation unit and described PHR is reported described serving BS.

21. subscriber equipment according to claim 20, it is characterised in that:

Described acquiring unit is additionally operable to obtain the uplink power control parameter of described serving BS configuration；The uplink power control parameter that described acquiring unit obtains is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring: power headroom PH and Physical Uplink Control Channel PUCCH transmitting power, or, PH and Physical Uplink Shared Channel PUSCH transmitting power.

22. the subscriber equipment according to claim 20 or 21, it is characterised in that:

Described acquiring unit is additionally operable to the descending path loss obtaining the configuration of described serving BS with reference to related information；The described descending path loss that described acquiring unit obtains is associated with described up CoMP measuring assembly with reference to related information, in order to indicate according to described CoMP measuring assembly obtain descending path loss and and indicate according to described uplink power control parameter acquiring:

PH and Physical Uplink Shared Channel PUSCH transmitting power.

23. according to the subscriber equipment described in any one of claim 20 to 22, it is characterised in that described evaluation unit includes: computing module and comparison module；Wherein,

Described computing module is for calculating the descending path loss of all RP in the described up CoMP measuring assembly that described acquiring unit obtains, and informs described comparison module；

Described comparison module, for the notice according to described computing module, relatively after the descending path loss of described all RP, determines minimum descending path loss according to following either type:

Minimum descending path loss corresponding for RP in described up CoMP measuring assembly as estimation descending path loss；Or,

The weighted mean of descending path loss corresponding for RP in described up CoMP measuring assembly as estimation descending path loss；Or,

In described up CoMP measuring assembly, the meansigma methods of the descending path loss of n RP or weighted mean are calculated as lower walking along the street；Wherein n is less than or equal to RP number positive integers all in described up CoMP measuring assembly.

24. according to the subscriber equipment described in any one of claim 20 to 23, it is characterised in that described in report unit also to include: determination module and trigger module；Wherein,

Described determination module is for judging whether the information that described up CoMP measuring assembly comprises changes, and result of determination informs to described trigger module；

Described trigger module is for receiving the notice of described determination module, and when described up CoMP measuring assembly increases and/or reduces the configuration information of RP, or when the information that described up CoMP measuring assembly comprises reconfigures as CSI-RS from cell reference signals CRS, or when the information that described up CoMP measuring assembly comprises reconfigures as CRS from CSI-RS, trigger PHR process.

25. according to the subscriber equipment described in any one of claim 20 to 24, it is characterised in that this device also includes: detection unit and transmitting element；Wherein,

Described detection unit is used for detecting following any information and testing result notifying described transmitting element:

Whether periodic report intervalometer is overtime；Or,

The size of the Reference Signal Received Power RSRP of RP and the first predetermined threshold value in described up CoMP measuring assembly；Or,

The size of descending path loss and the second predetermined threshold value；Or,

The descending path loss of described evaluation unit estimation and the size of the descending path loss difference of minimum RP with the 3rd predetermined threshold value；

Described transmitting element is for receiving the testing result of described detection unit, and when periodic report timer expiry, or when described up CoMP measure the RSRP concentrating at least one RP less than the first predetermined threshold value or descending path loss more than the second predetermined threshold value time, or when the descending path loss of estimation and the difference of the descending path loss of minimum RP are more than three predetermined threshold value, to described serving base stations report measurement report so that described serving BS updates described up CoMP measuring assembly according to described measurement report.

26. a base station, it is characterised in that including: dispensing unit and reception unit；Wherein,

Described dispensing unit is for for the uplink coordinated multiple spot CoMP measuring assembly of user device configuration, and the up CoMP measuring assembly of described dispensing unit configuration comprises the measurement configuration information receiving some RP；

The power headroom reporting (PHR) PHR that described reception unit generates for the descending path loss according to the estimation of described up CoMP measuring assembly obtaining described user equipment to report.

27. base station according to claim 26, it is characterised in that:

Described dispensing unit is additionally operable to as described user device configuration uplink power control parameter；Described uplink power control parameter is associated with described up CoMP measuring assembly, in order to indicate according to described uplink power control parameter acquiring:

PH and Physical Uplink Shared Channel PUSCH transmitting power.

28. the base station according to claim 26 or 27, it is characterised in that:

Described dispensing unit is additionally operable to as the descending path loss of described user device configuration with reference to related information；Described descending path loss is associated with described up CoMP measuring assembly with reference to related information, in order to indicate described subscriber equipment to obtain descending path loss and instruction according to described uplink power control parameter acquiring according to described CoMP measuring assembly:

PH and Physical Uplink Shared Channel PUSCH transmitting power.

29. according to the base station described in any one of claim 26 to 28, it is characterised in that:

Described reception unit, is additionally operable to receive the measurement report of described user equipment to report；

Described base station also includes updating block, updates described up CoMP measuring assembly for the described measurement report received according to described reception unit.