CN106489279B

CN106489279B - A kind of methods, devices and systems for being scheduled to user equipment

Info

Publication number: CN106489279B
Application number: CN201480080573.8A
Authority: CN
Inventors: 左勇; 熊芝兰; 杨红卫
Original assignee: Nokia Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2014-08-15
Filing date: 2014-08-15
Publication date: 2019-11-26
Anticipated expiration: 2034-08-15
Also published as: WO2016023235A1; CN106489279A

Abstract

The present invention provides a kind of in first node for providing the method for cooperation relevant information to second node, wherein, method includes the following steps: a. obtains spectrum efficiency of the user equipment on its available each channeling region for each user equipment at least one user equipment；B. according to the spectrum efficiency of at least one user equipment, determine that the cooperation relevant information for being used for the second node, the cooperation relevant information can be by the second nodes for dispatching at least one described user equipment；C. the cooperation relevant information is provided to the second node.According to the solution of the present invention, the effect of the frequency resource division in optimization ofdm system, user's selection, load balancing and power regulation in different subregions etc. can be played, and significant cell average gain and cell edge gain can be brought.

Description

A kind of methods, devices and systems for being scheduled to user equipment

Technical field

The present invention relates to field of communication technology more particularly to a kind of method, apparatus for being scheduled to user equipment And system.

Background technique

In the prior art, when carrying out cooperative multipoint transmission in link of ordering, it is typically based on partial frequency multiplexing (Fractional Frequency Reuse, FRR) Lai Shixian cooperative scheduling (Coordinated Scheduling, CS), should Scheme mainly cooperates between transfer point (such as base station), the minizone between overlay area to reduce different transfer points Interference.

Summary of the invention

The object of the present invention is to provide a kind of methods, devices and systems for being scheduled to user equipment.

According to an aspect of the present invention, one kind is provided in first node for providing cooperation related letter to second node The method of breath, wherein method includes the following steps:

A. for each user equipment at least one user equipment, the user equipment is obtained in its available each frequency Rate is multiplexed the spectrum efficiency on region, wherein at least one described user equipment is attached on the second node；

B. according to the spectrum efficiency of at least one user equipment, determine that the cooperation correlation for the second node is believed Breath, the cooperation relevant information can be by the second nodes for dispatching at least one described user equipment；

C. the cooperation relevant information is provided to the second node.

According to another aspect of the present invention, one kind is additionally provided in second node for being attached to second section The method that the user equipment of point is scheduled, wherein method includes the following steps:

A. the downlink metrical information for being attached at least one user equipment of the second node is sent to first node, or Person, frequency spectrum effect of each user equipment on its available each channeling region at least one described user equipment Rate；

B. the cooperation relevant information of the first node feedback is received；

C. according to the cooperation relevant information, at least one described user equipment is scheduled.

According to another aspect of the present invention, it is related for providing cooperation to second node in first node to provide one kind The first device of information, wherein the first device includes following device:

First acquisition device, for obtaining the user equipment for each user equipment at least one user equipment Spectrum efficiency on its available each channeling region, wherein at least one described user equipment is attached to described On two nodes；

First determining device determines for the spectrum efficiency according at least one user equipment and is used for described second The cooperation relevant information of node, the cooperation relevant information can be set by the second node for dispatching at least one described user It is standby；

Device is provided, for providing the cooperation relevant information to the second node.

According to another aspect of the present invention, provide it is a kind of in second node for being attached to the second node The second device that user equipment is scheduled, wherein the second device includes following device:

Sending device, for sending the downlink for being attached at least one user equipment of the second node to first node Metrical information, alternatively, each user equipment at least one described user equipment is in its available each channeling region On spectrum efficiency；

Second reception device, for receiving the cooperation relevant information of the first node feedback；

Dispatching device, for being scheduled at least one described user equipment according to the cooperation relevant information.

Compared with prior art, the invention has the following advantages that 1) support in first node, it is based on each user equipment Spectrum efficiency in available each spectrum reuse region, to determine the cooperation correlation letter of the cooperative scheduling for second node Breath, so that second node can carry out the scheduling of user equipment according to the cooperation relevant information；2) existing protocol can not changed On the basis of, it is based on existing X2 signaling cooperative transmission relevant information between first node and second node；3) based on cooperation The scheduling of relevant information can play the frequency resource in optimization ofdm system and divide, user's selection in different subregions, load The effect of weighing apparatus and power regulation etc., and significant cell average gain and cell edge gain can be brought.

Detailed description of the invention

By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other Feature, objects and advantages will become more apparent upon:

Fig. 1 is the flow diagram of the method for being scheduled to user equipment of one embodiment of the invention；

Fig. 2 is the flow diagram of the method for being scheduled to user equipment of another embodiment of the present invention；

Fig. 3 is the structural schematic diagram for the system that one embodiment of the invention is used to be scheduled user equipment；

Fig. 4 is the structural schematic diagram for the system that another embodiment of the present invention is used to be scheduled user equipment.

The same or similar appended drawing reference represents the same or similar component in attached drawing.

Specific embodiment

Present invention is further described in detail with reference to the accompanying drawing.

Fig. 1 is the flow diagram of the method for being scheduled to user equipment of one embodiment of the invention.

Wherein, the method for the present embodiment is mainly realized by first node and second node, wherein the first node Belong to same CoMP (Coordinated Multiple Points, cooperative multi-point) cluster with the second node.Wherein, institute Stating first node is preferably the node for initiating cooperation transmission；In the centralized CoMP network architecture, the first node includes But it is not limited to the central node (CN, Central Node) of the centralization CoMP network architecture；In the Distributed C oMP network architecture In, the first node can be any node in the distributed network.The second node is preferably to receive first node The node of the cooperation transmission of initiation, and the second node can be any section in Exist Network Structure in addition to first node Point.

Preferably, the first node and the network where the second node are that (LTE-Advanced, LTE are drilled LTE-A Into) network or subsequent upgrade network；It is highly preferred that the second node is LTE-A network in the centralized CoMP network architecture In eNB (evolved Node B, evolved base station)；In the Distributed C oMP network architecture, the first node and second Node is the eNB (evolved Node B, evolved base station) in LTE-A network.

It should be noted that the node and network are only for example, other existing or nodes for being likely to occur from now on and Network is such as applicable to the present invention, should also be included within the scope of protection of the present invention, and is incorporated herein by reference.

Method according to the present embodiment includes step S1, step S2, step S3, step S4, step S5 and step S6.

In step sl, second node sends at least one user equipment for being attached to the second node to first node Downlink metrical information, alternatively, send be attached at least one user equipment of second node each user equipment its can Spectrum efficiency (Spectrum Efficiency, SE) on each channeling (Frequency Reuse, FR) region. Wherein, when second node needs to send spectrum efficiency, for each user equipment at least one described user equipment, Two nodes calculate the user equipment in its available each channeling area according to the downlink metrical information from the user equipment Spectrum efficiency on domain.The implementation is surveyed with referring to first node in embodiment illustrated in fig. 2 according to the downlink of the user equipment Measure information, determine the implementation of spectrum efficiency of the user equipment on its available each channeling region it is identical or It is similar, it is not described in detail herein.

Preferably, at least one described user equipment is the activity (active) being attached in the user equipment of second node User equipment.

Wherein, the downlink metrical information includes that user equipment is measured for downlink, can be used in calculating institute State any information of spectrum efficiency.Preferably, the downlink metrical information includes but is not limited to:

Reference Signal Received Power that 1) user equipment measures (Reference Signal Receiving Power, RSRP)。

Wherein, user equipment periodically or acyclic can report its RSRP measured to the second node. Preferably, RSRP signaling of each user equipment based on X2 interface includes at most 9 signal strength information (Signal Power Information, SPI), 9 signal strength informations are respectively from the serving cell (serving cell) of user equipment and 8 A main phase adjacent cell (dominant adjacent cell).

2) downlink channel condition information (the Channel State that user equipment measures in system bandwidth Information, CSI), wherein the downlink channel condition information includes but is not limited to CQI (Channel Quality Indicator, channel quality instruction), PMI (Precoding Matrix Indicator, pre-coding matrix instruction), RI (Rank Indication, order instruction) etc..

3) downlink channel condition information that user equipment measures on each subband.

For example, system bandwidth includes 9 subbands, then the downlink metrical information includes user equipment in 9 subbands The downlink channel condition information measured on each subband.

Wherein, the spectrum reuse region is the region that can be used for carrying out spectrum reuse in system bandwidth；Preferably, one A system bandwidth can correspond to multiple channeling regions；It is highly preferred that available channeling region is 2 in a system bandwidth It is a.

Wherein, multiple subbands that channeling region can be included in correspondence system bandwidth, and each channeling Subband corresponding to region is different；Wherein, the number of sub-bands of each frequency field can according to number of sub-bands total in system bandwidth, And percent information between predefined channeling region determines.For example, LTE system bandwidth is 10M, the bandwidth is corresponding 9 subbands, it is assumed that CoMP cluster uses centralized network architecture, shares 3 second nodes in the centralized network structure, this is The wide available spectrum reuse region of regiment commander is FR1 and FR3；Wherein, FR1 is both participated in corresponding when cooperation for three second nodes Channeling region, FR3 are that three second nodes are not involved in corresponding spectrum reuse region when cooperation, and first node ( That is the central node of the centralized network structure) in percent information between predefined channeling region FR1 and FR3 be 2: 1, then it can determine that FR1 corresponds to 6 subbands in 9 subbands, FR3 corresponds to other 3 subbands in 9 subbands.

It should be noted that although based on the downlink metrical information in current 3GPP standard, it can be in second node really The fixed spectrum efficiency, however, not yet being defined at present for (such as base station between first node and second node in 3GPP standard Between) dedicated signaling of the transmission spectrum efficiency namely undefined how the spectrum efficiency is obtained in first node.This In embodiment, second node can be used various ways and send the spectrum efficiency to first node, for example, the frequency spectrum is imitated Rate, which is added in existing signaling (such as measurement report), to send the spectrum efficiency to first node；In another example can define newly Signaling between first node and second node come for transmitting the spectrum efficiency.

In step s 2, for each user equipment at least one user equipment, first node obtains the user and sets The standby spectrum efficiency on its available each channeling region.

Specifically, for each user equipment at least one user equipment, first node obtains the user equipment and exists The mode of spectrum efficiency on its available each channeling region includes but is not limited to:

1) second node sends spectrum efficiency in step sl, then in step s 2, at least one user equipment Each user equipment, first node directly acquire second node offer the user equipment in its available each channeling Spectrum efficiency on region.

2) second node sends downlink metrical information in step sl, then in step s 2, first node receives the second section The downlink metrical information at least one user equipment that point is sent, also, for each user at least one user equipment Equipment, first node determine that the user equipment is multiple in its available each frequency according to the downlink metrical information of the user equipment With the spectrum efficiency on region.The implementation will be described in detail with reference to the embodiment shown in FIG. 2.

In step s3, first node determines according to the spectrum efficiency of at least one user equipment and is used for the second section The cooperation relevant information of point.

Specifically, first node is executed according to the spectrum efficiency of at least one user equipment for cooperative scheduling Algorithm, to determine the cooperation relevant information for second node.

Wherein, the cooperation relevant information includes that can be used in any information of the cooperative scheduling of second node, the cooperation Relevant information can be by second node for dispatching at least one described user equipment.Preferably, the cooperation relevant information packet It includes but is not limited to:

1) the distribution information in channeling region；

Wherein, the distribution information in the channeling region is used to indicate at least one described user equipment and channeling The relations of distribution between region, namely be used to indicate each user equipment and be assigned channeling region extremely.For example, it is described extremely A few user equipment includes user equipment (UE) 1, UE2 and UE3, the available channeling region of user equipment include FR1 and FR3, the distribution information is used to indicate UE1 and UE2 is assigned in FR1, and UE3 is assigned into FR3.

2) percent information between the channeling region based on same frequency.

Wherein, the same frequency is system bandwidth used in CoMP cluster.The percent information is used to indicate frequency The ratio being multiplexed between number of sub-bands corresponding to region, for example, the percent information between channeling region FR1 and FR3 refers to Show that the ratio between number of sub-bands corresponding to FR1 and FR3 is 2: 1.

3) the service condition information in the channeling region of low-power.

Preferably, the spectrum reuse region of the low-power is used to indicate corresponding when all nodes are not involved in cooperation Low power section in channeling region.

For example, it is in frequency division multiplexing region FR3, FR3 that all nodes, which are not involved in corresponding channeling region when cooperation, It is divided into high power region and low power section according to power threshold, when the low power section is by use, first node determines The service condition information of the low power section.

It should be noted that above-mentioned cooperation relevant information is only for example, those skilled in the art, which will be understood that, any can be used for The information of the cooperative scheduling of two nodes should all be included in the range of cooperation relevant information of the present invention.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that the spectrum efficiency of any at least one user equipment according to, determines for described The implementation of the cooperation relevant information of second node, should be included in the scope of the present invention.

In step s 4, first node provides the cooperation relevant information to second node.

Specifically, first node includes but is not limited to the implementation that second node provides the cooperation relevant information:

1) the cooperation relevant information includes the distribution information in channeling region, and first node provides packet to second node Performance indicator information containing the distribution information.

Specifically, first node is based on existing for sending the X2 of performance indicator (Benefit Metric, BM) information Signaling to provide the performance indicator information comprising the distribution information to second node.

Preferably, the bit relative user equipment in the performance indicator information, and the value on bit identifies distribution To the channeling region of the user equipment of the bit.For example, in step s 2, first node obtain user equipment (UE) 1, UE2, UE3 spectrum efficiency on spectrum reuse region FR1 and FR3 respectively, wherein the number after " UE " is for indicating user The ID (IDentification) of equipment, as " 1 " in " UE1 " is used to indicate that the ID of the user equipment to be 1；In step s3, First node determines the distribution information of spectrum reuse region FR1 and FR3 according to above-mentioned spectrum efficiency.In step s 4, first segment The performance indicator information of the distribution information to be added is converted to binary number by point, and waits the ID of user equipmenies come really using this Bit corresponding to user equipment is determined, such as the last one bit corresponding UE 1 of the binary number, penultimate bit Corresponding UE 2, third last bit corresponding UE 3；Also, first node is according to the distribution information, each user is arranged Value on bit corresponding to equipment, as indicated that the corresponding user of the bit sets when the value being arranged on bit is " 0 " It is standby to be assigned to FR1, indicate that the corresponding user equipment of the bit is assigned to FR3 when the value on bit is " 1 "；It connects , which is converted to decimal number by first node, and based on the existing X2 letter for sending performance indicator information It enables to provide the performance indicator information that this includes distribution information to second node.

It should be noted that a performance indicator information can be associated with one or more CoMP setting, to quantify assisting Desired benefit in working as dispatcher；If first node provides performance indicator information to second node, which can Always second node is provided in combination with CoMP setting.Since performance indicator information can be based on downlink metrical information come really It is fixed, and the Information Granularity of downlink channel condition information may be broadband or subband, the Information Granularity of RSRP is broadband, therefore, is made For another scheme of this implementation, can define the performance indicator information of enhancing, the performance indicator information of the enhancing can Selecting Information Granularity includes PRB grades or broadband grade, to support associated CoMP to be arranged, to be used in the present embodiment to the second section Point provides cooperation relevant information.

2) the cooperation relevant information includes the percent information between the channeling region based on same frequency, and/or, The service condition information in the channeling region of low-power.First node believes the percent information and/or the service condition CoMP setting is added in breath, and provides CoMP setting to second node.

Wherein, the CoMP setting pre-defines in agreement used by the CoMP network architecture for configuring CoMP transmission The multiple format of CoMP setting.

Specifically, the percent information and/or the service condition information are added to predetermined by first node CoMP is arranged in format, to generate specific CoMP setting, and provides CoMP setting to second node；Preferably, described The Information Granularity of CoMP setting is PRB (Physical Resource Block, Physical Resource Block) grade or broadband grade.

3) the cooperation relevant information includes channel state information of each user equipment on each subband, the cooperation Relevant information includes the service condition information in the channeling region of low-power.First node to the second node by sending Enhance RNTP signaling, provides the service condition information to the second node.

Wherein, the Information Granularity of the enhancing RNTP signaling is scaled up to frequency domain or time domain, can be used for transmitting specific The service condition information in the channeling region of frequency or time upper low-power；Preferably for enhancing RNTP signaling institute It the frequency of instruction or time, can be described indicated to exchange by the status report between first node and second node Frequency or on the time, the service condition in the channeling region of low-power.

Preferably, when first node determines the low power section in channeling region by use, first node is just true The service condition information of the fixed low power section, and as cooperation relevant information or a part for the relevant information that cooperates, it mentions Supply second node.

Specifically, first node can determine the low power section in frequency division multiplexing region in several ways, to make The decision of power distribution.For example, first node can obtain power threshold, and root according to the enhancing RNTP signaling from second node Determine the low power section in frequency division multiplexing region, in real time according to the power threshold to make the decision of power distribution；In another example the One node can determine the low power section in frequency division multiplexing region according to power threshold predetermined, to make power distribution It determines.

It should be noted that first node can make power for the node of its control in the centralized CoMP network architecture The decision of distribution, and by the CoMP of Load Information Message be arranged the decision is sent in the network architecture all second Node；In the Distributed C oMP network architecture, first node itself can make the decision of power distribution for the first node, and lead to The decision is sent to adjacent second node by the CoMP setting of overload informational message.

It should be noted that being, although in above-mentioned implementation, first node, which is all made of existing X2 signaling, to be come to the second section Point provides cooperation relevant information, however those skilled in the art will be understood that and can define between first node and second node New signaling provides cooperation relevant information from first node to second node.For example, can be in X2 interface agreement, increase pair The definition of the signaling format of information is distributed, first node can be used the signaling format to provide the distribution letter to second node Breath.

It should be noted that above-mentioned implementation can combine.For example, first node is using above-mentioned implementation 1) come To second node provide comprising distribution information performance indicator information, and using above-mentioned implementation 2) come to second node offer It joined the CoMP setting of percent information and service condition information；In another example above-mentioned implementation 1 can be used in first node) come To second node provide comprising distribution information performance indicator information, and using above-mentioned implementation 2) come to second node offer Joined the CoMP setting of percent information, and using above-mentioned implementation 3) enhance RNTP signaling to send to second node, come Service condition information is provided to second node.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System should all wrap it should be appreciated by those skilled in the art that any provide the implementation of the cooperation relevant information to second node Containing within the scope of the invention.

In step s 5, second node receives the cooperation relevant information of first node feedback.

In step s 6, second node adjusts at least one described user equipment according to the cooperation relevant information Degree.

Specifically, second node is scheduled at least one described user equipment according to the cooperation relevant information Implementation includes but is not limited to:

1) in step s 5, second node receives the performance indicator information comprising distribution information；Then in step s 6, second Node executes following steps: the performance indicator information is converted to binary message by second node；And according to two after conversion Binary information obtains the distribution information in channeling region；Second node is according to the distribution information, to being attached to second node At least one user equipment be scheduled.

For example, the performance indicator information received is converted to binary message by second node, and according to two after conversion Binary information, determine distribution information be used to indicate user equipment (UE) 1 and UE2 be assigned to FR1, user equipment (UE) 3 be assigned to FR3, then second node carries out cooperative scheduling to UE1, UE2 and UE3 according to the distribution information.

2) in step s 5, second node receives the CoMP setting from first node；Then in step s 6, second node According to the format definition of CoMP setting, CoMP setting is parsed, the ratio between the channeling region of same frequency is obtained Example information, and/or, the service condition information in the channeling region of low-power.

3) in step s 5, second node receives the enhancing RNTP signaling from first node；Then in step s 6, second Node parses the enhancing RNTP signaling, obtains the service condition information in channeling region.

It should be noted that when defining new signaling between first node and second node, from first node to the When two nodes provide cooperation relevant information, second node obtains cooperation phase directly according to the format of the new signaling to parse Close information.

It should be noted that above-mentioned implementation can combine.For example, second node is using above-mentioned implementation 1) come Distribution information is obtained, and using above-mentioned implementation 2) percent information and service condition information are obtained, then, second node root According to the distribution information, percent information and service condition information, cooperative scheduling is carried out at least one described user equipment；Example again Such as, second node is using above-mentioned implementation 1) obtain distribution information, and using above-mentioned implementation 2) obtain ratio letter Breath, using above-mentioned implementation 3) service condition information is obtained, then, second node is according to the distribution information, ratio letter Breath and service condition information carry out cooperative scheduling at least one described user equipment.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that it is any according to the cooperation relevant information, at least one described user equipment is carried out The implementation of scheduling, should be included in the scope of the present invention.

In the prior art, FRR is typically based on to realize cooperative scheduling, although handling up for edge cell can be improved in the program Amount, however the program will reduce the average throughput of system.Also, the scheme based on FRR can bring some problems, such as cannot Radio resource is preferably divided based on the multiplexing of different frequency, can not for another example balance the load between neighboring community.

It, can be in first node, based on each user equipment in its available each frequency according to the scheme of the present embodiment Spectrum efficiency in spectrum multiplexing region, to determine the cooperation relevant information of the cooperative scheduling for second node, so that the second section Point can carry out the scheduling of user equipment according to the cooperation relevant information；Also, the program can be in the base for not changing existing protocol On plinth, it is based on existing X2 signaling cooperative transmission relevant information between first node and second node；And it is based in the program The scheduling for the relevant information that cooperates can play the frequency resource in optimization ofdm system and divide, user's selection in different subregions, bear Carry the effect of balanced and power regulation etc..

In addition, the scheme of this implementation can be system band by the evaluation in standard 3GPP LTE system grade emulation tool Come significant gain, such as, it can be achieved that up to 19.9% cell average gain and 54.5% or more cell edge gain. It should be noted that the gain of this programme bring and specific TX (output) quantity and CQI feedback, rank adaptation, OLC and HARQ Deng detailed design it is related.In addition, it should be noted that, the maximum number of available subscribers equipment indicated in performance indicator information The performance of amount, the cooperative scheduling that may be realized to the present embodiment has an impact.

Fig. 2 is the flow diagram of the method for being scheduled to user equipment of another embodiment of the present invention.Its In, the method for the present embodiment is mainly realized by first node and second node；Wherein, in illustrated embodiment referring to Fig.1 Any explanation made by the first node and second node, by reference comprising in this present embodiment.

Method according to the present embodiment includes step S1, step S2, step S3, step S4, step S5 and step S6；Its In, the step S2 further comprises step S21 and step S22.Wherein, the step S1, step S2, step S3, step S4, Step S5 and step S6 are described in detail with reference to the embodiment shown in FIG. 1, and are incorporated herein by reference, no longer superfluous It states.

In step sl, second node sends at least one user equipment for being attached to the second node to first node Downlink metrical information.

Specifically, second node reception is attached to each user equipment at least one user equipment of the second node Downlink metrical information, and send to first node the downlink metrical information of each user equipment.

In the step s 21, first node receives the downlink measurement from least one second node, described user equipment Information.

It should be noted that second node can be periodically or aperiodically to first node report downlink measurement letter Breath, as second node reports downlink measurement letter to first node for the period with 120 milliseconds, 240 milliseconds, 480ms or 640 millisecond Breath；For another example, second node reports downlink metrical information to first node according to the request of first node.

In step S22, for each user equipment at least one described user equipment, first node is according to the use The downlink metrical information of family equipment determines spectrum efficiency of the user equipment on its available each channeling region.

Specifically, for each user equipment at least one described user equipment, first node is set according to the user Standby downlink metrical information determines the realization side of spectrum efficiency of the user equipment on its available each channeling region Formula includes but is not limited to:

1) the downlink metrical information of user equipment includes the Reference Signal Received Power that user equipment measures, first node Frequency spectrum effect of the user equipment on its available each channeling region is determined based on the Reference Signal Received Power Rate.

Preferably for each available channeling region, it is true that first node is based on Reference Signal Received Power Fixed average SINR (Signal to Interference plus Noise of the user equipment on the channeling region Ratio, Signal to Interference plus Noise Ratio), and determine the user equipment on the channeling region according to the SINR that is averaged Spectrum efficiency.

As an example, the available channeling region of user equipment includes FR1 and FR3, and user equipment (UE) 1 measures Reference Signal Received Power include 9 signal strength informations, be respectively as follows: P₁, P₂..., P₉, wherein P₁For the clothes from UE1 The signal strength information for cell of being engaged in, P₂..., P₉For the signal strength information of 8 main phase adjacent cells from UE1,8 main phases Adjacent cell is identified as j, j=2 ..., 9.Then first node calculates average SINR of the UE1 on FR1 based on following formula:

Wherein, SINR_FR1The average SINR for being UE1 on FR1；SINR_FR3The average SINR for being UE1 on FR3；P_j, j= 2 ..., 9 be the signal strength information from main phase adjacent cell j, wherein when UE1 is on FR1,8 main phase adjacent cells It is the interfered cell of the serving cell of UE1；σ²For white noise acoustical power.

Also, first node calculates average SINR of the UE1 on FR3 based on following formula:

Wherein, P₄And P₇For the signal strength information from main phase adjacent cell 4 and 7；Wherein, when UE1 is on FR3, UE1 The interfered cell of serving cell include main phase adjacent cell 4 and main phase adjacent cell 7.Then, first node based on following formula come Calculate spectrum efficiency and UE1 spectrum efficiency on FR3 of the UE1 on FR1:

SE_FR1=log₂(1+SINR_FR1)

SE_FR3=log₂(1+SINR_FR3)

Wherein, SE_FR1The spectrum efficiency for being UE1 on FR1；SE_FR3The spectrum efficiency for being UE1 on FR3.

2) the downlink metrical information of the user equipment includes the down channel shape that user equipment measures in system bandwidth State information, alternatively, the downlink channel condition information that user equipment measures on each subband, first node is based on down channel Status information determines spectrum efficiency of the user equipment on its available each channeling region.

Preferably for each available channeling region, it is true that first node is based on downlink channel condition information Fixed average SINR of the user equipment on the channeling region, and determine the user equipment in the frequency according to the SINR that is averaged Rate is multiplexed the spectrum efficiency on region.

As an example, the available channeling region of user equipment includes FR1 and FR3, and first node is according to user The downlink channel condition information that equipment UE1 is measured in system bandwidth, alternatively, what user equipment measured on each subband Downlink channel condition information, to determine average CQI of the UE1 on FR1 and FR3, and the average CQI according to UE1 on FR1 respectively Determine average SINR of the UE1 on FR1, i.e.,Determine that UE1 is flat on FR3 according to average CQI of the UE1 on FR3 Equal SINR, i.e.,Then, first node is calculated spectrum efficiency and UE1 of the UE1 on FR1 based on following formula and existed Spectrum efficiency on FR3:

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any each user equipment at least one described user equipment, according to this The downlink metrical information of user equipment determines spectrum efficiency of the user equipment on its available each channeling region Implementation should be included in the scope of the present invention.

According to the scheme of the present embodiment, first node can be determined according to received downlink metrical information it is described at least Spectrum efficiency of each user equipment in available each spectrum reuse region in one user equipment, without first New signaling is defined between node and second node to transmit the spectrum efficiency, it can be on the basis for not changing existing protocol On, the transmission of information is realized based on existing X2 signaling.

Fig. 3 is the structural schematic diagram of the system for being scheduled to user equipment of one embodiment of the invention.According to The system of the present embodiment includes first node and second node, and the first node includes first device, which includes First acquisition device 2, the first determining device 3 and first provide device 4；The second node includes second device, second dress It sets including sending device 1, the second reception device 5 and dispatching device 6.

The sending device 1 of second node sends at least one user equipment for being attached to the second node to first node Downlink metrical information, alternatively, send be attached at least one user equipment of second node each user equipment its can Spectrum efficiency on each channeling region.Wherein, when sending device 1 needs to send spectrum efficiency, for described Each user equipment at least one user equipment, sending device 1 is according to the downlink metrical information from the user equipment, meter Calculate spectrum efficiency of the user equipment on its available each channeling region.The implementation, with the reality referring to shown in Fig. 4 It applies the second determining device 22 in example and determines that the user equipment is available each at its according to the downlink metrical information of the user equipment The implementation of spectrum efficiency on channeling region is same or similar, is not described in detail herein.

Preferably, at least one described user equipment is that the active user being attached in the user equipment of second node is set It is standby.

1) Reference Signal Received Power that user equipment measures.

Wherein, user equipment periodically or acyclic can report its RSRP measured to the second node. Preferably, RSRP signaling of each user equipment based on X2 interface includes at most 9 signal strength informations, 9 signal strengths Information is respectively from the serving cell of user equipment and 8 main phase adjacent cells.

2) downlink channel condition information that user equipment measures in system bandwidth, wherein the downlink channel condition Information includes but is not limited to CQI, PMI, RI etc..

It should be noted that although based on the downlink metrical information in current 3GPP standard, it can be in second node really The fixed spectrum efficiency, however, not yet being defined at present for (such as base station between first node and second node in 3GPP standard Between) dedicated signaling of the transmission spectrum efficiency namely undefined how the spectrum efficiency is obtained in first node.This In embodiment, sending device 1 can be used various ways and send the spectrum efficiency to first node, for example, by the frequency spectrum Efficiency, which is added in existing signaling (such as measurement report), to send the spectrum efficiency to first node；In another example can define new Signaling come for transmitting the spectrum efficiency between first node and second node.

For each user equipment at least one user equipment, the first acquisition device 2 of first node obtains the use Spectrum efficiency of the family equipment on its available each channeling region.

Specifically, for each user equipment at least one user equipment, the first acquisition device 2 obtains the user and sets The mode of the standby spectrum efficiency on its available each channeling region includes but is not limited to:

1) sending device 1 of second node sends spectrum efficiency, then for each user at least one user equipment Equipment, the first acquisition device 2 of first node directly acquire the user equipment of second node offer in its available each frequency Rate is multiplexed the spectrum efficiency on region.

2) sending device 1 of second node sends downlink metrical information, then the first acquisition device 2 of first node receives the The downlink metrical information at least one user equipment that two nodes are sent, also, for each of at least one user equipment User equipment, the first acquisition device 2 determine that the user equipment is available every at its according to the downlink metrical information of the user equipment Spectrum efficiency on a channeling region.The implementation will be described in detail with reference to the embodiment shown in FIG. 4.

First determining device 3 determines the association for being used for second node according to the spectrum efficiency of at least one user equipment Make relevant information.

Specifically, the first determining device 3 is executed and is adjusted for cooperating according to the spectrum efficiency of at least one user equipment The algorithm of degree, to determine the cooperation relevant information for second node.

1) the distribution information in channeling region；

2) percent information between the channeling region based on same frequency.

3) the service condition information in the channeling region of low-power.

First, which provides device 4, provides the cooperation relevant information to second node.

Specifically, the first offer device 4 includes but not to the implementation that second node provides the cooperation relevant information It is limited to:

1) the first offer device 4 further comprises that the first son provides device (not shown).The cooperation relevant information includes The distribution information in channeling region, the first son provide device and provide the performance indicator comprising the distribution information to second node Information.

Specifically, the first son provides device based on existing for sending performance indicator (Benefit Metric, BM) letter The X2 signaling of breath to provide the performance indicator information comprising the distribution information to second node.

Preferably, the bit relative user equipment in the performance indicator information, and the value on bit identifies distribution To the channeling region of the user equipment of the bit.For example, the first acquisition device 2 obtain user equipment (UE) 1, UE2, The UE3 spectrum efficiency on spectrum reuse region FR1 and FR3 respectively, wherein the number after " UE " is for indicating user equipment ID (IDentification), as " 1 " in " UE1 " is used to indicate that ID of the user equipment to be 1；First determining device 3 According to above-mentioned spectrum efficiency, the distribution information of spectrum reuse region FR1 and FR3 is determined.First son provides device will be to be added described The performance indicator information of distribution information is converted to binary number, and determines that user equipment institute is right using the ID of the grade user equipmenies The bit answered, such as the last one bit corresponding UE 1 of the binary number, penultimate bit corresponding UE 2, reciprocal the Three bit corresponding UEs 3；Also, the first son offer device is according to the distribution information, right each user equipment institute is arranged The value on bit answered indicates that the corresponding user equipment of the bit is assigned as when the value being arranged on bit is " 0 " To FR1, indicate that the corresponding user equipment of the bit is assigned to FR3 when the value on bit is " 1 "；Then, the first son Device is provided, the binary number is converted into decimal number, and based on it is existing for send the X2 signaling of performance indicator information come The performance indicator information that this includes distribution information is provided to second node.

It should be noted that a performance indicator information can be associated with one or more CoMP setting, to quantify assisting Desired benefit in working as dispatcher；If the first son, which provides device, provides performance indicator information, the performance indicator to second node Information always can be provided to second node in combination with CoMP setting.Since performance indicator information can be based on downlink measurement letter Breath is to determine, and the Information Granularity of downlink channel condition information may be broadband or subband, and the Information Granularity of RSRP is broadband, because This can define the performance indicator information of enhancing, the performance indicator information of the enhancing as another scheme of this implementation Optional information granularity include PRB grades or broadband grade, to support associated CoMP to be arranged, to be used in the present embodiment to the Two nodes provide cooperation relevant information.

2) the first offer device 4 further comprises that the second son provides device (not shown).The cooperation relevant information includes Percent information between channeling region based on same frequency, and/or, the service condition in the channeling region of low-power Information.Second son provides device and the percent information and/or the service condition information is added CoMP setting, and to the second section Point provides CoMP setting.

Specifically, the second son provides device and is added to the percent information and/or the service condition information and determines in advance In the CoMP setting format of justice, to generate specific CoMP setting, and CoMP setting is provided to second node；Preferably, institute The Information Granularity for stating CoMP setting is PRB (Physical Resource Block, Physical Resource Block) grade or broadband grade.

3) the first offer device 4 further comprises that third provides device (not shown).The cooperation relevant information includes Channel state information of each user equipment on each subband, the cooperation relevant information include the channeling area of low-power The service condition information in domain.Third provides device by sending enhancing RNTP signaling to the second node, to described the Two nodes provide the service condition information.

Preferably, determine the low power section in channeling region by use, third is sub when third provides device The service condition information that device just determines the low power section is provided, and as cooperation relevant information or cooperation relevant information A part, be supplied to second node.

Specifically, third provides device can determine the low power section in frequency division multiplexing region in several ways, To make the decision of power distribution.For example, third, which provides device, to be obtained according to the enhancing RNTP signaling from second node Power threshold, and according to the low power section in the power threshold in real time determining frequency division multiplexing region, to make power distribution It determines；In another example third provides device can determine the low-power in frequency division multiplexing region according to power threshold predetermined Region, to make the decision of power distribution.

It should be noted that be, although in above-mentioned implementation, the first offer device 4, which is all made of existing X2 signaling, to be come to the Two nodes provide cooperation relevant information, however will be understood that can be between first node and second node by those skilled in the art New signaling is defined, provides cooperation relevant information from first node to second node.For example, can increase in X2 interface agreement Add the definition of the signaling format to distribution information, the first offer device 4 can be used the signaling format to provide institute to second node State distribution information.

It should be noted that above-mentioned implementation can combine.For example, the first son, which provides device, uses above-mentioned realization side Formula 1) to provide the performance indicator information comprising distribution information to second node, and the second son provides device and uses above-mentioned realization side Formula 2) the CoMP setting that joined percent information and service condition information is provided to second node；In another example the first son provides Above-mentioned implementation 1 can be used in device) to provide the performance indicator information comprising distribution information to second node, and the second son mentions For device using above-mentioned implementation 2) CoMP joined percent information to second node offer is arranged, and third provides Device is using above-mentioned implementation 3) enhance RNTP signaling to send to second node, service condition letter is provided to second node Breath.

Second reception device 5 of second node receives the cooperation relevant information of first node feedback.

The dispatching device 6 of second node adjusts at least one described user equipment according to the cooperation relevant information Degree.

Specifically, dispatching device 6 is scheduled at least one described user equipment according to the cooperation relevant information Implementation includes but is not limited to:

1) the second reception device 5 further comprises sub- reception device (not shown), and dispatching device 6 further comprises converting means Set (not shown), the second acquisition device (not shown) and sub- dispatching device (not shown).Sub- reception device is received comprising distribution letter The performance indicator information of breath；Then the performance indicator information is converted to binary message by conversion equipment；Second acquisition device root According to the binary message after conversion, the distribution information in channeling region is obtained；Sub- dispatching device is right according to the distribution information At least one user equipment for being attached to second node is scheduled.

For example, the performance indicator information received is converted to binary message by conversion equipment, the second acquisition device according to Binary message after conversion determines that distribution information is used to indicate user equipment (UE) 1 and UE2 is assigned to FR1, user equipment UE3 is assigned to FR3, then sub- dispatching device carries out cooperative scheduling to UE1, UE2 and UE3 according to the distribution information.

2) the second reception device 5 receives the CoMP setting from first node；The then lattice that dispatching device 6 is arranged according to CoMP Formula definition parses CoMP setting, obtains the percent information between the channeling region of same frequency, and/or, low function The service condition information in the channeling region of rate.

3) the second reception device 5 receives the enhancing RNTP signaling from first node；Then dispatching device 6 is to the enhancing RNTP signaling is parsed, and the service condition information in channeling region is obtained.

It should be noted that when defining new signaling between first node and second node, from first node to the When two nodes provide cooperation relevant information, dispatching device 6 obtains cooperation phase directly according to the format of the new signaling to parse Close information.

It should be noted that above-mentioned implementation can combine.For example, dispatching device 6 uses above-mentioned implementation 1) Obtain distribution information, and using above-mentioned implementation 2) obtain percent information and service condition information, then, dispatching device 6 carry out cooperative scheduling according to the distribution information, percent information and service condition information, at least one described user equipment； In another example dispatching device 6 is using above-mentioned implementation 1) obtain distribution information, and using above-mentioned implementation 2) obtain ratio Example information, using above-mentioned implementation 3) obtain service condition information, then, dispatching device 6 according to the distribution information, compare Example information and service condition information carry out cooperative scheduling at least one described user equipment.

Fig. 4 is the structural schematic diagram of the system for being scheduled to user equipment of another embodiment of the present invention.Root System according to the present embodiment includes first node and second node, and the first node includes first device, the first device packet Include the first acquisition device 2, the first determining device 3 and first provides device 4, wherein first acquisition device 2 further comprises First receiving device 21 and the second determining device 22；The second node includes second device, which includes sending dress Set the 1, second reception device 5 and dispatching device 6.Wherein, the sending device 1, the first acquisition device 2, the first determining device 3, First offer device 4, the second reception device 5 and dispatching device 6 are described in detail with reference to the embodiment shown in FIG. 3, and to draw Mode is incorporated herein, and is repeated no more.

In this implementation, the sending device 1 of second node is attached at least the one of the second node to first node transmission The downlink metrical information of a user equipment.

Specifically, the reception of sending device 1 is attached to each user equipment at least one user equipment of the second node Downlink metrical information, and send to first node the downlink metrical information of each user equipment.

First receiving device 21 receives the downlink metrical information from least one second node, described user equipment.

For each user equipment at least one described user equipment, the second determining device 22 is according to the user equipment Downlink metrical information, determine spectrum efficiency of the user equipment on its available each channeling region.

Specifically, for each user equipment at least one described user equipment, the second determining device 22 is according to this The downlink metrical information of user equipment determines spectrum efficiency of the user equipment on its available each channeling region Implementation includes but is not limited to:

1) the downlink metrical information of user equipment includes the Reference Signal Received Power that user equipment measures, and second determines Device 22 determines the user equipment on its available each channeling region based on the Reference Signal Received Power Spectrum efficiency.

Preferably for each available channeling region, the second determining device 22 is received based on reference signal Power determines average SINR of the user equipment on the channeling region, and determines the user equipment according to the SINR that is averaged Spectrum efficiency on the channeling region.

As an example, the available channeling region of user equipment includes FR1 and FR3, and user equipment (UE) 1 measures Reference Signal Received Power include 9 signal strength informations, be respectively as follows: P₁, P₂..., P₉, wherein P₁For the clothes from UE1 The signal strength information for cell of being engaged in, P₂..., P₉For the signal strength information of 8 main phase adjacent cells from UE1,8 main phases Adjacent cell is identified as j, j=2 ..., 9.Then the second determining device 22 calculates UE1 being averaged on FR1 based on following formula SINR:

Also, the second determining device 22 calculates average SINR of the UE1 on FR3 based on following formula:

Wherein, P₄And P₇For the signal strength information from main phase adjacent cell 4 and 7；Wherein, when UE1 is on FR3, UE1 The interfered cell of serving cell include main phase adjacent cell 4 and main phase adjacent cell 7.Then, the second determining device 22 is based on following Formula calculates spectrum efficiency and UE1 spectrum efficiency on FR3 of the UE1 on FR1:

SE_FR1=log₂(1+SINR_FR1)

SE_FR3=log₂(1+SINR_FR3)

2) the downlink metrical information of the user equipment includes the down channel shape that user equipment measures in system bandwidth State information, alternatively, the downlink channel condition information that user equipment measures on each subband, the second determining device 22 is based on down Row channel state information determines spectrum efficiency of the user equipment on its available each channeling region.

Preferably for each available channeling region, the second determining device 22 is based on downlink channel condition Information determines average SINR of the user equipment on the channeling region, and determines the user equipment according to the SINR that is averaged Spectrum efficiency on the channeling region.

As an example, the available channeling region of user equipment includes FR1 and FR3, the second determining device 22 According to the downlink channel condition information that user equipment (UE) 1 measures in system bandwidth, alternatively, user equipment is surveyed on each subband The downlink channel condition information measured, to determine average CQI of the UE1 on FR1 and FR3 respectively, and according to UE1 on FR1 Average CQI determines average SINR of the UE1 on FR1, i.e.,Determine UE1 in FR3 according to average CQI of the UE1 on FR3 On average SINR, i.e.,Then, the second determining device 22 calculates frequency spectrum of the UE1 on FR1 based on following formula The spectrum efficiency of efficiency and UE1 on FR3:

It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, this hair Specific integrated circuit (ASIC) can be used in bright each device or any other is realized similar to hardware device.In one embodiment In, software program of the invention can be executed to implement the above steps or functions by processor.Similarly, of the invention Software program (including relevant data structure) can be stored in computer readable recording medium, for example, RAM memory, Magnetic or optical driver or floppy disc and similar devices.In addition, some of the steps or functions of the present invention may be implemented in hardware, example Such as, as the circuit cooperated with processor thereby executing each step or function.

It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included in the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.This Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in system claims is multiple Unit or device can also be implemented through software or hardware by a unit or device.The first, the second equal words are used to table Show title, and does not indicate any particular order.

Claims

1. a kind of be used to provide the first device of cooperation relevant information to second node in first node, wherein first dress It sets including following device:

First acquisition device, for obtaining the user equipment at it for each user equipment at least one user equipment Spectrum efficiency on available each channeling region, wherein at least one described user equipment is attached to second section Point on；

First determining device determines for the spectrum efficiency according at least one user equipment and is used for the second node Cooperation relevant information, which can be by the second node for dispatching at least one described user equipment；

2. first device according to claim 1, wherein the cooperation relevant information includes at least one of the following:

The distribution information in channeling region；

Percent information between channeling region based on same frequency；

The service condition information in the channeling region of low-power.

3. first device according to claim 2, wherein the cooperation relevant information includes the distribution information, described There is provided device includes following device:

First son provides device, for providing the performance indicator information comprising the distribution information to the second node, wherein Bit relative user equipment in the performance indicator information, and the value mark on bit distributes to the user of the bit The channeling region of equipment.

4. first device according to claim 2, wherein the cooperation relevant information include the percent information and/or The service condition information, the offer device includes following device:

Second son provides device, for the percent information and/or the service condition information to be added CoMP setting, and to institute It states second node and the CoMP setting is provided.

5. first device according to claim 2, wherein downlink metrical information includes each user equipment in each subband On channel state information, the cooperation relevant information includes the service condition information, and the offer device includes following dress It sets:

Third provides device, for enhancing RNTP signaling by sending to the second node, to mention to the second node For the service condition information, wherein the Information Granularity of the enhancing RNTP signaling is scaled up to frequency domain or time domain.

6. first device according to any one of claim 1 to 5, wherein first acquisition device includes following dress It sets:

First receiving device, for receiving the downlink metrical information from least one second node, described user equipment；

Second determining device, for for each user equipment at least one described user equipment, according to the user equipment Downlink metrical information, determine spectrum efficiency of the user equipment on its available each channeling region.

7. a kind of second device in second node for being scheduled to the user equipment for being attached to the second node, In, which includes following device:

Sending device, for sending the downlink measurement for being attached at least one user equipment of the second node to first node Information, alternatively, each user equipment at least one described user equipment is on its available each channeling region Spectrum efficiency；

8. second device according to claim 7, wherein the cooperation relevant information includes at least one of the following:

The distribution information in channeling region；

Percent information between channeling region based on same frequency；

The service condition information in the channeling region of low-power.

9. second device according to claim 8, wherein the cooperation relevant information includes the distribution information, described Second reception device includes following device:

Sub- reception device includes the performance indicator information for distributing information for receiving, wherein the ratio in performance indicator information Special position relative user equipment, and the value mark on bit distributes to the channeling region of the user equipment of the bit；

Wherein, the dispatching device includes following device:

Conversion equipment, for the performance indicator information to be converted to binary message；

Second acquisition device, for obtaining the distribution information according to the binary message after conversion；

Sub- dispatching device, for being scheduled at least one described user equipment according to the distribution information.

10. it is a kind of in first node for second node provide cooperation relevant information method, wherein this method include with Lower step:

A. for each user equipment at least one user equipment, it is multiple in its available each frequency to obtain the user equipment With the spectrum efficiency on region, wherein at least one described user equipment is attached on the second node；

B. according to the spectrum efficiency of at least one user equipment, the cooperation relevant information for being used for the second node is determined, The cooperation relevant information can be by the second node for dispatching at least one described user equipment；

C. the cooperation relevant information is provided to the second node.

11. according to the method described in claim 10, wherein, the cooperation relevant information includes at least one of the following:

The distribution information in channeling region；

Percent information between channeling region based on same frequency；

The service condition information in the channeling region of low-power.

12. method described in 0 or 11 according to claim 1, wherein the step a the following steps are included:

A1. the downlink metrical information from least one second node, described user equipment is received；

A2. for each user equipment at least one described user equipment, according to the downlink metrical information of the user equipment, Determine spectrum efficiency of the user equipment on its available each channeling region.

13. a kind of method in second node for being scheduled to the user equipment for being attached to the second node, wherein Method includes the following steps:

A. the downlink metrical information for being attached at least one user equipment of the second node is sent to first node, alternatively, Spectrum efficiency of each user equipment on its available each channeling region at least one described user equipment；

14. according to the method for claim 13, wherein the cooperation relevant information includes at least one of the following:

The distribution information in channeling region；

Percent information between channeling region based on same frequency；

The service condition information in the channeling region of low-power.

15. any in a kind of system, including first device described in any one of claims 1 to 6 and claim 7 to 9 Second device described in.