CN104519583A

CN104519583A - Method, device and system for performing data transmission and processing through double connection

Info

Publication number: CN104519583A
Application number: CN201310451367.0A
Authority: CN
Inventors: 邓云; 钱德瑞卡·沃拉尔; 温萍萍
Original assignee: Alcatel Lucent Shanghai Bell Co Ltd; Alcatel Optical Networks Israel Ltd
Current assignee: Nokia Shanghai Bell Co Ltd; Alcatel Optical Networks Israel Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2015-04-15
Anticipated expiration: 2033-09-27
Also published as: CN104519583B; TW201534163A; WO2015044771A3; WO2015044771A2

Abstract

The invention aims at providing a method, device and system for performing data transmission and processing through double connection. The method disclosed by the invention comprises the following steps: acquiring capacity related information of UE (user equipment); acquiring distribution related information; determining available distribution information corresponding to a macro base station and capacity distribution information corresponding to a small base station according to the capacity related information of the UE and the distribution related information; configuring the connection between the macro base station and the UE based on the available distribution information so as to perform data transmission between the macro base station and the UE, and sending the capacity distribution information to the small base station. The method, device and the system disclosed by the invention have the advantages that respectively appropriable processing capacity threshold values of the UE are set for the macro base station and the small base station according to the capacity related information of the UE, so that the data transmission on the double connection between the UE and the macro base station and the small base station cannot exceed the processing capacity of the UE.

Description

A kind of methods, devices and systems being carried out transfer of data and process by dual link

Technical field

The present invention relates to communication technical field, particularly relate to and a kind ofly fetched the methods, devices and systems carrying out transfer of data and process by doubly-linked.

Background technology

In the prior art, as configuration and scheduling user's set (UE, User Equipment) time, the UMTS Terrestrial radio access network (E-UTRAN, Evolved Universal TerrestrialRadio Access Network) of evolution needs to observe UE wireless access capability parameter (Radio Accessparameters).

UE wireless access parameters comprises UE type and does not rely on the parameter information of UE type, comprise the supported PDCP (PDCP of UE, Packet Data ConvergenceProtocol)) parameter, UE support wireless spread-spectrum technology (RLC, Radio Link Control) parameter, UE support physical layer parameter, radio frequency (RF, RadioFrequency) parameter that UE supports etc.When UE first time access network, network should obtain the wireless access capability of this UE.Such as, network should know UE type, to distribute corresponding Radio Resource to this UE.Wherein, the type information of UE can obtain based on current standard definition.Preferably, current defined UE comprises 8 types as shown in table 1:

Table 1

Wherein, table 1 is only citing, and those skilled in the art should understand, the type information of UE is not limited to this several types information listed by table, such as, UE can also be comprised in a TTI, the maximum quantity etc. of the transmission block bit that uplink shared channel sends.

Current, dual link (dual connectivity) is introduced in the research project of small-cell enhancing, to improve spectrum efficiency and to improve mobility.

With reference to Fig. 1.Fig. 1 illustrates the system diagram of current a kind of macro base station (administration Macro Cell, also known as MeNB) and the dual link between small base station (administration Small Cell, also known as SeNB) and UE.

Wherein, between macro base station and small base station, desirable backhaul is not had.Due to serious delay (usual one-way latency is 2 milliseconds to 60 milliseconds), thus centralized scheduling cannot be applied in this kind of system.And currently can be applied to distributed scheduling in dual link system and need to be performed by independently MAC.

In this case, even if the disposal ability of UE is all observed in the connection on every limit, macro base station and small base station all can not guarantee that two total resources be connected distribute the disposal ability can deferring to UE.Therefore how the total resources connected when both sides process when distributing the disposal ability beyond UE, are the current problems needing to solve.

Summary of the invention

The object of this invention is to provide and a kind ofly fetched the methods, devices and systems carrying out transfer of data and process by doubly-linked.

According to an aspect of the present invention, there is provided a kind of in macro base station by the method for dual link with the transmission data of subscriber equipment (UE), wherein, described UE can while be connected with described macro base station and a small base station, wherein, said method comprising the steps of:

A obtains the ability relevant information of described UE;

Wherein, described method is further comprising the steps of:

B obtains and distributes relevant information, and wherein, described distribution relevant information is for determining the disposal ability of the UE distributing to described macro base station and described small base station;

C is according to the ability relevant information of described UE, and described distribution relevant information, determines the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station; Wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take, and described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take;

D can configure connecting between described macro base station and described UE by assignment information based on described, to carry out transfer of data between described macro base station and described UE, and described capability distribution information is sent to described small base station.

According to an aspect of the present invention, provide a kind of in small base station the method by the transmission data of dual link and subscriber equipment (UE), wherein, described UE connects with described macro base station, wherein, said method comprising the steps of:

A receives the capability distribution information from described macro base station, and wherein, described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take;

B based on the connection of described capability distribution information configuration and described UE, to carry out transfer of data between described small base station and described UE.

According to an aspect of the present invention, provide a kind of in macro base station the method by the transmission data of dual link and subscriber equipment (UE), wherein, said method comprising the steps of:

A' obtains the ability relevant information of described UE;

Wherein, described method is further comprising the steps of:

B' sends for configuring the request with the connection of described UE to described small base station;

C' receives the assignment request information fed back based on described request from small base station;

D' determines the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information, and wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take;

E' can configure connecting between described macro base station and described UE by assignment information, to carry out transfer of data between described macro base station and described UE based on described.

According to an aspect of the present invention, there is provided a kind of in small base station by the method for dual link with the transmission data of subscriber equipment (UE), wherein, described UE can while be connected with described macro base station and a small base station, wherein, said method comprising the steps of:

A' obtains self base station state information; Wherein, described base station state information is used to indicate the information processing state of described small base station;

B', according to described base station state information, determines the assignment request information corresponding with described UE;

Described assignment request information is sent to described macro base station by C', with the connection based on described assignment request information configuration and described UE, and carries out the transfer of data between described small base station and described UE.

According to an aspect of the present invention, also provide a kind of in subscriber equipment (UE) to the dual link of this UE in the method that processes of corresponding data, wherein, described UE can be connected with described macro base station and a small base station simultaneously, wherein, said method comprising the steps of:

-according to the ability relevant information of described UE, judge whether the pending data corresponding with described dual link exceed the disposal ability of described UE;

-when the pending data corresponding with described dual link exceed the disposal ability of described UE, perform and select process operation, with the data message of priority treatment from described macro base station.

According to an aspect of the present invention, also provide a kind of macro base station, wherein, this macro base station is by the transmission data of dual link and subscriber equipment (UE), and described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described macro base station comprises:

First acquisition device, for obtaining the ability relevant information of described UE;

Second acquisition device, for obtaining distribution relevant information, wherein, described distribution relevant information is for determining the disposal ability of the UE distributing to described macro base station and described small base station;

First determining device, for the ability relevant information according to described UE, and described distribution relevant information, determine the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station; Wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take, and described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take;

First inking device, for configuring connecting between described macro base station and described UE by assignment information based on described, to carry out transfer of data between described macro base station and described UE, and is sent to described small base station by described capability distribution information.

According to an aspect of the present invention, also provide a kind of small base station, wherein, small base station is by the transmission data of dual link and subscriber equipment (UE), and described UE connects with described macro base station, and wherein, described small base station comprises:

First receiving device, for receiving the capability distribution information from described macro base station, wherein, described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take;

Second inking device, for the connection based on described capability distribution information configuration and described UE, to carry out transfer of data between described small base station and described UE.

According to an aspect of the present invention, also provide a kind of macro base station, wherein, this macro base station is by the transmission data of dual link and subscriber equipment (UE), and wherein, described macro base station comprises:

3rd acquisition device, for obtaining the ability relevant information of described UE;

First dispensing device, for sending for configuring the request with the connection of described UE to described small base station;

Second receiving system, for receiving the assignment request information fed back based on described request from small base station;

Second determining device, for determining the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information, wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take;

3rd inking device, for configuring connecting between described macro base station and described UE by assignment information, to carry out transfer of data between described macro base station and described UE based on described.

According to an aspect of the present invention, also provide a kind of small base station, this small base station is by the transmission data of dual link and subscriber equipment (UE), wherein, described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described small base station comprises:

4th acquisition device, for obtaining the base station state information of self; Wherein, described base station state information is used to indicate the information processing state of described small base station;

3rd determining device, for according to described base station state information, determines the assignment request information corresponding with described UE;

3rd dispensing device, for described assignment request information is sent to described macro base station, with the connection based on described assignment request information configuration and described UE, and carries out the transfer of data between described small base station and described UE.

According to an aspect of the present invention, also provide a kind of subscriber equipment (UE), wherein, described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described UE comprises:

Judgment means, for the ability relevant information according to described UE, judges whether the pending data corresponding with described dual link exceed the disposal ability of described UE;

Final controlling element, for when the pending data corresponding with described dual link exceed the disposal ability of described UE, performs and selects process operation, with the data message of priority treatment from described macro base station.

According to an aspect of the present invention, also provide a kind of communication system, wherein, described communication system comprises described macro base station and described small base station; Wherein, described third communication system also comprises described UE.

Compared with prior art, the present invention has the following advantages: according to the solution of the present invention, by the ability relevant information according to UE, for macro base station and small base station arrange the disposal ability threshold value of the UE that it can take separately, thus can make the transfer of data in UE and the dual link between macro base station and small base station can not more than the disposal ability of UE, can under the prerequisite making full use of UE disposal ability, it is abnormal to reduce makeing mistakes of causing because transfer of data exceeds UE disposal ability etc. to greatest extent; In addition, according to the solution of the present invention, also can when the pending data of UE exceed its own processing capabilities, the pending information preferentially for macro base station is processed, thus farthest alleviates the impact made mistakes caused because disposal ability is not enough.

Accompanying drawing explanation

By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:

Fig. 1 illustrates the system diagram of a kind of macro base station and the dual link between small base station and UE;

Fig. 2 illustrates the method flow diagram being transmitted data by dual link and subscriber equipment (UE) according to an embodiment of the invention;

Fig. 3 is the method flow diagram being transmitted data by dual link and subscriber equipment (UE) illustrated according to still another embodiment of the invention;

Fig. 4 illustrates the structural representation of macro base station according to an embodiment of the invention and small base station;

Fig. 5 illustrates the structural representation of macro base station according to still another embodiment of the invention and small base station;

Fig. 6 illustrates the structural representation of UE according to an aspect of the present invention.

In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

With reference to Fig. 1, communication system according to the present invention comprises macro base station, at least one small base station corresponding with this macro base station, and at least one subscriber equipment, wherein, this subscriber equipment can be connected with a macro base station and a small base station simultaneously, that is, this subscriber equipment and there is dual link between macro base station and a small base station.

Wherein, the base station adopting the technology such as femtocell (Femtocell), Pico cell (Picocell), microcellulor (Microcell) to realize is included but not limited to according to small base station of the present invention.

With reference to Fig. 2.Fig. 2 illustrates the method flow diagram being transmitted data by dual link and UE according to an embodiment of the invention.Method according to Fig. 2 comprises the step S11, step S12, step S13 and the step S14 that are performed by macro base station, and the step S21 performed by small base station and step S22.

In step s 11, macro base station obtains the ability relevant information of UE.Wherein, described ability relevant information is used to indicate the ability of the accessible resource of this UE.

Preferably, described ability relevant information includes but not limited to UE type information, and independent of other parameter informations of UE type information.More preferably, described ability relevant information comprises following information:

1) UE is in the spatial cache information of layer two (Layer2);

2) type information of UE.Preferably, current defined UE type information is as described in aforementioned table 1.

More preferably, described ability relevant information also comprises the supported channel information of UE, and such as, whether UE can support to MeNB and SeNB transmission information etc. on PUCCH simultaneously.

Then, in step s 12, macro base station obtains and distributes relevant information.

Wherein, described distribution relevant information is for determining the disposal ability of the UE distributing to described macro base station and described small base station.

Preferably, described distribution relevant information comprises described distribution relevant information and comprises following at least any one;

1) backhaul information (backhaul) between described small base station and described macro base station is as transmitting state information, transmission delay information etc.;

2) the first transmission information of the transmission situation of this small base station is used to indicate; Preferably, described first transmission information comprises but is not limited to following at least any one:

I) quantity of the Data Radio Bearer (DRB, Data RadioBearer) of this small base station is offloaded to;

Ii) quality of service information (QoS, Quality of Service) of the DRB of this small base station is offloaded to;

Iii) channel condition information of this small base station, the i.e. channel condition information of described user equipment (UE) residing for this small base station;

V) load information of this small base station;

3) the second transmission information of the transmission situation of this macro base station is used to indicate; Preferably, described second transmission information comprises but is not limited to following at least any one:

I) total DRB quantity, i.e. total DRB quantity of setting up of this UE;

Ii) quality of service information of the DRB of corresponding small base station is not offloaded to;

Iii) channel condition information of this macro base station, the i.e. channel condition information of described UE residing for this macro base station;

V) load information of this macro base station.

Preferably, one or more items of information of comprising of described first transmission information are corresponding with the one or more items of information comprised in the second transmission information respectively.

Wherein, macro base station is by part first transmission information obtaining small base station alternately with small base station, macro base station is by part first transmission information obtaining small base station alternately with subscriber equipment, and macro base station can obtain part first transmission information of small base station by core net.Those skilled in the art according to actual conditions and should need the mode determining the first transmission information obtaining small base station, do not repeat them here.

Then, in step s 13, macro base station is according to the ability relevant information of described UE, and described distribution relevant information, determines the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station.

Wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take, and described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take.

Preferably, described available assignment information comprise macro base station can the capacity threshold information of disposal ability of UE; More preferably, described capability distribution information comprises the capacity threshold information of the disposal ability of the UE shared by described small base station, and the ability relevant information of described UE.

Particularly, macro base station compares the first transmission information and the second transmission information that distribute in relevant information and comprise, and/or, according to distribute comprise in relevant information, small base station to the backhaul information of this macro base station, determine the available assignment information of self; And according to self available assignment information, in conjunction with the ability relevant information of this UE, determine the capability distribution information of corresponding small base station.

Such as, macro base station is according to the backhaul information of small base station to self, be unloaded to the DRB sum that the DRB quantity of small base station and UE set up, determine that the available assignment information of self is included in a TTI, through the available transmission block bit number bit_no1 that DL-SCH is received by UE, and, macro base station is according to the maximum quantity bit_max of DL-SCH transmission block bit received in a TTI corresponding to this UE, determine the capability distribution information of small base station, that is the available transmission block bit number bit_no2 that small base station is received by UE through DL-SCH, wherein, bit_no2=bit_max-bit_no1.

Wherein, those skilled in the art should according to actual conditions and needs, determine according to distribute relevant information determine macro base station can the method for salary distribution of available assignment information of UE disposal ability, do not repeat them here.

Then, in step S14, macro base station can configure connecting between self and described UE by assignment information based on described, to carry out transfer of data between described macro base station and described UE, and described capability distribution information is sent to described small base station.

Particularly, macro base station can configure connecting between self and described UE by assignment information based on described, meets described available assignment information during to carry out transfer of data between described macro base station and described UE.

Preferably, described capability distribution information can be contained in dual link foundation request.

Such as, when step S12 to step S14 configure for UE be performed in the process of dual link time, the capability distribution information in described step S14 can be contained in and be used to indicate in request that small base station and this UE connect.

Preferably, described capability distribution information can be sent to small base station individually.Such as, by defining the new signaling comprising this capability distribution information, this information is sent in small base station by macro base station.

Then, in the step s 21, small base station receives the capability distribution information from described macro base station.

Corresponding to abovementioned steps S14, this small base station sets up request by dual link, such as, is used to indicate in the solicited message that itself and UE connect, obtains this capability distribution information.

Or, can by obtaining this capability distribution information in special signaling.

Then, in step S22, small base station configures the connection with described UE based on described capability distribution information, to carry out transfer of data between described small base station and described UE.

Particularly, small base station is configured the connection between self and UE based on described capability distribution information, to make to meet described capability distribution information by the transfer of data performed by this connection.

According to the first example of the present invention, UE belongs to type 5, known according to table 1, and the maximum quantity of the DL-SCH transmission block bit that it receives in a TTI is 299552, and soft channel bit adds up to 3667200; Then macro base station in step s 13, determine that the available pipe assignment information of self comprises available soft channel bit number 1000000, and the quantity available 100000 of the DL-SCH transmission block bit received in a TTI, and determine the capability distribution information of small base station comprise this small base station can soft channel bit number be 3667200-1000000=2667200, and the quantity available 299552-100000=199552 of the DL-SCH transmission block bit received in a TTI.And, macro base station is in step S14, available assignment information based on self is configured the connection between self and UE, to make this UE be less than or equal to 1000000 by the soft channel bit number transmitted with the connection of this macro base station, the quantity available of the DL-SCH transmission block bit received in a TTI is less than or equal to 100000; Further, this capability distribution information is sent to small base station by macro base station in step S14.Then small base station according to obtained can with capability distribution information configure and the connecting of UE, to make when transmitting data to UE, this UE is less than or equal to 2667200 by the soft channel bit number transmitted with the connection of this small base station, and the quantity available of the DL-SCH transmission block bit received in a TTI is less than or equal to 199552.

Wherein, in conjunction with the content that the present invention introduces, the mode that those skilled in the art should determine based on being configured connecting between base station and UE by assignment information/capability distribution information according to actual conditions and demand, such as, based on the spatial cache of the UE that the small base station comprised in capability distribution information can take, those skilled in the art should understand by configuration accordingly as arranged sequence length, the time interval etc. of confirmation is set, carry out the spatial cache etc. shared by control data bag, the space of this small base station is distributed to make the spatial cache of the UE used shared by the transfer of data of the connection between small base station and UE be no more than.

More preferably, when the technology that communication system according to the present invention adopts is different, need the parameter information of configuration also different.Such as, in the communication system adopting multiple-input and multiple-output (Multiple InputMultiple Output) technology, also need according to the supported number of plies information of UE, configure the number of plies information etc. connecting corresponding MIMO.Those skilled in the art should know according to actual conditions the parameter information needing configuration.The maximum number of plies that such as UE supports is 4, then configurable small base station uses 2 layers, and macro base station uses other 2 layers.

It should be noted that, process in accordance with the present invention S11 is to step S14, and step S21 and step S22, can perform in the process of the dual link set up for UE and between macro base station and small base station, meet the available capability information of macro base station and the distribution capability information of small base station respectively to make UE and the connection between macro base station and small base station; Or, also under UE and the already present situation of the dual link between macro base station and small base station, the execution of abovementioned steps can be triggered when distributing relevant information and changing, to upgrade the configuration information of UE and the connection between macro base station and small base station.

Fig. 3 is the method flow diagram being transmitted data by dual link and subscriber equipment (UE) illustrated according to still another embodiment of the invention.The step S11' performed by macro base station is comprised, step S12', step S13', step S14' and step S15' according to the method for the present embodiment, and the step S21', step S22' and the step S23' that are performed by small base station.

In step S11', macro base station obtains the ability relevant information of UE.Wherein, the ability relevant information that the macro base station acquisition mode of ability relevant information of UE and the macro base station described in abovementioned steps S11 obtain UE is same or similar, repeats no more herein.

Then, in step S12', macro base station sends for configuring the request be connected with described UE to described small base station.

Preferably, described for configure the request be connected with described UE include but not limited to following any one:

1) dual link for setting up the connection between small base station and UE sets up request;

2) for upgrading the reconfiguration request of the connection configuration between small base station and UE.

Wherein, when described small base station not yet connects with UE, described macro base station sends to it request of foundation, connects to make described small base station and UE; When described small base station with existed between UE be connected time, macro base station can to this small base station send reconfiguration request, to upgrade the configuration of this connection.

Then, in step S13', macro base station receives the assignment request information fed back based on described request from small base station.

Wherein, described assignment request information is that small base station distributes available UE disposal ability for asking macro base station.

Then, in step S14', macro base station determines the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information.

Wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take.

Such as, for the UE of type 6 correspondence, it is 100000 that assignment request information comprises request dispatching is included in the DL-SCH transmission block bit received in TTI quantity available to the capability distribution information of small base station, known according to table 1, the maximum quantity of the DL-SCH transmission block bit that the UE of type 6 receives in a TTI is 301504, then macro base station determines that the quantity available that the available assignment information of self is included in the DL-SCH transmission block bit received in a TTI is 301504-100000=201504.

Then, in step S15', macro base station can configure connecting between described macro base station and described UE by assignment information, to carry out transfer of data between described macro base station and described UE based on described.

Wherein, macro base station can configure connecting between described macro base station and described UE by assignment information based on described, connecting between described macro base station and described UE can be configured by assignment information based on described to carry out macro base station in the mode of transfer of data and abovementioned steps S14 between described macro base station and described UE, same or similar in the mode of carrying out transfer of data between described macro base station and described UE, repeat no more.

Then, in step S21', the base station state information of small base station acquisition self.

Wherein, described base station state information is used to indicate the information processing state of described small base station.Preferably, described base station state information includes but not limited to following at least any one:

1) channel condition information of small base station, the channel condition information that namely UE is residing in small base station;

2) load information of small base station;

3) transmitting state information of the DRB of this small base station is offloaded to;

4) the backhaul state between this small base station and macro base station.

Wherein, according to actual conditions and demand, those skilled in the art should determine that small base station obtains the mode of self base station state information, do not repeat them here.

Then, in step S22', small base station, according to described base station state information, determines the assignment request information corresponding with described UE.

Then, in step S23', described assignment request information is sent to described macro base station by small base station, and configures the connection with described UE according to described assignment request information, with performing data transmission between described small base station and described UE.

Wherein, small base station based on the configuration of described assignment request information and the mode of the connection of described UE include but not limited to following any one:

1) small base station is directly according to the disposal ability information of the UE comprised in this assignment request information, configures the connection between self and this UE, with the disposal ability making the transfer of data via this connection not exceed the UE defined in assignment request information;

2) this assignment request information is sent to macro base station by small base station, for macro base station determination capability distribution information, and based on the capability distribution information that macro base station feeds back, configure the connection between self and this UE, to make the disposal ability of the UE of transfer of data not defined in override capability assignment information via this connection.Which will be described in detail in follow-up excellent scheme, repeat no more herein.

According to a preferred version of the present embodiment, wherein, also comprise according to the method for this programme the step S16'(figure performed by macro base station and do not show), the step S15' performed by macro base station comprises step S151'(figure further and does not show); The step S23' performed by small base station comprise further step S231'(figure do not show), step S232'(figure do not show) and step S233'(scheme do not show).

In step S231', described assignment request information is sent to described macro base station by small base station.

Then, in step S151', macro base station determines the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information, and the capability distribution information corresponding with described small base station.

Particularly, macro base station according to macro base station according to assignment request information and described ability relevant information, determine self available first disposal ability corresponding with this assignment request information, and the second disposal ability of the small base station corresponding with this assignment request information, and combination determines the initial available assignment information corresponding with described macro base station self according to described ability relevant information, and the initial ability assignment information corresponding with described small base station, finally determine the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station.

Preferably, macro base station is regular based on predetermined process, according to the first disposal ability and the available assignment information initially can determining macro base station self correspondence by assignment information; Similarly, macro base station, based on predetermined process rule, determines the capability distribution information of small base station self correspondence according to the second disposal ability and initial ability assignment information.

Such as, macro base station, by described first disposal ability and initial available assignment information, selects a larger available assignment information as macro base station self correspondence; Again such as, macro base station is using one less in the second disposal ability and initial ability assignment information capability distribution information etc. as small base station.

Then, in step S16', macro base station sends described capability distribution information to described small base station.

Then, in step S232', small base station receives the capability distribution information of the described UE that described macro base station feeds back based on described assignment request information.

Then, in step S233', small base station configures the connection with described UE based on described capability distribution information, to carry out transfer of data between described small base station and described UE.

Wherein, the operation of step S233' and the middle-size and small-size base station of abovementioned steps S22 configure the connection with described UE based on described capability distribution information, same or similar in the mode of carrying out transfer of data between described small base station and described UE, repeat no more.

According to method of the present invention, by the ability relevant information according to UE, for macro base station and small base station arrange the disposal ability threshold value of the UE that it can take separately, thus can make the transfer of data in UE and the dual link between macro base station and small base station can not more than the disposal ability of UE, can under the prerequisite making full use of UE disposal ability, it is abnormal to reduce makeing mistakes of causing because transfer of data exceeds UE disposal ability etc. to greatest extent.

It should be noted that, process in accordance with the present invention S11' is to step S15', and step S21' is to step S23', both can perform in the process of the dual link set up for UE and between macro base station and small base station, meet the available capability information of macro base station and the distribution capability information of small base station respectively to make UE and the connection between macro base station and small base station; Or, also under UE and the already present situation of the dual link between macro base station and small base station, abovementioned steps can be triggered when distributing relevant information and changing and performs, to upgrade the configuration information of UE and the connection between macro base station and small base station.

Fig. 4 illustrate according to still another embodiment of the invention in UE to the method flow diagram that the data corresponding to dual link process.The step S31 and step S32 that are performed by UE is comprised according to the method for the present embodiment.

In step S31, UE, according to the ability relevant information of self, judges whether the pending data corresponding with described dual link exceed the disposal ability of described UE.

Wherein, described ability relevant information is described in detail in the embodiment shown in aforementioned reference Fig. 2, does not repeat them here.

Particularly, UE, according to the received packet from the dual link between macro base station or small base station, compares with the ability relevant information of self, to judge whether received packet exceeds the maximum processing capability of self.

Such as, in the downlink, UE is according to be connected from macro base station and small base station two respectively, the summation of the transmission block bit number from DL-SCH received in a TTI, with corresponding to self type information, the maximum quantity of DL-SCH transmission block bit that receives in a TTI compares, when the transmission block bit number connected from two is greater than maximum quantity corresponding to type information, judge the disposal ability of pending data corresponding to current and described dual link beyond self.

Again such as, UE according to from two connect, need the size of data sum being buffered in layer two (Layer2), compared with the current spatial cache of self, when judging to need the data of buffer memory to be greater than current spatial cache, judge the disposal ability of pending data corresponding to current and described dual link beyond self.

Then, in step s 32, when the pending data corresponding with described dual link exceed the disposal ability of described UE, perform and select process operation, with the pending data of priority treatment from described macro base station.

Wherein, process operation is selected to include but not limited to any one mode following:

1) priority treatment is from the pending data of macro base station;

2) stop receiving the information from small base station;

3) the part or all of information corresponding with described small base station is deleted;

4) according to the service priority of pending data, the data of low priority are deleted.Such as, according to the priority of each DRB, delete the data corresponding to DRB that priority is lower, to discharge its buffer memory.

Preferably, described ability relevant information comprises the supported channel information of UE.

Such as, when UE can not send information to MeNB and SeNB on PUCCH simultaneously, then now UE preferentially sends information to MeNB on PUCCH.

Preferably, those skilled in the art also can according to actual conditions and demand, determine the specific implementation selecting process operation, thus when pending data exceed its own processing capabilities, pending information preferentially for macro base station is processed, thus farthest alleviates the impact made mistakes caused because disposal ability is not enough.

With reference to Fig. 5.Fig. 5 illustrates the structural representation of macro base station according to an embodiment of the invention and small base station.Macro base station according to Fig. 5 comprises the first acquisition device 11, second acquisition device 12, first determining device 13 and the first inking device 14, and described small base station comprises first receiving device 21 and the second inking device 22.

First acquisition device 11 obtains the ability relevant information of UE.Wherein, described ability relevant information is used to indicate the ability of the accessible resource of this UE.

1) UE is in the spatial cache information of layer two (Layer2);

Then, the second acquisition device 12 obtains and distributes relevant information.

V) load information of this small base station;

I) total DRB quantity, i.e. total DRB quantity of setting up of this UE;

V) load information of this macro base station.

Wherein, the second acquisition device 12 in macro base station by with small base station, with UE, with first transmission information obtaining small base station alternately of core net.Those skilled in the art according to actual conditions and should need the mode determining the first transmission information obtaining small base station, do not repeat them here.

Then, the first determining device 13 is according to the ability relevant information of described UE, and described distribution relevant information, determines the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station.

Particularly, the first determining device 13 compares the first transmission information and the second transmission information that distribute in relevant information and comprise, and/or, according to distribute comprise in relevant information, small base station to the backhaul information of this macro base station, determine the available assignment information of self; And according to self available assignment information, in conjunction with the ability relevant information of this UE, determine the capability distribution information of corresponding small base station.

Such as, first determining device 13 is according to the backhaul information of small base station to macro base station belonging to self, be unloaded to the DRB sum that the DRB quantity of small base station and UE set up, determine that the available assignment information of self is included in a TTI, through the available transmission block bit number bit_no1 that DL-SCH is received by UE, and, first determining device 13 is according to the maximum quantity bit_max of DL-SCH transmission block bit received in a TTI corresponding to this UE, determine the capability distribution information of small base station, that is the available transmission block bit number bit_no2 that small base station is received by UE through DL-SCH, wherein, bit_no2=bit_max-bit_no1.

Then, the first inking device 14 can configure macro base station belonging to self and connecting between described UE by assignment information based on described, to carry out transfer of data between this macro base station and described UE, and described capability distribution information is sent to described small base station.

Particularly, the first inking device 14 can configure macro base station belonging to self and connecting between described UE by assignment information based on described, meets described available assignment information during to carry out transfer of data between macro base station and described UE.

Such as, when the second acquisition device 12, first determining device 13, first inking device 14 is performed in the process setting up dual link for UE, capability distribution packets of information can be contained in and be used to indicate in request that small base station and this UE connect by the first inking device 14, and this request is sent to small base station.

Then, first receiving device 21 receives the capability distribution information from described macro base station.

Corresponding to the operation of the first inking device 14, this first receiving device 21 sets up demand signalling by receiving dual link, such as, is used to indicate the solicited message that itself and UE connect, and therefrom obtains this capability distribution information.

Then, the second inking device 22 configures the connection with described UE based on described capability distribution information, to carry out transfer of data between described small base station and described UE.

Particularly, the second inking device 22 is configured the connection between self and UE based on described capability distribution information, to make to meet described capability distribution information by the transfer of data performed by this connection.

According to the first example of the present invention, UE belongs to type 5, known according to table 1, and the maximum quantity of the DL-SCH transmission block bit that it receives in a TTI is 299552, and soft channel bit adds up to 3667200; Then the first determining device 13 of macro base station determines that the available pipe assignment information of self comprises available soft channel bit number 1000000, and the quantity available 100000 of the DL-SCH transmission block bit received in a TTI, and determine the capability distribution information of small base station comprise this small base station can soft channel bit number be 3667200-1000000=2667200, and the quantity available 299552-100000=199552 of the DL-SCH transmission block bit received in a TTI.And, first inking device 14 of macro base station is configured the connection between self and UE based on the available assignment information of self, to make this UE be less than or equal to 1000000 by the soft channel bit number transmitted with the connection of this macro base station, the quantity available of the DL-SCH transmission block bit received in a TTI is less than or equal to 100000; Further, this capability distribution information is sent to small base station by the first inking device 14.The second inking device 22 then in small base station according to obtained can with capability distribution information configure and the connecting of UE, to make when transmitting data to UE, this UE is less than or equal to 2667200 by the soft channel bit number transmitted with the connection of this small base station, and the quantity available of the DL-SCH transmission block bit received in a TTI is less than or equal to 199552.

It should be noted that, according to the first acquisition device 11, second acquisition device 12, first determining device 13, first inking device 14 of macro base station of the present invention, and first receiving device 21 in small base station and the second inking device 22, both can perform in the process of the dual link set up for UE and between macro base station and small base station, meet the available capability information of macro base station and the distribution capability information of small base station respectively to make UE and the connection between macro base station and small base station; Or, also under UE and the already present situation of the dual link between macro base station and small base station, aforementioned means executable operations can be triggered, to upgrade the configuration information of UE and the connection between macro base station and small base station when distributing relevant information and changing.

Fig. 6 is the structural representation illustrating macro base station according to still another embodiment of the invention and small base station.The 3rd acquisition device 11' is comprised according to the macro base station of the present embodiment, first dispensing device 12', second receiving system 13', second determining device 14' and the 3rd inking device 15', the 4th acquisition device 21' is comprised, the 3rd determining device 22' and the 3rd dispensing device 23' according to the small base station of the present embodiment.

3rd acquisition device 11' obtains the ability relevant information of UE.Wherein, the ability relevant information that the mode of the ability relevant information of the 3rd acquisition device 11' acquisition UE and aforementioned first acquisition device 11 obtain UE is same or similar, repeats no more herein.

Then, the first dispensing device 12' sends for configuring the request be connected with described UE to described small base station.

1) for setting up the connection establishment request of the dual link between small base station and UE;

Wherein, when described small base station not yet connects with UE, described first dispensing device 12' sends to it request of foundation, connects to make described small base station and UE; When described small base station with existed between UE be connected time, the first dispensing device 12' can to this small base station send reconfiguration request, to upgrade the configuration of this connection.

Then, the second receiving system 13' receives the assignment request information fed back based on described request from small base station.

Then, the second determining device 14' determines the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information.

Such as, for the UE of type 6 correspondence, it is 100000 that assignment request information comprises request dispatching is included in the DL-SCH transmission block bit received in TTI quantity available to the capability distribution information of small base station, known according to table 1, the maximum quantity of the DL-SCH transmission block bit that the UE of type 6 receives in a TTI is 301504, then the second determining device 14' determines that the quantity available that the available assignment information of self is included in the DL-SCH transmission block bit received in a TTI is 301504-100000=201504.

Then, the 3rd inking device 15' can configure connecting between described macro base station and described UE by assignment information, to carry out transfer of data between described macro base station and described UE based on described.

Wherein, 3rd inking device 15' can configure connecting between described macro base station and described UE by assignment information based on described, connecting between described macro base station and described UE can be configured by assignment information based on described with the mode and aforementioned first inking device 14 of carrying out transfer of data between described macro base station and described UE, same or similar in the mode of carrying out transfer of data between described macro base station and described UE, repeat no more.

Then, the 4th acquisition device 21' obtains the base station state information of self.

2) load information of small base station;

4) the backhaul state between this small base station and macro base station.

Then, the 3rd determining device 22', according to described base station state information, determines the assignment request information corresponding with described UE.

Then, described assignment request information is sent to described macro base station by the 3rd dispensing device 23', and configures the connection with described UE according to described assignment request information, with performing data transmission between described small base station and described UE.

Wherein, the 3rd dispensing device 23' based on the configuration of described assignment request information and the mode of the connection of described UE include but not limited to following any one:

1) the 3rd dispensing device 23' is directly according to the disposal ability information of the UE comprised in this assignment request information, configure the connection between self and this UE, with the disposal ability making the transfer of data via this connection not exceed the UE defined in assignment request information;

2) this assignment request information is sent to macro base station by the 3rd dispensing device 23', for macro base station determination capability distribution information, and based on the capability distribution information that macro base station feeds back, configure the connection between self and this UE, to make the disposal ability of the UE of transfer of data not defined in override capability assignment information via this connection.Which will be described in detail in follow-up excellent scheme, repeat no more herein.

According to a preferred version of the present embodiment, wherein, also comprise the second dispensing device (not shown) according to the macro base station of this programme, comprise the 4th dispensing device (not shown), the 3rd receiving system (not shown) and the 4th inking device (not shown) further according to the 3rd dispensing device 23' of the small base station of this programme.

Described assignment request information is sent to described macro base station by the 4th dispensing device in small base station.

Then, the second determining device 14' of this macro base station determines the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information, and the capability distribution information corresponding with described small base station.

Particularly, second determining device 14' according to macro base station according to assignment request information and described ability relevant information, determine self available first disposal ability corresponding with this assignment request information, and the second disposal ability of the small base station corresponding with this assignment request information, and combination determines the initial available assignment information corresponding with described macro base station self according to described ability relevant information, and the initial ability assignment information corresponding with described small base station, finally determine the available assignment information corresponding with described macro base station self, and the capability distribution information corresponding with described small base station.

Preferably, the second determining device 14' is regular based on predetermined process, according to the first disposal ability and the available assignment information initially can determining macro base station self correspondence by assignment information; Similarly, the second determining device 14', based on predetermined process rule, determines the capability distribution information of small base station self correspondence according to the second disposal ability and initial ability assignment information.

Such as, the second determining device 14' by described first disposal ability and initial available assignment information, select larger one as available assignment information corresponding to macro base station belonging to self; Again such as, the second determining device 14' is using one less in the second disposal ability and initial ability assignment information capability distribution information etc. as small base station.

Then, the second dispensing device sends described capability distribution information to described small base station.

Then, the 3rd receiving system in small base station receives the capability distribution information of the described UE that described macro base station feeds back based on described assignment request information.

Then, the 4th inking device configures the connection with described UE based on described capability distribution information, to carry out transfer of data between described small base station and described UE.

Wherein, operation and aforementioned second inking device 22 of the 4th inking device configure the connection with described UE based on described capability distribution information, same or similar in the mode of carrying out transfer of data between described small base station and described UE, repeat no more.

According to the solution of the present invention, by the ability relevant information according to UE, for macro base station and small base station arrange the disposal ability threshold value of the UE that it can take separately, thus can make the transfer of data in UE and the dual link between macro base station and small base station can not more than the disposal ability of UE, can under the prerequisite making full use of UE disposal ability, it is abnormal to reduce makeing mistakes of causing because transfer of data exceeds UE disposal ability etc. to greatest extent.

It should be noted that, according to the 3rd acquisition device 11' in macro base station of the present invention, first dispensing device 12', second receiving system 13', second determining device 14' and the 3rd inking device 15', and the 4th acquisition device 21' in small base station, 3rd determining device 22' and the 3rd dispensing device 23' both can perform in the process of the dual link set up for UE and between macro base station and small base station, met the available capability information of macro base station and the distribution capability information of small base station respectively to make UE and the connection between macro base station and small base station; Or, also under UE and the already present situation of the dual link between macro base station and small base station, aforementioned means executable operations can be triggered, to upgrade the configuration information of UE and the connection between macro base station and small base station when distributing relevant information and changing.

Fig. 7 illustrates the structural representation of UE according to still another embodiment of the invention.Judgment means 31 and final controlling element 32 is comprised according to the UE of the present embodiment.

Judgment means 31, according to the ability relevant information of self, judges whether the pending data corresponding with described dual link exceed the disposal ability of described UE.

Particularly, judgment means 31, according to the received packet from the dual link between macro base station or small base station, compares with the ability relevant information of UE belonging to self, to judge whether received packet exceeds the maximum processing capability of self.

Such as, in the downlink, judgment means 31 is according to be connected from macro base station and small base station two respectively, the summation of the transmission block bit number from DL-SCH received in a TTI, the maximum quantity of DL-SCH transmission block bit that is corresponding with the type information of UE belonging to self, that receive in a TTI compares, when the transmission block bit number connected from two is greater than maximum quantity corresponding to type information, judgment means 31 judges the disposal ability of pending data corresponding to current and described dual link beyond self.

Again such as, judgment means 31 according to from two connect, need the size of data sum being buffered in layer two (Layer2), compared with the spatial cache of UE belonging to current self, when needing the data of buffer memory to be greater than current spatial cache, judgment means 31 judges the disposal ability of pending data corresponding to current and described dual link beyond self.

Then, when the pending data corresponding with described dual link exceed the disposal ability of described UE, final controlling element 32 performs selects process operation, with the pending data of priority treatment from described macro base station.

1) priority treatment is from the pending data of macro base station;

2) stop receiving the information from small base station;

3) the part or all of information corresponding with described small base station is deleted.;

Such as, when UE can not send information to MeNB and SeNB on PUCCH simultaneously, and the pending data of dual link between macro base station and small base station are beyond the disposal ability of UE, then now the final controlling element 32 of UE is determined preferentially to support to MeNB transmission information on PUCCH.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in system claims or device also can be realized by software or hardware by a unit or device.First, second word such as grade is used for representing title, and does not represent any specific order.

Claims

1. in macro base station by a method for the transmission data of dual link and subscriber equipment (UE), wherein, described UE can be connected with described macro base station and a small base station simultaneously, wherein, said method comprising the steps of:

A obtains the ability relevant information of described UE;

Wherein, described method is further comprising the steps of:

2. in small base station by a method for the transmission data of dual link and subscriber equipment (UE), wherein, described UE connects with described macro base station, wherein, said method comprising the steps of:

3. in macro base station by a method for the transmission data of dual link and subscriber equipment (UE), wherein, said method comprising the steps of:

A' obtains the ability relevant information of described UE;

Wherein, described method is further comprising the steps of:

4. method according to claim 3, wherein, described steps d ' comprise further:

-determine the available assignment information corresponding with described macro base station self based on described assignment request information and described ability relevant information, and the capability distribution information corresponding with described small base station; Wherein, described available assignment information is used to indicate the disposal ability of the described UE that described macro base station can take, and described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take;

Wherein, described method is further comprising the steps of:

-send described capability distribution information to described small base station.

5. in small base station by a method for the transmission data of dual link and subscriber equipment (UE), wherein, described UE can be connected with described macro base station and a small base station simultaneously, wherein, said method comprising the steps of:

6. method according to claim 5, wherein, described step C' is further comprising the steps of:

-described assignment request information is sent to described macro base station;

-receive the capability distribution information of the described UE that described macro base station feeds back based on described assignment request information;

-based on the connection of described capability distribution information configuration and described UE, to carry out transfer of data between described small base station and described UE; Wherein, described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take.

7. in subscriber equipment (UE) to the dual link of this UE in the method that processes of corresponding data, wherein, described UE can be connected with described macro base station and a small base station simultaneously, wherein, said method comprising the steps of:

8. a macro base station, wherein, this macro base station is by the transmission data of dual link and subscriber equipment (UE), and described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described macro base station comprises:

9. a small base station, wherein, small base station is by the transmission data of dual link and subscriber equipment (UE), and described UE connects with described macro base station, and wherein, described small base station comprises:

10. a macro base station, wherein, this macro base station is by the transmission data of dual link and subscriber equipment (UE), and wherein, described macro base station comprises:

11. macro base stations according to claim 9, wherein, described second determining device also for:

Wherein, described macro base station also comprises:

Second dispensing device, for sending described capability distribution information to described small base station.

12. 1 kinds of small base stations, this small base station is by the transmission data of dual link and subscriber equipment (UE), and wherein, described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described small base station comprises:

3rd dispensing device, for described assignment request information is sent to described macro base station, to configure the connection with described UE based on described assignment request information, and carries out the transfer of data between described small base station and described UE.

13. small base stations according to claim 12, wherein, described 3rd dispensing device comprises further:

4th dispensing device, for being sent to described macro base station by described assignment request information;

3rd receiving system, for receiving the capability distribution information of the described UE that described macro base station feeds back based on described assignment request information;

4th inking device, for configuring the connection with described UE based on described capability distribution information, to carry out transfer of data between described small base station and described UE; Wherein, described capability distribution information is used to indicate the disposal ability of the described UE that described small base station can take.

14. 1 kinds of subscriber equipmenies (UE), wherein, described UE can be connected with described macro base station and a small base station simultaneously, and wherein, described UE comprises:

15. 1 kinds of communication systems, wherein, described communication system comprises macro base station according to claim 8 and small base station according to claim 9, and/or, the macro base station according to claim 10 or 11 and the small base station according to claim 12 or 13; Wherein, described communication system also comprises UE according to claim 14.