CN108293218A

CN108293218A - Information transferring method, base station and communication system

Info

Publication number: CN108293218A
Application number: CN201580084923.2A
Authority: CN
Inventors: 邓天乐; 彭文杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: XFusion Digital Technologies Co Ltd
Priority date: 2015-12-01
Filing date: 2015-12-01
Publication date: 2018-07-17
Anticipated expiration: 2035-12-01
Also published as: WO2017091988A1; CN108293218B

Abstract

An embodiment of the present invention provides a kind of information transferring method, base station and communication systems.Described information transmission method includes, first base station broadcasts the public system information of at least one base station, wherein, there are communication interfaces between at least one base station and the first base station, the first base station determines the second base station of suitable user equipment UE access at least one base station, and combine the proprietary system information that the second base station sends the second base station to UE, to, it being capable of effective Transmission system information, further, first base station as macro station broadcasts the public system message in multiple small stations, it can be to avoid the identical system information of each small station repeated broadcast, save the interface-free resources in small station.

Description

Information transferring method, base station and communication system

Technical field

The present embodiments relate to wireless communication field, in particular to a kind of information transferring method, base station and communication system.

Background technique

As mobile broadband service continues to develop, currently used low-frequency resources have been unable to meet the business demand of user.Since high frequency resources are relative to low-frequency resources more horn of plenty, bandwidth is bigger, therefore develops high frequency resources and have become an important research field for promoting user throughput.

In the evolution system of forth generation (4th generation, 4G) communication system, the networking mode of low frequency macro station and high frequency small station common networking can be used.Specifically, multiple high frequency small stations can be disposed in the coverage area of one low frequency macro station, the signal covering of low frequency macro station is play a part of to supplement and be reinforced by high frequency small station, user equipment (user equipment, UE) in the coverage area of high frequency small station can receive the system information of high frequency small station broadcast.But by the way of the broadcast system information of small station, system information transmissions efficiency is lower.

Summary of the invention

The embodiment of the invention provides a kind of information transferring method, base station and communication systems, being capable of effective Transmission system information.

In a first aspect, the embodiment of the invention provides a kind of information transferring methods, including, first base station broadcasts the public system information of at least one base station；The first base station sends UE to the second base station and is suitble to access the notification message of second base station, and second base station belongs at least one described base station；The first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station.

In a possible implementation, the first base station is macro station, at least one described base station is at least one small station in macro station overlay area, and second base station is the small station that the first base station is selected from least one described small station.

Using information transferring method provided in an embodiment of the present invention, the public system information of at least one base station is broadcasted by first base station, and combines the proprietary system information that the second base station sends the second base station to UE, can effectively transmit the system information of the second base station.

In a possible implementation, the method also includes the first base station sends random access configuration information to the UE, so that the UE sends random access preamble at least one described base station；The first base station receives at least one described base station and receives the feedback message sent after the random leader sequence, includes the mark of the UE in the feedback message.

In a possible implementation, further include in the feedback message, the signal strength of load of base station and the random access leader sequence.

In a possible implementation, the first base station determines second base station according to the load of base station of at least one base station feedback and the signal strength of the random access preamble.

The non-competing random access procedure of UE Yu at least one base station are initiated by first base station and configured, suitable second base station can be selected according to the information of at least one base station feedback for UE, realize effective management of radio resource.

In a possible implementation, the first base station combines second base station, the proprietary system message of second base station is sent to the UE, including, the first base station indicates that the proprietary system information is sent to the first base station by second base station；The first base station receives the proprietary system information and is transmitted to the UE.

The public system information of the second base station is broadcasted by first base station and forwards the proprietary system information of the second base station to UE, improves the reliability of system information transmissions.Further, the public system message in multiple small stations is broadcasted by the first base station as macro station, can save the interface-free resources in small station to avoid the identical system information of each small station repeated broadcast.

In a possible implementation, the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including, the proprietary system information is broadcasted according to the instruction of the first base station in second base station.Then small station can be indicated to carry out the broadcast of proprietary system information by macro station, save the interface-free resources in small station.

Second aspect, the embodiment of the invention provides a kind of information transferring method, the second base station receives the UE that first base station is sent and is suitble to access the notification message of second base station；The second base stations united first base station, Xiang Suoshu UE send the proprietary system message of second base station, wherein the base station belongs at least one base station, and the public system information of at least one base station is broadcasted by the first base station.

In a possible implementation, the second base stations united first base station, the proprietary system message of second base station is sent to the UE, including, second base station is according to the instruction of the first base station, the proprietary system information is sent to the first base station, so that the proprietary system information is transmitted to the UE by the first base station.

In a possible implementation, the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including, the proprietary system information is broadcasted according to the instruction of the first base station in second base station.

Using information transferring method provided in an embodiment of the present invention, the proprietary system information of second base station is sent to UE by the second base stations united first base station, can effectively transmit the system information in small station, the reliability of lifting system information transmission.

The third aspect, the embodiment of the invention provides a kind of base station, which has the function of executing first base station in above method design.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.The module can be software and/or hardware.

In a possible implementation, it include processor, the first transmitter and the second transmitter in the structure of base station, first transmitter is configured for broadcasting the public system information of at least one base station, and there are communication interfaces between at least one described base station and the first base station.Second transmitter is configured for being suitble to access the notification message of second base station to the second base station transmission UE, and second base station belongs at least one described base station.Processor is configured for combining second base station, and Xiang Suoshu UE sends institute State the proprietary system message of the second base station.

Fourth aspect, the embodiment of the invention provides a kind of base station, which has the function of realizing the second base station in above method design.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.The module can be software and/or hardware.

In a possible implementation, it include receiver and processor in the structure of the base station, the receiver, the UE for being configured for receiving first base station transmission is suitble to access the notification message of the base station, and the base station belongs at least one base station between the first base station there are communication interface.The processor is configured for combining the first base station, and Xiang Suoshu UE sends the proprietary system message of the base station.

5th aspect, the embodiment of the invention provides a kind of communication system, which includes base station described in base station described in the third aspect and fourth aspect.

6th aspect, the embodiment of the invention provides a kind of computer storage mediums, and for being stored as computer software instructions used in base station described in the third aspect, it includes for executing program designed by above-mentioned aspect.

7th aspect, the embodiment of the invention provides a kind of computer storage mediums, and for being stored as computer software instructions used in base station described in fourth aspect, it includes for executing program designed by above-mentioned aspect.

, can be effectively to the system information of UE transmission base station using technical solution provided in an embodiment of the present invention, and save base station interface-free resources.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of application scenarios schematic diagram of the embodiment of the present invention；

Fig. 2 is another application scenarios schematic diagram of the embodiment of the present invention；

Fig. 3 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention；

Fig. 4 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention；

Fig. 5 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention；

Fig. 6 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention；

Fig. 7 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention；

Fig. 8 is a kind of structural schematic diagram of first base station provided in an embodiment of the present invention；

Fig. 9 is a kind of structural schematic diagram of second base station provided in an embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram of first base station provided in an embodiment of the present invention；

Figure 12 is a kind of structural schematic diagram of second base station provided in an embodiment of the present invention；

Figure 13 is a kind of schematic diagram of communication system provided in an embodiment of the present invention.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described in further detail below in conjunction with attached drawing.

The techniques described herein may be used in various communication systems, such as current 2G, 3G, 4G communication system and next generation communication system, such as global system for mobile communications (Global System for Mobile communications, GSM), CDMA (Code Division Multiple Access, CDMA) system, time division multiple acess (Time Division Multiple Access, TDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access Wireless, WCDMA), frequency division multiple access (Freq Uency Division Multiple Addressing, FDMA) system, orthogonal frequency division multiple access (Orthogonal Frequency-Division Multiple Access, OFDMA) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS) system, long term evolution (Long Term Evolution, LTE) the communication system or other similar communication system of system and the subsequent evolution standard of LTE.

The present embodiments relate to macro station can be base station (the Base Transceiver Station in GSM or CDMA, BTS), it is also possible to the base station (NodeB) in WCDMA, it can also be evolved base station (NodeB or the eNB or e-NodeB in LTE, evolutional Node B) or the communication system of the subsequent evolution of LTE in similar base station equipment.

The present embodiments relate to small station include but is not limited to following several: micro-base station (micro base station), femto base station (pico base station) and femto base station (femto base station), access point (access point, AP), it is not limited in the embodiment of the present invention.

In the embodiment of the present invention, communication system is equal with the concept of communication network, for example the communication network including first base station and the second base station is equal with the communication system for including first base station and the second base station, unified will be illustrated in the embodiment of the present invention with communication system.

It is involved in the present invention to UE may include the handheld device with wireless communication function, mobile unit, wearable device, calculate equipment or be connected to other processing equipments of radio modem, and various forms of user equipmenies, mobile station (mobile station, MS), terminal (terminal), terminal device (terminal equipment) etc., for convenience of describing, in the application, referred to as user equipment or UE.

The unidirectional communications link that the embodiment of the present invention defines base station to UE is downlink, and the unidirectional communications link of UE to base station is uplink.

Resource described in the embodiment of the present invention is transfer resource, including time-domain resource and frequency domain resource, can be used for carrying data or signaling during uplink communication process or downlink communication.I.e. resource described in the embodiment of the present invention can be the ascending resource that base station is UE distribution, send upstream data for UE；It is also possible to the downlink resource that base station is UE distribution, receives downlink data for UE.

It should be understood that the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

Scheme provided in an embodiment of the present invention can be adapted for a variety of networking scenes, such as macro station and small station composition Communication network or macro station and macro station composition communication network, the embodiment of the present invention is not specially limited this.It is appreciated that each base station in above-mentioned each networking scene can be same standard, it is also possible to different standard, such as in macro station and the scene of small station networking, macro station and small station can all be the base stations of LTE standard；Or macro station is the base station of LTE standard, and small station is the base station of the subsequent evolution standard of LTE, such as uses the small station of the 5th generation (5th generation, 5G) communication technology；Such as in macro station and the scene of macro station networking, two macro stations can be eNB, or using the macro station of the 5G communication technology, and two macro stations are adjacent base stations.

System information described in the embodiment of the present invention may include sorts of systems information used in LTE system, further include sorts of systems information used in 5G system, and the embodiment of the present invention does not do any restriction to the type of system message.Public system information described in the embodiment of the present invention refers to the shared system information in more than two base stations, i.e., the type of system information, it is interior be perhaps worth it is all identical；Proprietary system information refers to the system information for being only adapted to a certain base station, i.e., each base station has identical type but the information content or the different system information of value.Therefore, public system information and proprietary system information are in contrast, by taking macro station and the scene of small station networking as an example, to may include basic waveform parameter in the system information in each small station, if the value of the basic waveform parameter in each small station is identical, basic waveform parameter can be used as public system information；If the value of the basic waveform parameter in each small station is different, basic waveform parameter can be used as proprietary system information.In another example when only one small station in macro station coverage area, such as macro station can not distinguish the public system information and proprietary system information in small station, all system messages in one small station can be broadcasted by macro station with the scene of small station co-sited.

Fig. 1-Fig. 2 is two kinds of applicable application scenarios schematic diagrams of the embodiment of the present invention.

In communication network as shown in Figure 1, including a macro station, 4 independent small stations, including small station 1, small station 2 ... small station 4 are deployed in the overlay area (coverage area) of the macro station.As shown in Figure 1, the overlay area in small station can be and not overlap；The overlay area in any two small station can also have the part of overlapping, such as small station shown in FIG. 11 and small station 4.

In communication network as shown in Figure 2, macro station and small station can be arranged on the same website (site) with co-sited, i.e. macro station and small station.

It is appreciated that the overlay area in above-mentioned macro station or small station refers to the spatial dimension that the signal of macro station or small station transmitting can be radiated, overlay area is referred to as signal cover or signal coverage areas. In embodiments of the present invention, the overlay area of macro station is known as macrocell (macro cell), for meeting the mobility of UE and the demand of seamless coverage；It is responsible for the user data transmission in macrocell in specific region, such as blind spot or fringe region as the supplement covered to macro station in small station.The smaller hot spot region in macrocell that small station is covered is known as Microcell or cell (small cell/micro cell).

After UE enters macrocell, macro station can be accessed, establishes control plane in macro station.It when there is downlink service data to need to transmit, can be sent, can also be sent to UE by suitable small station to UE by macro station.Wherein, macro station can work in low frequency band, and small station can work in high-frequency band.It since the diffraction of high-frequency band signal, diffracting power are weak, is easy to be disturbed, and path loss is serious in communication process, information transmission reliability is poor.

Fig. 3 is a kind of flow diagram of information transferring method provided in an embodiment of the present invention.The method comprising the steps of S301-S303:

S301: first base station broadcasts the public system information of at least one base station.

It is appreciated that between at least one described base station and the first base station, there are communication interfaces.The communication interface refers to any one base station at least one described base station and existing logic interfacing between the first base station, which can be also possible to newly-established communication interface using the communication interface between existing base station.The communication interface can be fixed, the X2 interface in similar LTE system between eNB, be also possible to what event triggering was established, the present invention is not specially limited this.After communication interface completion is initially set up, any one base station in the first base station and at least one described base station information exchange can be carried out by the communication interface and data are transmitted.The physical media of above-mentioned communication interface can be copper cable, microwave, the connection types such as optical fiber, and the embodiment of the present invention is not specially limited this.

Optionally, the overlay area of at least one base station may be in the overlay area of the first base station；Alternatively, the overlay area of at least one base station can overlap with the overlay area of the first base station；Alternatively, the overlay area of at least one base station is independently of the base station coverage area, the i.e. unfolded part of the two.

Optionally, the first base station can be macro station, at least one described base station can be at least one small station being deployed in the overlay area of macro station.

Optionally, at least one described base station can be the adjacent base station of the first base station.

Wherein, the public system information is the shared system information at least one described base station.

The public system information may include frequency point, bandwidth, public land mobile network (Public Land Mobile Network, PLMN) the identical system information that each small station such as mark uses, when at least one described base station is small station, it can also include that information, the embodiment of the present invention such as the basic waveform parameter in small station are not specially limited this.

S302: the first base station sends user equipment (UE) to the second base station and is suitble to access the notification message of second base station, and second base station belongs at least one described base station.

Wherein, UE has accessed the first base station, establishes control plane in the first base station.

Optionally, first base station can select the second base station of a suitable UE access at least one described base station.Specifically, the metrical information that first base station can be reported according to UE selects second base station at least one described base station, wherein the metrical information indicates the signal receiving strength of at least one base station.

It is appreciated that UE can measure the signal receiving strength of each of at least one base station base station, and the measurement report for forming the signal receiving strength comprising each base station is reported to first base station.

S303: the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station.

Wherein, the proprietary system information includes the other systems information of the second base station configuration other than the public system information broadcasted in S301, including at least Master Information Block (Master Information Block, MIB), (the System Information Block Type 1 of system information block type one, SIB1), (the System Information Block Type 2 of system information block type two, SIB2 the system information that do not broadcasted by macro station in), such as Physical HARQ Indicator Channel (Physical HARQ Indicator Channel, PHICH it) configures, System Frame Number, the information such as antenna configuration.

Optionally, the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including, the first base station indicates second base station by the proprietary system Information is sent to the first base station；The first base station receives the proprietary system information and is transmitted to the UE.

Optionally, the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including, the first base station indicates proprietary system information described in second base station broadcast, and the UE obtains the proprietary system information according to the broadcast of second base station.

Optionally, the first base station work is in low frequency band, at least one described base station operation is in high-frequency band.Wherein, high-frequency band described in the embodiment of the present invention, can be the frequency range such as 3.5GHz (megahertz), 5.2GHz, 5.6GHz, 5.8GHz, and the embodiment of the present invention is not specially limited this.

Using information transferring method provided in an embodiment of the present invention, the public system information of at least one base station is broadcasted by first base station, first base station determines the second base station of suitable UE access at least one described base station, and combine the proprietary system information that the second base station sends the second base station to UE, thus, it is possible to effectively transmit the system information of the second base station；Further, under macro station and the scene of multiple small station common networkings, the first base station as macro station broadcasts the public system message in multiple small stations, can save the interface-free resources in small station to avoid the identical system information of each small station repeated broadcast.

Fig. 4 is a kind of signaling process schematic diagram of information transferring method provided in an embodiment of the present invention.As shown in figure 4, including macro station, the UE for accessing the macro station, small station 1 and small station 2 in the communication network that the information transferring method is applicable in, wherein small station 1 and small station 2 and macro station are respectively present communication interface.

It is appreciated that small station 1 and small station 2 is merely illustrative is used, cannot constitute any restrictions to small station quantity.In actual scene, single or multiple small stations can be set under a macro station.

The method comprising the steps of S401-S4010:

S401: macro station broadcasts public system information.

Wherein, the public system information is the system information shared by small station 1 and small station 2, such as may include the information such as frequency point, bandwidth, PLMN mark.

The public system information can store in macro station.

S402:UE is to macro station report measurement information.

UE needs to realize down-going synchronous with each small station before accessing small station.Optionally, UE can directly be synchronized to small station；Further according to the time slot relationship between macro station and small station, and then it can also be synchronized to small station, the embodiment of the present invention is not specially limited down link synchronisation method by synchronous with macro station.

Optionally, in order to realize the down-going synchronous between UE, each small station can keep overseas broadcast synchronization signal.The synchronization signal that UE passes through each small station of detection, with receive synchronization signal small station between carry out down time-frequency synchronization, determine cyclic prefix (Cyclic Prefix, CP) length, Physical Cell Identifier is obtained, determines the dual-mode (FDD/TDD) of system.UE can use the synchronization signal in the multiple small stations detected, calculate the signal receiving strength in small station, and forms metrical information and be reported to macro station.Optionally, above-mentioned synchronization signal may include primary synchronization signal (the Primary Synchronization Signal in LTE,) and secondary synchronization signal (Secondary Synchronization Signal PSS, SSS), it is also possible to the synchronization signal of other forms in 5G system, the embodiment of the present invention is not specially limited this.

Optionally, in the case that UE has been synchronized to small station, macro station can first positioning UE in the coverage area in certain several small station, and then DRS (Dedicated Reference Signal) is configured for UE on oriented small station, UE utilizes the DRS (Dedicated Reference Signal) got, the signal receiving strength in small station is calculated, and forms metrical information and is reported to macro station.Optionally, DRS (Dedicated Reference Signal) can be configured by macro station, and be sent to UE by way of proprietary signaling.The embodiment of the present invention without limitation, can be channel state information reference signals (Channel State Information-reference Signal, CSI-RS), be also possible to other reference signals to the type of DRS (Dedicated Reference Signal).

Optionally, the signal receiving strength in small station can by but at least one of be not limited to following parameter and indicate:

Reference Signal Received Power (Reference Signal Received Power, RSRP), Reference Signal Received Quality (Reference Signal Received Quality, RSRQ), channel quality indicates (Channel Quality Indicator, CQI), received signal strength indicator (Received Signal Strength Indication, RSSI).

S403: macro station determines the small station of suitable UE access according to the metrical information received.

Specifically, macro station receives the metrical information that UE is reported, such as the RSSI in each small station, is that UE selects suitable small station to access according to metrical information, i.e. completion decision process.Optionally, in addition to the signal receiving strength of metrical information instruction, macro station is also conceivable to the loading condition in small station.Wherein, macro station can by with small station Information exchange obtain the loading condition in small station, interactive information may include transport network layer load, hardware load, compound active volume etc..

For convenience, " small station for being suitble to UE access " occurred in the embodiment of the present invention can also referred to as " selected small station ".In embodiments of the present invention, it is assumed that the selected small station of macro station is small station 1.

It is understood that, using method provided in an embodiment of the present invention, macro station can determine that at least one is suitble to the small station of UE access, that is UE can access at least one small station, the embodiment of the present invention is only signal and purposes of discussion using small station 1 as selected small station, does not constitute any restriction of the quantity in the small station selected to macro station.

S404: macro station sends instruction message to small station 1, indicates that proprietary system information is sent to the macro station by small station 1.

Optionally, which can be proprietary system information request message.

Specifically, after macro station completes decision process, the result of decision can be informed to selected small station, and request its proprietary system information to the selected small station, by way of request message to be transmitted to UE.

Optionally, can also include step S405 after selected small station receives above-mentioned instruction message: small station 1 sends confirmation message (Acknowledgement, ACK) to macro station.If macro station does not receive the confirmation message, above-mentioned instruction message can be sent again over time, become.

Optionally, as an embodiment of the present invention, macro station can request the proprietary system information of the update in selected small station.Specifically, since there are communication interfaces between macro station and small station, system information interaction has been carried out after the completion of communication interface is initially set up.Therefore when there is the request access small station UE, macro station does not need to request its all proprietary system information to selected small station, it is only necessary to request the part proprietary system information updated.Further, proprietary system information is segmented into two classes, and one kind is static proprietary system information, these proprietary system information are will not to change in the long period, such as antenna configuration, macro station can obtain this type of information in the interaction of initial system information.Another kind of is dynamic proprietary system information, this part proprietary system information can periodically or non-periodically change, such as System Frame Number, and macro station needs to request such system information to selected small station.

S406: macro station sends a notification message to UE.

Specifically, the result of decision is notified UE using notification message by macro station, can be carried in the notification message The identification information in the selected small station of macro station.

It is noted that the execution precedence relationship that step S404 and step S406 are not fixed.It can be executed by said sequence, S406 can also be first carried out, then execute S404, also may be performed simultaneously two steps, the embodiment of the present invention is not specially limited this.

S406: small station 1 sends proprietary system information to macro station.

Selected small station can will issue macro station in addition to all system informations other than the public system information broadcasted in S401 by macro station after receiving above-mentioned instruction message.

Optionally, in another embodiment of the present invention, small station periodically can send proprietary system information to macro station after the result of decision for knowing macro station, alternatively, spontaneously sending the proprietary system information updated to macro station when proprietary system information changes.

S407: the proprietary system information in small station 1 is transmitted to UE by macro station.

Optionally, macro station can be by way of proprietary signaling, such as by wireless heterogeneous networks (Radio Resource Control, RRC) proprietary signaling, above-mentioned proprietary system information is issued UE.

Optionally, step S406 and step S408 can be merged into a step, i.e. notification message and the proprietary system message received can be carried together and be sent to UE in a proprietary signaling by macro station.

Optionally, after UE receives whole system informations including public system information and proprietary system information, can carry out data transmission to the small station initiating random access procedure selected, and then with the small station.Specifically, this method can also include step S409-S4010:

S409:UE initiating random access procedure.

Whole system informations of the UE according to the selected small station obtained from macro station, especially random access relevant configuration information carry out random access with selected small station.

S4010:UE carries out data transmission with small station 1.

UE is successfully accessed after small station, so that it may be carried out data transmission with the small station.Optionally, small station can be directly to core net, i.e. small station can independently carry out data transmission；Small station also may be coupled to macro station, and the data in small station are transmitted via macro station and core net.

Optionally, as another embodiment of the invention, it is provided with single small station when macro station lower, such as when small station 1, all system informations in small station 1 can be broadcasted all by macro station.

Using information transferring method provided in this embodiment, the public system information broadcast in small station is carried out by macro station and proprietary system information forwards, improves the reliability of system information transmissions, and save small station interface-free resources.

Fig. 5 is a kind of signaling process schematic diagram of information transferring method provided in an embodiment of the present invention, the method comprising the steps of S501-S508:

S501: macro station broadcasts public system information.

S502:UE is to macro station report measurement information.

S503: macro station determines the small station of suitable UE access according to the metrical information received.

Step S501-S503 is referred to the description of the step S401-S403 in embodiment illustrated in fig. 2, and this will not be repeated here.

In the embodiment shown in fig. 5, still assume that the small station that macro station is UE selection is small station 1.

S504: macro station sends instruction message to small station 1, and proprietary system information is broadcasted in instruction small station 1.

Specifically, the small station that macro station is selected result of decision notice by way of instruction message, i.e. small station 1, and small station 1 is required to start to broadcast proprietary system information, including at least the system information that do not broadcasted by macro station in MIB, SIB1, SIB2.

S505: proprietary system information is broadcasted in small station 1.

Specifically, small station 1 can start to broadcast proprietary system information after the instruction message for receiving macro station transmission.

Optionally, small station can broadcast proprietary system information using any one in following three kinds of modes:

First, proprietary system message is broadcasted according to preset broadcast mode in small station, UE is received according to preset reception rule, specifically, preset broadcast mode includes the running time-frequency resource that default broadcast cycle and default proprietary system information occupy, and UE can obtain proprietary system information according to preset rule on corresponding running time-frequency resource.

The second, proprietary system message is broadcasted according to the broadcast mode that macro station configures in small station, and will be corresponding by macro station Broadcast configuration information inform UE, then small station is broadcasted according to the configuration of macro station, and UE is received according to the configuration of macro station.Optionally, macro station can carry broadcast configuration information in the instruction message in the selected small station of notice, and the broadcast configuration information is carried in the message for notifying the UE.

Third, small station configuration proprietary system message broadcast, and corresponding broadcast configuration information is informed into macro station, then the broadcast configuration information is transmitted to UE by macro station, UE is received according to the configuration in small station.Optionally, small station can carry the broadcast configuration information in the feedback message for being sent to macro station, and macro station can carry the broadcast configuration information in the decision notification message for being sent to UE.

It is appreciated that above-mentioned three kinds of broadcast modes are merely illustrative of, the embodiment of the present invention does not do any restriction to the broadcast mode in small station.

Optionally, in another embodiment of the present invention, small station 1 can send ACK to macro station, to have acknowledged receipt of the instruction message of macro station transmission before broadcasting proprietary system information.

S506: macro station sends a notification message to UE.

Specifically, the result of decision is notified UE using notification message by macro station, and the identification information in the selected small station of macro station can be carried in the notification message.UE starts listening to the broadcast message in the small station after the identification information for obtaining selected small station.

It should be pointed out that the execution precedence relationship that step S504 and step S506 are not fixed.It can be executed by said sequence, S506 can also be first carried out, then execute S504, also may be performed simultaneously, the embodiment of the present invention is not specially limited this.

S507:UE initiating random access procedure.

S508:UE carries out data transmission with small station 1.

It is similar with embodiment illustrated in fig. 2, after UE obtains whole system informations in small station, to small station initiating random access procedure and it can carry out data transmission, detailed process is referred to the associated description of embodiment illustrated in fig. 4, and this will not be repeated here.

Using information transferring method provided in this embodiment, under scene identical with embodiment illustrated in fig. 4, small station can carry out system information broadcast by UE demand, i.e. when UE attempts to access small station, small station just can carry out the broadcast of proprietary system information based on the instruction of macro station, further save the interface-free resources in small station.

Fig. 6 is the flow diagram of another information transferring method provided in an embodiment of the present invention.

It is understood that, it is to carry out random access again after UE selectes small station that above-mentioned Fig. 4 and embodiment illustrated in fig. 5, which are in macro station, in the embodiment shown in fig. 6, based on non-competing random access procedure, the configuration of random access is carried out by macro station, and realize the selection in small station and the transmission of system information, the final data realized between UE and selected small station are transmitted.The method comprising the steps of S601-S6011:

S601: macro station broadcasts the public system information in small station.

S602:UE is to macro station report measurement information.

S601-S602 is referred to the description of the S401-S402 in embodiment illustrated in fig. 3, and this will not be repeated here.

In this embodiment, S602 is optional step.The metrical information reported by UE can determine the range in the small station of suitable UE access, that is, determine at least one candidate small station.

S603: macro station sends random access configuration information to UE.

The random access configuration information may include the mark of PRACH resource instruction and the UE.The PRACH resource instruction is used to indicate the PRACH resource for distributing to UE, and the PRACH resource sends random access preamble for UE.

The mark of the UE can be random access radio network temporary identifier (Random Access Radio Network Temporary Identifier, RA-RNTI), or a specific lead code identifies (Preamble Identity, Preamble ID), or the combination of RA-RNTI and Preamble ID, it can also be international mobile subscriber identity (International Mobile Subscriber Identity,) or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary Ide IMSI Ntity, C-RNTI) etc., the embodiment of the present invention is not specially limited the type of the mark of UE.

When UE is when being identified as RA-RNTI, corresponding random access preamble can be selected by UE oneself.

Optionally, macro station can also send the relevant information that the macro station is UE configuration to small station, and the relevant information includes at least the mark of the UE.When small station does not have public PRACH resource, macro station can also be that the PRACH resource of UE configuration informs small station by macro station.

S604:UE sends special random access preamble to small station 1 and small station 2 respectively.

Specifically, the configuration information that UE is issued according to macro station sends special random access preamble to each small station.It should be noted that UE needs the different timing according to different small stations to send above-mentioned special random access preamble if asynchronous between multiple small stations that UE is detected；If multiple small stations be all between each other it is synchronous, UE only needs to send the special random access preamble according to timing at this time.

Optionally, UE can send the mark of the UE while sending special random access preamble to small station, and the mark of the UE can be RA-RNTI.

S605: small station 1 and small station 2 send feedback message to macro station respectively.

It is appreciated that the timing that small station 1 shown in fig. 6 and small station 2 send feedback message is only a kind of signal, the embodiment of the present invention is not specially limited the sequencing for sending feedback message.

It wherein, include the mark of the UE in the feedback message.

Specifically, it after small station receives the special random access preamble that UE is sent, is fed back to macro station, the mark of UE is included at least in feedback message, the mark of the UE can be the information such as Preamble ID or RA-RATI or IMSI or C-RNTI.Optionally, macro station can be combined with PRACH resource location to identify UE.

It optionally, can also include the information such as signal strength, the small station load of the random access preamble that small station receives in the feedback message.Specifically, own situation is informed macro station by feedback message by each small station, determines the small station for being suitble to UE access according to information such as signal strength, the small station loads of the random access preamble in feedback message by macro station.

Optionally, the proprietary system information in small station can also be carried in feedback message.

Optionally, in another embodiment of the present invention, decision can be carried out according to itself loading condition, signal receiving strength etc. by small station, is just fed back when loading condition or signal receiving strength are met certain condition.

It is appreciated that the small station for not limiting all special random access preambles for receiving UE transmission requires to be fed back in the embodiment of the present invention.Above-mentioned " small station 1 and small station 2 send feedback message to macro station respectively " by way of example only, cannot constitute the number restriction that the small station of random access feedback is carried out in the embodiment of the present invention.

S606: macro station determines the small station of suitable UE access.

The mark for the UE that macro station is fed back according to the small station for receiving special random access preamble, such as Preamble ID or RA-RNTI, judge whether small station feeds back correctly, then selects a suitable small station access according to information such as the signal strength of small station feedback and loading conditions again for UE.Wherein, the running time-frequency resource position that macro station can be occupied according to Preamble ID, RA-RNTI or feedback message judges whether the content of small station feedback is related to target UE, is same with the UE for ensuring that the UE of small station feedback is requested with macro station.

Still assume that the selected small station is small station 1 in the embodiment of the present invention.

S607: macro station sends a notification message to small station 1.

Specifically, the result of decision is informed chosen small station using notification message by macro station.Optionally, if small station is not the TC-RNTI of UE distribution to macro station feedback small station, macro station can inform small station by the TC-RNTI by UE under macro station in an announcement message.Wherein, TC-RNTI is UE in the random access procedure for initiating small station, and small station is UE distribution.

S608: small station 1 sends ACK to macro station.

Specifically, after selected small station receives after the decision notification that macro station is sent, an ACK is sent to macro station.Optionally, the proprietary system information in selected small station can also send jointly to macro station with ACK.It is determined by macro station after being suitble to the small station of UE access, its proprietary system information is only fed back by the selected small station.

Wherein, S608 is an optional step.

S609: macro station sends a notification message to UE.

Specifically, the result of decision is notified UE using notification message by macro station, it include the proprietary system information in the selected small station fed back in S605 or S608 in the notification message, can also include, the identification information in the small station, Timing Advance (the timing advance that the small station is UE distribution, TA) the information such as value and TC-RNTI and uplink authorization information (uplink grant information, UL Grant).

It is appreciated that if the proprietary system information in small station 1 is to feed back in step s 605 to macro station, point for the sequencing that step S607 and step S609 are not carried out；If the proprietary system information in small station 1 is to feed back in step S608 to macro station, step S609 is after step S607.

S6010:UE establishes RRC with small station 1 and connect.

Specifically, UE can initiate RRC connection establishment process, and RRC connection is established between UE and selected small station, similar with the RRC of existing macro station connection establishment process.The embodiment of the present invention does not repeat them here this.

S6011:UE carries out data transmission with small station 1.

Data transmission procedure is referred to the associated description of other embodiments of the invention, and this will not be repeated here.

Optionally, in another embodiment of the present invention, macro station can send the proprietary system information in small station by proprietary signaling method to UE, for example, macro station individually sends the signaling of the proprietary system information in a carrying small station to UE.

Optionally, in another embodiment of the present invention, its proprietary system information can be sent to UE by broadcast mode by selected small station.The detailed description of broadcast mode about small station is referred to the associated description of other embodiments of the invention, and this will not be repeated here.

Using information transferring method provided in this embodiment, macro station broadcasts public system information, improve the reliability of system information transmissions, the non-competing random access procedure in UE and small station is initiated and configured to macro station, and the information that can be fed back according to small station selects suitable small station for UE, realize effective management of radio resource, in addition, the small station that macro station is UE selection can carry out system information broadcast according to UE demand, the interface-free resources in small station are further saved.

Fig. 7 is the signaling process schematic diagram of another information transferring method provided in an embodiment of the present invention.

According to above-described embodiment, macro station can select at least one small station to carry out data transmission for UE, in data transmission procedure, beam forming (beamforming) can be applied on small station.To realize that beam forming, the interception reference signal (sounding reference signal, SRS) that small station needs to report according to UE carry out channel estimation.

Assuming that UE can respectively with macro station covering under small station 1 and small station 2 carry out data transmission.The method comprising the steps of S701-S706:

S701: macro station sends detection (sounding) configuration information to UE.

Specifically, macro station sends sounding configuration information to UE, including SRS running time-frequency resource, sending cycle of SRS occupied etc..

Optionally, macro station can also each small station into coverage area, such as small station 1 and small station 2 in the present embodiment send sounding configuration information.Specifically, if small station 1 and small station 2 have all been assigned to identical sounding resource, macro station is not necessarily to the sounding configuration information sent to UE being then forwarded to each small station；If small station 1 and small station 2 need macro station that configuration information is informed each small station without identical sounding resource.For example, in embodiment, macro station needs to send above-mentioned sounding configuration information to small station 1 and small station 2.

S702:UE sends SRS to small station 1 and small station 2 respectively.

Specifically, the sounding configuration information that UE can be sent according to macro station sends SRS to small station 1 and small station 2 with the corresponding period on corresponding running time-frequency resource in conjunction with cell-level parameter and user class parameter.

S703: small station 1 and small station 2 send feedback message to macro station respectively.

Specifically, after small station receives the SRS that UE is sent, RSRQ or RSRP is measured, and measurement result is carried in feedback message.Optionally, feedback message can also include the load information etc. in small station.

It is appreciated that the embodiment of the present invention sends the sequencing of SRS to UE to small station 1 and small station 2, alternatively, small station 1 and small station 2 send the sequencing of feedback message without being particularly limited to macro station.

S704: macro station selects the small station for being appropriate for beam forming.

Specifically, the information that macro station is fed back according to small station 1 and small station 2 makes a policy, and a suitable small station is selected to carry out beam forming.The embodiment of the present invention is not specially limited the selection mode in small station, for example, can choose the small station that RSRQ or RSRP value is high and load is small carries out beam forming.In embodiments of the present invention, it is assumed that macro station has selected small station 1.

S705: macro station sends a notification message to small station 1.

Specifically, the small station selected backward that macro station makes a policy sends a notification message, and the small station is notified to can use beam forming and provide data transport service for the UE.

S706: small station 1 carries out beam forming.

Specifically, the SRS that selected small station is sent according to UE estimates channel gain, calculates corresponding weight, be loaded on each antenna in small station, forms wave beam, sends data to UE by the wave beam.The detailed process of beam forming is referred to any beamforming patterns in the prior art, and the embodiment of the present invention is to this It is not specially limited.

Using information transferring method provided in this embodiment, realizes that the sounding between UE and small station is configured by macro station, realize the high reliability transport of signaling.Meanwhile it is that UE selects suitable small station to carry out beam forming that macro station, which is based on SRS, realizes resource unified management.

It is appreciated that Fig. 4-embodiment illustrated in fig. 7 is the further supplement and explanation to embodiment illustrated in fig. 3, the content of each embodiment description can be referred to mutually.

Fig. 8 is a kind of structural schematic diagram of first base station 800 provided in an embodiment of the present invention.

First base station 800 includes radio unit 801, the first transmission unit 802 and processing unit 803.

Wherein, radio unit 801, for broadcasting the public system information of at least one base station.

It is appreciated that between at least one described base station and first base station 800, there are communication interfaces.The communication interface is logic interfacing, the related content of other embodiments of the invention is referred to about the specific descriptions of communication interface, this will not be repeated here.

Wherein, the public system information is the shared system information at least one described base station.The related content of the method for the present invention section Example is referred to about the detailed description of public system information, this will not be repeated here.

First transmission unit 802 is suitble to access the notification message of second base station for sending UE to the second base station, and second base station belongs at least one described base station.

Processing unit 803, for combining second base station, Xiang Suoshu UE sends the proprietary system message of second base station.

Wherein, proprietary system information includes the other systems information of the second base station other than the public system information that radio unit 801 is broadcasted.The related content of the method for the present invention section Example is referred to about the detailed description of proprietary system information, this will not be repeated here.

Optionally, in the embodiment, first base station 800 can be macro station, at least one above-mentioned base station can be at least one small station in 800 coverage area of first base station, then above-mentioned second base station can be one or more small stations at least one small station.

Optionally, at least one described base station can be the adjacent base station of first base station 800.

Optionally, first base station 800 can work in low frequency band, at least one described base station can work in high-frequency band.

Optionally, in yet another embodiment of the present invention, first base station 800 further includes the first receiving unit 804 and the second transmission unit 805.In this embodiment, processing unit 803 is specifically used for, and indicates that the proprietary system information is sent to the first base station 800 by second base station；First receiving unit 804 is used to receive the proprietary system information of the second base station transmission；Second transmission unit 805 is used to the proprietary system information being transmitted to the UE.

Optionally, in yet another embodiment of the present invention, processing unit 803 is specifically used for, and indicates proprietary system information described in second base station broadcast, so that the UE obtains the proprietary system information according to the broadcast of second base station.

About first base station 800 and the second base stations united work, the detailed process for sending the proprietary system message of the second base station to UE is referred to the detailed description of the method for the present invention section Example, and this will not be repeated here.

Optionally, as another embodiment of the invention, processing unit 803 can be also used for the second base station that a suitable UE access is selected at least one described base station.Specifically, in the embodiment, first base station 800 may include the second receiving unit 806, the metrical information reported for receiving the UE, the metrical information indicates the signal receiving strength of at least one base station, processing unit 803 can select second base station according to the signal receiving strength of at least one base station at least one described base station.How the detailed process of the second base station is selected to be referred to the associated description of the method for the present invention section Example according to signal receiving strength about first base station 800, this will not be repeated here.

First base station provided in an embodiment of the present invention broadcasts the public system information of at least one base station, and the second base station of suitable UE access is determined at least one described base station, and the second base station of joint sends the proprietary system information of the second base station to UE；Thus, it is possible to effectively transmit the system information of the second base station, the reliability of system information transmissions is improved, further, first base station broadcasts the public affairs in multiple small stations as macro station System message altogether, can save the interface-free resources in small station to avoid the identical system information of each small station repeated broadcast.

Optionally, as another embodiment of the invention, the first transmission unit 802 can be also used for sending random access configuration information to the UE, then UE can send random access preamble at least one described base station according to the random access configuration information.First receiving unit 804 can be also used at least one described base station of reception and receive the feedback message sent after the random leader sequence, include the mark of the UE in the feedback message.

It optionally, further include the signal strength of load of base station and the random access leader sequence in feedback message.

Optionally, processing unit 803 can determine second base station according to the load of base station of at least one base station feedback and the signal strength of the random access preamble.

Random access configuration is carried out about by first base station 800, and determines that the detailed process of the second base station is referred to the method for the present invention section Example, such as the detailed description of embodiment illustrated in fig. 6, this will not be repeated here.

In this embodiment, initiated by first base station 800 and configured the non-competing random access procedure of UE at least one base station including the second base station, it can be suitble to the base station of access for UE selection according to the information of at least one base station feedback, realize that radio resource effectively manages.

It is appreciated that first base station 800 can be used for executing the technical solution of embodiment of the method shown in Fig. 3, and as macro station, the technical solution for executing embodiment of the method shown in Fig. 4-Fig. 7 is participated in, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

It should be noted that radio unit 801, the first transmission unit 802, the second transmission unit 805 can be transmitter or transceiver in hardware realization.First receiving unit 804, the second receiving unit 806 can be receiver or transceiver.Processing unit 802 can be embedded in the form of hardware or independently of in the processor of base station, can also be stored in a software form in the memory of base station, execute the corresponding operation of the above modules in order to which processor calls.The processor can be central processing unit (Central Processing Unit, referred to as CPU), microprocessor, single-chip microcontroller etc..

Fig. 9 is a kind of structural schematic diagram of second base station 900 provided in an embodiment of the present invention.

Second base station 900 includes receiving unit 901, processing unit 902.

Receiving unit 901, the UE for receiving first base station transmission are suitble to access the notification message of the base station, wherein second base station 900 belongs at least one base station, and the public system information of at least one base station is broadcasted by the first base station.

The specific descriptions of public system information about first base station broadcast at least one base station are referred to the related content of other embodiments of the invention, and this will not be repeated here.

Processing unit 902, for combining the first base station, Xiang Suoshu UE sends the proprietary system message of second base station.

The related content of the method for the present invention section Example is referred to about the detailed description of proprietary system information, this will not be repeated here.

Optionally, the first base station can be macro station, at least one described base station can be at least one small station in macro station coverage area, then the second base station 900 can be a small station at least one described small station.

Optionally, the first base station can work in low frequency band, at least one described base station can work in high-frequency band.

Optionally, in one embodiment of the invention, the second base station 900 further includes transmission unit 903.In this embodiment, processing unit 902 is used for the instruction according to the first base station, indicates that the proprietary system information is sent to the first base station by transmission unit 903, so that the proprietary system information is transmitted to the UE by the first base station.

Optionally, in one embodiment of the invention, the second base station 900 further includes radio unit 904.In this embodiment, processing unit 902 is used for the instruction according to the first base station, and instruction radio unit 904 broadcasts the proprietary system information.

It works together about the second base station 900 with first base station, the detailed process for sending the proprietary system message of the second base station 900 to UE is referred to the detailed description of the method for the present invention section Example, and this will not be repeated here.

Second base station provided in an embodiment of the present invention, base station as the suitable UE access determined by first base station, joint first base station sends the proprietary system information of the second base station to UE, can effectively transmit the system information of the second base station, improve the reliability of system information transmissions.

It is appreciated that the second base station 900 can be used as small station, the technical solution for executing embodiment of the method shown in Fig. 4-Fig. 7 is participated in, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

It should be noted that receiving unit 901 can be receiver or transceiver in hardware realization；Transmission unit 903, radio unit 904 can be transmitter or transceiver.Processing unit 902 can be embedded in the form of hardware or independently of in the processor of base station, can also be stored in a software form in the memory of base station, execute the corresponding operation of the above modules in order to which processor calls.The processor can be CPU, microprocessor, single-chip microcontroller etc..

Figure 10 is the structural schematic diagram of UE1000 provided in an embodiment of the present invention a kind of.

The UE includes receiving unit 1001, acquiring unit 1002.

Receiving unit 1001, the public system information of second base station for receiving the first base station broadcast, second base station is that the first base station is the second base station for being suitble to the UE access that the UE is determined.

Wherein, first base station can be macro station, and the second base station can be small station；Alternatively, first base station and the second base station are adjacent base stations.

Optionally, first base station can work in low frequency band, and the second base station can work in high-frequency band.

Acquiring unit 1002 obtains the proprietary system information of second base station.

Particular content about the UE process and proprietary system information for obtaining proprietary system information is referred to the associated description of other embodiments of the invention, and this will not be repeated here.

Optionally, as an embodiment of the invention, UE1000 further includes transmission unit 1003, for to the first base station report measurement information, the signal receiving strength of the metrical information instruction, so that the first base station determines second base station if appropriate for the UE access according to the metrical information.

Optionally, UE1000 further includes processing unit 1004, and for detecting the synchronization signal of second base station, the signal receiving strength of second base station is calculated according to the synchronization signal.

It is referred to the related content in other embodiments of the invention to the detailed process of first base station report measurement information about UE1000, this will not be repeated here.

It should be noted that can execute the function of receiving unit 1001 and acquiring unit 1002 by a receiver in hardware realization, i.e. receiving unit 1001 and acquiring unit 1002 can be located in the same receiver or transceiver.Processing unit 1004 can be embedded in the form of hardware or independently of in the processor of base station, can also be stored in a software form in the memory of base station, execute the corresponding operation of the above modules in order to which processor calls.The processor can be CPU, microprocessor, single-chip microcontroller etc..

UE provided in an embodiment of the present invention, the public system information and first base station for receiving the second base station of first base station broadcast forward or the proprietary system information of the second base station of the second base station broadcast, the high reliablity of system information transmissions.

Figure 11 is a kind of structural schematic diagram of first base station 1100 provided in an embodiment of the present invention.

First base station 1100 includes the first transmitter 1101, the second transmitter 1102, processor 1103.

First transmitter 1101, for broadcasting the public system information of at least one base station.

It is appreciated that between at least one described base station and the first base station 1100, there are communication interfaces.Wherein, which is logic interfacing, the related content of other embodiments of the invention is referred to about the specific descriptions of communication interface, this will not be repeated here.

Second transmitter 1102 is suitble to access the notification message of second base station for sending user equipment (UE) to the second base station, and second base station belongs at least one described base station.

Wherein, proprietary system information includes the other systems information of the second base station other than the public system information of the first transmitter 1101 broadcast.The related content of the method for the present invention section Example is referred to about the detailed description of proprietary system information, this will not be repeated here.

Processor 1103, for combining second base station, Xiang Suoshu UE sends the proprietary system message of second base station.

Wherein, processor 1103 can be multi-core processor, it is also possible to dispersion and the processor connected with communication link on geographical location, it can be CPU, it is also possible to digital signal processor (digital signal processor, DSP) or other specialized processors, the embodiment of the present invention are not specially limited this.In practical applications, processor 1103 can be integrated in the baseband processing unit (base band unit, BBU) of base station.

It is appreciated that first base station 1100 can be macro station, at least one above-mentioned base station can be at least one small station in 1100 coverage area of first base station, then above-mentioned second base station can be one or more small stations at least one small station in the embodiment.

Optionally, at least one described base station can be the adjacent base station of first base station 1100.

Optionally, first base station 1100 can work in low frequency band, at least one described base station can work in high-frequency band.

Optionally, in yet another embodiment of the present invention, first base station 1100 further includes the first receiver 1104.In this embodiment, processor 1103 is specifically used for, and indicates that the proprietary system information is sent to the first base station 1100 by second base station；First receiver 1104 is used to receive the proprietary system information of the second base station transmission；First transmitter 1101 can be also used for the proprietary system information being transmitted to the UE.

Optionally, in yet another embodiment of the present invention, processor 1103 is specifically used for, and indicates proprietary system information described in second base station broadcast, so that the UE obtains the proprietary system information according to the broadcast of second base station.

About first base station 1100 and the second base stations united work, the detailed process for sending the proprietary system message of the second base station to UE is referred to the detailed description of the method for the present invention section Example, and this will not be repeated here.

Optionally, as another embodiment of the invention, processor 1103 can be also used for the second base station that a suitable UE access is selected at least one described base station.Specifically, in the embodiment, first base station 1100 may include second receiver 1105, the metrical information reported for receiving the UE, the metrical information indicates the signal receiving strength of at least one base station, processor 1103 can select second base station according to the signal receiving strength of at least one base station at least one described base station.How the detailed process of the second base station is selected to be referred to the associated description of the method for the present invention section Example according to signal receiving strength about first base station 1100, this will not be repeated here.

It is understood that, first transmitter 1101 described in the embodiment of the present invention and the second transmitter 1102 can be independent two sending devices, wherein, first base station 1100 sends information or data to terminal devices such as UE using the first transmitter 1101, and first base station 1100 is using the second transmitter 1102 to there are other base stations of communication interface to send information or data with first base station 1100.Similarly, the first receiver 1104 can be independent two receiving devices with second receiver 1105.Wherein, second receiver 1105 can be integrated in the same transceiver with the first transmitter 1101；First receiver 1104 can be integrated in the same transceiver with the second transmitter 1102.In practical applications, above-mentioned transceiver can be located at the radio frequency part of base station, such as in Remote Radio Unit (radio remote unit, RRU).

First base station provided in an embodiment of the present invention, broadcast the public system information of at least one base station, and the second base station of suitable UE access is determined at least one described base station, combine the proprietary system information that the second base station sends the second base station to UE, to, the system information of the second base station can effectively be transmitted, improve the reliability of system information transmissions, further, the first base station broadcasts the public system message in multiple small stations as macro station, the interface-free resources in small station can be saved to avoid the identical system information of each small station repeated broadcast.

Optionally, as another embodiment of the invention, the second transmitter 1102 can be used for the UE send random access configuration information, then UE can according to the random access configuration information to it is described extremely A few base station sends random access preamble.First receiver 1104 can be also used at least one described base station of reception and receive the feedback message sent after the random leader sequence, include the mark of the UE in the feedback message.

Optionally, processor 1103 can determine second base station according to the load of base station of at least one base station feedback and the signal strength of the random access preamble.

Random access configuration is carried out about by first base station 1100, and determines that the detailed process of the second base station is referred to the method for the present invention section Example, such as the detailed description of embodiment illustrated in fig. 6, this will not be repeated here.

In this embodiment, initiated by base station 1101 and configured the non-competing random access procedure of UE at least one base station including the second base station, it can be suitble to the base station of access for UE selection according to the information of at least one base station feedback, realize that radio resource effectively manages.

It is appreciated that first base station 1100 can be used for executing the technical solution of embodiment of the method shown in Fig. 3, and as macro station, the technical solution for executing embodiment of the method shown in Fig. 4-Fig. 7 is participated in, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, first base station 1100 further includes antenna 1106, for emitting or receiving signal.

It further, can also include memory 1107 in the first base station 1100, the memory 1107 saves the necessary program instruction in base station and data for coupling with processor 1103.

The base station other parts include but is not limited to, for example, power supply unit or hop, perhaps part or Operation and Maintenance part are alerted, those of ordinary skill in the art will appreciate that, according to different implementations, base station can have different component parts, and the present embodiment does not limit this.

First transmitter 1101, the second transmitter 1102, processor 1103, the first receiver 1104, second receiver 1105 can be connected by communication bus 1108.The communication bus can be local bus (local bus).

Figure 12 is a kind of structural schematic diagram of second base station 1200 provided in an embodiment of the present invention.

The base station includes receiver 1201, processor 1202.

Receiver 1201, the UE for receiving first base station transmission are suitble to access the notification message of the base station, wherein the base station belongs at least one base station, and the public system information of at least one base station is broadcasted by the first base station.

Processor 1202, for combining the first base station, Xiang Suoshu UE sends the proprietary system message of the base station.

Wherein, processor 1202 can be multi-core processor, is also possible to dispersion and the processor connected with communication link on geographical location, can be CPU, is also possible to DSP or other specialized processors, the embodiment of the present invention are not specially limited this.In practical applications, processor 1202 can be integrated in the BBU of base station.

Optionally, the first base station can be macro station, at least one described base station can be at least one small station in macro station coverage area, then the second base station 1200 belongs at least one described small station.

Optionally, second base station 1200 can be the adjacent base station of the first base station.

Optionally, in one embodiment of the invention, the second base station 1200 further includes the first transmitter 1203.In this embodiment, processor 1202 is used for the instruction according to the first base station, indicates that the proprietary system information is sent to the first base station by the first transmitter 1203.Then the proprietary system information can be transmitted to the UE by the first base station.

Optionally, in one embodiment of the invention, the second base station 1200 further includes the second transmitter 1204.In this embodiment, processor 1202 is used for the instruction according to the first base station, and the second transmitter 1204 of instruction broadcasts the proprietary system information.

It works together about the second base station 1200 with first base station, the detailed process for sending the proprietary system message of the second base station 1200 to UE is referred to the detailed description of the method for the present invention section Example, and this will not be repeated here.

It is understood that, receiver 1201 described in the embodiment of the present invention can be independently of the receiving device for the information or data for receiving the terminal devices such as UE in the second base station 1200, and dedicated for receiving, there are the information or datas that other base stations of communication interface are sent with the second base station 1200；First transmitter 1203 and the second transmitter 1204 can be independent two sending devices, wherein, using the first transmitter 1203 to there are other base stations of communication interface to send information or data with the second base station 1200, the second base station 1200 sends information or data to terminal devices such as UE using the second transmitter 1204 for second base station 1200.

It is appreciated that the second base station 1200 can be used as small station, the technical solution for executing embodiment of the method shown in Fig. 4-Fig. 7 is participated in, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the second base station 1200 further includes antenna 1205, for emitting or receiving signal.

It further, further include memory 1206 in second base station 1200, the memory 1206 saves the necessary program instruction in base station and data for coupling with processor 1202.

The receiver 1201, processor 1202, the first transmitter 1203, the second transmitter 1204 can be connected by communication bus 1106.The communication bus can be local bus (local bus).

Figure 13 is a kind of schematic diagram of communication system provided in an embodiment of the present invention.It include first base station 1301, the second base station 1302 in the communication system.

In the communication system, there are communication interfaces between first base station 1301 and the second base station 1302.

Wherein, first base station 1301 can be macro station, and second base station 1302 can be the small station in macro station coverage area；Or second base station 1302 can be the adjacent base station of first base station 1301.

First base station 1301 can work in low frequency band, and second base station 1302 can be with running high frequency frequency range.

First base station 1301, for broadcasting the public system information of at least one base station；UE is sent to the second base station 1302 to be suitble to access the notification message of second base station；Wherein, second base station 1302 belongs at least one described base station.

Second base station 1302, the UE for receiving the transmission of first base station 1301 are suitble to access the notification message of second base station 1302.

The first base station 1301 combines second base station 1302, and Xiang Suoshu UE sends the proprietary system message of second base station 1302.

Optionally, the first base station 1301 combines second base station 1302, and the proprietary system message that Xiang Suoshu UE sends second base station 1302 includes that first base station 1301 indicates that the proprietary system information is sent to the first base station 1301 by the second base station 1302；Second base station 1302 sends the proprietary system information to first base station 1301 according to the instruction of first base station 1301；What first base station 1301 will acquire is transmitted to UE with the proprietary system information.

Optionally, the first base station 1301 combines second base station 1302, the proprietary system message for sending second base station 1302 to the UE includes, first base station 1301 indicates that the proprietary system information is broadcasted in the second base station 1302, second base station 1302 the proprietary system information is broadcasted according to the instruction of first base station 1301.

It works together about first base station 1301 and the second base station 1302, the detailed process for sending the proprietary system message of the second base station 1302 to UE is referred to the detailed description of the method for the present invention section Example, and this will not be repeated here.

Optionally, as another embodiment of the invention, first base station 1301 can select the second base station of a suitable UE access at least one described base station.Specifically, the metrical information that first base station 1301 is reported by receiving the UE, the metrical information indicates the signal receiving strength of at least one base station, and according to the signal receiving strength of at least one base station, second base station 1302 is selected at least one described base station.How the detailed process of the second base station 1302 is selected to be referred to the associated description of the method for the present invention section Example according to signal receiving strength about first base station 1301, this will not be repeated here.

Communication system provided in an embodiment of the present invention includes first base station and first base station is the second base station of the selected access of UE, by the public system information of at least one base station of the first base station broadcast including the second base station, and combine the proprietary system information that the second base station sends the second base station to UE, to, the system information of the second base station can effectively be transmitted, improve the reliability of system information transmissions, further, under macro station and the scene of multiple small station common networkings, first base station as macro station broadcasts the public system message in multiple small stations, it can be to avoid the identical system information of each small station repeated broadcast, save the interface-free resources in small station.

Optionally, as another embodiment of the invention, first base station 1301 can send random access configuration information to the UE, then UE can send random access preamble at least one described base station according to the random access configuration information.First base station 1301 can be also used at least one described base station of reception and receive the feedback message sent after the random leader sequence, include the mark of the UE in the feedback message.

Optionally, first base station 1301 can determine second base station 1302 according to the load of base station of at least one base station feedback and the signal strength of the random access preamble.

Random access configuration is carried out about by first base station 1301, and determines that the detailed process of the second base station 1302 is referred to the method for the present invention section Example, such as the detailed description of embodiment illustrated in fig. 6, this will not be repeated here.

In this embodiment, initiated by first base station 1301 and configured the non-competing random access procedure of UE at least one base station including the second base station 1302, it can be suitble to the base station of access for UE selection according to the information of at least one base station feedback, realize that radio resource effectively manages.

It is understood that, first base station 1301 in communication system provided in an embodiment of the present invention can be the base station in Fig. 8 or embodiment illustrated in fig. 11, second base station 1302 can be the base station in Fig. 9 or embodiment illustrated in fig. 12, detailed description about each equipment in the communication system, it is referred to the related content of the other embodiment of the present invention, this will not be repeated here.

It is appreciated that can be direct communication or indirect communication described in the embodiment of the present invention " communication " or " communication bus "；It is also possible to logic communication or physical connection communication；It is also possible to point-to-point communication, or utilizes bus communication, the embodiment of the present invention does not do any restriction to this.

It is apparent to those skilled in the art that can be cross-referenced between various embodiments of the present invention.For convenience and simplicity of description, the course of work of the communication system of the equipment of foregoing description, the specific work process of module or unit in equipment, and the equipment including foregoing description, can refer to corresponding processes in the foregoing method embodiment description.

By the description of above embodiment, it is apparent to those skilled in the art that the present invention can realize by means of software and necessary general hardware platform, naturally it is also possible to which by hardware, but in many cases, the former is more preferably embodiment.Based on this understanding, substantially the part that contributes to existing technology can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: the various media that can store program code such as USB flash disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic or disk.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method are being not above in scope of the present application, can be realized in other way.Such as, base station embodiment described above is only schematical, such as, the division of the module or unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.It is wherein described Unit may or may not be physically separated as illustrated by the separation member, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.Those of ordinary skill in the art can understand and implement without creative efforts.

In addition, the schematic diagram of described system, apparatus and method and different embodiments can be with other systems, module, techniques or methods combination or integrated in without departing from scope of the present application.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of base station or unit, can be electronics, machinery or other forms.

It is described above; only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and anyone skilled in the art is in the technical scope disclosed by the present invention; it can easily think of the change or the replacement, should be covered by the protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

A kind of information transferring method, which is characterized in that the method includes,

The first base station broadcasts the public system information of at least one base station；

The first base station sends user equipment (UE) to the second base station and is suitble to access the notification message of the second base station, and second base station belongs at least one described base station；

The first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station.
The method according to claim 1, wherein the method also includes,

The first base station sends random access configuration information to the UE, so that the UE sends random access preamble at least one described base station；

The first base station receives at least one described base station and receives the feedback message sent after the random leader sequence, includes the mark of the UE in the feedback message.
According to the method described in claim 2, it is characterized in that, further including the signal strength of load of base station and the random access leader sequence in the feedback message.
According to the method described in claim 3, it is characterized in that,

The first base station determines second base station according to the load of base station of at least one base station feedback and the signal strength of the random access preamble.
Method according to claim 1 to 4, which is characterized in that the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including,

The first base station indicates that the proprietary system information is sent to the first base station by second base station；

The first base station receives the proprietary system information and is transmitted to the UE.
Method according to claim 1 to 4, which is characterized in that the first base station combines second base station, and Xiang Suoshu UE sends the proprietary system message of second base station, including,

The first base station indicates proprietary system information described in second base station broadcast, so that the UE obtains the proprietary system information according to the broadcast of second base station.
- 6 any method according to claim 1, which is characterized in that

The first base station work is in low frequency band, at least one described base station operation is in high-frequency band.
- 7 any method according to claim 1, which is characterized in that

The public system information is the shared system information at least one described base station.
A kind of information transferring method, which is characterized in that the method includes,

Second base station receives the user equipment (UE) that first base station is sent and is suitble to access the notification message of second base station；

The second base stations united first base station, Xiang Suoshu UE send the proprietary system message of second base station；

Wherein, the base station belongs at least one base station, and the public system information of at least one base station is broadcasted by the first base station.
According to the method described in claim 9, it is characterized in that, the second base stations united first base station, Xiang Suoshu UE send the proprietary system message of second base station, including,

The proprietary system information is sent to the first base station according to the instruction of the first base station by second base station, so that the proprietary system information is transmitted to the UE by the first base station.
According to the method described in claim 9, Xiang Suoshu UE sends the proprietary system message of second base station it is characterized in that, the first base station combines second base station, including,

Second base station proprietary system information is broadcasted according to the instruction of the first base station.
According to any method of claim 9-11, which is characterized in that

The first base station work is in low frequency band, at least one described base station operation is in high-frequency band.
A kind of first base station, which is characterized in that the first base station includes,

Radio unit, for broadcasting the public system information of at least one base station；

First transmission unit is suitble to access the notification message of second base station for sending user equipment (UE) to the second base station, and second base station belongs at least one described base station；

Processing unit, for combining second base station, Xiang Suoshu UE sends the proprietary system message of second base station.
First base station according to claim 13, which is characterized in that it further include the second transmission unit,

Second transmission unit is used for, and Xiang Suoshu UE sends random access configuration information, so that the UE sends random access preamble at least one described base station；

The first base station further includes the first receiving unit, receives the feedback message sent after the random leader sequence for receiving at least one described base station, includes the mark of the UE in the feedback message.
First base station according to claim 14, which is characterized in that further include the signal strength of load of base station and the random access leader sequence in the feedback message.
First base station according to claim 15, which is characterized in that the processing unit is specifically used for,

According to the signal strength of the load of base station of at least one base station feedback and the random access preamble, second base station is determined.
Any first base station of 3-16 according to claim 1, which is characterized in that the processing unit is specifically used for,

Indicate that the proprietary system information is sent to the first base station by second base station；

The first base station further includes the first receiving unit, for receiving the proprietary system information；

The first base station further includes the second transmission unit, for the proprietary system information to be transmitted to the UE.
Any first base station of 3-16 according to claim 1, which is characterized in that the processing unit is specifically used for,

Proprietary system information described in second base station broadcast is indicated, so that the UE obtains the proprietary system information according to the broadcast of second base station.
Any first base station of 3-18 according to claim 1, which is characterized in that

The first base station work is in low frequency band, at least one described base station operation is in high-frequency band.
Any first base station of 3-19 according to claim 1, which is characterized in that

The public system information is the shared system information at least one described base station.
A kind of second base station, which is characterized in that including,

Receiving unit, the user equipment (UE) for receiving first base station transmission are suitble to access the notification message of second base station；

Processing unit, for combining the first base station, Xiang Suoshu UE sends the proprietary system message of second base station；

Wherein, second base station belongs at least one base station, and the public system information of at least one base station is broadcasted by the first base station.
Second base station according to claim 21, which is characterized in that it further include transmission unit,

The processing unit is used for the instruction according to the first base station, indicates that the proprietary system information is sent to the first base station by the transmission unit, so that the proprietary system information is transmitted to the UE by the first base station.
Second base station according to claim 21, which is characterized in that it further include radio unit,

The processing unit is used for the instruction according to the first base station, indicates that the radio unit broadcasts the proprietary system information.
According to any second base station claim 21-23, which is characterized in that

The first base station work is in low frequency band, at least one described base station operation is in high-frequency band.