CN107615821A

CN107615821A - A kind of data transmission method, equipment and system

Info

Publication number: CN107615821A
Application number: CN201680032346.7A
Authority: CN
Inventors: 邓天乐; 彭文杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-09-07
Filing date: 2016-09-07
Publication date: 2018-01-19
Anticipated expiration: 2036-09-07
Also published as: WO2017041718A1; WO2017041211A1; CN107615821B

Abstract

The invention discloses a kind of data transmission method, equipment and system, for solve the problems, such as existing high frequency small station just can not the uplink feedback based on UE be that UE selects suitable wave beam to carry out data transmission.The invention provides a kind of data transmission method, and applied to the communication system including first base station and the second base station, this method includes：First base station obtains the object beam that the terminal for having accessed the first base station can be serviced in the wave beam of the second base station；First base station is by the part or all of downlink data of the terminal, it is sent to the second base station, so that the downlink data of reception is sent to the terminal by the second base station by the object beam, so as under the auxiliary of first base station, terminal can establish down data links with the second base station, so as to improve the resource utilization of the second base station, while the load of first base station is also reduced, improve the throughput of terminal.

Description

A kind of data transmission method, equipment and system

This application claims Patent Office of the People's Republic of China was submitted on September 7th, 2015, application No. is PCT/CN2015/089067, a kind of priority of the patent application of entitled " data transmission method, equipment and system ", entire contents are hereby incorporated by reference in the application.

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of data transmission method, equipment and system.

Background technique

Demand with user equipment to mobile broadband constantly increases, and the problem of frequency spectrum resource scarcity is more and more prominent, and operators start for attention to be transferred on high frequency resources.For high frequency resources relative to low-frequency resources more horn of plenty, bandwidth is bigger, can effectively improve user equipment handling capacity.On the basis of low frequency macro station provides wide covering, high frequency small station is arranged for the hot zones in low frequency macro station coverage area, can effectively solve the problem that hot spot capacity problem, as shown in Figure 1.

Compared with low-frequency resources, the signal wavelength of high frequency resources is shorter, by taking antenna is placed in half times of wavelength interval as an example, the number of antennas that can be arranged in unit area at this time will increase, this is highly beneficial to extensive multiple-input and multiple-output (Massive Multiple Input Multiple Output, the Massive MIMO) system of arrangement.The prior art can use Massive MIMO on high frequency small station, and provide service using the user equipment that beam forming technique covers edge for small station, improve its handling capacity.Massive MIMO is compared with traditional MIMO, its number of antennas is more, and beam forming technique is the antenna pattern for generating highly directive using the strong correlation of space channel and the principle of interference of wave, the main lobe of antenna pattern is directed toward user equipment, to improve signal-to-noise ratio, power system capacity or coverage area are improved.

User equipment (User Equipment, UE positioned at the edge of high frequency small station coverage area；Also referred to as terminal), downlink data can be received by the wave beam in the high frequency small station, but since high-frequency signal reliability is low, so that the uplink signal of UE can not reach high frequency small station, in this way, high frequency small station can not just be based on UE Uplink feedback be that UE selects suitable wave beam to carry out data transmission.

Summary of the invention

The embodiment of the invention provides a kind of data transmission method, equipment and systems, it solves since high-frequency signal reliability is low, so that the uplink signal of UE can not reach high frequency small station, leading to high frequency small station can not be the problem of UE selects suitable wave beam to carry out data transmission based on the uplink feedback of UE.

In a first aspect, a kind of data transmission method, applied to the communication system including first base station and the second base station, this method comprises:

The first base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

Some or all of terminal downlink data is sent to second base station by the first base station, so that the downlink data is sent to the terminal by the object beam by second base station.

With reference to first aspect, in the first possible implementation, this method further include:

The first base station receives the information for the beam modes that second base station that second base station is sent uses.

The possible implementation of with reference to first aspect the first, in the second possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that second base station uses and indicating information and second base station for the first of the first beam modes；

If second base station forms different wave beams in section using the second beam modes in different times, the information of the beam modes includes: to be used to indicate beam modes that second base station uses as the second indication information of the second beam modes and the information of the corresponding time interval of each wave beam of second base station.

With reference to first aspect, the possible implementation of the first of first aspect or second of possible implementation of first aspect, in the third possible implementation, this method further include:

The first base station is that the terminal is configured to measurement on each wave beam of second base station Reference signal, and the configuration information of the reference signal is sent to the terminal；Or

The first base station sends configuring request to second base station, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；And the first base station receives second base station and is the configuration information for the reference signal for measurement that the terminal configures on all wave beams of second base station, and the configuration information is sent to the terminal.

The third possible implementation with reference to first aspect, in the fourth possible implementation, the first base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

The metrical information that the first base station is reported based on the terminal determines the object beam, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；Or

Load information on each wave beam for second base station that the first base station is sent based on the metrical information that the terminal reports with second base station received, determine the object beam, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station.

The third possible implementation with reference to first aspect, in a fifth possible implementation, before the object beam that the terminal for having accessed the first base station can be serviced in the wave beam for obtaining second base station, this method comprises: the metrical information that the first base station reports the terminal, it is sent to second base station, wherein, the metrical information is what the terminal measured the reference signal on the different beams of second base station；

The first base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising: the first base station receives the information for the object beam that second base station is sent, to obtain the object beam.

5th kind of possible implementation of the 4th kind of possible implementation or first aspect with reference to first aspect, in a sixth possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measurement door of setting in the measured value that the terminal obtains the reference signal measurement The identification information of the measured value of limit and its corresponding antenna port；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or the information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.

With reference to first aspect, in the 7th kind of possible implementation, the first base station and second base station co-sited, the first base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

The first base station will currently measure the arrival bearing DOA between the obtained terminal and the first base station, compare with the DOA saved；The first base station determines the smallest DOA of the difference of the DOA current with the terminal from the DOA saved, and the corresponding wave beam of the DOA determined is determined as the object beam；Or

The first base station will currently measure the arrival bearing DOA between the obtained terminal and the first base station, and DOA ranges different from what is saved compare；The first base station determines the DOA range where the current DOA of the terminal, and wave beam some or all of in the corresponding wave beam of DOA range determined is determined as the object beam；Or

The first base station will currently measure the path loss information between the obtained terminal and the first base station and DOA, and the combination formed with the every group of path loss information and DOA saved compares；Described The smallest combination of difference of path loss information and DOA current with the terminal respectively is determined from the combination saved in one base station, and the corresponding wave beam of the combination determined is determined as the object beam；Or

The first base station will currently measure the path loss information between the obtained terminal and the first base station and DOA, and the combined range that path loss information different from what is saved and DOA are formed compares；The first base station determines the combined range where the current path loss information of the terminal and DOA, and wave beam some or all of in the corresponding wave beam of combined range determined is determined as the object beam.

With reference to first aspect, in the 8th kind of possible implementation, the first base station and second base station co-sited, the first base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

The information that the first base station currently measures the first base station is sent to second base station, wherein the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

The first base station receives the information for the object beam that second base station that second base station is sent is formed, and determines the corresponding object beam of the information of the object beam.

7th kind of possible implementation of the 4th kind of possible implementation or first aspect with reference to first aspect, in the 9th kind of possible implementation, this method further include:

The identification information of the information of the object beam and the terminal is sent to second base station by the first base station.

With reference to first aspect or first aspect the first either into the 9th kind of possible implementation formula, in the tenth kind of possible implementation, this method further include:

The information of the object beam is sent to the terminal by the first base station.

The possible implementation of second with reference to first aspect, in a kind of the tenth possible implementation, this method further include:

The information for the beam modes that second base station received uses is sent to the terminal by the first base station.

Second aspect, a kind of data transmission method, applied to the communication including first base station and the second base station System, this method comprises:

Second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

Second base station receives some or all of the terminal that the first base station is sent downlink data, and the downlink data is sent to the terminal by the object beam.

In conjunction with second aspect, in the first possible implementation, this method further include:

Second base station sends the information for the beam modes that second base station uses to the first base station.

In conjunction with the first possible implementation of second aspect, in the second possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that second base station uses and indicating information and second base station for the first of the first beam modes；

If second base station forms different wave beams on section using the second beam modes in different times, the information of the beam modes includes: to be used to indicate beam modes that second base station uses as the second indication information of the second beam modes and the information of the corresponding time interval of each wave beam of second base station.

In conjunction with second aspect, in the third possible implementation, this method further include:

Second base station sends the load information on each wave beam of second base station to the first base station.

In conjunction with the first of second aspect or second aspect either into the third possible implementation formula, in the fourth possible implementation, this method further include:

Second base station receives the configuration information that the first base station that the first base station is sent is the reference signal for measurement that the terminal configures on each wave beam of second base station；Or

Second base station is configured to the reference signal of measurement for the terminal after receiving the configuring request that the first base station is sent on each wave beam of second base station, and by the configuration information of the reference signal, is sent to the first base station.

In conjunction with the first of second aspect or second aspect either into the 4th kind of possible implementation formula, in a fifth possible implementation, second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

Second base station receives the information for the object beam that the first base station is sent and the identification information of the terminal, to obtain the object beam.

In conjunction with the first of second aspect or second aspect either into the 4th kind of possible implementation formula, in a sixth possible implementation, before second base station obtains the object beam that can service the terminal for having accessed the first base station in the wave beam of second base station, this method further include:

Second base station receives the metrical information that the first base station is sent, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

Second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, include: second base station according to the load information on each wave beam of the metrical information and/or second base station, determines the object beam.

In conjunction with second aspect, in the 7th kind of possible implementation, this method further include: second base station receives the first base station and sends the information that the first base station currently measures, wherein, the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

Second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, it include: second base station according at least one information, the antenna weights of second base station are determined, to form the object beam that can service the terminal.

In conjunction with the 6th kind of possible implementation of second aspect or the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation, after second base station obtains the object beam that can service the terminal for having accessed the first base station in the wave beam of second base station, this method further include:

The identification information of the information of the object beam and the terminal is sent to the first base station by second base station.

In conjunction with the 7th kind of possible implementation of second aspect, in the 9th kind of possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different Antenna port, the metrical information include:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

The third aspect, a kind of base station, applied to the communication system including the base station and the second base station, the base station includes:

Object beam obtains module, can service the object beam for having accessed the terminal of the base station in the wave beam for obtaining second base station；

Sending module, for second base station being sent to, so that the downlink data is sent to the terminal by the object beam by second base station for some or all of terminal downlink data.

In conjunction with the third aspect, in the first possible implementation, the base station further include:

Receiving module, for receiving the information for the beam modes that second base station that second base station is sent uses.

In conjunction with the first possible implementation of second aspect, in the second possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different Antenna port, the information of the beam modes include: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that second base station uses and indicating information and second base station for the first of the first beam modes；

In conjunction with the first possible implementation of the third aspect, the third aspect or second of possible implementation of the third aspect, in the third possible implementation, the base station further include: reference signal configuration module, for the reference signal of measurement to be configured on each wave beam of second base station for the terminal；The sending module is also used to: the configuration information of the reference signal is sent to the terminal；

Or

The sending module is also used to: the second base station Xiang Suoshu sends configuring request, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；The receiving module is also used to: receiving the configuration information that second base station is the reference signal for measurement that the terminal configures on all wave beams of second base station；The sending module is also used to: the configuration information is sent to the terminal.

In conjunction with the third possible implementation of the third aspect, in the fourth possible implementation, the object beam obtains module and is specifically used for:

Based on the metrical information that the terminal reports, the object beam is determined, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

Or

Load information on each wave beam for second base station that the metrical information reported based on the terminal and second base station received are sent, determine the object beam, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station.

In conjunction with the third possible implementation of the third aspect, in a fifth possible implementation, The sending module is also used to: the metrical information that the terminal is reported, and is sent to second base station, wherein the metrical information is what the terminal measured the reference signal on the different beams of second base station；

The receiving module is also used to: the information for the object beam that second base station is sent is received, to obtain the object beam.

In conjunction with the 4th kind of possible implementation of the third aspect or the 5th kind of possible implementation of the third aspect, in a sixth possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

In conjunction with the third aspect, in the 7th kind of possible implementation, the base station and second base station co-sited, the object beam obtain module and are specifically used for:

The arrival bearing DOA between the obtained terminal and the base station will be currently measured, is compared with the DOA saved；And from the DOA saved, the DOA current with the terminal is determined The smallest DOA of difference, and the corresponding wave beam of the DOA determined is determined as the object beam；Or

The arrival bearing DOA between the obtained terminal and the base station will be currently measured, DOA ranges different from what is saved compare；And determine DOA range where the current DOA of the terminal, and wave beam some or all of in the corresponding wave beam of DOA range determined is determined as the object beam；Or

Path loss information and DOA between the obtained terminal and the base station will be currently measured, the combination formed with the every group of path loss information and DOA saved compares；And from the combination saved, the smallest combination of difference of path loss information and DOA current with the terminal respectively is determined, and the corresponding wave beam of the combination determined is determined as the object beam；Or

Path loss information and DOA between the obtained terminal and the base station will be currently measured, the combined range that path loss information different from what is saved and DOA are formed compares；And determine combined range where the current path loss information of the terminal and DOA, and wave beam some or all of in the corresponding wave beam of combined range determined is determined as the object beam.

In conjunction with the third aspect, in the 8th kind of possible implementation, the base station and second base station co-sited,

The sending module is also used to: the information that the base station is currently measured, and is sent to second base station, wherein the information that the base station currently measures includes at least the DOA between the terminal and the base station；

The receiving module is also used to: receiving the information for the object beam that second base station that second base station is sent is formed；

The object beam obtains module and is specifically used for: determining the corresponding object beam of the information of the object beam.

In conjunction with the 4th kind of possible implementation of the third aspect or the 7th kind of possible implementation of the third aspect, in the 9th kind of possible implementation, the sending module is also used to:

By the identification information of the information of the object beam and the terminal, it is sent to second base station.

In conjunction with the first of the third aspect or the third aspect appointing into the 9th kind of possible implementation One mode, in the tenth kind of possible implementation, the sending module is also used to:

The information of the object beam is sent to the terminal.

In conjunction with second of possible implementation of the third aspect, in a kind of the tenth possible implementation, the sending module is also used to:

The information for the beam modes that second base station that the receiving module receives uses is sent to the terminal.

Fourth aspect, a kind of base station, applied to the communication system including first base station and the base station, the base station includes:

Object beam obtains module, can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining the base station；

Receiving module, some or all of described terminal for receiving first base station transmission downlink data；

Sending module, for the downlink data to be sent to the terminal by the object beam.

In conjunction with fourth aspect, in the first possible implementation, the sending module is also used to:

The information for the beam modes that second base station uses is sent to the first base station.

In conjunction with the first possible implementation of fourth aspect, in the second possible implementation, if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that the base station uses and indicating information and the base station for the first of the first beam modes；

If the base station forms different wave beams on section using the second beam modes in different times, the information of the beam modes includes: to be used to indicate beam modes that the base station uses as the information of the corresponding time interval of each wave beam of the second indication information of the second beam modes and the base station.

In conjunction with fourth aspect, in the third possible implementation, the sending module is also used to:

The load information on each wave beam of second base station is sent to the first base station.

In conjunction with the first of fourth aspect or fourth aspect either into the third possible implementation formula, in the fourth possible implementation, the base station further include: the second reference signal configuration module, for being described after the configuring request that the receiving module receives that the first base station is sent Terminal is configured to the reference signal of measurement on each wave beam of second base station；The sending module is also used to: by the configuration information of the reference signal, being sent to the first base station；

Or

The receiving module is also used to: receiving the configuration information that the first base station that the first base station is sent is the reference signal for measurement that the terminal configures on each wave beam of second base station.

In conjunction with the first of fourth aspect or fourth aspect either into the 4th kind of possible implementation formula, in a fifth possible implementation, the receiving module is also used to:

The information for the object beam that the first base station is sent and the identification information of the terminal are received, to obtain the object beam.

In conjunction with the first of fourth aspect or fourth aspect either into the 4th kind of possible implementation formula, in a sixth possible implementation, the receiving module is also used to: receiving the metrical information that the first base station is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The object beam obtains module and is specifically used for: according to the load information on each wave beam of the metrical information and/or second base station, determining the object beam.

In conjunction with fourth aspect, in the 7th kind of possible implementation, the receiving module is also used to: receiving the information that the first base station currently measures, wherein the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

The object beam obtains module and is specifically used for: according to the information received, the antenna weights of the base station is determined, to form the object beam that can service the terminal.

In conjunction with the 6th kind of possible implementation of fourth aspect or the 7th kind of possible implementation of fourth aspect, in the 8th kind of possible implementation, the sending module is also used to:

The identification information of the information of the object beam and the terminal is sent to the first base station.

In conjunction with the 7th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation, if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

If the base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of the base station obtains；Or the information and the terminal reference signal measurement on the antenna port of the base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of the base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of the base station of the terminal, N is positive integer.

5th aspect, a kind of base station, applied to the communication system including the base station and the second base station, the base station includes: processor, first transceiver, second transceiver, communication interface and system bus.Wherein: being connected between the processor and communication interface by the system bus and complete mutual communication；The communication interface with other communication equipments for interacting；The first transceiver with the second base station for carrying out data transmission；The second transceiver with terminal for carrying out data transmission；

The processor can service the object beam for having accessed the terminal of the base station in the wave beam for obtaining second base station；

The first transceiver, for second base station being sent to, so that the downlink data is sent to the terminal by the object beam by second base station for some or all of terminal downlink data.

In conjunction with the 5th aspect, in the first possible implementation, the first transceiver is also used to:

Receive the information for the beam modes that second base station that second base station is sent uses.

In conjunction with the first possible implementation of the 5th aspect, in the second possible implementation, If second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that second base station uses and indicating information and second base station for the first of the first beam modes；

In conjunction with second of possible implementation of the 5th aspect, the first possible implementation of the 5th aspect or the 5th aspect, in the third possible implementation, the processor is also used to:

The reference signal of measurement is configured on each wave beam of second base station for the terminal, and the configuration information of the reference signal is sent to the terminal；The second transceiver is also used to: the configuration information is sent to the terminal；

Or

The first transceiver is also used to: the second base station Xiang Suoshu sends configuring request, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；Receive the configuration information that second base station is the reference signal for measurement that the terminal configures on all wave beams of second base station；The second transceiver is also used to: the configuration information is sent to the terminal.

In conjunction with the third possible implementation of the 5th aspect, in the fourth possible implementation, the processor is specifically used for:

Or

In conjunction with the third possible implementation of the 5th aspect, in a fifth possible implementation, the first transceiver is also used to: the metrical information that the terminal that the second transceiver is received reports, it is sent to second base station, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station；The information for the object beam that second base station is sent is received, to obtain the object beam.

In conjunction with the 4th kind of possible implementation of the 5th aspect or the 5th kind of possible implementation of the 5th aspect, in a sixth possible implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

In conjunction with the 5th aspect, in the 7th kind of possible implementation, the base station and second base station co-sited, as the third optional object beam acquisition pattern, the processor is specifically used for:

In conjunction with the 5th aspect, in the 8th kind of possible implementation, the base station and second base station co-sited,

The first transceiver is also used to: the information that the base station is currently measured, and is sent to second base station, wherein the information that the base station currently measures includes at least the DOA between the terminal and the base station；Receive the information for the object beam that second base station that second base station is sent is formed；

The processor is specifically used for: determining the corresponding object beam of the information of the object beam.

In conjunction with the 4th kind of possible implementation of the 5th aspect or the 7th kind of possible implementation of the 5th aspect, in the 9th kind of possible implementation, it is also used to based on the first above-mentioned optional object beam acquisition pattern or the third optional object beam acquisition pattern, the first transceiver:

In conjunction with the 5th aspect or the 5th aspect the first either into the 9th kind of possible implementation formula, in the tenth kind of possible implementation, the second transceiver is also used to:

The information of the object beam is sent to the terminal.

In conjunction with second of possible implementation of the 5th aspect, in a kind of the tenth possible implementation, the information of the second transceiver, the beam modes for using second base station received is sent to the terminal.

6th aspect, a kind of base station, applied to the communication system including first base station and the base station, the base station includes: processor, first transceiver, second transceiver, communication interface and system bus；Wherein:

It is connected between the processor and communication interface by the system bus and completes mutual communication；The communication interface with other communication equipments for interacting；The first transceiver with the second base station for carrying out data transmission；The second transceiver with terminal for carrying out data transmission；

The processor can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining the base station；

The first transceiver, some or all of described terminal for receiving first base station transmission downlink data；

The second transceiver, for the downlink data to be sent to the terminal by the object beam.

In conjunction with the 6th aspect, in the first possible implementation, the first transceiver is also used to:

In conjunction with the first possible implementation of the 6th aspect, in the second possible implementation, if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that the base station uses and indicating information and the base station for the first of the first beam modes；

In conjunction with the 6th aspect, in the third possible implementation, the first transceiver is also used to:

In conjunction with the 6th aspect or the 6th aspect the first either into the third possible implementation formula, in the fourth possible implementation, the processor is also used to: after the configuring request that the first transceiver receives that the first base station is sent, being configured to the reference signal of measurement on each wave beam of second base station for the terminal；The first transceiver is also used to: by the configuration information of the reference signal, being sent to the first base station；

Or

The first transceiver is also used to: receiving the configuration information that the first base station that the first base station is sent is the reference signal for measurement that the terminal configures on each wave beam of second base station.

In conjunction with the 6th aspect or the 6th aspect the first either into the 4th kind of possible implementation formula, in a fifth possible implementation, the first transceiver is also used to:

In conjunction with the 6th aspect or the 6th aspect the first either into the 4th kind of possible implementation formula, in a sixth possible implementation, the first transceiver is also used to: receiving the metrical information that the first base station is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The processor is specifically used for: according to the load information on each wave beam of the metrical information and/or second base station, determining the object beam.

In conjunction with the 6th aspect, in the 7th kind of possible implementation, the first transceiver is also used to: receiving the information that the first base station currently measures, wherein the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

The processor is specifically used for: according to the information received, the antenna weights of the base station is determined, to form the object beam that can service the terminal.

In conjunction with the 6th kind of possible implementation of the 6th aspect or the 7th kind of possible implementation of the 6th aspect, in the 8th kind of possible implementation, the first transceiver is also used to:

In conjunction with the 7th kind of possible implementation of the 6th aspect, in the 9th kind of possible implementation, If the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

7th aspect, a kind of communication system, the communication system include:

First base station can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining second base station；By some or all of terminal downlink data, it is sent to second base station, so that the downlink data is sent to the terminal by the object beam by second base station；

Second base station can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining second base station；Some or all of the terminal that the first base station is sent downlink data is received, and the downlink data is sent to the terminal by the object beam.

In method, apparatus and system provided in an embodiment of the present invention, the object beam for having accessed the terminal of the first base station can be serviced in the wave beam of the second base station of first base station acquisition；By some or all of terminal downlink data, it is sent to the second base station, so that the second base station passes through object beam for received downlink data It is sent to the terminal, so that terminal can establish down data links with the second base station under the auxiliary of first base station, to improve the resource utilization of the second base station, while the load of first base station is also reduced, improves the throughput of terminal.

Eighth aspect, a kind of data transmission method, applied to the communication system including first base station and the second base station, this method comprises:

The first base station receives the metrical information that terminal reports, and the metrical information is what the terminal measured the reference signal on the different beams of second base station；

The metrical information is sent to network node by the first base station, so that the network node, which is determined according to the metrical information in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, the network node is center node or second base station, the central node is connect with core net, and the first base station and second base station are communicated by the central node.

Wherein, the metrical information is referring specifically to the associated description in first aspect, and details are not described herein again.

In a kind of possible embodiment, the method also includes: some or all of described terminal is carried information by the first base station, is sent to second base station, the carrying information is used to indicate second base station and establishes respective carrier.

In a kind of possible embodiment, after the metrical information is sent to network node by the first base station, the method also includes:

The first base station receives the information for the object beam that the network node is sent；

9th aspect, a kind of data transmission method, applied to the communication system including first base station and the second base station, this method comprises:

Second base station is carried out data transmission by the object beam with the terminal.

In a kind of possible embodiment, the method also includes: second base station receives some or all of described terminal that network node is sent carrying information, wherein, the network node is the first base station or central node, the central node is connect with core net, and the first base station and second base It stands and is communicated by the central node；According to the carrying information, corresponding carrying is established；And the corresponding data of the carrying are obtained from core net；

Second base station is carried out data transmission by the object beam with the terminal, comprising: second base station is sent to the terminal by the object beam, by the corresponding data of the carrying.

In a kind of possible embodiment, second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

Second base station receives the information for the object beam that central node is sent and the identification information of the terminal, to obtain the object beam, wherein, the central node is connect with core net, and the first base station and second base station are communicated by the central node.

In a kind of possible embodiment, second base station obtains before the object beam that can service the terminal for having accessed the first base station in the wave beam of second base station, this method further include: second base station receives the metrical information that the network node is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station, the network node is the first base station or central node, the central node is connect with core net, and the first base station and second base station are communicated by the central node；

Tenth aspect, a kind of data transmission method, applied to including first base station, the communication system of the second base station and central node, wherein, the central node is connect with core net, is communicated between the first base station and second base station by the central node, this method comprises:

The central node receives the metrical information that the first base station is sent, and the metrical information is what the terminal measured the reference signal on the different beams of second base station；

For the central node according to the metrical information, the object beam for having accessed the terminal of the first base station can be serviced by determining in the wave beam of second base station；

The information of the object beam is sent to second base station by the central node.

In a kind of possible embodiment, the method also includes: the information of the object beam is sent to the first base station by the central node.

On the one hand tenth, provides a kind of base station, applied to the communication system including the base station and the second base station, the base station includes the module for executing the method in eighth aspect.

12nd aspect, provides a kind of base station, and applied to the communication system including first base station and the base station, the base station includes the module for executing the method in the 9th aspect.

13rd aspect, provide a kind of central node, applied to including first base station, the communication system of the second base station and central node, the central node is connect with core net, it is communicated between the first base station and second base station by the central node, the central node includes the module for executing the method in the tenth aspect.

Fourteenth aspect provides a kind of base station, and applied to the communication system including the base station and the second base station, the base station includes processor, first transceiver, second transceiver, communication interface and system bus.Wherein: the processor, the first transceiver and the second transceiver execute method described in eighth aspect.

15th aspect, provides a kind of base station, applied to the communication system including the base station and the second base station, the base station includes processor, first transceiver, second transceiver, communication interface and system bus.Wherein: the processor, the first transceiver and the second transceiver execute method described in the 9th aspect.

16th aspect, provide a kind of central node, applied to including first base station, the communication system of the second base station and central node, the central node is connect with core net, it is communicated between the first base station and second base station by the central node, the central node includes processor, transceiver, communication interface and system bus.Wherein: the processor and the transceiver execute method described in the tenth aspect.

In the embodiment of the present invention, after first base station receives the metrical information that terminal reports, the metrical information is sent to network node (i.e. the second base station or central node), so that the network node, which is determined according to the metrical information in the wave beam of second base station, can service the terminal for having accessed the first base station Object beam, so that the second base station be enable to carry out data transmission with terminal by the object beam.It is transmitted since some or all of terminal business in first base station can be transferred to the second base station by first base station, improves the resource utilization of the second base station, while also reducing the load of first base station, improve the throughput of terminal.

Detailed description of the invention

Fig. 1 is the network architecture schematic diagram in high frequency small station and low frequency macro station；

Fig. 2 is a kind of schematic diagram of the data transmission method of first base station side provided in an embodiment of the present invention；

Fig. 3 is the schematic diagram that the second base station provided in an embodiment of the present invention uses the first beam modes；

Fig. 4 is the schematic diagram that the second base station provided in an embodiment of the present invention uses the second beam modes；

Fig. 5 is the schematic diagram of first base station provided in an embodiment of the present invention and the second base station co-sited；

Fig. 6 is a kind of schematic diagram of the data transmission method of second base station side provided in an embodiment of the present invention；

Fig. 7 is the schematic diagram of the first base station provided in an embodiment of the present invention；

Fig. 8 is the schematic diagram of second of base station provided in an embodiment of the present invention；

Fig. 9 is the schematic diagram of the third base station provided in an embodiment of the present invention；

Figure 10 is the schematic diagram of the 4th kind of base station provided in an embodiment of the present invention；

Figure 11 is the schematic diagram of communication system provided in an embodiment of the present invention；

Figure 12 is a kind of schematic diagram of the data transmission method of first base station side provided in an embodiment of the present invention；

Figure 13 A is the schematic diagram of the first network architecture provided in an embodiment of the present invention；

Figure 13 B is the schematic diagram of second of network architecture provided in an embodiment of the present invention；

Figure 14 is a kind of schematic diagram of the data transmission method of second base station side provided in an embodiment of the present invention；

Figure 15 is a kind of schematic diagram of the data transmission method of central node side provided in an embodiment of the present invention；

Figure 16 is the schematic diagram of the first central node provided in an embodiment of the present invention；

Figure 17 is the schematic diagram of second of central node provided in an embodiment of the present invention.

Specific embodiment

The techniques described herein may be used in various communication systems, such as current 2G, 3G, 4G communication systems 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 (Frequency Division Multiple Addressin G, 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) system and other such communication systems.

It is macro base station that the embodiment of the present invention, which can be adapted for first base station, second base station is the networking structure in small station, and being readily applicable to first base station is macro base station, and the second base station is the networking structure of macro base station, can be applicable to first base station is small station, and the second base station is the networking structure in small station.The embodiment of the present invention is not defined applicable networking structure.

Wherein, macro base 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), the embodiment of the present invention is without limitation.

Small station includes but is not limited to following several: micro-base station (Micro), femto base station (Pico) and Home eNodeB (Femto, also referred to as femto base station), the embodiment of the present invention is without limitation.

Terminal in the embodiment of the present invention can be wireless terminal and be also possible to catv terminal, wireless terminal can be directed to user and provide the equipment of voice and/or data connectivity, have the handheld device of wireless connecting function or be connected to other processing equipments of radio modem.Wireless terminal can be communicated through wireless access network (such as RAN (Radio Access Network)) with one or more core nets；Wireless terminal can be mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, such as, can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.Such as, personal communication service (Personal Communication Service, PCS) phone, wireless phone, Session initiation Protocol (SIP) phone, wireless local loop (Wireless Local Loop, WLL) are stood, personal digital assistant (Personal Digital Assistant, PDA) etc. equipment.

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, introduces the unified concept with communication system in the embodiment of the present invention.

The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.It should be appreciated that embodiment described herein is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.

The embodiment of the invention provides a kind of data transmission methods of first base station side, applied to the communication system including first base station and the second base station, as shown in Fig. 2, this method comprises:

S21, the first base station, which obtain in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

Some or all of terminal downlink data is sent to second base station by S22, the first base station, so that received downlink data is sent to the terminal by the object beam by second base station.

Wherein, the downlink data of the terminal refers to that the first base station needs to be sent to the data of the terminal.

In the embodiment of the present invention, the object beam for having accessed the terminal of the first base station can be serviced in the wave beam of the second base station of first base station acquisition；By some or all of terminal downlink data, it is sent to the second base station, so that received downlink data is sent to the terminal by object beam by the second base station, to under the auxiliary of first base station, terminal can establish down data links with the second base station, to improve the resource utilization of the second base station, while the load of first base station is also reduced, improves the throughput of terminal.

In the embodiment of the present invention, the quantity for the object beam that first base station acquires can be one, be also possible to two or more, and the embodiment of the present invention is not defined the quantity of object beam.

In the embodiment of the present invention, first base station described in S21 obtains the object beam, including following optional implementation:

The metrical information that mode 1, the first base station are reported based on the terminal, determines the object beam；Wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station.

Under which, method provided in an embodiment of the present invention further include: the identification information of the information of the object beam and the terminal is sent to second base station by the first base station.

For example, the metrical information that the first base station is reported based on the terminal, determines the object beam, comprising:

The first base station is from the metrical information that the terminal reports, the top-quality wave beam of selection signal, and selected wave beam is determined as the object beam.

Wherein, signal quality can by but at least one of be not limited to following information 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 (Recesived Signal Strength Indication, RSSI).

For example, the information of the object beam can be the identification information of the corresponding port of the object beam if second base station forms multiple wave beams using the fixation of the first beam modes；If second base station is using different wave beams is formed in the second beam modes in different times section, the information of the object beam can be the corresponding time interval of the object beam；If second base station forms different wave beams in section in different times using the second beam modes, and second base station contains at least two port, then the information of the object beam can be the identification information of the corresponding time interval of the object beam and the corresponding port of the object beam.

Under which, optionally, this method further include: the first base station receives the load information on each wave beam for second base station that second base station is sent.

Accordingly, the metrical information that the first base station is reported according to the terminal, determine the object beam, comprising: the load information on each wave beam of metrical information and second base station that the first base station is reported according to the terminal determines the object beam.

The metrical information of mode 2, the terminal sent by second base station based on the first base station is determined the object beam, and the information of object beam is sent to the first base station.The concrete behavior of the first base station side is as follows:

Before the first base station obtains the object beam, this method comprises: the first base station is by institute The metrical information that terminal reports is stated, second base station is sent to, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The first base station obtains the object beam, comprising: the first base station receives the information for the object beam that second base station is sent, to obtain the object beam.

Based on aforesaid way 1 or mode 2, optionally, method provided in an embodiment of the present invention further include: the first base station receives the information for the beam modes that second base station that second base station is sent uses.

Further, after the first base station receives the information of the beam modes that second base station uses, this method further include:

The information for the beam modes that second base station uses is sent to the terminal by the first base station, to enable the terminal to each wave beam of the beam modes and second base station of knowing that second base station uses, to measure to reference signal.

As a kind of implementation, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: to be used to indicate the information for the corresponding antenna port of each wave beam that the beam modes that second base station uses indicate information and second base station for the first of the first beam modes.

It illustrates, each wave beam that second base station is formed can correspond to an antenna port, can also correspond to a mutiple antennas port, i.e. the corresponding relationship of wave beam and antenna port can be one-to-one, it is also possible to one-to-many, the corresponding relationship of unlimited standing wave beam and antenna port here.

Optionally, the information of the beam modes further include: the quantity of the wave beam of second base station.

Specifically, in first beam modes, second base station has M wave beam, M is positive integer, each wave beam corresponds to a different antenna port of second base station, different reference signals is configured on each wave beam, guarantee that the corresponding reference signal position of each antenna port is different, reference signal uses pseudo-random sequence, antenna port information is obtained by reference to the position of signal and pseudo-random sequence when terminal measures, reference signal is measured in the antenna port and obtains signal strength or signal quality, as shown in Figure 3.

As another implementation, if second base station is using different wave beams is formed in the second beam modes in different times section, the information of the beam modes includes: to be used to indicate second base station The beam modes used is the second indication information of the second beam modes and the information of the corresponding time interval of each wave beam of second base station.

Specifically, when the antenna port quantity of second base station is less, when fixed beam greater than antenna port quantity can not be provided, different wave beams can be formed using the wave beam poll pattern of setting, different wave beams is formed in different time intervals, and different reference signals is configured on each wave beam.For example, being directed to three cells, in each cell serves direction, cycle polling is carried out using wave beam, as shown in Figure 4.Assuming that, in subframe 1 and 2, forming wave beam 1 using a LTE frame length as the period；In subframe 3 and 4, wave beam 2 is formed；And so on.

Optionally, the relevant information of the time interval includes: the corresponding number information of the time interval.

Optionally, if using subframe as minimum time unit, the relevant information of the time interval includes: the information for the subframe for including in the time interval.

For example, the first instruction information and second indication information can be indicated using 1 bit information, the beam modes that second base station uses are indicated if bit information is " 0 " as the first beam modes, i.e., first indicates information；Indicate the beam modes that second base station uses for the second beam modes, i.e. second indication information if bit information is " 1 ".

Based on aforesaid way 1 or mode 2, optionally, method provided in an embodiment of the present invention further include:

The first base station is the reference signal that the terminal is configured to measurement on each wave beam of second base station, and the configuration information of the reference signal is sent to the terminal；Or

The first base station sends configuring request to second base station, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；And the first base station receives second base station and is the configuration information for the reference signal for measurement that the terminal configures on each wave beam of second base station, and the configuration information is sent to the terminal.

Specifically, the reference signal on the different beams of second base station can be configured by the first base station, and configuration information is notified to the terminal；It can also be configured by second base station oneself, and send configuration information to the first base station.

Based on aforesaid way 1 or mode 2, optionally, method provided in an embodiment of the present invention further include: the first base station indicates that the reference signal on the antenna port that the terminal includes to second base station carries out Measurement.

Optionally, the reference signal that the first base station is configured is channel state information reference signals (Channel State Information-Reference Signals, CSI-RS).

Based on aforesaid way 1 or mode 2, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer.

Wherein it is possible to the value of N be set as needed, such as the value of N is configured to 3.

Based on aforesaid way 1 or mode 2, if second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

Aforesaid way 1 and mode 2 are suitable for the various deployment way of the first base station and second base station.For example, the deployment way of the first base station and second base station co-sited (co-located)；For another example, the first base station and the non-co-sited deployment way in second base station.

Under the deployment way of the first base station and second base station co-sited, it further includes following optional implementation that first base station described in S21, which obtains the object beam:

Mode 3, the first base station and second base station co-sited (co-located), as shown in figure 5, The first base station and second base station deployment are on same website.Under the scene, it includes the optional implementation of following four that the first base station, which obtains the object beam:

One, the first base station has saved the historical data of the corresponding relationship between different DOA and the wave beam of second base station, the first base station DOA of the terminal currently measured can be compared with the DOA saved, select the wave beam of corresponding second base station the most similar DOA of data as the object beam.Specifically:

The first base station will currently measure the DOA between the obtained terminal and the first base station, compare with the DOA saved；The first base station determines the smallest DOA of the difference of the DOA current with the terminal from the DOA saved, and the corresponding wave beam of the DOA determined is determined as the object beam.

It illustrates, corresponding relationship between different DOA and the wave beam of second base station is the DOA that the first base station once measured any terminal, data link is established by the wave beam 1 of second base station between final any terminal success and second base station, then the first base station saves the corresponding relationship of the DOA of any terminal and the wave beam 1 of second base station.

Two, the first base station has saved the historical data of the corresponding relationship between the different combination formed of path loss information and DOA and the wave beam of second base station, the first base station path loss information of the terminal currently measured and DOA can be compared with the combination saved, from the combination saved, the path loss information and the most similar combination of DOA data of selection and the terminal currently measured, and using the wave beam of corresponding second base station of the combination as the object beam.Specifically:

The first base station will currently measure the path loss information between the obtained terminal and the first base station and DOA, and the combination formed with the every group of path loss information and DOA saved compares；The first base station determines the smallest combination of difference of path loss information and DOA current with the terminal respectively from the combination saved, and the corresponding wave beam of the combination determined is determined as the object beam.

Three, the first base station has saved the historical data of the corresponding relationship between the wave beam of different DOA range and second base station, the first base station DOA of the terminal currently measured can be compared with the DOA range saved, using the wave beam of corresponding second base station of the DOA range where the DOA currently measured as the object beam.Specifically:

The first base station will currently measure the arrival bearing DOA between the obtained terminal and the first base station, and DOA ranges different from what is saved compare；The first base station determines the DOA range where the current DOA of the terminal, and wave beam some or all of in the corresponding wave beam of DOA range determined is determined as the object beam.

It illustrates, if it is determined that the corresponding wave beam of DOA range be at least two, it will be when wave beam be determined as the object beam some or all of in the corresponding wave beam of DOA range that determined, part wave beam therein can be randomly selected as the object beam, the corresponding all wave beams of the DOA range determined can also be determined as the object beam；It also can indicate that the terminal measures the corresponding wave beam of DOA range determined, it is selected based on metrical information of the terminal to the corresponding wave beam of DOA range determined, for example, selecting the maximum wave beam of measured value as described object beam, etc. from metrical information.

Four, the first base station has saved the historical data of the corresponding relationship between different path loss information and the DOA combined range formed and the wave beam of second base station, the first base station path loss information of the terminal currently measured and DOA can be compared with the combined range saved, using the wave beam of corresponding second base station of the combined range where the DOA currently measured as the object beam.Specifically:

The first base station will currently measure the path loss information between the obtained terminal and the first base station and DOA, and the combined range that path loss information different from what is saved and DOA are formed compares；The first base station determines the combined range where the current path loss information of the terminal and DOA, and the corresponding wave beam of combined range determined is determined as the object beam.

Under which, optionally, method provided in an embodiment of the present invention further include: the information of the object beam is sent to second base station by the first base station.

Mode 4, the first base station and second base station co-sited, the first base station obtain the object beam are as follows:

Under which, the first base station will currently measure the DOA between the obtained terminal and the first base station, it is sent to second base station, since the first base station and second base station are co-sited, then the distance between second base station and the terminal and DOA can consider that with the distance between the first base station and the terminal and DOA be identical, therefore, second base station can service the wave beam of the terminal with reference to the DOA between the first base station and the terminal, dynamic formation.

Optionally, the information that the first base station currently measures further includes the path loss information between the terminal and the first base station.

Correspondingly, second base station can service the wave beam of the terminal with reference to the path loss information and DOA between the first base station and the terminal, dynamic formation.

Based on any of the above-described embodiment, method provided in an embodiment of the present invention further include:

The information of the object beam is sent to the terminal by the first base station, in this way, the terminal can be monitored only on the object beam, to receive the downlink data that second base station is sent, without being monitored on each wave beam of second base station.

Based on the same inventive concept, the embodiment of the invention also provides a kind of data transmission methods of second base station side, applied to the communication system including first base station and the second base station, as shown in fig. 6, this method comprises:

S61, second base station, which are obtained in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

S62, second base station receive some or all of the terminal that the first base station is sent downlink data, and the downlink data is sent to the terminal by the object beam.

In an implementation, method provided in an embodiment of the present invention further include:

Optionally, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: to be used to indicate second base station The information for the corresponding antenna port of each wave beam that the beam modes used indicate information and second base station for the first of the first beam modes.

Optionally, if second base station forms different wave beams on section using the second beam modes in different times, the information of the beam modes includes: to be used to indicate beam modes that second base station uses as the second indication information of the second beam modes and the information of the corresponding time interval of each wave beam of second base station.

Optionally, method provided in an embodiment of the present invention further include:

Load information on itself each wave beam is sent to the first base station by second base station.

Specifically, second base station actively can send the load information on itself each wave beam to the first base station, and it can also be after the request for receiving the first base station, Xiang Suoshu first base station sends the load information on itself each wave beam.

When realizing, the load information in the information of beam modes and each wave beam of second base station of second base station use can be carried in a piece of news and be sent to the first base station by second base station；Load information on the configuration information and each wave beam of second base station can also be carried in a piece of news and be sent to the first base station by second base station；Load information on itself each wave beam can also be sent to the first base station by individual signaling message by second base station.

Based on any of the above-described embodiment, as a kind of optional implementation, the second base station described in S61 obtains the object beam, comprising:

As another optional implementation, the second base station described in S61 obtain the object beam it Before, this method further include:

Correspondingly, the second base station described in S61 obtains the object beam, comprising: determine the object beam according to the load information on each wave beam of the metrical information and/or second base station in second base station.

Further, after the second base station described in S61 obtains the object beam, this method further include:

Optionally, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

Optionally, if second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

As another optional implementation, this method further include:

Second base station receives the information that the first base station currently measures, wherein the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

Correspondingly, the second base station described in S61 obtains the object beam, comprising: the antenna weights of second base station are determined according to the information received in second base station, to form the object beam that can service the terminal.

Optionally, the information that the first base station currently measures further include: the path loss information between the terminal and the first base station.

Correspondingly, the antenna weights of second base station are determined according to the path loss information and DOA received in second base station, to form the object beam that can service the terminal.

Further, after the acquisition of the second base station described in the S61 object beam, comprising: the identification information of the information of the object beam and the terminal is sent to the first base station by second base station.

Specifically, since second base station and the first base station are co-sited, second base station can with reference to first base station measurement the first base station and the terminal between path loss information and DOA at least one information, and the antenna weights on second base station are calculated with this.Second base station may need to consider at least one of frequency difference, the difference of antenna spacing and antenna array difference used by itself and the first base station simultaneously, calibrate to obtained antenna weights.Wherein, the antenna weights of second base station are determined according at least one described information in second base station, to form the object beam that can service the terminal.

Above method process flow can realize that the software program can store in storage medium with software program, when the software program of storage is called, execute above method step.

Based on the same inventive concept, the first base station is additionally provided in the embodiment of the present invention, due to the base station determine problem principle it is similar to above-mentioned data transmission method shown in Fig. 2, the implementation of the base station may refer to the implementation of above-mentioned method shown in Fig. 2, and overlaps will not be repeated.

The first base station provided in an embodiment of the present invention, as shown in fig. 7, the base station applies, in the communication system including the base station and the second base station, the base station includes:

Object beam obtains module 71, can service the object beam for having accessed the terminal of the base station in the wave beam for obtaining second base station；

Sending module 72, for second base station being sent to, so that the downlink data is sent to the terminal by the object beam by second base station for some or all of terminal downlink data.

In the embodiment of the present invention, the base station further include:

Receiving module 73, for receiving the information for the beam modes that second base station that second base station is sent uses.

Optionally, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that second base station uses and indicating information and second base station for the first of the first beam modes；

Optionally, the sending module 72 is also used to:

In the embodiment of the present invention, as a kind of configuration mode of optional reference signal, the base station further include:

The configuration information of the reference signal for being configured to the reference signal of measurement on each wave beam of second base station for the terminal, and is sent to the terminal by reference signal configuration module 74.

Configuration mode as another optional reference signal, the sending module 72 is also used to: the second base station Xiang Suoshu sends configuring request, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；The receiving module 73 is also used to: described in reception Second base station is the configuration information for the reference signal for measurement that the terminal configures on all wave beams of second base station；The sending module is also used to: the configuration information is sent to the terminal.

In the embodiment of the present invention, as the first optional object beam acquisition pattern, the object beam obtains module 71 and is specifically used for:

Based on the metrical information that the terminal reports, the object beam is determined, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；Or

As second of optional object beam acquisition pattern, the sending module 72 is also used to: the metrical information that the terminal is reported, it is sent to second base station, wherein the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The receiving module 73 is also used to: the information for the object beam that second base station is sent is received, to obtain the object beam.

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or different time area Between information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.

The base station and second base station co-sited, as the third optional object beam acquisition pattern, the object beam obtains module 71 and is specifically used for:

The arrival bearing DOA between the obtained terminal and the base station will be currently measured, is compared with the DOA saved；And from the DOA saved, the smallest DOA of the difference of the DOA current with the terminal is determined, and the corresponding wave beam of the DOA determined is determined as the object beam；Or

The base station and second base station co-sited, as the 4th kind of optional object beam acquisition pattern,

The sending module 72 is also used to: the information that the base station is currently measured is sent to second base station, wherein the information that the base station currently measures includes at least the DOA between the terminal and the base station；

The receiving module 73 is also used to: receiving the information for the object beam that second base station that second base station is sent is formed；

The object beam obtains module 71 and is specifically used for: determining the corresponding object beam of the information of the object beam.

It is also used to based on the first above-mentioned optional object beam acquisition pattern or the third optional object beam acquisition pattern, the sending module 72:

Based on any of the above-described embodiment, the sending module 72 is also used to:

The information of the object beam is sent to the terminal.

Based on the same inventive concept, second of base station is additionally provided in the embodiment of the present invention, due to the base station determine problem principle it is similar to above-mentioned data transmission method shown in fig. 6, the implementation of the base station may refer to the implementation of above-mentioned method shown in fig. 6, and overlaps will not be repeated.

The embodiment of the invention provides second of base stations, applied to the communication system including first base station and the base station, as shown in figure 8, the base station includes:

Object beam obtains module 81, can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining the base station；

Receiving module 82, some or all of described terminal for receiving first base station transmission downlink data；

Sending module 83, for the downlink data to be sent to the terminal by the object beam.

In the embodiment of the present invention, the sending module 83 is also used to:

Optionally, if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: the corresponding antenna port information of each wave beam for being used to indicate the beam modes that the base station uses and indicating information and the base station for the first of the first beam modes；

If the base station forms different wave beams on section using the second beam modes in different times, the information of the beam modes includes: to be used to indicate beam modes that the base station uses as the second beam modes Second indication information and the base station the corresponding time interval of each wave beam information.

Optionally, the sending module 83 is also used to:

Based on any of the above-described embodiment, the base station further include: reference signal configuration module 84, for the reference signal of measurement to be configured on each wave beam of second base station for the terminal after the configuring request that the receiving module 82 receives that the first base station is sent；The sending module 83 is also used to: by the configuration information of the reference signal, being sent to the first base station；

Or

The receiving module 82 is also used to: receiving the configuration information that the first base station that the first base station is sent is the reference signal for measurement that the terminal configures on each wave beam of second base station.

In the embodiment of the present invention, as the first optional object beam acquisition pattern, the receiving module 82 is also used to:

As second of optional object beam acquisition pattern, the receiving module 82 is also used to: receiving the metrical information that the first base station is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The object beam obtains module 81 and is specifically used for: according to the load information on each wave beam of the metrical information and/or second base station, determining the object beam.

As the third optional object beam acquisition pattern, the receiving module 82 is also used to: receiving the information that the first base station currently measures, wherein, the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

The object beam obtains module 81 and is specifically used for: according to the information received, the antenna weights of the base station is determined, to form the object beam that can service the terminal.

Correspondingly, the object beam obtains module 81 according to the path loss information and DOA received, really The antenna weights of the base station are made, to form the object beam that can service the terminal.

Based on above-mentioned second or the third optional object beam acquisition pattern, the sending module 83 are also used to:

Optionally, if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It should be noted that, the module that Fig. 7 and base station shown in Fig. 8 include can be set in a base station, when the base station is the first base station, triggering object beam obtains module 71, receiving module 73, sending module 72 and reference signal configuration module 74 and executes processing；When the base station is second base station, triggering object beam obtains module 81, receiving module 82, sending module 83 and reference signal configuration module 84 and executes processing.

Based on the same inventive concept, the third base station is additionally provided in the embodiment of the present invention, due to the base station Certainly the principle of problem is similar to above-mentioned data transmission method shown in Fig. 2, therefore the implementation of the base station may refer to the implementation of above-mentioned method shown in Fig. 2, and overlaps will not be repeated.

The third base station provided in an embodiment of the present invention, as shown in figure 9, the base station applies, in the communication system including the base station and the second base station, the base station includes:

Processor 91, first transceiver 92, second transceiver 93, communication interface 94 and system bus 95.Wherein:

It is connected between the processor 91 and communication interface 94 by the system bus 95 and completes mutual communication.The processor 91 can be a central processing unit (Central Processing Unit, CPU), either specific integrated circuit (Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.

The communication interface 94 with other communication equipments for interacting.

The first transceiver 92 with other base stations (such as the second base station) for carrying out data transmission.

The second transceiver 93 with terminal for carrying out data transmission.

It is appreciated that first transceiver 92 and second transceiver 93 can be two independent transceivers, also can integrate in an information transceiving device, the embodiment of the present invention is not specially limited this.

When base station operation, the processor 91, first transceiver 92 and second transceiver 93 can execute method flow described in Fig. 2, specifically include:

The processor 91 can service the object beam for having accessed the terminal of the base station in the wave beam for obtaining second base station；

The first transceiver 92, for second base station being sent to, so that the downlink data is sent to the terminal by the object beam by second base station for some or all of terminal downlink data.

In the embodiment of the present invention, the first transceiver 92 is also used to:

Optionally, if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the information of the beam modes includes: to be used to indicate the beam modes that second base station uses to indicate each of information and second base station for the first of the first beam modes The corresponding antenna port information of wave beam；

Optionally, the information of the second transceiver 93, the beam modes for using second base station received is sent to the terminal.

In the embodiment of the present invention, as a kind of configuration mode of optional reference signal, the processor 91 is also used to:

The reference signal of measurement is configured on each wave beam of second base station for the terminal, and the configuration information of the reference signal is sent to the terminal.

Configuration mode as another optional reference signal, the first transceiver 92 is also used to: the second base station Xiang Suoshu sends configuring request, is the reference signal that the terminal is configured to measurement on each wave beam of second base station to request second base station；Receive the configuration information that second base station is the reference signal for measurement that the terminal configures on all wave beams of second base station；The second transceiver 93 is also used to: the configuration information is sent to the terminal.

In the embodiment of the present invention, as the first optional object beam acquisition pattern, the processor 91 is specifically used for:

As second of optional object beam acquisition pattern, the first transceiver 92 is also used to: the metrical information that the terminal that the second transceiver 93 receives is reported, it is sent to second base station, wherein, the metrical information be the terminal to the reference signal on each wave beam of second base station into Row measurement obtains；The information for the object beam that second base station is sent is received, to obtain the object beam.

The base station and second base station co-sited, as the third optional object beam acquisition pattern, the processor 91 is specifically used for:

The arrival bearing DOA between the obtained terminal and the base station will be currently measured, DOA ranges different from what is saved compare；And determine DOA where the current DOA of the terminal Range, and wave beam some or all of in the corresponding wave beam of DOA range determined is determined as the object beam；Or

The first transceiver 92 is also used to: the information that the base station is currently measured is sent to second base station, wherein the information that the base station currently measures includes at least the DOA between the terminal and the base station；Receive the information for the object beam that second base station that second base station is sent is formed；

The processor 91 is specifically used for: determining the corresponding object beam of the information of the object beam.

Optionally, the information that the base station currently measures further includes the path loss information between the terminal and the base station.

It is also used to based on the first above-mentioned optional object beam acquisition pattern or the third optional object beam acquisition pattern, the first transceiver 92:

Based on any of the above-described embodiment, the second transceiver 93 is also used to:

The information of the object beam is sent to the terminal.

Based on the same inventive concept, the 4th kind of base station is additionally provided in the embodiment of the present invention, due to the base station determine problem principle it is similar to above-mentioned data transmission method shown in fig. 6, the implementation of the base station may refer to the implementation of above-mentioned method shown in fig. 6, and overlaps will not be repeated.

The embodiment of the invention provides the 4th kind of base station, applied to including the logical of first base station and the base station Letter system, as shown in Figure 10, the base station includes:

Processor 101, first transceiver 102, second transceiver 103, communication interface 104 and system bus 105.Wherein:

It is connected between the processor 101 and communication interface 104 by the system bus 105 and completes mutual communication.The processor 101 can be a central processing unit (Central Processing Unit, CPU), either specific integrated circuit (Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.

The communication interface 104 with other communication equipments for interacting.

The first transceiver 102 with other base stations (such as the second base station) for carrying out data transmission.

The second transceiver 103 with terminal for carrying out data transmission.

When base station operation, the processor 101, first transceiver 102 and second transceiver 103 can execute method flow described in Fig. 6, specifically include:

The processor 101 can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining the base station；

The first transceiver 102, some or all of described terminal for receiving first base station transmission downlink data；

The second transceiver 103, for the downlink data to be sent to the terminal by the object beam.

In the embodiment of the present invention, the first transceiver 102 is also used to:

Optionally, the first transceiver 102 is also used to:

Based on any of the above-described embodiment, the processor 101 is also used to: after the configuring request that the first transceiver 102 receives that the first base station is sent, being configured to the reference signal of measurement on each wave beam of second base station for the terminal；The first transceiver 102 is also used to: by the configuration information of the reference signal, being sent to the first base station；

Or

The first transceiver 102 is also used to: receiving the configuration information that the first base station that the first base station is sent is the reference signal for measurement that the terminal configures on each wave beam of second base station.

In the embodiment of the present invention, as the first optional object beam acquisition pattern, the first transceiver 102 is also used to:

As second of optional object beam acquisition pattern, the first transceiver 102 is also used to: receiving the metrical information that the first base station is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station；

The processor 101 is specifically used for: according to the load information on each wave beam of the metrical information and/or second base station, determining the object beam.

As the third optional object beam acquisition pattern, the first transceiver 102 is also used to: receiving the information that the first base station currently measures, wherein, the information that the first base station currently measures includes at least the DOA between the terminal and the first base station；

The processor 101 is specifically used for: according to the information received, the antenna weights of the base station is determined, to form the object beam that can service the terminal.

Correspondingly, the processor 101 determines the base according to the path loss information and DOA that receive The antenna weights stood, to form the object beam that can service the terminal.

Based on above-mentioned second or the third optional object beam acquisition pattern, the first transceiver 102 are also used to:

It should be noted that the module that Fig. 9 and base station shown in Fig. 10 include can be set in a base station, when the base station is the first base station, triggering processor 91, first transceiver 92 and second transceiver 93 execute processing；When the base station is second base station, triggering processor 101, first transceiver 102 and second transceiver 103 execute processing.

It should be noted that the module that Fig. 9 and base station shown in Fig. 10 include can be set in a base station, when the base station is the first base station, processor 91, first transceiver 92 and second are triggered Transceiver 93 executes processing；When the base station is second base station, triggering processor 101, first transceiver 102 and second transceiver 103 execute processing.

Based on the same inventive concept, the embodiment of the invention also provides a kind of communication systems, as shown in figure 11, comprising:

First base station 111 can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining second base station；By some or all of terminal downlink data, it is sent to second base station, so that the downlink data is sent to the terminal by the object beam by second base station；

Second base station 112 can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining second base station；Some or all of the terminal that the first base station is sent downlink data is received, and the downlink data is sent to the terminal by the object beam.

Wherein, the first base station 111 can be base station as shown in Figure 7, or base station as shown in Figure 9；The first base station 112 can be base station as shown in Figure 8, or base station as shown in Figure 10.The related content of other embodiments of the invention is referred to first base station 111, the detailed description of first base station 112, this will not be repeated here.

In embodiment illustrated in fig. 12, a kind of data transmission method of first base station side is provided, applied to the communication system including first base station and the second base station, as shown in figure 12, this method comprises:

S21, the first base station receive the metrical information that terminal reports, and the metrical information is what the terminal measured the reference signal on the different beams of second base station；

Specifically, the information of the object beam can be the identification information of the corresponding port of the object beam if second base station forms multiple wave beams using the fixation of the first beam modes；If second base station is using different wave beams is formed in the second beam modes in different times section, the information of the object beam can be the corresponding time interval of the object beam；If second base station forms different wave beams in section in different times using the second beam modes, and second base station contains at least two port, then the information of the object beam can be the identification information of the corresponding time interval of the object beam and the corresponding port of the object beam.

The metrical information is sent to network node by S22, the first base station, so that the network node The object beam for having accessed the terminal of the first base station can be serviced by being determined according to the metrical information in the wave beam of second base station, the network node is center node or second base station, the central node is connect with core net, and the first base station and second base station are communicated by the central node.

In the embodiment of the present invention, after first base station receives the metrical information that terminal reports, the metrical information is sent to network node, so that the network node, which is determined according to the metrical information in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, so that the second base station be enable to carry out data transmission with terminal by the object beam.It is transmitted since some or all of terminal business in first base station can be transferred to the second base station by first base station, improves the resource utilization of the second base station, while also reducing the load of first base station, improve the throughput of terminal.

The network architecture of application of the embodiment of the present invention is different, and the implementation that first base station described in S21 obtains the object beam specifically includes the possible implementation of following two:

Mode one, the network architecture of which application are as shown in FIG. 13A, and first base station and the second base station are connect with core net respectively, and there are interfaces between first base station and the second base station, can access first base station with direct communication, terminal.

In which, object beam is determined by the second base station.

In which, the concrete behavior of the first base station side is as follows: the metrical information that the first base station reports the terminal is sent to second base station.

Optionally, the information of object beam is sent to first base station by the second base station.

Correspondingly, the first base station receives the information for the object beam that second base station is sent；And

The information of object beam is sent to the terminal by the first base station, so that the terminal can be monitored only on the object beam, to receive the downlink data that second base station is sent.

In which, the metrical information that second base station is sent based on the first base station determines the object beam.

In a kind of possible implementation, from the metrical information that the first base station is sent, the top-quality wave beam of selection signal is determined as the object beam for second base station；Or second base station is from institute In the metrical information for stating first base station transmission, the wave beam that selection signal quality meets given threshold is determined as the object beam.

RSRP、RSRQ、CQI、RSSI。

In alternatively possible implementation, load information on each wave beam of metrical information and second base station that second base station is sent according to the first base station determines the object beam.

For example, the second base station selection signal quality meets the threshold value of setting and the smallest wave beam of load is determined as the object beam.For another example, the wave beam for the threshold value that the second base station selection signal quality meets the threshold value of setting and load meets setting is determined as described object beam, etc..

Mode two, the network architecture of which application are as shown in Figure 13 B, that is central node (Central Unit, CU) --- distribution node (Distributed Unit, DU) framework, the first DU in Figure 13 B is the first base station, and the 2nd DU is second base station, first DU and the 2nd DU are connect with CU respectively, CU is connect with core net, and the first DU and the 2nd DU are carried out data transmission by CU, and terminal has accessed the first DU.In which, object beam is determined by central node, and the information of object beam is sent to the second base station.

In which, the concrete behavior of the first base station side is as follows:

The metrical information that the first base station reports the terminal is sent to the central node, so that the central node determines the object beam according to the metrical information.

Optionally, after the central node determines the object beam, the method also includes:

The information of object beam is sent to the first base station by the central node.

Correspondingly, the first base station receives the information for the object beam that the central node is sent；And

In which, the metrical information that the central node is sent based on the first base station determines the object beam, and concrete processing procedure can be found in the implementation that the second base station in mode one determines object beam.

Based on aforesaid way one or mode two, the metrical information in the embodiment of the present invention is referring specifically to the associated description in embodiment illustrated in fig. 2, and details are not described herein again.

Based on aforesaid way one or mode two, optionally, the method also includes: the first base station connects Receive the information for the beam modes that second base station that second base station is sent uses.

Wherein, the information of the beam modes is referring specifically to the associated description in embodiment illustrated in fig. 2, and details are not described herein again.

Based on aforesaid way one or mode two, optionally, method provided in an embodiment of the present invention further include:

Referring specifically to the associated description in embodiment illustrated in fig. 2, details are not described herein again.

Based on aforesaid way one or mode two, optionally, method provided in an embodiment of the present invention further include: the first base station indicates that the reference signal on the antenna port that the terminal includes to second base station measures.Referring specifically to the associated description in embodiment illustrated in fig. 2, details are not described herein again.

Aforesaid way one and mode two are suitable for the various deployment way of the first base station and second base station.For example, the deployment way of the first base station and second base station co-sited (co-located)；For another example, the first base station and the non-co-sited deployment way in second base station.

Some or all of described terminal is carried information by the first base station, is sent to second base station, the carrying information is used to indicate second base station and establishes respective carrier.

Specifically, the first base station will directly be used for transmission some or all of described terminal carrying information if being applied to the network architecture shown in Figure 13 A, it is sent to second base station；If being applied to Figure 13 B Shown in the network architecture, some or all of described terminal is carried information by central node (CU) by the first base station, it is sent to second base station, some or all of described terminal carrying information is sent to the central node by the i.e. described first base station, then some or all of described terminal carrying information is transmitted to second base station by the central node.

In the embodiment of the present invention, the carrying information includes but is not limited to following information:

Load identification, bearer QoS parameters and Tunnel End Point Identifier (tunnel point ID).Wherein, if being applied to the network architecture shown in Figure 13 A, the Tunnel End Point Identifier is the Endpoint ID to the tunnel of core net；If being applied to the network architecture shown in Figure 13 B, the Tunnel End Point Identifier is the Endpoint ID to the tunnel of central node.

Based on any of the above-described embodiment, if being applied to the network architecture shown in Figure 13 A, there are interfaces between the first base station and second base station, can be with direct communication；If being applied to the network architecture shown in Figure 13 B, interface is not present between the first base station and second base station, needs to be communicated by central node.

In embodiment illustrated in fig. 14, provide a kind of data transmission method of second base station side, applied to the communication system including first base station and the second base station, in the present embodiment with part identical in embodiment illustrated in fig. 12, associated description in embodiment shown in Figure 12, details are not described herein again.This method comprises:

S141, second base station, which are obtained in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

S142, second base station are carried out data transmission by the object beam with the terminal.

In the embodiment of the present invention, second base station, which obtains, can service the object beam for having accessed the terminal of first base station in the wave beam of second base station, and carried out data transmission by the object beam and the terminal, to under the auxiliary of first base station, some or all of terminal business in first base station is transferred to the second base station to transmit, the resource utilization of the second base station is improved, while also reducing the load of first base station, improves the throughput of terminal.

In an implementation, method provided in an embodiment of the present invention further include: second base station sends the information for the beam modes that second base station uses to the first base station.

Based on any of the above-described embodiment, as a kind of optional implementation, the second base station described in S141 obtains the object beam, comprising:

Second base station receives the information for the object beam that central node is sent, to obtain the object beam.

As another optional implementation, before the second base station described in S141 obtains the object beam, this method further include:

Correspondingly, the second base station described in S141 obtains the object beam, comprising: determine the object beam according to the load information on each wave beam of the metrical information and/or second base station in second base station.Referring specifically to the associated description in embodiment illustrated in fig. 12, details are not described herein again.

Further, after the second base station described in S141 obtains the object beam, this method further include:

The identification information of the information of the object beam and the terminal is sent to the first base station by second base station, so that the first base station notifies the information of the object beam to the terminal.

In the embodiment of the present invention, the metrical information is referring specifically to the associated description in embodiment illustrated in fig. 2, and details are not described herein again.

Based on any of the above-described embodiment, the method also includes: second base station receives some or all of described terminal that network node is sent carrying information；According to the carrying information, corresponding carrying is established；And the corresponding data of the carrying are obtained from core net.It is specific:

If one, being applied to the network architecture shown in Figure 13 A, specifically:

Second base station receives some or all of described terminal that the first base station is sent carrying information；

Second base station is corresponding with core net foundation to carry corresponding tunnel according to the carrying information；

Second base station obtains the corresponding data of the carrying from core net.

Correspondingly, second base station is carried out data transmission by the object beam and the terminal, comprising: second base station is sent to the terminal by the object beam, by the corresponding data of the carrying.

If two, being applied to the network architecture shown in Figure 13 B, specifically:

Second base station receives some or all of described terminal that the central node is sent carrying information；

Second base station is corresponding with central node foundation to carry corresponding tunnel according to the carrying information；

Second base station obtains the corresponding data of the carrying by the central node, from core net.

In the embodiment of the present invention, the carrying information is referring specifically to the associated description in embodiment illustrated in fig. 12, and details are not described herein again.

In embodiment illustrated in fig. 15, provide a kind of data transmission method of central node side, applied to including first base station, the communication system of the second base station and central node, wherein, the central node is connect with core net, it is communicated between the first base station and second base station by the central node, this method comprises:

S151, the central node receive the metrical information that the first base station is sent, and the metrical information is referring specifically to the associated description in embodiment illustrated in fig. 12, and details are not described herein again.

According to the metrical information, the object beam for having accessed the terminal of the first base station can be serviced by determining in the wave beam of second base station for S152, the central node；

Since the central node determines that the mode of the object beam determines that the mode of the object beam is similar with the second base station described in embodiment illustrated in fig. 12, referring specifically to the associated description in embodiment illustrated in fig. 12, details are not described herein again.

The information of the object beam is sent to second base station by S153, the central node.

Optionally, the method also includes: the information of the object beam is sent to the first base station by the central node.

Based on the same inventive concept, a kind of possible implementation of the corresponding device of embodiment illustrated in fig. 12 is as shown in Figure 7, wherein, the receiving module 73 and the sending module 72 are also used to execute the method in embodiment illustrated in fig. 12, referring specifically to the associated description in embodiment illustrated in fig. 12, details are not described herein again.

The alternatively possible implementation of the corresponding device of embodiment illustrated in fig. 12 is as shown in Figure 9, wherein, the processor 91, the first transceiver 92 and the second transceiver 93 are also used to execute the method in embodiment illustrated in fig. 12, referring specifically to the associated description in embodiment illustrated in fig. 12, details are not described herein again.

Based on the same inventive concept, a kind of possible implementation of the corresponding device of embodiment illustrated in fig. 14 is as shown in Figure 8, wherein the object beam obtains module 81 and also executes the method in embodiment illustrated in fig. 14, referring specifically to the associated description in embodiment illustrated in fig. 14, details are not described herein again.

Optionally, device shown in Fig. 8 further include:

Data transmission module, for carrying out data transmission with the terminal by the object beam.

Optionally, device shown in Fig. 8 further include:

Module is established in carrying, some or all of described terminal for receiving network node transmission carrying information, wherein the network node is the first base station or central node, and the central node is connect with core net, the first base station and the base station respectively；According to the carrying information, corresponding carrying is established；And the corresponding data of the carrying are obtained from core net.

Correspondingly, the data transmission module is specifically used for: by the object beam, the corresponding data of the carrying being sent to the terminal.

The alternatively possible implementation of the corresponding device of embodiment illustrated in fig. 14 is as shown in Figure 10, wherein, the processor, the first transceiver 102 and the second transceiver 103 also execute the method in embodiment illustrated in fig. 14, referring specifically to the associated description in embodiment illustrated in fig. 14, details are not described herein again.

Based on the same inventive concept, in embodiment shown in Figure 16, a kind of central node is provided, is applied In including first base station, the communication system of the second base station and the central node, the central node is connect with core net, and is communicated between the first base station and second base station by the central node, and the central node includes:

Receiving module 161, the metrical information sent for receiving the first base station, wherein the associated description in the metrical information embodiment shown in Figure 12, details are not described herein again；

Determining module 162, for according to the metrical information, the object beam for having accessed the terminal of the first base station can be serviced by determining in the wave beam of second base station；Since the determining module 162 determines that the mode of the object beam determines that the mode of the object beam is similar with the second base station described in embodiment illustrated in fig. 12, referring specifically to the associated description in embodiment illustrated in fig. 12, details are not described herein again；

Sending module 163, for the information of the object beam to be sent to second base station.

Optionally, the sending module 163 is also used to: the information of the object beam is sent to the first base station.

In embodiment illustrated in fig. 17, another central node, including processor 171, transceiver 172, communication interface 173 and system bus 174 are provided.

Wherein, it is connected between the processor 171 and communication interface 173 by the system bus 174 and completes mutual communication.The processor 171 can be a CPU or ASIC, or be arranged to implement one or more integrated circuits of the embodiment of the present invention.

The communication interface 173 with other communication equipments for interacting.

The transceiver 172 with other network nodes (such as first base station, the second base station) for carrying out data transmission.

When central node operation, the processor 171 and the transceiver 172 can execute method flow described in Figure 15.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program product.Therefore, the form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention.Moreover, the form for the computer program product implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) that one or more wherein includes computer usable program code can be used in the present invention.

The present invention be referring to according to the method for the embodiment of the present invention, the flowchart and/or the block diagram of equipment (system) and computer program product describes.It should be understood that the combination of process and/or box in each flow and/or block and flowchart and/or the block diagram that can be realized by computer program instructions in flowchart and/or the block diagram.These computer program instructions be can provide to the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate a machine, so that generating by the instruction that computer or the processor of other programmable data processing devices execute for realizing the device for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, to be able to guide in computer or other programmable data processing devices computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates the manufacture including command device, which realizes the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that series of operation steps are executed on a computer or other programmable device to generate computer implemented processing, thus the step of instruction executed on a computer or other programmable device is provided for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

Although preferred embodiments of the present invention have been described, once a person skilled in the art knows basic creative concepts, then additional changes and modifications may be made to these embodiments.So it includes preferred embodiment and all change and modification for falling into the scope of the invention that the following claims are intended to be interpreted as.

Obviously, those skilled in the art various changes and modifications can be made to the invention without departing from the spirit and scope of the present invention.If then the present invention is also intended to include these modifications and variations in this way, these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology.

Claims

A kind of data transmission method, which is characterized in that applied to the communication system including first base station and the second base station, this method comprises:

The first base station receives the metrical information that terminal reports, and the metrical information is what the terminal measured the reference signal on the different beams of second base station；

The metrical information is sent to network node by the first base station, so that the network node, which is determined according to the metrical information in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, the network node is center node or second base station, the central node is connect with core net, and the first base station and second base station are communicated by the central node.
The method as described in claim 1, which is characterized in that the method also includes:

Some or all of described terminal is carried information by the first base station, is sent to second base station, the carrying information is used to indicate second base station and establishes respective carrier.
The method as described in claim 1, which is characterized in that after the metrical information is sent to network node by the first base station, the method also includes:

The first base station receives the information for the object beam that the network node is sent；

The information of the object beam is sent to the terminal by the first base station.
Method as claimed in any one of claims 1 to 3, which is characterized in that if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station forms different waves in section in different times using the second beam modes Beam, the metrical information include:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or the information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.
A kind of data transmission method, which is characterized in that applied to the communication system including first base station and the second base station, this method comprises:

Second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station；

Second base station is carried out data transmission by the object beam with the terminal.
Method as claimed in claim 5, it is characterized in that, the method also includes: second base station receives some or all of described terminal that network node is sent carrying information, wherein, the network node is the first base station or central node, the central node is connect with core net, and the first base station and second base station are communicated by the central node；According to the carrying information, corresponding carrying is established；And the corresponding data of the carrying are obtained from core net；

Second base station is carried out data transmission by the object beam with the terminal, comprising: second base station is sent to the terminal by the object beam, by the corresponding data of the carrying.
Such as method described in claim 5 or 6, which is characterized in that second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, comprising:

Second base station receives the information for the object beam that central node is sent and the identification information of the terminal, to obtain the object beam, wherein, the central node is connect with core net, and the first base station and second base station are communicated by the central node.
Such as method described in claim 5 or 6, which is characterized in that, should before second base station obtains the object beam that can service the terminal for having accessed the first base station in the wave beam of second base station Method further include: second base station receives the metrical information that the network node is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of second base station, the network node is the first base station or central node, the central node is connect with core net, and the first base station and second base station are communicated by the central node；

Second base station, which obtains in the wave beam of second base station, can service the object beam for having accessed the terminal of the first base station, include: second base station according to the load information on each wave beam of the metrical information and/or second base station, determines the object beam.
Method according to claim 8, which is characterized in that if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or the information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.
A kind of data transmission method, which is characterized in that applied to including first base station, the communication system of the second base station and central node, wherein the central node is connect with core net, the first base station It is communicated between second base station by the central node, this method comprises:

The central node receives the metrical information that the first base station is sent, and the metrical information is what the terminal measured the reference signal on the different beams of second base station；

For the central node according to the metrical information, the object beam for having accessed the terminal of the first base station can be serviced by determining in the wave beam of second base station；

The information of the object beam is sent to second base station by the central node.
Method as claimed in claim 10, which is characterized in that the method also includes:

The information of the object beam is sent to the first base station by the central node.
Method as described in claim 10 or 11, which is characterized in that if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or the information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.
A kind of base station, which is characterized in that applied to the communication system including the base station and the second base station System, which includes:

Receiving module, the metrical information reported for receiving terminal, the metrical information are what the terminal measured the reference signal on the different beams of second base station；

Sending module, for the metrical information to be sent to network node, so that the network node, which is determined according to the metrical information in the wave beam of second base station, can service the object beam for having accessed the terminal of the base station, the network node is center node or second base station, the central node is connect with core net, and the base station and second base station are communicated by the central node.
Base station as claimed in claim 13, which is characterized in that the sending module is also used to:

Some or all of described terminal is carried into information, is sent to second base station, the carrying information is used to indicate second base station and establishes respective carrier.
Base station as claimed in claim 13, which is characterized in that

The receiving module is also used to: receiving the information for the object beam that the network node is sent；

The sending module is also used to: the information of the object beam is sent to the terminal.
Such as the described in any item base stations of claim 13~15, which is characterized in that if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or different time intervals information and the terminal in different time intervals to the ginseng on the antenna port of second base station Examine the measured value that signal measurement obtains；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.
A kind of base station, which is characterized in that applied to the communication system including first base station and the base station, the base station includes:

Object beam obtains module, can service the object beam for having accessed the terminal of the first base station in the wave beam for obtaining the base station；

Data transmission module, for carrying out data transmission with the terminal by the object beam.
Base station as claimed in claim 17, which is characterized in that the base station further include:

Module is established in carrying, some or all of described terminal for receiving network node transmission carrying information, wherein the network node is the first base station or central node, and the central node is connect with core net, the first base station and the base station respectively；According to the carrying information, corresponding carrying is established；And the corresponding data of the carrying are obtained from core net；

The data transmission module is specifically used for: by the object beam, the corresponding data of the carrying being sent to the terminal.
Base station as described in claim 17 or 18, which is characterized in that the object beam obtains module and is specifically used for:

The information for the object beam that central node is sent and the identification information of the terminal are received, to obtain the object beam, wherein the central node is connect with core net, the first base station and the base station respectively.
Base station as described in claim 17 or 18, which is characterized in that the object beam obtains module and is specifically used for

Receive the metrical information that the network node is sent, wherein, the metrical information is what the terminal measured the reference signal on each wave beam of the base station, the network node is the first base station or central node, and the central node is connect with core net, the first base station and the base station respectively；

According to the load information on each wave beam of the metrical information and/or the base station, the object beam is determined.
Base station as claimed in claim 20, which is characterized in that if the base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If the base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of the base station obtains；Or the information and the terminal reference signal measurement on the antenna port of the base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of the base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of the base station of the terminal, N is positive integer.
A kind of central node, it is characterized in that, being applied to includes first base station, the communication system of the second base station and the central node, the central node is connect with core net, and communicated between the first base station and second base station by the central node, the central node includes:

Receiving module, the metrical information sent for receiving the first base station, the metrical information are what the terminal measured the reference signal on the different beams of second base station；

Determining module, for according to the metrical information, the object beam for having accessed the terminal of the first base station can be serviced by determining in the wave beam of second base station；

Sending module, for the information of the object beam to be sent to second base station.
Central node as claimed in claim 22, which is characterized in that the sending module is also used to:

The information of the object beam is sent to the first base station.
Central node as described in claim 22 or 23, which is characterized in that if second base station forms multiple wave beams using the fixation of the first beam modes, each wave beam corresponds to different antenna ports, and the metrical information includes:

It is greater than or equal to the measured value of the measurement thresholding of setting and its identification information of corresponding antenna port in the measured value that the terminal obtains the reference signal measurement；Or the identification information of all measured values and its corresponding antenna port that the terminal obtains the reference signal measurement；Or the identification information of greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal；Or the identification information of top n greatest measurement and its corresponding antenna port in the measured value that is obtained to the reference signal measurement of the terminal, N is positive integer；

If second base station is using different wave beams is formed in the second beam modes in different times section, the metrical information includes:

The information of time interval where the terminal is greater than or equal to the reference signal of the measurement thresholding of setting to the measured value that the reference signal measurement on the antenna port of second base station obtains；Or the information and the terminal reference signal measurement on the antenna port of second base station is obtained in different time intervals measured value of different time intervals；Or greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal；Or top n greatest measurement and its relevant information of corresponding time interval in the measured value that is obtained to the reference signal measurement on the antenna port of second base station of the terminal, N is positive integer.