CN107105439B

CN107105439B - Method, device and system for cooperative transmission among beams

Info

Publication number: CN107105439B
Application number: CN201610097074.0A
Authority: CN
Inventors: 刁心玺
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-02-22
Filing date: 2016-02-22
Publication date: 2021-08-20
Anticipated expiration: 2036-02-22
Also published as: CN107105439A; WO2017143810A1

Abstract

The application provides a method, a device and a system for cooperative transmission among wave beams, which relate to the field of radio communication and comprise the following steps: transmitting channel sounding beams with different beam directions into a service area; receiving feedback information for the channel sounding beams with different beam orientations from one or more terminals located within the service area and/or located within a neighbor area of the service area; determining at least one of the following according to the feedback information: a pointing of a communication beam transmitted from one or more of the terminals; a pointing of a communication beam transmitted to one or more of the terminals; potential interference of the channel sounding beam to a particular terminal at a particular beam pointing direction; the service area is covered by one or more wireless access points.

Description

Method, device and system for cooperative transmission among beams

Technical Field

The invention relates to the field of radio communication, in particular to a method, a device and a system for cooperative transmission among wave beams.

Background

The fifth generation mobile communication system gradually expands the communication spectrum to the millimeter wave band. The high-density deployment of wireless access points and the use of millimeter waves with large bandwidth and narrow beams are main technical means for solving 5G (5Generation) broadband transmission, and from the aspect of access point deployment, a millimeter wave access network has the following characteristics:

1) due to the intensive deployment of the access points, the millimeter wave beam interference sent by different access points (same or different operators) is large, and the cooperation opportunity is large; 2) the millimeter wave propagation path loss is large.

The above-mentioned usage and propagation loss characteristics of millimeter waves require that the fifth generation mobile communication system adopts an inter-beam interference coordination technique and an inter-beam cooperative transmission technique.

The Inter-beam Interference Coordination technology is a development of the existing Inter-Cell Interference Coordination (ICIC) technology, and the Inter-beam cooperative transmission technology is a development of the existing Coordinated Multi-Point (CoMP) technology.

The inter-cell interference coordination technology is implemented on a frequency domain and is used for coordinating the inter-cell interference of the same frequency. The basic techniques of ICIC fall into two categories: fractional Frequency Reuse (FFR) and Soft Frequency Reuse (SFR).

The Enhanced Inter-Cell Interference Coordination (eICIC) is the same-frequency multi-Inter-Cell Interference Coordination implemented in the time domain, and the core idea of the eICIC is to stagger the Interference in time. One or more subframes are configured to be Almost Blank Subframes (ABS) by the macro cell, and the micro cell provides service for cell edge terminals (UE) on the ABS subframes, so that main interference from the macro cell is avoided, and the service rate of the cell edge UE is improved.

The FeICIC (filtered Inter Cell Interference Coordination) is an enhancement to the eICIC technology, and under the FeICIC, the macro station can schedule a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH) dedicated to the UE on an ABS subframe; therefore, in general, in this case, the macro station can schedule UEs whose channel conditions are good with a very low transmission power to avoid interference to the micro station. In this case, channels such as PDCCH/PDSCH/PUSCH (Physical Uplink Shared Channel) can be transmitted with small power, but they are reliably decoded. The macro station may transmit a UE-specific PDCCH or PDSCH, but with the proviso that the macro station needs to reduce transmit power on ABS subframes to reduce interference to the micro station and needs to signal to the micro station about the transmit power level on ABS subframes. This is the fundamental difference between eICIC and felicic.

Under FeICIC, a macro station may schedule UEs on ABS subframes; therefore, FeICIC can be used more efficiently in conjunction with CoMP (coordinated multipoint transmission/reception) than eICIC.

The proposed coordinated multipoint transmission is to improve the transmission rate of cell edge terminals, and specifically to improve the signal strength received by terminals in the edge area. The implementation of coordinated multipoint transmission (CoMP) is premised on inter-cell interference coordination, and coordinated multipoint transmission must be a transmission diversity, MIMO (Multiple-Input Multiple-Output) transmission scheme, which is implemented when inter-multipoint interference is avoided.

CS/CB (Coordinated scheduling and beamforming) is an inter-beam coordination technique that can dynamically reduce interference from other cells. The data of the UE can only be obtained from the serving node, and the scheduling and beamforming of the user are based on the coordination result between eNodeBs (evolved base stations) in the CoMP cluster.

The core technology of downlink CoMP is JPT (Joint processing and transmission), which includes two implementation manners:

dynamic node selection, namely dynamically selecting one eNodeB from a cluster of eNodeBs participating in cooperative transmission according to Channel State Information (CSI) for sending data to UE;

joint transmission, according to CSI, dynamically selecting two or more eNodeBs from a cluster of eNodeBs participating in cooperative transmission and simultaneously transmitting data to UE;

for multiple enodebs simultaneously used to transmit data to a UE, two cases are possible: non-coherent transmission, typically in transmit diversity, and coherent transmission, typically in MIMO transmission.

The defects of the prior art are as follows: the method does not support beam interference coordination and beam coordination transmission based on beam pointing or terminal position, cannot acquire pointing information of beams or position information of a terminal in real time, and cannot determine potential interference relation or potential coordination transmission relation among beams of different access points in real time.

Disclosure of Invention

The invention provides a method, a device and a system for cooperative transmission among beams, which are used for realizing the real-time acquisition of the pointing information of the beams or the azimuth information of a terminal and the determination of the potential interference relationship or the potential cooperative transmission relationship among the beams of different access points.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

an inter-beam cooperative transmission method applied to a wireless access point includes:

transmitting channel sounding beams with different beam directions into a service area;

receiving feedback information for the channel sounding beams with different beam orientations from one or more terminals located within the service area and/or located within a neighbor area of the service area;

determining at least one of the following according to the feedback information:

a pointing of a communication beam transmitted from one or more of the terminals;

a pointing of a communication beam transmitted to one or more of the terminals;

potential interference of the channel sounding beam to a particular terminal at a particular beam pointing direction;

the service area is covered by one or more wireless access points.

Optionally, transmitting channel sounding beams with different beam pointing directions into the service area comprises:

transmitting two or more channel sounding beams with different beam directions to terminals within the service area in an instantaneous multi-beam or instantaneous single-beam manner;

the channel sounding beam has a different beam pointing direction than a communication beam transmitted by the wireless access point.

Optionally, the channel sounding beam and the communication beam transmitted by the wireless access point use different frequencies or use not exactly the same frequencies, or the channel sounding beam and the communication beam transmitted by other wireless access points in areas adjacent to or overlapping the service area use different frequencies or use not exactly the same frequencies.

Optionally, the receiving feedback information on the channel sounding beams with different beam orientations from one or more terminals located within the service area and/or located within a neighboring area of the service area comprises:

receiving feedback information on the channel sounding beams with different beam orientations from the one or more terminals through a communication beam of the wireless access point; or

Receiving feedback information for the channel sounding beams with different beam orientations from the one or more terminals over a channel sounding feedback channel of the wireless access point.

Optionally, the channel sounding feedback channel uses a different frequency or does not use exactly the same frequency as the communication beam.

Optionally, the feedback information includes at least one of:

signal reception intensity information of a beam having a predetermined beam number;

signal reception intensity information of a beam having a predetermined beam identification number;

and sending the identification information of the user terminal of the feedback information.

Optionally, determining, according to the feedback information, a pointing direction of a communication beam transmitted from one or more of the terminals includes:

and determining the offset angle of the position of each terminal relative to the direction of the preset channel detection beam according to the ratio of the signal amplitude and/or the power of two or more channel detection beams with different beam directions in the feedback information and the direction angle of the channel detection beam, and determining the direction of the communication beam of each terminal according to the offset angle.

Optionally, determining, according to the feedback information, potential interference of the channel sounding beam to a specific terminal under a specific beam pointing direction includes:

comparing a signal amplitude and/or power value of at least one channel sounding beam in the feedback information with a predetermined inter-beam interference threshold;

if the interference is larger than the preset inter-beam interference threshold, the channel detection beam pointed by the beam is judged as potential interference to the terminal sending the feedback information;

if the interference is smaller than or equal to the preset inter-beam interference threshold, the channel detection beam pointed by the beam is judged not to generate potential interference on the terminal sending the feedback information.

Optionally, the method further comprises:

if the direction of the channel detection beam is larger than the preset inter-beam interference threshold, determining the direction of the channel detection beam as a potential interference direction of a terminal serving other wireless access points in the area adjacent to or overlapped with the service area;

and if the direction of the channel detection beam is smaller than or equal to a preset inter-beam interference threshold, determining the direction of the channel detection beam as a non-interference direction or an interference isolation direction of a terminal served by other wireless access points in the areas adjacent to or overlapped with the service area.

The invention also provides a method for cooperative transmission among wave beams, which is applied to a user terminal and comprises the following steps:

receiving a channel detection beam transmitted by a wireless access point;

transmitting feedback information of the channel sounding beam to the wireless access point;

the feedback information is used by the wireless access point to determine at least one of:

a pointing direction of a communication beam transmitted from the terminal;

a pointing direction of a communication beam transmitted to the terminal;

the channel sounding beams may potentially interfere with a particular terminal at a particular beam pointing direction.

Optionally, the user terminal comprises a terminal located within a service area of the wireless access point and/or located within an area adjacent to the service area covered by other wireless access points.

Optionally, the sending the feedback information of the channel sounding beam to the wireless access point includes:

sending feedback information on the channel sounding beams to the wireless access point through uplink communication beams; or

And sending feedback information of the channel detection beam to the wireless access point through a channel detection feedback channel of the terminal.

Optionally, the feedback information includes at least one of:

Optionally, the method further comprises:

and receiving signals carried by two or more channel detection beams with different directions, which are sent by other wireless access points, of the wireless access point or a region adjacent to or overlapping with the service region through the channel detection channel of the user terminal according to the determined direction of the communication beam of the terminal.

Optionally, the method further comprises:

and according to the determined potential interference relationship, communicating with the wireless access point by using time-frequency resources orthogonal to terminals which are positioned in the adjacent or overlapped area of the service area and are served by other wireless access points.

The invention also provides a device for cooperative transmission between beams, which is arranged in a wireless access point and comprises:

the first transmitting module is used for transmitting channel detection beams with different beam directions to a service area;

a first receiving module, configured to receive feedback information on the channel sounding beams with different beam orientations from one or more terminals located in the service area and/or located in a neighboring area of the service area;

a first processing module, configured to determine, according to the feedback information, at least one of:

a pointing of a communication beam transmitted to one or more of the terminals;

the service area is covered by one or more wireless access points.

Optionally, the transmitting, by the first transmitting module, the channel sounding beams with different beam directions into the service area includes:

Optionally, the receiving, by the first receiving module, feedback information on the channel sounding beams with different beam orientations from one or more terminals located in the service area and/or located in adjacent areas of the service area refers to:

Optionally, the determining, by the first processing module according to the feedback information, the pointing direction of the communication beam transmitted from one or more of the terminals refers to:

Optionally, the determining, by the first processing module according to the feedback information, the potential interference of the channel sounding beam to the specific terminal under the specific beam pointing direction includes:

Optionally, the first processing module is further configured to:

The invention also provides a device for cooperative transmission between beams, which is arranged at a user terminal and comprises:

the second receiving module is used for receiving the channel detection beam transmitted by the wireless access point;

a second transmitting module, configured to send feedback information of the channel sounding beam to the wireless access point;

a pointing direction of a communication beam transmitted from the terminal;

a pointing direction of a communication beam transmitted to the terminal;

Optionally, the sending, by the second transmitting module, the feedback information of the channel sounding beam to the wireless access point includes:

Optionally, the apparatus further comprises:

and a second processing module, configured to receive, through the channel sounding channel of the user equipment, signals carried by two or more channel sounding beams with different orientations, where the two or more channel sounding beams are transmitted by the wireless access point or a region adjacent to or overlapping with the service region, according to the determined orientation of the communication beam of the terminal.

Optionally, the second processing module is further configured to:

The invention also provides a beam-to-beam cooperative transmission system, which comprises the wireless access point and the user terminal.

Compared with the prior art, the invention has the following beneficial effects:

the scheme provided by the invention can acquire the pointing information of the beams or the direction information of the terminal in real time, determine the potential interference relationship or potential cooperative transmission relationship among the beams of different access points, support the interference coordination among the beams and the cooperative transmission among the beams based on the beam pointing or the direction of the terminal, and improve the system throughput and the spectrum efficiency.

Drawings

Fig. 1 is a flowchart of a method for cooperative transmission between beams according to an embodiment of the present invention;

fig. 2 is a flowchart of another inter-beam cooperative transmission method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 5 shows a network side implementation procedure of a method for cooperative transmission between beams according to an embodiment of the present invention;

fig. 6 shows a network side implementation step of a method for cooperative transmission between beams according to an embodiment of the present invention;

fig. 7 shows a terminal side implementation procedure of a method for cooperative transmission between beams according to an embodiment of the present invention;

fig. 8 shows a terminal side implementation procedure of a method for cooperative transmission between beams according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a channel sounding method according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a network measurement configuration of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 11 is a schematic diagram illustrating a network measurement configuration of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a terminal side configuration of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 13 is a schematic diagram of a terminal side configuration of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention;

fig. 14 is a schematic diagram of a beam-to-beam cooperative transmission system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention with reference to the accompanying drawings is provided, and it should be noted that, in the case of conflict, features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The embodiment of the invention works in a mode that the base station tracks (service transmission) and searches (detects potential interference channels or cooperative transmission channels), thereby not only solving the interference coordination among the beams of different base stations, but also realizing the cooperative transmission of the beams among different base stations.

Specifically, a channel sounding beam is introduced into an air interface of a base station, and the channel sounding beam and a communication beam work in the following manner:

the channel sounding beam and the communication beam operate in a time-division (time-series) manner: or,

the channel sounding beam and the communication beam work in parallel:

the channel detection beams among different base stations work in a synchronous mode; or,

channel sounding beams between different base stations operate in an asynchronous manner;

the channel sounding beam

In order to reduce the time for channel detection or reduce the channel detection times, an association matrix between beams of different access points can be constructed, and the association is proved to be used for interference coordination and cooperative transmission between beams of different stations; the inter-beam channel incidence matrix comprises a channel incidence matrix among two beams, three beams, four beams and N beams;

the channel detection beam and the service channel beam are directed to different beams, and the channel detection beam and the service channel beam use different frequency bands or use frequency bands which are not completely the same;

transmitting a channel sounding beam and a communication beam using the same antenna port or different antenna ports; the beam shape of the channel sounding beam is the same as or different from that of the communication beam;

the channel detection beam and the communication beam adopt an electromechanical servo mode to adjust the beam direction or adopt a beam forming technology to adjust the beam direction.

As shown in fig. 1, an embodiment of the present invention provides an inter-beam cooperative transmission method applied to a wireless access point, including:

s101, transmitting channel detection beams with different beam directions to a service area;

s102, receiving feedback information of the channel sounding beams with different beam directions from one or more terminals located in the service area and/or located in adjacent areas of the service area;

s103, determining at least one of the following according to the feedback information:

a pointing of a communication beam transmitted to one or more of the terminals;

the service area is covered by one or more wireless access points.

Wherein the user terminal comprises a terminal located within a service area of the wireless access point and/or within an area adjacent to the service area and covered by other wireless access points.

The method of the embodiment of the invention also comprises the following steps:

specifically, a first wireless access point transmits channel sounding beams with different beam pointing directions to a first terminal served by the first wireless access point;

the first wireless access point receiving feedback information on the channel sounding beams with different beam orientations from the first terminal; or, the first wireless access point receives feedback information on the channel sounding beams with different beam orientations from the first terminal and a third terminal, the third terminal being currently served by the first wireless access point or by the second wireless access point;

determining a bearing of a communication beam serving the first terminal using feedback information received from the first terminal for the channel sounding beam; or, determining a potential interference relationship between the first terminal and the third terminal by using feedback information of the channel detection beam received from the third terminal;

or,

the first wireless access point transmitting channel sounding beams with different beam pointing directions to a second terminal served by a second wireless access point;

the first wireless access point receiving feedback information on the channel sounding beams with different beam orientations from the second terminal; or, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal and the fourth terminal; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

determining a bearing of a communication beam serving a second terminal using feedback information of the channel sounding beam received from the second terminal; alternatively, the potential interference relationship between the second terminal and the fourth terminal is determined using the feedback information of the channel sounding beam received from the fourth terminal.

Step S101 includes:

Wherein the channel sounding beam and the communication beam transmitted by the wireless access point use different frequencies or use not the same frequency completely, or the channel sounding beam and the communication beam transmitted by other wireless access points in the area adjacent to or overlapping the service area use different frequencies or use not the same frequency completely.

Step S102 includes:

receiving feedback information on the channel sounding beams with different beam orientations from the user terminal through a communication beam of the wireless access point; or

Receiving feedback information for the channel sounding beams with different beam orientations from the user terminal through a channel sounding feedback channel of the wireless access point.

Wherein the channel sounding feedback channel uses a different frequency or does not use exactly the same frequency as the communication beam.

The feedback information includes at least one of:

Determining, in step S103, a direction of a communication beam transmitted from one or more of the terminals according to the feedback information includes:

Determining, in step S103, according to the feedback information, that the channel sounding beam potentially interferes with a specific terminal under a specific beam pointing direction includes:

After step S101, the method further comprises:

As shown in fig. 2, an embodiment of the present invention further provides an inter-beam cooperative transmission method, which is applied to a user terminal, and includes:

s201, receiving a channel detection beam transmitted by a wireless access point;

s202, sending feedback information of the channel detection beam to the wireless access point;

a pointing direction of a communication beam transmitted from the terminal;

a pointing direction of a communication beam transmitted to the terminal;

The user terminals include terminals located within the service area of the wireless access point and/or within areas adjacent to the service area covered by other wireless access points.

Specifically, a first terminal receives a channel sounding beam from a first wireless access point;

the first terminal sends feedback information of the channel detection beams with different beam directions to a first wireless access point; or the first terminal and a third terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, wherein the third terminal is currently served by the first wireless access point or the second wireless access point;

the first terminal receives a signal carried by a communication beam which is determined to be pointed by the beam by using the feedback information sent by the first terminal from the first wireless access point; or the potential interference relationship between the first terminal and the third terminal is determined by feedback information of the channel sounding beam sent by the third terminal to the first wireless access point;

or,

the second terminal receiving a channel sounding beam from the first wireless access point;

the second terminal sends feedback information of the channel detection beams with different beam directions to the first wireless access point; or the second terminal and the fourth terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

the second terminal receiving signals from a communication beam to which the beam is directed using the feedback information it transmits; alternatively, the potential interference relationship between the second terminal and the fourth terminal is determined using feedback information of the channel sounding beam received from the fourth terminal.

Step S202 includes:

The feedback information includes at least one of:

The method further comprises the following steps:

As shown in fig. 3, an embodiment of the present invention further provides an inter-beam cooperative transmission apparatus, which is disposed in a wireless access point, and includes:

a pointing of a communication beam transmitted to one or more of the terminals;

the service area is covered by one or more wireless access points.

The first transmitting module transmits channel sounding beams with different beam directions to the service area, which means that:

The first receiving module receiving feedback information of the channel sounding beams with different beam directions from one or more terminals located in the service area and/or located in adjacent areas of the service area refers to:

The first processing module determines, according to the feedback information, the direction of a communication beam transmitted from one or more of the terminals, by:

The first processing module determining, according to the feedback information, potential interference of the channel sounding beam to a specific terminal under a specific beam pointing direction includes:

The first processing module is further configured to:

As shown in fig. 4, an embodiment of the present invention further provides an inter-beam cooperative transmission apparatus, which is disposed in a user terminal, and includes:

a pointing direction of a communication beam transmitted from the terminal;

a pointing direction of a communication beam transmitted to the terminal;

The sending, by the second transmitting module, the feedback information of the channel sounding beam to the wireless access point includes:

The device further comprises: and a second processing module, configured to receive, through the channel sounding channel of the user equipment, signals carried by two or more channel sounding beams with different orientations, where the two or more channel sounding beams are transmitted by the wireless access point or a region adjacent to or overlapping with the service region, according to the determined orientation of the communication beam of the terminal.

The second processing module is further configured to:

The embodiment of the invention also provides a system for the cooperative transmission among the wave beams, which comprises the wireless access point and the user terminal.

Example 1

An example of a method for inter-beam cooperative transmission provided in an embodiment of the present invention is applied to a network side, and includes a step of inter-beam interference coordination and/or inter-beam cooperative transmission, where,

the inter-beam interference coordination step, as shown in fig. 5, includes:

step S110, a first wireless access point transmits channel detection beams with different beam directions to a first terminal served by the first wireless access point;

step S120, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the first terminal; or, the first wireless access point receives feedback information on the channel sounding beams with different beam orientations from the first terminal and a third terminal, the third terminal being currently served by the first wireless access point or by the second wireless access point;

step S130 of determining a direction of a communication beam serving the first terminal using feedback information on the channel sounding beam received from the first terminal; or, determining a potential interference relationship between the first terminal and the third terminal by using feedback information of the channel detection beam received from the third terminal;

the inter-beam cooperative transmission step, as shown in fig. 6, includes:

step S210, the first wireless access point transmits channel detection beams with different beam directions to a second terminal served by the second wireless access point;

step S220, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal; or, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal and the fourth terminal; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

step S230, determining the direction of the communication beam serving the second terminal using the feedback information of the channel sounding beam received from the second terminal; alternatively, the potential interference relationship between the second terminal and the fourth terminal is determined using the feedback information of the channel sounding beam received from the fourth terminal.

The method of the present embodiment, wherein,

corresponding to the step of coordinating interference between beams, the first wireless access point transmits channel sounding beams with different beam directions to a first terminal served by the first wireless access point, and the method specifically includes the following steps:

a first wireless access point transmits two or more channel sounding beams with different beam directions to a first terminal served by the first wireless access point in an instantaneous multi-beam mode or an instantaneous single-beam mode;

the channel sounding beam has a different beam pointing direction than a communication beam transmitted by a first wireless access point;

the channel sounding beam uses a different frequency or uses a frequency that is not exactly the same as a communication beam transmitted by a first wireless access point;

corresponding to the inter-beam cooperative transmission step, the first wireless access point transmits channel sounding beams with different beam directions to a second terminal served by a second wireless access point, which specifically includes the following steps:

the first wireless access point transmitting two or more channel sounding beams with different beam pointing directions to a second terminal served by a second wireless access point in an instantaneous multi-beam or instantaneous single-beam manner;

the channel sounding beam uses a different frequency or uses a frequency that is not exactly the same as a communication beam transmitted by a second wireless access point.

Specifically, referring to fig. 9, one implementation manner of the first wireless access point transmitting channel sounding beams with different beam orientations to the first terminal served by the first wireless access point in step S110 is as follows:

the first wireless access point 501 transmits four

channel sounding beams

511, 512, 513 and 514 with different beam directions to a first terminal 551 it serves in a momentary single beam manner, the four channel sounding beams with different beam directions forming four differently located and mutually overlapping illumination areas 511 ', 512', 513 'and 514' around the first terminal 551;

the

channel sounding beams

511, 512, 513 and 514 used here have different beam pointing directions from the communication beam 520 transmitted by the first wireless access point 501; ideally, the boresight direction of the communication beam 520 is directed towards the point of the receiving antenna of the first terminal 551, and the boresight directions of the

channel sounding beams

511, 512, 513, and 514 are offset from the point of the receiving antenna of the first terminal 551 by an offset angle value;

as used herein, the

channel sounding beams

511, 512, 513 and 514 use different or not exactly the same frequencies as the communication beam 520 transmitted by the first wireless access point 501; the communication beam 520 transmitted by the first wireless access point 501 transmits communication data using a first sub-band within the 60GHz millimeter-wave frequency band, and the

channel sounding beams

511, 512, 513, and 514 transmit communication data using a second sub-band within the 60GHz millimeter-wave frequency band; alternatively, the communication beam 520 transmitted by the first wireless access point 501 transmits communication data using a first sub-band within the 60GHz millimeter wave frequency band, and the

channel sounding beams

511, 512, 513, and 514 transmit channel sounding signals using sub-bands in the first sub-band;

preferably, the

channel sounding beams

511, 512, 513 and 514 used here use different frequencies from the communication beam 520 transmitted by the first wireless access point 501;

the channel sounding signal specifically includes at least one of the following signals:

a beam identification signal or a beam number signal;

identification signals of wireless nodes to which the beams belong;

a beam pointing signal; and

the beam transmits a power signal.

Specifically, referring to fig. 9, one implementation manner of the first wireless access point transmitting the channel sounding beams with different beam orientations to the second terminal served by the second wireless access point in step S210 is as follows:

the first wireless access point 501 transmits channel sounding beams with different beam directions to a second terminal served by a second wireless access point 502, and specifically includes the following steps:

the first wireless access point 501 transmits four

channel sounding beams

511, 512, 513, and 514 with different beam pointing directions to a second terminal 552 served by the second wireless access point 502 in an instantaneous multi-beam manner; the four channel probe beams with different beam orientations form four differently located and overlapping illumination areas 511 ', 512', 513 'and 514' around the second terminal 552;

the

channel sounding beams

511, 512, 513 and 514 use different frequencies or use not exactly the same frequencies as the communication beam 530 transmitted by the second wireless access point 502; one way to use different frequencies is to: communication beam 530 transmitted by second wireless access point 502 transmits communication data using a first sub-band within the 60GHz millimeter-wave frequency band, and

channel sounding beams

511, 512, 513, and 514 transmit communication data using a second sub-band within the 60GHz millimeter-wave frequency band.

Transmitting synchronization, and controlling the receiving of a terminal by using a downlink synchronization channel; including, beam identification information; beam numbering information; pointing information, etc.;

the downlink synchronous control channel is configured on a Single Frequency Network (SFN) or a macro cell base station; or, the synchronous error information among the communication beams is obtained by measuring the communication beams transmitted by different wireless access points by the terminal, the synchronous error information is reported to the network side by the terminal, and the network side uses the error information to adjust the transmitting time of the corresponding beam;

the method of the present embodiment, wherein,

corresponding to the inter-beam interference coordination step, the first wireless access point receiving, from the first terminal, feedback information on the channel sounding beams with different beam directions, specifically including the following steps:

the first wireless access point receiving feedback information from the first terminal on the channel sounding beams with different beam pointing directions using its communication beam; or

The first wireless access point receiving feedback information for the channel sounding beams with different beam pointing directions from the first terminal using its channel sounding feedback channel;

the channel sounding feedback channel of the first wireless access point uses a different frequency or does not use exactly the same frequency as the communication beam of the first wireless access point;

corresponding to the inter-beam interference coordination step, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the first terminal and the third terminal, and specifically includes the following steps:

the first wireless access point receiving feedback information on the channel sounding beams with different beam pointing directions from the first terminal and the third terminal using its communication beam; or

The first wireless access point receiving feedback information on the channel sounding beams with different beam orientations from the first terminal and the third terminal using its channel sounding feedback channel;

corresponding to the inter-beam cooperative transmission step, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal, and specifically includes the following steps:

the first wireless access point receiving feedback information on the channel sounding beams with different beam pointing directions from the second terminal using its communication beam; or

The first wireless access point receiving feedback information on the channel sounding beams with different beam pointing directions from the second terminal using its channel sounding feedback channel;

corresponding to the inter-beam cooperative transmission step, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal and the fourth terminal, and specifically includes the following steps:

the first wireless access point receiving feedback information on the channel sounding beams with different beam orientations from the second terminal and the fourth terminal using its communication beam; or

The first wireless access point receiving feedback information on the channel sounding beams with different beam orientations from the second terminal and the fourth terminal using its channel sounding feedback channel;

the channel sounding feedback channel of the first wireless access point uses a different frequency or does not use exactly the same frequency as the communication beam of the first wireless access point.

Further, the feedback information of the channel sounding beam transmitted by the terminal includes at least one of the following information:

signal reception strength information of a beam having a specific beam number/beam number other than the specific beam number; and

identification information of a terminal transmitting feedback information of a channel sounding beam;

receiving synchronization, namely controlling the receiving of the terminal by using a downlink synchronization channel; receiving transmission signals of terminals served by the different access points;

and receiving the uplink feedback channel through a detection beam configured on the wireless access point, wherein the uplink feedback channel uses the same or different frequency as the communication beam.

The method of the present embodiment, wherein,

corresponding to the inter-beam interference coordination step, the determining the direction of the communication beam serving the first terminal by using the feedback information of the channel sounding beam received from the first terminal specifically includes the following steps:

determining the offset angle of the position of the first terminal relative to the direction of the specific channel detection beam by using the ratio between the signal amplitude/power of two or more channel detection beams with different beam directions contained in the feedback information of the channel detection beams, combining the direction angle of the corresponding channel detection beam, determining the direction of the communication beam serving the first terminal by using the offset angle by using a amplitude-ratio lateral method;

specifically, as shown in fig. 9, the first wireless node 501 acquires signal strength measurement information for four

channel sounding beams

511, 512, 513, and 514 having different beam orientations from the terminal 551, calculates a first-dimensional offset angle of the receiving antenna of the terminal 551 with respect to the channel sounding beam 511 using a difference in signal strength between the

channel sounding beams

511 and 512 and beam shape information of the two channel sounding beams, and calculates a second-dimensional offset angle of the receiving antenna of the terminal 551 with respect to the channel sounding beam 513 using a difference in signal strength between the

channel sounding beams

513 and 514 and beam shape information of the two channel sounding beams; the azimuth angle of the terminal 551 with respect to the first wireless access point 501 is determined using the beam pointing directions of the

channel sounding beams

511 and 513 and the first and second dimension offset angles.

Corresponding to the inter-beam interference coordination step, the determining a potential interference relationship between the first terminal and the third terminal by using the feedback information on the channel sounding beam received from the third terminal specifically includes the following steps:

comparing the signal amplitude/power value of at least one channel detection beam contained in the feedback information of the channel detection beam with a preset inter-beam interference threshold, if the signal amplitude/power value is larger than the preset inter-beam interference threshold, judging the first terminal and the third terminal as terminals with potential interference, or determining the direction of the channel detection beam as a potential interference direction to the third terminal; if the interference is smaller than or equal to a preset inter-beam interference threshold, judging the first terminal and the third terminal as non-potential interference terminals, or determining the direction of the channel detection beam as a non-interference direction or an interference isolation direction for the third terminal;

specifically, the signal amplitude value of the channel sounding beam 514 included in the feedback information of the channel sounding beam 514 sent by the terminal 553 is compared with a predetermined inter-beam interference threshold I _ thr, and the comparison result is greater than the predetermined inter-beam interference threshold I _ thr, so that the first terminal 551 and the third terminal 553 are determined as terminals with potential interference; and, the pointing direction of the channel sounding beam 514 is determined as a potentially non-interfering direction to the third terminal 553;

corresponding to the inter-beam cooperative transmission step, the determining, by using the feedback information of the channel sounding beam received from the second terminal, the direction of the communication beam serving the second terminal includes:

determining the offset angle of the position of the second terminal relative to the direction of the specific channel detection beam by using the ratio between the signal amplitude/power of two or more channel detection beams with different beam directions contained in the feedback information of the channel detection beam, combining the direction angle of the corresponding channel detection beam, determining the direction of the communication beam serving the second terminal by using the offset angle by using a amplitude-ratio lateral method;

channel sounding beams

511, 512, 513, and 514 having different beam orientations from the second terminal 552, calculates a first-dimensional offset angle of the receiving antenna of the second terminal 552 with respect to the channel sounding beam 511 using a difference between signal strengths of the

channel sounding beams

511 and 512 and beam shape information of the two channel sounding beams, and calculates a second-dimensional offset angle of the receiving antenna of the second terminal 552 with respect to the channel sounding beam 513 using a difference between signal strengths of the

channel sounding beams

513 and 514 and beam shape information of the two channel sounding beams; determining an azimuth angle of the second terminal 552 with respect to the first wireless access point 501 using the beam pointing directions of the

channel sounding beams

511 and 513 and the first and second dimension offset angles;

further, the bearing angle of the second terminal 552 with respect to the first wireless access point 501 is used to adjust the pointing direction of the communication beam 520 of the first wireless access point to the bearing angle at which the second terminal is illuminated.

Corresponding to the inter-beam cooperative transmission step, the determining a potential interference relationship between the second terminal and the fourth terminal by using the feedback information of the channel sounding beam received from the fourth terminal specifically includes the following steps:

comparing the signal amplitude/power value of at least one channel detection beam contained in the feedback information of the channel detection beam with a preset inter-beam interference threshold, if the signal amplitude/power value is larger than the preset inter-beam interference threshold, judging the second terminal and the fourth terminal as terminals with potential interference, or determining the direction of the channel detection beam as a potential interference direction to the fourth terminal; and if the direction of the channel detection beam is smaller than or equal to the preset inter-beam interference threshold, judging the second terminal and the fourth terminal as non-potential interference terminals, or determining the direction of the channel detection beam as a non-interference direction or an interference isolation direction for the fourth terminal.

Specifically, the signal amplitude value of the channel detection beam 513 included in the feedback information about the channel detection beam 513 sent by the terminal 554 is compared with the predetermined inter-beam interference threshold I _ thr, and the comparison result is greater than the predetermined inter-beam interference threshold I _ thr, so that the fourth terminal 554 and the second terminal 552 are determined as being potentially interfering terminals; and the pointing direction of the channel sounding beam 513 is determined as a potentially non-interfering direction for the fourth terminal 554.

In fig. 9, there is an overlapping area between a service area 503 of the first wireless access point 501 and a service area 504 of the second wireless access point 502, and in this overlapping area, there is a possibility that transmission may be performed to the same wireless terminal by using both the first wireless access point 501 and the second wireless access point 502.

Specifically, when the signal strength of the irradiation regions 511 ', 512', 513 'and 514' corresponding to the channel sounding beam transmitted by the terminal 552 to the first wireless access point 501 exceeds a predetermined cooperative transmission threshold and no other terminal feeds back to indicate that it is interfered by the signals of the irradiation regions 511 ', 512', 513 'and 514', the first wireless access point 501 transmits a beam 540 to the terminal 552, and the beam 540 and the beam 530 transmitted by the second wireless access point 502 transmit data to the terminal 552 in a transmission diversity or inter-frequency parallel transmission manner.

Example 2

An exemplary method for inter-beam cooperative transmission provided in an embodiment of the present invention is applied to a terminal side, and includes an inter-beam interference coordination and/or an inter-beam cooperative transmission step, where,

the step of coordinating interference between beams, as shown in fig. 7, includes:

step S310, the first terminal receives channel detection beams with different beam directions from the first wireless access point;

step S320, the first terminal sends feedback information of the channel sounding beams with different beam directions to the first wireless access point; or the first terminal and a third terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, wherein the third terminal is currently served by the first wireless access point or the second wireless access point;

step S330, the first terminal receives a signal carried by a communication beam pointed by the beam determined by the first terminal by using the feedback information sent by the first terminal from the first wireless access point; or the potential interference relationship between the first terminal and the third terminal is determined by feedback information of the channel sounding beam sent by the third terminal to the first wireless access point;

the inter-beam cooperative transmission step, as shown in fig. 8, includes:

step S410, the second terminal receives channel detection beams with different beam directions from the first wireless access point;

step S420, the second terminal sends feedback information of the channel sounding beams with different beam directions to the first wireless access point; or the second terminal and the fourth terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

step S430, the second terminal receives a signal from a communication beam to which the beam is directed, which is determined using the feedback information it transmits; alternatively, the potential interference relationship between the second terminal and the fourth terminal is determined using feedback information of the channel sounding beam received from the fourth terminal.

The method of the present embodiment, wherein,

corresponding to the inter-beam interference coordination step, the first terminal receives channel sounding beams with different beam directions from the first wireless access point, and specifically includes the following steps:

the first terminal receives two or more channel detection beams with different beam directions, which are transmitted by the first wireless access point in an instantaneous multi-beam mode or an instantaneous single-beam mode;

corresponding to the inter-beam cooperative transmission step, the second terminal receives channel sounding beams with different beam directions from the first wireless access point, and specifically includes the following steps:

the second terminal receives two or more channel detection beams with different beam directions, which are transmitted by the first wireless access point in an instantaneous multi-beam mode or an instantaneous single-beam mode;

the method of the present embodiment, wherein,

corresponding to the inter-beam interference coordination step, the first terminal sends the feedback information of the channel sounding beams with different beam directions to the first wireless access point, which specifically includes the following steps:

the first terminal sends feedback information of the channel detection beams with different beam directions to the first wireless access point by using an uplink communication beam; or

The first terminal sends feedback information of the channel detection beams with different beam directions to the first wireless access point through a channel detection feedback channel of the first terminal;

the channel detection feedback channel of the first terminal and the communication beam of the first wireless access point use different frequencies or use not identical frequencies;

corresponding to the inter-beam interference coordination step, the first terminal and the third terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, which specifically includes the following steps:

the first terminal and the third terminal send feedback information of the channel detection beams with different beam directions through the uplink communication beam of the first wireless access point; or

The first terminal and the third terminal send feedback information of the channel detection beams with different beam directions to the first wireless access point through channel detection feedback channels of the first terminal and the third terminal;

the channel detection feedback channel used by the first terminal and the third terminal and the communication beam of the first wireless access point use different frequencies or use not identical frequencies;

corresponding to the inter-beam cooperative transmission step, the second terminal sends feedback information of the channel sounding beams with different beam directions to the first wireless access point, and specifically includes the following steps:

the second terminal sends feedback information of the channel detection beams with different beam directions through the uplink communication beam of the first wireless access point; or

The second terminal sends feedback information of the channel detection beams with different beam directions through a channel detection feedback channel of the first wireless access point;

corresponding to the inter-beam cooperative transmission step, the second terminal and the fourth terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, which specifically includes the following steps:

the second terminal and the fourth terminal send feedback information of the channel detection beams with different beam directions to the first wireless access point through uplink communication beams; or

The second terminal and the fourth terminal send feedback information of the channel detection beams with different beam directions to the first wireless access point through channel detection feedback channels of the second terminal and the fourth terminal;

the channel sounding feedback channels of the second and fourth terminals use different frequencies or use not exactly the same frequencies as the communication beam of the first wireless access point.

Receiving synchronization, namely controlling the receiving of the terminal by using a downlink synchronization channel; the transmitted signals of the terminals it serves are received from different access points.

The method of the present embodiment, wherein,

corresponding to the inter-beam interference coordination step, the first terminal receives, from the first wireless access point, a signal carried by a communication beam to which the beam is determined to be directed using the feedback information sent by the first wireless access point, and specifically includes the following steps:

after or at the same time of receiving signals carried by communication beams which are determined to be directed by the beams by using the feedback information sent by the first wireless access point from the first wireless access point, the first terminal receives signals carried by two or more channel detection beams with different directions sent by the second wireless access point through a channel detection channel of the first terminal;

corresponding to the inter-beam interference coordination step, the potential interference relationship between the first terminal and the third terminal is determined by the feedback information of the channel sounding beam sent by the third terminal to the first wireless access point, which specifically includes the following steps:

after the potential interference relationship between the first terminal and the third terminal is determined, the first terminal communicates with the first wireless access point using time-frequency resources orthogonal to the third terminal.

the second terminal receives signals from the communication beams of the first wireless access point and the second wireless access point in a simultaneous or time-sharing manner;

after the potential interference relationship between the second terminal and the fourth terminal is determined, the second terminal communicates with the first or second wireless access point using time-frequency resources orthogonal to the fourth terminal.

Example 3

An example of an inter-beam cooperative transmission apparatus according to an embodiment of the present invention is used for a network side, and the apparatus includes an inter-beam interference coordination module 600 and/or an inter-beam cooperative transmission module 700, where,

the inter-beam interference coordination module 600, shown in fig. 10, includes:

a channel detection beam emission control sub-module 610, a channel detection beam feedback information processing sub-module 620, and an interference coordination sub-module 630; wherein,

the channel sounding beam transmission control sub-module 610 is configured to transmit, by a first wireless access point, channel sounding beams with different beam directions to a first terminal served by the first wireless access point, and includes a beam direction control unit and a beam identification number generation unit;

the channel sounding beam feedback information processing sub-module 620 is configured to receive, by the first wireless access point, feedback information about the channel sounding beams with different beam orientations from the first terminal; or, the first wireless access point receives feedback information on the channel sounding beams with different beam orientations from the first terminal and a third terminal, the third terminal being currently served by the first wireless access point or by the second wireless access point; the terminal comprises a terminal position identification unit;

the interference coordination sub-module 630, which determines the pointing direction of the communication beam serving the first terminal using the feedback information received from the first terminal for the channel sounding beam; or, determining a potential interference relationship between the first terminal and the third terminal by using feedback information of the channel detection beam received from the third terminal; the module comprises a communication beam direction determining unit or an inter-beam interference relationship determining unit;

the inter-beam cooperative transmission module 700, as shown in fig. 11, includes:

a channel sounding beam emission control sub-module 710, a channel sounding beam feedback information processing sub-module 720, and a cooperative emission sub-module 730; wherein,

the channel sounding beam transmission control sub-module 710 is configured to transmit, by the first wireless access point, a channel sounding beam with different beam directions to a second terminal served by the second wireless access point, and includes a beam direction control unit and a beam identification number generation unit;

the channel sounding beam feedback information processing sub-module 720, the first wireless access point receives feedback information of the channel sounding beams with different beam orientations from the second terminal; or, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal and the fourth terminal; the fourth terminal is currently served by the first wireless access point or by the second wireless access point; the sub-module comprises a terminal position identification unit;

the cooperative transmission sub-module 730, which determines the direction of the communication beam serving the second terminal using the feedback information of the channel sounding beam received from the second terminal; or, determining a potential interference relationship between the second terminal and the fourth terminal by using the feedback information of the channel detection beam received from the fourth terminal; the sub-module includes a communication beam direction determining unit or an inter-beam interference relationship determining unit.

The present embodiment provides an apparatus, wherein,

corresponding to the inter-beam interference coordination module 600, the channel sounding beam transmission control sub-module 610 is configured to perform the following steps:

corresponding to the inter-beam cooperative transmission module 700, the channel sounding beam transmission control sub-module 710 is configured to perform the following steps:

the present embodiment provides an apparatus, wherein,

corresponding to the inter-beam interference coordination module 600, the channel sounding beam feedback information processing sub-module 620 is configured to perform the following steps:

or

corresponding to the inter-beam cooperative transmission module 700, the channel sounding beam feedback information processing sub-module 710 is configured to perform the following steps:

or

The present embodiment provides an apparatus, wherein,

corresponding to the inter-beam interference coordination module 600, the inter-beam interference coordination sub-module 630 is configured to perform the following steps:

or

corresponding to the inter-beam cooperative transmission module 700, the cooperative transmission sub-module 730 is configured to perform the following steps:

or

Example 4

An example of a device for cooperative transmission between beams according to an embodiment of the present invention is used at a terminal side, and the device includes: the inter-beam interference coordination module 800 and/or the inter-beam cooperative transmission module 900, wherein,

the inter-beam interference coordination module 800, as shown in fig. 12, includes:

a channel sounding beam receiving processing sub-module 810, a channel sounding beam feedback sub-module 820, and a communication beam receiving control sub-module 830; wherein,

the channel sounding beam receiving processing sub-module 810 is configured to receive, by the first terminal, channel sounding beams with different beam orientations from the first wireless access point, and includes an amplitude or power measurement unit and a beam number identification unit;

the channel sounding beam feedback sub-module 820 is configured to send feedback information of the channel sounding beams with different beam directions to the first wireless access point by the first terminal; or the first terminal and a third terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, wherein the third terminal is currently served by the first wireless access point or the second wireless access point; the device comprises a channel detection beam feedback information sending unit;

the communication beam receiving control sub-module 830, configured to receive, from the first wireless access point, a signal carried by a communication beam to which the beam is determined to be directed by using the feedback information sent by the first terminal; or the potential interference relationship between the first terminal and the third terminal is determined by feedback information of the channel sounding beam sent by the third terminal to the first wireless access point; the device comprises a communication beam time-frequency position configuration unit;

the inter-beam cooperative transmission module 900, as shown in fig. 13, includes:

a channel detection beam receiving processing sub-module 910, a channel detection beam feedback sub-module 920, and a communication beam receiving control sub-module 930; wherein,

the channel sounding beam receiving processing sub-module 910 is configured to receive, by the second terminal, channel sounding beams with different beam orientations from the first wireless access point;

the channel sounding beam feedback sub-module 920 is configured to send feedback information of the channel sounding beams with different beam directions to the first wireless access point by the second terminal; or the second terminal and the fourth terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

the communication beam reception control sub-module 930 configured to receive a signal from a communication beam to which the second terminal determines a beam from the feedback information transmitted using the second terminal; or, the potential interference relationship between the second terminal and the fourth terminal is determined by using the feedback information of the channel detection beam received from the fourth terminal; the communication beam time frequency position configuration unit is included.

The present embodiment provides an apparatus, wherein,

corresponding to the inter-beam interference coordination module, the channel detection beam receiving processing sub-module is used for executing the following steps:

corresponding to the inter-beam cooperative transmission module, the channel sounding beam receiving and processing sub-module included therein is used for executing the following steps:

the present embodiment provides an apparatus, wherein,

the inter-beam interference coordination module includes a channel sounding beam feedback sub-module for performing the following steps:

or,

the inter-beam cooperative transmission module includes a channel sounding beam feedback sub-module, configured to perform the following steps:

or,

Example 5

An example of a cooperative transmission system between beams according to an embodiment of the present invention is shown in fig. 14, and includes:

wireless

access point devices

501 and 502, cooperative transmission control device 100; wherein,

the wireless

access point devices

501 and 502 include an inter-beam interference coordination module and/or an inter-beam cooperative transmission module, wherein,

the inter-beam interference coordination module comprises the following sub-modules:

the channel detection beam emission control sub-module is used for the first wireless access point to emit channel detection beams with different beam directions to a first terminal served by the first wireless access point, and comprises a beam direction control unit and a beam identification number generation unit;

a channel sounding beam feedback information processing sub-module, configured to receive, by the first wireless access point, feedback information on the channel sounding beams with different beam orientations from the first terminal; or, the first wireless access point receives feedback information on the channel sounding beams with different beam orientations from the first terminal and a third terminal, the third terminal being currently served by the first wireless access point or by the second wireless access point; the terminal comprises a terminal position identification unit;

an interference coordination sub-module that determines the directionality of a communication beam serving the first terminal using feedback information received from the first terminal for the channel sounding beam; or, determining a potential interference relationship between the first terminal and the third terminal by using feedback information of the channel detection beam received from the third terminal; the module comprises a communication beam direction determining unit or an inter-beam interference relationship determining unit;

the inter-beam cooperative transmission module includes:

the channel detection beam emission control sub-module is used for the first wireless access point to emit channel detection beams with different beam directions to a second terminal served by a second wireless access point, and comprises a beam direction control unit and a beam identification number generation unit;

a channel sounding beam feedback information processing sub-module, wherein the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal; or, the first wireless access point receives feedback information of the channel sounding beams with different beam directions from the second terminal and the fourth terminal; the fourth terminal is currently served by the first wireless access point or by the second wireless access point; the sub-module comprises a terminal position identification unit;

a cooperative transmission sub-module that determines the direction of a communication beam serving a second terminal using feedback information of the channel sounding beam received from the second terminal; or, determining a potential interference relationship between the second terminal and the fourth terminal by using the feedback information of the channel detection beam received from the fourth terminal; the sub-module includes a communication beam direction determining unit or an inter-beam interference relationship determining unit.

The cooperative transmission control apparatus 100 is configured to perform data stream allocation between wireless access point apparatuses, and includes a data stream allocation module and a cooperative transmission control signal receiving or sending module.

The system of the present embodiment further comprises a mobile terminal device 552, which includes an inter-beam interference coordination module and/or an inter-beam cooperative transmission module, wherein,

the inter-beam interference coordination module includes:

the channel detection beam receiving processing submodule is used for the first terminal to receive channel detection beams with different beam directions from the first wireless access point and comprises an amplitude or power measuring unit and a beam number identifying unit;

a channel detection beam feedback sub-module, configured to send, by the first terminal, feedback information of the channel detection beams with different beam directions to the first wireless access point; or the first terminal and a third terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point, wherein the third terminal is currently served by the first wireless access point or the second wireless access point; the device comprises a channel detection beam feedback information sending unit;

a communication beam receiving control sub-module, configured to receive, by the first terminal, a signal carried by a communication beam to which the beam is determined to be directed using the feedback information sent by the first terminal from the first wireless access point; or the potential interference relationship between the first terminal and the third terminal is determined by feedback information of the channel sounding beam sent by the third terminal to the first wireless access point; the device comprises a communication beam time-frequency position configuration unit;

the inter-beam cooperative transmission module includes:

a channel sounding beam receiving processing sub-module for receiving channel sounding beams with different beam directions from the first wireless access point by the second terminal;

the channel detection beam feedback sub-module is used for the second terminal to send feedback information of the channel detection beams with different beam directions to the first wireless access point; or the second terminal and the fourth terminal send feedback information of the channel sounding beams with different beam directions to the first wireless access point; the fourth terminal is currently served by the first wireless access point or by the second wireless access point;

a communication beam reception control sub-module for the second terminal to receive a signal from a communication beam to which the beam is directed from the feedback information transmitted using the second terminal; or, the potential interference relationship between the second terminal and the fourth terminal is determined by using the feedback information of the channel detection beam received from the fourth terminal; the communication beam time frequency position configuration unit is included.

In the inter-beam cooperative transmission system shown in fig. 10, the first wireless access point 501 transmits

channel sounding beams

511, 512, 513, and 514, which have different beam orientations, and the first wireless access point 501 acquires a channel environment and an interference environment in which terminals in its service area are located by transmitting the channel sounding beams; the second wireless access point 502 transmits

channel sounding beams

531 and 532, which have different beam orientations, for the second wireless access point 502 to acquire the channel environment and the interference environment in which the terminals in its service area are located.

The first wireless node 501 and the second wireless node 502 autonomously decide whether to implement cooperative transmission for the terminal 552, based on the measurement and feedback of the terminal on the channel sounding beam; alternatively, the first wireless node 501 and the second wireless node 502 report the measurement and feedback information of the terminal on the channel sounding beam to the cooperative transmission control apparatus 100, and the cooperative transmission control apparatus 100 determines whether to perform cooperative transmission on the terminal 552.

The embodiment provided by the invention overcomes at least one of the defects that the traditional ICIC technology and CoMP technology can not acquire the pointing information of the beams or the direction information of the terminal in real time and can not determine the potential interference relationship or the potential cooperative transmission relationship among the beams of different access points in real time, can support the inter-beam interference coordination and the inter-beam cooperative transmission based on the beam pointing or the terminal direction, and improves the system throughput and the spectrum efficiency.

Although the embodiments of the present invention have been described above, the contents thereof are merely embodiments adopted to facilitate understanding of the technical aspects of the present invention, and are not intended to limit the present invention. It will be apparent to persons skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An inter-beam cooperative transmission method applied to a wireless access point, comprising:

wherein determining, from the feedback information, a pointing direction of a communication beam transmitted from one or more of the terminals comprises:

determining an offset angle of the position of each terminal relative to the direction of a preset channel detection beam according to the ratio of the signal amplitude and/or the power of two or more channel detection beams with different beam directions in the feedback information and the direction angle of the channel detection beam, and determining the direction of a communication beam of each terminal according to the offset angle;

wherein determining, according to the feedback information, potential interference of the channel sounding beam to a specific terminal under a specific beam pointing direction includes:

if the interference is smaller than or equal to the preset inter-beam interference threshold, judging the channel detection beam pointed by the beam as a channel detection beam not generating potential interference on the terminal for sending the feedback information;

the method further comprises; if the direction of the channel detection beam is larger than the preset inter-beam interference threshold, determining the direction of the channel detection beam as a potential interference direction of a terminal serving other wireless access points in the area adjacent to or overlapped with the service area;

2. The method of claim 1, wherein: transmitting channel sounding beams having different beam orientations into a service area includes:

3. The method of claim 2, wherein the channel sounding beam uses a different frequency or uses a non-identical frequency than a communication beam transmitted by a wireless access point or wherein the channel sounding beam uses a different frequency or uses a non-identical frequency than communication beams transmitted by other wireless access points in areas adjacent to or overlapping with the service area.

4. The method of claim 1, wherein receiving feedback information for the channel sounding beams with different beam pointing directions from one or more terminals located within the service area and/or located within a neighbor area of the service area comprises:

5. The method of claim 4, wherein the channel sounding feedback channel uses a different frequency or does not use exactly the same frequency as the communication beam.

6. The method of claim 1, wherein: the feedback information includes at least one of:

7. An inter-beam cooperative transmission method, applied to a user terminal, includes:

receiving a channel detection beam transmitted by a wireless access point;

a pointing direction of a communication beam transmitted from the terminal;

wherein the wireless access point determining the pointing direction of the communication beam transmitted from the terminal comprises:

wherein the wireless access point determining potential interference of the channel sounding beam to a particular terminal under a particular beam pointing direction comprises:

8. The method according to claim 7, wherein the user terminals comprise terminals located within the service area of the wireless access point and/or within areas covered by other wireless access points adjacent to the service area.

9. The method of claim 7, wherein transmitting feedback information for the channel sounding beam to the wireless access point comprises:

10. The method of claim 9, wherein the channel sounding feedback channel uses a different frequency or does not use exactly the same frequency as the communication beam.

11. The method of claim 7, wherein: the feedback information includes at least one of:

12. The method of claim 8, wherein: the method further comprises the following steps:

13. The method of claim 8, wherein: the method further comprises the following steps:

14. An inter-beam cooperative transmission apparatus, comprising: set up in wireless access point, include:

a pointing of a communication beam transmitted to one or more of the terminals;

the service area is covered by one or more wireless access points;

the first processing module is further configured to:

15. The apparatus of claim 14, wherein: the first transmitting module transmits channel sounding beams with different beam directions to the service area, which means that:

16. The apparatus of claim 14, wherein the first receiving module receiving feedback information for the channel sounding beams with different beam pointing directions from one or more terminals located within the service area and/or located within a neighbor area of the service area means:

17. An inter-beam cooperative transmission apparatus, provided in a user equipment, includes:

a pointing direction of a communication beam transmitted from the terminal;

18. The apparatus of claim 17, wherein the user terminals comprise terminals located within a service area of the wireless access point and/or within an area adjacent to the service area covered by other wireless access points.

19. The apparatus of claim 17, wherein the second transmitting module sending the feedback information of the channel sounding beam to the wireless access point is to:

20. The apparatus of claim 18, wherein: the device further comprises:

21. The apparatus of claim 20, wherein: the second processing module is further configured to:

22. An inter-beam cooperative transmission system, characterized in that: comprising a wireless access point according to any one of claims 14 to 16 and a user terminal according to any one of claims 17 to 21.