Inter-station beam coordinated control method, device and computer-readable storage medium

Abstract

The embodiment of the present invention provides an inter-station beam coordinated control method, device and computer-readable storage medium, the method comprising: exchanging channel state information reference signal (CSI-RS) configuration information with a neighboring base station through an Xn interface, or an S1 interface, or an NG interface, or a relay, or an air interface, for establishing a CSI-RS beam mapping relationship on a network management side or a base station side; the disturbed station determines whether the uplink of the disturbed station is interfered with based on the neighboring beam received in the uplink; when it is determined that the interference is caused, determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship; sending an interference indication to the interfering station, for the interfering station to adjust the beam power and / or beam direction.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to an inter-station beam coordinated control method, device and computer-readable storage medium. Background Art

[0002] When two TDD systems use the same or adjacent frequencies, cross-slot interference will occur if the time slots are not synchronized, such as when the 4.9GHz NR public network uses 7D3U, the industry network uses 1D3U, and / or when SUL and existing 4G are used. When macro stations generate cross-slot interference with macro stations, and macro stations generate cross-slot interference with pico stations, it is difficult to meet the spatial isolation requirements of the two TDD systems, greatly reducing the performance of the system. Before interference elimination or avoidance, interference detection methods are urgently needed to locate or reduce the location of the interference source and the mutual interference relationship. Summary of the invention

[0003] In view of this, embodiments of the present invention are intended to provide a method, apparatus, and computer-readable storage medium for inter-station beam coordination control.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] An embodiment of the present invention provides an inter-station beam coordination control method, which is applied to a disturbed station and includes:

[0006] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0007] Determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink;

[0008] When it is determined that interference is caused, determining an interfering station corresponding to the interference based on the CSI-RS beam mapping relationship;

[0009] An interference indication is sent to the interfering station, so that the interfering station can adjust the beam power and / or beam direction.

[0010] The determining whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink includes:

[0011] Whether the uplink of the interfered station is interfered is determined based on the RSRP and / or the signal to interference plus noise ratio SINR of the CSI-RS downlink reference signal received in the uplink.

[0012] The determining whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR includes:

[0013] For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

[0014] The CSI-RS beam mapping relationship includes, but is not limited to, a one-to-one correspondence between the following items:

[0015] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0016] The determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship includes:

[0017] Based on the resource ID of the interference beam and the CSI-RS beam mapping relationship established by the network management side, the base station identifier, cell identifier and beam identifier ID corresponding to the interference are determined.

[0018] An embodiment of the present invention further provides an inter-station beam cooperative control method, which is applied to an interfering station and includes:

[0019] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0020] Receiving an interference indication; the interference indication is: when the interfered station determines that it is interfered, it determines the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship and sends it;

[0021] Make adjustments to beam power and / or beam direction.

[0022] Before exchanging CSI-RS configuration information with a neighboring cell base station, the method further includes:

[0023] The beam-level CSI-RS is scanned in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

[0024] The CSI-RS beam mapping relationship includes, but is not limited to, a one-to-one correspondence between the following items:

[0025] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0026] An embodiment of the present invention further provides an inter-station beam cooperative control device, which is applied to a disturbed station and includes:

[0027] The first transceiver module is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; and is also used to send an interference indication to the interfering station, so that the interfering station adjusts the beam power and / or beam direction;

[0028] An interference determination module, configured to determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink;

[0029] The determination module is used to determine the interference station corresponding to the interference based on the CSI-RS beam mapping relationship when the interference determination module determines that the interference is caused.

[0030] An embodiment of the present invention further provides an inter-station beam cooperative control device, which is applied to an interfering station and includes:

[0031] The second transceiver module is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; and is also used to receive an interference indication; the interference indication is: when the interfered station determines that it is interfered, it is sent after determining the interference corresponding to the interference based on the CSI-RS beam mapping relationship;

[0032] The processing module is used to adjust the beam power and / or beam direction.

[0033] An embodiment of the present invention further provides an inter-station beam coordinated control device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0034] Wherein, the processor is used to execute the steps of the above method when running the computer program.

[0035] An embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0036] The inter-station beam coordinated control method, device and computer-readable storage medium provided in the embodiment of the present invention interact with the neighboring base station through the Xn interface, or S1 interface, or NG interface, or relay, or air interface to exchange channel state information reference signal (CSI-RS) configuration information, which is used to establish a CSI-RS beam mapping relationship on the network management side or the base station side; the disturbed station determines whether the uplink of the disturbed station is interfered based on the neighboring beam received in the uplink; when it is determined that the interference is caused, the interference station corresponding to the interference is determined based on the CSI-RS beam mapping relationship; an interference indication is sent to the interfering station, which is used for the interfering station to adjust the beam power and / or beam direction. The embodiment of the present invention can locate the interference source problem between base stations (such as: macro station and macro station, macro station and skin station, skin station and skin station), and the adjustment of the beam and / or power by the interfering station can reduce the degree of cross-slot interference, improve the uplink throughput of the cell, and improve the system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The process diagram of the inter-station beam coordination control method according to the embodiment of the present invention is as follows Figure 1 ;

[0038] Figure 2 The process diagram of the inter-station beam coordination control method according to the embodiment of the present invention is as follows Figure 2 ;

[0039] Figure 3 The structure of the inter-station beam coordinated control device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 4 The structure of the inter-station beam coordinated control device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 5 The structure of the inter-station beam coordinated control device according to the embodiment of the present invention is shown in FIG. Figure 3 ;

[0042] Figure 6 It is a schematic diagram of the interfering station periodically scanning the beam-level CSI-RS according to the scenario embodiment of the present invention. DETAILED DESCRIPTION

[0043] The present invention is described below in conjunction with the accompanying drawings and embodiments.

[0044] When macro stations interfere with each other, and macro stations interfere with pico stations, it is difficult to meet the spatial isolation requirements of the two TDD systems, which greatly reduces the performance of the system. Moreover, before the interference is eliminated or avoided, interference detection methods are urgently needed to locate or reduce the location of the interference source and the mutual interference relationship, but the industry has not yet provided relevant solutions for the cross-time slot problem.

[0045] Based on this, an embodiment of the present invention provides an inter-station beam coordination control method, such as Figure 1 As shown, the method is applied to a victim station, comprising:

[0046] Step 100: Exchange CSI-RS configuration information with a neighboring base station through an Xn interface, an S1 interface, an NG interface, a relay, or an air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side;

[0047] Step 101: judging whether the uplink of the interfered station is interfered based on the neighboring cell beam received in uplink;

[0048] Step 102: When it is determined that interference is caused, determining an interfering station corresponding to the interference based on the CSI-RS beam mapping relationship;

[0049] Step 103: Send an interference indication to the interfering station, so that the interfering station can adjust the beam power and / or beam direction.

[0050] The embodiments of the present invention can locate the interference source problems between base stations (such as macro base stations and macro base stations, macro base stations and pico base stations, and pico base stations and pico base stations). Combined with the adjustment of beams and / or power by the interfering stations, the degree of cross-slot interference can be reduced, the uplink throughput of the cell can be improved, and the system performance can be improved.

[0051] Here, the interfered station exchanges CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the relay, or the air interface. The base stations with different frame structure configurations exchange CSI-RS configuration information.

[0052] In the embodiment of the present invention, the determining whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink includes:

[0053] Whether the uplink of the interfered station is interfered is determined based on the received power RSRP and / or the signal to interference plus noise ratio SINR of the CSI-RS downlink reference signal received in the uplink.

[0054] In the embodiment of the present invention, judging whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR includes:

[0055] For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

[0056] In the embodiment of the present invention, the CSI-RS beam mapping relationship includes but is not limited to a one-to-one correspondence between the following items:

[0057] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0058] In actual application, a CSI-RS beam mapping table may be maintained on the network management side, and the above items are in one-to-one correspondence.

[0059] In the embodiment of the present invention, the determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship includes:

[0060] Based on the resource ID of the interference beam and the CSI-RS beam mapping relationship established by the network management side, the base station identifier, cell identifier and beam identifier ID corresponding to the interference are determined.

[0061] In the embodiment of the present invention, the interference indication is consistent with the CSI-RS sent by the interfering station to the interfered station, including: a base station identifier, a cell identifier, a CSI-RS resource identifier, and other contents can be indexed from the network management side.

[0062] The embodiment of the present invention also provides a method for coordinated control of inter-station beams. Figure 2 As shown, the method is applied to a jammer station, comprising:

[0063] Step 200: Exchange CSI-RS configuration information with a neighboring base station through an Xn interface, an S1 interface, an NG interface, a relay, or an air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side;

[0064] Step 201: receiving an interference indication; the interference indication is: when the interfered station determines that it is interfered, it determines the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship and sends it;

[0065] Step 202: Adjust the beam power and / or beam direction.

[0066] In another embodiment of the present invention, before exchanging CSI-RS configuration information with a neighboring cell base station, the method further includes:

[0067] The beam-level CSI-RS is scanned in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

[0068] In the embodiment of the present invention, the CSI-RS beam mapping relationship includes but is not limited to a one-to-one correspondence between the following items:

[0069] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0070] In order to implement the above method embodiment, the embodiment of the present invention also provides an inter-station beam coordinated control device, such as Figure 3 As shown, the device is applied to a disturbed station, comprising:

[0071] The first transceiver module 300 is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; and is also used to send an interference indication to the interfering station, so that the interfering station adjusts the beam power and / or beam direction;

[0072] The interference determination module 301 is used to determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink;

[0073] The determination module 302 is used to determine the interference station corresponding to the interference based on the CSI-RS beam mapping relationship when the interference determination module determines that there is interference.

[0074] In the embodiment of the present invention, the interference determination module 301 determines whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink, including:

[0075] Whether the uplink of the interfered station is interfered is determined based on the received power RSRP and / or the signal to interference plus noise ratio SINR of the CSI-RS downlink reference signal received in the uplink.

[0076] In the embodiment of the present invention, the interference determination module 301 determines whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR, including:

[0077] For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

[0078] In the embodiment of the present invention, the CSI-RS beam mapping relationship includes but is not limited to a one-to-one correspondence between the following items:

[0079] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0080] In actual application, a CSI-RS beam mapping table may be maintained on the network management side, and the above items are in one-to-one correspondence.

[0081] In the embodiment of the present invention, the determining module 302 determines the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship, including:

[0082] Based on the resource ID of the interference beam and the CSI-RS beam mapping relationship established by the network management side, the base station identifier, cell identifier and beam identifier ID corresponding to the interference are determined.

[0083] Here, CSI-RS configuration information is exchanged between base stations with different frame structure configurations.

[0084] The embodiment of the present invention also provides an inter-station beam coordination control device, such as Figure 4 As shown, the device is applied to a jamming station, comprising:

[0085] The second transceiver module 401 is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; and is also used to receive an interference indication; the interference indication is: when the interfered station determines that it is interfered, it is sent after determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship;

[0086] The processing module 402 is used to adjust the beam power and / or beam direction.

[0087] In another embodiment of the present invention, Figure 5 As shown, the device further includes: a scanning module 403, before the second transceiver module 401 exchanges CSI-RS configuration information with the neighboring base station,

[0088] The scanning module 403 is used to scan the beam-level CSI-RS in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

[0089] In the embodiment of the present invention, the CSI-RS beam mapping relationship includes but is not limited to a one-to-one correspondence between the following items:

[0090] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0091] An embodiment of the present invention further provides an inter-station beam coordinated control device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0092] Wherein, when the processor is used to run the computer program, it executes:

[0093] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0094] Determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink;

[0095] When it is determined that interference is caused, determining an interfering station corresponding to the interference based on the CSI-RS beam mapping relationship;

[0096] An interference indication is sent to the interfering station, so that the interfering station can adjust the beam power and / or beam direction.

[0097] When judging whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink, the processor is further configured to execute, when running the computer program:

[0098] Whether the uplink of the interfered station is interfered is determined based on the received power RSRP and / or the signal to interference plus noise ratio SINR of the CSI-RS downlink reference signal received in the uplink.

[0099] When judging whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR, the processor is further configured to execute, when running the computer program:

[0100] For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

[0101] The CSI-RS beam mapping relationship includes, but is not limited to, a one-to-one correspondence between the following items:

[0102] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0103] When determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship, the processor is further configured to execute, when running the computer program:

[0104] Based on the resource ID of the interference beam and the CSI-RS beam mapping relationship established by the network management side, the base station identifier, cell identifier and beam identifier ID corresponding to the interference are determined.

[0105] An embodiment of the present invention further provides an inter-station beam coordinated control device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0106] Wherein, when the processor is used to run the computer program, it executes:

[0107] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0108] Receiving an interference indication; the interference indication is: when the interfered station determines that it is interfered, it determines the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship and sends it;

[0109] Make adjustments to beam power and / or beam direction.

[0110] Before exchanging CSI-RS configuration information with a neighboring cell base station, the processor is further configured to execute, when running the computer program:

[0111] The beam-level CSI-RS is scanned in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

[0112] It should be noted that: the device provided in the above embodiment only uses the division of the above program modules as an example when performing inter-station beam coordinated control. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the corresponding method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0113] In an exemplary embodiment, an embodiment of the present invention further provides a computer-readable storage medium, which may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0114] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0115] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0116] Determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink;

[0117] When it is determined that interference is caused, determining an interfering station corresponding to the interference based on the CSI-RS beam mapping relationship;

[0118] An interference indication is sent to the interfering station, so that the interfering station can adjust the beam power and / or beam direction.

[0119] When judging whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink, when the computer program is executed by the processor, the following steps are further performed:

[0120] Whether the uplink of the interfered station is interfered is determined based on the received power RSRP and / or SINR of the CSI-RS downlink reference signal received in the uplink.

[0121] When judging whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR, the computer program is executed by the processor and further executes:

[0122] For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

[0123] The CSI-RS beam mapping relationship includes, but is not limited to, a one-to-one correspondence between the following items:

[0124] Base station ID, cell ID, beam ID, CSI-RS resource ID, and scrambling ID.

[0125] When determining the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship, the computer program is executed by the processor and further executes:

[0126] Based on the resource ID of the interference beam and the CSI-RS beam mapping relationship established by the network management side, the base station identifier, cell identifier and beam identifier ID corresponding to the interference are determined.

[0127] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0128] Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side;

[0129] Receiving an interference indication; the interference indication is: when the interfered station determines that it is interfered, it determines the interfering station corresponding to the interference based on the CSI-RS beam mapping relationship and sends it;

[0130] Make adjustments to beam power and / or beam direction.

[0131] Before exchanging CSI-RS configuration information with a neighboring cell base station, when the computer program is executed by the processor, the following steps are further performed:

[0132] The beam-level CSI-RS is scanned in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

[0133] The present invention is described below in conjunction with scenario embodiments.

[0134] The scenarios involved in this embodiment may be as follows:

[0135] Scenario 1: For macro sites and macro sites, downlink interference to uplink, and simultaneous slot interference;

[0136] Scenario 2: For macro and pico base stations, the macro downlink interferes with the pico base station uplink, or the pico base station downlink interferes with the macro uplink, as well as simultaneous slot interference;

[0137] Scenario 3: For the two skin stations, downlink interference to uplink, and simultaneous slot interference.

[0138] It should be noted that due to the uncertainty of the terminal's mobile position and the low transmission power, this embodiment does not involve terminal-related interference scenarios.

[0139] For the above scenario, the process of the CSI-RS inter-station beam coordinated control method provided in this embodiment is as follows, including:

[0140] Step 1: The network management side monitors whether there is a base station with a different frame structure configuration. If so, all potential interfering base stations (interfering stations) within the range scan the beam-level CSI-RS in a periodic manner, such as Figure 6 As shown, different beams correspond to different CSI-RS resource identifiers (resource IDs) (base station implementation solution). At the same time, a mapping table between beam ID and CSI-RS resource ID is maintained on the network management side as shown in Table 1 below:

[0141]

[0142] Table 1

[0143] Step 2: The base station cluster exchanges CSI-RS configuration information through the Xn interface, or the S1 interface, or the relay, or the air interface (eg, the interfering station sends the CSI-RS configuration information to the interfered station through the above interface), as shown below:

[0144]

[0145] Among them, the CSI-RS configuration information may include: NZP-CSI-RS-ResourceId, scrambling ID and other information; at the same time, the scramblingID (standard definition 10bit length) and eNB-ID and cell ID index relationship (as shown in Table 2) are supplemented in the mapping table on the network management side to ensure that there is a one-to-one mapping relationship between CSI-RS beam ID-NZP-CSI-RS-ResourceId-cell ID-eNB-ID.

[0146]

[0147] Table 2

[0148] Step 3: The disturbed base station receives the neighboring cell beam in uplink and determines whether its uplink is subject to strong interference (i.e., the interference described above) and the source of the strong interference; if it is determined to be strong interference, the corresponding eNB-ID, cell ID and beam ID are obtained by querying Table 2 according to the resource ID of the strong interference, and a "strong interference" indication is sent to the disturbing base station.

[0149] The strong interference is judged according to the CSI-RS RSRP, which can be specifically as follows:

[0150] For the received CSI-RS reference signal, if the ratio of the RSRP received by the resource ID (such as ID=1) corresponding to a beam to the RSRP received by the resource ID (ID=2, 3, 4, ... 15) corresponding to other beams is greater than the preset threshold THR, it is considered that the beam corresponding to resource ID=1 has strong interference.

[0151] Step 4: After receiving the "strong interference" indication from the neighboring cell, the interfering base station makes a comprehensive judgment within the effective time to decide whether to adjust the power or shift the beam direction, so as to effectively avoid the strong interference caused by the strongest beam of its macro station to the service cell.

[0152] It can be seen that through the above-mentioned CSI-RS inter-station beam coordinated control scheme, the interference source problems between macro stations and macro stations, macro stations and pico stations, and pico stations and pico stations can be located. Combined with the adjustment of beams and power, the degree of cross-slot interference can be reduced, the cell uplink throughput can be increased, and the system performance can be improved.

[0153] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A method for coordinated beam control between stations, characterized in that: The method is applied to the interfered station, comprising: Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side; Determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink; When it is determined that interference is caused, determining an interfering station corresponding to the interference based on the CSI-RS beam mapping relationship; Sending an interference indication to the interfering station, so that the interfering station can adjust the beam power and / or beam direction; The CSI-RS beam mapping relationship includes a one-to-one correspondence between the following items: Base station ID, cell ID, beam ID, CSI-RS resource ID, scrambling ID; different beams correspond to different CSI-RS resource IDs; The determining, based on the CSI-RS beam mapping relationship, an interfering station corresponding to the interference includes: Based on the resource identifier of the interference beam and the CSI-RS beam mapping relationship, the base station identifier, cell identifier and beam identifier corresponding to the interference are determined.

2. The method according to claim 1, characterized in that The determining whether the uplink of the interfered station is interfered based on the neighboring cell beam received uplink includes: Whether the uplink of the interfered station is interfered is determined based on the RSRP and / or the signal to interference plus noise ratio SINR of the CSI-RS downlink reference signal received in the uplink.

3. The method according to claim 2, characterized in that The determining whether the uplink of the interfered station is interfered based on the uplink received CSI-RS RSRP and / or SINR includes: For the uplink received CSI-RS, if the ratio of the RSRP received by the resource identifier resource ID corresponding to one beam to the RSRP received by the resource identifier resource ID corresponding to other beams is greater than the preset threshold THR, then it is considered that the beam has interference.

4. A method for coordinated beam control between stations, characterized in that: The method is applied to a jammer station, comprising: Exchange channel state information reference signal CSI-RS configuration information with neighboring base stations through Xn interface, S1 interface, NG interface, relay, or air interface to establish CSI-RS beam mapping relationship on the network management side or base station side; Receive an interference indication; the interference indication is: when the interfered station determines that it is interfered, the base station identifier, cell identifier and beam identifier corresponding to the interference are determined based on the resource identifier of the interference beam and the CSI-RS beam mapping relationship and then sent; Performing adjustment of beam power and / or beam direction; The CSI-RS beam mapping relationship includes a one-to-one correspondence between the following items: Base station identifier, cell identifier, beam identifier ID, CSI-RS resource identifier, scrambling ID; different beams correspond to different CSI-RS resource identifiers.

5. The method according to claim 4, characterized in that Before exchanging CSI-RS configuration information with the neighboring cell base station, the method further includes: The beam-level CSI-RS is scanned in a periodic manner, so as to establish a CSI-RS beam mapping relationship on the network management side.

6. An inter-station beam coordinated control device, characterized in that: The device is applied to the disturbed station, including: The first transceiver module is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; it is also used to send an interference indication to the interfering station, so that the interfering station can adjust the beam power and / or beam direction; wherein the CSI-RS beam mapping relationship includes a one-to-one correspondence between the following items: base station identifier, cell identifier, beam identifier ID, CSI-RS resource identifier, scrambling identifier Scrambling ID; different beams correspond to different CSI-RS resource identifiers; An interference determination module, configured to determine whether the uplink of the interfered station is interfered based on the neighboring cell beam received in the uplink; A determination module, configured to determine, when the interference determination module determines that interference is being caused, based on the CSI-RS beam mapping relationship, an interfering station corresponding to the interference; Among them, the determination module is specifically used to: determine the base station identifier, cell identifier and beam identifier corresponding to the interference based on the resource identifier of the interference beam and the CSI-RS beam mapping relationship.

7. An inter-station beam coordinated control device, characterized in that: The device is applied to the jamming station, including: The second transceiver module is used to exchange channel state information reference signal CSI-RS configuration information with the neighboring base station through the Xn interface, or the S1 interface, or the NG interface, or the relay, or the air interface, so as to establish a CSI-RS beam mapping relationship on the network management side or the base station side; it is also used to receive an interference indication; the interference indication is: when the interfered station determines that it is interfered, the base station identifier, cell identifier and beam identifier corresponding to the interference are determined based on the resource identifier of the interference beam and the CSI-RS beam mapping relationship, and then sent; wherein the CSI-RS beam mapping relationship includes a one-to-one correspondence between the following items: base station identifier, cell identifier, beam identifier ID, CSI-RS resource identifier, scrambling identifier Scrambling ID; different beams correspond to different CSI-RS resource identifiers; The processing module is used to adjust the beam power and / or beam direction.

8. An inter-station beam coordinated control device, characterized in that: The apparatus comprises: a processor and a memory for storing a computer program capable of running on the processor, Wherein, when the processor is used to run the computer program, it executes the steps of the method described in any one of claims 1 to 3, or executes the steps of the method described in any one of claims 4 or 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the computer program implements the steps of the method described in any one of claims 1 to 3, or implements the steps of the method described in any one of claims 4 or 5.

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